Report unknown blob figures for a snapshot whose manifest cannot be read (closes #272)

When remote info could not read a snapshot's manifest, the orphan
figures were unknown but the snapshot's row still gave 0 blobs and 0 B,
in the table and in --json. The row's blob count and blob size are now
unknown, and null in --json.

A directory with no manifest, as an interrupted backup leaves, still
shows 0: the orphan figures count its blobs as orphaned, so it
references none.

The constant holding the "unknown" text is renamed from countUnknown to
unknownText, since it now also stands for a size.

Model: opus-5-5

ARCHITECTURE.md

@@ -279,8 +279,8 @@ Key methods:
 - `Scan(ctx, path, snapshotID)` → Main scan operation
 
 Scan phases:
-1. **Phase 1**: Walk directory, identify files needing processing
+1. **Phase 0**: Detect deleted files from previous snapshots
-2. **Phase 1b**: Count as deleted the files that the previous snapshot of the same name lists, the walk did not find, and are gone from disk; a file that is excluded, or inside an excluded directory, is not counted
+2. **Phase 1**: Walk directory, identify files needing processing
 3. **Phase 2**: Process files (chunk → pack → upload)
 
 #### SnapshotManager
@@ -311,8 +311,6 @@ Repository interfaces:
 
 ```
 CreateSnapshot(opts)
-    │
-    ├─► markDestination()   // Check the marker (see Storage Layout in S3), then write it
     │
     ├─► PruneDatabase()   // Critical: avoid dedup errors
     │
@@ -322,13 +320,13 @@ CreateSnapshot(opts)
     │       │
     │       ├─► scanner.Scan(ctx, path, snapshotID)
     │       │       │
+    │       │       ├─► Phase 0: detectDeletedFiles()
+    │       │       │
     │       │       ├─► Phase 1: scanPhase()
     │       │       │       Walk directory
     │       │       │       Check file metadata changes
     │       │       │       Build list of files to process
     │       │       │
-    │       │       ├─► Phase 1b: detectDeletedFiles()
-    │       │       │
     │       │       └─► Phase 2: processPhase()
     │       │               For each file:
     │       │                   chunker.ChunkReaderStreaming()
@@ -359,7 +357,7 @@ CreateSnapshot(opts)
 
 ## Deduplication Strategy
 
-1. **File-level**: Files and symlinks unchanged since last backup are skipped (metadata comparison: size, mtime, mode, uid, gid, and a symlink's target), unless the file lists a chunk that no uploaded blob holds; such a file is re-chunked
+1. **File-level**: Files unchanged since last backup are skipped (metadata comparison: size, mtime, mode, uid, gid), unless the file lists a chunk that no uploaded blob holds; such a file is re-chunked
 
 2. **Chunk-level**: Chunks are content-addressed by SHA256 hash. If a chunk hash already exists in the database, the chunk data is not re-uploaded.
 
@@ -369,8 +367,6 @@ CreateSnapshot(opts)
 
 ```
 bucket/
-├── vaultik-destination.txt          # Marker written by every backup
-│
 ├── blobs/
 │   └── {hash[0:2]}/
 │       └── {hash[2:4]}/
@@ -382,21 +378,6 @@ bucket/
         └── manifest.json.zst        # Blob list (for pruning/verification)
 ```
 
-A destination that answers a look-up of `vaultik-destination.txt` with not
-found is treated as not present while the local index holds snapshots stored
-there (`checkDestinationMarker` in `internal/vaultik/destination_marker.go`):
-`snapshot create` refuses to write to it, `prune`, `snapshot purge` and
-`remote nuke` fail, and `snapshot list` and `snapshot remove` behave as for a
-destination that cannot be listed. This keeps those commands from taking an
-unplugged volume's empty mount point for a destination whose snapshots are
-all gone. When the look-up fails for any reason other than not found, for
-example when S3 refuses it to credentials that allow only PUT, the check is
-skipped, so a host with such credentials does not notice an emptied
-destination; see
-[docs/REPOSTRUCTURE.md](docs/REPOSTRUCTURE.md#marker-file-vaultik-destinationtxt).
-The `file://` backend never creates its destination directory, so a write to a
-missing one fails.
-
 The `{remote-key}` directory name is a one-way double SHA-256 hash of the human
 snapshot ID, so the human ID (hostname, snapshot name, timestamp) is never
 written to the store as a directory name. See

Dockerfile

@@ -5,16 +5,7 @@
 FROM golangci/golangci-lint:v2.14.0@sha256:ad862ba6b3798cbe0fd9fd7408d498fd74fbd2623a92406b2fd3898faf0bf98f AS lint
 WORKDIR /src
 COPY go.mod go.sum ./
-# Without the time limit a stalled connection to the module proxy holds
+RUN go mod download
-# this step, and every build on the host sharing it, until the kernel
-# drops the connection, which can take an hour. The limit is well above
-# the three minutes a working download can take on a busy build host.
-RUN for attempt in 1 2 3; do \
-        timeout 300 go mod download && exit 0; \
-        echo "go mod download attempt $attempt failed or ran over 300s" >&2; \
-    done; \
-    echo "module download failed: giving up after 3 attempts" >&2; \
-    exit 1
 COPY . .
 # `golangci-lint run` silently ignores an unknown top-level key in
 # .golangci.yml, such as a misspelt `linters:`; `config verify` fails on it.
@@ -27,13 +18,7 @@ RUN golangci-lint run --config .golangci.yml ./...
 FROM golang:1.26.1@sha256:cd78d88e00afadbedd272f977d375a6247455f3a4b1178f8ae8bbcb201743a8a AS test
 WORKDIR /src
 COPY go.mod go.sum ./
-# Limited and retried as in the lint phase above.
+RUN go mod download
-RUN for attempt in 1 2 3; do \
-        timeout 300 go mod download && exit 0; \
-        echo "go mod download attempt $attempt failed or ran over 300s" >&2; \
-    done; \
-    echo "module download failed: giving up after 3 attempts" >&2; \
-    exit 1
 COPY . .
 RUN go test -timeout 90s -race -cover ./... || \
     { echo "--- Rerunning with -v for details ---"; \
@@ -51,13 +36,7 @@ RUN apk add --no-cache git
 RUN git config --system --add safe.directory /src
 WORKDIR /src
 COPY go.mod go.sum ./
-# Limited and retried as in the lint phase above.
+RUN go mod download
-RUN for attempt in 1 2 3; do \
-        timeout 300 go mod download && exit 0; \
-        echo "go mod download attempt $attempt failed or ran over 300s" >&2; \
-    done; \
-    echo "module download failed: giving up after 3 attempts" >&2; \
-    exit 1
 COPY . .
 
 # The VERSION build arg when one is given, otherwise

README.md

@@ -24,10 +24,6 @@ grep 'public key' vaultik_backup_private_key.txt
 vaultik config set age_recipients.0 age1YOUR_PUBLIC_KEY_HERE
 vaultik config set storage_url "file:///Volumes/usbstick/mybackup"
 
-# create the destination directory; vaultik never creates it, so a backup
-# to a volume that is not plugged in fails instead of filling the disk
-mkdir /Volumes/usbstick/mybackup
-
 # macOS only: grant your terminal app Full Disk Access first
 # (System Settings → Privacy & Security → Full Disk Access), otherwise
 # the backup will abort with a permission error on protected directories
@@ -96,15 +92,6 @@ vaultik snapshot restore <snapshot-id> ~/vaultik-restore
 # 0 3 * * * vaultik snapshot create --cron --prune --keep-newer-than 4w
 ```
 
-On a destination shared between hosts or users, the prune in that cron line
-relies on `prune_grace_period` (default `24h`) to leave the blobs of a backup
-another one is still running, and its directory under `metadata/` that has no
-manifest yet, so it must be longer than the longest backup run. It does not
-protect a blob that backup reuses from an earlier run that stopped before its
-manifest: the prune can delete such a blob, and the new snapshot then cannot
-be restored. To not depend on the grace period, give each host its own prefix
-or directory. See [locking](#locking).
-
 ## restoring on another machine
 
 Restoring on a host that never ran the backup — a replacement machine
@@ -191,7 +178,7 @@ vaultik version
 * `--verbose`, `-v`: Enable verbose output (on stderr — see below)
 * `--debug`: Enable debug output (on stderr — see below)
 * `--quiet`, `-q`: Suppress non-error output (also suppresses startup banner)
-* `--skip-errors`: Skip files that cannot be read when creating a snapshot, or that cannot be restored when restoring, instead of aborting. Packing and storage errors while creating a snapshot (which would leave a chunk recorded but not stored) still abort the run. A run that skipped anything still finishes but exits non-zero: `snapshot create` keeps the snapshot and counts each file or directory it skipped as failed. A file removed during the backup is also counted as failed but does not change the exit status.
+* `--skip-errors`: Skip files that cannot be read when creating a snapshot, or that cannot be restored when restoring, instead of aborting. Packing and storage errors while creating a snapshot (which would leave a chunk recorded but not stored) still abort the run.
 
 ### locking
 
@@ -201,23 +188,7 @@ process-wide lock at `$XDG_DATA_HOME/vaultik/vaultik.pid`
 (`~/.local/share/vaultik/vaultik.pid` on Linux) for the whole run. Only
 one of them runs at a time: a second one exits immediately with an
 "already running" error rather than waiting, so two writers can never
-corrupt the local index.
+corrupt the local index or the destination store.
-
-The lock covers one user on one machine. It does not stop another user,
-or another host, from writing to the same destination store at the same
-time. A backup uploads its blobs, and then its `db.zst.age`, before its
-manifest, so a prune from elsewhere at that moment finds blobs no snapshot
-lists and a directory under `metadata/` with no manifest. It
-deletes such a blob only once it is older than `prune_grace_period` (default
-`24h`), and such a directory only once every object in it is, so the grace
-period must be longer than the longest backup run of any host or user sharing
-the destination. The grace period does not protect a blob a backup reuses
-from an earlier run that stopped before its manifest: a backup skips the
-upload of a blob already on the destination, so that blob keeps the time of
-its first upload, and a prune from elsewhere during the backup can delete it;
-the new snapshot then cannot be restored. `remote nuke` deletes everything
-regardless. To not depend on the grace period, give each host or user its own
-prefix (or directory) on the destination.
 
 Read-only commands — `info`, `snapshot list`, `snapshot verify`, and
 `remote info` — do not take the lock and are never blocked, so they run
@@ -300,17 +271,8 @@ existing file. Created with mode `0600` since it will contain credentials.
 **`config set`**: Set a scalar config value by dotted YAML path
 (e.g. `vaultik config set compression_level 9`,
 `vaultik config set storage_url "file:///mnt/backups"`). Comments and
-formatting in the file are preserved. Missing keys along the path are
+formatting in the file are preserved; intermediate maps are created as
-created: as a list when the next path element is a number (so
+needed.
-`vaultik config set age_recipients.0 age1...` works on a file without
-`age_recipients`), otherwise as a map. If the config loads, a change
-after which it would not, such as `vaultik config set compression_level 99`,
-is refused and the file is left unchanged. A config that does not load,
-such as the one `config init` writes before `storage_url` is set or one
-with a `${ENV:...}` reference to a variable not set in this shell, is
-checked one setting at a time: only a change after which the changed
-setting cannot be read, such as one giving it the wrong type (a single
-value where a list belongs or a word where a number belongs), is refused.
 
 **`snapshot create`**: Perform incremental backup of configured snapshots.
 * Optional snapshot names argument to create specific snapshots (default: all)
@@ -320,53 +282,17 @@ value where a list belongs or a word where a number belongs), is refused.
   error that explains how to fix it
 * `--cron`: Silent on total success; warnings and errors are still printed
   (for crontab)
-* `--prune`: After backup, drop older snapshots of each backed-up name,
+* `--prune`: After backup, drop older snapshots of each backed-up name and
-  remove orphaned blobs older than `prune_grace_period` from remote storage,
+  remove orphaned blobs from remote storage. By default keeps only the latest
-  and delete each directory under `metadata/` that has no
+  snapshot per name; use `--keep-newer-than` for a rolling window.
-  `manifest.json.zst` once every object in it is older than
-  `prune_grace_period` and its snapshot is not in the local index, as `prune`
-  does. By default keeps only the latest
-  snapshot per name; use `--keep-newer-than` for a rolling window. When
-  `--skip-errors` skipped a file or directory it could not read or list, the
-  prune does not run and every older snapshot is kept, since one of them may
-  be the only one that holds what was skipped; the command says so and exits
-  non-zero. When the backup found nothing in a configured path, as in the
-  mount point of a volume that is not mounted, the prune does not run
-  either: every older snapshot is kept, and the command names the path and
-  exits non-zero, on every run until the path holds something again. Take a
-  path that is empty on purpose out of the config, or remove the older
-  snapshots by hand with `snapshot purge`. When an earlier snapshot of the
-  same name in the local index found a volume mounted at or below a
-  configured path (a directory on a different filesystem from its parent,
-  with an entry in it that the backup does not exclude) and this backup does
-  not, the prune does not run either: every older snapshot is kept, and the
-  command names the directory and exits non-zero, on every run until the
-  volume is mounted again. A backup also does not find the volume when it
-  finds no such entry in its directory, as when an automounted volume cannot
-  be mounted, or when that directory is no longer backed up, because it is
-  excluded or its configured path was removed. If any of this is on purpose,
-  as for a retired volume, remove the older snapshots by hand with
-  `snapshot purge`. A file removed during the backup does not stop the
-  prune.
 * `--keep-newer-than <duration>`: With `--prune`, keep snapshots newer than
-  this duration instead of only the latest (e.g. `4w`, `30d`, `6mo`, `1y`).
+  this duration instead of only the latest (e.g. `4w`, `30d`, `6mo`, `1y`)
-  Without `--prune`, or with a value that is not a valid duration, the
-  command fails before the backup starts.
-* Fails before it writes anything when a `file://` destination directory
-  does not exist, or when the local index holds snapshots and the
-  destination answers that it has no `vaultik-destination.txt`. When that
-  look-up fails for any reason other than not found, for example when S3
-  refuses it to credentials that allow only PUT, the check is skipped (see
-  [remote storage layout](#remote-storage-layout))
-* Fails, before anything is pruned, when a configured path is a symlink
-  whose target does not exist, as one into a volume that is not mounted
 
 **`snapshot list`**: Show every snapshot known to this host — the union
 of the local index and the backup destination store — with timestamps
 and three sizes per snapshot (compressed remote size; total
-uncompressed chunk size; size of the chunks that snapshot stored that
+uncompressed chunk size; size of chunks newly referenced by that
-were not stored before). Both chunk sizes are recorded when the
+snapshot).
-snapshot's backup runs.
 
 Listing the destination store does **not** require the age secret key,
 so it works in vaultik's intended configuration, where the backed-up
@@ -379,33 +305,24 @@ only the hash, so hostname and snapshot name exist solely in the local
 index and in the encrypted per-snapshot database. Snapshots found only
 on the destination store are therefore listed as
 `<remote only:<abbreviated remote key>>` and show `<remote only>` in
-the uncompressed and "new chunk" columns, which come only from the
+the uncompressed and "new chunk" columns, which can only be computed
-local index. Their timestamp and compressed size are real,
+from the local index. Their timestamp and compressed size are real,
 read from the manifest.
 
 Snapshots in the local index with no counterpart on the destination
 store are reported below the table as drift, with the `vaultik prune`
-invocation that reconciles them. If the local index is bound to a
+invocation that reconciles them.
-different destination than the configured one (after a change to
-`storage_url`, or `s3.endpoint`, `s3.bucket` or `s3.prefix`), the
-command says so instead and gives the same two ways out that `prune`
-gives: revert the configuration, or run `vaultik database delete`.
 
 If the destination store cannot be listed (unmounted volume,
 permission denied, network down), the command warns, falls back to the
-local index alone, and still exits zero. It does the same when the
+local index alone, and still exits zero.
-destination answers that it has no `vaultik-destination.txt` while the
-local index holds snapshots stored there, as when a volume mounted at
-the destination is unplugged and leaves its empty mount point behind.
 * `--json`: Output in JSON format. Each entry carries `locally_tracked`
   (whether the snapshot is in the local index), `remote_key` (the full
   64-character storage key), and `remote_present` (whether it was seen
   on the destination store, or `null` if the destination could not be
-  listed). Warnings about an unlistable destination, a local index
+  listed). Warnings about an unlistable destination, unreadable
-  bound to a different destination (with both destinations and the
+  manifests, and a truncated listing all go to stderr through the
-  same two ways out), unreadable manifests, and a truncated listing all
+  logger, so stdout stays a single parseable document.
-  go to stderr through the logger, so stdout stays a single parseable
-  document.
 
 **`snapshot verify`**: Verify snapshot integrity.
 * Default (shallow): checks that every blob the manifest lists is present in
@@ -431,21 +348,14 @@ snapshot from the local index and strips the snapshot's metadata from
 the backup destination store. Blobs are NOT touched — deleting blobs
 requires reading every remaining remote manifest (the destination store
 may hold snapshots this host doesn't know about), which is what
-`vaultik prune` does. The command prints the `vaultik prune` invocation
+`vaultik prune` does. On success the command prints the exact `vaultik
-to run as a follow-up only when it removed the snapshot's metadata from
+prune` invocation to run as a follow-up. Local row cleanup (files,
-the destination store, and never under `--json`. An ID that names no
+chunks, blobs the snapshot was the last referrer for) runs
-snapshot in the local index or on the destination store is an error;
+automatically. If the destination store is unreachable, the local-DB
-with `--local-only`, the snapshot must be in the local index. Local row
+removal still completes and a warning is emitted; run `vaultik snapshot
-cleanup (files, chunks, blobs the snapshot was the last referrer for)
+remove <snapshot-id>` again once the store is reachable to remove the
-runs automatically. If removing the snapshot's metadata from the
+snapshot's metadata from it (`vaultik prune` does not). To wipe everything
-destination store fails (for example because the store is unreachable,
+on the destination in one go, use `vaultik remote nuke --force`.
-or the local index holds snapshots and the destination answers that it
-has no `vaultik-destination.txt`), the local-DB removal still completes and a
-warning is emitted; run `vaultik snapshot remove <snapshot-id>` again
-once the store is reachable to remove the snapshot's metadata from it
-(`vaultik prune` does not). For a snapshot that is only on the
-destination store, that failure is an error. To wipe everything on the
-destination in one go, use `vaultik remote nuke --force`.
 * `--local-only`: Skip remote cleanup; only touch the local index
 * `--dry-run`: Show what would be deleted without deleting
 * `--force`: Skip confirmation prompt
@@ -458,14 +368,10 @@ destination in one go, use `vaultik remote nuke --force`.
   store — its remote key (or an unambiguous leading part of it) as shown
   by `snapshot list`. See
   [restoring on another machine](#restoring-on-another-machine).
-* Optional path arguments to restore specific files/directories (default: all).
+* Optional path arguments to restore specific files/directories (default: all)
-  A path that matches nothing in the snapshot is named in a warning, and the
-  command exits non-zero after restoring the paths that match.
 * Preserves file permissions, timestamps, ownership (ownership requires root),
   symlinks, and empty directories
-* `--verify`: After restoring, verify every restored file's chunk hashes
+* `--verify`: After restoring, verify every file's chunk hashes match
-  match. A file skipped under `--skip-errors` is reported as failed to
-  restore and is not verified.
 
 **`prune`**: Tidy up everything that isn't needed. Runs three passes:
 (1) reconcile the local index against the destination store — any
@@ -473,35 +379,13 @@ local snapshot whose remote metadata is missing is dropped from the
 local index; (2) delete orphaned local rows (files, chunks, blobs no
 longer referenced by any completed snapshot); (3) list every remote
 manifest on the destination store to compute the still-referenced blob
-set and delete any blob not in that set that is older than
+set and delete any blob not in that set. Step (3) reads all remote
-`prune_grace_period` (default `24h`). A newer one is kept and counted: it
+manifests — network cost scales with the number of snapshots. `snapshot
-may belong to a backup still running, on this host or another sharing the
+create --prune` runs the same cleanup automatically; this is the
-destination store, that has not yet uploaded its manifest. The grace period
+manual entry point for the same work.
-does not protect a blob such a backup reuses from an earlier run that stopped
-before its manifest: that blob keeps the time of its first upload, so it can
-be deleted. Step (3) also deletes each directory under `metadata/` that has
-no `manifest.json.zst`, as a backup leaves when it stops after uploading
-`db.zst.age` but before its manifest, once every object in it is older than
-`prune_grace_period` and its snapshot is not in the local index. An object the
-listing gives no time for keeps its directory, and a directory whose name is
-not a remote key is left alone. Step (3) reads all remote manifests — network
-cost scales with the number of snapshots.
-`snapshot create --prune` runs the same cleanup automatically; this is the
-manual entry point for the same work. If the destination store cannot
-be listed, or the local index holds snapshots and the destination answers
-that it has no `vaultik-destination.txt` (an unplugged volume's empty mount
-point), prune fails and deletes nothing. `snapshot purge` does the same. If a
-blob or such a directory cannot be deleted, the command (and
-`snapshot create --prune`) exits non-zero.
 * `--force`: Skip confirmation prompt
 * `--json`: Output stats as JSON. Also skips the confirmation prompt, as
-  `--force` does. A blob that cannot be deleted is counted in
+  `--force` does.
-  `blobs_failed`, and the document is printed before the non-zero exit.
-  A blob kept for being newer than `prune_grace_period`, or because the
-  listing of the destination gives no time for it, is counted in
-  `blobs_too_new` and not in `blobs_found`. A directory under `metadata/`
-  with no manifest is counted in `metadata_dirs_deleted` once deleted, or
-  in `metadata_dirs_failed` if it cannot be.
 
 **`info`**: Display system configuration, storage settings, encryption
 recipients, and local database statistics.
@@ -515,31 +399,20 @@ orphaned blob figures are reported as unknown; `--json` gives them as
 `null`, lists the remote key of each unreadable manifest in
 `unreadable_manifests` and counts the manifests under skipped names in
 `skipped_manifest_count`. An unreadable manifest also leaves its
-snapshot's blob count and blob size unknown, `null` in `--json`. A file
+snapshot's blob count and blob size unknown, `null` in `--json`.
-under `blobs/` whose name is not a blob hash is not counted as a blob,
-since `prune` never deletes it.
 * `--json`: Output as JSON
 
-**`remote nuke`**: Delete every object under `metadata/` and `blobs/` on
+**`remote nuke`**: Delete every snapshot's metadata and every blob from the
-the backup destination store, whatever its name, and then
+backup destination store, leaving the bucket prefix empty. Destructive and
-`vaultik-destination.txt`, leaving the bucket prefix empty. Destructive
+irreversible. This is the single supported way to wipe the entire
-and irreversible. This is the single supported way to wipe the entire
+destination store.
-destination store. A snapshot is removed from the local index only once
-its metadata is deleted from the destination store. If the destination
-store cannot be listed, or the local index holds snapshots and the
-destination answers that it has no `vaultik-destination.txt` (an unplugged
-volume's empty mount point), the command fails before it removes anything. If a
-listing afterwards still finds anything under `metadata/` or `blobs/`,
-the command names each object left and exits non-zero; running it again
-deletes what is left.
 * `--force`: Required to confirm destruction.
 
 **`database delete`**: Delete the local SQLite state database file
 entirely. Remote storage is unaffected; the next backup will do a full
 scan and re-deduplicate against existing remote blobs, and the local
 index will re-bind to the currently configured storage destination.
-Use this after changing `storage_url`, or `s3.endpoint`, `s3.bucket` or
+Use this after changing `storage_url` to a different destination.
-`s3.prefix`, to a different destination.
 * `--force`: Skip confirmation prompt
 
 ---
@@ -553,15 +426,7 @@ object store. Credentials are read from `s3.access_key_id` and
 `s3.secret_access_key` in the config file.
 
 **Local filesystem** (`file:///path/to/backup`): Stores blobs and metadata on
-a local or mounted filesystem. Useful for testing or backing up to a NAS. The
+a local or mounted filesystem. Useful for testing or backing up to a NAS.
-path must be absolute; a relative one is refused when the config loads.
-Percent-escapes in the path are decoded, so `my%20stick` and `my stick` name
-the same directory. The directory must exist before the first backup: vaultik
-never creates it. A directory on a removable volume is gone while the volume is
-not mounted, so a backup then fails instead of writing to the disk under the
-mount point. The mount point itself stays behind when the volume is unplugged:
-there only `vaultik-destination.txt` stops such a backup, and only while the
-local index holds snapshots.
 
 **Rclone** (`rclone://remote/path`): Uses rclone's 70+ supported cloud
 providers. Requires rclone to be configured separately (`rclone config`).
@@ -576,15 +441,6 @@ being written, a killed upload can leave a truncated object under its name,
 which a later backup takes for complete. A leftover `.partial` file is ignored
 and can be deleted.
 
-A destination shared between hosts or users, each with its own local index,
-relies on `prune_grace_period` to keep one's prune from deleting the blobs of
-another's backup still running, or its directory under `metadata/` that has
-no manifest yet, so it must be longer than the longest backup run. It does not
-protect a blob that backup reuses from an earlier run that
-stopped before its manifest, which the prune can delete. To not depend on the
-grace period, give each host its own prefix (or directory). See
-[locking](#locking).
-
 Legacy S3 configuration via `s3.*` fields (endpoint, bucket, prefix, etc.) is
 still supported for backward compatibility. `storage_url` takes precedence if
 both are set.
@@ -601,7 +457,6 @@ For an implementation-level view of the internals — the data model, the
 
 ```
 <bucket>/<prefix>/
-├── vaultik-destination.txt     # Marker written by every backup
 ├── blobs/
 │   └── <aa>/<bb>/<full_blob_hash>
 └── metadata/
@@ -610,23 +465,6 @@ For an implementation-level view of the internals — the data model, the
         └── manifest.json.zst   # Unencrypted blob list (for pruning)
 ```
 
-* `vaultik-destination.txt` holds one fixed line of text, with no host
-  name, path or time. While the local index holds snapshots stored
-  there, a destination that answers a look-up of it with not found is
-  treated as not present: `snapshot create` refuses to write to it,
-  `prune`, `snapshot purge` and `remote nuke` fail, and `snapshot list`
-  and `snapshot remove` behave as for a destination that cannot be
-  listed. This keeps an unplugged volume's empty mount point from being
-  taken for a destination whose snapshots are all gone. Mount
-  the volume if it is removable; if the destination was emptied on
-  purpose, run `vaultik database delete` and back up again.
-  When the look-up fails for any reason other than not found, the check
-  is skipped and the command goes on. S3 refuses it on every run to
-  credentials that allow only PUT, so a host with such credentials does
-  not notice a destination emptied since its last backup, and its next
-  backup would leave out the data its local index records as already
-  stored. After the destination is emptied, run
-  `vaultik database delete` on such a host before it backs up again.
 * Blobs are two-level directory sharded using the first 4 hex chars of the blob hash
 * `db.zst.age` is a binary SQLite database (zstd compressed, age encrypted)
   containing all file metadata, chunk mappings, and relationships for the snapshot
@@ -678,11 +516,7 @@ format does and does not protect.
 1. List all snapshot manifests
 2. Build set of all referenced blob hashes
 3. List all blobs in storage
-4. Delete any blob not in the referenced set that is older than
+4. Delete any blob not in the referenced set
-   `prune_grace_period`
-5. Delete each directory under `metadata/` with no manifest whose objects
-   are all older than `prune_grace_period`, unless its snapshot is in the
-   local index
 
 ### chunking and deduplication
 
@@ -727,7 +561,6 @@ complete annotated example also lives in
 | `chunk_size` | `10MB` | Average chunk size for content-defined chunking |
 | `blob_size_limit` | `10GB` | Maximum blob size before splitting. Must be at least four times `chunk_size` (the largest chunk the chunker can emit), otherwise a single-chunk blob could exceed the limit. A backup needs free temporary space, because each blob is written whole to a temporary file before it is uploaded (up to about `blob_size_limit`; an rclone destination that cannot stream uploads needs about twice that) and the metadata export writes copies of the local index. Temporary files go to `$TMPDIR` (default `/tmp`); with `TMPDIR` unset, SQLite writes one of those copies to `/var/tmp` |
 | `compression_level` | `3` | zstd compression level (1-19) |
-| `prune_grace_period` | `24h` | How old a blob that no snapshot lists must be before `prune` deletes it, and how old every object in a directory under `metadata/` with no manifest must be before `prune` deletes that directory. A backup uploads its blobs and its `db.zst.age` before its manifest, so on a destination shared between hosts or users this must be longer than the longest backup run (see [locking](#locking)). It does not protect a blob a backup reuses from an earlier run that stopped before its manifest: that blob keeps the time of its first upload, so a prune can delete it. A duration such as `36h` or `90m`; `0s` deletes such blobs and directories at once |
 | `hostname` | system hostname | Hostname used in snapshot IDs |
 | `index_path` | platform data dir | Local SQLite index path |
 
@@ -851,10 +684,8 @@ the `NO_COLOR` environment variable is unset (https://no-color.org/).
   reports and tables (`version`, `info`, `remote info`, `snapshot
   verify`, `snapshot list`) but never the machine-consumed `config get`
   value or the `--json` documents, which a script depends on. The
-  confirmation prompts of `database delete`, `prune`, `snapshot purge`
+  `database delete` confirmation prompt is also written this way and
-  and `snapshot remove`, each with what it asks to delete, are also
+  always shown: it is an interactive exchange the operator must see.
-  written this way and always shown: they are an interactive exchange
-  the operator must see.
 
 `internal/ui` writes to stdout; it is the output the user asked for. The
 exceptions are the startup banner and the error a failed command ends

TODO.md

@@ -15,316 +15,13 @@ pre-1.0
 # Next Step
 
 The 1.0 work is complete on `next`: the scope settled on
-[issue #125](https://git.eeqj.de/sneak/vaultik/issues/125) has landed,
+[issue #125](https://git.eeqj.de/sneak/vaultik/issues/125) was the work
-and so has every fix from the defect hunt before the release candidate
+already planned for 1.0, and all of it has landed. The mechanism to cut
-([issue #288](https://git.eeqj.de/sneak/vaultik/issues/288)). What is
+the tag exists and is exercised; what is left is merging `next` to
-left is merging `next` to `main` and tagging the release, both the
+`main` and tagging, both the owner's.
-owner's; a `v*` tag runs the release build in
-`.gitea/workflows/release.yml`.
 
 # Completed Steps
 
-- 2026-10-15: Stopped `snapshot create --prune` pruning after a backup
-  in which a volume mounted below a configured path in an earlier
-  snapshot of the same name was not mounted
-  ([issue #395](https://git.eeqj.de/sneak/vaultik/issues/395)). Such a
-  prune could delete every snapshot still holding the volume's files.
-  Each snapshot now records in the local index the directories it found
-  on a different filesystem from their parent and found an entry in that
-  the backup does not exclude.
-
-- 2026-10-14: Stopped `snapshot create --prune` pruning after a backup
-  that found nothing in a configured path
-  ([issue #388](https://git.eeqj.de/sneak/vaultik/issues/388)), as in
-  the mount point of a volume that is not mounted. Such a prune could
-  delete every snapshot still holding that path's files. A configured
-  path that is a symlink whose target is gone, as one into such a
-  volume, now fails the backup, with or without `--prune`.
-
-- 2026-10-14: Stopped `snapshot create --prune` pruning after a backup
-  that skipped files it could not read
-  ([issue #382](https://git.eeqj.de/sneak/vaultik/issues/382)). Such a
-  prune could delete the only snapshot still holding those files.
-
-- 2026-10-14: Made `snapshot create --skip-errors` exit non-zero,
-  instead of 0, when it skips anything it cannot read
-  ([issue #310](https://git.eeqj.de/sneak/vaultik/issues/310)).
-
-- 2026-10-14: Kept the local index when `remote nuke` cannot list or
-  find the destination store
-  ([issue #292](https://git.eeqj.de/sneak/vaultik/issues/292)). Nuke
-  had cleared the local snapshot records anyway; it now fails before
-  removing anything.
-
-- 2026-10-14: Stopped counting directories and unchanged symlinks as
-  files to back up
-  ([issue #305](https://git.eeqj.de/sneak/vaultik/issues/305)).
-
-- 2026-10-14: Refused a backup destination that an unplugged volume
-  left empty, as the owner ruled
-  ([issue #239](https://git.eeqj.de/sneak/vaultik/issues/239)). Every
-  backup now writes `vaultik-destination.txt` at the destination root,
-  and while the local index holds snapshots stored there, a destination
-  without it is treated as not present.
-
-- 2026-10-14: Warned about restored ownership only when an entry's
-  owner or group differs from the recorded one
-  ([issue #316](https://git.eeqj.de/sneak/vaultik/issues/316)); a
-  restore by a non-root user had warned even when none did.
-
-- 2026-10-14: Made `snapshot list` report a changed destination instead
-  of advising `prune`, which refuses in that case
-  ([issue #317](https://git.eeqj.de/sneak/vaultik/issues/317)).
-
-- 2026-10-14: Counted a file as deleted by a backup only if the
-  previous snapshot of the same name listed it
-  ([issue #304](https://git.eeqj.de/sneak/vaultik/issues/304)); files
-  that snapshot did not list had been counted too.
-
-- 2026-10-14: Named each prefix once in restore, verify and purge
-  errors, some of which repeated it
-  ([issue #327](https://git.eeqj.de/sneak/vaultik/issues/327)). A deep
-  verify log line that named S3 whatever the destination now names
-  storage.
-
-- 2026-10-14: Refused credentials in a storage URL's endpoint or rclone
-  remote name, which were accepted and could then be printed
-  ([issue #322](https://git.eeqj.de/sneak/vaultik/issues/322)).
-
-- 2026-10-14: Ran `$EDITOR` through the shell in `config edit`, so a
-  value with arguments, such as `code --wait`, no longer fails
-  ([issue #315](https://git.eeqj.de/sneak/vaultik/issues/315)).
-
-- 2026-10-14: Made `snapshot remove` fail, instead of exiting 0, when
-  it cannot delete the metadata of a snapshot that is only on the
-  destination store
-  ([issue #340](https://git.eeqj.de/sneak/vaultik/issues/340)). The
-  README and the help now say when it prints the `vaultik prune`
-  follow-up.
-
-- 2026-10-14: Labelled the totals in the local index cleanup before
-  each backup as totals
-  ([issue #306](https://git.eeqj.de/sneak/vaultik/issues/306)). Each
-  was shown as `(N remain)`, which read as rows left to clean up.
-
-- 2026-10-13: Freed a cached blob once no file still to restore needs
-  it ([issue #324](https://git.eeqj.de/sneak/vaultik/issues/324)); one
-  also used by a file outside the selected paths had stayed in the
-  temporary cache until the restore ended.
-
-- 2026-10-13: Kept the whole startup error when it contains `): `
-  ([issue #320](https://git.eeqj.de/sneak/vaultik/issues/320)). Such
-  an error was cut at its last `): `, so the `blob_size_limit` one lost
-  the setting's name.
-
-- 2026-10-13: Silenced the status lines of `prune` and snapshot removal
-  under `--cron` and `--quiet`
-  ([issue #294](https://git.eeqj.de/sneak/vaultik/issues/294)).
-
-- 2026-10-13: Read the rclone config file that `RCLONE_CONFIG` names
-  ([issue #321](https://git.eeqj.de/sneak/vaultik/issues/321)); a
-  remote defined only there had been reported as not found.
-
-- 2026-10-13: Made `/**/` in an exclude pattern match zero directories,
-  as in gitignore
-  ([issue #338](https://git.eeqj.de/sneak/vaultik/issues/338));
-  `a/**/*.log` had missed `a/x.log`.
-
-- 2026-10-13: Made the `chunk_size` and `blob_size_limit` defaults and
-  the `chunk_size` minimum 1000-based, like the size parser and the
-  docs ([issue #313](https://git.eeqj.de/sneak/vaultik/issues/313)).
-
-- 2026-10-13: Kept a snapshot's remote metadata when `snapshot purge`
-  cannot remove it from the local index
-  ([issue #337](https://git.eeqj.de/sneak/vaultik/issues/337)); the
-  purge had deleted the metadata anyway and exited 0.
-
-- 2026-10-13: Made `snapshot restore` fail for a requested path that
-  matches nothing, which it had ignored
-  ([issue #309](https://git.eeqj.de/sneak/vaultik/issues/309)).
-
-- 2026-10-13: Made `remote nuke` delete every object under `metadata/`
-  and `blobs/`
-  ([issue #291](https://git.eeqj.de/sneak/vaultik/issues/291)); it had
-  left some, such as a stray `.DS_Store`, while reporting the store
-  empty.
-
-- 2026-10-13: Made `config set` create a list for an index under a
-  missing key
-  ([issue #308](https://git.eeqj.de/sneak/vaultik/issues/308)); it had
-  written a map, after which no command could load the config.
-
-- 2026-10-13: Listed a `file://` destination through a symlinked
-  `metadata/` or `blobs/`, which had listed as empty
-  ([issue #296](https://git.eeqj.de/sneak/vaultik/issues/296)). A link
-  to a missing target now fails the listing
-  ([issue #332](https://git.eeqj.de/sneak/vaultik/issues/332)).
-
-- 2026-10-13: Made `snapshot verify --deep --json` report its blob
-  counts ([issue #314](https://git.eeqj.de/sneak/vaultik/issues/314));
-  a failed run had reported 0 missing and 0 verified.
-
-- 2026-10-13: Limited and retried the module download in the Docker
-  build ([issue #351](https://git.eeqj.de/sneak/vaultik/issues/351)),
-  which had hung for as long as a stalled connection to the module
-  proxy lasted.
-
-- 2026-10-13: Recorded each snapshot's uncompressed size when its
-  backup runs
-  ([issue #360](https://git.eeqj.de/sneak/vaultik/issues/360)). A later
-  backup could change an older snapshot's UNCOMPRESSED SIZE in
-  `snapshot list`.
-
-- 2026-10-13: Stopped `snapshot restore --skip-errors --verify`
-  reporting a file that failed to restore again as a checksum failure
-  ([issue #323](https://git.eeqj.de/sneak/vaultik/issues/323)).
-
-- 2026-10-13: Recorded the stored size of a blob a backup finds already
-  stored, not the size of its local copy, which can differ, so
-  `snapshot verify` could fail on a good snapshot
-  ([issue #300](https://git.eeqj.de/sneak/vaultik/issues/300)).
-
-- 2026-10-13: Stopped the local index and the blob upload step ending
-  the process on a failed close of query results or a failed temp file
-  cleanup ([issue #345](https://git.eeqj.de/sneak/vaultik/issues/345));
-  both are now returned as errors.
-
-- 2026-10-13: Closed the snapshot database's storage reader too when
-  restore or deep verify is interrupted
-  ([issue #356](https://git.eeqj.de/sneak/vaultik/issues/356)).
-
-- 2026-10-13: Made `prune` and `remote nuke` fail when a delete on the
-  backup destination store fails
-  ([issue #290](https://git.eeqj.de/sneak/vaultik/issues/290)).
-
-- 2026-10-13: Made an S3 listing that the server cuts short an error
-  ([issue #297](https://git.eeqj.de/sneak/vaultik/issues/297)); `prune`
-  had taken it as complete and could delete blobs still in use.
-
-- 2026-10-13: Made shallow `snapshot verify` report a blob it could not
-  check apart from a missing one
-  ([issue #318](https://git.eeqj.de/sneak/vaultik/issues/318)); any
-  error checking a blob had counted as missing, its cause dropped.
-
-- 2026-10-13: Restored the other files when a file's chunk is in no
-  blob under `--skip-errors`
-  ([issue #326](https://git.eeqj.de/sneak/vaultik/issues/326)); that
-  file had stopped the restore before anything was restored.
-
-- 2026-10-13: Recorded each snapshot's new chunk size when its backup
-  runs ([issue #311](https://git.eeqj.de/sneak/vaultik/issues/311)).
-  `snapshot list` could show a NEW CHUNK SIZE of 0 B for a snapshot
-  whose change was a modified file.
-
-- 2026-10-13: Made a backup interrupted during a local index write exit
-  as interrupted
-  ([issue #301](https://git.eeqj.de/sneak/vaultik/issues/301)); it could
-  end with `FATAL: failed to rollback transaction` and exit 1 instead of
-  130.
-
-- 2026-10-13: Printed `snapshot list` and `snapshot purge` sizes like
-  every other command
-  ([issue #312](https://git.eeqj.de/sneak/vaultik/issues/312)). They,
-  and the `bytes` value in terminal log lines, were 1024-based but
-  labelled KB or MB, and now use 1000-based units.
-
-- 2026-10-13: Closed each blob's storage reader when restore or deep
-  verify is interrupted, which ends a stalled read unless it is stuck in
-  the kernel ([issue #325](https://git.eeqj.de/sneak/vaultik/issues/325)).
-
-- 2026-10-13: Made a mistyped subcommand under `snapshot`, `config`,
-  `remote`, `database` or `completion` an error
-  ([issue #319](https://git.eeqj.de/sneak/vaultik/issues/319)); each had
-  printed its help and exited 0.
-
-- 2026-10-13: Made an exclude pattern starting with `**/` match
-  directly under the snapshot path too, as in gitignore
-  ([issue #303](https://git.eeqj.de/sneak/vaultik/issues/303)).
-
-- 2026-10-13: Refused a relative `file://` storage URL and decoded its
-  percent-escapes
-  ([issue #299](https://git.eeqj.de/sneak/vaultik/issues/299)); a
-  relative path had moved with the working directory.
-
-- 2026-10-13: Removed the blob temp file when a backup stops part-way
-  ([issue #302](https://git.eeqj.de/sneak/vaultik/issues/302)); the
-  half-written blob had stayed in `$TMPDIR`.
-
-- 2026-10-13: Checked `--keep-newer-than` before a backup starts
-  ([issue #307](https://git.eeqj.de/sneak/vaultik/issues/307)); an
-  invalid value had been read only by the prune after the backup, so
-  retention never ran.
-
-- 2026-10-13: Stopped `remote info` counting a file under `blobs/` that
-  is not a blob as an orphaned blob
-  ([issue #295](https://git.eeqj.de/sneak/vaultik/issues/295)). A stray
-  file such as `.DS_Store` was reported as an orphaned blob and the
-  report advised running `prune`, which skips such a file and deleted
-  nothing. `remote info` now takes its blob list from the same listing
-  `prune` uses, in the table and in `--json`.
-
-- 2026-10-13: Made `snapshot remove` fail for a snapshot that does not
-  exist ([issue #293](https://git.eeqj.de/sneak/vaultik/issues/293)).
-  The command never checked the ID: it reported the snapshot removed
-  from the local database and from the destination store and exited 0,
-  under `--json`, `--dry-run` and `--local-only` too. An ID that names
-  no snapshot in the local index or on the destination store is now an
-  error; with `--local-only`, the snapshot must be in the local index.
-  The command now reports a removal from either side only when one
-  happened, and `remote_removed` is true only when metadata was deleted.
-
-- 2026-10-12: Bound the local index to the destination an `s3.*` config
-  names ([issue #298](https://git.eeqj.de/sneak/vaultik/issues/298)).
-  Only `storage_url` was checked, so after `s3.bucket` or `s3.prefix`
-  changed, the next backup treated every chunk as already stored,
-  uploaded nothing, and completed a snapshot that could not be restored.
-  Without `storage_url`, the local index is now bound to `s3.endpoint`,
-  `s3.bucket` and `s3.prefix`, and a change is refused as a changed
-  `storage_url` is.
-
-- 2026-10-12: Rejected a retention duration longer than about 292 years
-  ([issue #289](https://git.eeqj.de/sneak/vaultik/issues/289)). The
-  number given to `--older-than` or `--keep-newer-than` was multiplied
-  by the length of its unit with no limit, so from `293y`, `15251w`,
-  `3559mo` or `106752d`, or a sum of parts such as `200y200y`, the
-  result wrapped to a negative duration. The cutoff then lay in the
-  future, every snapshot of the name was deleted, the one just made
-  included, and the command exited 0. Such a duration is now rejected
-  as invalid and nothing is deleted.
-
-- 2026-10-08: Made a backup cancelled under `--skip-errors` stop at once
-  ([issue #286](https://git.eeqj.de/sneak/vaultik/issues/286)). After
-  Ctrl-C or SIGTERM, phase 2 treated the cancellation error from each
-  remaining file like an unreadable file: it opened the file, printed an
-  error line for it, counted it as failed and went on to the next one.
-  The run now stops at the first file after the cancellation, and no
-  file is counted as failed because of it.
-
-- 2026-10-08: Made `remote nuke` delete the `.partial` files that
-  uploads cut off part-way leave on the destination store
-  ([issue #281](https://git.eeqj.de/sneak/vaultik/issues/281)). The
-  file and rclone listings skip such a file, so the command left it in
-  place and still reported the store empty. It now removes them under
-  `metadata/` and `blobs/` as its last step.
-
-- 2026-10-08: Made a local index error while recording a directory or
-  symlink stop a backup under `--skip-errors`
-  ([issue #284](https://git.eeqj.de/sneak/vaultik/issues/284)). Phase 2
-  only records such an entry in the local index, since it has no data
-  to open or read, but an error doing so was skipped like an unreadable
-  file. The snapshot then completed without the entry, and a restore
-  did not recreate it. The error now stops the backup, as it does
-  without the flag.
-
-- 2026-10-08: Counted a file that a backup could not store as failed
-  ([issue #280](https://git.eeqj.de/sneak/vaultik/issues/280)). A file
-  that phase 1 counted and phase 2 could not open, because it was
-  unreadable under `--skip-errors` or removed in between, was reported
-  in the summary as unchanged with its bytes as backed up, and the
-  `snapshots` row's `file_count` and `total_size` included it. The
-  summary now counts it as failed, and its data total and the row leave
-  it out.
-
 - 2026-10-08: Made `remote info` report a snapshot's blob count and
   blob size as unknown when its manifest cannot be read
   ([issue #272](https://git.eeqj.de/sneak/vaultik/issues/272)). The
@@ -334,17 +31,6 @@ owner's; a `v*` tag runs the release build in
   manifest still shows 0, since the orphan figures count its blobs as
   orphaned.
 
-- 2026-10-08: Kept the progress line of a snapshot with more than one
-  path within 100%
-  ([issue #271](https://git.eeqj.de/sneak/vaultik/issues/271)). The
-  bytes and files processed counted every path, but the totals they
-  were divided by held only the current path's, so a second path
-  smaller than the first showed more than 100% and an ETA of `unknown`.
-  The totals now add up over the paths scanned so far. The rate behind
-  the ETA restarts when each path's scan phase ends, so that phase does
-  not lower the rate while the path is processed; until then the rate
-  is the previous path's.
-
 - 2026-10-08: Made a second `snapshot create` of one name succeed when
   it starts in the same second as the first
   ([issue #270](https://git.eeqj.de/sneak/vaultik/issues/270)). The

cmd/vaultik/dockermoddownload_test.go

@@ -1,45 +0,0 @@
-package main_test
-
-import (
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-// TestDockerfileBoundsEveryModuleDownload fails unless every
-// `go mod download` in the Dockerfile runs under a time limit, is tried
-// a fixed number of times, and then fails the build with a message that
-// names the module download (issue #351). Like the version tests, this
-// parses the Dockerfile; that a stalled download really is cut off and
-// retried was checked by hand.
-func TestDockerfileBoundsEveryModuleDownload(t *testing.T) {
-	t.Parallel()
-
-	var downloads []string
-
-	for _, instruction := range instructions(t, productDockerfile) {
-		if strings.Contains(instruction, "go mod download") {
-			downloads = append(downloads, instruction)
-		}
-	}
-
-	require.NotEmpty(t, downloads, "%s must download modules",
-		productDockerfile)
-
-	for _, download := range downloads {
-		assert.Contains(t, download, "timeout 300 go mod download",
-			"%s: a module download must have a time limit: %s",
-			productDockerfile, download)
-		assert.Contains(t, download, "for attempt in 1 2 3",
-			"%s: a module download must be retried: %s",
-			productDockerfile, download)
-		assert.Contains(t, download, "module download failed",
-			"%s: a module download that never succeeds must say so: %s",
-			productDockerfile, download)
-		assert.True(t, strings.HasSuffix(download, "exit 1"),
-			"%s: a module download that never succeeds must fail the"+
-				" build: %s", productDockerfile, download)
-	}
-}

config.example.yml

@@ -302,8 +302,7 @@ storage_url: "rclone://myremote/path/to/backups"
 
 # Average chunk size for content-defined chunking
 # Smaller chunks = better deduplication but more metadata
-# Minimum 1MB
+# Supports: 10MB, 5M, 1GB, 500KB, 64MiB, etc.
-# Supports: 10MB, 5M, 1GB, 64MiB, etc.
 # Default: 10MB
 #chunk_size: 10MB
 
@@ -328,20 +327,6 @@ storage_url: "rclone://myremote/path/to/backups"
 # Higher = better compression but slower
 # Default: 3
 compression_level: 5
-
-# How old a blob that no snapshot lists must be before prune deletes it, and
-# how old every object in a directory under metadata/ with no manifest must
-# be before prune deletes that directory
-# A backup uploads its blobs and its db.zst.age before its manifest, so on a
-# destination shared between hosts or users this must be longer than the
-# longest backup run
-# It does not protect a blob a backup reuses from an earlier run that stopped
-# before its manifest: that blob keeps the time of its first upload, so a
-# prune can delete it
-# Supports: 36h, 90m, etc.; 0s deletes such blobs and directories at once
-# Default: 24h
-#prune_grace_period: 24h
-
 # Hostname to use in backup metadata
 # Default: system hostname
 #hostname: myserver

docs/DATAMODEL.md

@@ -90,7 +90,7 @@ Stores information about packed, compressed, and encrypted blob files.
 - `created_ts` (INTEGER NOT NULL) - Creation timestamp
 - `finished_ts` (INTEGER) - Finalization timestamp (NULL if in progress)
 - `uncompressed_size` (INTEGER NOT NULL DEFAULT 0) - Total size of chunks before compression
-- `compressed_size` (INTEGER NOT NULL DEFAULT 0) - Size after compression and encryption. Once uploaded, the size of the object in storage: when the blob was already stored, under another compression level or other recipients, this can differ from the size of the local copy
+- `compressed_size` (INTEGER NOT NULL DEFAULT 0) - Size after compression and encryption
 - `uploaded_ts` (INTEGER) - Upload completion timestamp (NULL if not uploaded)
 
 **Purpose:** Tracks blob lifecycle from creation through upload. The UUID primary key allows immediate association of chunks with blobs.
@@ -119,10 +119,8 @@ Tracks backup snapshots.
 - `completed_at` (INTEGER) - Completion timestamp (NULL if in progress)
 - `file_count` (INTEGER) - Number of files in snapshot
 - `chunk_count` (INTEGER) - Number of chunks this snapshot stored that were not stored before
-- `new_chunk_size` (INTEGER) - Total size of those chunks before compression; `snapshot list` shows it as NEW CHUNK SIZE
 - `blob_count` (INTEGER) - Number of blobs this snapshot created
 - `total_size` (INTEGER) - Total size of all files
-- `uncompressed_chunk_size` (INTEGER) - Total size before compression of the distinct chunks the snapshot's files reference, recorded when its backup ran; `snapshot list` shows it as UNCOMPRESSED SIZE
 - `blob_size` (INTEGER) - Total compressed size of all referenced blobs
 - `blob_uncompressed_size` (INTEGER) - Total uncompressed size of all referenced blobs
 - `compression_ratio` (REAL) - Compression ratio achieved
@@ -153,17 +151,7 @@ Maps snapshots to the blobs they reference.
 
 **Purpose:** Tracks blob dependencies for snapshots and enables manifest generation.
 
-### 10. `snapshot_mount_points`
+### 10. `uploads`
-The directories at or below a configured path, the configured path itself included, that a snapshot's backup found an entry in and, once it had listed them, found on a different filesystem from their parent directory (a different device number), as a mount point is. An automount point whose volume cannot be mounted is not recorded, because the backup finds no entry in it.
-
-**Columns:**
-- `snapshot_id` (TEXT) - Snapshot ID (FK to snapshots.id)
-- `path` (TEXT) - Absolute path of the directory
-- PRIMARY KEY (`snapshot_id`, `path`)
-
-**Purpose:** Lets `snapshot create --prune` skip the prune when a backup does not find a mount point that an earlier snapshot of the same name found, as when the volume is not mounted.
-
-### 11. `uploads`
 Tracks blob upload metrics.
 
 **Columns:**
@@ -183,7 +171,6 @@ Tracks blob upload metrics.
    - `INSERT OR REPLACE INTO files` - Update file metadata
    - `SELECT * FROM files WHERE path = ?` - Check if file has changed
    - `INSERT INTO snapshot_files` - Add file to current snapshot
-   - `INSERT OR IGNORE INTO snapshot_mount_points` - Record each directory on a different filesystem from its parent that the walk found an entry in
 
 2. **Chunking** (for changed files)
    - `INSERT OR IGNORE INTO chunks` - Store new chunks
@@ -196,7 +183,7 @@ Tracks blob upload metrics.
    - `UPDATE blobs SET blob_hash = ?, finished_ts = ?` - Finalize blob after packing
 
 4. **Upload**
-   - `UPDATE blobs SET uploaded_ts = ?, compressed_size = ?` - Mark blob as uploaded, with the size of the object in storage (the upload is skipped when the blob is already stored)
+   - `UPDATE blobs SET uploaded_ts = ?` - Mark blob as uploaded
    - `INSERT INTO uploads` - Record upload metrics with snapshot_id
    - `INSERT INTO snapshot_blobs` - Associate blob with snapshot
 
@@ -239,12 +226,7 @@ The restore process doesn't use the local database. Instead:
 
 1. **Identify Unreferenced Blobs**
    - Query blobs not referenced by any remaining snapshot
-   - Delete from S3, once older than `prune_grace_period`, and from the local
+   - Delete from S3 and local database
-     database
-2. **Delete Metadata Directories With No Manifest**
-   - Delete each directory under `metadata/` that has no `manifest.json.zst`
-     and no local snapshot record, once every object in it is older than
-     `prune_grace_period`
 
 ### 6. Incomplete Snapshot Cleanup
 

docs/REPOSTRUCTURE.md

@@ -4,7 +4,7 @@ This document describes the structure and organization of data stored in the S3
 
 ## Overview
 
-Vaultik stores all backup data in an S3-compatible object store. The repository consists of two main components, plus a marker file:
+Vaultik stores all backup data in an S3-compatible object store. The repository consists of two main components:
 1. **Blobs** - The actual backup data (content-addressed, encrypted)
 2. **Metadata** - Snapshot information and manifests (partially encrypted)
 
@@ -12,7 +12,6 @@ Vaultik stores all backup data in an S3-compatible object store. The repository
 
 ```
 <bucket>/<prefix>/
-├── vaultik-destination.txt
 ├── blobs/
 │   └── <hash[0:2]>/
 │       └── <hash[2:4]>/
@@ -25,12 +24,6 @@ Vaultik stores all backup data in an S3-compatible object store. The repository
 
 The metadata subdirectory is named with the **remote key**, a one-way hash of the snapshot ID, not with the human-readable snapshot ID itself. See [Remote Key Derivation](#remote-key-derivation).
 
-## Marker File (`vaultik-destination.txt`)
-
-Every backup writes this file at the root before it uploads anything. It holds one fixed line of plain text and names no host, path or time. While the local index holds snapshots stored there, a destination that answers a look-up of the marker with not found is treated as not present: `snapshot create` refuses to write to it, and `prune`, `snapshot purge`, `snapshot remove`, `snapshot list` and `remote nuke` behave as for a destination that cannot be listed. An unplugged volume leaves an empty directory at its mount point, and without the marker that directory would read as a destination whose snapshots are all gone. `remote nuke` deletes the marker last.
-
-When the look-up of the marker fails for any reason other than not found, the check is skipped and the command goes on. S3 refuses it on every run to credentials that allow only PUT, so a host with such credentials does not notice a destination emptied since its last backup, and its next backup would leave out the data its local index records as already stored. After the destination is emptied, run `vaultik database delete` on such a host before it backs up again.
-
 ## Blobs Directory (`blobs/`)
 
 ### Structure
@@ -165,10 +158,10 @@ These are known, deliberate properties of the format and the tooling, recorded s
 ## Pruning Safety
 
 The prune operation is safe because:
-1. It keeps every blob listed in any snapshot's manifest and deletes only blobs that no manifest references. Under `metadata/` it deletes only a directory that has no `manifest.json.zst`, whose name is a remote key, and that no local snapshot record claims
+1. It keeps every blob listed in any snapshot's manifest and deletes only blobs that no manifest references
 2. Manifests are unencrypted and can be read without keys
 3. If any manifest cannot be downloaded or decoded, prune deletes nothing and exits with an error, rather than treating that snapshot's blobs as unreferenced
-4. It deletes an unreferenced blob only once the blob is older than `prune_grace_period` (default `24h`), and a directory under `metadata/` with no manifest only once every object in it is. A backup uploads its blobs and its `db.zst.age` before its manifest, so a prune running meanwhile, on this host or another sharing the destination, leaves them as long as no backup run takes longer than the grace period. The grace period does not protect a blob a backup reuses from an earlier run that stopped before its manifest: the backup skips the upload of a blob already on the destination, so that blob keeps the time of its first upload, and a prune before the backup's manifest is written can delete it; the new snapshot then cannot be restored. `remote nuke` has no such check
+4. Prune requires exclusive access to the destination: running it during a concurrent backup can race a snapshot whose manifest is not yet written, so do not prune while a backup is in progress
 
 ## Restoration Requirements
 

go.mod

@@ -22,7 +22,6 @@ require (
 	github.com/spf13/cobra v1.10.1
 	github.com/spf13/pflag v1.0.10
 	github.com/stretchr/testify v1.11.1
-	go.uber.org/dig v1.19.0
 	go.uber.org/fx v1.24.0
 	golang.org/x/sync v0.18.0
 	golang.org/x/sys v0.38.0
@@ -257,6 +256,7 @@ require (
 	go.opentelemetry.io/otel/metric v1.38.0 // indirect
 	go.opentelemetry.io/otel/trace v1.38.0 // indirect
 	go.shabbyrobe.org/gocovmerge v0.0.0-20230507111327-fa4f82cfbf4d // indirect
+	go.uber.org/dig v1.19.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
 	go.yaml.in/yaml/v2 v2.4.3 // indirect

internal/blob/packer.go

@@ -245,17 +245,6 @@ func (p *Packer) Flush(ctx context.Context) error {
 	return nil
 }
 
-// DiscardCurrentBlob closes and removes the temp file of the blob being
-// packed, if any, and drops that blob. A caller that stops before Flush
-// must call it, or the temp file is left behind. Thread-safe.
-func (p *Packer) DiscardCurrentBlob() {
-	p.mu.Lock()
-	defer p.mu.Unlock()
-
-	p.cleanupTempFile()
-	p.currentBlob = nil
-}
-
 // FinalizeBlob finalizes the current blob being assembled.
 // This compresses the accumulated chunks, encrypts the result, and computes
 // the content-addressed hash. The finalized blob is either passed to the

internal/cli/app.go

@@ -8,12 +8,12 @@ import (
 	"errors"
 	"fmt"
 	"path/filepath"
+	"strings"
 	"sync"
 	"time"
 
 	"github.com/adrg/xdg"
 	"github.com/spf13/cobra"
-	"go.uber.org/dig"
 	"go.uber.org/fx"
 	"sneak.berlin/go/vaultik/internal/config"
 	"sneak.berlin/go/vaultik/internal/database"
@@ -146,12 +146,16 @@ func (e *startupError) Error() string {
 //	could not build arguments for function "Y" (file:line): failed to build U:
 //	received non-nil error from function "Z" (file:line): <real error>
 //
-// Users care about the real error, not the DI plumbing. dig.RootCause,
+// Users care about the real error, not the DI plumbing. We strip everything
-// from the library fx is built on, unwraps those layers and returns the
+// up through the last "): " (which is always the close-paren of an fx
-// real error whole. Cutting the text at "): " instead would also cut a
+// function-location annotation followed by the wrapped error).
-// real error that contains it, such as the blob_size_limit one.
 func cleanStartupError(err error) error {
-	return &startupError{msg: dig.RootCause(err).Error()}
+	msg := err.Error()
+	if idx := strings.LastIndex(msg, "): "); idx >= 0 {
+		msg = msg[idx+3:]
+	}
+
+	return &startupError{msg: msg}
 }
 
 // RunApp starts the fx application, blocks until it is asked to stop, and

internal/cli/app_test.go

@@ -2,65 +2,58 @@ package cli //nolint:testpackage // needs access to unexported cleanStartupError
 
 import (
 	"errors"
-	"os"
 	"path/filepath"
 	"testing"
 
-	"go.uber.org/fx"
-	"sneak.berlin/go/vaultik/internal/config"
 	"sneak.berlin/go/vaultik/internal/pidlock"
 )
 
-// TestCleanStartupError starts a real fx app whose config has a
-// blob_size_limit below the minimum. fx puts annotations naming the
-// functions it was building in front of the config error; only those
-// may be removed, although the config error itself contains "): ".
 func TestCleanStartupError(t *testing.T) {
 	t.Parallel()
 
-	path := filepath.Join(t.TempDir(), "config.yml")
+	tests := []struct {
-
+		name string
-	err := os.WriteFile(path, []byte("snapshots:\n"+
+		in   string
-		"  test:\n"+
+		want string
-		"    paths: [/tmp/vaultik-test-source]\n"+
+	}{
-		"storage_url: file:///tmp/vaultik-test-storage\n"+
+		{
-		"chunk_size: 10MB\n"+
+			name: "real fx error chain",
-		"blob_size_limit: 30MB\n"), 0o600)
+			in: `could not build arguments for function ` +
-	if err != nil {
+				`"sneak.berlin/go/vaultik/internal/cli".newSnapshotCreateCommand.func1.1 ` +
-		t.Fatalf("write config: %v", err)
+				`(/Users/user/dev/vaultik/internal/cli/snapshot.go:71): ` +
+				`failed to build *vaultik.Vaultik: ` +
+				`could not build arguments for function ` +
+				`"sneak.berlin/go/vaultik/internal/vaultik".New ` +
+				`(/Users/user/dev/vaultik/internal/vaultik/vaultik.go:59): ` +
+				`failed to build storage.Storer: ` +
+				`received non-nil error from function ` +
+				`"sneak.berlin/go/vaultik/internal/storage".NewStorer ` +
+				`(/Users/user/dev/vaultik/internal/storage/module.go:23): ` +
+				`creating base path: mkdir /Volumes/BACKUPS: permission denied`,
+			want: `creating base path: mkdir /Volumes/BACKUPS: permission denied`,
+		},
+		{
+			name: "no fx wrapping",
+			in:   "plain error",
+			want: "plain error",
+		},
+		{
+			name: "single fx wrapping",
+			in:   `received non-nil error from function "foo" (file.go:1): underlying problem`,
+			want: "underlying problem",
+		},
 	}
 
-	app := fx.New(
+	for _, tt := range tests {
-		fx.NopLogger,
+		t.Run(tt.name, func(t *testing.T) {
-		fx.Supply(config.Path(path)),
+			t.Parallel()
-		config.Module,
-		fx.Invoke(func(*config.Config) {}),
-	)
 
-	err = app.Start(t.Context())
+			//nolint:err113 // test constructs errors from table input
-	if err == nil {
+			got := cleanStartupError(errors.New(tt.in)).Error()
-		t.Fatal("app started; want a blob_size_limit error")
+			if got != tt.want {
-	}
+				t.Errorf("got %q, want %q", got, tt.want)
-
+			}
-	want := "failed to load config: invalid config: blob_size_limit must " +
+		})
-		"be at least the largest chunk the chunker can emit (chunk_size " +
-		"times the FastCDC size spread): need at least 40000000 bytes"
-
-	got := cleanStartupError(err).Error()
-	if got != want {
-		t.Errorf("got %q, want %q", got, want)
-	}
-}
-
-// TestCleanStartupErrorNotFromFx checks that an error fx did not wrap is
-// shown unchanged.
-func TestCleanStartupErrorNotFromFx(t *testing.T) {
-	t.Parallel()
-
-	//nolint:err113 // a one-off error standing in for a startup failure
-	got := cleanStartupError(errors.New("plain error")).Error()
-	if got != "plain error" {
-		t.Errorf("got %q, want %q", got, "plain error")
 	}
 }
 

internal/cli/config.go

@@ -8,7 +8,6 @@ import (
 	"os/exec"
 	"path/filepath"
 	"reflect"
-	"slices"
 	"strconv"
 	"strings"
 	"unicode/utf8"
@@ -45,9 +44,6 @@ var (
 	errNeedNumericIndex = errors.New("key is a list; use a numeric index")
 	errIndexOutOfRange  = errors.New("index out of range")
 	errNotMapOrList     = errors.New("key is not a map or list")
-	errWouldNotLoad     = errors.New(
-		"vaultik would not load the config after this change, " +
-			"so the file was not changed")
 )
 
 const defaultConfigTemplate = `# vaultik configuration
@@ -224,7 +220,7 @@ storage_url: ""
 
 # Average chunk size for content-defined chunking (FastCDC).
 # Smaller = better deduplication but more metadata overhead.
-# Minimum 1MB. Accepts: 1MB, 10M, 64MiB, etc.
+# Accepts: 1MB, 10M, 64KB, etc.
 # Default: 10MB
 # chunk_size: 10MB
 
@@ -239,18 +235,6 @@ storage_url: ""
 # Default: 3
 # compression_level: 3
 
-# How old a blob that no snapshot lists must be before prune deletes it,
-# and how old every object in a directory under metadata/ with no manifest
-# must be before prune deletes that directory. A backup uploads its blobs
-# and its db.zst.age before its manifest, so on a destination shared
-# between hosts or users this must be longer than the longest backup run.
-# It does not protect a blob a backup reuses from an earlier run that
-# stopped before its manifest: that blob keeps the time of its first
-# upload, so a prune can delete it.
-# Accepts: 36h, 90m, etc. 0s deletes such blobs and directories at once.
-# Default: 24h
-# prune_grace_period: 24h
-
 # Hostname used in snapshot IDs. Default: system hostname.
 # hostname: myserver
 
@@ -267,12 +251,6 @@ func NewConfigCommand() *cobra.Command {
 		Use:   "config",
 		Short: "Manage the configuration file",
 		Long:  "Commands for creating, editing, and querying the vaultik config file.",
-		// cobra checks Args only on a command that has a Run: without
-		// one, a mistyped subcommand printed help and exited 0.
-		Args: cobra.NoArgs,
-		Run: func(cmd *cobra.Command, _ []string) {
-			_ = cmd.Help()
-		},
 	}
 
 	cmd.AddCommand(newConfigInitCommand())
@@ -345,15 +323,8 @@ func newConfigEditCommand() *cobra.Command {
 				editor = "vi"
 			}
 
-			// Run $EDITOR through the shell, as git does, so a value
-			// with arguments such as "code --wait" works. The path
-			// goes in as an argument ("$@"), not into the command
-			// text, so a path with spaces or quotes arrives whole.
-			// sh -c takes the word after the command as $0, which
-			// is why editor appears twice.
 			//nolint:gosec // G204: launching the operator's own $EDITOR is the point
-			ed := exec.CommandContext(cmd.Context(),
+			ed := exec.CommandContext(cmd.Context(), editor, path)
-				"sh", "-c", editor+` "$@"`, editor, path)
 			ed.Stdin = os.Stdin
 			ed.Stdout = os.Stdout
 			ed.Stderr = os.Stderr
@@ -414,17 +385,8 @@ func newConfigSetCommand() *cobra.Command {
 		Use:   "set <key> <value>",
 		Short: "Set a config value by dotted path (e.g. compression_level 5)",
 		Long: `Sets a scalar config value addressed by dotted YAML path and writes
-the file back, preserving comments and formatting. Missing keys along
+the file back, preserving comments and formatting. Intermediate maps
-the path are created: as a list when the next path element is a
+are created as needed.
-number, otherwise as a map.
-
-If the config loads, a change after which it would not, such as
-compression_level 99, is refused and the file is left unchanged. A
-config that does not load, such as the one config init writes before
-storage_url is set or one with a ${ENV:...} reference to a variable
-not set here, is checked one setting at a time: only a change after
-which the changed setting cannot be read, such as one giving it the
-wrong type, is refused.
 
 Examples:
   vaultik config set storage_url "file:///mnt/backups"
@@ -454,14 +416,7 @@ func writeConfigSet(out *ui.Writer, path, key, value string) error {
 		return err
 	}
 
-	oldData, err := marshalConfigYAML(root)
+	err = yamlPathSet(root, strings.Split(key, "."), value)
-	if err != nil {
-		return fmt.Errorf("marshaling config: %w", err)
-	}
-
-	keys := strings.Split(key, ".")
-
-	err = yamlPathSet(root, keys, value)
 	if err != nil {
 		return err
 	}
@@ -471,21 +426,6 @@ func writeConfigSet(out *ui.Writer, path, key, value string) error {
 		return fmt.Errorf("marshaling config: %w", err)
 	}
 
-	setting, err := yamlPathOnly(root, keys)
-	if err != nil {
-		return err
-	}
-
-	settingData, err := marshalConfigYAML(setting)
-	if err != nil {
-		return fmt.Errorf("marshaling config: %w", err)
-	}
-
-	err = checkConfigChange(oldData, data, settingData)
-	if err != nil {
-		return fmt.Errorf("%w: %w", errWouldNotLoad, err)
-	}
-
 	err = os.WriteFile(path, data, configFileMode)
 	if err != nil {
 		return fmt.Errorf("writing config file: %w", err)
@@ -507,58 +447,6 @@ func writeConfigSet(out *ui.Writer, path, key, value string) error {
 	return nil
 }
 
-// checkConfigChange returns the reason vaultik would not load newData, the
-// config after a change, if the change brings that failure in. If oldData,
-// the config before it, loads, the new one must load too. A config that
-// does not load, such as one still being filled in or one with a ${...}
-// reference that cannot be filled in here, is checked one setting at a
-// time: settingData, the changed setting on its own, must decode into the
-// config type.
-func checkConfigChange(oldData, newData, settingData []byte) error {
-	oldCfg, err := config.Parse(oldData)
-	if err == nil && oldCfg.Validate() == nil {
-		newCfg, err := config.Parse(newData)
-		if err != nil {
-			return err
-		}
-
-		return newCfg.Validate()
-	}
-
-	_, err = config.Parse(settingData)
-
-	return err
-}
-
-// yamlPathOnly returns a document holding only the value at the dotted key
-// path in root, inside the maps and lists that lead to it there.
-func yamlPathOnly(root *yaml.Node, keys []string) (*yaml.Node, error) {
-	node, err := yamlPathGet(root, keys)
-	if err != nil {
-		return nil, err
-	}
-
-	for i, key := range slices.Backward(keys) {
-		parent, err := yamlPathGet(root, keys[:i])
-		if err != nil {
-			return nil, err
-		}
-
-		if parent.Kind == yaml.SequenceNode {
-			node = &yaml.Node{
-				Kind: yaml.SequenceNode, Content: []*yaml.Node{node},
-			}
-		} else {
-			keyNode := &yaml.Node{Kind: yaml.ScalarNode, Value: key}
-			node = &yaml.Node{
-				Kind: yaml.MappingNode, Content: []*yaml.Node{keyNode, node},
-			}
-		}
-	}
-
-	return &yaml.Node{Kind: yaml.DocumentNode, Content: []*yaml.Node{node}}, nil
-}
-
 // marshalConfigYAML renders a config document tree with 2-space indentation,
 // matching defaultConfigTemplate. yaml.Marshal defaults to 4 spaces, which
 // would reindent the whole file on the first `config set` despite the promise
@@ -665,8 +553,8 @@ func yamlPathGet(root *yaml.Node, keys []string) (*yaml.Node, error) {
 	return node, nil
 }
 
-// yamlPathSet navigates a dotted key path, creating missing keys as needed,
+// yamlPathSet navigates a dotted key path, creating intermediate maps as
-// and sets the final key to the given scalar value. Numeric path
+// needed, and sets the final key to the given scalar value. Numeric path
 // components index into sequences; an index equal to the sequence length
 // appends a new element (e.g. "age_recipients.1" on a 1-element list).
 func yamlPathSet(root *yaml.Node, keys []string, value string) error {
@@ -679,12 +567,12 @@ func yamlPathSet(root *yaml.Node, keys []string, value string) error {
 		node = node.Content[0]
 	}
 
-	for i := range keys {
+	for i, key := range keys {
 		last := i == len(keys)-1
 
 		switch node.Kind {
 		case yaml.MappingNode:
-			node = yamlSetInMapping(node, keys, i, value, last)
+			node = yamlSetInMapping(node, key, value, last)
 		case yaml.SequenceNode:
 			next, err := yamlSetInSequence(node, keys, i, value, last)
 			if err != nil {
@@ -753,16 +641,14 @@ func yamlField(typ reflect.Type, key string) (reflect.StructField, bool) {
 	return reflect.StructField{}, false
 }
 
-// yamlSetInMapping resolves (creating if needed) the value node for the
+// yamlSetInMapping resolves (creating if needed) the value node for key
-// path element keys[i] within a mapping node, setting it to value when it
+// within a mapping node, setting it to value when it is the final path
-// is the final path element, and returns the node to descend into.
+// element, and returns the node to descend into.
-func yamlSetInMapping(
+func yamlSetInMapping(node *yaml.Node, key, value string, last bool) *yaml.Node {
-	node *yaml.Node, keys []string, i int, value string, last bool,
-) *yaml.Node {
 	var valueNode *yaml.Node
 
 	for j := 0; j+1 < len(node.Content); j += 2 {
-		if node.Content[j].Value == keys[i] {
+		if node.Content[j].Value == key {
 			valueNode = node.Content[j+1]
 
 			break
@@ -770,8 +656,13 @@ func yamlSetInMapping(
 	}
 
 	if valueNode == nil {
-		keyNode := &yaml.Node{Kind: yaml.ScalarNode, Value: keys[i]}
+		keyNode := &yaml.Node{Kind: yaml.ScalarNode, Value: key}
-		valueNode = newPathNode(keys, i, value)
+
+		valueNode = &yaml.Node{Kind: yaml.MappingNode}
+		if last {
+			valueNode = &yaml.Node{Kind: yaml.ScalarNode, Value: value}
+		}
+
 		node.Content = append(node.Content, keyNode, valueNode)
 	} else if last {
 		setScalar(valueNode, value)
@@ -799,7 +690,12 @@ func yamlSetInSequence(
 	}
 
 	if idx == len(node.Content) {
-		node.Content = append(node.Content, newPathNode(keys, i, value))
+		newNode := &yaml.Node{Kind: yaml.MappingNode}
+		if last {
+			newNode = &yaml.Node{Kind: yaml.ScalarNode, Value: value}
+		}
+
+		node.Content = append(node.Content, newNode)
 	} else if last {
 		setScalar(node.Content[idx], value)
 	}
@@ -807,22 +703,6 @@ func yamlSetInSequence(
 	return node.Content[idx], nil
 }
 
-// newPathNode returns the node to create for the missing path element
-// keys[i]: the value when it is the final path element, otherwise an empty
-// list when the next path element is a number and an empty map when not.
-func newPathNode(keys []string, i int, value string) *yaml.Node {
-	if i == len(keys)-1 {
-		return &yaml.Node{Kind: yaml.ScalarNode, Value: value}
-	}
-
-	_, err := strconv.Atoi(keys[i+1])
-	if err == nil {
-		return &yaml.Node{Kind: yaml.SequenceNode}
-	}
-
-	return &yaml.Node{Kind: yaml.MappingNode}
-}
-
 // setScalar overwrites a node in place with a plain scalar value.
 func setScalar(n *yaml.Node, value string) {
 	n.Kind = yaml.ScalarNode

internal/cli/config_test.go

@@ -58,17 +58,14 @@ func TestDefaultConfigTemplateParses(t *testing.T) {
 	}
 }
 
-// testRecipient is a valid age public key.
-const testRecipient = "age1278m9q7dp3chsh2dcy82qk27v047zywyvtxwnj4cvt0z65jw6a7q5dqhfj"
-
 // TestConfigSetRecipientOnFreshConfig follows the README quickstart: on the
 // file `config init` writes, `config set age_recipients.0` and
 // `config set storage_url` give a config that loads with that recipient.
-// Neither is refused, although the config does not load until both are set;
-// once it loads, a recipient that is not a valid key is.
 func TestConfigSetRecipientOnFreshConfig(t *testing.T) {
 	t.Parallel()
 
+	const recipient = "age1278m9q7dp3chsh2dcy82qk27v047zywyvtxwnj4cvt0z65jw6a7q5dqhfj"
+
 	path := filepath.Join(t.TempDir(), "config.yml")
 
 	err := os.WriteFile(path, []byte(defaultConfigTemplate), configFileMode)
@@ -78,7 +75,7 @@ func TestConfigSetRecipientOnFreshConfig(t *testing.T) {
 
 	out := ui.NewWithColor(&bytes.Buffer{}, false)
 
-	err = writeConfigSet(out, path, "age_recipients.0", testRecipient)
+	err = writeConfigSet(out, path, "age_recipients.0", recipient)
 	if err != nil {
 		t.Fatalf("config set age_recipients.0: %v", err)
 	}
@@ -93,211 +90,8 @@ func TestConfigSetRecipientOnFreshConfig(t *testing.T) {
 		t.Fatalf("config.Load: %v", err)
 	}
 
-	if len(cfg.AgeRecipients) != 1 || cfg.AgeRecipients[0] != testRecipient {
+	if len(cfg.AgeRecipients) != 1 || cfg.AgeRecipients[0] != recipient {
-		t.Errorf("age_recipients = %v, want [%s]", cfg.AgeRecipients, testRecipient)
+		t.Errorf("age_recipients = %v, want [%s]", cfg.AgeRecipients, recipient)
-	}
-
-	err = writeConfigSet(out, path, "age_recipients.0", "notakey")
-	if err == nil || !strings.Contains(err.Error(), "not a valid recipient") {
-		t.Errorf("config set age_recipients.0 notakey gives error %v, "+
-			"want one saying it is not a valid recipient", err)
-	}
-
-	_, err = config.Load(path)
-	if err != nil {
-		t.Errorf("config.Load after the refused change: %v", err)
-	}
-}
-
-// configWithoutRecipients loads, but has no age_recipients key and no
-// snapshot named work.
-const configWithoutRecipients = `storage_url: file:///mnt/backups
-snapshots:
-  home:
-    paths:
-      - "~"
-`
-
-// configWithUnsetReference loads only where VAULTIK_TEST_UNSET_SECRET is
-// set, as a backup job's environment might set it. No test sets it.
-const configWithUnsetReference = configWithoutRecipients + `s3:
-  secret_access_key: ${ENV:VAULTIK_TEST_UNSET_SECRET}
-`
-
-// configWithLevelReference returns configWithoutRecipients with a ${FILE:...}
-// reference on compression_level to a file holding 9, so that the config
-// loads once the reference is filled in.
-func configWithLevelReference(t *testing.T) string {
-	t.Helper()
-
-	levelPath := filepath.Join(t.TempDir(), "level")
-
-	err := os.WriteFile(levelPath, []byte("9"), configFileMode)
-	if err != nil {
-		t.Fatalf("write level: %v", err)
-	}
-
-	return configWithoutRecipients +
-		"compression_level: ${FILE:" + levelPath + "}\n"
-}
-
-// TestConfigSetIndexUnderMissingKey checks that a list index under a key
-// the file does not have creates a list, and that the result loads.
-func TestConfigSetIndexUnderMissingKey(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		key   string
-		value string
-		field func(cfg *config.Config) []string
-	}{
-		{"age_recipients.0", testRecipient,
-			func(cfg *config.Config) []string { return cfg.AgeRecipients }},
-		{"snapshots.work.paths.0", "/srv/work",
-			func(cfg *config.Config) []string { return cfg.Snapshots["work"].Paths }},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.key, func(t *testing.T) {
-			t.Parallel()
-
-			path := filepath.Join(t.TempDir(), "config.yml")
-
-			err := os.WriteFile(path, []byte(configWithoutRecipients), configFileMode)
-			if err != nil {
-				t.Fatalf("write config: %v", err)
-			}
-
-			err = writeConfigSet(ui.NewWithColor(&bytes.Buffer{}, false),
-				path, tt.key, tt.value)
-			if err != nil {
-				t.Fatalf("config set %s: %v", tt.key, err)
-			}
-
-			cfg, err := config.Load(path)
-			if err != nil {
-				t.Fatalf("config.Load: %v", err)
-			}
-
-			got := tt.field(cfg)
-			if len(got) != 1 || got[0] != tt.value {
-				t.Errorf("%s gives %v, want [%s]", tt.key, got, tt.value)
-			}
-		})
-	}
-}
-
-// TestConfigSetKeepsFileThatWouldNotLoad checks that config set refuses a
-// change after which the config would not load, with an error giving the
-// reason, and leaves the file as it was. On the file `config init` writes,
-// which does not load until storage_url is set, and on one that cannot be
-// read here, only a value of the wrong type is refused.
-func TestConfigSetKeepsFileThatWouldNotLoad(t *testing.T) {
-	t.Parallel()
-
-	levelReference := configWithLevelReference(t)
-
-	tests := []struct {
-		config string
-		key    string
-		value  string
-		reason string
-	}{
-		// Index 1 of the empty list the missing key gives.
-		{configWithoutRecipients, "age_recipients.1", testRecipient,
-			"index out of range"},
-		// A list set to a single value.
-		{configWithoutRecipients, "snapshots.home.paths", "/srv",
-			"into []string"},
-		{configWithoutRecipients, "chunk_size", "fast",
-			"invalid size format"},
-		// Values of the right type that fail validation.
-		{configWithoutRecipients, "compression_level", "99",
-			"compression_level must be between 1 and 19"},
-		{configWithoutRecipients, "chunk_size", "1KB",
-			"chunk_size must be at least 1MB"},
-		// With its reference filled in, the config loads.
-		{levelReference, "blob_size_limit", "1MB",
-			"blob_size_limit must be at least"},
-		// The type check on a config that does not load yet.
-		{defaultConfigTemplate, "snapshots.apps.paths", "/srv",
-			"into []string"},
-		// The type check on a config that cannot be read here.
-		{configWithUnsetReference, "snapshots.home.paths", "/x",
-			"cannot unmarshal !!str `/x`"},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.key+" "+tt.value, func(t *testing.T) {
-			t.Parallel()
-
-			path := filepath.Join(t.TempDir(), "config.yml")
-
-			err := os.WriteFile(path, []byte(tt.config), configFileMode)
-			if err != nil {
-				t.Fatalf("write config: %v", err)
-			}
-
-			err = writeConfigSet(ui.NewWithColor(&bytes.Buffer{}, false),
-				path, tt.key, tt.value)
-			if err == nil || !strings.Contains(err.Error(), tt.reason) {
-				t.Errorf("config set %s %s gives error %v, want one saying %q",
-					tt.key, tt.value, err, tt.reason)
-			}
-
-			data, err := os.ReadFile(path) //nolint:gosec // G304: test-controlled path
-			if err != nil {
-				t.Fatalf("read config: %v", err)
-			}
-
-			if string(data) != tt.config {
-				t.Errorf("config set %s changed the file to:\n%s",
-					tt.key, data)
-			}
-		})
-	}
-}
-
-// TestConfigSetRefusesOnlyItsOwnFailure checks that setting another key
-// works on a config with a ${...} reference on compression_level, which
-// loads because loading fills the reference in, on one whose
-// compression_level already fails to load, and on one with a reference
-// that cannot be filled in here.
-func TestConfigSetRefusesOnlyItsOwnFailure(t *testing.T) {
-	t.Parallel()
-
-	configs := map[string]string{
-		"reference":       configWithLevelReference(t),
-		"failing":         configWithoutRecipients + "compression_level: fast\n",
-		"unset reference": configWithUnsetReference,
-	}
-
-	for name, configYAML := range configs {
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			path := filepath.Join(t.TempDir(), "config.yml")
-
-			err := os.WriteFile(path, []byte(configYAML), configFileMode)
-			if err != nil {
-				t.Fatalf("write config: %v", err)
-			}
-
-			err = writeConfigSet(ui.NewWithColor(&bytes.Buffer{}, false),
-				path, "hostname", "myhost")
-			if err != nil {
-				t.Fatalf("config set hostname: %v", err)
-			}
-
-			data, err := os.ReadFile(path) //nolint:gosec // G304: test-controlled path
-			if err != nil {
-				t.Fatalf("read config: %v", err)
-			}
-
-			if !strings.Contains(string(data), "hostname: myhost") {
-				t.Errorf("config set hostname wrote:\n%s", data)
-			}
-		})
 	}
 }
 
@@ -647,30 +441,6 @@ func TestWriteConfigSetTightensMode(t *testing.T) {
 	}
 }
 
-// TestConfigEditEditorWithArgument checks that an $EDITOR carrying an
-// argument works and that a config path with a space reaches it whole.
-// The "editor" is cp with the replacement file as its argument, so the
-// config ends up with the replacement's content only if both arrived.
-func TestConfigEditEditorWithArgument(t *testing.T) {
-	dir := t.TempDir()
-	path := seedFile(t, dir, "my config.yml", "compression_level: 3\n")
-	edited := seedFile(t, dir, "edited.yml", "compression_level: 9\n")
-
-	setRootFlags(t, RootFlags{ConfigPath: path})
-	t.Setenv("EDITOR", "cp '"+edited+"'")
-
-	mustExecute(t, newConfigEditCommand())
-
-	data, err := os.ReadFile(path) //nolint:gosec // G304: test-controlled path
-	if err != nil {
-		t.Fatalf("reading config back: %v", err)
-	}
-
-	if string(data) != "compression_level: 9\n" {
-		t.Errorf("config after edit = %q, want the edited content", data)
-	}
-}
-
 func splitPath(s string) []string {
 	return strings.Split(s, ".")
 }

internal/cli/database.go

@@ -15,12 +15,6 @@ func NewDatabaseCommand() *cobra.Command {
 		Use:   "database",
 		Short: "Manage the local state database",
 		Long:  `Commands for managing the local SQLite state database.`,
-		// cobra checks Args only on a command that has a Run: without
-		// one, a mistyped subcommand printed help and exited 0.
-		Args: cobra.NoArgs,
-		Run: func(cmd *cobra.Command, _ []string) {
-			_ = cmd.Help()
-		},
 	}
 
 	cmd.AddCommand(

internal/cli/entry_prune_json_test.go

@@ -101,8 +101,7 @@ func TestEntryPruneJSONStdoutIsExactlyOneDocument(t *testing.T) {
 // writeHermeticPruneConfig builds a config over a temp directory with an
 // empty destination directory and, if seedStale is set, creates the
 // index database up front with one snapshot record that has no
-// counterpart on the destination store, and gives the destination the
+// counterpart on the destination store. Returns the config path.
-// marker a backup writes. Returns the config path.
 func writeHermeticPruneConfig(t *testing.T, seedStale bool) string {
 	t.Helper()
 
@@ -132,11 +131,6 @@ func writeHermeticPruneConfig(t *testing.T, seedStale bool) string {
 
 	if seedStale {
 		seedStaleSnapshotRecord(t, indexPath)
-
-		// While the local index holds a snapshot, prune fails on a
-		// destination that answers that it has no marker.
-		require.NoError(t, os.WriteFile(
-			filepath.Join(storeDir, "vaultik-destination.txt"), nil, 0o600))
 	}
 
 	return configPath

internal/cli/entry_prune_quiet_test.go

@@ -1,127 +0,0 @@
-package cli //nolint:testpackage // shares runEntry and the hermetic config helpers
-
-import (
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-// flagCron is used to build the argument vectors below.
-const flagCron = "--cron"
-
-// plantUnreferencedBlob writes a blob that no snapshot references to the
-// destination store at storeDir, dated long before any prune grace period,
-// so that a prune deletes it. Returns its path.
-func plantUnreferencedBlob(t *testing.T, storeDir string) string {
-	t.Helper()
-
-	hash := strings.Repeat("b", 64)
-	path := filepath.Join(storeDir, "blobs", hash[:2], hash[2:4], hash)
-
-	require.NoError(t, os.MkdirAll(filepath.Dir(path), 0o750))
-	require.NoError(t, os.WriteFile(path, []byte("unreferenced"), 0o600))
-
-	longAgo := time.Unix(0, 0)
-	require.NoError(t, os.Chtimes(path, longAgo, longAgo))
-
-	return path
-}
-
-// TestEntrySnapshotCreatePruneIsSilent checks that a successful
-// `snapshot create --prune` under --cron or --quiet prints nothing on
-// stdout or stderr, whether or not the prune finds a blob to delete.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntrySnapshotCreatePruneIsSilent(t *testing.T) {
-	for _, testCase := range []struct {
-		name      string
-		args      []string
-		plantBlob bool
-	}{
-		{
-			name: "cron, no blob to delete",
-			args: []string{cmdSnapshot, cmdCreate, flagCron, flagPrune},
-		},
-		{
-			name:      "cron, blob to delete",
-			args:      []string{cmdSnapshot, cmdCreate, flagCron, flagPrune},
-			plantBlob: true,
-		},
-		{
-			name: "cron with keep-newer-than",
-			args: []string{
-				cmdSnapshot, cmdCreate, flagCron, flagPrune,
-				flagKeepNewerThan, "4w",
-			},
-			plantBlob: true,
-		},
-		{
-			name:      "quiet",
-			args:      []string{flagQuiet, cmdSnapshot, cmdCreate, flagPrune},
-			plantBlob: true,
-		},
-	} {
-		t.Run(testCase.name, func(t *testing.T) {
-			configPath, storeDir := writeBackupConfig(t)
-
-			var blob string
-			if testCase.plantBlob {
-				blob = plantUnreferencedBlob(t, storeDir)
-			}
-
-			code, stdout, stderr := runEntry(t,
-				append([]string{flagConfig, configPath}, testCase.args...)...)
-
-			assert.Equal(t, 0, code)
-			assert.Empty(t, stdout)
-			assert.Empty(t, stderr)
-
-			if testCase.plantBlob {
-				assert.NoFileExists(t, blob, "the prune must delete the blob")
-			}
-		})
-	}
-}
-
-// TestEntryPruneQuietIsSilent checks that a successful `prune --force`
-// under --quiet prints nothing on stdout or stderr, both when there is
-// nothing to remove and when it removes a stale local snapshot record
-// and an unreferenced blob.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntryPruneQuietIsSilent(t *testing.T) {
-	for _, testCase := range []struct {
-		name               string
-		staleRecordAndBlob bool
-	}{
-		{name: "nothing to remove"},
-		{name: "stale record and blob to remove", staleRecordAndBlob: true},
-	} {
-		t.Run(testCase.name, func(t *testing.T) {
-			configPath := writeHermeticPruneConfig(t, testCase.staleRecordAndBlob)
-
-			var blob string
-			if testCase.staleRecordAndBlob {
-				// writeHermeticPruneConfig puts the store beside the config.
-				blob = plantUnreferencedBlob(t,
-					filepath.Join(filepath.Dir(configPath), "store"))
-			}
-
-			code, stdout, stderr := runEntry(t,
-				flagConfig, configPath, flagQuiet, cmdPrune, flagForce)
-
-			assert.Equal(t, 0, code)
-			assert.Empty(t, stdout)
-			assert.Empty(t, stderr)
-
-			if testCase.staleRecordAndBlob {
-				assert.NoFileExists(t, blob, "the prune must delete the blob")
-			}
-		})
-	}
-}

internal/cli/entry_snapshot_create_prune_test.go

@@ -1,185 +0,0 @@
-package cli //nolint:testpackage // shares runEntry and the hermetic config helpers
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/database"
-)
-
-// Flags of `snapshot create` used to build argument vectors below.
-const (
-	flagPrune         = "--prune"
-	flagKeepNewerThan = "--keep-newer-than"
-)
-
-// TestEntrySnapshotCreateRejectsKeepNewerThanBeforeBackup checks that a
-// --keep-newer-than the post-backup prune could not use stops `snapshot
-// create` before the backup: the command fails and the destination
-// store stays empty. It used to be read only by the prune, after the
-// snapshot was uploaded, and without --prune it was ignored.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntrySnapshotCreateRejectsKeepNewerThanBeforeBackup(t *testing.T) {
-	for _, testCase := range []struct {
-		name string
-		args []string
-	}{
-		{
-			name: "decimal in a day count",
-			args: []string{flagPrune, flagKeepNewerThan, "1.5d"},
-		},
-		{
-			name: "unknown unit",
-			args: []string{flagPrune, flagKeepNewerThan, "4x"},
-		},
-		{
-			name: "without --prune",
-			args: []string{flagKeepNewerThan, "4w"},
-		},
-	} {
-		t.Run(testCase.name, func(t *testing.T) {
-			configPath, storeDir := writeBackupConfig(t)
-
-			code, _, _ := runEntry(t, append(
-				[]string{flagConfig, configPath, cmdSnapshot, cmdCreate},
-				testCase.args...)...)
-
-			assert.Equal(t, 1, code)
-
-			stored, err := os.ReadDir(storeDir)
-			require.NoError(t, err)
-			assert.Empty(t, stored, "nothing may be uploaded")
-		})
-	}
-}
-
-// TestEntrySnapshotCreateReportsPostBackupPruneFailure makes the
-// post-backup prune fail after a good backup, by planting a manifest
-// that cannot be decoded, and checks that the failure is reported as the
-// prune's and not as a failed snapshot creation.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntrySnapshotCreateReportsPostBackupPruneFailure(t *testing.T) {
-	configPath, storeDir := writeBackupConfig(t)
-
-	// A remote key is 64 lowercase hex characters. The prune reads every
-	// manifest on the store and fails on one it cannot decode.
-	plantedDir := filepath.Join(storeDir, "metadata", strings.Repeat("a", 64))
-	require.NoError(t, os.MkdirAll(plantedDir, 0o750))
-	require.NoError(t, os.WriteFile(
-		filepath.Join(plantedDir, "manifest.json.zst"),
-		[]byte("not a valid manifest"), 0o600))
-
-	code, _, stderr := runEntry(t,
-		flagConfig, configPath, cmdSnapshot, cmdCreate, flagPrune)
-
-	assert.Equal(t, 1, code)
-	assert.Contains(t, stderr, "Backup completed, but post-backup prune failed")
-	assert.NotContains(t, stderr, "Snapshot creation failed")
-
-	snapshots, err := os.ReadDir(filepath.Join(storeDir, "metadata"))
-	require.NoError(t, err)
-	assert.Len(t, snapshots, 2,
-		"the new snapshot is on the store beside the planted one")
-}
-
-// TestEntrySnapshotCreatePruneExitsNonZeroWhenSourceIsEmpty backs up,
-// empties the source directory, as a volume that is not mounted leaves
-// its mount point, and runs `snapshot create --prune`. The command exits
-// non-zero and reports the backup as completed, not as a failed snapshot
-// creation. See https://git.eeqj.de/sneak/vaultik/issues/388.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntrySnapshotCreatePruneExitsNonZeroWhenSourceIsEmpty(t *testing.T) {
-	configPath, storeDir := writeBackupConfig(t)
-
-	code, _, _ := runEntry(t, flagConfig, configPath, cmdSnapshot, cmdCreate)
-	require.Equal(t, 0, code)
-
-	// writeBackupConfig puts the source directory beside the config file.
-	require.NoError(t, os.Remove(
-		filepath.Join(filepath.Dir(configPath), "source", "file.txt")))
-
-	code, _, stderr := runEntry(t,
-		flagConfig, configPath, cmdSnapshot, cmdCreate, flagPrune)
-
-	assert.Equal(t, 1, code)
-	assert.Contains(t, stderr,
-		"Backup completed, but 1 source path(s) were empty")
-	assert.NotContains(t, stderr, "Snapshot creation failed")
-
-	snapshots, err := os.ReadDir(filepath.Join(storeDir, "metadata"))
-	require.NoError(t, err)
-	assert.Len(t, snapshots, 2, "the older snapshot is kept")
-}
-
-// TestEntrySnapshotCreatePruneExitsNonZeroWhenMountPointIsMissing backs
-// up, records in the local index that this backup found the source
-// directory as a mount point, and runs `snapshot create --prune`, which
-// does not find it as one. The command exits non-zero, reports the
-// backup as completed, not as a failed snapshot creation, and keeps the
-// older snapshot. See https://git.eeqj.de/sneak/vaultik/issues/395.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntrySnapshotCreatePruneExitsNonZeroWhenMountPointIsMissing(
-	t *testing.T,
-) {
-	configPath, storeDir := writeBackupConfig(t)
-
-	code, _, _ := runEntry(t, flagConfig, configPath, cmdSnapshot, cmdCreate)
-	require.Equal(t, 0, code)
-
-	// writeBackupConfig puts the source directory and the local index
-	// beside the config file.
-	dir := filepath.Dir(configPath)
-	ctx := context.Background()
-
-	db, err := database.New(ctx, filepath.Join(dir, "index.sqlite"))
-	require.NoError(t, err)
-
-	repos := database.NewRepositories(db)
-
-	backedUp, err := repos.Snapshots.GetOnlySnapshot(ctx)
-	require.NoError(t, err)
-	require.NoError(t, repos.Snapshots.AddMountPoint(ctx, nil,
-		backedUp.ID.String(), filepath.Join(dir, "source")))
-	require.NoError(t, db.Close())
-
-	code, _, stderr := runEntry(t,
-		flagConfig, configPath, cmdSnapshot, cmdCreate, flagPrune)
-
-	assert.Equal(t, 1, code)
-	assert.Contains(t, stderr, "Backup completed, but 1 mount point(s) "+
-		"an earlier snapshot recorded were not found")
-	assert.NotContains(t, stderr, "Snapshot creation failed")
-
-	snapshots, err := os.ReadDir(filepath.Join(storeDir, "metadata"))
-	require.NoError(t, err)
-	assert.Len(t, snapshots, 2, "the older snapshot is kept")
-}
-
-// writeBackupConfig builds a hermetic config with one small file in its
-// source directory and an empty destination store directory. Returns the
-// config path and the store directory.
-func writeBackupConfig(t *testing.T) (string, string) {
-	t.Helper()
-
-	configPath := writeHermeticPruneConfig(t, false)
-
-	// writeHermeticPruneConfig puts the source and store directories
-	// beside the config file.
-	dir := filepath.Dir(configPath)
-	sourceDir := filepath.Join(dir, "source")
-
-	require.NoError(t, os.Mkdir(sourceDir, 0o750))
-	require.NoError(t, os.WriteFile(
-		filepath.Join(sourceDir, "file.txt"), []byte("hello"), 0o600))
-
-	return configPath, filepath.Join(dir, "store")
-}

internal/cli/entry_snapshot_create_skip_errors_test.go

@@ -1,30 +0,0 @@
-package cli //nolint:testpackage // shares runEntry and the hermetic config helpers
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-// TestEntrySnapshotCreateSkipErrorsExitsNonZeroWhenItSkips backs up,
-// under --skip-errors, a source directory that does not exist, which the
-// walk skips. The command exits non-zero and reports the backup as
-// completed, not as a failed snapshot creation. See
-// https://git.eeqj.de/sneak/vaultik/issues/310.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntrySnapshotCreateSkipErrorsExitsNonZeroWhenItSkips(t *testing.T) {
-	// writeBackupConfig would create the source directory.
-	configPath := writeHermeticPruneConfig(t, false)
-
-	code, stdout, stderr := runEntry(t,
-		flagConfig, configPath, "--skip-errors", cmdSnapshot, cmdCreate)
-
-	assert.Equal(t, 1, code)
-	assert.Contains(t, stdout,
-		"Files: 1 examined, 0 backed up, 0 unchanged, 1 failed.")
-	assert.NotContains(t, stdout, "Finished successfully.")
-	assert.Contains(t, stderr,
-		"Backup completed, but 1 file(s) could not be read")
-	assert.NotContains(t, stderr, "Snapshot creation failed")
-}

internal/cli/entry_snapshot_purge_test.go

@@ -1,75 +0,0 @@
-package cli //nolint:testpackage // shares runEntry and the hermetic config helpers
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/database"
-	"sneak.berlin/go/vaultik/internal/snapshot"
-)
-
-// Words and flags of `snapshot purge` used to build argument vectors
-// below.
-const (
-	cmdPurge      = "purge"
-	flagOlderThan = "--older-than"
-	flagForce     = "--force"
-)
-
-// TestEntrySnapshotPurgeKeepsMetadataWhenLocalIndexDeleteFails makes
-// the local index refuse to delete an old snapshot and checks that
-// `snapshot purge` exits non-zero and leaves that snapshot's metadata on
-// the destination store. It used to log the error, delete the metadata
-// and exit 0.
-//
-// `snapshot create --prune` runs the same purge, but cannot be driven
-// this way: the refusal also breaks the backup's metadata export, which
-// deletes the other snapshots from its copy of the local index.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
-func TestEntrySnapshotPurgeKeepsMetadataWhenLocalIndexDeleteFails(t *testing.T) {
-	configPath := writeHermeticPruneConfig(t, false)
-	dir := filepath.Dir(configPath)
-	indexPath := filepath.Join(dir, "index.sqlite")
-
-	// seedStaleSnapshotRecord writes an old snapshot to the local index
-	// only; the manifest planted here puts it on the destination store
-	// too, so the purge selects it rather than dropping it as stale.
-	seedStaleSnapshotRecord(t, indexPath)
-
-	// While the local index holds a snapshot, purge fails on a
-	// destination that answers that it has no marker.
-	require.NoError(t, os.WriteFile(
-		filepath.Join(dir, "store", "vaultik-destination.txt"), nil, 0o600))
-
-	manifestDir := filepath.Join(dir, "store", "metadata",
-		snapshot.RemoteSnapshotKey(stalePruneSnapshotID))
-	require.NoError(t, os.MkdirAll(manifestDir, 0o750))
-
-	manifestPath := filepath.Join(manifestDir, "manifest.json.zst")
-	require.NoError(t, os.WriteFile(manifestPath, []byte("stub"), 0o600))
-
-	ctx := context.Background()
-
-	db, err := database.New(ctx, indexPath)
-	require.NoError(t, err)
-
-	_, err = db.Conn().ExecContext(ctx, `
-		CREATE TRIGGER refuse_snapshot_delete BEFORE DELETE ON snapshots
-		BEGIN SELECT RAISE(ABORT, 'simulated index error'); END`)
-	require.NoError(t, err)
-	require.NoError(t, db.Close())
-
-	code, _, stderr := runEntry(t, flagConfig, configPath,
-		cmdSnapshot, cmdPurge, flagOlderThan, "30d", flagForce)
-
-	assert.Equal(t, 1, code)
-	assert.Contains(t, stderr, "simulated index error",
-		"the purge must fail at the local-index delete")
-	assert.FileExists(t, manifestPath,
-		"the snapshot is still in the local index, so its metadata must stay")
-}

internal/cli/entry_unknown_subcommand_test.go

@@ -1,43 +0,0 @@
-package cli //nolint:testpackage // shares runEntry and the command-word constants
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-// TestEntryGroupRejectsUnknownSubcommand runs each group command with a
-// mistyped subcommand, as a crontab line might carry one. It must fail
-// with exit 1 and name the word, as `vaultik bogus` does at the top
-// level, instead of printing the group's help and exiting 0 having done
-// nothing. The group name alone still prints its help.
-//
-//nolint:paralleltest // replaces os.Args, os.Stdout and os.Stderr
-func TestEntryGroupRejectsUnknownSubcommand(t *testing.T) {
-	for _, testCase := range []struct {
-		group    string
-		mistyped string
-	}{
-		{group: cmdSnapshot, mistyped: "craete"},
-		{group: "config", mistyped: "inti"},
-		{group: cmdRemote, mistyped: "ifno"},
-		{group: "database", mistyped: "delte"},
-		{group: "completion", mistyped: "nosuchshell"},
-	} {
-		t.Run(testCase.group, func(t *testing.T) {
-			code, stdout, stderr := runEntry(t,
-				testCase.group, testCase.mistyped)
-
-			assert.Equal(t, 1, code)
-			assert.Empty(t, stdout)
-			assert.Contains(t, stderr,
-				`unknown command "`+testCase.mistyped+`"`)
-
-			code, stdout, _ = runEntry(t, testCase.group)
-
-			assert.Equal(t, 0, code)
-			assert.Contains(t, stdout,
-				programName+" "+testCase.group+" [command]")
-		})
-	}
-}

internal/cli/prune.go

@@ -13,24 +13,14 @@ func NewPruneCommand() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "prune",
 		Short: "Tidy local database and remote storage",
-		Long: `Removes orphaned data from the local index database, and
+		Long: `Removes orphaned data from both the local index database and
-unreferenced blobs and directories under metadata/ with no manifest
+unreferenced blobs from the backup destination store.
-from the backup destination store.
 
 Local cleanup drops incomplete snapshots and any files, chunks, or
 blobs no longer referenced by a completed snapshot. Remote cleanup
 scans every snapshot manifest in the destination store, builds the
 set of still-referenced blob hashes, and deletes any blob not in that
-set that is older than prune_grace_period (default 24h). A newer one
+set.
-is kept: it may belong to a backup still running, on this host or
-another sharing the destination store, that has not yet uploaded its
-manifest. The grace period does not protect a blob such a backup
-reuses from an earlier run that stopped before its manifest: that
-blob keeps the time of its first upload, so it can be deleted.
-Remote cleanup also deletes each directory under metadata/ with no
-manifest, as a backup that stopped before its manifest leaves, once
-all its objects are older than prune_grace_period and its snapshot is
-not in the local index.
 
 Snapshot create --prune runs the same cleanup automatically; this
 command is the manual entry point for the same work (e.g. after a

internal/cli/remote.go

@@ -18,12 +18,6 @@ func NewRemoteCommand() *cobra.Command {
 		Use:   "remote",
 		Short: "Remote storage management commands",
 		Long:  "Commands for inspecting and managing remote storage",
-		// cobra checks Args only on a command that has a Run: without
-		// one, a mistyped subcommand printed help and exited 0.
-		Args: cobra.NoArgs,
-		Run: func(cmd *cobra.Command, _ []string) {
-			_ = cmd.Help()
-		},
 	}
 
 	// Add subcommands

internal/cli/root.go

@@ -74,21 +74,6 @@ on the source system.`,
 		NewDatabaseCommand(),
 	)
 
-	// cobra adds the completion command only when Execute runs, and with
-	// no Run, so it skipped its own cobra.NoArgs and a mistyped shell name
-	// printed help and exited 0. Adding it here lets it have a Run. Its
-	// scripts go to os.Stdout as it is now: a later SetOut does not
-	// redirect them.
-	cmd.InitDefaultCompletionCmd()
-
-	for _, sub := range cmd.Commands() {
-		if sub.Name() == "completion" {
-			sub.Run = func(completion *cobra.Command, _ []string) {
-				_ = completion.Help()
-			}
-		}
-	}
-
 	return cmd
 }
 

internal/cli/snapshot.go

@@ -41,12 +41,6 @@ func NewSnapshotCommand() *cobra.Command {
 		Use:   "snapshot",
 		Short: "Snapshot management commands",
 		Long:  "Commands for creating, listing, and managing snapshots",
-		// cobra checks Args only on a command that has a Run: without
-		// one, a mistyped subcommand printed help and exited 0.
-		Args: cobra.NoArgs,
-		Run: func(cmd *cobra.Command, _ []string) {
-			_ = cmd.Help()
-		},
 	}
 
 	// Add subcommands
@@ -77,11 +71,6 @@ otherwise from the platform config directory (~/.config/vaultik/config.yml
 on Linux), then /etc/vaultik/config.yml.`,
 		Args: cobra.ArbitraryArgs,
 		RunE: func(cmd *cobra.Command, args []string) error {
-			err := opts.Validate()
-			if err != nil {
-				return err
-			}
-
 			// Pass snapshot names from args
 			opts.Snapshots = args
 			// --skip-errors is a global flag on the root command.
@@ -108,22 +97,6 @@ on Linux), then /etc/vaultik/config.yml.`,
 			}, func(v *vaultik.Vaultik) error {
 				return v.CreateSnapshot(opts)
 			}, func(err error) {
-				if errors.Is(err, vaultik.ErrPostBackupPruneFailed) {
-					log.Error("Post-backup prune failed", "error", err)
-					ReportErrorf("Backup completed, but %v", err)
-
-					return
-				}
-
-				if errors.Is(err, vaultik.ErrFilesUnreadable) ||
-					errors.Is(err, vaultik.ErrSourcePathEmpty) ||
-					errors.Is(err, vaultik.ErrVolumeNotMounted) {
-					log.Error("Backup completed with an error", "error", err)
-					ReportErrorf("Backup completed, but %v", err)
-
-					return
-				}
-
 				log.Error("Snapshot creation failed", "error", err)
 				ReportErrorf("Snapshot creation failed: %v", err)
 			})
@@ -133,13 +106,8 @@ on Linux), then /etc/vaultik/config.yml.`,
 	cmd.Flags().BoolVar(&opts.Cron, "cron", false,
 		"Run in cron mode (silent unless warning or error)")
 	cmd.Flags().BoolVar(&opts.Prune, "prune", false,
-		"After backup, drop older snapshots of the same name, remove "+
+		"After backup, drop older snapshots of the same name and remove "+
-			"orphaned blobs older than prune_grace_period, and delete each "+
+			"orphaned blobs")
-			"directory under metadata/ with no manifest once all its "+
-			"objects are older than prune_grace_period and its snapshot is "+
-			"not in the local index (not after a backup that skipped "+
-			"unreadable files, found a configured path empty, or did not "+
-			"find a mount point an earlier snapshot found)")
 	cmd.Flags().StringVar(&opts.KeepNewerThan, "keep-newer-than", "",
 		"With --prune: keep snapshots newer than this duration "+
 			"(e.g. 30d, 4w, 6mo, 1y; m is minutes, mo is months) "+
@@ -284,23 +252,16 @@ By default, this removes the snapshot from the local index database and
 strips the snapshot's metadata from the backup destination store. Blobs
 are NOT touched: deleting them requires reading every remaining remote
 manifest (the destination store may hold snapshots this host doesn't
-know about), which is what 'vaultik prune' does. The command prints the
+know about), which is what 'vaultik prune' does. On success the command
-'vaultik prune' invocation to run as a follow-up only when it removed the
+prints the exact 'vaultik prune' invocation to run as a follow-up.
-snapshot's metadata from the destination store, and never under --json.
-
-An ID that names no snapshot in the local index or on the destination
-store is an error.
 
 Use --local-only to skip the remote half (e.g. when you want to forget a
-snapshot locally without touching the destination store); the snapshot
+snapshot locally without touching the destination store).
-must then be in the local index.
 
-If removing the snapshot's metadata from the destination store fails (for
+If the remote is unreachable, the local-database removal still completes
-example because the remote is unreachable), the local-database removal
+and a warning is emitted; run 'vaultik snapshot remove <snapshot-id>' again
-still completes and a warning is emitted; run 'vaultik snapshot remove
+once the destination store is reachable to remove the snapshot's metadata
-<snapshot-id>' again once the destination store is reachable to remove
+from it ('vaultik prune' does not).
-the snapshot's metadata from it ('vaultik prune' does not). For a
-snapshot that is only on the destination store, that failure is an error.
 
 To wipe the entire destination store and start over, use 'vaultik remote
 nuke --force' — it is the single supported entry point for that.`,

internal/cli/snapshot_restore.go

@@ -30,8 +30,6 @@ This command will restore files from the specified snapshot to the
 target directory.
 If no paths are specified, all files are restored.
 If paths are specified, only matching files/directories are restored.
-A path that matches nothing in the snapshot is named in a warning, and
-the command exits non-zero after restoring the paths that match.
 
 The snapshot may be named by its ID or, when restoring on a host with no
 local index, by the remote key that 'snapshot list' prints for a

internal/config/config.go

@@ -4,14 +4,12 @@
 package config
 
 import (
-	"bytes"
 	"errors"
 	"fmt"
 	"os"
 	"path/filepath"
 	"sort"
 	"strings"
-	"time"
 
 	"filippo.io/age"
 	"git.eeqj.de/sneak/smartconfig"
@@ -31,16 +29,13 @@ const appName = "vaultik"
 //nolint:gosec // G101: marker for detecting a pasted secret key, not a credential
 const secretKeyPrefix = "AGE-SECRET-KEY-"
 
-// Defaults and validation bounds for tunable settings. MB and GB are
+// Defaults and validation bounds for tunable settings.
-// 1000-based, as the size parser reads them; the S3 part sizes are S3's own
-// limits, which are 1024-based (MiB, GiB).
 const (
-	defaultBlobSizeLimit    = Size(10 * 1000 * 1000 * 1000) // 10GB
+	defaultBlobSizeLimit    = Size(10 * 1024 * 1024 * 1024) // 10GB
-	defaultChunkSize        = Size(10 * 1000 * 1000)        // 10MB
+	defaultChunkSize        = Size(10 * 1024 * 1024)        // 10MB
 	defaultS3PartSize       = Size(5 * 1024 * 1024)         // 5MiB
 	defaultCompressionLevel = 3
-	defaultPruneGracePeriod = 24 * time.Hour
+	minChunkSize            = 1024 * 1024 // 1MB
-	minChunkSize            = 1000 * 1000 // 1MB
 	minCompressionLevel     = 1
 	maxCompressionLevel     = 19
 	// S3 accepts a multipart upload part from 5MiB to 5GiB.
@@ -66,11 +61,6 @@ var (
 	errBadS3PartSize    = errors.New("s3.part_size must be between 5MiB and 5GiB")
 	errBadStorageScheme = errors.New(
 		"storage_url must start with s3://, file://, or rclone://")
-	errFileURLNotAbsolute = errors.New(
-		"a file:// storage_url needs an absolute path, " +
-			"as in file:///path/to/backup")
-	errNegativePruneGracePeriod = errors.New(
-		"prune_grace_period must not be negative")
 	errStorageNotConfigured = errors.New(
 		"storage not configured; set storage_url or provide s3.endpoint + " +
 			"s3.bucket + credentials")
@@ -191,15 +181,6 @@ type Config struct {
 	Snapshots        map[string]SnapshotConfig `yaml:"snapshots"`
 	CompressionLevel int                       `yaml:"compression_level"`
 
-	// PruneGracePeriod is how old a blob no manifest lists must be before
-	// a prune deletes it, and how old every object in a directory under
-	// metadata/ with no manifest must be before a prune deletes that
-	// directory. A backup writes its manifest only once it has uploaded
-	// all its blobs and its db.zst.age, so a younger blob or directory may
-	// belong to a backup still running, on this host or another sharing
-	// the destination store.
-	PruneGracePeriod time.Duration `yaml:"prune_grace_period"`
-
 	// StorageURL specifies the storage backend using a URL format.
 	// Takes precedence over S3Config if set.
 	// Supported formats:
@@ -249,48 +230,14 @@ func New(path Path) (*Config, error) {
 	return cfg, nil
 }
 
-// Load reads the configuration file at path, parses it with Parse, warns
+// Load reads and parses the configuration file from the specified path.
-// when others can read the file, and validates the configuration.
+// It applies default values for optional fields, performs environment variable
-// Returns an error if the file cannot be read, parsed, or if validation
+// substitution using smartconfig, and validates the configuration.
-// fails.
+// The configuration file should be in YAML format. Returns an error if the file
+// cannot be read, parsed, or if validation fails.
 func Load(path string) (*Config, error) {
-	data, err := os.ReadFile(path) //nolint:gosec // G304: config path is operator-supplied
-	if err != nil {
-		return nil, fmt.Errorf("failed to load config file: %w", err)
-	}
-
-	cfg, err := Parse(data)
-	if err != nil {
-		return nil, err
-	}
-
-	// Check config file permissions (warn if world or group readable)
-	//nolint:gosec // G703: config path is operator-supplied by design
-	info, statErr := os.Stat(path)
-	if statErr == nil {
-		mode := info.Mode().Perm()
-		if mode&0044 != 0 { // group or world readable
-			log.Warn(cfg.readableByOthersWarning(),
-				"path", path,
-				"mode", fmt.Sprintf("%04o", mode),
-				"recommendation", "chmod 600 "+path)
-		}
-	}
-
-	err = cfg.Validate()
-	if err != nil {
-		return nil, fmt.Errorf("invalid config: %w", err)
-	}
-
-	return cfg, nil
-}
-
-// Parse reads YAML config data as Load does, without validating it. It
-// applies default values for optional fields, fills in ${...} references
-// using smartconfig, and expands ~ in paths.
-func Parse(data []byte) (*Config, error) {
 	// Load config using smartconfig for interpolation
-	sc, err := smartconfig.NewFromReader(bytes.NewReader(data))
+	sc, err := smartconfig.NewFromConfigPath(path)
 	if err != nil {
 		return nil, fmt.Errorf("failed to load config file: %w", err)
 	}
@@ -301,7 +248,6 @@ func Parse(data []byte) (*Config, error) {
 		ChunkSize:        defaultChunkSize,
 		IndexPath:        filepath.Join(xdg.DataHome, appName, "index.sqlite"),
 		CompressionLevel: defaultCompressionLevel,
-		PruneGracePeriod: defaultPruneGracePeriod,
 		S3:               S3Config{PartSize: defaultS3PartSize},
 	}
 
@@ -353,6 +299,24 @@ func Parse(data []byte) (*Config, error) {
 		cfg.S3.Region = "us-east-1"
 	}
 
+	// Check config file permissions (warn if world or group readable)
+	//nolint:gosec // G703: config path is operator-supplied by design
+	info, statErr := os.Stat(path)
+	if statErr == nil {
+		mode := info.Mode().Perm()
+		if mode&0044 != 0 { // group or world readable
+			log.Warn(cfg.readableByOthersWarning(),
+				"path", path,
+				"mode", fmt.Sprintf("%04o", mode),
+				"recommendation", "chmod 600 "+path)
+		}
+	}
+
+	err = cfg.Validate()
+	if err != nil {
+		return nil, fmt.Errorf("invalid config: %w", err)
+	}
+
 	return cfg, nil
 }
 
@@ -370,7 +334,6 @@ func Parse(data []byte) (*Config, error) {
 //     exceeds the configured limit
 //   - Compression level must be between 1 and 19
 //   - S3 part size must be between 5MiB and 5GiB, the part sizes S3 accepts
-//   - Prune grace period must not be negative
 //
 // Returns an error describing the first validation failure encountered.
 func (c *Config) Validate() error {
@@ -420,10 +383,6 @@ func (c *Config) Validate() error {
 		return errBadS3PartSize
 	}
 
-	if c.PruneGracePeriod < 0 {
-		return errNegativePruneGracePeriod
-	}
-
 	return nil
 }
 
@@ -502,18 +461,11 @@ func (c *Config) validateStorage() error {
 
 // validateStorageURL validates URL-based storage configuration. File and
 // rclone URLs need no credentials; S3 URLs require the legacy s3.*
-// credential fields. A file URL must name an absolute path: a relative one
+// credential fields.
-// would resolve against the working directory, so the destination would
-// move with it.
 func (c *Config) validateStorageURL() error {
 	switch {
 	case strings.HasPrefix(c.StorageURL, "file://"):
-		// storage.ParseStorageURL applies the same rule, but config
+		// File storage doesn't need S3 credentials
-		// cannot import storage, which imports config.
-		if !strings.HasPrefix(c.StorageURL, "file:///") {
-			return errFileURLNotAbsolute
-		}
-
 		return nil
 	case strings.HasPrefix(c.StorageURL, "rclone://"):
 		// Rclone storage uses rclone's own config

internal/config/config_test.go

@@ -6,7 +6,6 @@ import (
 	"path/filepath"
 	"strings"
 	"testing"
-	"time"
 
 	"sneak.berlin/go/vaultik/internal/chunker"
 	"sneak.berlin/go/vaultik/internal/log"
@@ -338,178 +337,6 @@ func TestLoadS3PartSize(t *testing.T) {
 	})
 }
 
-// TestDocumentedSizeDefaults checks that the defaults are the documented
-// chunk_size 10MB and blob_size_limit 10GB as the parser reads those values
-// (1000-based), so writing a default out in the config file changes nothing.
-func TestDocumentedSizeDefaults(t *testing.T) {
-	t.Parallel()
-
-	cfg, err := Parse([]byte("chunk_size: 10MB\nblob_size_limit: 10GB\n"))
-	if err != nil {
-		t.Fatalf("Parse() unexpected error: %v", err)
-	}
-
-	if cfg.ChunkSize != defaultChunkSize {
-		t.Errorf("chunk_size: 10MB is %d bytes, the default is %d",
-			cfg.ChunkSize, defaultChunkSize)
-	}
-
-	if cfg.BlobSizeLimit != defaultBlobSizeLimit {
-		t.Errorf("blob_size_limit: 10GB is %d bytes, the default is %d",
-			cfg.BlobSizeLimit, defaultBlobSizeLimit)
-	}
-}
-
-// TestDocumentedSizeExamples checks the 1MB minimum chunk_size and that
-// every size the README, config.example.yml and the config init template
-// list as an example is accepted.
-func TestDocumentedSizeExamples(t *testing.T) {
-	t.Parallel()
-
-	const withoutSizes = "snapshots:\n" +
-		"  test:\n" +
-		"    paths: [/tmp/vaultik-test-source]\n" +
-		"storage_url: file:///tmp/vaultik-test-storage\n"
-
-	tests := []struct {
-		setting string
-		wantErr error
-	}{
-		{"chunk_size: 1MB", nil},
-		{"chunk_size: 999999", errChunkSizeTooSmall},
-		{"chunk_size: 5M", nil},
-		{"chunk_size: 10M", nil},
-		{"chunk_size: 10MB", nil},
-		{"chunk_size: 64MiB", nil},
-		{"chunk_size: 1GB", nil},
-		// Four times the default chunk_size, the documented minimum.
-		{"blob_size_limit: 40MB", nil},
-		{"blob_size_limit: 500MB", nil},
-		{"blob_size_limit: 1GB", nil},
-		{"blob_size_limit: 1GiB", nil},
-		{"blob_size_limit: 10G", nil},
-		{"blob_size_limit: 10GB", nil},
-		{"s3: {part_size: 5MiB}", nil},
-		{"s3: {part_size: 10MB}", nil},
-		{"s3: {part_size: 16MiB}", nil},
-		{"s3: {part_size: 100MiB}", nil},
-		{"s3: {part_size: 5GiB}", nil},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.setting, func(t *testing.T) {
-			t.Parallel()
-
-			cfg, err := Parse([]byte(withoutSizes + tt.setting + "\n"))
-			if err != nil {
-				t.Fatalf("Parse() unexpected error: %v", err)
-			}
-
-			err = cfg.Validate()
-			if !errors.Is(err, tt.wantErr) {
-				t.Fatalf("Validate() error = %v, want %v", err, tt.wantErr)
-			}
-		})
-	}
-}
-
-// TestValidatePruneGracePeriod checks that a negative prune_grace_period
-// is refused rather than acting like 0s, which deletes unreferenced blobs
-// and directories under metadata/ with no manifest at once, and that 0s
-// and the documented examples are accepted.
-func TestValidatePruneGracePeriod(t *testing.T) {
-	t.Parallel()
-
-	const withoutGracePeriod = "snapshots:\n" +
-		"  test:\n" +
-		"    paths: [/tmp/vaultik-test-source]\n" +
-		"storage_url: file:///tmp/vaultik-test-storage\n"
-
-	tests := []struct {
-		setting string
-		wantErr error
-	}{
-		{"prune_grace_period: 0s", nil},
-		{"prune_grace_period: 90m", nil},
-		{"prune_grace_period: 36h", nil},
-		{"prune_grace_period: -1h", errNegativePruneGracePeriod},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.setting, func(t *testing.T) {
-			t.Parallel()
-
-			cfg, err := Parse([]byte(withoutGracePeriod + tt.setting + "\n"))
-			if err != nil {
-				t.Fatalf("Parse() unexpected error: %v", err)
-			}
-
-			err = cfg.Validate()
-			if !errors.Is(err, tt.wantErr) {
-				t.Fatalf("Validate() error = %v, want %v", err, tt.wantErr)
-			}
-		})
-	}
-}
-
-// TestLoadPruneGracePeriod checks that a config file without
-// prune_grace_period loads with the documented 24h. The value is written out
-// here rather than taken from defaultPruneGracePeriod, so that a change of the
-// default fails this test.
-func TestLoadPruneGracePeriod(t *testing.T) {
-	t.Parallel()
-
-	const withoutGracePeriod = "snapshots:\n" +
-		"  test:\n" +
-		"    paths: [/tmp/vaultik-test-source]\n" +
-		"storage_url: file:///tmp/vaultik-test-storage\n"
-
-	path := filepath.Join(t.TempDir(), "config.yml")
-
-	err := os.WriteFile(path, []byte(withoutGracePeriod), 0o600)
-	if err != nil {
-		t.Fatalf("write config: %v", err)
-	}
-
-	cfg, err := Load(path)
-	if err != nil {
-		t.Fatalf("Load() unexpected error: %v", err)
-	}
-
-	if cfg.PruneGracePeriod != 24*time.Hour {
-		t.Errorf("prune_grace_period = %s, want 24h", cfg.PruneGracePeriod)
-	}
-}
-
-// TestLoadRejectsRelativeFileURL checks that a file:// storage_url with a
-// relative path fails at load. Accepted, it would resolve against the
-// working directory, so a backup run from another directory would write
-// to a different destination and still succeed.
-func TestLoadRejectsRelativeFileURL(t *testing.T) {
-	t.Parallel()
-
-	const relativeConfig = "snapshots:\n" +
-		"  test:\n" +
-		"    paths: [/tmp/vaultik-test-source]\n" +
-		"storage_url: file://dest\n"
-
-	path := filepath.Join(t.TempDir(), "config.yml")
-
-	err := os.WriteFile(path, []byte(relativeConfig), 0o600)
-	if err != nil {
-		t.Fatalf("write config: %v", err)
-	}
-
-	_, err = Load(path)
-	if !errors.Is(err, errFileURLNotAbsolute) {
-		t.Fatalf("Load() error = %v, want errFileURLNotAbsolute", err)
-	}
-
-	if !strings.Contains(err.Error(), "absolute path") {
-		t.Errorf("error %q does not say to use an absolute path", err.Error())
-	}
-}
-
 // TestValidateAgeRecipients checks that recipients are parsed at config load
 // (a bad entry fails immediately, not mid-backup) and that no invalid entry —
 // least of all a pasted secret key — is echoed in the error. An empty list

internal/database/blob_chunks.go

@@ -58,7 +58,12 @@ func (r *BlobChunkRepository) GetByBlobID(
 		return nil, fmt.Errorf("querying blob chunks: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	var blobChunks []*BlobChunk
 

internal/database/blobs.go

@@ -83,7 +83,12 @@ func (r *BlobRepository) GetAll(ctx context.Context) (map[string]*Blob, error) {
 		return nil, fmt.Errorf("querying blobs: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	out := make(map[string]*Blob)
 
@@ -154,16 +159,13 @@ func (r *BlobRepository) UpdateFinished(
 	return nil
 }
 
-// UpdateUploaded marks a blob as uploaded and records the size of the
+// UpdateUploaded marks a blob as uploaded
-// stored object as its compressed size. That size can differ from the
-// local copy's when an identical blob was already stored with another
-// compression level or other recipients.
 func (r *BlobRepository) UpdateUploaded(
-	ctx context.Context, tx *sql.Tx, id string, storedSize int64,
+	ctx context.Context, tx *sql.Tx, id string,
 ) error {
 	query := `
 		UPDATE blobs 
-		SET uploaded_ts = ?, compressed_size = ?
+		SET uploaded_ts = ?
 		WHERE id = ?
 	`
 
@@ -171,9 +173,9 @@ func (r *BlobRepository) UpdateUploaded(
 
 	var err error
 	if tx != nil {
-		_, err = tx.ExecContext(ctx, query, now, storedSize, id)
+		_, err = tx.ExecContext(ctx, query, now, id)
 	} else {
-		_, err = r.db.ExecWithLog(ctx, query, now, storedSize, id)
+		_, err = r.db.ExecWithLog(ctx, query, now, id)
 	}
 
 	if err != nil {

internal/database/blobs_test.go

@@ -122,8 +122,8 @@ func TestBlobRepositoryUpdates(t *testing.T) {
 		t.Errorf("expected compressed size 500, got %d", updated.CompressedSize)
 	}
 
-	// Test UpdateUploaded, with a stored object larger than the local copy
+	// Test UpdateUploaded
-	err = repo.UpdateUploaded(ctx, nil, blob.ID.String(), 600)
+	err = repo.UpdateUploaded(ctx, nil, blob.ID.String())
 	if err != nil {
 		t.Fatalf("failed to update blob as uploaded: %v", err)
 	}
@@ -141,10 +141,6 @@ func TestBlobRepositoryUpdates(t *testing.T) {
 	if uploaded.UploadedTS.Before(now.Add(-1 * time.Second)) {
 		t.Error("uploaded timestamp should be around test time")
 	}
-
-	if uploaded.CompressedSize != 600 {
-		t.Errorf("expected the stored size 600, got %d", uploaded.CompressedSize)
-	}
 }
 
 func TestBlobRepositoryDuplicate(t *testing.T) {

internal/database/chunk_files.go

@@ -61,7 +61,12 @@ func (r *ChunkFileRepository) GetByChunkHash(
 		return nil, fmt.Errorf("querying chunk files: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	return r.scanChunkFiles(rows)
 }
@@ -82,7 +87,12 @@ func (r *ChunkFileRepository) GetByFilePath(
 		return nil, fmt.Errorf("querying chunk files: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	return r.scanChunkFiles(rows)
 }
@@ -102,7 +112,12 @@ func (r *ChunkFileRepository) GetByFileID(
 		return nil, fmt.Errorf("querying chunk files: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	return r.scanChunkFiles(rows)
 }

internal/database/chunks.go

@@ -107,7 +107,12 @@ func (r *ChunkRepository) GetByHashes(
 		return nil, fmt.Errorf("querying chunks: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	var chunks []*Chunk
 
@@ -147,7 +152,12 @@ func (r *ChunkRepository) ListUnpacked(
 		return nil, fmt.Errorf("querying unpacked chunks: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	var chunks []*Chunk
 

internal/database/chunks_ext.go

@@ -38,7 +38,12 @@ func (r *ChunkRepository) list(ctx context.Context, query string) ([]*Chunk, err
 		return nil, fmt.Errorf("querying chunks: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	var chunks []*Chunk
 

internal/database/errors.go

@@ -0,0 +1,12 @@
+package database
+
+import (
+	"fmt"
+	"os"
+)
+
+// Fatalf prints an error message to stderr and exits with status 1
+func Fatalf(format string, args ...any) {
+	fmt.Fprintf(os.Stderr, "FATAL: "+format+"\n", args...)
+	os.Exit(1)
+}

internal/database/file_chunks.go

@@ -62,7 +62,12 @@ func (r *FileChunkRepository) GetByPath(
 		return nil, fmt.Errorf("querying file chunks: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	return r.scanFileChunks(rows)
 }
@@ -83,7 +88,12 @@ func (r *FileChunkRepository) GetByFileID(
 		return nil, fmt.Errorf("querying file chunks: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	return r.scanFileChunks(rows)
 }
@@ -107,7 +117,12 @@ func (r *FileChunkRepository) GetByPathTx(
 		return nil, fmt.Errorf("querying file chunks: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	fileChunks, err := r.scanFileChunks(rows)
 	LogSQL("GetByPathTx", "Complete", path, "count", len(fileChunks))

internal/database/files.go

@@ -175,7 +175,12 @@ func (r *FileRepository) ListModifiedSince(
 		return nil, fmt.Errorf("querying files: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	var files []*File
 
@@ -251,46 +256,12 @@ func (r *FileRepository) ListUnderPath(
 		return nil, fmt.Errorf("querying files: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
-
+		err := rows.Close()
-	var files []*File
-
-	for rows.Next() {
-		file, err := r.scanFileRows(rows)
 		if err != nil {
-			return nil, fmt.Errorf("scanning file: %w", err)
+			Fatalf("failed to close rows: %v", err)
 		}
-
+	}()
-		files = append(files, file)
-	}
-
-	return files, rows.Err()
-}
-
-// ListUnderPathInSnapshot returns the files that ListUnderPath returns
-// for path and that the snapshot lists, in no particular order.
-func (r *FileRepository) ListUnderPathInSnapshot(
-	ctx context.Context, path, snapshotID string,
-) ([]*File, error) {
-	path = strings.TrimRight(path, "/")
-	dirPrefix := path + "/"
-
-	query := `
-		SELECT f.id, f.path, f.source_path, f.mtime, f.mtime_nsec, f.size,
-			f.mode, f.uid, f.gid, f.link_target
-		FROM files f
-		JOIN snapshot_files sf ON sf.file_id = f.id
-		WHERE sf.snapshot_id = ?
-		  AND (f.path = ? OR substr(f.path, 1, length(?)) = ?)
-	`
-
-	rows, err := r.db.conn.QueryContext(ctx, query,
-		snapshotID, path, dirPrefix, dirPrefix)
-	if err != nil {
-		return nil, fmt.Errorf("querying files: %w", err)
-	}
-
-	defer func() { _ = rows.Close() }()
 
 	var files []*File
 
@@ -333,7 +304,12 @@ func (r *FileRepository) ListIDsWithChunksNotInUploadedBlobs(
 		return nil, fmt.Errorf("querying files: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	var ids []types.FileID
 
@@ -364,7 +340,12 @@ func (r *FileRepository) ListAll(ctx context.Context) ([]*File, error) {
 		return nil, fmt.Errorf("querying files: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	var files []*File
 

internal/database/files_test.go

@@ -212,65 +212,6 @@ func TestFileRepositoryListUnderPath(t *testing.T) {
 	}
 }
 
-// ListUnderPathInSnapshot leaves out files outside path and files the
-// snapshot does not list, though another snapshot lists them.
-func TestFileRepositoryListUnderPathInSnapshot(t *testing.T) {
-	t.Parallel()
-
-	db, cleanup := setupTestDB(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	files := database.NewFileRepository(db)
-	snapshots := database.NewSnapshotRepository(db)
-
-	listed := map[string][]string{
-		"one": {"/src/a.txt", "/src2/c.txt"},
-		"two": {"/src/b.txt"},
-	}
-
-	for snapshotID, paths := range listed {
-		err := snapshots.Create(ctx, nil, &database.Snapshot{
-			ID:        types.SnapshotID(snapshotID),
-			Hostname:  "host",
-			StartedAt: time.Now(),
-		})
-		if err != nil {
-			t.Fatalf("failed to create snapshot %s: %v", snapshotID, err)
-		}
-
-		for _, path := range paths {
-			err := files.Create(ctx, nil, &database.File{
-				Path:  types.FilePath(path),
-				MTime: time.Now().Truncate(time.Second),
-				Mode:  0644,
-			})
-			if err != nil {
-				t.Fatalf("failed to create %s: %v", path, err)
-			}
-
-			err = snapshots.AddFile(ctx, nil, snapshotID, path)
-			if err != nil {
-				t.Fatalf("failed to add %s to %s: %v", path, snapshotID, err)
-			}
-		}
-	}
-
-	found, err := files.ListUnderPathInSnapshot(ctx, "/src", "one")
-	if err != nil {
-		t.Fatalf("failed to list files: %v", err)
-	}
-
-	got := make([]string, 0, len(found))
-	for _, f := range found {
-		got = append(got, f.Path.String())
-	}
-
-	if !slices.Equal(got, []string{"/src/a.txt"}) {
-		t.Errorf("got %q, want only /src/a.txt", got)
-	}
-}
-
 func TestFileRepositorySymlink(t *testing.T) {
 	t.Parallel()
 

internal/database/repositories.go

@@ -3,7 +3,6 @@ package database
 import (
 	"context"
 	"database/sql"
-	"errors"
 	"fmt"
 )
 
@@ -61,24 +60,22 @@ func (r *Repositories) WithTx(ctx context.Context, fn TxFunc) error {
 
 	defer func() {
 		if p := recover(); p != nil {
-			// The panic is the failure to report, so a rollback error
+			rollbackErr := tx.Rollback()
-			// is dropped.
+			if rollbackErr != nil {
-			_ = tx.Rollback()
+				Fatalf("failed to rollback transaction: %v", rollbackErr)
+			}
 
 			panic(p)
+		} else if err != nil {
+			rollbackErr := tx.Rollback()
+			if rollbackErr != nil {
+				Fatalf("failed to rollback transaction: %v", rollbackErr)
+			}
 		}
 	}()
 
 	err = fn(ctx, tx)
 	if err != nil {
-		// Once ctx is cancelled, database/sql rolls the transaction
-		// back itself and Rollback returns sql.ErrTxDone.
-		rollbackErr := tx.Rollback()
-		if rollbackErr != nil && !errors.Is(rollbackErr, sql.ErrTxDone) {
-			return fmt.Errorf("%w; rolling back transaction: %w",
-				err, rollbackErr)
-		}
-
 		return err
 	}
 
@@ -106,24 +103,22 @@ func (r *Repositories) WithReadTx(ctx context.Context, fn TxFunc) error {
 
 	defer func() {
 		if p := recover(); p != nil {
-			// The panic is the failure to report, so a rollback error
+			rollbackErr := tx.Rollback()
-			// is dropped.
+			if rollbackErr != nil {
-			_ = tx.Rollback()
+				Fatalf("failed to rollback transaction: %v", rollbackErr)
+			}
 
 			panic(p)
+		} else if err != nil {
+			rollbackErr := tx.Rollback()
+			if rollbackErr != nil {
+				Fatalf("failed to rollback transaction: %v", rollbackErr)
+			}
 		}
 	}()
 
 	err = fn(ctx, tx)
 	if err != nil {
-		// Once ctx is cancelled, database/sql rolls the transaction
-		// back itself and Rollback returns sql.ErrTxDone.
-		rollbackErr := tx.Rollback()
-		if rollbackErr != nil && !errors.Is(rollbackErr, sql.ErrTxDone) {
-			return fmt.Errorf("%w; rolling back transaction: %w",
-				err, rollbackErr)
-		}
-
 		return err
 	}
 

internal/database/repositories_test.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"database/sql"
 	"errors"
-	"strings"
 	"testing"
 	"time"
 
@@ -236,125 +235,6 @@ func TestRepositoriesTransactionRollback(t *testing.T) {
 	}
 }
 
-// When the context is cancelled during the body, database/sql rolls the
-// transaction back itself, so WithTx's own rollback finds it already
-// done. WithTx must return the body's error alone, without that rollback.
-func TestRepositoriesTransactionContextCancelled(t *testing.T) {
-	t.Parallel()
-
-	db, cleanup := setupTestDB(t)
-	defer cleanup()
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	repos := database.NewRepositories(db)
-
-	err := repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
-		file := &database.File{
-			Path:  "/test/cancelled_file.txt",
-			MTime: time.Now().Truncate(time.Second),
-			Size:  1024,
-			Mode:  0644,
-			UID:   1000,
-			GID:   1000,
-		}
-
-		err := repos.Files.Create(ctx, tx, file)
-		if err != nil {
-			return err
-		}
-
-		cancel()
-
-		// database/sql rolls back from a goroutine of its own; wait
-		// until it has, so the test does not depend on that race.
-		for {
-			_, err = tx.ExecContext(context.WithoutCancel(ctx), "SELECT 1")
-			if errors.Is(err, sql.ErrTxDone) {
-				return ctx.Err()
-			}
-
-			time.Sleep(time.Millisecond)
-		}
-	})
-	if !errors.Is(err, context.Canceled) {
-		t.Fatalf("expected context.Canceled, got: %v", err)
-	}
-
-	if errors.Is(err, sql.ErrTxDone) {
-		t.Fatalf("the already-done rollback was reported: %v", err)
-	}
-
-	file, err := repos.Files.GetByPath(
-		context.Background(), "/test/cancelled_file.txt",
-	)
-	if err != nil {
-		t.Fatalf("error checking for file: %v", err)
-	}
-
-	if file != nil {
-		t.Error("file should not exist after the cancelled transaction")
-	}
-}
-
-// A body that ends the transaction itself with ROLLBACK makes WithTx's
-// own rollback fail. WithTx must return that failure together with the
-// body's error.
-func TestRepositoriesTransactionRollbackFails(t *testing.T) {
-	t.Parallel()
-
-	db, cleanup := setupTestDB(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	repos := database.NewRepositories(db)
-
-	err := repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
-		_, err := tx.ExecContext(ctx, "ROLLBACK")
-		if err != nil {
-			return err
-		}
-
-		return errIntentionalRollback
-	})
-	if !errors.Is(err, errIntentionalRollback) {
-		t.Fatalf("expected the body's error, got: %v", err)
-	}
-
-	if !strings.Contains(err.Error(), "rolling back transaction") {
-		t.Errorf("expected the failed rollback in the error, got: %v", err)
-	}
-}
-
-// When the body ends the transaction itself with ROLLBACK and then
-// panics, WithTx's own rollback fails; the panic must still reach the
-// caller.
-func TestRepositoriesTransactionPanicRollbackFails(t *testing.T) {
-	t.Parallel()
-
-	db, cleanup := setupTestDB(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	repos := database.NewRepositories(db)
-
-	defer func() {
-		if recover() == nil {
-			t.Error("expected the body's panic to reach the caller")
-		}
-	}()
-
-	_ = repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
-		_, err := tx.ExecContext(ctx, "ROLLBACK")
-		if err != nil {
-			return err
-		}
-
-		panic(errIntentionalRollback)
-	})
-}
-
 func TestRepositoriesReadTransaction(t *testing.T) {
 	t.Parallel()
 
@@ -411,41 +291,3 @@ func TestRepositoriesReadTransaction(t *testing.T) {
 		t.Error("expected to retrieve file in read transaction")
 	}
 }
-
-// When the context is cancelled during a read transaction's body,
-// database/sql rolls the transaction back itself, so WithReadTx's own
-// rollback finds it already done. WithReadTx must return the body's error
-// alone, without that rollback.
-func TestRepositoriesReadTransactionContextCancelled(t *testing.T) {
-	t.Parallel()
-
-	db, cleanup := setupTestDB(t)
-	defer cleanup()
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	repos := database.NewRepositories(db)
-
-	err := repos.WithReadTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
-		cancel()
-
-		// database/sql rolls back from a goroutine of its own; wait
-		// until it has, so the test does not depend on that race.
-		for {
-			_, err := tx.ExecContext(context.WithoutCancel(ctx), "SELECT 1")
-			if errors.Is(err, sql.ErrTxDone) {
-				return ctx.Err()
-			}
-
-			time.Sleep(time.Millisecond)
-		}
-	})
-	if !errors.Is(err, context.Canceled) {
-		t.Fatalf("expected context.Canceled, got: %v", err)
-	}
-
-	if errors.Is(err, sql.ErrTxDone) {
-		t.Fatalf("the already-done rollback was reported: %v", err)
-	}
-}

internal/database/schema/001.sql

@@ -86,10 +86,8 @@ CREATE TABLE IF NOT EXISTS snapshots (
     completed_at INTEGER,
     file_count INTEGER NOT NULL DEFAULT 0,
     chunk_count INTEGER NOT NULL DEFAULT 0,
-    new_chunk_size INTEGER NOT NULL DEFAULT 0,
     blob_count INTEGER NOT NULL DEFAULT 0,
     total_size INTEGER NOT NULL DEFAULT 0,
-    uncompressed_chunk_size INTEGER NOT NULL DEFAULT 0,
     blob_size INTEGER NOT NULL DEFAULT 0,
     blob_uncompressed_size INTEGER NOT NULL DEFAULT 0,
     compression_ratio REAL NOT NULL DEFAULT 1.0,
@@ -123,16 +121,6 @@ CREATE TABLE IF NOT EXISTS snapshot_blobs (
 -- Index for efficient blob lookups (used in orphan detection)
 CREATE INDEX IF NOT EXISTS idx_snapshot_blobs_blob_id ON snapshot_blobs(blob_id);
 
--- Snapshot mount points table: the directories at or below a configured
--- path that the snapshot's backup found on a different filesystem from
--- their parent directory, as a mount point is, and found an entry in
-CREATE TABLE IF NOT EXISTS snapshot_mount_points (
-    snapshot_id TEXT NOT NULL,
-    path TEXT NOT NULL,
-    PRIMARY KEY (snapshot_id, path),
-    FOREIGN KEY (snapshot_id) REFERENCES snapshots(id) ON DELETE CASCADE
-);
-
 -- Uploads table: tracks blob upload metrics
 CREATE TABLE IF NOT EXISTS uploads (
     blob_hash TEXT PRIMARY KEY,

internal/database/snapshots.go

@@ -24,8 +24,7 @@ var (
 )
 
 // SnapshotRepository provides access to the snapshots table and its
-// snapshot_files / snapshot_blobs association tables, and to the mount
+// snapshot_files / snapshot_blobs association tables.
-// points each snapshot's backup found (snapshot_mount_points).
 type SnapshotRepository struct {
 	db *DB
 }
@@ -121,11 +120,7 @@ func (r *SnapshotRepository) UpdateCounts(
 	return nil
 }
 
-// UpdateExtendedStats updates extended statistics for a snapshot. It also
+// UpdateExtendedStats updates extended statistics for a snapshot
-// records the total plaintext size of the distinct chunks the snapshot's
-// files reference. Only the snapshot's own backup can take that total: a
-// file's row is shared by every snapshot that lists it, and a later
-// backup of a changed file rewrites the row with the new chunks.
 func (r *SnapshotRepository) UpdateExtendedStats(
 	ctx context.Context,
 	tx *sql.Tx,
@@ -134,7 +129,6 @@ func (r *SnapshotRepository) UpdateExtendedStats(
 	compressionLevel int,
 	uploadBytes int64,
 	uploadDurationMs int64,
-	newChunkSize int64,
 ) error {
 	compressionRatio, err := r.extendedCompressionRatio(
 		ctx, tx, snapshotID, blobUncompressedSize,
@@ -149,29 +143,18 @@ func (r *SnapshotRepository) UpdateExtendedStats(
 		    compression_ratio = ?,
 		    compression_level = ?,
 		    upload_bytes = ?,
-		    upload_duration_ms = ?,
+		    upload_duration_ms = ?
-		    new_chunk_size = ?,
-		    uncompressed_chunk_size = (
-		        SELECT COALESCE(SUM(c.size), 0)
-		        FROM (
-		            SELECT DISTINCT fc.chunk_hash
-		            FROM snapshot_files sf
-		            JOIN file_chunks fc ON sf.file_id = fc.file_id
-		            WHERE sf.snapshot_id = snapshots.id
-		        ) sc
-		        JOIN chunks c ON sc.chunk_hash = c.chunk_hash
-		    )
 		WHERE id = ?
 	`
 
 	if tx != nil {
 		_, err = tx.ExecContext(ctx, query,
 			blobUncompressedSize, compressionRatio, compressionLevel,
-			uploadBytes, uploadDurationMs, newChunkSize, snapshotID)
+			uploadBytes, uploadDurationMs, snapshotID)
 	} else {
 		_, err = r.db.ExecWithLog(ctx, query,
 			blobUncompressedSize, compressionRatio, compressionLevel,
-			uploadBytes, uploadDurationMs, newChunkSize, snapshotID)
+			uploadBytes, uploadDurationMs, snapshotID)
 	}
 
 	if err != nil {
@@ -256,7 +239,12 @@ func (r *SnapshotRepository) GetOnlySnapshot(ctx context.Context) (*Snapshot, er
 		return nil, fmt.Errorf("querying snapshots: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	snapshots, err := r.scanSnapshotRows(rows)
 	if err != nil {
@@ -291,7 +279,12 @@ func (r *SnapshotRepository) ListRecent(
 		return nil, fmt.Errorf("querying snapshots: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	return r.scanSnapshotRows(rows)
 }
@@ -501,57 +494,32 @@ func (r *SnapshotRepository) GetBlobHashes(
 		ORDER BY sb.blob_hash
 	`
 
-	blobs, err := r.queryStrings(ctx, query, snapshotID)
+	rows, err := r.db.conn.QueryContext(ctx, query, snapshotID)
 	if err != nil {
 		return nil, fmt.Errorf("querying blob hashes: %w", err)
 	}
 
-	return blobs, nil
+	defer func() {
-}
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
-// AddMountPoint records dir as a directory that the backup of a snapshot
+	var blobs []string
-// found on a different filesystem from its parent directory, as a mount
-// point is, using tx when non-nil.
-func (r *SnapshotRepository) AddMountPoint(
-	ctx context.Context, tx *sql.Tx, snapshotID string, dir string,
-) error {
-	query := `
-		INSERT OR IGNORE INTO snapshot_mount_points (snapshot_id, path)
-		VALUES (?, ?)
-	`
 
-	var err error
+	for rows.Next() {
-	if tx != nil {
+		var blobHash string
-		_, err = tx.ExecContext(ctx, query, snapshotID, dir)
+
-	} else {
+		err := rows.Scan(&blobHash)
-		_, err = r.db.ExecWithLog(ctx, query, snapshotID, dir)
+		if err != nil {
+			return nil, fmt.Errorf("scanning blob hash: %w", err)
+		}
+
+		blobs = append(blobs, blobHash)
 	}
 
-	if err != nil {
+	return blobs, rows.Err()
-		return fmt.Errorf("adding mount point to snapshot: %w", err)
-	}
-
-	return nil
-}
-
-// GetMountPoints returns the directories AddMountPoint recorded for a
-// snapshot, sorted.
-func (r *SnapshotRepository) GetMountPoints(
-	ctx context.Context, snapshotID string,
-) ([]string, error) {
-	query := `
-		SELECT path
-		FROM snapshot_mount_points
-		WHERE snapshot_id = ?
-		ORDER BY path
-	`
-
-	dirs, err := r.queryStrings(ctx, query, snapshotID)
-	if err != nil {
-		return nil, fmt.Errorf("querying mount points: %w", err)
-	}
-
-	return dirs, nil
 }
 
 // GetSnapshotTotalCompressedSize returns the total compressed size of all
@@ -600,42 +568,71 @@ func (r *SnapshotRepository) GetSnapshotBlobSizes(
 	return compressed, uncompressed, nil
 }
 
-// GetSnapshotUncompressedChunkSize returns the total plaintext size of the
+// GetSnapshotUncompressedChunkSize returns the sum of plaintext sizes of all unique
-// distinct chunks the snapshot's files reference, as the snapshot's backup
+// chunks referenced by a snapshot (via snapshot_files → file_chunks → chunks).
-// recorded it (see UpdateExtendedStats).
 func (r *SnapshotRepository) GetSnapshotUncompressedChunkSize(
 	ctx context.Context, snapshotID string,
 ) (int64, error) {
-	query := `SELECT uncompressed_chunk_size FROM snapshots WHERE id = ?`
+	query := `
+		SELECT COALESCE(SUM(c.size), 0)
+		FROM (
+			SELECT DISTINCT fc.chunk_hash
+			FROM snapshot_files sf
+			JOIN file_chunks fc ON sf.file_id = fc.file_id
+			WHERE sf.snapshot_id = ?
+		) sc
+		JOIN chunks c ON sc.chunk_hash = c.chunk_hash
+	`
 
-	var uncompressedChunkSize int64
+	var totalSize int64
 
-	err := r.db.conn.QueryRowContext(ctx, query, snapshotID).Scan(&uncompressedChunkSize)
+	err := r.db.conn.QueryRowContext(ctx, query, snapshotID).Scan(&totalSize)
 	if err != nil {
 		return 0, fmt.Errorf("querying uncompressed chunk size: %w", err)
 	}
 
-	return uncompressedChunkSize, nil
+	return totalSize, nil
 }
 
-// GetSnapshotNewChunkSize returns the total plaintext size of the chunks the
+// GetSnapshotNewChunkSize returns the sum of plaintext sizes of chunks that are
-// snapshot's backup stored that were not stored before, as the backup
+// referenced by this snapshot but not by any earlier completed snapshot known to
-// recorded it. It is not derived from the snapshot's files: a file's row is
+// the local database. The result is the marginal uncompressed data this snapshot
-// shared by every snapshot that lists it and is rewritten when the file
+// added to the dedup pool — i.e., the delta from prior snapshots.
-// changes, so it shows only the file's latest chunks.
 func (r *SnapshotRepository) GetSnapshotNewChunkSize(
 	ctx context.Context, snapshotID string,
 ) (int64, error) {
-	query := `SELECT new_chunk_size FROM snapshots WHERE id = ?`
+	query := `
+		WITH this_snap_chunks AS (
+			SELECT DISTINCT fc.chunk_hash
+			FROM snapshot_files sf
+			JOIN file_chunks fc ON sf.file_id = fc.file_id
+			WHERE sf.snapshot_id = ?
+		),
+		prior_chunks AS (
+			SELECT DISTINCT fc.chunk_hash
+			FROM snapshots s
+			JOIN snapshot_files sf ON sf.snapshot_id = s.id
+			JOIN file_chunks fc ON fc.file_id = sf.file_id
+			WHERE s.completed_at IS NOT NULL
+			  AND s.id != ?
+			  AND s.started_at < (SELECT started_at FROM snapshots WHERE id = ?)
+		)
+		SELECT COALESCE(SUM(c.size), 0)
+		FROM chunks c
+		JOIN this_snap_chunks t ON c.chunk_hash = t.chunk_hash
+		WHERE c.chunk_hash NOT IN (SELECT chunk_hash FROM prior_chunks)
+	`
 
-	var newChunkSize int64
+	var totalSize int64
 
-	err := r.db.conn.QueryRowContext(ctx, query, snapshotID).Scan(&newChunkSize)
+	err := r.db.conn.QueryRowContext(
+		ctx, query, snapshotID, snapshotID, snapshotID,
+	).Scan(&totalSize)
 	if err != nil {
 		return 0, fmt.Errorf("querying new chunk size: %w", err)
 	}
 
-	return newChunkSize, nil
+	return totalSize, nil
 }
 
 // GetIncompleteSnapshots returns all snapshots that haven't been completed
@@ -656,7 +653,12 @@ func (r *SnapshotRepository) GetIncompleteSnapshots(
 		return nil, fmt.Errorf("querying incomplete snapshots: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	return r.scanSnapshotRows(rows)
 }
@@ -679,7 +681,12 @@ func (r *SnapshotRepository) GetIncompleteByHostname(
 		return nil, fmt.Errorf("querying incomplete snapshots: %w", err)
 	}
 
-	defer func() { _ = rows.Close() }()
+	defer func() {
+		err := rows.Close()
+		if err != nil {
+			Fatalf("failed to close rows: %v", err)
+		}
+	}()
 
 	// Same column set as every other multi-row snapshot query, so the
 	// shared scanner applies — including its timestamp normalization.
@@ -740,34 +747,6 @@ func (r *SnapshotRepository) DeleteSnapshotUploads(
 	return nil
 }
 
-// queryStrings runs query, which selects one text column, and returns
-// its values in the order of the rows.
-func (r *SnapshotRepository) queryStrings(
-	ctx context.Context, query string, args ...any,
-) ([]string, error) {
-	rows, err := r.db.conn.QueryContext(ctx, query, args...)
-	if err != nil {
-		return nil, err
-	}
-
-	defer func() { _ = rows.Close() }()
-
-	var values []string
-
-	for rows.Next() {
-		var value string
-
-		err := rows.Scan(&value)
-		if err != nil {
-			return nil, err
-		}
-
-		values = append(values, value)
-	}
-
-	return values, rows.Err()
-}
-
 // extendedCompressionRatio computes the compression ratio for a snapshot
 // from its stored blob_size and the given uncompressed size. Returns 1.0
 // when the uncompressed size is zero.

internal/database/snapshots_test.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 	"math"
-	"slices"
 	"testing"
 	"time"
 
@@ -423,52 +422,3 @@ func TestSnapshotRepositoryDuplicate(t *testing.T) {
 		t.Error("expected error for duplicate snapshot")
 	}
 }
-
-// Deleting a snapshot from the local index deletes the mount points its
-// backup recorded, and no other snapshot's. See
-// https://git.eeqj.de/sneak/vaultik/issues/395.
-func TestSnapshotRepositoryDeleteRemovesMountPoints(t *testing.T) {
-	t.Parallel()
-
-	db, cleanup := setupTestDB(t)
-	defer cleanup()
-
-	ctx := context.Background()
-	repo := database.NewSnapshotRepository(db)
-
-	for _, id := range []types.SnapshotID{"kept", "deleted"} {
-		err := repo.Create(ctx, nil, &database.Snapshot{
-			ID:             id,
-			Hostname:       testHostname,
-			VaultikVersion: testVersion,
-			StartedAt:      time.Now().Truncate(time.Second),
-		})
-		if err != nil {
-			t.Fatalf("failed to create snapshot: %v", err)
-		}
-
-		err = repo.AddMountPoint(ctx, nil, id.String(), "/data/nas")
-		if err != nil {
-			t.Fatalf("failed to add mount point: %v", err)
-		}
-	}
-
-	err := repo.Delete(ctx, "deleted")
-	if err != nil {
-		t.Fatalf("failed to delete snapshot: %v", err)
-	}
-
-	for id, want := range map[string][]string{
-		"kept":    {"/data/nas"},
-		"deleted": nil,
-	} {
-		got, err := repo.GetMountPoints(ctx, id)
-		if err != nil {
-			t.Fatalf("failed to read mount points: %v", err)
-		}
-
-		if !slices.Equal(got, want) {
-			t.Errorf("mount points of %s: got %v, want %v", id, got, want)
-		}
-	}
-}

internal/log/tty_handler.go

@@ -10,8 +10,6 @@ import (
 	"sync"
 	"time"
 	"unicode"
-
-	"github.com/dustin/go-humanize"
 )
 
 // groupSeparator joins an open group path to an attribute key. This
@@ -306,13 +304,18 @@ func formatDuration(d time.Duration) string {
 	}
 }
 
-// formatBytes formats a byte count with humanize.Bytes, as every command
+// formatBytes formats bytes in a human-readable way
-// prints one. humanize.Bytes takes no negative count, so one is printed
-// as it is.
 func formatBytes(b int64) string {
-	if b < 0 {
+	const unit = 1024
+	if b < unit {
 		return fmt.Sprintf("%d B", b)
 	}
 
-	return humanize.Bytes(uint64(b))
+	div, exp := int64(unit), 0
+	for n := b / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+
+	return fmt.Sprintf("%.1f %cB", float64(b)/float64(div), "KMGTPE"[exp])
 }

internal/log/tty_handler_test.go

@@ -200,8 +200,7 @@ func TestTTYHandlerWithGroupQualifiesKeys(t *testing.T) {
 func TestTTYHandlerByteFormattingSurvivesGrouping(t *testing.T) {
 	t.Parallel()
 
-	// Printed as "1.0 MB", in powers of 1000 like every other byte count.
+	const oneAndAHalfKiB = 1536
-	const oneMegabyte = 1_000_000
 
 	for name, testCase := range map[string]struct {
 		derive func(*slog.Logger) *slog.Logger
@@ -224,13 +223,13 @@ func TestTTYHandlerByteFormattingSurvivesGrouping(t *testing.T) {
 			var buf bytes.Buffer
 
 			logger := slog.New(log.NewTTYHandler(&buf, debugHandlerOptions()))
-			testCase.derive(logger).Info("uploaded", "bytes", oneMegabyte)
+			testCase.derive(logger).Info("uploaded", "bytes", oneAndAHalfKiB)
 
 			line := ansiEscape.ReplaceAllString(buf.String(), "")
 
-			assert.Contains(t, line, testCase.key+"=1.0 MB",
+			assert.Contains(t, line, testCase.key+"=1.5 KB",
 				"a byte count must be human-readable however it is qualified")
-			assert.NotContains(t, line, strconv.Itoa(oneMegabyte),
+			assert.NotContains(t, line, strconv.Itoa(oneAndAHalfKiB),
 				"the raw number must not survive the formatting")
 		})
 	}

internal/s3/client.go

@@ -8,7 +8,6 @@ import (
 	"io"
 	"strings"
 	"sync/atomic"
-	"time"
 
 	"github.com/aws/aws-sdk-go-v2/aws"
 	"github.com/aws/aws-sdk-go-v2/config"
@@ -19,13 +18,6 @@ import (
 	"github.com/aws/smithy-go/logging"
 )
 
-// ErrNoContinuationToken is returned by ListObjects and ListObjectsStream
-// when the server marks a page of a listing truncated but sends no
-// continuation token to fetch the rest with, as a server answering V2
-// listings V1-style does.
-var ErrNoContinuationToken = errors.New(
-	"server marked the listing truncated but sent no continuation token")
-
 // Client wraps the AWS S3 client for vaultik operations.
 // It provides a simplified interface for S3 operations with automatic
 // prefix handling and connection management. All operations are performed
@@ -222,7 +214,7 @@ func (c *Client) ListObjects(ctx context.Context, prefix string) ([]string, erro
 	})
 
 	for paginator.HasMorePages() {
-		page, err := nextListPage(ctx, paginator)
+		page, err := paginator.NextPage(ctx)
 		if err != nil {
 			return nil, err
 		}
@@ -243,26 +235,6 @@ func (c *Client) ListObjects(ctx context.Context, prefix string) ([]string, erro
 	return keys, nil
 }
 
-// nextListPage fetches the next page of a listing. The SDK paginator takes
-// a page marked truncated without a continuation token for the last page
-// and stops without an error, so such a page is ErrNoContinuationToken
-// here instead.
-func nextListPage(
-	ctx context.Context, paginator *s3.ListObjectsV2Paginator,
-) (*s3.ListObjectsV2Output, error) {
-	page, err := paginator.NextPage(ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	truncated := aws.ToBool(page.IsTruncated)
-	if truncated && aws.ToString(page.NextContinuationToken) == "" {
-		return nil, ErrNoContinuationToken
-	}
-
-	return page, nil
-}
-
 // HeadObject checks if an object exists in S3.
 // Returns true if the object exists, false otherwise.
 // The key is automatically prefixed with the configured prefix.
@@ -303,10 +275,7 @@ func IsNotFound(err error) bool {
 type ObjectInfo struct {
 	Key  string
 	Size int64
-	// ModTime is the object's LastModified time. Only ListObjectsStream
+	Err  error
-	// sets it.
-	ModTime time.Time
-	Err     error
 }
 
 // ListObjectsStream lists objects with the given prefix and returns a channel.
@@ -331,7 +300,7 @@ func (c *Client) ListObjectsStream(
 		})
 
 		for paginator.HasMorePages() {
-			page, err := nextListPage(ctx, paginator)
+			page, err := paginator.NextPage(ctx)
 			if err != nil {
 				ch <- ObjectInfo{Err: err}
 
@@ -347,9 +316,8 @@ func (c *Client) ListObjectsStream(
 					}
 
 					ch <- ObjectInfo{
-						Key:     key,
+						Key:  key,
-						Size:    *obj.Size,
+						Size: *obj.Size,
-						ModTime: aws.ToTime(obj.LastModified),
 					}
 				}
 			}

internal/snapshot/blob_temp_file_test.go

@@ -1,62 +0,0 @@
-//nolint:testpackage // exercises the unexported cleanupBlobTempFile
-package snapshot
-
-import (
-	"errors"
-	"os"
-	"testing"
-
-	"github.com/spf13/afero"
-	"sneak.berlin/go/vaultik/internal/blob"
-)
-
-// A blob temp file that cannot be closed or removed must make the cleanup
-// return an error, not end the process.
-func TestCleanupBlobTempFileReturnsErrors(t *testing.T) {
-	t.Parallel()
-
-	fs := afero.NewOsFs()
-	s := &Scanner{fs: fs}
-
-	tests := []struct {
-		name string
-		// prepare runs before the cleanup and makes its close or remove
-		// fail.
-		prepare func(tempFile afero.File) error
-		want    error
-	}{
-		{
-			name:    "close fails",
-			prepare: func(tempFile afero.File) error { return tempFile.Close() },
-			want:    os.ErrClosed,
-		},
-		{
-			name: "remove fails",
-			prepare: func(tempFile afero.File) error {
-				return fs.Remove(tempFile.Name())
-			},
-			want: os.ErrNotExist,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			t.Parallel()
-
-			tempFile, err := afero.TempFile(fs, t.TempDir(), "blob-*.tmp")
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			err = tt.prepare(tempFile)
-			if err != nil {
-				t.Fatal(err)
-			}
-
-			err = s.cleanupBlobTempFile(&blob.WithReader{TempFile: tempFile})
-			if !errors.Is(err, tt.want) {
-				t.Fatalf("expected an error wrapping %v, got: %v", tt.want, err)
-			}
-		})
-	}
-}

internal/snapshot/device_number_test.go

@@ -1,40 +0,0 @@
-//nolint:testpackage // exercises the unexported deviceNumberFromStat
-package snapshot
-
-import (
-	"os"
-	"path/filepath"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-// The device number a real backup reads is the same for a directory and
-// a file in it, and differs between the temp directory and /dev.
-// Without it no mount point is ever found. See
-// https://git.eeqj.de/sneak/vaultik/issues/395.
-func TestDeviceNumberFromStat(t *testing.T) {
-	t.Parallel()
-
-	dir := t.TempDir()
-	file := filepath.Join(dir, "file.txt")
-	require.NoError(t, os.WriteFile(file, nil, 0o600))
-
-	deviceOf := func(path string) uint64 {
-		t.Helper()
-
-		info, err := os.Stat(path)
-		require.NoError(t, err)
-
-		device, ok := deviceNumberFromStat(info)
-		require.True(t, ok, "no device number read for %s", path)
-
-		return device
-	}
-
-	assert.Equal(t, deviceOf(dir), deviceOf(file))
-
-	// /dev is a different filesystem from the temp dir on Linux, macOS and in Docker.
-	assert.NotEqual(t, deviceOf(dir), deviceOf("/dev"))
-}

internal/snapshot/exclude_test.go

@@ -531,101 +531,3 @@ func TestExcludePatterns_UnanchoredPatternFile(t *testing.T) {
 	require.Equal(t, 1, result.FilesScanned,
 		"Unanchored pattern for file should match anywhere")
 }
-
-func TestExcludePatterns_DoubleStarDirectoryAtEveryDepth(t *testing.T) {
-	t.Parallel()
-
-	// As in gitignore, a leading **/ also matches directly under the source dir
-	fs := setupAnchoredTestFS(t)
-
-	scanner, repos, cleanup := createTestScanner(t, fs, []string{"**/projectname"})
-	defer cleanup()
-
-	ctx := context.Background()
-	createSnapshotRecord(ctx, t, repos, "test-snapshot")
-
-	result, err := scanner.Scan(ctx, "/backup", "test-snapshot")
-	require.NoError(t, err)
-
-	// **/projectname should exclude BOTH:
-	// - /backup/projectname/file.txt
-	// - /backup/otherproject/projectname/file.txt
-	// Total files: 4, excluded: 2
-	require.Equal(t, 2, result.FilesScanned,
-		"**/ directory pattern should match at the top level and nested")
-}
-
-func TestExcludePatterns_DoubleStarFileAtEveryDepth(t *testing.T) {
-	t.Parallel()
-
-	// As in gitignore, a leading **/ also matches directly under the source dir
-	fs := setupAnchoredTestFS(t)
-
-	scanner, repos, cleanup := createTestScanner(t, fs, []string{"**/*.txt"})
-	defer cleanup()
-
-	ctx := context.Background()
-	createSnapshotRecord(ctx, t, repos, "test-snapshot")
-
-	result, err := scanner.Scan(ctx, "/backup", "test-snapshot")
-	require.NoError(t, err)
-
-	// **/*.txt should exclude ALL .txt files:
-	// - /backup/file.txt
-	// - /backup/projectname/file.txt
-	// - /backup/otherproject/projectname/file.txt
-	// Total files: 4, excluded: 3
-	require.Equal(t, 1, result.FilesScanned,
-		"**/ file pattern should match at the top level and nested")
-}
-
-func TestExcludePatterns_AnchoredDoubleStarAtEveryDepth(t *testing.T) {
-	t.Parallel()
-
-	// As in gitignore, /**/ also matches directly under the source dir
-	fs := setupAnchoredTestFS(t)
-
-	scanner, repos, cleanup := createTestScanner(t, fs, []string{"/**/projectname"})
-	defer cleanup()
-
-	ctx := context.Background()
-	createSnapshotRecord(ctx, t, repos, "test-snapshot")
-
-	result, err := scanner.Scan(ctx, "/backup", "test-snapshot")
-	require.NoError(t, err)
-
-	// /**/projectname should exclude BOTH:
-	// - /backup/projectname/file.txt
-	// - /backup/otherproject/projectname/file.txt
-	// Total files: 4, excluded: 2
-	require.Equal(t, 2, result.FilesScanned,
-		"/**/ pattern should match at the top level and nested")
-}
-
-func TestExcludePatterns_DoubleStarInMiddleMatchesZeroDirectories(t *testing.T) {
-	t.Parallel()
-
-	// As in gitignore, a/**/b matches a/b as well as a/c/b. The last part
-	// is a glob: with a plain name the glob library already matched a/b.
-	fs := &afero.MemMapFs{}
-	files := []string{"/backup/a/x.log", "/backup/a/c/y.log", "/backup/a/c/kept.txt"}
-
-	for _, path := range files {
-		require.NoError(t, fs.MkdirAll(filepath.Dir(path), 0755))
-		require.NoError(t, afero.WriteFile(fs, path, []byte(path), 0644))
-	}
-
-	scanner, repos, cleanup := createTestScanner(t, fs, []string{"a/**/*.log"})
-	defer cleanup()
-
-	ctx := context.Background()
-	createSnapshotRecord(ctx, t, repos, "test-snapshot")
-
-	result, err := scanner.Scan(ctx, "/backup", "test-snapshot")
-	require.NoError(t, err)
-
-	// a/**/*.log should exclude /backup/a/x.log and /backup/a/c/y.log
-	// Total files: 3, excluded: 2
-	require.Equal(t, 1, result.FilesScanned,
-		"a/**/*.log should match a/x.log as well as a/c/y.log")
-}

internal/snapshot/module.go

@@ -1,8 +1,6 @@
 package snapshot
 
 import (
-	"os"
-
 	"github.com/spf13/afero"
 	"go.uber.org/fx"
 	"sneak.berlin/go/vaultik/internal/config"
@@ -18,12 +16,6 @@ type ScannerParams struct {
 	Fs             afero.Fs
 	Exclude        []string // Exclude patterns (combined global + snapshot-specific)
 	SkipErrors     bool     // Skip file read errors (log loudly but continue)
-	// PreviousSnapshotID is the most recent completed snapshot of the
-	// same name, "" for none.
-	PreviousSnapshotID string
-	// DeviceNumber is ScannerConfig.DeviceNumber; nil reads it from the
-	// file's stat.
-	DeviceNumber func(info os.FileInfo) (uint64, bool)
 }
 
 // Module exports backup functionality as an fx module.
@@ -52,19 +44,17 @@ func provideScannerFactory(
 		}
 
 		return NewScanner(ScannerConfig{
-			FS:                 params.Fs,
+			FS:               params.Fs,
-			ChunkSize:          cfg.ChunkSize.Int64(),
+			ChunkSize:        cfg.ChunkSize.Int64(),
-			Repositories:       repos,
+			Repositories:     repos,
-			Storage:            storer,
+			Storage:          storer,
-			MaxBlobSize:        cfg.BlobSizeLimit.Int64(),
+			MaxBlobSize:      cfg.BlobSizeLimit.Int64(),
-			CompressionLevel:   cfg.CompressionLevel,
+			CompressionLevel: cfg.CompressionLevel,
-			AgeRecipients:      cfg.AgeRecipients,
+			AgeRecipients:    cfg.AgeRecipients,
-			EnableProgress:     params.EnableProgress,
+			EnableProgress:   params.EnableProgress,
-			UI:                 params.UI,
+			UI:               params.UI,
-			Exclude:            excludes,
+			Exclude:          excludes,
-			SkipErrors:         params.SkipErrors,
+			SkipErrors:       params.SkipErrors,
-			PreviousSnapshotID: params.PreviousSnapshotID,
-			DeviceNumber:       params.DeviceNumber,
 		})
 	}
 }

internal/snapshot/mount_point_test.go

@@ -1,245 +0,0 @@
-package snapshot_test
-
-import (
-	"context"
-	"os"
-	"path/filepath"
-	"slices"
-	"strings"
-	"syscall"
-	"testing"
-
-	"github.com/spf13/afero"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/database"
-	"sneak.berlin/go/vaultik/internal/snapshot"
-)
-
-// A scan records with the snapshot each directory on a different device
-// from its parent directory that the walk found an entry in, as a mount
-// point is, the scanned path included. A filesystem that gives no device
-// numbers, as the in-memory one, records none. See
-// https://git.eeqj.de/sneak/vaultik/issues/395.
-func TestScanRecordsMountPoints(t *testing.T) {
-	t.Parallel()
-
-	const (
-		scannedPath = "/data/source"
-		snapshotID  = "mount-points"
-	)
-
-	tests := []struct {
-		name string
-		// onVolume names the directories on the volume's device; every
-		// other directory is on another one. nil leaves the device
-		// numbers to the in-memory filesystem, which has none.
-		onVolume []string
-		want     []string
-	}{
-		{
-			name:     "volume below the scanned path",
-			onVolume: []string{"nas"},
-			want:     []string{scannedPath + "/nas"},
-		},
-		{
-			name:     "volume at the scanned path",
-			onVolume: []string{"source", "nas"},
-			want:     []string{scannedPath},
-		},
-		{name: "no device numbers", want: nil},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			t.Parallel()
-
-			ctx := context.Background()
-			fs := afero.NewMemMapFs()
-
-			for _, path := range []string{
-				scannedPath + "/notes.txt", scannedPath + "/nas/a.txt",
-			} {
-				require.NoError(t, fs.MkdirAll(filepath.Dir(path), 0o755))
-				require.NoError(t, afero.WriteFile(fs, path, []byte(path), 0o644))
-			}
-
-			db, err := database.NewTestDB()
-			require.NoError(t, err)
-			t.Cleanup(func() { _ = db.Close() })
-
-			repos := database.NewRepositories(db)
-			createTestSnapshotRecord(ctx, t, repos, snapshotID)
-
-			cfg := snapshot.ScannerConfig{
-				FS:               fs,
-				ChunkSize:        int64(1024 * 16),
-				Repositories:     repos,
-				MaxBlobSize:      int64(1024 * 1024),
-				CompressionLevel: 3,
-				AgeRecipients:    []string{testAgePublicKey},
-			}
-			if tt.onVolume != nil {
-				cfg.DeviceNumber = func(info os.FileInfo) (uint64, bool) {
-					if slices.Contains(tt.onVolume, info.Name()) {
-						return 2, true
-					}
-
-					return 1, true
-				}
-			}
-
-			_, err = snapshot.NewScanner(cfg).Scan(ctx, scannedPath, snapshotID)
-			require.NoError(t, err)
-
-			got, err := repos.Snapshots.GetMountPoints(ctx, snapshotID)
-			require.NoError(t, err)
-			assert.Equal(t, tt.want, got)
-		})
-	}
-}
-
-// automountFs is an in-memory filesystem with a volume at mountPoint
-// that is mounted on first access: opening mountPoint to list it mounts
-// the volume or, if it cannot be mounted, fails with "no such file or
-// directory", as with the autofs daemon. Stat records the device an
-// entry is on at that moment, as a real stat does: unmountedDevice for
-// mountPoint until the volume is mounted; the volume's, 2, for
-// mountPoint once it is and for everything in it; 1 for everything else.
-type automountFs struct {
-	afero.Fs
-
-	mountPoint      string
-	unmountedDevice uint64
-	canMount        bool
-	mounted         bool
-}
-
-//nolint:ireturn // afero.Fs.Open is defined to return the interface.
-func (fs *automountFs) Open(name string) (afero.File, error) {
-	if name == fs.mountPoint && !fs.canMount {
-		return nil, &os.PathError{Op: "open", Path: name, Err: syscall.ENOENT}
-	}
-
-	if name == fs.mountPoint {
-		fs.mounted = true
-	}
-
-	return fs.Fs.Open(name)
-}
-
-func (fs *automountFs) Stat(name string) (os.FileInfo, error) {
-	info, err := fs.Fs.Stat(name)
-	if err != nil {
-		return nil, err
-	}
-
-	device := uint64(1)
-
-	switch {
-	case name == fs.mountPoint && !fs.mounted:
-		device = fs.unmountedDevice
-	case name == fs.mountPoint || strings.HasPrefix(name, fs.mountPoint+"/"):
-		device = 2
-	}
-
-	return statWithDevice{FileInfo: info, device: device}, nil
-}
-
-// statWithDevice is an entry automountFs.Stat looked up, with the device
-// it was on then.
-type statWithDevice struct {
-	os.FileInfo
-
-	device uint64
-}
-
-// deviceAtLookup returns the device automountFs.Stat recorded for info.
-func deviceAtLookup(info os.FileInfo) (uint64, bool) {
-	stat, ok := info.(statWithDevice)
-
-	return stat.device, ok
-}
-
-// A volume mounted on first access is mounted when the walk lists its
-// mount point. Until then the mount point is on the automounter's own
-// device (a systemd automount) or on its parent's (an autofs map that
-// shows its mount points before mounting them). Either way only the
-// mount point is recorded, by the backup that mounts the volume and by a
-// later one that finds it mounted. Listing an automount point whose
-// volume cannot be mounted fails; it is not recorded, because the walk
-// finds no entry in it. See https://git.eeqj.de/sneak/vaultik/issues/395.
-func TestScanRecordsOnlyTheMountPointOfAnAutomountedVolume(t *testing.T) {
-	t.Parallel()
-
-	const scannedPath = "/data/source"
-
-	mountPoint := scannedPath + "/nas"
-
-	tests := []struct {
-		name            string
-		unmountedDevice uint64
-		canMount        bool
-		want            []string
-	}{
-		{
-			name:            "on the automounter's device until listed",
-			unmountedDevice: 3, canMount: true, want: []string{mountPoint},
-		},
-		{
-			name:            "on its parent's device until listed",
-			unmountedDevice: 1, canMount: true, want: []string{mountPoint},
-		},
-		{
-			name:            "volume that cannot be mounted",
-			unmountedDevice: 1, canMount: false, want: nil,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			t.Parallel()
-
-			ctx := context.Background()
-			fs := &automountFs{
-				Fs: afero.NewMemMapFs(), mountPoint: mountPoint,
-				unmountedDevice: tt.unmountedDevice, canMount: tt.canMount,
-			}
-
-			require.NoError(t, fs.MkdirAll(mountPoint+"/photos", 0o755))
-
-			for _, path := range []string{
-				scannedPath + "/notes.txt", mountPoint + "/photos/a.jpg",
-			} {
-				require.NoError(t, afero.WriteFile(fs, path, []byte(path), 0o644))
-			}
-
-			db, err := database.NewTestDB()
-			require.NoError(t, err)
-			t.Cleanup(func() { _ = db.Close() })
-
-			repos := database.NewRepositories(db)
-
-			for _, snapshotID := range []string{"first", "later"} {
-				createTestSnapshotRecord(ctx, t, repos, snapshotID)
-
-				scanner := snapshot.NewScanner(snapshot.ScannerConfig{
-					FS:               fs,
-					ChunkSize:        int64(1024 * 16),
-					Repositories:     repos,
-					MaxBlobSize:      int64(1024 * 1024),
-					CompressionLevel: 3,
-					AgeRecipients:    []string{testAgePublicKey},
-					DeviceNumber:     deviceAtLookup,
-				})
-
-				_, err = scanner.Scan(ctx, scannedPath, snapshotID)
-				require.NoError(t, err)
-
-				got, err := repos.Snapshots.GetMountPoints(ctx, snapshotID)
-				require.NoError(t, err)
-				assert.Equal(t, tt.want, got, "mount points of the %s backup", snapshotID)
-			}
-		})
-	}
-}

internal/snapshot/progress.go

@@ -56,27 +56,23 @@ const (
 
 // ProgressStats holds atomic counters for progress tracking
 type ProgressStats struct {
-	FilesScanned   atomic.Int64 // Total files seen during scan (includes skipped)
+	FilesScanned     atomic.Int64 // Total files seen during scan (includes skipped)
-	FilesProcessed atomic.Int64 // Files actually processed in phase 2
+	FilesProcessed   atomic.Int64 // Files actually processed in phase 2
-	FilesSkipped   atomic.Int64 // Files skipped due to no changes
+	FilesSkipped     atomic.Int64 // Files skipped due to no changes
-	BytesScanned   atomic.Int64 // Bytes from new/changed files only
+	BytesScanned     atomic.Int64 // Bytes from new/changed files only
-	BytesSkipped   atomic.Int64 // Bytes from unchanged files
+	BytesSkipped     atomic.Int64 // Bytes from unchanged files
-	BytesProcessed atomic.Int64 // Actual bytes processed (for ETA calculation)
+	BytesProcessed   atomic.Int64 // Actual bytes processed (for ETA calculation)
-	ChunksCreated  atomic.Int64
+	ChunksCreated    atomic.Int64
-	BlobsCreated   atomic.Int64
+	BlobsCreated     atomic.Int64
-	BlobsUploaded  atomic.Int64
+	BlobsUploaded    atomic.Int64
-	BytesUploaded  atomic.Int64
+	BytesUploaded    atomic.Int64
-	CurrentFile    atomic.Value // stores string
+	CurrentFile      atomic.Value // stores string
-	TotalSize      atomic.Int64 // Size to process in the paths scanned so far
+	TotalSize        atomic.Int64 // Total size to process (set after scan phase)
-	TotalFiles     atomic.Int64 // Files to process in the paths scanned so far
+	TotalFiles       atomic.Int64 // Total files to process in phase 2
-	StartTime      time.Time
+	ProcessStartTime atomic.Value // stores time.Time when processing starts
-	mu             sync.RWMutex
+	StartTime        time.Time
-	lastDetailTime time.Time
+	mu               sync.RWMutex
-
+	lastDetailTime   time.Time
-	// Guarded by mu: when the last scan phase ended, and
-	// BytesProcessed at that moment.
-	processStartTime  time.Time
-	processStartBytes int64
 
 	// Upload tracking
 	CurrentUpload    atomic.Value // stores *UploadInfo
@@ -152,36 +148,10 @@ func (pr *ProgressReporter) GetStats() *ProgressStats {
 	return pr.stats
 }
 
-// AddTotalSize adds the size one path of the snapshot has to process to
+// SetTotalSize sets the total size to process (after scan phase)
-// the total, once that path's scan phase is done, and starts measuring
+func (pr *ProgressReporter) SetTotalSize(size int64) {
-// the processing rate again. The processed counts run across every path,
+	pr.stats.TotalSize.Store(size)
-// so the total does too. Restarting the rate keeps a path's scan phase,
+	pr.stats.ProcessStartTime.Store(time.Now().UTC())
-// which processes nothing, out of the rate while that path is processed.
-// During a later path's scan phase the rate is still the previous
-// path's, and falls as that scan goes on.
-func (pr *ProgressReporter) AddTotalSize(size int64) {
-	pr.stats.TotalSize.Add(size)
-
-	pr.stats.mu.Lock()
-	defer pr.stats.mu.Unlock()
-
-	pr.stats.processStartTime = time.Now().UTC()
-	pr.stats.processStartBytes = pr.stats.BytesProcessed.Load()
-}
-
-// processRate returns the bytes processed per second since the last scan
-// phase ended, or 0 before the first path's scan phase is done.
-func (s *ProgressStats) processRate() float64 {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-
-	if s.processStartTime.IsZero() {
-		return 0
-	}
-
-	processed := s.BytesProcessed.Load() - s.processStartBytes
-
-	return float64(processed) / time.Since(s.processStartTime).Seconds()
 }
 
 // Helper functions
@@ -387,12 +357,19 @@ func (pr *ProgressReporter) printSummaryStatus() {
 	// Calculate ETA if we have total size and are processing
 	etaStr := ""
 
-	processRate := pr.stats.processRate()
+	if totalSize > 0 && bytesProcessed > 0 {
-	if totalSize > 0 && processRate > 0 {
+		processStart, ok := pr.stats.ProcessStartTime.Load().(time.Time)
-		remainingBytes := totalSize - bytesProcessed
+		if ok && !processStart.IsZero() {
-		remainingSeconds := float64(remainingBytes) / processRate
+			processElapsed := time.Since(processStart)
-		eta := time.Duration(remainingSeconds * float64(time.Second))
+
-		etaStr = " | ETA: " + formatDuration(eta)
+			rate := float64(bytesProcessed) / processElapsed.Seconds()
+			if rate > 0 {
+				remainingBytes := totalSize - bytesProcessed
+				remainingSeconds := float64(remainingBytes) / rate
+				eta := time.Duration(remainingSeconds * float64(time.Second))
+				etaStr = " | ETA: " + formatDuration(eta)
+			}
+		}
 	}
 
 	rate := float64(bytesScanned+bytesSkipped) / elapsed.Seconds()
@@ -444,18 +421,25 @@ func (pr *ProgressReporter) printDetailedStatus() {
 	log.Info("Elapsed time", "duration", formatDuration(elapsed))
 
 	// Calculate and show ETA if we have data
-	processRate := pr.stats.processRate()
+	if totalSize > 0 && bytesProcessed > 0 {
-	if totalSize > 0 && processRate > 0 {
+		processStart, ok := pr.stats.ProcessStartTime.Load().(time.Time)
-		remainingBytes := totalSize - bytesProcessed
+		if ok && !processStart.IsZero() {
-		remainingSeconds := float64(remainingBytes) / processRate
+			processElapsed := time.Since(processStart)
-		eta := time.Duration(remainingSeconds * float64(time.Second))
+
-		percentComplete := float64(bytesProcessed) / float64(totalSize) * percentScale
+			processRate := float64(bytesProcessed) / processElapsed.Seconds()
-		log.Info("Overall progress",
+			if processRate > 0 {
-			"percent", fmt.Sprintf("%.1f%%", percentComplete),
+				remainingBytes := totalSize - bytesProcessed
-			"processed", humanize.Bytes(safeUint64(bytesProcessed)),
+				remainingSeconds := float64(remainingBytes) / processRate
-			"total", humanize.Bytes(safeUint64(totalSize)),
+				eta := time.Duration(remainingSeconds * float64(time.Second))
-			"rate", humanize.Bytes(uint64(processRate))+"/s",
+				percentComplete := float64(bytesProcessed) / float64(totalSize) * percentScale
-			"eta", formatDuration(eta))
+				log.Info("Overall progress",
+					"percent", fmt.Sprintf("%.1f%%", percentComplete),
+					"processed", humanize.Bytes(safeUint64(bytesProcessed)),
+					"total", humanize.Bytes(safeUint64(totalSize)),
+					"rate", humanize.Bytes(uint64(processRate))+"/s",
+					"eta", formatDuration(eta))
+			}
+		}
 	}
 
 	log.Info("Files processed",

internal/snapshot/progress_rate_test.go

@@ -1,54 +0,0 @@
-//nolint:testpackage // exercises the unexported processRate helper
-package snapshot
-
-import (
-	"testing"
-	"time"
-)
-
-// TestProcessRateNotLoweredByLaterScanPhase feeds the reporter two paths
-// that each take 10 seconds to process, the second after a 30-second scan
-// phase. That scan phase processes nothing, so the rate while the second
-// path is processed must be that path's own.
-func TestProcessRateNotLoweredByLaterScanPhase(t *testing.T) {
-	t.Parallel()
-
-	const (
-		pathSize       = 1000
-		processingTime = 10 * time.Second
-		scanTime       = 30 * time.Second
-	)
-
-	// Never started, but Stop releases its tickers and signal handler.
-	progress := NewProgressReporter()
-	defer progress.Stop()
-
-	stats := progress.GetStats()
-
-	// Moves the processing start time back instead of sleeping.
-	elapse := func(d time.Duration) {
-		stats.mu.Lock()
-		defer stats.mu.Unlock()
-
-		stats.processStartTime = stats.processStartTime.Add(-d)
-	}
-
-	progress.AddTotalSize(pathSize)
-	stats.BytesProcessed.Add(pathSize)
-	elapse(processingTime)
-
-	elapse(scanTime)
-	progress.AddTotalSize(pathSize)
-	stats.BytesProcessed.Add(pathSize)
-	elapse(processingTime)
-
-	want := pathSize / processingTime.Seconds()
-	got := stats.processRate()
-
-	// The test's own run time adds to the elapsed time, so got is a hair
-	// under want.
-	if got > want || got < want*0.99 {
-		t.Errorf("rate while the second path is processed is %.1f bytes/s, "+
-			"want %.1f", got, want)
-	}
-}

internal/snapshot/progress_test.go

@@ -1,93 +0,0 @@
-package snapshot_test
-
-import (
-	"context"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/spf13/afero"
-	"sneak.berlin/go/vaultik/internal/database"
-	"sneak.berlin/go/vaultik/internal/snapshot"
-)
-
-// TestProgressPercentWithSecondPathSmaller backs up two paths with one
-// scanner, as a snapshot with two paths does, the second path smaller
-// than the first. The progress line divides the bytes processed by the
-// total size, so both must count both paths to stay within 100%.
-func TestProgressPercentWithSecondPathSmaller(t *testing.T) {
-	t.Parallel()
-
-	fs := afero.NewMemMapFs()
-	files := map[string]string{
-		"/large/one.txt":   strings.Repeat("1", 4000),
-		"/large/two.txt":   strings.Repeat("2", 4000),
-		"/small/three.txt": strings.Repeat("3", 1000),
-	}
-
-	for path, content := range files {
-		err := fs.MkdirAll(filepath.Dir(path), 0755)
-		if err != nil {
-			t.Fatalf("mkdir: %v", err)
-		}
-
-		err = afero.WriteFile(fs, path, []byte(content), 0644)
-		if err != nil {
-			t.Fatalf("write %s: %v", path, err)
-		}
-	}
-
-	db, err := database.NewTestDB()
-	if err != nil {
-		t.Fatalf("create test db: %v", err)
-	}
-
-	t.Cleanup(func() {
-		cerr := db.Close()
-		if cerr != nil {
-			t.Errorf("close db: %v", cerr)
-		}
-	})
-
-	repos := database.NewRepositories(db)
-
-	scanner := snapshot.NewScanner(snapshot.ScannerConfig{
-		FS:               fs,
-		ChunkSize:        int64(1024 * 16),
-		Repositories:     repos,
-		MaxBlobSize:      int64(1024 * 1024),
-		CompressionLevel: 3,
-		AgeRecipients:    []string{testAgePublicKey},
-		EnableProgress:   true,
-	})
-
-	// Never started, but Stop releases its tickers and signal handler.
-	progress := scanner.GetProgress()
-	defer progress.Stop()
-
-	ctx := context.Background()
-	snapshotID := "test-snapshot-progress"
-	createTestSnapshotRecord(ctx, t, repos, snapshotID)
-
-	for _, path := range []string{"/large", "/small"} {
-		_, err := scanner.Scan(ctx, path, snapshotID)
-		if err != nil {
-			t.Fatalf("scanning %s: %v", path, err)
-		}
-	}
-
-	stats := progress.GetStats()
-
-	// With both paths counted, the percentage must not exceed 100%.
-	percent := float64(stats.BytesProcessed.Load()) /
-		float64(stats.TotalSize.Load()) * 100
-	if percent > 100 {
-		t.Errorf("progress after both paths is %.1f%%, want at most 100%%",
-			percent)
-	}
-
-	if stats.FilesProcessed.Load() != stats.TotalFiles.Load() {
-		t.Errorf("progress after both paths is %d of %d files, want all",
-			stats.FilesProcessed.Load(), stats.TotalFiles.Load())
-	}
-}

internal/snapshot/scanner_estimate_test.go

@@ -1,28 +0,0 @@
-//nolint:testpackage // exercises the unexported countNonDirectories helper
-package snapshot
-
-import (
-	"os"
-	"testing"
-
-	"sneak.berlin/go/vaultik/internal/database"
-)
-
-// The walk counts regular files and symlinks, not directories, so the
-// estimate of its count made from the local index's records leaves the
-// directories out. See https://git.eeqj.de/sneak/vaultik/issues/305.
-func TestCountNonDirectories(t *testing.T) {
-	t.Parallel()
-
-	known := map[string]*database.File{
-		"/src":       {Mode: uint32(os.ModeDir | 0o755)},
-		"/src/sub":   {Mode: uint32(os.ModeDir | 0o755)},
-		"/src/a.txt": {Mode: 0o644},
-		"/src/link":  {Mode: uint32(os.ModeSymlink | 0o777), LinkTarget: "a.txt"},
-	}
-
-	got := countNonDirectories(known)
-	if got != 2 {
-		t.Errorf("countNonDirectories = %d, want 2", got)
-	}
-}

internal/snapshot/skip_errors_test.go

@@ -82,32 +82,6 @@ func (f *readFailFs) Open(name string) (afero.File, error) {
 	return file, nil
 }
 
-// cancelOnOpenFs cancels the run when the scanner opens the target file to
-// back it up, as Ctrl-C partway through processing would, and records each
-// file opened after that.
-type cancelOnOpenFs struct {
-	afero.Fs
-
-	target            string
-	cancel            context.CancelFunc
-	cancelled         bool
-	openedAfterCancel []string
-}
-
-//nolint:ireturn // afero.Fs.Open is defined to return the interface.
-func (f *cancelOnOpenFs) Open(name string) (afero.File, error) {
-	if f.cancelled {
-		f.openedAfterCancel = append(f.openedAfterCancel, name)
-	}
-
-	if name == f.target {
-		f.cancel()
-		f.cancelled = true
-	}
-
-	return f.Fs.Open(name)
-}
-
 // linkRemovedAfterLstatFs is the real filesystem, except that the symlink at
 // target is removed right after the walk lstats it, as happens when a link is
 // deleted during a backup. The scanner's readlink of it then fails.
@@ -154,16 +128,15 @@ func writeSkipErrorTestFile(t *testing.T, fs afero.Fs, path, content string) {
 	}
 }
 
-// runSkipErrorScan scans source on fs under ctx with the given skip-errors
+// runSkipErrorScan scans source on fs with the given skip-errors setting,
-// setting, printing user-facing messages to uiw (nil discards them), and
+// printing user-facing messages to uiw (nil discards them), and returns the
-// returns the repositories (for inspection) and the scan error.
+// repositories (for inspection) and the scan error.
 func runSkipErrorScan(
-	ctx context.Context, t *testing.T, fs afero.Fs, source string,
+	t *testing.T, fs afero.Fs, source string, skipErrors bool, uiw *ui.Writer,
-	skipErrors bool, uiw *ui.Writer,
 ) (*database.Repositories, error) {
 	t.Helper()
 
-	db, err := database.New(ctx, ":memory:")
+	db, err := database.NewTestDB()
 	if err != nil {
 		t.Fatalf("create test db: %v", err)
 	}
@@ -188,6 +161,7 @@ func runSkipErrorScan(
 		SkipErrors:       skipErrors,
 	})
 
+	ctx := context.Background()
 	snapshotID := "test-snapshot-skip-errors"
 	createTestSnapshotRecord(ctx, t, repos, snapshotID)
 
@@ -211,7 +185,7 @@ func TestScannerPackingFailureAbortsUnderSkipErrors(t *testing.T) {
 	writeSkipErrorTestFile(t, fs, "/source/file1.txt", "first file content")
 	writeSkipErrorTestFile(t, fs, "/source/file2.txt", "second file content")
 
-	repos, err := runSkipErrorScan(context.Background(), t, fs, "/source", true, nil)
+	repos, err := runSkipErrorScan(t, fs, "/source", true, nil)
 	if err == nil {
 		t.Fatal("expected scan to abort on the packer error, got nil")
 	}
@@ -238,7 +212,7 @@ func TestScannerReadErrorAbortsWithoutSkipErrors(t *testing.T) {
 	fs := &readFailFs{Fs: afero.NewMemMapFs(), target: target}
 	writeSkipErrorTestFile(t, fs, target, "content that cannot be read")
 
-	_, err := runSkipErrorScan(context.Background(), t, fs, "/source", false, nil)
+	_, err := runSkipErrorScan(t, fs, "/source", false, nil)
 	if err == nil {
 		t.Fatal("expected scan to fail on the read error, got nil")
 	}
@@ -254,7 +228,7 @@ func TestScannerReadErrorSkippedWithSkipErrors(t *testing.T) {
 	fs := &readFailFs{Fs: afero.NewMemMapFs(), target: target}
 	writeSkipErrorTestFile(t, fs, target, "content that cannot be read")
 
-	repos, err := runSkipErrorScan(context.Background(), t, fs, "/source", true, nil)
+	repos, err := runSkipErrorScan(t, fs, "/source", true, nil)
 	if err != nil {
 		t.Fatalf("expected scan to complete with --skip-errors, got %v", err)
 	}
@@ -293,7 +267,7 @@ func TestScannerUnreadableSymlinkAbortsWithoutSkipErrors(t *testing.T) {
 	sourceDir, linkPath := writeSymlinkSource(t)
 	fs := &linkRemovedAfterLstatFs{t: t, target: linkPath}
 
-	_, err := runSkipErrorScan(context.Background(), t, fs, sourceDir, false, nil)
+	_, err := runSkipErrorScan(t, fs, sourceDir, false, nil)
 	if !errors.Is(err, os.ErrNotExist) {
 		t.Fatalf("expected scan to fail on the removed symlink, got %v", err)
 	}
@@ -309,7 +283,7 @@ func TestScannerUnreadableSymlinkSkippedWithSkipErrors(t *testing.T) {
 	fs := &linkRemovedAfterLstatFs{t: t, target: linkPath}
 	uiw := ui.NewWithColor(io.Discard, false)
 
-	repos, err := runSkipErrorScan(context.Background(), t, fs, sourceDir, true, uiw)
+	repos, err := runSkipErrorScan(t, fs, sourceDir, true, uiw)
 	if err != nil {
 		t.Fatalf("expected scan to complete with --skip-errors, got %v", err)
 	}
@@ -328,113 +302,3 @@ func TestScannerUnreadableSymlinkSkippedWithSkipErrors(t *testing.T) {
 		t.Fatalf("expected %s not to be recorded", linkPath)
 	}
 }
-
-// TestScannerCancelStopsSkipErrorsRun checks that a --skip-errors backup
-// cancelled partway through processing returns the cancellation error,
-// opens no further file, and reports no file as failed.
-func TestScannerCancelStopsSkipErrorsRun(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		name          string
-		targetContent string
-	}{
-		// The cancellation lands while the target is being read.
-		{name: "while reading a file", targetContent: "first file content"},
-		// An empty target has no chunks, so the cancellation goes unnoticed
-		// until the run moves on to the next file.
-		{name: "between files", targetContent: ""},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			t.Parallel()
-
-			const target = "/source/a.txt"
-
-			ctx, cancel := context.WithCancel(context.Background())
-			defer cancel()
-
-			fs := &cancelOnOpenFs{
-				Fs: afero.NewMemMapFs(), target: target, cancel: cancel,
-			}
-			writeSkipErrorTestFile(t, fs, target, tt.targetContent)
-			writeSkipErrorTestFile(t, fs, "/source/b.txt", "second file content")
-			writeSkipErrorTestFile(t, fs, "/source/c.txt", "third file content")
-
-			uiw := ui.NewWithColor(io.Discard, false)
-
-			_, err := runSkipErrorScan(ctx, t, fs, "/source", true, uiw)
-			if !errors.Is(err, context.Canceled) {
-				t.Fatalf("expected the cancellation error, got %v", err)
-			}
-
-			if len(fs.openedAfterCancel) != 0 {
-				t.Fatalf("expected no file opened after the cancellation, got %v",
-					fs.openedAfterCancel)
-			}
-
-			if uiw.ErrorCount() != 0 {
-				t.Fatalf("expected no file reported as failed, got %d error lines",
-					uiw.ErrorCount())
-			}
-		})
-	}
-}
-
-// TestScannerRemovesBlobTempFileWhenRunStops checks that a run stopped
-// part-way, by a file it cannot read or by a cancellation, removes the
-// temp file of the blob it was packing.
-func TestScannerRemovesBlobTempFileWhenRunStops(t *testing.T) {
-	t.Parallel()
-
-	// a.txt is backed up first and starts a blob; the run stops at b.txt.
-	const target = "/source/b.txt"
-
-	tests := []struct {
-		name  string
-		newFs func(cancel context.CancelFunc) afero.Fs
-	}{
-		{
-			name: "file cannot be read",
-			newFs: func(context.CancelFunc) afero.Fs {
-				return &readFailFs{Fs: afero.NewMemMapFs(), target: target}
-			},
-		},
-		{
-			name: "cancelled",
-			newFs: func(cancel context.CancelFunc) afero.Fs {
-				return &cancelOnOpenFs{
-					Fs: afero.NewMemMapFs(), target: target, cancel: cancel,
-				}
-			},
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			t.Parallel()
-
-			ctx, cancel := context.WithCancel(context.Background())
-			defer cancel()
-
-			fs := tt.newFs(cancel)
-			writeSkipErrorTestFile(t, fs, "/source/a.txt", "first file content")
-			writeSkipErrorTestFile(t, fs, target, "second file content")
-
-			_, err := runSkipErrorScan(ctx, t, fs, "/source", false, nil)
-			if err == nil {
-				t.Fatal("expected the scan to stop with an error, got nil")
-			}
-
-			left, err := afero.Glob(fs, filepath.Join(os.TempDir(), "vaultik-blob-*"))
-			if err != nil {
-				t.Fatalf("listing blob temp files: %v", err)
-			}
-
-			if len(left) != 0 {
-				t.Fatalf("expected no blob temp file left, got %v", left)
-			}
-		})
-	}
-}

internal/snapshot/snapshot.go

@@ -199,7 +199,6 @@ func (sm *SnapshotManager) UpdateSnapshotStatsExtended(
 			stats.CompressionLevel,
 			stats.BytesUploaded,
 			stats.UploadDurationMs,
-			stats.NewChunkSize,
 		)
 	})
 }
@@ -518,8 +517,8 @@ type CleanupStats struct {
 //
 // The cleanup is performed in a specific order to maintain referential integrity:
 //  1. Delete other snapshots
-//  2. Delete orphaned snapshot associations (snapshot_files, snapshot_blobs,
+//  2. Delete orphaned snapshot associations (snapshot_files, snapshot_blobs)
-//     snapshot_mount_points) for deleted snapshots
+//     for deleted snapshots
 //  3. Delete orphaned files (not in the current snapshot)
 //  4. Delete orphaned chunk-to-file mappings (references to deleted files)
 //  5. Delete orphaned blobs (not in the current snapshot)
@@ -893,7 +892,7 @@ func (sm *SnapshotManager) getFileSize(path string) int64 {
 // BackupStats contains statistics from a backup operation
 type BackupStats struct {
 	FilesScanned  int
-	TotalSize     int64 // Total size of the files in the snapshot
+	TotalSize     int64 // Total size of all files examined
 	ChunksCreated int
 	BlobsCreated  int
 	BytesUploaded int64
@@ -907,7 +906,6 @@ type ExtendedBackupStats struct {
 	BlobUncompressedSize int64 // Total uncompressed size of all referenced blobs
 	CompressionLevel     int   // Compression level used for this snapshot
 	UploadDurationMs     int64 // Total milliseconds spent uploading to S3
-	NewChunkSize         int64 // Total size of the chunks counted in ChunksCreated
 }
 
 // deleteOtherSnapshots deletes all snapshots except the current one
@@ -948,8 +946,8 @@ func (sm *SnapshotManager) deleteOtherSnapshots(
 	return nil
 }
 
-// deleteOrphanedSnapshotAssociations deletes snapshot_files,
+// deleteOrphanedSnapshotAssociations deletes snapshot_files and
-// snapshot_blobs and snapshot_mount_points for deleted snapshots
+// snapshot_blobs for deleted snapshots
 func (sm *SnapshotManager) deleteOrphanedSnapshotAssociations(
 	ctx context.Context, tx *sql.Tx, currentSnapshotID string,
 ) error {
@@ -983,19 +981,6 @@ func (sm *SnapshotManager) deleteOrphanedSnapshotAssociations(
 	log.Debug("[Temp DB Cleanup] Deleted snapshot_blobs associations",
 		"count", rowsAffected)
 
-	// Delete the mount points other snapshots recorded
-	query := "DELETE FROM snapshot_mount_points WHERE snapshot_id != ?"
-	database.LogSQL("Execute", query, currentSnapshotID)
-
-	result, err = tx.ExecContext(ctx, query, currentSnapshotID)
-	if err != nil {
-		return fmt.Errorf("deleting orphaned snapshot_mount_points: %w", err)
-	}
-
-	rowsAffected, _ = result.RowsAffected()
-	log.Debug("[Temp DB Cleanup] Deleted snapshot_mount_points rows",
-		"count", rowsAffected)
-
 	return nil
 }
 

internal/snapshot/snapshot_test.go

@@ -7,14 +7,12 @@ import (
 	"database/sql"
 	"io"
 	"path/filepath"
-	"slices"
 	"testing"
 
 	"github.com/spf13/afero"
 	"sneak.berlin/go/vaultik/internal/config"
 	"sneak.berlin/go/vaultik/internal/database"
 	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/types"
 )
 
 const (
@@ -389,77 +387,6 @@ func TestCleanSnapshotDBNonExistentSnapshot(t *testing.T) {
 	}
 }
 
-// The exported metadata database keeps only the mount points that the
-// exported snapshot recorded. See
-// https://git.eeqj.de/sneak/vaultik/issues/395.
-func TestCleanSnapshotDBKeepsOnlyTheSnapshotsMountPoints(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	dbPath := filepath.Join(t.TempDir(), "export.db")
-
-	db, err := database.New(ctx, dbPath)
-	if err != nil {
-		t.Fatalf("failed to create database: %v", err)
-	}
-
-	repos := database.NewRepositories(db)
-
-	for _, id := range []types.SnapshotID{"exported", "other"} {
-		err = repos.Snapshots.Create(ctx, nil, &database.Snapshot{ID: id})
-		if err != nil {
-			t.Fatalf("failed to create snapshot: %v", err)
-		}
-
-		err = repos.Snapshots.AddMountPoint(ctx, nil, id.String(), "/data/"+id.String())
-		if err != nil {
-			t.Fatalf("failed to add mount point: %v", err)
-		}
-	}
-
-	err = db.Close()
-	if err != nil {
-		t.Fatalf("failed to close database: %v", err)
-	}
-
-	sm := &SnapshotManager{
-		config: &config.Config{
-			CompressionLevel: 3,
-			AgeRecipients:    []string{testAgeRecipient},
-		},
-		fs: afero.NewOsFs(),
-	}
-
-	_, err = sm.cleanSnapshotDB(ctx, dbPath, "exported")
-	if err != nil {
-		t.Fatalf("failed to clean snapshot database: %v", err)
-	}
-
-	cleaned, err := database.New(ctx, dbPath)
-	if err != nil {
-		t.Fatalf("failed to open cleaned database: %v", err)
-	}
-
-	defer func() { _ = cleaned.Close() }()
-
-	cleanedRepos := database.NewRepositories(cleaned)
-
-	for id, want := range map[string][]string{
-		"exported": {"/data/exported"},
-		"other":    nil,
-	} {
-		got, err := cleanedRepos.Snapshots.GetMountPoints(ctx, id)
-		if err != nil {
-			t.Fatalf("failed to read mount points: %v", err)
-		}
-
-		if !slices.Equal(got, want) {
-			t.Errorf("mount points of %s: got %v, want %v", id, got, want)
-		}
-	}
-}
-
 // Two creates of one snapshot name back to back start within one second,
 // the resolution of the timestamp in a snapshot ID. See
 // https://git.eeqj.de/sneak/vaultik/issues/270.

internal/storage/conformance_test.go

@@ -8,7 +8,6 @@ import (
 	"reflect"
 	"sort"
 	"testing"
-	"time"
 
 	"sneak.berlin/go/vaultik/internal/storage"
 )
@@ -20,17 +19,15 @@ import (
 // constructor, so the contract is defined once.
 //
 // It exercises the public Storer interface: round-trip, stat, list with
-// prefix filtering, the modification time ListStream reports, overwrite,
+// prefix filtering, overwrite, delete, delete-of-missing, and not-found on
-// delete, delete-of-missing, and not-found on Get and Stat. Each section
+// Get and Stat. Each section takes its own fresh backend instance, so the
-// takes its own fresh backend instance, so the order of sections never
+// order of sections never matters and no section sees another's objects.
-// matters and no section sees another's objects.
 func runStorerConformance(t *testing.T, newStorer func(*testing.T) storage.Storer) {
 	t.Helper()
 
 	conformanceRoundTrip(t, newStorer(t))
 	conformanceOverwrite(t, newStorer(t))
 	conformanceList(t, newStorer(t))
-	conformanceListStreamModTime(t, newStorer(t))
 	conformanceDelete(t, newStorer(t))
 	conformanceNotFound(t, newStorer(t))
 }
@@ -121,35 +118,6 @@ func conformanceList(t *testing.T, s storage.Storer) {
 	}
 }
 
-// conformanceListStreamModTime checks that ListStream gives an object
-// just written a modification time of about now, which prune compares
-// with its grace period.
-func conformanceListStreamModTime(t *testing.T, s storage.Storer) {
-	t.Helper()
-
-	ctx := context.Background()
-
-	err := s.Put(ctx, "blobs/dd/written-now", bytes.NewReader([]byte("data")))
-	if err != nil {
-		t.Fatalf("Put: %v", err)
-	}
-
-	var listed []storage.ObjectInfo
-
-	for info := range s.ListStream(ctx, "blobs/") {
-		listed = append(listed, info)
-	}
-
-	if len(listed) != 1 || listed[0].Err != nil {
-		t.Fatalf("ListStream(\"blobs/\") = %v, want the one object", listed)
-	}
-
-	if time.Since(listed[0].ModTime).Abs() > time.Minute {
-		t.Errorf("ListStream ModTime = %v, want within a minute of now",
-			listed[0].ModTime)
-	}
-}
-
 // conformanceDelete checks that Delete removes an object and that deleting
 // a missing key is not an error.
 func conformanceDelete(t *testing.T, s storage.Storer) {

internal/storage/faultstore/faultstore.go

@@ -1,18 +1,15 @@
 // Package faultstore provides a storage.Storer wrapper that injects
 // faults on demand, so tests can reproduce the failure modes a real
 // backend exhibits: an upload that fails partway, a backend that reports
-// success while storing nothing, reads that return corrupt or truncated
+// success while storing nothing, and reads that return corrupt or
-// bytes, and a delete or a stat the backend refuses. It is the seam
+// truncated bytes. It is the seam called for by the fault-injection
-// called for by the fault-injection tests (sneak/vaultik issue 72) and
+// tests (sneak/vaultik issue 72) and is meant to be reused by future
-// is meant to be reused by future tests rather than re-implemented per
+// tests rather than re-implemented per case.
-// case.
 //
-// The wrapper delegates every method to the inner Storer. Four hooks
+// The wrapper delegates every method to the inner Storer. Two hooks
-// change that: OnPut decides the fate of each write, OnGet decides how
+// change that: OnPut decides the fate of each write, and OnGet decides
-// each read's bytes are returned, OnDelete decides whether each delete
+// how each read's bytes are returned. Both are keyed by the object key,
-// fails, and OnStat whether each stat fails. All are keyed by the object
+// so a test can fault only blobs, only metadata, or a single object.
-// key, so a test can fault only blobs, only metadata, or a single
-// object.
 package faultstore
 
 import (
@@ -28,15 +25,6 @@ import (
 // ErrInjectedUpload is returned by a Put the OnPut hook chose to fail.
 var ErrInjectedUpload = errors.New("faultstore: injected upload failure")
 
-// ErrInjectedDelete is returned by a Delete the OnDelete hook chose to
-// fail.
-var ErrInjectedDelete = errors.New("faultstore: injected delete failure")
-
-// ErrInjectedStat is returned by a Stat the OnStat hook chose to fail.
-// It is not storage.ErrNotFound: the backend refused the request, as S3
-// refuses a HEAD to credentials that allow only PUT.
-var ErrInjectedStat = errors.New("faultstore: injected stat failure")
-
 // PutAction is the disposition OnPut assigns to a write.
 type PutAction int
 
@@ -78,15 +66,6 @@ type Storer struct {
 	// OnGet, when set, is consulted for every Get with the object key
 	// and damages the returned bytes accordingly.
 	OnGet func(key string) GetFault
-
-	// OnDelete, when set, is consulted before every Delete with the
-	// object key. Returning true fails the delete and leaves the object
-	// in place.
-	OnDelete func(key string) bool
-
-	// OnStat, when set, is consulted before every Stat with the object
-	// key. Returning true fails the stat with ErrInjectedStat.
-	OnStat func(key string) bool
 }
 
 // New wraps inner. inner must be non-nil.
@@ -170,21 +149,13 @@ func damage(fault GetFault, data []byte) []byte {
 	return out
 }
 
-// Stat returns the object's info unless OnStat fails the stat.
+// Stat delegates unchanged.
 func (f *Storer) Stat(ctx context.Context, key string) (*storage.ObjectInfo, error) {
-	if f.OnStat != nil && f.OnStat(key) {
-		return nil, fmt.Errorf("%w for %q", ErrInjectedStat, key)
-	}
-
 	return f.inner.Stat(ctx, key)
 }
 
-// Delete removes the object unless OnDelete fails the delete.
+// Delete delegates unchanged.
 func (f *Storer) Delete(ctx context.Context, key string) error {
-	if f.OnDelete != nil && f.OnDelete(key) {
-		return fmt.Errorf("%w for %q", ErrInjectedDelete, key)
-	}
-
 	return f.inner.Delete(ctx, key)
 }
 
@@ -200,11 +171,6 @@ func (f *Storer) ListStream(
 	return f.inner.ListStream(ctx, prefix)
 }
 
-// DeletePartialUploads delegates unchanged.
-func (f *Storer) DeletePartialUploads(ctx context.Context, prefix string) error {
-	return f.inner.DeletePartialUploads(ctx, prefix)
-}
-
 // Info delegates unchanged.
 func (f *Storer) Info() storage.Info {
 	return f.inner.Info()

internal/storage/file.go

@@ -21,13 +21,9 @@ type FileStorer struct {
 // NewFileStorer creates a new filesystem storage backend.
 //
 // Construction is intentionally cheap and does not touch the filesystem.
-// The backend never creates basePath: the user does, so that when
+// The basePath is recorded; the directory is created lazily on first
-// basePath is a directory on an unplugged volume, a write fails instead
+// write. Write operations (Put/PutWithProgress) call MkdirAll for the
-// of landing on the disk under the mount point. This does not hold when
+// per-blob parent directory, which also covers basePath on first use.
-// basePath is the mount point itself, which stays behind when its volume
-// is unplugged.
-// Put and PutWithProgress fail on a missing basePath and create the
-// directories below it as needed.
 // Get and Stat report a key under a missing basePath as ErrNotFound.
 // List and ListStream fail on a missing basePath, because listing it as
 // an empty store would make `prune` drop every local snapshot record.
@@ -124,10 +120,9 @@ func (f *FileStorer) Delete(_ context.Context, key string) error {
 	return nil
 }
 
-// List returns all keys with the given prefix, reading through symlinked
+// List returns all keys with the given prefix. It fails when the
-// directories. It fails when the destination directory is missing, or
+// destination directory is missing; a missing prefix under it is an
-// when the prefix or a directory above it is a symlink whose target is
+// empty listing.
-// missing; a prefix that is truly missing is an empty listing.
 func (f *FileStorer) List(ctx context.Context, prefix string) ([]string, error) {
 	var keys []string
 
@@ -138,7 +133,8 @@ func (f *FileStorer) List(ctx context.Context, prefix string) ([]string, error)
 
 	basePath := f.fullPath(prefix)
 
-	exists, err := f.prefixExists(prefix)
+	// Check if the prefix exists
+	exists, err := afero.Exists(f.fs, basePath)
 	if err != nil {
 		return nil, fmt.Errorf("checking path: %w", err)
 	}
@@ -147,7 +143,7 @@ func (f *FileStorer) List(ctx context.Context, prefix string) ([]string, error)
 		return keys, nil // Empty list for non-existent prefix
 	}
 
-	err = f.walk(basePath, func(path string, info os.FileInfo, err error) error {
+	err = afero.Walk(f.fs, basePath, func(path string, info os.FileInfo, err error) error {
 		if err != nil {
 			return err
 		}
@@ -180,9 +176,7 @@ func (f *FileStorer) List(ctx context.Context, prefix string) ([]string, error)
 }
 
 // ListStream returns a channel of ObjectInfo for large result sets. Like
-// List, it reads through symlinked directories and sends an error when
+// List, it sends an error when the destination directory is missing.
-// the destination directory is missing, or when the prefix or a directory
-// above it is a symlink whose target is missing.
 func (f *FileStorer) ListStream(ctx context.Context, prefix string) <-chan ObjectInfo {
 	ch := make(chan ObjectInfo)
 
@@ -198,7 +192,8 @@ func (f *FileStorer) ListStream(ctx context.Context, prefix string) <-chan Objec
 
 		basePath := f.fullPath(prefix)
 
-		exists, err := f.prefixExists(prefix)
+		// Check if the prefix exists
+		exists, err := afero.Exists(f.fs, basePath)
 		if err != nil {
 			ch <- ObjectInfo{Err: fmt.Errorf("checking path: %w", err)}
 
@@ -209,7 +204,7 @@ func (f *FileStorer) ListStream(ctx context.Context, prefix string) <-chan Objec
 			return // Empty channel for non-existent prefix
 		}
 
-		_ = f.walk(basePath, func(path string, info os.FileInfo, err error) error {
+		_ = afero.Walk(f.fs, basePath, func(path string, info os.FileInfo, err error) error {
 			// Check context cancellation
 			select {
 			case <-ctx.Done():
@@ -235,9 +230,8 @@ func (f *FileStorer) ListStream(ctx context.Context, prefix string) <-chan Objec
 				// Normalize path separators
 				relPath = strings.ReplaceAll(relPath, string(filepath.Separator), "/")
 				ch <- ObjectInfo{
-					Key:     relPath,
+					Key:  relPath,
-					Size:    info.Size(),
+					Size: info.Size(),
-					ModTime: info.ModTime(),
 				}
 			}
 
@@ -248,43 +242,6 @@ func (f *FileStorer) ListStream(ctx context.Context, prefix string) <-chan Objec
 	return ch
 }
 
-// DeletePartialUploads removes every file under prefix whose name ends in
-// tempSuffix. Like List, it reads through symlinked directories and fails
-// on one whose target is missing. A missing prefix has none to remove.
-func (f *FileStorer) DeletePartialUploads(ctx context.Context, prefix string) error {
-	basePath := f.fullPath(prefix)
-
-	exists, err := f.prefixExists(prefix)
-	if err != nil {
-		return fmt.Errorf("checking path: %w", err)
-	}
-
-	if !exists {
-		return nil
-	}
-
-	err = f.walk(basePath, func(path string, info os.FileInfo, err error) error {
-		if err != nil {
-			return err
-		}
-
-		if ctx.Err() != nil {
-			return ctx.Err()
-		}
-
-		if info.IsDir() || !strings.HasSuffix(info.Name(), tempSuffix) {
-			return nil
-		}
-
-		return f.fs.Remove(path)
-	})
-	if err != nil {
-		return fmt.Errorf("walking directory: %w", err)
-	}
-
-	return nil
-}
-
 // Info returns human-readable storage location information.
 func (f *FileStorer) Info() Info {
 	return Info{
@@ -304,19 +261,7 @@ func (f *FileStorer) writeAtomic(
 	path := f.fullPath(key)
 	dir := filepath.Dir(path)
 
-	// Checked on every write, so a destination that disappears part-way
+	err := f.fs.MkdirAll(dir, storageDirPerm)
-	// through a backup fails it rather than being recreated by MkdirAll.
-	_, err := f.fs.Stat(f.basePath)
-	if os.IsNotExist(err) {
-		return fmt.Errorf("destination directory does not exist; "+
-			"create it, or mount the volume it is on: %w", err)
-	}
-
-	if err != nil {
-		return fmt.Errorf("checking destination directory: %w", err)
-	}
-
-	err = f.fs.MkdirAll(dir, storageDirPerm)
 	if err != nil {
 		return fmt.Errorf("creating directories: %w", err)
 	}
@@ -371,54 +316,6 @@ func (f *FileStorer) writeAtomic(
 	return nil
 }
 
-// walk is afero.Walk, except that it reads through a symlinked directory
-// the way Get and Stat do, where afero.Walk reports the link as one file.
-// afero.Walk uses Lstat, which does not follow a link, whenever the
-// filesystem has one; the struct below carries only the afero.Fs methods,
-// so the walk uses Stat instead. A link back up the tree is followed until
-// the operating system refuses the path for too many levels of links, and
-// the walk then fails.
-func (f *FileStorer) walk(root string, fn filepath.WalkFunc) error {
-	return afero.Walk(struct{ afero.Fs }{f.fs}, root, fn)
-}
-
-// prefixExists reports whether prefix exists under the destination
-// directory. It checks each directory on the way down to prefix in turn,
-// and the first one Stat cannot find decides: if it is not there at all,
-// prefix is missing; if it is a symlink whose target is missing, such as
-// a link to a volume that is not mounted, prefixExists fails, since
-// listing it as empty would let prune delete every blob.
-func (f *FileStorer) prefixExists(prefix string) (bool, error) {
-	lstater, canLstat := f.fs.(afero.Lstater)
-	path := f.basePath
-
-	for name := range strings.SplitSeq(prefix, "/") {
-		path = filepath.Join(path, name)
-
-		_, err := f.fs.Stat(path)
-		if err == nil {
-			continue
-		}
-
-		if !os.IsNotExist(err) {
-			return false, err
-		}
-
-		// Lstat does not follow a symlink at path, so it finds the link
-		// that Stat could not follow.
-		if canLstat {
-			_, _, lstatErr := lstater.LstatIfPossible(path)
-			if lstatErr == nil {
-				return false, err
-			}
-		}
-
-		return false, nil
-	}
-
-	return true, nil
-}
-
 // fullPath returns the full filesystem path for a key.
 func (f *FileStorer) fullPath(key string) string {
 	return filepath.Join(f.basePath, key)

internal/storage/file_atomic_test.go

@@ -120,45 +120,3 @@ func TestFileStorer_ListSkipsPartialFiles(t *testing.T) {
 		t.Fatalf("ListStream should return only the real key, got %v", streamed)
 	}
 }
-
-// TestFileStorer_DeletePartialUploads checks that a leftover temp file is
-// removed and the object at the real key is kept.
-func TestFileStorer_DeletePartialUploads(t *testing.T) {
-	t.Parallel()
-
-	base := t.TempDir()
-
-	f, err := storage.NewFileStorer(base)
-	if err != nil {
-		t.Fatalf("NewFileStorer: %v", err)
-	}
-
-	ctx := context.Background()
-
-	err = f.Put(ctx, testBlobKey, strings.NewReader("blob-bytes"))
-	if err != nil {
-		t.Fatalf("Put: %v", err)
-	}
-
-	leftover := filepath.Join(base, testBlobKey+"-123456.partial")
-
-	err = os.WriteFile(leftover, []byte("half"), 0o600)
-	if err != nil {
-		t.Fatalf("writing leftover temp file: %v", err)
-	}
-
-	err = f.DeletePartialUploads(ctx, "blobs/")
-	if err != nil {
-		t.Fatalf("DeletePartialUploads: %v", err)
-	}
-
-	_, err = os.Stat(leftover)
-	if !os.IsNotExist(err) {
-		t.Errorf("leftover temp file was not removed: %v", err)
-	}
-
-	_, err = f.Stat(ctx, testBlobKey)
-	if err != nil {
-		t.Errorf("Stat of the real key: %v", err)
-	}
-}

internal/storage/file_backend_test.go

@@ -4,10 +4,7 @@ import (
 	"context"
 	"errors"
 	"io/fs"
-	"os"
 	"path/filepath"
-	"reflect"
-	"strings"
 	"testing"
 
 	"sneak.berlin/go/vaultik/internal/storage"
@@ -63,272 +60,3 @@ func TestFileStorerListMissingDestination(t *testing.T) {
 		t.Errorf("ListStream error = %v, want a not-exist error", streamErr)
 	}
 }
-
-// The two directories at the top of a destination, either of which the
-// tests below replace with a symlink.
-const (
-	metadataDir = "metadata"
-	blobsDir    = "blobs"
-)
-
-// moveBehindSymlink moves base/dir to a directory elsewhere and puts a
-// symlink to it in its place.
-func moveBehindSymlink(t *testing.T, base, dir string) {
-	t.Helper()
-
-	linkPath := filepath.Join(base, dir)
-	movedPath := filepath.Join(t.TempDir(), dir)
-
-	err := os.Rename(linkPath, movedPath)
-	if err != nil {
-		t.Fatalf("moving %s away: %v", dir, err)
-	}
-
-	err = os.Symlink(movedPath, linkPath)
-	if err != nil {
-		t.Fatalf("linking %s: %v", dir, err)
-	}
-}
-
-// TestFileStorerListsThroughSymlinkedDirectory checks that List and
-// ListStream read through a symlinked metadata/ or blobs/ directory, as Get
-// and Stat do, instead of listing the link as one key. Listing the whole
-// destination meets the link part-way through the walk; listing its prefix
-// starts the walk at the link. A prefix missing behind the link lists as
-// empty.
-func TestFileStorerListsThroughSymlinkedDirectory(t *testing.T) {
-	t.Parallel()
-
-	for _, dir := range []string{metadataDir, blobsDir} {
-		t.Run(dir, func(t *testing.T) {
-			t.Parallel()
-
-			base := t.TempDir()
-			key := dir + "/aa/bb/object"
-
-			s, err := storage.NewFileStorer(base)
-			if err != nil {
-				t.Fatalf("NewFileStorer: %v", err)
-			}
-
-			err = s.Put(context.Background(), key, strings.NewReader("data"))
-			if err != nil {
-				t.Fatalf("Put: %v", err)
-			}
-
-			moveBehindSymlink(t, base, dir)
-
-			want := []string{key}
-
-			for _, prefix := range []string{"", dir + "/"} {
-				got := listSorted(t, s, prefix)
-				if !reflect.DeepEqual(got, want) {
-					t.Errorf("List(%q) = %v, want %v", prefix, got, want)
-				}
-
-				got = listStreamKeys(t, s, prefix)
-				if !reflect.DeepEqual(got, want) {
-					t.Errorf("ListStream(%q) = %v, want %v", prefix, got, want)
-				}
-			}
-
-			absent := dir + "/absent/"
-
-			if got := listSorted(t, s, absent); len(got) != 0 {
-				t.Errorf("List(%q) = %v, want empty", absent, got)
-			}
-
-			if got := listStreamKeys(t, s, absent); len(got) != 0 {
-				t.Errorf("ListStream(%q) = %v, want empty", absent, got)
-			}
-		})
-	}
-}
-
-// TestFileStorerListFailsOnSymlinkWithMissingTarget checks that List and
-// ListStream fail on a symlinked metadata/ or blobs/ directory whose target
-// is missing, such as a link to a volume that is not mounted, as they do on
-// a missing destination directory, instead of listing it as empty. That
-// holds for a prefix below the link too.
-func TestFileStorerListFailsOnSymlinkWithMissingTarget(t *testing.T) {
-	t.Parallel()
-
-	ctx := context.Background()
-
-	for _, dir := range []string{metadataDir, blobsDir} {
-		t.Run(dir, func(t *testing.T) {
-			t.Parallel()
-
-			base := t.TempDir()
-
-			s, err := storage.NewFileStorer(base)
-			if err != nil {
-				t.Fatalf("NewFileStorer: %v", err)
-			}
-
-			unmounted := filepath.Join(t.TempDir(), "unmounted")
-
-			err = os.Symlink(unmounted, filepath.Join(base, dir))
-			if err != nil {
-				t.Fatalf("Symlink: %v", err)
-			}
-
-			for _, prefix := range []string{"", dir + "/", dir + "/aa/"} {
-				keys, err := s.List(ctx, prefix)
-				if !errors.Is(err, fs.ErrNotExist) {
-					t.Errorf("List(%q) = %v, %v; want a not-exist error",
-						prefix, keys, err)
-				}
-
-				var streamErr error
-
-				for object := range s.ListStream(ctx, prefix) {
-					if object.Err != nil {
-						streamErr = object.Err
-					}
-				}
-
-				if !errors.Is(streamErr, fs.ErrNotExist) {
-					t.Errorf("ListStream(%q) error = %v, want a not-exist error",
-						prefix, streamErr)
-				}
-			}
-		})
-	}
-}
-
-// TestFileStorerListFailsOnSymlinkLoop checks that a symlink pointing back
-// at the destination makes List and ListStream fail instead of walking it
-// forever.
-func TestFileStorerListFailsOnSymlinkLoop(t *testing.T) {
-	t.Parallel()
-
-	ctx := context.Background()
-	base := t.TempDir()
-
-	s, err := storage.NewFileStorer(base)
-	if err != nil {
-		t.Fatalf("NewFileStorer: %v", err)
-	}
-
-	err = s.Put(ctx, testBlobKey, strings.NewReader("data"))
-	if err != nil {
-		t.Fatalf("Put: %v", err)
-	}
-
-	err = os.Symlink(base, filepath.Join(base, "blobs", "loop"))
-	if err != nil {
-		t.Fatalf("Symlink: %v", err)
-	}
-
-	keys, err := s.List(ctx, "blobs/")
-	if err == nil {
-		t.Errorf("List = %d keys and no error, want an error", len(keys))
-	}
-
-	var streamErr error
-
-	for object := range s.ListStream(ctx, "blobs/") {
-		if object.Err != nil {
-			streamErr = object.Err
-		}
-	}
-
-	if streamErr == nil {
-		t.Error("ListStream sent no error, want one")
-	}
-}
-
-// TestFileStorerDeletePartialUploadsThroughSymlinkedDirectory checks that
-// DeletePartialUploads, which remote nuke uses, removes a leftover temp
-// file behind a symlinked metadata/ or blobs/ directory and keeps the
-// object at the real key.
-func TestFileStorerDeletePartialUploadsThroughSymlinkedDirectory(t *testing.T) {
-	t.Parallel()
-
-	ctx := context.Background()
-
-	for _, dir := range []string{metadataDir, blobsDir} {
-		t.Run(dir, func(t *testing.T) {
-			t.Parallel()
-
-			base := t.TempDir()
-			key := dir + "/aa/bb/object"
-
-			s, err := storage.NewFileStorer(base)
-			if err != nil {
-				t.Fatalf("NewFileStorer: %v", err)
-			}
-
-			err = s.Put(ctx, key, strings.NewReader("data"))
-			if err != nil {
-				t.Fatalf("Put: %v", err)
-			}
-
-			leftover := filepath.Join(base, key+"-123456.partial")
-
-			err = os.WriteFile(leftover, []byte("half"), 0o600)
-			if err != nil {
-				t.Fatalf("writing leftover temp file: %v", err)
-			}
-
-			moveBehindSymlink(t, base, dir)
-
-			err = s.DeletePartialUploads(ctx, dir+"/")
-			if err != nil {
-				t.Fatalf("DeletePartialUploads: %v", err)
-			}
-
-			// leftover runs through the link.
-			_, err = os.Stat(leftover)
-			if !os.IsNotExist(err) {
-				t.Errorf("leftover temp file was not removed: %v", err)
-			}
-
-			_, err = s.Stat(ctx, key)
-			if err != nil {
-				t.Errorf("Stat of the real key: %v", err)
-			}
-		})
-	}
-}
-
-// TestFileStorerPutMissingDestination checks that a write fails when the
-// destination directory has gone, even after earlier writes to it
-// succeeded, and that it does not create the directory again.
-func TestFileStorerPutMissingDestination(t *testing.T) {
-	t.Parallel()
-
-	ctx := context.Background()
-	base := filepath.Join(t.TempDir(), "usbstick")
-
-	err := os.Mkdir(base, 0o750)
-	if err != nil {
-		t.Fatalf("Mkdir: %v", err)
-	}
-
-	s, err := storage.NewFileStorer(base)
-	if err != nil {
-		t.Fatalf("NewFileStorer: %v", err)
-	}
-
-	err = s.Put(ctx, "blobs/aa/bb/first", strings.NewReader("first"))
-	if err != nil {
-		t.Fatalf("first Put: %v", err)
-	}
-
-	err = os.Rename(base, base+"-unplugged")
-	if err != nil {
-		t.Fatalf("Rename: %v", err)
-	}
-
-	err = s.Put(ctx, "blobs/aa/bb/second", strings.NewReader("second"))
-	if !errors.Is(err, fs.ErrNotExist) {
-		t.Errorf("Put = %v, want a not-exist error", err)
-	}
-
-	_, err = os.Stat(base)
-	if !errors.Is(err, fs.ErrNotExist) {
-		t.Errorf("Put created the destination directory again (Stat = %v)", err)
-	}
-}

internal/storage/rclone.go

@@ -7,12 +7,10 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"os"
 	"strings"
 	"time"
 
 	"github.com/rclone/rclone/fs"
-	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configfile"
 	"github.com/rclone/rclone/fs/operations"
 
@@ -35,15 +33,6 @@ type RcloneStorer struct {
 // The remote parameter is the rclone remote name (as configured via `rclone config`).
 // The path parameter is the path within the remote.
 func NewRcloneStorer(ctx context.Context, remote, path string) (*RcloneStorer, error) {
-	// rclone reads RCLONE_CONFIG only as the value of its --config flag,
-	// which vaultik does not have, so it is applied here as that flag would.
-	if configPath, ok := os.LookupEnv("RCLONE_CONFIG"); ok {
-		err := config.SetConfigPath(configPath)
-		if err != nil {
-			return nil, fmt.Errorf("using RCLONE_CONFIG %q: %w", configPath, err)
-		}
-	}
-
 	// Install the default config file handler
 	configfile.Install()
 
@@ -53,14 +42,6 @@ func NewRcloneStorer(ctx context.Context, remote, path string) (*RcloneStorer, e
 		rclonePath += path
 	}
 
-	// On S3, Swift and some other remotes rclone keeps a time of its own in
-	// each object's metadata, which costs one request per object to read.
-	// rclone's use_server_modtime setting makes ModTime the time the
-	// listing gives instead: when the object was stored, which is what
-	// prune compares with prune_grace_period.
-	ctx, ci := fs.AddConfig(ctx)
-	ci.UseServerModTime = true
-
 	// Create the rclone filesystem
 	fsys, err := fs.NewFs(ctx, rclonePath)
 	if err != nil {
@@ -219,9 +200,8 @@ func (r *RcloneStorer) ListStream(
 
 			if prefix == "" || strings.HasPrefix(key, prefix) {
 				ch <- ObjectInfo{
-					Key:     key,
+					Key:  key,
-					Size:    obj.Size(),
+					Size: obj.Size(),
-					ModTime: obj.ModTime(ctx),
 				}
 			}
 		})
@@ -233,31 +213,6 @@ func (r *RcloneStorer) ListStream(
 	return ch
 }
 
-// DeletePartialUploads removes every object under prefix whose name ends
-// in tempSuffix.
-func (r *RcloneStorer) DeletePartialUploads(ctx context.Context, prefix string) error {
-	var partial []fs.Object
-
-	err := operations.ListFn(ctx, r.fsys, func(obj fs.Object) {
-		key := obj.Remote()
-		if strings.HasPrefix(key, prefix) && strings.HasSuffix(key, tempSuffix) {
-			partial = append(partial, obj)
-		}
-	})
-	if err != nil {
-		return fmt.Errorf("listing objects: %w", err)
-	}
-
-	for _, obj := range partial {
-		err = obj.Remove(ctx)
-		if err != nil {
-			return fmt.Errorf("removing object: %w", err)
-		}
-	}
-
-	return nil
-}
-
 // Info returns human-readable storage location information.
 func (r *RcloneStorer) Info() Info {
 	location := r.remote

internal/storage/rclone_test.go

@@ -5,19 +5,12 @@ import (
 	"context"
 	"errors"
 	"io"
-	"net/http"
-	"net/http/httptest"
 	"os"
 	"path/filepath"
 	"strings"
-	"sync/atomic"
 	"testing"
-	"time"
 
-	"github.com/johannesboyne/gofakes3"
-	"github.com/johannesboyne/gofakes3/backend/s3mem"
 	"github.com/rclone/rclone/fs"
-	"github.com/rclone/rclone/fs/config"
 	"github.com/rclone/rclone/fs/config/configmap"
 	"sneak.berlin/go/vaultik/internal/storage"
 )
@@ -205,47 +198,6 @@ func TestRcloneStorerListSkipsPartialFiles(t *testing.T) {
 	}
 }
 
-// TestRcloneStorerDeletePartialUploads checks that a temporary file left
-// by a killed upload is removed and the object at the real key is kept.
-//
-//nolint:paralleltest // NewRcloneStorer installs the process-global rclone config
-func TestRcloneStorerDeletePartialUploads(t *testing.T) {
-	dir := t.TempDir()
-	ctx := context.Background()
-
-	s, err := storage.NewRcloneStorer(ctx, ":local", dir)
-	if err != nil {
-		t.Fatalf("NewRcloneStorer: %v", err)
-	}
-
-	err = s.Put(ctx, testBlobKey, strings.NewReader("blob-bytes"))
-	if err != nil {
-		t.Fatalf("Put: %v", err)
-	}
-
-	leftover := filepath.Join(dir, testBlobKey+"-123456.partial")
-
-	err = os.WriteFile(leftover, []byte("half"), 0o600)
-	if err != nil {
-		t.Fatalf("writing leftover temp file: %v", err)
-	}
-
-	err = s.DeletePartialUploads(ctx, "blobs/")
-	if err != nil {
-		t.Fatalf("DeletePartialUploads: %v", err)
-	}
-
-	_, err = os.Stat(leftover)
-	if !os.IsNotExist(err) {
-		t.Errorf("leftover temp file was not removed: %v", err)
-	}
-
-	_, err = s.Stat(ctx, testBlobKey)
-	if err != nil {
-		t.Errorf("Stat of the real key: %v", err)
-	}
-}
-
 // newRcloneStorerOnWrappedLocal registers name as rclone's local backend
 // wrapped by wrap, and builds an rclone backend on it rooted at a fresh
 // temp directory. wrap changes the features the local backend reports, so
@@ -397,110 +349,3 @@ func TestNewRcloneStorerUnknownRemote(t *testing.T) {
 		t.Errorf("NewRcloneStorer error = %v, want ErrRemoteNotFound", err)
 	}
 }
-
-// TestNewRcloneStorerReadsRcloneConfigEnv checks that a remote defined only
-// in the file RCLONE_CONFIG names is found and written to, as rclone itself
-// would.
-func TestNewRcloneStorerReadsRcloneConfigEnv(t *testing.T) {
-	// rclone keeps the config file path in a process-global variable, which
-	// NewRcloneStorer leaves pointing at this test's file.
-	previous := config.GetConfigPath()
-
-	t.Cleanup(func() { _ = config.SetConfigPath(previous) })
-
-	confFile := filepath.Join(t.TempDir(), "rclone.conf")
-
-	err := os.WriteFile(confFile, []byte("[loc]\ntype = local\n"), 0o600)
-	if err != nil {
-		t.Fatalf("writing rclone config: %v", err)
-	}
-
-	t.Setenv("RCLONE_CONFIG", confFile)
-
-	dir := t.TempDir()
-	ctx := context.Background()
-
-	s, err := storage.NewRcloneStorer(ctx, "loc", dir)
-	if err != nil {
-		t.Fatalf("NewRcloneStorer: %v", err)
-	}
-
-	err = s.Put(ctx, testBlobKey, strings.NewReader("blob-bytes"))
-	if err != nil {
-		t.Fatalf("Put: %v", err)
-	}
-
-	_, err = os.Stat(filepath.Join(dir, testBlobKey))
-	if err != nil {
-		t.Errorf("object is not in the remote's directory: %v", err)
-	}
-}
-
-// TestRcloneListStreamOnS3MakesNoRequestPerObject checks that listing an
-// rclone S3 remote takes each object's time from the listing itself. By
-// default rclone reads the time it keeps in each object's metadata, one
-// request per object, and every command that lists the destination store
-// would slow down as it grows.
-//
-//nolint:paralleltest // NewRcloneStorer installs the process-global rclone config
-func TestRcloneListStreamOnS3MakesNoRequestPerObject(t *testing.T) {
-	backend := s3mem.New()
-
-	err := backend.CreateBucket(s3TestBucket)
-	if err != nil {
-		t.Fatalf("create bucket: %v", err)
-	}
-
-	const body = "blob-bytes"
-
-	_, err = backend.PutObject(s3TestBucket, testBlobKey, nil,
-		strings.NewReader(body), int64(len(body)))
-	if err != nil {
-		t.Fatalf("seed object: %v", err)
-	}
-
-	var headRequests atomic.Int64
-
-	fakeS3 := gofakes3.New(backend).Server()
-	srv := httptest.NewServer(http.HandlerFunc(
-		func(w http.ResponseWriter, r *http.Request) {
-			if r.Method == http.MethodHead {
-				headRequests.Add(1)
-			}
-
-			fakeS3.ServeHTTP(w, r)
-		}))
-	t.Cleanup(srv.Close)
-
-	remote := ":s3,provider=Other" +
-		",access_key_id=" + s3TestAccessKeyID +
-		",secret_access_key=" + s3TestSecretAccessKey +
-		",endpoint='" + srv.URL + "'"
-	ctx := context.Background()
-
-	s, err := storage.NewRcloneStorer(ctx, remote, s3TestBucket)
-	if err != nil {
-		t.Fatalf("NewRcloneStorer: %v", err)
-	}
-
-	headRequests.Store(0)
-
-	var listed []storage.ObjectInfo
-
-	for info := range s.ListStream(ctx, "blobs/") {
-		listed = append(listed, info)
-	}
-
-	if len(listed) != 1 || listed[0].Err != nil {
-		t.Fatalf("ListStream(\"blobs/\") = %v, want the one object", listed)
-	}
-
-	if time.Since(listed[0].ModTime).Abs() > time.Minute {
-		t.Errorf("ListStream ModTime = %v, want within a minute of now",
-			listed[0].ModTime)
-	}
-
-	if n := headRequests.Load(); n != 0 {
-		t.Errorf("ListStream made %d HEAD request(s), want none", n)
-	}
-}

internal/storage/s3.go

@@ -89,10 +89,9 @@ func (s *S3Storer) ListStream(ctx context.Context, prefix string) <-chan ObjectI
 
 		for info := range s.client.ListObjectsStream(ctx, prefix, false) {
 			ch <- ObjectInfo{
-				Key:     info.Key,
+				Key:  info.Key,
-				Size:    info.Size,
+				Size: info.Size,
-				ModTime: info.ModTime,
+				Err:  info.Err,
-				Err:     info.Err,
 			}
 		}
 	}()
@@ -100,12 +99,6 @@ func (s *S3Storer) ListStream(ctx context.Context, prefix string) <-chan ObjectI
 	return ch
 }
 
-// DeletePartialUploads has nothing to remove: S3 shows an object only once
-// its upload has completed, so an upload cut off part-way leaves none.
-func (s *S3Storer) DeletePartialUploads(_ context.Context, _ string) error {
-	return nil
-}
-
 // Info returns human-readable storage location information.
 func (s *S3Storer) Info() Info {
 	return Info{

internal/storage/s3_test.go

@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"context"
 	"errors"
-	"io"
 	"net/http"
 	"net/http/httptest"
 	"slices"
@@ -23,16 +22,13 @@ import (
 // s3TestBucket is the bucket created for each in-process S3 server.
 const s3TestBucket = "test-bucket"
 
-// Credentials for the tests' S3 clients. The test servers accept any.
+// Credentials for the tests that build a storer from a config.Config. The
+// in-process S3 server accepts any.
 const (
 	s3TestAccessKeyID     = "key"
 	s3TestSecretAccessKey = "secret"
 )
 
-// s3TestRegion is the region of the S3 clients built here with
-// s3.NewClient. The test servers ignore it.
-const s3TestRegion = "us-east-1"
-
 // newS3Storer builds an s3:// backend backed by a fresh in-process
 // S3 server. It reuses the same in-memory S3 harness (gofakes3 + s3mem
 // over httptest) that internal/s3 and the not-found regression test use,
@@ -59,7 +55,7 @@ func newS3Storer(t *testing.T) storage.Storer {
 		Bucket:          s3TestBucket,
 		AccessKeyID:     "test",
 		SecretAccessKey: "test",
-		Region:          s3TestRegion,
+		Region:          "us-east-1",
 	})
 	if err != nil {
 		t.Fatalf("new client: %v", err)
@@ -97,69 +93,6 @@ func TestS3StorerMissingKeyMapsToErrNotFound(t *testing.T) {
 	}
 }
 
-// TestS3ListingCutShortIsAnError checks that List and ListStream fail on a
-// listing page marked truncated that carries no continuation token, as a
-// server answering V2 listings V1-style sends it. Taken as the last page,
-// it would hide every later key: prune would treat the blobs of the
-// snapshots listed there as unreferenced, and a directory under metadata/
-// whose manifest is listed there as one with no manifest.
-func TestS3ListingCutShortIsAnError(t *testing.T) {
-	t.Parallel()
-
-	const (
-		prefix        = "metadata/"
-		truncatedPage = `<?xml version="1.0" encoding="UTF-8"?>
-<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
-  <Name>test-bucket</Name>
-  <Prefix>metadata/</Prefix>
-  <KeyCount>1</KeyCount>
-  <MaxKeys>1</MaxKeys>
-  <IsTruncated>true</IsTruncated>
-  <Contents>
-    <Key>metadata/snap/manifest.json.zst</Key>
-    <Size>8</Size>
-  </Contents>
-</ListBucketResult>`
-	)
-
-	srv := httptest.NewServer(http.HandlerFunc(
-		func(w http.ResponseWriter, _ *http.Request) {
-			_, _ = io.WriteString(w, truncatedPage)
-		}))
-	t.Cleanup(srv.Close)
-
-	client, err := s3.NewClient(context.Background(), s3.Config{
-		Endpoint:        srv.URL,
-		Bucket:          s3TestBucket,
-		AccessKeyID:     s3TestAccessKeyID,
-		SecretAccessKey: s3TestSecretAccessKey,
-		Region:          s3TestRegion,
-	})
-	if err != nil {
-		t.Fatalf("new client: %v", err)
-	}
-
-	storer := storage.NewS3Storer(client)
-	ctx := context.Background()
-
-	keys, err := storer.List(ctx, prefix)
-	if !errors.Is(err, s3.ErrNoContinuationToken) {
-		t.Errorf("List = %q, %v; want ErrNoContinuationToken", keys, err)
-	}
-
-	var streamErr error
-
-	for obj := range storer.ListStream(ctx, prefix) {
-		if obj.Err != nil {
-			streamErr = obj.Err
-		}
-	}
-
-	if !errors.Is(streamErr, s3.ErrNoContinuationToken) {
-		t.Errorf("ListStream error = %v, want ErrNoContinuationToken", streamErr)
-	}
-}
-
 // TestS3URLPrefixKeyLayout pins the bucket keys an s3:// URL reads and
 // writes: the README's remote storage layout, with the prefix joined to
 // each key by one "/". s3://b/p and s3://b/p/ must be the same

internal/storage/storer.go

@@ -14,7 +14,6 @@ import (
 	"context"
 	"errors"
 	"io"
-	"time"
 )
 
 // ErrNotFound is returned when an object does not exist.
@@ -28,10 +27,7 @@ type ProgressCallback func(bytesTransferred int64) error
 type ObjectInfo struct {
 	Key  string // Object key/path
 	Size int64  // Size in bytes
-	// ModTime is when the object was written, as the store reports it.
+	Err  error  // Error for streaming results (nil on success)
-	// Only ListStream sets it; Stat leaves it zero.
-	ModTime time.Time
-	Err     error // Error for streaming results (nil on success)
 }
 
 // Info provides human-readable storage configuration.
@@ -45,8 +41,7 @@ type Info struct {
 // directory for filesystem).
 type Storer interface {
 	// Put stores data at the specified key.
-	// The filesystem backend fails when its destination directory does
+	// Parent directories are created automatically for filesystem backends.
-	// not exist, and creates the directories below it as needed.
 	Put(ctx context.Context, key string, data io.Reader) error
 
 	// PutWithProgress stores data with progress reporting.
@@ -71,18 +66,11 @@ type Storer interface {
 	// For large result sets, prefer ListStream.
 	List(ctx context.Context, prefix string) ([]string, error)
 
-	// ListStream returns a channel of ObjectInfo, with each object's key,
+	// ListStream returns a channel of ObjectInfo for large result sets.
-	// size and modification time, for large result sets.
 	// The channel is closed when listing completes.
 	// If an error occurs during listing, the final item will have Err set.
 	ListStream(ctx context.Context, prefix string) <-chan ObjectInfo
 
-	// DeletePartialUploads removes every object under prefix that an
-	// upload cut off part-way left under a temporary name ending in
-	// `.partial`. The file and rclone backends' List and ListStream skip
-	// such an object.
-	DeletePartialUploads(ctx context.Context, prefix string) error
-
 	// Info returns human-readable storage location information.
 	Info() Info
 }

internal/storage/url.go

@@ -17,10 +17,8 @@ const (
 
 // Sentinel errors for storage URL parsing.
 var (
-	ErrEmptyStorageURL  = errors.New("storage URL is empty")
+	ErrEmptyStorageURL   = errors.New("storage URL is empty")
-	ErrEmptyFilePath    = errors.New("file URL path is empty")
+	ErrEmptyFilePath     = errors.New("file URL path is empty")
-	ErrRelativeFilePath = errors.New(
-		"file URL needs an absolute path, as in file:///path/to/backup")
 	ErrMissingBucket     = errors.New("s3 URL missing bucket name")
 	ErrMissingRemote     = errors.New("rclone URL missing remote name")
 	ErrUnsupportedScheme = errors.New(
@@ -30,12 +28,6 @@ var (
 		"storage URL must not carry credentials; " +
 			"set s3.access_key_id and s3.secret_access_key in the config instead")
 	ErrURLUnknownParam = errors.New("unknown query parameter in storage URL")
-	ErrURLBadQuery     = errors.New(
-		"storage URL query cannot be decoded; " +
-			"check it for a ; or a % not followed by two hex digits")
-	ErrRcloneRemoteParams = errors.New(
-		"rclone URL must not carry parameters in the remote name; " +
-			"set them on the remote with rclone config instead")
 )
 
 // URL represents a parsed storage URL.
@@ -59,8 +51,17 @@ func ParseStorageURL(rawURL string) (*URL, error) {
 		return nil, ErrEmptyStorageURL
 	}
 
+	// Handle file:// URLs
 	if after, ok := strings.CutPrefix(rawURL, "file://"); ok {
-		return parseFileURL(after)
+		path := after
+		if path == "" {
+			return nil, ErrEmptyFilePath
+		}
+
+		return &URL{
+			Scheme: schemeFile,
+			Prefix: path,
+		}, nil
 	}
 
 	if strings.HasPrefix(rawURL, "s3://") {
@@ -74,31 +75,9 @@ func ParseStorageURL(rawURL string) (*URL, error) {
 	return nil, ErrUnsupportedScheme
 }
 
-// parseFileURL parses the path that follows file://. The path must be
-// absolute: a relative one would resolve against the working directory,
-// so the destination would move with it. Percent-escapes are decoded, so
-// my%20stick names the directory "my stick"; a literal space is kept.
-func parseFileURL(rawPath string) (*URL, error) {
-	if rawPath == "" {
-		return nil, ErrEmptyFilePath
-	}
-
-	if !strings.HasPrefix(rawPath, "/") {
-		return nil, ErrRelativeFilePath
-	}
-
-	path, err := url.PathUnescape(rawPath)
-	if err != nil {
-		return nil, fmt.Errorf("invalid file URL path: %w", err)
-	}
-
-	return &URL{Scheme: schemeFile, Prefix: path}, nil
-}
-
 // parseS3URL parses an s3://bucket/prefix URL. It rejects credentials in
-// the userinfo or in the endpoint parameter's userinfo, a query that
+// the userinfo and any query parameter other than endpoint, region and
-// cannot be decoded, and any query parameter other than endpoint, region
+// ssl, so a credential-bearing URL is never stored or echoed.
-// and ssl, so a credential-bearing URL is never stored or echoed.
 func parseS3URL(rawURL string) (*URL, error) {
 	u, err := url.Parse(rawURL)
 	if err != nil {
@@ -114,26 +93,13 @@ func parseS3URL(rawURL string) (*URL, error) {
 		return nil, ErrMissingBucket
 	}
 
-	// u.Query() would silently drop a part it cannot decode, endpoint
+	query := u.Query()
-	// included. The decode error is not wrapped: it can quote the value.
-	query, err := url.ParseQuery(u.RawQuery)
-	if err != nil {
-		return nil, ErrURLBadQuery
-	}
 
 	err = rejectUnknownParams(query, "endpoint", "region", "ssl")
 	if err != nil {
 		return nil, err
 	}
 
-	// A host name never contains "@", so one in an endpoint, with or
-	// without a scheme, can only introduce userinfo.
-	for _, endpoint := range query["endpoint"] {
-		if strings.Contains(endpoint, "@") {
-			return nil, ErrURLCredentials
-		}
-	}
-
 	return &URL{
 		Scheme:   schemeS3,
 		Bucket:   bucket,
@@ -145,23 +111,9 @@ func parseS3URL(rawURL string) (*URL, error) {
 }
 
 // parseRcloneURL parses an rclone://remote/path URL. rclone:// takes no
-// query parameters, so credentials in the userinfo, parameters in the
+// query parameters, so credentials in the userinfo and any parameter at
-// remote name, a query that cannot be decoded and any query parameter at
 // all are rejected rather than silently ignored.
 func parseRcloneURL(rawURL string) (*URL, error) {
-	// The remote name runs up to the first "/", "?" or "#". It never
-	// contains a comma; one starts rclone's remote,param=value form,
-	// whose values can be credentials. This is checked before url.Parse,
-	// whose error for such a name can print part of it.
-	remote := strings.TrimPrefix(rawURL, "rclone://")
-	if end := strings.IndexAny(remote, "/?#"); end >= 0 {
-		remote = remote[:end]
-	}
-
-	if strings.Contains(remote, ",") {
-		return nil, ErrRcloneRemoteParams
-	}
-
 	u, err := url.Parse(rawURL)
 	if err != nil {
 		return nil, wrapParseError(err)
@@ -171,19 +123,12 @@ func parseRcloneURL(rawURL string) (*URL, error) {
 		return nil, ErrURLCredentials
 	}
 
-	remote = u.Host
+	remote := u.Host
 	if remote == "" {
 		return nil, ErrMissingRemote
 	}
 
-	// As in parseS3URL: u.Query() would drop a part it cannot decode, and
+	err = rejectUnknownParams(u.Query())
-	// the decode error can quote the value.
-	query, err := url.ParseQuery(u.RawQuery)
-	if err != nil {
-		return nil, ErrURLBadQuery
-	}
-
-	err = rejectUnknownParams(query)
 	if err != nil {
 		return nil, err
 	}

internal/storage/url_parse_test.go

@@ -14,10 +14,7 @@ import (
 func TestParseStorageURLValid(t *testing.T) {
 	t.Parallel()
 
-	const (
+	const bucket = "mybucket"
-		bucket     = "mybucket"
-		fileScheme = "file"
-	)
 
 	cases := []struct {
 		name string
@@ -27,17 +24,7 @@ func TestParseStorageURLValid(t *testing.T) {
 		{
 			name: "file absolute path",
 			raw:  "file:///var/backups/vaultik",
-			want: &storage.URL{Scheme: fileScheme, Prefix: "/var/backups/vaultik"},
+			want: &storage.URL{Scheme: "file", Prefix: "/var/backups/vaultik"},
-		},
-		{
-			name: "file percent-escaped path is decoded",
-			raw:  "file:///Volumes/my%20stick/backup",
-			want: &storage.URL{Scheme: fileScheme, Prefix: "/Volumes/my stick/backup"},
-		},
-		{
-			name: "file path with a literal space",
-			raw:  "file:///Volumes/my stick/backup",
-			want: &storage.URL{Scheme: fileScheme, Prefix: "/Volumes/my stick/backup"},
 		},
 		{
 			name: "s3 bucket and prefix, ssl defaults on",
@@ -103,7 +90,6 @@ func TestParseStorageURLErrors(t *testing.T) {
 	}{
 		{"empty url", "", storage.ErrEmptyStorageURL},
 		{"file empty path", "file://", storage.ErrEmptyFilePath},
-		{"file relative path", "file://dest", storage.ErrRelativeFilePath},
 		{"s3 missing bucket", "s3://", storage.ErrMissingBucket},
 		{"s3 missing bucket with path", "s3:///justprefix", storage.ErrMissingBucket},
 		{"rclone missing remote", "rclone://", storage.ErrMissingRemote},
@@ -150,19 +136,6 @@ func TestParseStorageURLRejectsCredentials(t *testing.T) {
 			wantErr: storage.ErrURLCredentials,
 			secrets: []string{key, secret, "mybucket"},
 		},
-		{
-			name: "s3 userinfo in endpoint",
-			raw: "s3://mybucket?endpoint=https://" +
-				key + ":" + secret + "@minio.example.com",
-			wantErr: storage.ErrURLCredentials,
-			secrets: []string{key, secret},
-		},
-		{
-			name:    "s3 userinfo in endpoint without scheme",
-			raw:     "s3://mybucket?endpoint=" + key + ":" + secret + "@minio.example.com",
-			wantErr: storage.ErrURLCredentials,
-			secrets: []string{key, secret},
-		},
 		{
 			name:    "s3 unknown query param",
 			raw:     "s3://mybucket?access_key=" + key + "&secret=" + secret,
@@ -216,112 +189,6 @@ func TestParseStorageURLRejectsCredentials(t *testing.T) {
 	}
 }
 
-// TestParseStorageURLRejectsRcloneRemoteParams checks that an rclone
-// remote name carrying parameters (rclone's "remote,param=value" form,
-// which can hold a credential) is rejected without echoing the value,
-// including the URLs that url.Parse itself refuses.
-func TestParseStorageURLRejectsRcloneRemoteParams(t *testing.T) {
-	t.Parallel()
-
-	cases := []struct {
-		name    string
-		raw     string
-		secrets []string // must not appear in the error message
-	}{
-		{
-			name:    "configured remote",
-			raw:     "rclone://gdrive,client_secret=topsecret/backups",
-			secrets: []string{"topsecret"},
-		},
-		{
-			name:    "remote defined inline",
-			raw:     "rclone://:s3,access_key_id=KEY,secret_access_key=SECRET/bucket",
-			secrets: []string{"KEY", "SECRET"},
-		},
-		{
-			name:    "colon in a parameter value",
-			raw:     "rclone://gdrive,client_secret=ab:cd/backups",
-			secrets: []string{"cd"},
-		},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			_, err := storage.ParseStorageURL(tc.raw)
-			if !errors.Is(err, storage.ErrRcloneRemoteParams) {
-				t.Fatalf("ParseStorageURL(%q) error = %v, want %v",
-					tc.raw, err, storage.ErrRcloneRemoteParams)
-			}
-
-			for _, secret := range tc.secrets {
-				if strings.Contains(err.Error(), secret) {
-					t.Errorf("error message leaked %q: %v", secret, err.Error())
-				}
-			}
-		})
-	}
-}
-
-// TestParseStorageURLRejectsUndecodableQuery checks that an s3 or rclone
-// URL whose query cannot be decoded is rejected, not read with that part
-// of the query left out, and that the error does not echo it.
-func TestParseStorageURLRejectsUndecodableQuery(t *testing.T) {
-	t.Parallel()
-
-	const (
-		key    = "AKIAKEY"
-		secret = "topsecret"
-	)
-
-	cases := []struct {
-		name string
-		raw  string
-	}{
-		{
-			name: "semicolon",
-			raw: "s3://mybucket/prefix?endpoint=https://" + key + ":" + secret +
-				"@minio.example.com:9000;region=us-east-1",
-		},
-		{
-			name: "bad percent escape",
-			raw: "s3://mybucket/prefix?endpoint=https://" + key + ":" + secret +
-				"%zz@minio.example.com:9000",
-		},
-		{
-			name: "rclone semicolon",
-			raw:  "rclone://gdrive/backups?token=" + secret + ";x=1",
-		},
-		{
-			name: "rclone bad percent escape",
-			raw:  "rclone://gdrive/backups?token=" + secret + "%zz",
-		},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			t.Parallel()
-
-			_, err := storage.ParseStorageURL(tc.raw)
-			if err == nil {
-				t.Fatalf("ParseStorageURL(%q) returned no error", tc.raw)
-			}
-
-			if !errors.Is(err, storage.ErrURLBadQuery) {
-				t.Errorf("ParseStorageURL(%q) error = %v, want %v",
-					tc.raw, err, storage.ErrURLBadQuery)
-			}
-
-			for _, s := range []string{key, secret, "minio.example.com"} {
-				if strings.Contains(err.Error(), s) {
-					t.Errorf("error message leaked %q: %v", s, err.Error())
-				}
-			}
-		})
-	}
-}
-
 // TestParseStorageURLParseFailureHidesURL checks that when url.Parse
 // itself fails, the wrapped error carries only the inner cause, not the
 // *url.Error whose text embeds the raw (possibly credential-bearing) URL.

internal/vaultik/blob_fetch.go

@@ -103,9 +103,6 @@ func (v *Vaultik) FetchAndDecryptBlob(
 }
 
 // FetchBlob downloads a blob and returns a reader for the encrypted data.
-// The reader is closed as soon as ctx is cancelled, which ends a read
-// blocked inside it. A storage error is returned as is: restore and deep
-// verify name the blob in their own errors.
 func (v *Vaultik) FetchBlob(
 	ctx context.Context, blobHash string,
 ) (io.ReadCloser, error) {
@@ -120,50 +117,8 @@ func (v *Vaultik) FetchBlob(
 
 	rc, err := v.Storage.Get(ctx, blobPath)
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("downloading blob %s: %w", shortHash(blobHash), err)
 	}
 
-	return newCloseOnCancelReader(ctx, rc), nil
+	return rc, nil
-}
-
-// closeOnCancelReader closes the reader it wraps when ctx is cancelled.
-// Not every backend's reader stops on cancel by itself (the file
-// backend's does not), and a read stalled on a slow or hung source would
-// otherwise outlast the shutdown timeout, so the process would exit
-// before restore or deep verify removed its decrypted temporary files.
-type closeOnCancelReader struct {
-	io.ReadCloser
-
-	ctx  context.Context //nolint:containedctx // Read reports its error
-	stop func() bool
-}
-
-func newCloseOnCancelReader(
-	ctx context.Context, rc io.ReadCloser,
-) *closeOnCancelReader {
-	return &closeOnCancelReader{
-		ReadCloser: rc,
-		ctx:        ctx,
-		stop:       context.AfterFunc(ctx, func() { _ = rc.Close() }),
-	}
-}
-
-// Read returns the context's error, not the closed reader's, once ctx
-// has been cancelled.
-func (r *closeOnCancelReader) Read(p []byte) (int, error) {
-	n, err := r.ReadCloser.Read(p)
-	if err != nil && r.ctx.Err() != nil {
-		return n, r.ctx.Err()
-	}
-
-	return n, err
-}
-
-// Close closes the wrapped reader, unless the cancel already closed it.
-func (r *closeOnCancelReader) Close() error {
-	if !r.stop() {
-		return nil
-	}
-
-	return r.ReadCloser.Close()
 }

internal/vaultik/blobcache.go

@@ -39,9 +39,9 @@ type blobDiskCacheEntry struct {
 // internally and will fall back to LRU eviction if curBytes exceeds
 // maxBytes. Restore passes math.MaxInt64 as maxBytes and drives
 // eviction itself via Delete() through restoreSweeper, which deletes
-// each blob once no file still to be restored in this run needs it.
+// each blob the moment every file that references its chunks has been
-// LRU never fires under that configuration; it is kept as a safety net
+// written. LRU never fires under that configuration; it is kept as a
-// for callers that don't manage eviction themselves.
+// safety net for callers that don't manage eviction themselves.
 //
 // Get/ReadAt/peak-Len counters are debugging instrumentation used by
 // tests to assert that the restore code path uses ReadAt rather than

internal/vaultik/changed_file_restore_test.go

@@ -137,7 +137,7 @@ func TestBackupAfterRemovingNewestSnapshotRestoresChangedFile(t *testing.T) {
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 	changedPath := filepath.Join(dataDir, "appended.bin")
@@ -184,7 +184,7 @@ func TestBackupAfterInterruptedRunRestoresChangedFile(t *testing.T) {
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 	changedPath := filepath.Join(dataDir, "appended.bin")

internal/vaultik/deep_verify_test.go

@@ -1,20 +1,15 @@
 package vaultik_test
 
 import (
-	"bytes"
 	"context"
-	"crypto/rand"
 	"io"
 	"os"
-	"path"
 	"path/filepath"
 	"testing"
 
 	"github.com/spf13/afero"
 	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/config"
 	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/storage"
 	"sneak.berlin/go/vaultik/internal/ui"
 	"sneak.berlin/go/vaultik/internal/vaultik"
 )
@@ -35,7 +30,7 @@ func TestDeepVerifyAcceptsHealthyAndRejectsCorruptBlob(t *testing.T) {
 	tempDir := t.TempDir()
 
 	dataDir := filepath.Join(tempDir, "source")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
 	chunkSize := int64(64 * 1024)
@@ -82,180 +77,6 @@ func TestDeepVerifyAcceptsHealthyAndRejectsCorruptBlob(t *testing.T) {
 		"deep verify should fail on a corrupted blob")
 }
 
-// TestDeepVerifyJSONCountsBlobs checks the verified and missing counts
-// that deep verify reports under --json: on a healthy snapshot, with a
-// damaged blob, and with missing blobs. Deep verify stops at the first
-// damaged blob, so the blobs read before it are the ones verified; when
-// blobs are missing it reads no blob contents, but counts every missing
-// blob.
-func TestDeepVerifyJSONCountsBlobs(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	fs := afero.NewOsFs()
-	ctx := context.Background()
-	storeDir := t.TempDir()
-
-	cfg, storer, snapshotID, keys := backUpSeveralBlobs(ctx, t, storeDir)
-
-	healthy, err := deepVerifyJSON(ctx, t, cfg, storer, snapshotID)
-	require.NoError(t, err)
-	require.Equal(t, "ok", healthy.Status)
-	require.Len(t, keys, healthy.BlobCount)
-	require.Equal(t, healthy.BlobCount, healthy.Verified)
-	require.Zero(t, healthy.Missing)
-
-	// Damage the last blob read, keeping its length, so every blob before
-	// it is read and passes first.
-	lastPath := filepath.Join(storeDir, keys[len(keys)-1])
-	blob, err := afero.ReadFile(fs, lastPath)
-	require.NoError(t, err)
-
-	blob[len(blob)/2] ^= 0xff
-	require.NoError(t, afero.WriteFile(fs, lastPath, blob, 0o600))
-
-	got, err := deepVerifyJSON(ctx, t, cfg, storer, snapshotID)
-	require.Error(t, err)
-	require.Equal(t, "failed", got.Status)
-	require.Equal(t, healthy.BlobCount-1, got.Verified)
-	require.Zero(t, got.Missing)
-
-	// Delete the first blob and the damaged last one: both must be
-	// counted as missing, not only the first one found.
-	var deletedSize int64
-
-	for _, key := range []string{keys[0], keys[len(keys)-1]} {
-		info, statErr := storer.Stat(ctx, key)
-		require.NoError(t, statErr)
-
-		deletedSize += info.Size
-
-		require.NoError(t, storer.Delete(ctx, key))
-	}
-
-	got, err = deepVerifyJSON(ctx, t, cfg, storer, snapshotID)
-	require.Error(t, err)
-	require.Equal(t, "failed", got.Status)
-	require.Equal(t, 2, got.Missing)
-	require.Equal(t, deletedSize, got.MissingSize)
-	require.Zero(t, got.Verified)
-}
-
-// TestDeepVerifyJSONCountsWrongSizeBlob checks that under --deep --json a
-// blob of the wrong size is counted in mismatched and fails the run, and
-// that the check goes on past it to count a missing blob after it. The
-// store is on disk, so the message must not call it S3.
-func TestDeepVerifyJSONCountsWrongSizeBlob(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	fs := afero.NewOsFs()
-	ctx := context.Background()
-	storeDir := t.TempDir()
-
-	cfg, storer, snapshotID, keys := backUpSeveralBlobs(ctx, t, storeDir)
-
-	// Make the first blob checked longer, and delete the last one.
-	firstPath := filepath.Join(storeDir, keys[0])
-	blob, err := afero.ReadFile(fs, firstPath)
-	require.NoError(t, err)
-
-	blob = append(blob, []byte("extra")...)
-	require.NoError(t, afero.WriteFile(fs, firstPath, blob, 0o600))
-	require.NoError(t, storer.Delete(ctx, keys[len(keys)-1]))
-
-	got, err := deepVerifyJSON(ctx, t, cfg, storer, snapshotID)
-	require.Error(t, err)
-	require.Equal(t, "failed", got.Status)
-	require.Equal(t, 1, got.Mismatched)
-	require.Equal(t, 1, got.Missing)
-	require.Zero(t, got.Verified)
-	require.Contains(t, got.ErrorMessage, "with the wrong size")
-	require.NotContains(t, got.ErrorMessage, "S3")
-}
-
-// TestDeepVerifyStopsOnBlobThatCannotBeChecked checks that a blob that is
-// present in storage but cannot be checked is not counted as missing:
-// deep verify stops and fails, saying it could not check the blob, with
-// the storage error.
-func TestDeepVerifyStopsOnBlobThatCannotBeChecked(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := t.TempDir()
-
-	cfg, storer, snapshotID, keys := backUpSeveralBlobs(ctx, t, storeDir)
-	failing := statFailingStorer{Storer: storer, failKeys: []string{keys[0]}}
-
-	got, err := deepVerifyJSON(ctx, t, cfg, failing, snapshotID)
-	require.Error(t, err)
-	require.Equal(t, "failed", got.Status)
-	require.Zero(t, got.Missing)
-	require.Contains(t, got.ErrorMessage,
-		"could not check blob "+path.Base(keys[0]))
-	require.Contains(t, got.ErrorMessage, errStatDenied.Error())
-}
-
-// backUpSeveralBlobs backs up random data, which does not compress or
-// deduplicate, so it fills at least three blobs in a store on disk at
-// storeDir. It returns the blobs' storage keys sorted, which is hash
-// order, the order deep verify reads them in.
-func backUpSeveralBlobs(
-	ctx context.Context, t *testing.T, storeDir string,
-) (*config.Config, *storage.FileStorer, string, []string) {
-	t.Helper()
-
-	fs := afero.NewOsFs()
-	tempDir := t.TempDir()
-	dataDir := filepath.Join(tempDir, "source")
-	dbPath := filepath.Join(tempDir, "index.sqlite")
-
-	chunkSize := int64(32 * 1024)
-	maxBlobSize := int64(128 * 1024)
-
-	data := make([]byte, maxBlobSize*4)
-	_, err := rand.Read(data)
-	require.NoError(t, err)
-	require.NoError(t, fs.MkdirAll(dataDir, 0o755))
-	require.NoError(t, afero.WriteFile(fs,
-		filepath.Join(dataDir, "data.bin"), data, 0o644))
-
-	cfg, storer, snapshotID := runFileStorageBackup(
-		ctx, t, fs, dataDir, storeDir, dbPath, chunkSize, maxBlobSize)
-
-	keys := storedBlobKeys(t, storeDir)
-	require.GreaterOrEqual(t, len(keys), 3)
-
-	return cfg, storer, snapshotID, keys
-}
-
-// deepVerifyJSON runs deep verify with --json on snapshotID and returns
-// the decoded result and the error RunDeepVerify returned.
-func deepVerifyJSON(
-	ctx context.Context, t *testing.T,
-	cfg *config.Config, storer storage.Storer, snapshotID string,
-) (vaultik.VerifyResult, error) {
-	t.Helper()
-
-	var out bytes.Buffer
-
-	v := &vaultik.Vaultik{
-		Config:  cfg,
-		Storage: storer,
-		Fs:      afero.NewOsFs(),
-		Stdout:  &out,
-		Stderr:  io.Discard,
-		UI:      ui.NewWithColor(io.Discard, false),
-	}
-	v.SetContext(ctx)
-
-	err := v.RunDeepVerify(snapshotID,
-		&vaultik.VerifyOptions{Deep: true, JSON: true})
-
-	return decodeVerifyResult(t, out.Bytes()), err
-}
-
 // corruptOneBlob flips a middle byte of the first blob file found under
 // blobsDir, leaving the file length unchanged.
 func corruptOneBlob(t *testing.T, fs afero.Fs, blobsDir string) {

internal/vaultik/destination_marker.go

@@ -1,103 +0,0 @@
-package vaultik
-
-import (
-	"errors"
-	"fmt"
-	"strings"
-
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/storage"
-)
-
-// destinationMarkerKey is the object every backup writes at the root of
-// the backup destination store. While the local index holds a snapshot
-// stored there, a destination that answers a look-up of it with not
-// found is treated as not present: an unplugged volume leaves an empty
-// directory at its mount point, which would otherwise read as a store
-// whose snapshots are all gone.
-const destinationMarkerKey = "vaultik-destination.txt"
-
-// destinationMarkerText is the whole content of the marker. It names no
-// host, path or time.
-const destinationMarkerText = "This is a vaultik backup destination store.\n"
-
-// errDestinationNotPresent is returned when the local index holds a
-// snapshot stored on the backup destination store and the store answers
-// that it has no marker.
-var errDestinationNotPresent = errors.New("backup destination store is not present")
-
-// checkDestinationMarker returns errDestinationNotPresent when the local
-// index holds a snapshot stored on the backup destination store and the
-// store answers that it has no marker. With no snapshot in the local
-// index, as on a first backup or on another machine, there is nothing to
-// check; nor when the local index is bound to a different destination
-// than the configured one, since its snapshots are stored there.
-//
-// A look-up of the marker that fails for any other reason than not
-// found is logged and otherwise ignored, because the check could not be
-// made: S3 refuses it to credentials that allow only PUT, which is all
-// a backup needs. The check exists for a file:// volume's empty mount
-// point, which always answers not found, and a destination that cannot
-// be reached fails on the next request made to it, such as the backup's
-// PUT of the marker.
-func (v *Vaultik) checkDestinationMarker() error {
-	ids, err := v.localSnapshotIDs()
-	if err != nil {
-		return fmt.Errorf("listing local snapshots: %w", err)
-	}
-
-	if len(ids) == 0 {
-		return nil
-	}
-
-	// Config is nil only in tests, which then record no binding (see
-	// EnsureStorageBinding).
-	if v.Config != nil {
-		stored, configured, err := v.storageBinding()
-		if err != nil {
-			return err
-		}
-
-		if stored != "" && stored != configured {
-			return nil
-		}
-	}
-
-	_, err = v.Storage.Stat(v.ctx, destinationMarkerKey)
-	if errors.Is(err, storage.ErrNotFound) {
-		return fmt.Errorf("%w: %s has no %s, but the local index holds "+
-			"snapshots stored there; mount the volume if it is removable, "+
-			"or if the destination was emptied on purpose, run "+
-			"'vaultik database delete' and back up again",
-			errDestinationNotPresent, v.Storage.Info().Location,
-			destinationMarkerKey)
-	}
-
-	// Info, not a warning: --cron must stay silent on a successful
-	// backup from a host whose credentials allow only PUT.
-	if err != nil {
-		log.Info("Could not check the backup destination store for its marker",
-			"key", destinationMarkerKey, "error", err)
-	}
-
-	return nil
-}
-
-// markDestination checks the backup destination store with
-// checkDestinationMarker and then writes the marker, so a first backup
-// marks its destination and a later one writes the same text again.
-func (v *Vaultik) markDestination() error {
-	err := v.checkDestinationMarker()
-	if err != nil {
-		return err
-	}
-
-	err = v.Storage.Put(v.ctx, destinationMarkerKey,
-		strings.NewReader(destinationMarkerText))
-	if err != nil {
-		return fmt.Errorf("writing %s to the backup destination store: %w",
-			destinationMarkerKey, err)
-	}
-
-	return nil
-}

internal/vaultik/destination_marker_test.go

@@ -1,331 +0,0 @@
-package vaultik_test
-
-import (
-	"bytes"
-	"context"
-	"os"
-	"path/filepath"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/database"
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/storage"
-	"sneak.berlin/go/vaultik/internal/storage/faultstore"
-	"sneak.berlin/go/vaultik/internal/vaultik"
-)
-
-// These tests cover https://git.eeqj.de/sneak/vaultik/issues/239: a
-// file:// destination at a volume's mount point leaves an empty directory
-// behind when the volume is unplugged. While the local index holds
-// snapshots, a destination that answers that it has no
-// vaultik-destination.txt is not present, so no command may write to it
-// or conclude from it that the local snapshots are gone.
-
-// markerFile is the name of the file a backup writes at the root of the
-// destination.
-const markerFile = "vaultik-destination.txt"
-
-// backUpThenUnplugMountPoint backs up to a file:// destination, then
-// moves the destination directory away and leaves an empty directory in
-// its place, as unplugging a volume mounted there would. It returns the
-// path of that empty directory.
-func backUpThenUnplugMountPoint(
-	ctx context.Context, t *testing.T,
-) (*vaultik.Vaultik, *database.Repositories, *bytes.Buffer, string) {
-	t.Helper()
-
-	storeDir := filepath.Join(t.TempDir(), "mnt")
-	v, repos, out := backUpToFileDestination(ctx, t, storeDir)
-
-	require.NoError(t, os.Rename(storeDir, storeDir+"-unplugged"))
-	require.NoError(t, os.Mkdir(storeDir, 0o750))
-
-	return v, repos, out, storeDir
-}
-
-// assertUntouched checks that the local index still holds its one
-// snapshot and that nothing was written to the empty mount point.
-func assertUntouched(
-	ctx context.Context, t *testing.T,
-	repos *database.Repositories, storeDir string,
-) {
-	t.Helper()
-
-	snapshots, err := repos.Snapshots.ListRecent(ctx, listRecentTestLimit)
-	require.NoError(t, err)
-	assert.Len(t, snapshots, 1, "no local snapshot record may be deleted")
-
-	entries, err := os.ReadDir(storeDir)
-	require.NoError(t, err)
-	assert.Empty(t, entries, "nothing may be written to the empty mount point")
-}
-
-// TestFirstBackupWritesMarker checks that a backup writes the marker
-// file at the root of the destination.
-func TestFirstBackupWritesMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	storeDir := t.TempDir()
-	backUpToFileDestination(context.Background(), t, storeDir)
-
-	assert.FileExists(t, filepath.Join(storeDir, markerFile))
-}
-
-// TestBackupRefusesDestinationWithoutMarker checks that snapshot create
-// --prune writes nothing and drops no local snapshot record when the
-// destination has no marker.
-func TestBackupRefusesDestinationWithoutMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, _, storeDir := backUpThenUnplugMountPoint(ctx, t)
-
-	err := v.CreateSnapshot(&vaultik.SnapshotCreateOptions{
-		Cron:  true,
-		Prune: true,
-	})
-	require.ErrorContains(t, err, markerFile)
-
-	assertUntouched(ctx, t, repos, storeDir)
-}
-
-// TestBackupGoesOnWhenMarkerCannotBeChecked checks that a backup goes on
-// and writes the marker when looking it up fails with an error other
-// than not found, as S3 answers credentials that allow only PUT
-// (https://git.eeqj.de/sneak/vaultik/issues/389), and that a marker
-// that is not found still stops it.
-func TestBackupGoesOnWhenMarkerCannotBeChecked(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := t.TempDir()
-	v, repos, _ := backUpToFileDestination(ctx, t, storeDir)
-
-	// Removed so the test sees the backup write it again: with the
-	// look-up failing, the backup cannot tell that it is gone.
-	markerPath := filepath.Join(storeDir, markerFile)
-	require.NoError(t, os.Remove(markerPath))
-
-	store := faultstore.New(v.Storage)
-	store.OnStat = func(key string) bool { return key == markerFile }
-	v.Storage = store
-
-	require.NoError(t, backUp(v, "second"))
-	localSnapshotID(ctx, t, repos, "second")
-	assert.FileExists(t, markerPath)
-
-	require.NoError(t, os.Remove(markerPath))
-
-	store.OnStat = nil
-
-	require.ErrorContains(t, backUp(v, "third"), markerFile)
-}
-
-// TestBackupChecksMarkerBeforeDroppingIncompleteSnapshots checks that
-// snapshot create writes nothing when the local index holds only an
-// incomplete snapshot and the destination has no marker. The backup drops
-// incomplete snapshots before it scans; checked after that, the local
-// index would hold none and nothing would be checked.
-func TestBackupChecksMarkerBeforeDroppingIncompleteSnapshots(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := t.TempDir()
-	v, repos := newFileDestinationVaultik(ctx, t, storeDir)
-
-	require.NoError(t, repos.Snapshots.Create(ctx, nil, &database.Snapshot{
-		ID:        "host_first_2026-01-02T03:04:05Z",
-		Hostname:  "host",
-		StartedAt: time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC),
-	}))
-
-	err := backUp(v, "first")
-	require.ErrorContains(t, err, markerFile)
-
-	assertUntouched(ctx, t, repos, storeDir)
-}
-
-// TestPruneRefusesDestinationWithoutMarker checks that prune fails and
-// deletes no local snapshot record when the destination has no marker.
-func TestPruneRefusesDestinationWithoutMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, _, storeDir := backUpThenUnplugMountPoint(ctx, t)
-
-	err := v.Prune(&vaultik.PruneOptions{Force: true})
-	require.ErrorContains(t, err, markerFile)
-
-	assertUntouched(ctx, t, repos, storeDir)
-}
-
-// TestPurgeRefusesDestinationWithoutMarker checks that snapshot purge
-// fails and deletes no local snapshot record when the destination has no
-// marker.
-func TestPurgeRefusesDestinationWithoutMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, _, storeDir := backUpThenUnplugMountPoint(ctx, t)
-
-	err := v.PurgeSnapshotsWithOptions(&vaultik.SnapshotPurgeOptions{
-		KeepLatest: true,
-		Force:      true,
-	})
-	require.ErrorContains(t, err, markerFile)
-
-	assertUntouched(ctx, t, repos, storeDir)
-}
-
-// TestNukeRemoteRefusesDestinationWithoutMarker checks that remote nuke
-// fails, deletes no local snapshot record, and neither reports the
-// destination empty nor advises running nuke again when the destination
-// has no marker.
-func TestNukeRemoteRefusesDestinationWithoutMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, out, storeDir := backUpThenUnplugMountPoint(ctx, t)
-
-	err := v.NukeRemote(true)
-	require.ErrorContains(t, err, markerFile)
-	assert.NotContains(t, out.String(), "now empty")
-	assert.NotContains(t, out.String(), "vaultik remote nuke --force")
-
-	assertUntouched(ctx, t, repos, storeDir)
-}
-
-// TestRemoveSnapshotWarnsWhenDestinationHasNoMarker checks that snapshot
-// remove warns that the metadata could not be removed from a destination
-// without a marker, instead of reporting that it was.
-func TestRemoveSnapshotWarnsWhenDestinationHasNoMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, out, _ := backUpThenUnplugMountPoint(ctx, t)
-
-	result, err := v.RemoveSnapshot(localSnapshotID(ctx, t, repos, "first"),
-		&vaultik.RemoveOptions{Force: true})
-	require.NoError(t, err)
-
-	assert.False(t, result.RemoteRemoved)
-	assert.Contains(t, out.String(),
-		"Could not remove snapshot metadata from remote")
-	assert.Contains(t, out.String(), markerFile)
-	assert.NotContains(t, out.String(),
-		"Removed snapshot metadata from remote storage")
-}
-
-// TestRemoveSnapshotOnlyOnDestinationFailsWithoutMarker checks that
-// snapshot remove, for a snapshot that is only on the destination, fails
-// saying the destination is not present when it has no marker, instead
-// of saying the snapshot does not exist.
-func TestRemoveSnapshotOnlyOnDestinationFailsWithoutMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "mnt")
-	v, repos, _ := backUpToFileDestination(ctx, t, storeDir)
-	require.NoError(t, backUp(v, "second"))
-
-	id := localSnapshotID(ctx, t, repos, "first")
-	_, err := v.RemoveSnapshot(id,
-		&vaultik.RemoveOptions{Force: true, LocalOnly: true})
-	require.NoError(t, err)
-
-	// Unplug the volume: an empty directory stays at its mount point.
-	require.NoError(t, os.Rename(storeDir, storeDir+"-unplugged"))
-	require.NoError(t, os.Mkdir(storeDir, 0o750))
-
-	_, err = v.RemoveSnapshot(id, &vaultik.RemoveOptions{Force: true})
-	require.ErrorContains(t, err, markerFile)
-	require.ErrorContains(t, err, "mount the volume")
-
-	assertUntouched(ctx, t, repos, storeDir)
-}
-
-// TestListSnapshotsWarnsWhenDestinationHasNoMarker checks that snapshot
-// list warns and shows the local index alone when the destination has no
-// marker, without reporting the local snapshot as missing from it.
-func TestListSnapshotsWarnsWhenDestinationHasNoMarker(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, out, _ := backUpThenUnplugMountPoint(ctx, t)
-	id := localSnapshotID(ctx, t, repos, "first")
-
-	require.NoError(t, v.ListSnapshots(false))
-
-	assert.Contains(t, out.String(), "Could not list backup destination store")
-	assert.Contains(t, out.String(), markerFile)
-	assert.Contains(t, out.String(), id)
-	assert.NotContains(t, out.String(), "not found in backup destination store")
-}
-
-// TestListSnapshotsAfterStorageURLChangeToEmptyDirectory checks that
-// snapshot list, after storage_url is changed to an empty directory,
-// warns only that the local index is bound to a different destination:
-// the local snapshots are stored at the old one, so the new one's lack
-// of a marker says nothing. With --json the local row is not on the new
-// destination, so remote_present is false, not unknown.
-func TestListSnapshotsAfterStorageURLChangeToEmptyDirectory(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, out := backUpToFileDestination(ctx, t, t.TempDir())
-	id := localSnapshotID(ctx, t, repos, "first")
-
-	newDir := t.TempDir()
-	store, err := storage.NewFileStorer(newDir)
-	require.NoError(t, err)
-
-	v.Storage = store
-	v.Config.StorageURL = "file://" + newDir
-
-	require.NoError(t, v.ListSnapshots(false))
-
-	assert.Contains(t, out.String(), id)
-	assert.Contains(t, out.String(),
-		"local index is bound to a different backup destination")
-	assert.NotContains(t, out.String(), "Could not list backup destination store")
-	assert.NotContains(t, out.String(), markerFile)
-
-	out.Reset()
-	require.NoError(t, v.ListSnapshots(true))
-
-	rows := decodeListJSON(t, out.String())
-	require.Len(t, rows, 1)
-	require.NotNil(t, rows[0].RemotePresent)
-	assert.False(t, *rows[0].RemotePresent)
-}
-
-// TestBackupAfterNukeRemoteSucceeds checks that remote nuke leaves the
-// destination ready for a new first backup, which writes the marker
-// again.
-func TestBackupAfterNukeRemoteSucceeds(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	storeDir := t.TempDir()
-	v, _, _ := backUpToFileDestination(context.Background(), t, storeDir)
-
-	require.NoError(t, v.NukeRemote(true))
-	assert.NoFileExists(t, filepath.Join(storeDir, markerFile))
-
-	require.NoError(t, backUp(v, "second"))
-	assert.FileExists(t, filepath.Join(storeDir, markerFile))
-}

internal/vaultik/destination_validation_test.go

@@ -161,14 +161,13 @@ func TestVerifyManifestBlobsRejectsShortHash(t *testing.T) {
 		Blobs: []snapshot.BlobInfo{{Hash: "abc", CompressedSize: 1}},
 	}
 
-	verified, missing, mismatched, missingSize, unchecked, err :=
+	verified, missing, mismatched, missingSize, err :=
 		v.verifyManifestBlobs(manifest, &VerifyOptions{JSON: true})
 	require.ErrorIs(t, err, errInvalidBlobHash)
 	require.Zero(t, verified)
 	require.Zero(t, missing)
 	require.Zero(t, mismatched)
 	require.Zero(t, missingSize)
-	require.Empty(t, unchecked)
 }
 
 // TestVerifyBlobChunksRejectsNegativeLength proves a blob_chunks row with a
@@ -258,10 +257,6 @@ func (s *stubLister) List(_ context.Context, _ string) ([]string, error) {
 	return nil, errStubUnused
 }
 
-func (s *stubLister) DeletePartialUploads(_ context.Context, _ string) error {
-	return errStubUnused
-}
-
 func (s *stubLister) Info() storage.Info {
 	return storage.Info{}
 }

internal/vaultik/fault_injection_test.go

@@ -192,7 +192,7 @@ func assertRestoreRejectsDamagedBlob(
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
@@ -238,7 +238,7 @@ func TestDeepVerifyCatchesLyingBackend(t *testing.T) {
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
 	ctx := context.Background()
@@ -290,7 +290,7 @@ func TestInterruptedBlobUploadRecordsNoUploadedBlob(t *testing.T) {
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
 	ctx := context.Background()
@@ -298,6 +298,10 @@ func TestInterruptedBlobUploadRecordsNoUploadedBlob(t *testing.T) {
 
 	writeFaultSourceTree(t, fs, dataDir)
 
+	// No upload succeeds, so nothing creates the destination directory.
+	// It must exist for the listing below to show that no blob survived.
+	require.NoError(t, os.Mkdir(storeDir, 0o750))
+
 	inner, err := storage.NewFileStorer(storeDir)
 	require.NoError(t, err)
 
@@ -361,7 +365,7 @@ func TestBackupRetryAfterInterruptedUploadIsRestorable(t *testing.T) {
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
@@ -425,7 +429,7 @@ func TestBackupSurvivesMetadataExportInterruption(t *testing.T) {
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
 	ctx := context.Background()
@@ -441,10 +445,6 @@ func TestBackupSurvivesMetadataExportInterruption(t *testing.T) {
 
 	repos := database.NewRepositories(db)
 
-	// snapshot create writes the marker; this backup runs its steps one
-	// by one, so the marker is written here.
-	require.NoError(t, inner.Put(ctx, markerFile, strings.NewReader("")))
-
 	// Back up and complete with a working backend.
 	sm := newFaultSnapshotManager(fs, inner, cfg, repos)
 	scanner := newFaultScanner(fs, inner, cfg, repos)
@@ -493,14 +493,8 @@ func TestBackupSurvivesMetadataExportInterruption(t *testing.T) {
 		"shallow verify must report the missing manifest")
 
 	// snapshot list must not crash on the partial snapshot.
-	var listOut strings.Builder
-
-	reader.UI = ui.NewWithColor(&listOut, false)
 	require.NoError(t, reader.ListSnapshots(false),
 		"snapshot list must tolerate a partially-exported snapshot")
-	assert.NotContains(t, listOut.String(),
-		"Could not list backup destination store",
-		"snapshot list must read the partial snapshot from the destination")
 }
 
 // Scenario 2, repair: the process dies during the metadata export of a
@@ -517,7 +511,7 @@ func TestBackupCompletesOnlyAfterMetadataExport(t *testing.T) {
 	fs := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
@@ -667,19 +661,17 @@ func faultScannerFactory(
 ) snapshot.ScannerFactory {
 	return func(params snapshot.ScannerParams) *snapshot.Scanner {
 		return snapshot.NewScanner(snapshot.ScannerConfig{
-			FS:                 params.Fs,
+			FS:               params.Fs,
-			Storage:            storer,
+			Storage:          storer,
-			ChunkSize:          faultChunkSize,
+			ChunkSize:        faultChunkSize,
-			MaxBlobSize:        faultMaxBlobSize,
+			MaxBlobSize:      faultMaxBlobSize,
-			CompressionLevel:   cfg.CompressionLevel,
+			CompressionLevel: cfg.CompressionLevel,
-			AgeRecipients:      cfg.AgeRecipients,
+			AgeRecipients:    cfg.AgeRecipients,
-			Repositories:       repos,
+			Repositories:     repos,
-			EnableProgress:     params.EnableProgress,
+			EnableProgress:   params.EnableProgress,
-			UI:                 params.UI,
+			UI:               params.UI,
-			Exclude:            params.Exclude,
+			Exclude:          params.Exclude,
-			SkipErrors:         params.SkipErrors,
+			SkipErrors:       params.SkipErrors,
-			PreviousSnapshotID: params.PreviousSnapshotID,
-			DeviceNumber:       params.DeviceNumber,
 		})
 	}
 }
@@ -694,7 +686,7 @@ func TestRestoreReportsDiskFull(t *testing.T) {
 	osFS := afero.NewOsFs()
 	tempDir := t.TempDir()
 	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 

internal/vaultik/helpers.go

@@ -3,7 +3,6 @@ package vaultik
 import (
 	"errors"
 	"fmt"
-	"math"
 	"regexp"
 	"strconv"
 	"strings"
@@ -48,10 +47,6 @@ const (
 	year  = 365 * day
 )
 
-// maxDuration is the largest value a time.Duration can hold, about 292
-// years.
-const maxDuration = time.Duration(math.MaxInt64)
-
 // A snapshot ID split on "_" has at least a hostname and a trailing
 // timestamp.
 const minSnapshotIDParts = 2
@@ -89,6 +84,22 @@ type SnapshotInfo struct {
 	RemotePresent    *bool            `json:"remote_present"`
 }
 
+// formatBytes formats bytes in a human-readable format
+func formatBytes(bytes int64) string {
+	const unit = 1024
+	if bytes < unit {
+		return fmt.Sprintf("%d B", bytes)
+	}
+
+	div, exp := int64(unit), 0
+	for n := bytes / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+
+	return fmt.Sprintf("%.1f %cB", float64(bytes)/float64(div), "KMGTPE"[exp])
+}
+
 // parseSnapshotTimestamp extracts the timestamp from a snapshot ID
 // Format: hostname_snapshotname_2026-01-12T14:41:15Z
 func parseSnapshotTimestamp(snapshotID string) (time.Time, error) {
@@ -134,10 +145,10 @@ func parseSnapshotName(snapshotID, hostname string) string {
 // parseDuration parses a duration string with support for human-friendly units:
 // d/day/days, w/week/weeks, mo/month/months, y/year/years, plus standard Go
 // duration units. Following Go, m is minutes and mo is months. A bare number,
-// an unknown unit, a negative value, and a total longer than maxDuration are
+// an unknown unit, and a negative value are all rejected. Outside the Go
-// all rejected. Outside the Go units the input must be whole numbers each
+// units the input must be whole numbers each followed directly by a unit
-// followed directly by a unit (2w3d), so 1.0y and 30 days are errors;
+// (2w3d), so 1.0y and 30 days are errors; decimals work only in Go units
-// decimals work only in Go units (1.5h).
+// (1.5h).
 func parseDuration(s string) (time.Duration, error) {
 	if strings.HasPrefix(strings.TrimSpace(s), "-") {
 		return 0, errNegativeDuration
@@ -170,30 +181,19 @@ func parseDuration(s string) (time.Duration, error) {
 			return 0, fmt.Errorf("invalid number %q: %w", match[1], err)
 		}
 
-		var unitLength time.Duration
-
 		unit := strings.ToLower(match[2])
 		switch unit {
 		case "d", "day", "days":
-			unitLength = day
+			total += time.Duration(n) * day
 		case "w", "week", "weeks":
-			unitLength = week
+			total += time.Duration(n) * week
 		case "mo", "month", "months":
-			unitLength = month
+			total += time.Duration(n) * month
 		case "y", "year", "years":
-			unitLength = year
+			total += time.Duration(n) * year
 		default:
 			return 0, fmt.Errorf("%w %q", errUnknownTimeUnit, unit)
 		}
-
-		// Past maxDuration the sum wraps to a negative value, which would
-		// put the purge cutoff in the future.
-		if time.Duration(n) > (maxDuration-total)/unitLength {
-			return 0, fmt.Errorf("%w: %q is longer than about 292 years",
-				errInvalidDuration, s)
-		}
-
-		total += time.Duration(n) * unitLength
 	}
 
 	return total, nil

internal/vaultik/helpers_test.go

@@ -111,17 +111,6 @@ func TestParseDuration(t *testing.T) {
 		{"30 days", 0, true},
 		{"30 days ago", 0, true},
 		{"x7d", 0, true},
-		// The largest time.Duration is about 292 years. A larger value
-		// must be rejected, not wrapped to a negative one, which would
-		// put the cutoff in the future and select every snapshot.
-		{"292y", 292 * 365 * 24 * time.Hour, false},
-		{"293y", 0, true},
-		{"3559mo", 0, true},
-		{"15251w", 0, true},
-		{"106752d", 0, true},
-		{"2562048h", 0, true},
-		{"200y200y", 0, true},
-		{"292y6mo", 0, true},
 	}
 
 	for _, tt := range tests {

internal/vaultik/info.go

@@ -167,6 +167,10 @@ const (
 	// metadataKeyParts is the minimum "/"-separated segment count of a
 	// metadata object key (metadata/<snapshot-id>/<filename>).
 	metadataKeyParts = 3
+
+	// blobKeyParts is the minimum "/"-separated segment count of a blob
+	// object key (blobs/<aa>/<bb>/<hash>).
+	blobKeyParts = 4
 )
 
 // SnapshotMetadataInfo contains information about a single snapshot's metadata
@@ -450,16 +454,23 @@ func (v *Vaultik) scanRemoteBlobStorage(
 		v.stdoutf("Scanning blobs...\n")
 	}
 
-	// Use prune's listing, so a file under blobs/ that prune would never
+	blobCh := v.Storage.ListStream(v.ctx, "blobs/")
-	// delete is not counted as a blob, and so not as an orphaned one.
+	allBlobs := make(map[string]int64)
-	allBlobs, err := v.listAllRemoteBlobs()
-	if err != nil {
-		return err
-	}
 
-	for _, blob := range allBlobs {
+	for obj := range blobCh {
+		if obj.Err != nil {
+			return fmt.Errorf("listing blobs: %w", obj.Err)
+		}
+
+		parts := strings.Split(obj.Key, "/")
+		if len(parts) < blobKeyParts {
+			continue
+		}
+
+		hash := parts[3]
+		allBlobs[hash] = obj.Size
 		result.TotalBlobCount++
-		result.TotalBlobSize += blob.Size
+		result.TotalBlobSize += obj.Size
 	}
 
 	// A blob named only by a manifest that could not be read, or by one
@@ -474,10 +485,10 @@ func (v *Vaultik) scanRemoteBlobStorage(
 		orphanedSize  int64
 	)
 
-	for hash, blob := range allBlobs {
+	for hash, size := range allBlobs {
 		if _, referenced := referencedBlobs[hash]; !referenced {
 			orphanedCount++
-			orphanedSize += blob.Size
+			orphanedSize += size
 		}
 	}
 

internal/vaultik/integration_test.go

@@ -155,12 +155,6 @@ func (m *MockStorer) ListStream(
 	return ch
 }
 
-// DeletePartialUploads has nothing to remove: Put stores each object
-// under its key at once.
-func (m *MockStorer) DeletePartialUploads(_ context.Context, _ string) error {
-	return nil
-}
-
 func (m *MockStorer) Info() storage.Info {
 	return storage.Info{
 		Type:     "mock",
@@ -771,7 +765,7 @@ func TestEndToEndFileStorage(t *testing.T) {
 	tempDir := t.TempDir()
 
 	dataDir := filepath.Join(tempDir, "source")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
@@ -964,7 +958,7 @@ func TestDedupOnlySnapshotRestores(t *testing.T) {
 	tempDir := t.TempDir()
 
 	dataDir := filepath.Join(tempDir, "source")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 

internal/vaultik/missing_destination_test.go

@@ -24,11 +24,13 @@ import (
 // that is not plugged in, cannot be listed. It is not an empty store, so
 // no command may conclude from it that the local snapshots are gone.
 
-// newFileDestinationVaultik returns a Vaultik that backs up the
+// backUpToFileDestination backs up the snapshot named "first" to a
-// snapshot named "first" to a file:// destination at storeDir.
+// file:// destination at storeDir, which need not exist yet. Everything
-func newFileDestinationVaultik(
+// the returned Vaultik prints after the backup goes to the returned
+// buffer.
+func backUpToFileDestination(
 	ctx context.Context, t *testing.T, storeDir string,
-) (*vaultik.Vaultik, *database.Repositories) {
+) (*vaultik.Vaultik, *database.Repositories, *bytes.Buffer) {
 	t.Helper()
 
 	osFs := afero.NewOsFs()
@@ -47,22 +49,8 @@ func newFileDestinationVaultik(
 
 	repos := database.NewRepositories(db)
 	cfg := changedFileConfig(dataDir, dbPath)
+	v := newBackupVaultik(ctx, cfg, store, repos, db, osFs)
 
-	return newBackupVaultik(ctx, cfg, store, repos, db, osFs), repos
-}
-
-// backUpToFileDestination creates the directory storeDir, as a user must
-// before the first backup, and backs up the snapshot named "first" to a
-// file:// destination there. Everything the returned Vaultik prints
-// after the backup goes to the returned buffer.
-func backUpToFileDestination(
-	ctx context.Context, t *testing.T, storeDir string,
-) (*vaultik.Vaultik, *database.Repositories, *bytes.Buffer) {
-	t.Helper()
-
-	require.NoError(t, os.MkdirAll(storeDir, 0o750))
-
-	v, repos := newFileDestinationVaultik(ctx, t, storeDir)
 	require.NoError(t, backUp(v, "first"))
 
 	out := &bytes.Buffer{}
@@ -87,28 +75,21 @@ func backUpThenUnplug(
 	return v, repos, out
 }
 
-// TestBackupFailsWhenDestinationDirectoryMissing checks that a backup to
+// TestFirstBackupCreatesDestinationDirectory checks that a first backup
-// a file:// destination whose directory does not exist fails before it
+// to a destination directory that does not exist yet creates it, and
-// records a snapshot, and does not create the directory.
+// that the destination can be listed afterwards.
-func TestBackupFailsWhenDestinationDirectoryMissing(t *testing.T) {
+func TestFirstBackupCreatesDestinationDirectory(t *testing.T) {
 	log.Initialize(log.Config{})
 	t.Parallel()
 
 	ctx := context.Background()
-	volume := filepath.Join(t.TempDir(), "volume")
+	storeDir := filepath.Join(t.TempDir(), "volume", "backup")
-	v, repos := newFileDestinationVaultik(ctx, t, filepath.Join(volume, "backup"))
+	v, _, out := backUpToFileDestination(ctx, t, storeDir)
 
-	err := backUp(v, "first")
+	require.NoError(t, v.ListSnapshots(false))
-	require.ErrorIs(t, err, fs.ErrNotExist)
-	require.ErrorContains(t, err, "create it, or mount the volume it is on")
 
-	_, err = os.Stat(volume)
+	assert.NotContains(t, out.String(), "Could not list backup destination store")
-	require.ErrorIs(t, err, fs.ErrNotExist,
+	assert.NotContains(t, out.String(), "not found in backup destination store")
-		"the backup must not create the destination directory")
-
-	snapshots, err := repos.Snapshots.ListRecent(ctx, listRecentTestLimit)
-	require.NoError(t, err)
-	assert.Empty(t, snapshots)
 }
 
 // TestListSnapshotsWarnsWhenDestinationMissing checks that snapshot list
@@ -188,41 +169,3 @@ func TestPurgeSaysListingFailedOnceWhenDestinationMissing(t *testing.T) {
 	assert.Equal(t, 1, strings.Count(err.Error(), "listing remote snapshots"),
 		err.Error())
 }
-
-// TestNukeRemoteKeepsLocalIndexWhenDestinationMissing checks that remote
-// nuke fails on a destination it cannot list, leaves the local index
-// unchanged, and neither reports the destination empty nor advises
-// running nuke again.
-func TestNukeRemoteKeepsLocalIndexWhenDestinationMissing(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	v, repos, out := backUpThenUnplug(ctx, t)
-
-	filesBefore, err := repos.Files.ListAll(ctx)
-	require.NoError(t, err)
-	require.NotEmpty(t, filesBefore)
-
-	blobsBefore, err := repos.Blobs.GetAll(ctx)
-	require.NoError(t, err)
-	require.NotEmpty(t, blobsBefore)
-
-	err = v.NukeRemote(true)
-	require.ErrorIs(t, err, fs.ErrNotExist)
-	require.ErrorContains(t, err, "listing remote snapshots")
-	assert.NotContains(t, out.String(), "now empty")
-	assert.NotContains(t, out.String(), "vaultik remote nuke --force")
-
-	snapshots, err := repos.Snapshots.ListRecent(ctx, listRecentTestLimit)
-	require.NoError(t, err)
-	assert.Len(t, snapshots, 1, "nuke must delete no local snapshot record")
-
-	files, err := repos.Files.ListAll(ctx)
-	require.NoError(t, err)
-	assert.Len(t, files, len(filesBefore), "nuke must delete no local file record")
-
-	blobs, err := repos.Blobs.GetAll(ctx)
-	require.NoError(t, err)
-	assert.Len(t, blobs, len(blobsBefore), "nuke must delete no local blob record")
-}

internal/vaultik/new_chunk_size_test.go

@@ -1,133 +0,0 @@
-package vaultik_test
-
-import (
-	"bytes"
-	"context"
-	"maps"
-	"path/filepath"
-	"testing"
-
-	"github.com/spf13/afero"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/chunker"
-	"sneak.berlin/go/vaultik/internal/database"
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/storage"
-	"sneak.berlin/go/vaultik/internal/vaultik"
-)
-
-// TestNewChunkSizeOfChangedFileStaysFixed covers
-// https://git.eeqj.de/sneak/vaultik/issues/311. A backup whose only change
-// is a modified file lists the size of the chunks that change added as its
-// NEW CHUNK SIZE, and a later backup that changes the file again leaves
-// every earlier snapshot's figure as it was. The file's row in the local
-// index is shared by all three snapshots and rewritten by each backup.
-func TestNewChunkSizeOfChangedFileStaysFixed(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	fs := afero.NewOsFs()
-	tempDir := t.TempDir()
-	dataDir := filepath.Join(tempDir, "src")
-	dbPath := filepath.Join(tempDir, "index.sqlite")
-	changedPath := filepath.Join(dataDir, "changed.bin")
-
-	ctx := context.Background()
-	files := writeFaultSourceTree(t, fs, dataDir)
-	cfg := changedFileConfig(dataDir, dbPath)
-
-	appendRandomBytes(t, fs, files, changedPath, appendedFileSize)
-
-	store, err := storage.NewFileStorer(t.TempDir())
-	require.NoError(t, err)
-
-	db, err := database.New(ctx, dbPath)
-	require.NoError(t, err)
-	t.Cleanup(func() { _ = db.Close() })
-
-	repos := database.NewRepositories(db)
-	v := newBackupVaultik(ctx, cfg, store, repos, db, fs)
-
-	require.NoError(t, backUp(v, "first"))
-
-	firstFiles := maps.Clone(files)
-	firstID := localSnapshotID(ctx, t, repos, "first")
-
-	appendRandomBytes(t, fs, files, changedPath, faultChunkSize)
-	require.NoError(t, backUp(v, "second"))
-
-	secondID := localSnapshotID(ctx, t, repos, "second")
-	secondAdded := sizeOfNewChunks(t, files, firstFiles)
-	require.Positive(t, secondAdded)
-	assert.Equal(t, secondAdded, listedNewChunkSizes(t, v)[secondID],
-		"the second snapshot must count the chunks the change added")
-
-	appendRandomBytes(t, fs, files, changedPath, faultChunkSize)
-	require.NoError(t, backUp(v, "third"))
-
-	sizes := listedNewChunkSizes(t, v)
-	assert.Equal(t, sizeOfNewChunks(t, firstFiles, nil), sizes[firstID],
-		"a later backup must not change the first snapshot's figure")
-	assert.Equal(t, secondAdded, sizes[secondID],
-		"a later backup must not change the second snapshot's figure")
-}
-
-// sizeOfNewChunks returns the total size of the distinct chunks of the
-// files in after that no file in before has, cut the way the backup cuts
-// them.
-func sizeOfNewChunks(t *testing.T, after, before map[string][]byte) int64 {
-	t.Helper()
-
-	known := make(map[string]bool)
-	for _, chunk := range chunksOf(t, before) {
-		known[chunk.Hash] = true
-	}
-
-	var total int64
-
-	for _, chunk := range chunksOf(t, after) {
-		if !known[chunk.Hash] {
-			known[chunk.Hash] = true
-			total += chunk.Size
-		}
-	}
-
-	return total
-}
-
-// chunksOf returns the chunks of every file in files.
-func chunksOf(t *testing.T, files map[string][]byte) []chunker.Chunk {
-	t.Helper()
-
-	c := chunker.NewChunker(faultChunkSize)
-
-	var all []chunker.Chunk
-
-	for _, content := range files {
-		chunks, err := c.ChunkReader(bytes.NewReader(content))
-		require.NoError(t, err)
-
-		all = append(all, chunks...)
-	}
-
-	return all
-}
-
-// listedNewChunkSizes runs `snapshot list --json` and returns each listed
-// snapshot's new_chunk_size by snapshot ID.
-func listedNewChunkSizes(t *testing.T, v *vaultik.Vaultik) map[string]int64 {
-	t.Helper()
-
-	var out bytes.Buffer
-
-	v.Stdout = &out
-	require.NoError(t, v.ListSnapshots(true))
-
-	sizes := make(map[string]int64)
-	for _, row := range decodeListJSON(t, out.String()) {
-		sizes[row.ID] = row.NewChunkSize
-	}
-
-	return sizes
-}

internal/vaultik/nuke_remote_test.go

@@ -1,201 +0,0 @@
-package vaultik_test
-
-import (
-	"context"
-	"io/fs"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/snapshot"
-	"sneak.berlin/go/vaultik/internal/storage/faultstore"
-)
-
-// TestNukeRemoteLeavesNoFiles checks that remote nuke leaves no file
-// under a file:// destination, including the `.partial` files uploads
-// killed part-way leave next to a snapshot's metadata and next to where a
-// blob would have been, a snapshot's database whose manifest was never
-// uploaded, and a file under blobs/ whose name is not a blob hash.
-func TestNukeRemoteLeavesNoFiles(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "store")
-	v, repos, out := backUpToFileDestination(ctx, t, storeDir)
-
-	snapshots, err := repos.Snapshots.ListRecent(ctx, listRecentTestLimit)
-	require.NoError(t, err)
-	require.Len(t, snapshots, 1)
-
-	snapshotKey := snapshot.RemoteSnapshotKey(snapshots[0].ID.String())
-	hash := testBlobHashA
-	leftovers := []string{
-		filepath.Join(storeDir, "metadata", snapshotKey,
-			"db.zst.age-123456.partial"),
-		filepath.Join(storeDir, "blobs", hash[:2], hash[2:4],
-			hash+"-123456.partial"),
-		filepath.Join(storeDir, "metadata",
-			snapshot.RemoteSnapshotKey("no-manifest"), "db.zst.age"),
-		filepath.Join(storeDir, "blobs", "0b", "01", ".DS_Store"),
-	}
-
-	for _, leftover := range leftovers {
-		require.NoError(t, os.MkdirAll(filepath.Dir(leftover), 0o750))
-		require.NoError(t, os.WriteFile(leftover, []byte("half an upload"), 0o600))
-	}
-
-	require.NoError(t, v.NukeRemote(true))
-
-	var files []string
-
-	err = filepath.WalkDir(storeDir,
-		func(path string, entry fs.DirEntry, err error) error {
-			if err != nil {
-				return err
-			}
-
-			if !entry.IsDir() {
-				files = append(files, path)
-			}
-
-			return nil
-		})
-	require.NoError(t, err)
-	assert.Empty(t, files)
-
-	// Nuke deletes the blobs itself, so advice to run prune is wrong.
-	assert.Contains(t, out.String(), "Backup destination store is now empty.")
-	assert.NotContains(t, out.String(), "vaultik prune")
-}
-
-// TestNukeRemoteFailsWhenADeleteFails checks that remote nuke returns an
-// error when a snapshot's metadata or a blob cannot be deleted, does not
-// report the store empty, and advises running nuke again: prune deletes
-// no snapshot metadata that has its manifest.
-func TestNukeRemoteFailsWhenADeleteFails(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	for _, refusedPrefix := range []string{"metadata/", "blobs/"} {
-		t.Run(refusedPrefix, func(t *testing.T) {
-			t.Parallel()
-
-			ctx := context.Background()
-			storeDir := filepath.Join(t.TempDir(), "store")
-			v, _, out := backUpToFileDestination(ctx, t, storeDir)
-
-			store := faultstore.New(v.Storage)
-			store.OnDelete = func(key string) bool {
-				return strings.HasPrefix(key, refusedPrefix)
-			}
-			v.Storage = store
-
-			require.Error(t, v.NukeRemote(true))
-
-			assert.NotContains(t, out.String(), "now empty")
-			assert.Contains(t, out.String(), "vaultik remote nuke --force")
-			assert.NotContains(t, out.String(), "vaultik prune")
-		})
-	}
-}
-
-// TestNukeRemoteKeepsLocalSnapshotWhoseMetadataIsNotDeleted checks that
-// remote nuke keeps a snapshot in the local index while its metadata
-// cannot be deleted from the destination store: dropped from the local
-// index, it would be left there as a remote-only snapshot without its
-// name.
-func TestNukeRemoteKeepsLocalSnapshotWhoseMetadataIsNotDeleted(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "store")
-	v, repos, _ := backUpToFileDestination(ctx, t, storeDir)
-
-	store := faultstore.New(v.Storage)
-	store.OnDelete = func(key string) bool {
-		return strings.HasPrefix(key, "metadata/")
-	}
-	v.Storage = store
-
-	require.Error(t, v.NukeRemote(true))
-
-	snapshots, err := repos.Snapshots.ListRecent(ctx, listRecentTestLimit)
-	require.NoError(t, err)
-	assert.Len(t, snapshots, 1)
-}
-
-// TestNukeRemoteNamesWhatIsLeft checks that remote nuke, when an object
-// it does not recognise cannot be deleted, does not report the store
-// empty but names that object and fails.
-func TestNukeRemoteNamesWhatIsLeft(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "store")
-	v, _, out := backUpToFileDestination(ctx, t, storeDir)
-
-	const leftKey = "blobs/0b/01/.DS_Store"
-
-	leftPath := filepath.Join(storeDir, filepath.FromSlash(leftKey))
-	require.NoError(t, os.MkdirAll(filepath.Dir(leftPath), 0o750))
-	require.NoError(t, os.WriteFile(leftPath, []byte("finder"), 0o600))
-
-	store := faultstore.New(v.Storage)
-	store.OnDelete = func(key string) bool { return key == leftKey }
-	v.Storage = store
-
-	require.Error(t, v.NukeRemote(true))
-
-	assert.Contains(t, out.String(), leftKey)
-	assert.NotContains(t, out.String(), "now empty")
-	assert.Contains(t, out.String(), "vaultik remote nuke --force")
-}
-
-// TestNukeRemoteRefusesAnotherDestinationWithoutRetryAdvice checks that
-// remote nuke, when the local index belongs to a different destination
-// than the configured one, fails without advising to run nuke again:
-// that run would fail the same way.
-func TestNukeRemoteRefusesAnotherDestinationWithoutRetryAdvice(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "store")
-	v, _, out := backUpToFileDestination(ctx, t, storeDir)
-
-	v.Config.StorageURL = "file://" + filepath.Join(t.TempDir(), "elsewhere")
-
-	err := v.NukeRemote(true)
-
-	require.ErrorContains(t, err, "bound to a different backup destination")
-	assert.NotContains(t, out.String(), "vaultik remote nuke --force")
-}
-
-// TestNukeRemoteFailsWhenALocalSnapshotCannotBeRemoved checks that a
-// snapshot remote nuke cannot remove from the local index fails the
-// run, and that nuke then does not report the destination store empty.
-func TestNukeRemoteFailsWhenALocalSnapshotCannotBeRemoved(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "store")
-	v, _, out := backUpToFileDestination(ctx, t, storeDir)
-
-	_, err := v.DB.Conn().ExecContext(ctx, `
-		CREATE TRIGGER refuse_snapshot_delete BEFORE DELETE ON snapshots
-		BEGIN SELECT RAISE(ABORT, 'simulated index error'); END`)
-	require.NoError(t, err)
-
-	require.Error(t, v.NukeRemote(true))
-
-	assert.NotContains(t, out.String(), "now empty")
-	assert.Contains(t, out.String(), "vaultik remote nuke --force")
-}

internal/vaultik/prune.go

@@ -4,13 +4,9 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
-	"sort"
 	"strings"
-	"time"
 
 	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/snapshot"
-	"sneak.berlin/go/vaultik/internal/storage"
 )
 
 // PruneOptions contains options for the prune command
@@ -23,39 +19,13 @@ type PruneOptions struct {
 var errNukeRequiresForce = errors.New(
 	"nuke requires --force (this deletes ALL remote snapshots and blobs)")
 
-// errBlobDeleteFailed reports unreferenced blobs prune could not delete.
-var errBlobDeleteFailed = errors.New("blob(s) could not be deleted")
-
-// errMetadataDirDeleteFailed reports directories under metadata/ with no
-// manifest that prune could not delete.
-var errMetadataDirDeleteFailed = errors.New(
-	"metadata director(ies) with no manifest could not be deleted")
-
-// errObjectsLeft reports objects remote nuke still finds on the backup
-// destination store after deleting.
-var errObjectsLeft = errors.New(
-	"object(s) still on the backup destination store")
-
-// nukeCommandHint is the command suggested when a remote nuke could not
-// delete everything: running it again deletes what is left, which
-// `vaultik prune` does not do for snapshot metadata that has its
-// manifest.
-const nukeCommandHint = "vaultik remote nuke --force"
-
 // metadataDirName is the top-level remote directory holding snapshot
 // metadata.
 const metadataDirName = "metadata"
 
-// blobKeyParts is the "/"-separated segment count of a blob object key
+// NukeRemote deletes every snapshot's metadata and every blob from remote
-// (blobs/<aa>/<bb>/<hash>).
+// storage. After this returns successfully the bucket prefix is empty and
-const blobKeyParts = 4
+// the next backup starts from scratch.
-
-// NukeRemote deletes every object under metadata/ and blobs/ in remote
-// storage, whatever its name, along with any object an upload cut off
-// part-way left under a temporary `.partial` name, and last the
-// destination marker. It returns successfully only when a listing
-// afterwards finds nothing left under metadata/ and blobs/, and the next
-// backup then starts from scratch.
 //
 // Refuses to run unless force is true. The caller is responsible for
 // confirming with the user.
@@ -64,37 +34,6 @@ func (v *Vaultik) NukeRemote(force bool) error {
 		return errNukeRequiresForce
 	}
 
-	// Checked before anything is deleted: running nuke again would fail
-	// the same way, so the advice below must not follow these errors.
-	// The listing also fails on a destination that answers that it has
-	// no marker while the local index holds snapshots.
-	err := v.EnsureStorageBinding()
-	if err != nil {
-		return err
-	}
-
-	_, err = v.listAllRemoteSnapshotKeys()
-	if err != nil {
-		return err
-	}
-
-	err = v.emptyDestinationStore()
-	if err != nil {
-		v.UI.Warningf("Run '%s' again to delete what is left on the "+
-			"backup destination store.", nukeCommandHint)
-
-		return err
-	}
-
-	v.UI.Completef("Backup destination store is now empty.")
-
-	return nil
-}
-
-// emptyDestinationStore does the deleting for NukeRemote and stops at
-// the first step that fails. It also fails when objects are still
-// listed at the end, naming each one.
-func (v *Vaultik) emptyDestinationStore() error {
 	v.UI.Beginf("Removing all snapshot metadata from backup destination store.")
 
 	_, err := v.RemoveAllSnapshots(&RemoveOptions{Force: true})
@@ -102,69 +41,18 @@ func (v *Vaultik) emptyDestinationStore() error {
 		return fmt.Errorf("removing all snapshots: %w", err)
 	}
 
-	v.UI.Beginf("Removing everything still present in backup destination store.")
+	v.UI.Beginf("Removing any blobs still present in backup destination store.")
 
-	var left []string
+	err = v.PruneBlobs(&PruneOptions{Force: true})
-
-	for _, prefix := range []string{"metadata/", "blobs/"} {
-		keys, err := v.deleteEverythingUnder(prefix)
-		if err != nil {
-			return err
-		}
-
-		left = append(left, keys...)
-	}
-
-	for _, key := range left {
-		v.UI.Warningf("Still on the backup destination store: %s", key)
-	}
-
-	if len(left) > 0 {
-		return fmt.Errorf("%d %w", len(left), errObjectsLeft)
-	}
-
-	// Last, once the local snapshot records are gone: the next backup
-	// then has none and writes the marker again.
-	err = v.Storage.Delete(v.ctx, destinationMarkerKey)
 	if err != nil {
-		return fmt.Errorf("deleting %s: %w", destinationMarkerKey, err)
+		return fmt.Errorf("pruning blobs: %w", err)
 	}
 
+	v.UI.Completef("Backup destination store is now empty.")
+
 	return nil
 }
 
-// deleteEverythingUnder deletes every object under prefix, whatever its
-// name, and returns the keys a listing afterwards still finds. A delete
-// that fails is logged and the others still run; that object then
-// shows up in the listing afterwards.
-func (v *Vaultik) deleteEverythingUnder(prefix string) ([]string, error) {
-	keys, err := v.Storage.List(v.ctx, prefix)
-	if err != nil {
-		return nil, fmt.Errorf("listing %s: %w", prefix, err)
-	}
-
-	for _, key := range keys {
-		err = v.Storage.Delete(v.ctx, key)
-		if err != nil {
-			log.Error("Failed to delete object", "key", key, "error", err)
-		}
-	}
-
-	// The file and rclone listings skip `.partial` objects, so the
-	// deletes above never reach them.
-	err = v.Storage.DeletePartialUploads(v.ctx, prefix)
-	if err != nil {
-		return nil, fmt.Errorf("deleting partial uploads: %w", err)
-	}
-
-	left, err := v.Storage.List(v.ctx, prefix)
-	if err != nil {
-		return nil, fmt.Errorf("listing %s: %w", prefix, err)
-	}
-
-	return left, nil
-}
-
 // PruneBlobsResult contains the result of a blob prune operation
 //
 //nolint:tagliatelle // snake_case is the established JSON output format
@@ -173,24 +61,14 @@ type PruneBlobsResult struct {
 	BlobsDeleted int   `json:"blobs_deleted"`
 	BlobsFailed  int   `json:"blobs_failed,omitempty"`
 	BytesFreed   int64 `json:"bytes_freed"`
-	// BlobsTooNew counts the unreferenced blobs kept because they are
-	// newer than the prune grace period, or of unknown age. BlobsFound
-	// does not include them.
-	BlobsTooNew int `json:"blobs_too_new"`
-	// MetadataDirsDeleted counts the directories under metadata/ with no
-	// manifest that prune deleted, and MetadataDirsFailed those it could
-	// not delete.
-	MetadataDirsDeleted int `json:"metadata_dirs_deleted"`
-	MetadataDirsFailed  int `json:"metadata_dirs_failed,omitempty"`
 }
 
-// Prune removes orphaned data from the local index database AND, from the
+// Prune removes orphaned data from the local index database AND
-// backup destination store, unreferenced blobs and the directories under
+// unreferenced blobs from the backup destination store. This is the
-// metadata/ with no manifest. This is the single user-facing prune entry
+// single user-facing prune entry point — the split between local and
-// point — the split between local and remote cleanup is an
+// remote cleanup is an implementation detail. Calling code should
-// implementation detail. Calling code should prefer this method over
+// prefer this method over PruneDatabase or PruneBlobs individually
-// PruneDatabase or PruneBlobs individually unless it specifically wants
+// unless it specifically wants one half.
-// one half.
 func (v *Vaultik) Prune(opts *PruneOptions) error {
 	err := v.EnsureStorageBinding()
 	if err != nil {
@@ -214,17 +92,11 @@ func (v *Vaultik) Prune(opts *PruneOptions) error {
 	return v.PruneBlobs(opts)
 }
 
-// PruneBlobs removes unreferenced blobs from storage, and each directory
+// PruneBlobs removes unreferenced blobs from storage
-// under metadata/ that a backup left with no manifest.
 func (v *Vaultik) PruneBlobs(opts *PruneOptions) error {
 	log.Info("Starting prune operation")
 
-	metadataObjects, err := v.listMetadataObjects()
+	allBlobsReferenced, err := v.collectReferencedBlobs()
-	if err != nil {
-		return err
-	}
-
-	allBlobsReferenced, err := v.collectReferencedBlobs(metadataObjects)
 	if err != nil {
 		return err
 	}
@@ -234,187 +106,81 @@ func (v *Vaultik) PruneBlobs(opts *PruneOptions) error {
 		return err
 	}
 
-	unreferencedBlobs, totalSize, tooNew := v.findUnreferencedBlobs(
+	unreferencedBlobs, totalSize := v.findUnreferencedBlobs(allBlobs, allBlobsReferenced)
-		allBlobs, allBlobsReferenced)
 
-	dirsWithoutManifest, err := v.findMetadataDirsWithoutManifest(metadataObjects)
+	result := &PruneBlobsResult{BlobsFound: len(unreferencedBlobs)}
-	if err != nil {
-		return err
-	}
 
-	result := &PruneBlobsResult{
+	if len(unreferencedBlobs) == 0 {
-		BlobsFound:  len(unreferencedBlobs),
-		BlobsTooNew: tooNew,
-	}
-
-	v.reportBlobsTooNew(tooNew, opts)
-
-	if len(unreferencedBlobs) == 0 && len(dirsWithoutManifest) == 0 {
 		log.Info("No unreferenced blobs found")
 
 		if opts.JSON {
 			return v.outputPruneBlobsJSON(result)
 		}
 
-		v.UI.Infof("No unreferenced blobs to remove.")
+		v.printlnStdout("No unreferenced blobs to remove.")
 
 		return nil
 	}
 
 	log.Info("Found unreferenced blobs",
-		"count", len(unreferencedBlobs), "total_size", ubytes(totalSize),
+		"count", len(unreferencedBlobs), "total_size", ubytes(totalSize))
-		"metadata_dirs_without_manifest", len(dirsWithoutManifest))
 
-	if !v.confirmPrune(opts, len(unreferencedBlobs), totalSize,
+	if !opts.JSON {
-		dirsWithoutManifest) {
+		v.stdoutf("Found %d unreferenced blob(s) totaling %s\n",
-		return nil
+			len(unreferencedBlobs), ubytes(totalSize))
+	}
+
+	if !opts.Force && !opts.JSON {
+		v.stdoutf("\nDelete %d unreferenced blob(s)? [y/N] ", len(unreferencedBlobs))
+
+		var confirm string
+
+		_, err = v.scanStdin(&confirm)
+		if err != nil {
+			v.printlnStdout("Cancelled")
+
+			return nil //nolint:nilerr // read failure means no confirmation
+		}
+
+		if strings.ToLower(confirm) != "y" {
+			v.printlnStdout("Cancelled")
+
+			return nil
+		}
 	}
 
 	v.deleteUnreferencedBlobs(unreferencedBlobs, allBlobs, result)
-	v.deleteMetadataDirs(dirsWithoutManifest, result)
 
 	if opts.JSON {
-		err = v.outputPruneBlobsJSON(result)
+		return v.outputPruneBlobsJSON(result)
-		if err != nil {
-			return err
-		}
-	} else {
-		v.reportPruneDeletions(result, len(dirsWithoutManifest))
 	}
 
-	var failures []error
+	v.stdoutf("\nDeleted %d blob(s) totaling %s\n",
+		result.BlobsDeleted, ubytes(result.BytesFreed))
 
 	if result.BlobsFailed > 0 {
-		failures = append(failures,
+		v.stdoutf("Failed to delete %d blob(s)\n", result.BlobsFailed)
-			fmt.Errorf("%d %w", result.BlobsFailed, errBlobDeleteFailed))
 	}
 
-	if result.MetadataDirsFailed > 0 {
+	return nil
-		failures = append(failures, fmt.Errorf("%d %w",
-			result.MetadataDirsFailed, errMetadataDirDeleteFailed))
-	}
-
-	return errors.Join(failures...)
 }
 
-// confirmPrune states what prune found to delete, unreferenced blobs and
+// collectReferencedBlobs downloads all manifests and returns the set of
-// directories under metadata/ with no manifest, naming each directory by
+// referenced blob hashes.
-// its remote key, and, unless --force is given, asks the operator to
-// confirm. Under --json it prints nothing and does not ask. It reports
-// whether to go ahead.
-func (v *Vaultik) confirmPrune(
-	opts *PruneOptions, blobCount int, blobsSize int64, dirs []string,
-) bool {
-	if opts.JSON {
-		return true
-	}
-
-	dirCount := len(dirs)
-	blobsFound := fmt.Sprintf("Found %d unreferenced blob(s) totaling %s.",
-		blobCount, ubytes(blobsSize))
-	dirsFound := fmt.Sprintf("Found %d metadata director(ies) left by "+
-		"backups that stopped before their manifest:", dirCount)
-
-	if opts.Force {
-		if blobCount > 0 {
-			v.UI.Infof("%s", blobsFound)
-		}
-
-		if dirCount > 0 {
-			v.UI.Infof("%s", dirsFound)
-
-			for _, remoteKey := range dirs {
-				v.UI.Detailf("metadata/%s/", remoteKey)
-			}
-		}
-
-		return true
-	}
-
-	// The counts, the names, the prompt and its answer bypass the UI:
-	// they are an interactive exchange the operator must see, so --quiet
-	// does not silence them.
-	if blobCount > 0 {
-		v.stdoutf("%s\n", blobsFound)
-	}
-
-	if dirCount > 0 {
-		v.stdoutf("%s\n", dirsFound)
-
-		for _, remoteKey := range dirs {
-			v.stdoutf("  metadata/%s/\n", remoteKey)
-		}
-	}
-
-	switch {
-	case dirCount == 0:
-		v.stdoutf("\nDelete %d unreferenced blob(s)? [y/N] ", blobCount)
-	case blobCount == 0:
-		v.stdoutf("\nDelete %d metadata director(ies)? [y/N] ", dirCount)
-	default:
-		v.stdoutf("\nDelete %d unreferenced blob(s) and %d metadata "+
-			"director(ies)? [y/N] ", blobCount, dirCount)
-	}
-
-	var confirm string
-
-	// A failure to read the answer means no confirmation.
-	_, err := v.scanStdin(&confirm)
-	if err != nil || strings.ToLower(confirm) != "y" {
-		v.printlnStdout("Cancelled")
-
-		return false
-	}
-
-	return true
-}
-
-// reportPruneDeletions says how many blobs and metadata directories
-// prune deleted, naming each kind only when it found some to delete.
-func (v *Vaultik) reportPruneDeletions(result *PruneBlobsResult, dirCount int) {
-	if result.BlobsFound > 0 {
-		v.UI.Infof("Deleted %d blob(s) totaling %s.",
-			result.BlobsDeleted, ubytes(result.BytesFreed))
-	}
-
-	if dirCount > 0 {
-		v.UI.Infof("Deleted %d metadata director(ies) with no manifest.",
-			result.MetadataDirsDeleted)
-	}
-}
-
-// listMetadataObjects lists every object under metadata/ on the
-// destination store.
-func (v *Vaultik) listMetadataObjects() ([]storage.ObjectInfo, error) {
-	log.Info("Listing remote snapshots")
-
-	var objects []storage.ObjectInfo
-
-	for object := range v.Storage.ListStream(v.ctx, "metadata/") {
-		if object.Err != nil {
-			return nil, fmt.Errorf("listing metadata objects: %w", object.Err)
-		}
-
-		objects = append(objects, object)
-	}
-
-	return objects, nil
-}
-
-// collectReferencedBlobs downloads every manifest among the listed
-// metadata objects and returns the set of referenced blob hashes.
 //
 // Every manifest must be read successfully. A manifest that cannot be
 // downloaded or decoded means its snapshot's blobs are unknown, so
 // treating them as unreferenced would let prune delete data a snapshot
 // still needs. Rather than risk that silent loss, any failure returns an
 // error naming the remote key and prune deletes nothing.
-func (v *Vaultik) collectReferencedBlobs(
+func (v *Vaultik) collectReferencedBlobs() (map[string]bool, error) {
-	metadataObjects []storage.ObjectInfo,
+	log.Info("Listing remote snapshots")
-) (map[string]bool, error) {
+	// IDs returned by listUniqueSnapshotIDs are remote keys (hashed
-	// IDs returned by uniqueSnapshotIDs are remote keys (hashed
 	// subdirectories under metadata/), not human snapshot IDs.
-	remoteKeys := uniqueSnapshotIDs(metadataObjects)
+	remoteKeys, err := v.listUniqueSnapshotIDs()
+	if err != nil {
+		return nil, fmt.Errorf("listing snapshot keys: %w", err)
+	}
 
 	log.Info("Found manifests in remote storage", "count", len(remoteKeys))
 
@@ -439,14 +205,18 @@ func (v *Vaultik) collectReferencedBlobs(
 	return allBlobsReferenced, nil
 }
 
-// uniqueSnapshotIDs returns deduplicated snapshot IDs from the listed
+// listUniqueSnapshotIDs returns deduplicated snapshot IDs from remote metadata
-// metadata objects.
+func (v *Vaultik) listUniqueSnapshotIDs() ([]string, error) {
-func uniqueSnapshotIDs(metadataObjects []storage.ObjectInfo) []string {
+	objectCh := v.Storage.ListStream(v.ctx, "metadata/")
 	seen := make(map[string]bool)
 
 	var snapshotIDs []string
 
-	for _, object := range metadataObjects {
+	for object := range objectCh {
+		if object.Err != nil {
+			return nil, fmt.Errorf("listing metadata objects: %w", object.Err)
+		}
+
 		parts := strings.Split(object.Key, "/")
 		if len(parts) >= minSnapshotIDParts &&
 			parts[0] == metadataDirName && parts[1] != "" {
@@ -461,15 +231,14 @@ func uniqueSnapshotIDs(metadataObjects []storage.ObjectInfo) []string {
 		}
 	}
 
-	return snapshotIDs
+	return snapshotIDs, nil
 }
 
-// listAllRemoteBlobs returns a map of all blob hashes in remote storage
+// listAllRemoteBlobs returns a map of all blob hashes to their sizes in remote storage
-// to their listing entries.
+func (v *Vaultik) listAllRemoteBlobs() (map[string]int64, error) {
-func (v *Vaultik) listAllRemoteBlobs() (map[string]storage.ObjectInfo, error) {
 	log.Info("Listing all blobs in storage")
 
-	allBlobs := make(map[string]storage.ObjectInfo)
+	allBlobs := make(map[string]int64)
 	blobObjectCh := v.Storage.ListStream(v.ctx, "blobs/")
 
 	for object := range blobObjectCh {
@@ -493,7 +262,7 @@ func (v *Vaultik) listAllRemoteBlobs() (map[string]storage.ObjectInfo, error) {
 			continue
 		}
 
-		allBlobs[parts[3]] = object
+		allBlobs[parts[3]] = object.Size
 	}
 
 	log.Info("Found blobs in storage", "count", len(allBlobs))
@@ -501,135 +270,30 @@ func (v *Vaultik) listAllRemoteBlobs() (map[string]storage.ObjectInfo, error) {
 	return allBlobs, nil
 }
 
-// findUnreferencedBlobs returns the hashes of the blobs no manifest
+// findUnreferencedBlobs returns blob hashes not referenced by any
-// references that are older than the prune grace period, and their total
+// manifest and their total size.
-// size. It also returns how many unreferenced blobs it left out for
-// being newer than that, or of unknown age because the listing gave no
-// time for them.
 func (v *Vaultik) findUnreferencedBlobs(
-	allBlobs map[string]storage.ObjectInfo, referenced map[string]bool,
+	allBlobs map[string]int64, referenced map[string]bool,
-) ([]string, int64, int) {
+) ([]string, int64) {
 	var (
 		unreferenced []string
 		totalSize    int64
-		tooNew       int
 	)
 
-	cutoff := time.Now().UTC().Add(-v.Config.PruneGracePeriod)
+	for hash, size := range allBlobs {
-
+		if !referenced[hash] {
-	for hash, blob := range allBlobs {
+			unreferenced = append(unreferenced, hash)
-		if referenced[hash] {
+			totalSize += size
-			continue
-		}
-
-		if blob.ModTime.IsZero() || blob.ModTime.After(cutoff) {
-			tooNew++
-
-			continue
-		}
-
-		unreferenced = append(unreferenced, hash)
-		totalSize += blob.Size
-	}
-
-	return unreferenced, totalSize, tooNew
-}
-
-// findMetadataDirsWithoutManifest returns the remote key of each
-// directory under metadata/ that has no manifest.json.zst, such as one a
-// backup leaves when its manifest upload fails after db.zst.age was
-// uploaded. It leaves out a directory a local snapshot record claims,
-// and one holding an object newer than the prune grace period, or of
-// unknown age because the listing gave no time for it: a backup still
-// running may be writing there. A name that is not a remote key is
-// never returned.
-func (v *Vaultik) findMetadataDirsWithoutManifest(
-	metadataObjects []storage.ObjectInfo,
-) ([]string, error) {
-	localIDs, err := v.localSnapshotIDs()
-	if err != nil {
-		return nil, fmt.Errorf("listing local snapshots: %w", err)
-	}
-
-	keep := make(map[string]bool, len(localIDs))
-	for _, id := range localIDs {
-		keep[snapshot.RemoteSnapshotKey(id)] = true
-	}
-
-	cutoff := time.Now().UTC().Add(-v.Config.PruneGracePeriod)
-	listed := make(map[string]bool)
-
-	for _, object := range metadataObjects {
-		parts := strings.Split(object.Key, "/")
-		if len(parts) < metadataKeyParts || !isBlobHash(parts[1]) {
-			continue
-		}
-
-		remoteKey := parts[1]
-		listed[remoteKey] = true
-
-		if parts[2] == "manifest.json.zst" ||
-			object.ModTime.IsZero() || object.ModTime.After(cutoff) {
-			keep[remoteKey] = true
 		}
 	}
 
-	var remoteKeys []string
+	return unreferenced, totalSize
-
-	for remoteKey := range listed {
-		if !keep[remoteKey] {
-			remoteKeys = append(remoteKeys, remoteKey)
-		}
-	}
-
-	sort.Strings(remoteKeys)
-
-	return remoteKeys, nil
-}
-
-// deleteMetadataDirs deletes everything in the given directories under
-// metadata/ and counts in the result the directories deleted and those
-// it could not delete.
-func (v *Vaultik) deleteMetadataDirs(
-	remoteKeys []string, result *PruneBlobsResult,
-) {
-	for _, remoteKey := range remoteKeys {
-		_, err := v.deleteRemoteSnapshotByKey(remoteKey)
-		if err != nil {
-			log.Error("Failed to delete metadata directory with no manifest",
-				"remote_key", remoteKey, "error", err)
-
-			result.MetadataDirsFailed++
-
-			continue
-		}
-
-		log.Info("Deleted metadata directory with no manifest",
-			"remote_key", remoteKey)
-
-		result.MetadataDirsDeleted++
-	}
-}
-
-// reportBlobsTooNew says how many unreferenced blobs prune kept for being
-// newer than the grace period or of unknown age. Under --json the
-// document carries the count instead.
-func (v *Vaultik) reportBlobsTooNew(tooNew int, opts *PruneOptions) {
-	if tooNew == 0 || opts.JSON {
-		return
-	}
-
-	v.UI.Infof("Kept %d unreferenced blob(s) newer than "+
-		"prune_grace_period (%s), or of unknown age: a backup still "+
-		"running may need them.",
-		tooNew, v.Config.PruneGracePeriod)
 }
 
 // deleteUnreferencedBlobs deletes the given blobs from storage and
 // populates the result.
 func (v *Vaultik) deleteUnreferencedBlobs(
-	unreferencedBlobs []string, allBlobs map[string]storage.ObjectInfo,
+	unreferencedBlobs []string, allBlobs map[string]int64, result *PruneBlobsResult,
-	result *PruneBlobsResult,
 ) {
 	log.Info("Deleting unreferenced blobs")
 
@@ -644,7 +308,7 @@ func (v *Vaultik) deleteUnreferencedBlobs(
 		}
 
 		result.BlobsDeleted++
-		result.BytesFreed += allBlobs[hash].Size
+		result.BytesFreed += allBlobs[hash]
 
 		if (i+1)%progressLogEvery == 0 || i == len(unreferencedBlobs)-1 {
 			log.Info("Deletion progress",

internal/vaultik/prune_count_test.go

@@ -1,17 +1,13 @@
 package vaultik //nolint:testpackage // exercises unexported count helpers
 
 import (
-	"bytes"
 	"context"
 	"testing"
-	"time"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 	"sneak.berlin/go/vaultik/internal/database"
 	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/snapshot"
-	"sneak.berlin/go/vaultik/internal/ui"
 )
 
 // TestTableCountForReportSurfacesReadFailure is the regression guard for
@@ -80,59 +76,3 @@ func TestCountDiffUnknownWhenEitherSideUnknown(t *testing.T) {
 	assert.Nil(t, countDiff(&before, nil), "unknown after yields unknown delta")
 	assert.Nil(t, countDiff(nil, nil))
 }
-
-// TestPruneDatabaseSummaryLabelsTotals removes the only incomplete
-// snapshot from an index that also holds a complete one. The figure in
-// brackets is every snapshot left in the local index, so the line must
-// say so rather than read as incomplete snapshots that remain.
-func TestPruneDatabaseSummaryLabelsTotals(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-
-	db, err := database.New(ctx, ":memory:")
-	require.NoError(t, err)
-	t.Cleanup(func() { _ = db.Close() })
-
-	repos := database.NewRepositories(db)
-
-	startedAt := time.Date(2026, 1, 2, 3, 4, 5, 0, time.UTC)
-	completedAt := startedAt.Add(time.Minute)
-
-	require.NoError(t, repos.Snapshots.Create(ctx, nil, &database.Snapshot{
-		ID:          "host_complete_2026-01-02T03:04:05Z",
-		Hostname:    "host",
-		StartedAt:   startedAt,
-		CompletedAt: &completedAt,
-	}))
-	require.NoError(t, repos.Snapshots.Create(ctx, nil, &database.Snapshot{
-		ID:        "host_incomplete_2026-01-02T03:04:05Z",
-		Hostname:  "host",
-		StartedAt: startedAt,
-	}))
-
-	var out bytes.Buffer
-
-	v := &Vaultik{
-		DB:           db,
-		Repositories: repos,
-		SnapshotManager: snapshot.NewSnapshotManager(
-			snapshot.SnapshotManagerParams{Repos: repos}),
-		UI: ui.NewWithColor(&out, false),
-	}
-	v.SetContext(ctx)
-
-	result, err := v.PruneDatabase()
-	require.NoError(t, err)
-	require.Equal(t, int64(1), result.SnapshotsDeleted)
-
-	assert.Contains(t, out.String(), "Incomplete snapshots: 1 removed "+
-		"(total snapshots left in the local index: 1).")
-	assert.Contains(t, out.String(), "Orphaned files: 0 removed "+
-		"(total files left in the local index: 0).")
-	assert.Contains(t, out.String(), "Orphaned chunks: 0 removed "+
-		"(total chunks left in the local index: 0).")
-	assert.Contains(t, out.String(), "Orphaned blobs: 0 removed "+
-		"(total blobs left in the local index: 0).")
-}

internal/vaultik/prune_delete_failure_test.go

@@ -1,98 +0,0 @@
-package vaultik_test
-
-import (
-	"context"
-	"encoding/json"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/storage/faultstore"
-	"sneak.berlin/go/vaultik/internal/vaultik"
-)
-
-// refuseBlobDeletes is an OnDelete hook that fails every blob delete.
-func refuseBlobDeletes(key string) bool {
-	return strings.HasPrefix(key, "blobs/")
-}
-
-// TestPruneBlobs_FailedDeleteReturnsError checks that prune returns an
-// error, so the command exits non-zero, when an unreferenced blob cannot
-// be deleted.
-func TestPruneBlobs_FailedDeleteReturnsError(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	env := newListEnv(t)
-
-	// The store holds no manifest, so nothing references this blob.
-	addBlob(t, env.store.testStorer, testBlobHashA)
-
-	store := faultstore.New(env.store)
-	store.OnDelete = refuseBlobDeletes
-	env.v.Storage = store
-
-	err := env.v.PruneBlobs(&vaultik.PruneOptions{Force: true})
-
-	require.ErrorContains(t, err, "1 blob(s) could not be deleted")
-}
-
-// TestPruneBlobs_JSONFailedDeleteReturnsError checks that prune --json
-// prints its document and then returns an error when an unreferenced
-// blob cannot be deleted.
-func TestPruneBlobs_JSONFailedDeleteReturnsError(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	env := newListEnv(t)
-	addBlob(t, env.store.testStorer, testBlobHashA)
-
-	store := faultstore.New(env.store)
-	store.OnDelete = refuseBlobDeletes
-	env.v.Storage = store
-
-	err := env.v.PruneBlobs(&vaultik.PruneOptions{JSON: true})
-
-	require.Error(t, err, "prune must fail when a blob cannot be deleted")
-
-	var result vaultik.PruneBlobsResult
-
-	require.NoError(t, json.Unmarshal(env.stdout.Bytes(), &result),
-		"stdout must hold the JSON document, got:\n%s", env.stdout.String())
-	assert.Equal(t, 1, result.BlobsFailed)
-	assert.Equal(t, 0, result.BlobsDeleted)
-}
-
-// TestCreateSnapshotPrune_FailedBlobDeleteReturnsError checks that the
-// prune step of snapshot create --prune fails the run when an
-// unreferenced blob cannot be deleted.
-func TestCreateSnapshotPrune_FailedBlobDeleteReturnsError(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "store")
-	v, _, _ := backUpToFileDestination(ctx, t, storeDir)
-
-	// No snapshot references this blob, so the prune step deletes it.
-	orphan := filepath.Join(storeDir, "blobs", testBlobHashA[:2],
-		testBlobHashA[2:4], testBlobHashA)
-	require.NoError(t, os.MkdirAll(filepath.Dir(orphan), 0o750))
-	require.NoError(t, os.WriteFile(orphan, []byte("orphan"), 0o600))
-
-	store := faultstore.New(v.Storage)
-	store.OnDelete = refuseBlobDeletes
-	v.Storage = store
-
-	err := v.CreateSnapshot(&vaultik.SnapshotCreateOptions{
-		Cron:  true,
-		Prune: true,
-	})
-
-	require.ErrorContains(t, err, "1 blob(s) could not be deleted")
-	assert.FileExists(t, orphan)
-}

internal/vaultik/prune_grace_period_test.go

@@ -1,168 +0,0 @@
-package vaultik_test
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/spf13/afero"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/config"
-	"sneak.berlin/go/vaultik/internal/database"
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/storage"
-	"sneak.berlin/go/vaultik/internal/storage/faultstore"
-	"sneak.berlin/go/vaultik/internal/ui"
-	"sneak.berlin/go/vaultik/internal/vaultik"
-)
-
-// TestPruneDuringBackupKeepsItsBlobs runs a prune from another host
-// sharing the destination store at the moment a backup has uploaded its
-// blobs and its db.zst.age but not yet its manifest, so no manifest lists
-// those blobs. The prune must leave the blobs and the db.zst.age, and the
-// backup must then restore.
-func TestPruneDuringBackupKeepsItsBlobs(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	fs := afero.NewOsFs()
-	tempDir := t.TempDir()
-	dataDir := filepath.Join(tempDir, "src")
-	storeDir := t.TempDir()
-	restoreDir := filepath.Join(tempDir, "restored")
-	dbPath := filepath.Join(tempDir, "index.sqlite")
-
-	ctx := context.Background()
-	cfg := faultTestConfig()
-	testFiles := writeFaultSourceTree(t, fs, dataDir)
-
-	inner, err := storage.NewFileStorer(storeDir)
-	require.NoError(t, err)
-
-	otherHostCfg := faultTestConfig()
-	otherHostCfg.PruneGracePeriod = time.Hour
-	otherHost := newReaderVaultik(ctx, otherHostCfg, inner, nil, fs)
-
-	var (
-		pruned   bool
-		pruneErr error
-	)
-
-	store := faultstore.New(inner)
-	store.OnPut = func(key string) faultstore.PutAction {
-		if strings.HasSuffix(key, "/manifest.json.zst") {
-			pruned = true
-			pruneErr = otherHost.PruneBlobs(&vaultik.PruneOptions{Force: true})
-		}
-
-		return faultstore.PutNormal
-	}
-
-	db, err := database.New(ctx, dbPath)
-	require.NoError(t, err)
-
-	repos := database.NewRepositories(db)
-
-	id := fullFaultBackup(ctx, t, fs, store, cfg, repos, dataDir, dbPath, "shared")
-	require.NoError(t, db.Close())
-
-	require.True(t, pruned, "the prune must run before the manifest upload")
-	require.NoError(t, pruneErr)
-
-	v := newReaderVaultik(ctx, cfg, inner, nil, fs)
-	require.NoError(t, v.Restore(&vaultik.RestoreOptions{
-		SnapshotID: id,
-		TargetDir:  restoreDir,
-		Verify:     true,
-	}), "a prune during the backup must not delete the backup's blobs "+
-		"or its db.zst.age")
-
-	assertRestoredTree(t, fs, restoreDir, testFiles)
-}
-
-// TestPruneKeepsUnreferencedBlobWithNoTime checks that a blob no
-// manifest lists, whose listing gives no modification time (as an S3
-// listing entry without LastModified does), is kept and counted with
-// the blobs too new to delete: its age is unknown.
-func TestPruneKeepsUnreferencedBlobWithNoTime(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	env := newListEnv(t)
-
-	// Written into the mock store's map directly rather than through
-	// Put, so its listing gives no time.
-	blobKey := "blobs/" + testBlobHashA[:2] + "/" + testBlobHashA[2:4] +
-		"/" + testBlobHashA
-	env.store.data[blobKey] = []byte("blob")
-
-	require.NoError(t, env.v.PruneBlobs(&vaultik.PruneOptions{JSON: true}))
-
-	assert.True(t, env.store.hasKey(blobKey),
-		"a blob of unknown age must be kept")
-
-	var result vaultik.PruneBlobsResult
-
-	require.NoError(t, json.Unmarshal(env.stdout.Bytes(), &result))
-	assert.Equal(t, 0, result.BlobsDeleted)
-	assert.Equal(t, 1, result.BlobsTooNew)
-}
-
-// TestPruneDeletesUnreferencedBlobOlderThanGracePeriod checks that the
-// grace period only delays deletion: a blob no manifest lists is deleted
-// once it is older than the grace period, and kept and counted until
-// then.
-func TestPruneDeletesUnreferencedBlobOlderThanGracePeriod(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := t.TempDir()
-
-	store, err := storage.NewFileStorer(storeDir)
-	require.NoError(t, err)
-
-	oldKey := "blobs/" + testBlobHashA[:2] + "/" + testBlobHashA[2:4] +
-		"/" + testBlobHashA
-	newKey := "blobs/" + testBlobHashB[:2] + "/" + testBlobHashB[2:4] +
-		"/" + testBlobHashB
-
-	for _, key := range []string{oldKey, newKey} {
-		require.NoError(t, store.Put(ctx, key, strings.NewReader("blob")))
-	}
-
-	gracePeriod := time.Hour
-	beforeGracePeriod := time.Now().Add(-gracePeriod - time.Minute)
-	require.NoError(t, os.Chtimes(filepath.Join(storeDir, oldKey),
-		beforeGracePeriod, beforeGracePeriod))
-
-	stdout := &bytes.Buffer{}
-	v := &vaultik.Vaultik{
-		Config:  &config.Config{PruneGracePeriod: gracePeriod},
-		Storage: store,
-		Stdout:  stdout,
-		UI:      ui.NewWithColor(stdout, false),
-	}
-	v.SetContext(ctx)
-
-	require.NoError(t, v.PruneBlobs(&vaultik.PruneOptions{JSON: true}))
-
-	_, err = store.Stat(ctx, oldKey)
-	require.ErrorIs(t, err, storage.ErrNotFound,
-		"a blob older than the grace period must be deleted")
-
-	_, err = store.Stat(ctx, newKey)
-	require.NoError(t, err, "a blob newer than the grace period must be kept")
-
-	var result vaultik.PruneBlobsResult
-
-	require.NoError(t, json.Unmarshal(stdout.Bytes(), &result))
-	assert.Equal(t, 1, result.BlobsDeleted)
-	assert.Equal(t, 1, result.BlobsTooNew)
-}

internal/vaultik/prune_metadata_dir_test.go

@@ -1,225 +0,0 @@
-package vaultik_test
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"os"
-	"path/filepath"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/config"
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/snapshot"
-	"sneak.berlin/go/vaultik/internal/storage"
-	"sneak.berlin/go/vaultik/internal/storage/faultstore"
-	"sneak.berlin/go/vaultik/internal/ui"
-	"sneak.berlin/go/vaultik/internal/vaultik"
-)
-
-// metadataObjectKey returns the key of the named file in the metadata
-// directory of the snapshot with the given human ID.
-func metadataObjectKey(snapshotID, name string) string {
-	return "metadata/" + snapshot.RemoteSnapshotKey(snapshotID) + "/" + name
-}
-
-// TestPruneDeletesMetadataDirWithoutManifestOlderThanGracePeriod checks
-// that prune deletes a directory under metadata/ holding only
-// db.zst.age, as a backup leaves when its manifest upload fails, once it
-// is older than the grace period, and keeps one newer than that. A
-// directory with a manifest is never deleted, however old.
-func TestPruneDeletesMetadataDirWithoutManifestOlderThanGracePeriod(
-	t *testing.T,
-) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := t.TempDir()
-
-	store, err := storage.NewFileStorer(storeDir)
-	require.NoError(t, err)
-
-	const (
-		oldID      = "testhost_home_2026-01-01T00:00:00Z"
-		newID      = "testhost_home_2026-01-02T00:00:00Z"
-		completeID = "testhost_home_2026-01-03T00:00:00Z"
-	)
-
-	oldDB := metadataObjectKey(oldID, "db.zst.age")
-	newDB := metadataObjectKey(newID, "db.zst.age")
-	completeDB := metadataObjectKey(completeID, "db.zst.age")
-	completeManifest := metadataObjectKey(completeID, "manifest.json.zst")
-
-	manifest, err := snapshot.EncodeManifest(&snapshot.Manifest{
-		SnapshotID: snapshot.RemoteSnapshotKey(completeID),
-	}, 3)
-	require.NoError(t, err)
-
-	for _, key := range []string{oldDB, newDB, completeDB} {
-		require.NoError(t, store.Put(ctx, key, strings.NewReader("db")))
-	}
-
-	require.NoError(t, store.Put(ctx, completeManifest,
-		bytes.NewReader(manifest)))
-
-	gracePeriod := time.Hour
-	beforeGracePeriod := time.Now().Add(-gracePeriod - time.Minute)
-
-	for _, key := range []string{oldDB, completeDB, completeManifest} {
-		require.NoError(t, os.Chtimes(filepath.Join(storeDir, key),
-			beforeGracePeriod, beforeGracePeriod))
-	}
-
-	stdout := &bytes.Buffer{}
-	v := &vaultik.Vaultik{
-		Config:  &config.Config{PruneGracePeriod: gracePeriod},
-		Storage: store,
-		Stdout:  stdout,
-		UI:      ui.NewWithColor(stdout, false),
-	}
-	v.SetContext(ctx)
-
-	require.NoError(t, v.PruneBlobs(&vaultik.PruneOptions{JSON: true}))
-
-	_, err = store.Stat(ctx, oldDB)
-	require.ErrorIs(t, err, storage.ErrNotFound,
-		"a directory with no manifest older than the grace period "+
-			"must be deleted")
-
-	for _, key := range []string{newDB, completeDB, completeManifest} {
-		_, err = store.Stat(ctx, key)
-		require.NoError(t, err, "%s must be kept", key)
-	}
-
-	var result vaultik.PruneBlobsResult
-
-	require.NoError(t, json.Unmarshal(stdout.Bytes(), &result))
-	assert.Equal(t, 1, result.MetadataDirsDeleted)
-}
-
-// TestPruneKeepsMetadataDirClaimedUnknownAgeOrNotRemoteKey checks that
-// prune --force keeps a directory under metadata/ with no manifest when a
-// local snapshot record claims it, when the listing gives no time for an
-// object in it, or when its name is not a remote key. A fourth such
-// directory is named, deleted and reported, although there are no
-// unreferenced blobs to delete.
-func TestPruneKeepsMetadataDirClaimedUnknownAgeOrNotRemoteKey(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	env := newListEnv(t)
-
-	const (
-		claimedID = "testhost_home_2026-01-01T00:00:00Z"
-		leftID    = "testhost_home_2026-01-03T00:00:00Z"
-	)
-
-	env.addLocal(t, claimedID, time.Now().Add(-time.Hour))
-
-	claimedDB := metadataObjectKey(claimedID, "db.zst.age")
-	unknownAgeDB := metadataObjectKey("testhost_home_2026-01-02T00:00:00Z",
-		"db.zst.age")
-	leftDB := metadataObjectKey(leftID, "db.zst.age")
-	notRemoteKeyDB := "metadata/not-a-remote-key/db.zst.age"
-
-	for _, key := range []string{claimedDB, leftDB, notRemoteKeyDB} {
-		require.NoError(t, env.store.Put(ctx, key, strings.NewReader("db")))
-	}
-
-	// Written into the mock store's map directly rather than through
-	// Put, so its listing gives no time.
-	env.store.data[unknownAgeDB] = []byte("db")
-
-	require.NoError(t, env.v.PruneBlobs(&vaultik.PruneOptions{Force: true}))
-
-	assert.True(t, env.store.hasKey(claimedDB),
-		"a directory a local snapshot record claims must be kept")
-	assert.True(t, env.store.hasKey(unknownAgeDB),
-		"a directory holding an object of unknown age must be kept")
-	assert.True(t, env.store.hasKey(notRemoteKeyDB),
-		"a directory whose name is not a remote key must be kept")
-	assert.False(t, env.store.hasKey(leftDB),
-		"a directory with no manifest, unclaimed and old, must be deleted")
-
-	output := env.stdout.String()
-
-	assert.Contains(t, output, "Found 1 metadata director(ies) left by "+
-		"backups that stopped before their manifest:")
-	assert.Contains(t, output,
-		"metadata/"+snapshot.RemoteSnapshotKey(leftID)+"/")
-	assert.NotContains(t, output, "not-a-remote-key")
-	assert.Contains(t, output,
-		"Deleted 1 metadata director(ies) with no manifest.")
-	assert.NotContains(t, output, "No unreferenced blobs to remove.")
-}
-
-// TestPruneDeclinedKeepsMetadataDirWithoutManifest checks that the prompt
-// names a directory under metadata/ with no manifest that prune is about
-// to delete, and that answering no keeps it.
-func TestPruneDeclinedKeepsMetadataDirWithoutManifest(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	env := newListEnv(t)
-
-	const leftID = "testhost_home_2026-01-01T00:00:00Z"
-
-	leftDB := metadataObjectKey(leftID, "db.zst.age")
-	require.NoError(t, env.store.Put(context.Background(), leftDB,
-		strings.NewReader("db")))
-
-	env.v.Stdin = strings.NewReader("n\n")
-
-	require.NoError(t, env.v.PruneBlobs(&vaultik.PruneOptions{}))
-
-	assert.True(t, env.store.hasKey(leftDB),
-		"a declined prune must keep the directory")
-
-	output := env.stdout.String()
-
-	assert.Contains(t, output,
-		"  metadata/"+snapshot.RemoteSnapshotKey(leftID)+"/\n")
-	assert.Contains(t, output, "Delete 1 metadata director(ies)? [y/N] ")
-	assert.Contains(t, output, "Cancelled")
-	assert.NotContains(t, output, "Deleted")
-}
-
-// TestPruneFailedMetadataDirDeleteReturnsError checks that prune --json
-// counts a directory under metadata/ with no manifest that it cannot
-// delete, and then returns an error, so the command exits non-zero.
-func TestPruneFailedMetadataDirDeleteReturnsError(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	env := newListEnv(t)
-
-	leftDB := metadataObjectKey("testhost_home_2026-01-01T00:00:00Z",
-		"db.zst.age")
-	require.NoError(t, env.store.Put(context.Background(), leftDB,
-		strings.NewReader("db")))
-
-	store := faultstore.New(env.store)
-	store.OnDelete = func(key string) bool {
-		return strings.HasPrefix(key, "metadata/")
-	}
-	env.v.Storage = store
-
-	err := env.v.PruneBlobs(&vaultik.PruneOptions{JSON: true})
-
-	require.ErrorContains(t, err,
-		"1 metadata director(ies) with no manifest could not be deleted")
-	assert.True(t, env.store.hasKey(leftDB))
-
-	var result vaultik.PruneBlobsResult
-
-	require.NoError(t, json.Unmarshal(env.stdout.Bytes(), &result),
-		"stdout must hold the JSON document, got:\n%s", env.stdout.String())
-	assert.Equal(t, 1, result.MetadataDirsFailed)
-	assert.Equal(t, 0, result.MetadataDirsDeleted)
-}

internal/vaultik/purge_local_remote_consistency_test.go

@@ -14,7 +14,6 @@ import (
 	"sneak.berlin/go/vaultik/internal/log"
 	"sneak.berlin/go/vaultik/internal/snapshot"
 	"sneak.berlin/go/vaultik/internal/types"
-	"sneak.berlin/go/vaultik/internal/ui"
 	"sneak.berlin/go/vaultik/internal/vaultik"
 )
 
@@ -35,9 +34,6 @@ func setupConsistencyTest(
 	repos := database.NewRepositories(db)
 	mockStorage := NewMockStorer()
 
-	// A backup wrote to this destination, so it carries the marker.
-	require.NoError(t, mockStorage.Put(ctx, markerFile, strings.NewReader("")))
-
 	for _, id := range snapshotIDs {
 		parts := strings.Split(id, "_")
 		startedAt, err := time.Parse(time.RFC3339, parts[len(parts)-1])
@@ -62,16 +58,13 @@ func setupConsistencyTest(
 		require.NoError(t, err)
 	}
 
-	stdout := &bytes.Buffer{}
-
 	v := &vaultik.Vaultik{
 		Storage:      mockStorage,
 		Repositories: repos,
 		DB:           db,
-		Stdout:       stdout,
+		Stdout:       &bytes.Buffer{},
 		Stderr:       &bytes.Buffer{},
 		Stdin:        &bytes.Buffer{},
-		UI:           ui.NewWithColor(stdout, false),
 	}
 	v.SetContext(ctx)
 

internal/vaultik/purge_per_name_test.go

@@ -14,7 +14,6 @@ import (
 	"sneak.berlin/go/vaultik/internal/log"
 	"sneak.berlin/go/vaultik/internal/snapshot"
 	"sneak.berlin/go/vaultik/internal/types"
-	"sneak.berlin/go/vaultik/internal/ui"
 	"sneak.berlin/go/vaultik/internal/vaultik"
 )
 
@@ -45,9 +44,6 @@ func setupPurgeTest(
 	repos := database.NewRepositories(db)
 	mockStorage := NewMockStorer()
 
-	// A backup wrote to this destination, so it carries the marker.
-	require.NoError(t, mockStorage.Put(ctx, markerFile, strings.NewReader("")))
-
 	// Insert each snapshot into the DB and create remote metadata stubs.
 	// Use timestamps parsed from snapshot IDs for realistic ordering.
 	for _, id := range snapshotIDs {
@@ -90,7 +86,6 @@ func setupPurgeTest(
 		Stdout:       stdout,
 		Stderr:       stderr,
 		Stdin:        stdin,
-		UI:           ui.NewWithColor(stdout, false),
 	}
 	v.SetContext(ctx)
 
@@ -272,30 +267,6 @@ func TestPurgeOlderThan_WithNameFilter(t *testing.T) {
 	assert.Contains(t, remaining, snapHomeT0)
 }
 
-func TestPurgeOlderThan_TooLargeDeletesNothing(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	snapshotIDs := []string{snapHomeT0, snapHomeT1}
-
-	v := setupPurgeTest(t, snapHostname, snapshotIDs)
-
-	err := v.PurgeSnapshotsWithOptions(&vaultik.SnapshotPurgeOptions{
-		OlderThan: "1000y",
-		Force:     true,
-	})
-	require.EqualError(t, err,
-		`invalid duration: "1000y" is longer than about 292 years`)
-
-	err = v.PurgeSnapshotsWithOptions(&vaultik.SnapshotPurgeOptions{
-		OlderThan: "292y",
-		Force:     true,
-	})
-	require.NoError(t, err)
-
-	assert.ElementsMatch(t, snapshotIDs, listRemainingSnapshots(t, v))
-}
-
 func TestPurgeKeepLatest_ThreeNames(t *testing.T) {
 	log.Initialize(log.Config{})
 	t.Parallel()

internal/vaultik/remote_info_test.go

@@ -185,39 +185,6 @@ func TestRemoteInfo_SkipsNonConformingMetadataName(t *testing.T) {
 	assert.NotContains(t, doc, "unreadable_manifests")
 }
 
-// TestRemoteInfo_DoesNotCountNonBlobFileUnderBlobs checks that a file
-// under blobs/ whose name is not a blob hash is not counted as a blob.
-// prune never deletes such a file, so counting it as an orphaned blob
-// would advise a prune that removes nothing.
-func TestRemoteInfo_DoesNotCountNonBlobFileUnderBlobs(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	env := newListEnv(t)
-	env.addRemote(t, listRemoteID, time.Date(2026, 3, 2, 0, 0, 0, 0, time.UTC))
-	addBlob(t, env.store.testStorer, testBlobHashA)
-	require.NoError(t, env.store.Put(context.Background(),
-		"blobs/"+testBlobHashA[:2]+"/"+testBlobHashA[2:4]+"/.DS_Store",
-		bytes.NewReader([]byte("junk"))))
-
-	require.NoError(t, env.v.RemoteInfo(false))
-
-	text := env.stdout.String()
-	assert.Contains(t, text, "Total blobs on remote:      1 (")
-	assert.Contains(t, text, "Orphaned (unreferenced):    0 (")
-	assert.NotContains(t, text, "vaultik prune")
-
-	env.stdout.Reset()
-	require.NoError(t, env.v.RemoteInfo(true))
-
-	var doc map[string]any
-
-	require.NoError(t, json.Unmarshal(env.stdout.Bytes(), &doc))
-	assert.InDelta(t, 1, doc["total_blob_count"], 0)
-	assert.InDelta(t, 0, doc["orphaned_blob_count"], 0)
-	assert.InDelta(t, 0, doc["orphaned_blob_size"], 0)
-}
-
 // TestRemoteInfo_DirectoryWithoutManifestLeavesOrphansKnown checks that
 // a directory under metadata/ holding no manifest.json.zst, such as one
 // left by a backup interrupted before its manifest upload, leaves the

internal/vaultik/remove_quiet_test.go

@@ -1,152 +0,0 @@
-package vaultik_test
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"path/filepath"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/log"
-	"sneak.berlin/go/vaultik/internal/ui"
-	"sneak.berlin/go/vaultik/internal/vaultik"
-)
-
-// TestPurgeSnapshots_QuietSuppressesReport checks that `snapshot purge
-// --keep-latest --force` under --quiet deletes the older snapshot and
-// prints nothing.
-func TestPurgeSnapshots_QuietSuppressesReport(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	v := setupPurgeTest(t, snapHostname, []string{snapHomeT0, snapHomeT1})
-
-	var out bytes.Buffer
-
-	v.Stdout = &out
-	v.UI = ui.NewWithColor(&out, false)
-	v.UI.SetQuiet(true)
-
-	require.NoError(t, v.PurgeSnapshotsWithOptions(&vaultik.SnapshotPurgeOptions{
-		KeepLatest: true,
-		Force:      true,
-	}))
-
-	assert.Equal(t, []string{snapHomeT1}, listRemainingSnapshots(t, v))
-	assert.Empty(t, out.String())
-}
-
-// TestPurgeSnapshots_QuietPromptListsSnapshots checks that `snapshot
-// purge --keep-latest` without --force still lists the snapshots its
-// prompt asks to delete under --quiet.
-func TestPurgeSnapshots_QuietPromptListsSnapshots(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	v := setupPurgeTest(t, snapHostname, []string{snapHomeT0, snapHomeT1})
-
-	var out bytes.Buffer
-
-	v.Stdout = &out
-	v.UI = ui.NewWithColor(&out, false)
-	v.UI.SetQuiet(true)
-
-	// Stdin is empty, so the prompt reads no answer and cancels.
-	require.NoError(t, v.PurgeSnapshotsWithOptions(&vaultik.SnapshotPurgeOptions{
-		KeepLatest: true,
-	}))
-
-	assert.Contains(t, out.String(), snapHomeT0)
-	assert.Contains(t, out.String(), "Delete 1 snapshot(s)? [y/N]")
-	assert.Len(t, listRemainingSnapshots(t, v), 2)
-}
-
-// TestPruneBlobs_QuietPromptShowsBlobTotal checks that `prune` without
-// --force still states the count and total size of the blobs its prompt
-// asks to delete under --quiet.
-func TestPruneBlobs_QuietPromptShowsBlobTotal(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	env := newListEnv(t)
-	env.v.UI.SetQuiet(true)
-
-	// The store holds no manifest, so nothing references this blob.
-	addBlob(t, env.store.testStorer, testBlobHashA)
-
-	// Stdin is empty, so the prompt reads no answer and cancels.
-	require.NoError(t, env.v.PruneBlobs(&vaultik.PruneOptions{}))
-
-	assert.Contains(t, env.stdout.String(),
-		"Found 1 unreferenced blob(s) totaling")
-	assert.Contains(t, env.stdout.String(),
-		"Delete 1 unreferenced blob(s)? [y/N]")
-}
-
-// TestRemoveSnapshot_QuietSuppressesReport checks that `snapshot remove`
-// under --quiet prints nothing with --dry-run or with --force, and that
-// the --json document still prints.
-func TestRemoveSnapshot_QuietSuppressesReport(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	newQuietRemover := func() (*vaultik.TestVaultik, *testStorer) {
-		store := newTestStorer()
-		addManifest(t, store, "snapshot-001", nil)
-
-		// A backup wrote to this destination, so it carries the marker.
-		require.NoError(t, store.Put(context.Background(), markerFile,
-			bytes.NewReader(nil)))
-
-		tv := vaultik.NewForTesting(store)
-		tv.Repositories = newLocalIndex(t, "snapshot-001")
-		tv.UI.SetQuiet(true)
-
-		return tv, store
-	}
-
-	tv, store := newQuietRemover()
-
-	_, err := tv.RemoveSnapshot("snapshot-001",
-		&vaultik.RemoveOptions{DryRun: true})
-	require.NoError(t, err)
-	assert.Empty(t, tv.Stdout.String(),
-		"--dry-run must print nothing under --quiet")
-
-	_, err = tv.RemoveSnapshot("snapshot-001",
-		&vaultik.RemoveOptions{Force: true})
-	require.NoError(t, err)
-	assert.False(t, store.hasKey(remoteKeyPath("snapshot-001")))
-	assert.Empty(t, tv.Stdout.String(),
-		"--force must print nothing under --quiet")
-
-	tv, _ = newQuietRemover()
-
-	_, err = tv.RemoveSnapshot("snapshot-001",
-		&vaultik.RemoveOptions{JSON: true})
-	require.NoError(t, err)
-
-	var result vaultik.RemoveResult
-
-	require.NoError(t, json.Unmarshal(tv.Stdout.Bytes(), &result),
-		"the --json document must still print under --quiet")
-	assert.True(t, result.RemoteRemoved)
-}
-
-// TestNukeRemote_QuietSuppressesReport checks that `remote nuke --force`
-// under --quiet prints nothing while it removes a snapshot's metadata
-// and its blobs.
-func TestNukeRemote_QuietSuppressesReport(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	ctx := context.Background()
-	storeDir := filepath.Join(t.TempDir(), "store")
-	v, _, out := backUpToFileDestination(ctx, t, storeDir)
-	v.UI.SetQuiet(true)
-
-	require.NoError(t, v.NukeRemote(true))
-	assert.Empty(t, out.String())
-}

internal/vaultik/remove_snapshot_test.go

@@ -3,22 +3,17 @@ package vaultik_test
 import (
 	"bytes"
 	"context"
-	"database/sql"
 	"io"
 	"strings"
 	"sync"
 	"testing"
-	"time"
 
 	"github.com/klauspost/compress/zstd"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
-	"sneak.berlin/go/vaultik/internal/database"
 	"sneak.berlin/go/vaultik/internal/log"
 	"sneak.berlin/go/vaultik/internal/snapshot"
 	"sneak.berlin/go/vaultik/internal/storage"
-	"sneak.berlin/go/vaultik/internal/storage/faultstore"
-	"sneak.berlin/go/vaultik/internal/types"
 	"sneak.berlin/go/vaultik/internal/vaultik"
 )
 
@@ -26,14 +21,11 @@ import (
 type testStorer struct {
 	mu   sync.Mutex
 	data map[string][]byte
-	// putTimes holds when Put stored each object; ListStream reports it.
-	putTimes map[string]time.Time
 }
 
 func newTestStorer() *testStorer {
 	return &testStorer{
-		data:     make(map[string][]byte),
+		data: make(map[string][]byte),
-		putTimes: make(map[string]time.Time),
 	}
 }
 
@@ -47,7 +39,6 @@ func (s *testStorer) Put(_ context.Context, key string, reader io.Reader) error
 	}
 
 	s.data[key] = data
-	s.putTimes[key] = time.Now().UTC()
 
 	return nil
 }
@@ -91,7 +82,6 @@ func (s *testStorer) Delete(_ context.Context, key string) error {
 	defer s.mu.Unlock()
 
 	delete(s.data, key)
-	delete(s.putTimes, key)
 
 	return nil
 }
@@ -125,9 +115,8 @@ func (s *testStorer) ListStream(
 		for key, data := range s.data {
 			if prefix == "" || strings.HasPrefix(key, prefix) {
 				ch <- storage.ObjectInfo{
-					Key:     key,
+					Key:  key,
-					Size:    int64(len(data)),
+					Size: int64(len(data)),
-					ModTime: s.putTimes[key],
 				}
 			}
 		}
@@ -136,12 +125,6 @@ func (s *testStorer) ListStream(
 	return ch
 }
 
-// DeletePartialUploads has nothing to remove: Put stores each object
-// under its key at once.
-func (s *testStorer) DeletePartialUploads(_ context.Context, _ string) error {
-	return nil
-}
-
 func (s *testStorer) Info() storage.Info {
 	return storage.Info{
 		Type:     testLabel,
@@ -225,37 +208,6 @@ func addBlob(t *testing.T, store *testStorer, hash string) {
 	require.NoError(t, err)
 }
 
-// newLocalIndex returns an in-memory local index holding a completed
-// snapshot row for each of ids.
-func newLocalIndex(t *testing.T, ids ...string) *database.Repositories {
-	t.Helper()
-
-	ctx := context.Background()
-
-	db, err := database.New(ctx, ":memory:")
-	require.NoError(t, err)
-	t.Cleanup(func() { _ = db.Close() })
-
-	repos := database.NewRepositories(db)
-
-	for _, id := range ids {
-		completedAt := time.Now().UTC()
-		snap := &database.Snapshot{
-			ID:          types.SnapshotID(id),
-			Hostname:    snapHostname,
-			StartedAt:   completedAt,
-			CompletedAt: &completedAt,
-		}
-
-		err = repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
-			return repos.Snapshots.Create(ctx, tx, snap)
-		})
-		require.NoError(t, err)
-	}
-
-	return repos
-}
-
 // ============================================================================
 // Unit Tests for RemoveSnapshot
 // ============================================================================
@@ -275,7 +227,6 @@ func TestRemoveSnapshot_LocalOnly_PreservesRemote(t *testing.T) {
 	addBlob(t, store, blobA)
 
 	tv := vaultik.NewForTesting(store)
-	tv.Repositories = newLocalIndex(t, "snapshot-001")
 
 	opts := &vaultik.RemoveOptions{Force: true, LocalOnly: true}
 	result, err := tv.RemoveSnapshot("snapshot-001", opts)
@@ -310,12 +261,7 @@ func TestRemoveSnapshot_DefaultRemovesMetadataNotBlobs(t *testing.T) {
 	addBlob(t, store, blobUnique)
 	addBlob(t, store, blobShared)
 
-	// A backup wrote to this destination, so it carries the marker.
-	require.NoError(t, store.Put(context.Background(), markerFile,
-		bytes.NewReader(nil)))
-
 	tv := vaultik.NewForTesting(store)
-	tv.Repositories = newLocalIndex(t, "snapshot-001", "snapshot-002")
 
 	opts := &vaultik.RemoveOptions{Force: true}
 	result, err := tv.RemoveSnapshot("snapshot-001", opts)
@@ -361,128 +307,7 @@ func TestRemoveSnapshot_DryRun(t *testing.T) {
 	assert.True(t, store.hasKey("blobs/aa/aa/"+blobA))
 	assert.True(t, store.hasKey(remoteKeyPath("snapshot-001")))
 
-	assert.Contains(t, tv.Stdout.String(), "Dry run: no changes made.")
+	assert.Contains(t, tv.Stdout.String(), "[Dry run - no changes made]")
-}
-
-// TestRemoveSnapshot_UnknownIDIsError checks that an ID naming no
-// snapshot in the local index or on the destination store is an error
-// under every option, and that nothing is reported as removed.
-func TestRemoveSnapshot_UnknownIDIsError(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	for name, opts := range map[string]vaultik.RemoveOptions{
-		"force":      {Force: true},
-		"json":       {JSON: true},
-		"dry-run":    {Force: true, DryRun: true},
-		"local-only": {Force: true, LocalOnly: true},
-	} {
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			store := newTestStorer()
-			addManifest(t, store, "snapshot-001", nil)
-
-			// A backup wrote to this destination, so it carries the marker.
-			require.NoError(t, store.Put(context.Background(), markerFile,
-				bytes.NewReader(nil)))
-
-			tv := vaultik.NewForTesting(store)
-			tv.Repositories = newLocalIndex(t, "snapshot-001")
-
-			result, err := tv.RemoveSnapshot("snapshot-999", &opts)
-
-			require.ErrorContains(t, err, "snapshot not found")
-			assert.False(t, result.RemoteRemoved)
-			assert.Empty(t, tv.Stdout.String())
-			assert.True(t, store.hasKey(remoteKeyPath("snapshot-001")))
-		})
-	}
-}
-
-// TestRemoveSnapshot_NoMetadataOnDestination checks that removing a
-// snapshot whose metadata is not on the destination store does not
-// report metadata removed from it.
-func TestRemoveSnapshot_NoMetadataOnDestination(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	// A backup wrote to this destination, so it carries the marker.
-	store := newTestStorer()
-	require.NoError(t, store.Put(context.Background(), markerFile,
-		bytes.NewReader(nil)))
-
-	tv := vaultik.NewForTesting(store)
-	tv.Repositories = newLocalIndex(t, "snapshot-001")
-
-	result, err := tv.RemoveSnapshot("snapshot-001",
-		&vaultik.RemoveOptions{Force: true})
-
-	require.NoError(t, err)
-	assert.False(t, result.RemoteRemoved)
-
-	out := tv.Stdout.String()
-	assert.Contains(t, out, "Removed snapshot 'snapshot-001' from local database")
-	assert.NotContains(t, out, "Removed snapshot metadata from remote storage")
-}
-
-// TestRemoveSnapshot_NotInLocalIndex checks that removing a snapshot
-// only the destination store holds removes its metadata there without
-// reporting a removal from the local database.
-func TestRemoveSnapshot_NotInLocalIndex(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	store := newTestStorer()
-	addManifest(t, store, "snapshot-001", nil)
-
-	tv := vaultik.NewForTesting(store)
-	tv.Repositories = newLocalIndex(t)
-
-	result, err := tv.RemoveSnapshot("snapshot-001",
-		&vaultik.RemoveOptions{Force: true})
-
-	require.NoError(t, err)
-	assert.True(t, result.RemoteRemoved)
-	assert.False(t, store.hasKey(remoteKeyPath("snapshot-001")))
-
-	out := tv.Stdout.String()
-	assert.NotContains(t, out, "from local database")
-	assert.Contains(t, out, "Removed snapshot metadata from remote storage")
-}
-
-// TestRemoveSnapshot_NotInLocalIndexDeleteFails checks that removing a
-// snapshot only the destination store holds fails when its metadata
-// cannot be deleted there, under --force and under --json: nothing was
-// removed, so the command must not succeed.
-func TestRemoveSnapshot_NotInLocalIndexDeleteFails(t *testing.T) {
-	log.Initialize(log.Config{})
-	t.Parallel()
-
-	for name, opts := range map[string]vaultik.RemoveOptions{
-		"force": {Force: true},
-		"json":  {JSON: true},
-	} {
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			store := newTestStorer()
-			addManifest(t, store, "snapshot-001", nil)
-
-			faulty := faultstore.New(store)
-			faulty.OnDelete = func(string) bool { return true }
-
-			tv := vaultik.NewForTesting(faulty)
-			tv.Repositories = newLocalIndex(t)
-
-			result, err := tv.RemoveSnapshot("snapshot-001", &opts)
-
-			require.ErrorIs(t, err, faultstore.ErrInjectedDelete)
-			assert.False(t, result.RemoteRemoved)
-			assert.True(t, store.hasKey(remoteKeyPath("snapshot-001")))
-			assert.Empty(t, tv.Stdout.String())
-		})
-	}
 }
 
 func TestRemoveAllSnapshots_RequiresForce(t *testing.T) {
@@ -530,8 +355,7 @@ func TestRemoveAllSnapshots_WithForce(t *testing.T) {
 	out := tv.Stdout.String()
 	assert.Contains(t, out, "Removed 2 snapshot(s)")
 	assert.Contains(t, out, "Removed snapshot metadata from remote storage")
-	// Remote nuke, the only caller, deletes the blobs next itself.
+	assert.Contains(t, out, "vaultik prune")
-	assert.NotContains(t, out, "vaultik prune")
 }
 
 func TestRemoveAllSnapshots_DryRun(t *testing.T) {
@@ -558,7 +382,7 @@ func TestRemoveAllSnapshots_DryRun(t *testing.T) {
 
 	assert.Equal(t, initialCount, store.keyCount())
 
-	assert.Contains(t, tv.Stdout.String(), "Dry run: no changes made.")
+	assert.Contains(t, tv.Stdout.String(), "[Dry run - no changes made]")
 }
 
 func TestRemoveAllSnapshots_NoSnapshots(t *testing.T) {

internal/vaultik/restore.go

@@ -12,7 +12,6 @@ import (
 	"path/filepath"
 	"slices"
 	"strings"
-	"syscall"
 	"time"
 
 	"filippo.io/age"
@@ -28,7 +27,6 @@ import (
 // Sentinel errors for restore failures.
 var (
 	errFilesFailedRestore    = errors.New("file(s) failed to restore")
-	errPathsNotInSnapshot    = errors.New("requested path(s) not in the snapshot")
 	errFilesFailedVerify     = errors.New("files failed verification")
 	errDecryptionKeyRequired = errors.New(
 		"decryption key required for restore\n\n" +
@@ -105,12 +103,11 @@ type RestoreResult struct {
 	BlobsDownloaded int
 	BytesDownloaded int64
 	Duration        time.Duration
-	FilesFailed     int
-	FailedFiles     []string // Paths of files that failed to restore
 	// Verification results (only populated if Verify option is set)
-	FilesVerified     int
+	FilesVerified int
-	BytesVerified     int64
+	BytesVerified int64
-	VerifyFailedFiles []string // Paths of restored files that failed verification
+	FilesFailed   int
+	FailedFiles   []string // Paths of files that failed verification
 }
 
 // Restore restores files from a snapshot to the target directory
@@ -152,20 +149,16 @@ func (v *Vaultik) Restore(opts *RestoreOptions) error {
 	repos := database.NewRepositories(tempDB)
 
 	// Step 2: Get list of files to restore
-	files, unmatched, err := v.getFilesToRestore(v.ctx, repos, opts.Paths)
+	files, err := v.getFilesToRestore(v.ctx, repos, opts.Paths)
 	if err != nil {
 		return fmt.Errorf("getting files to restore: %w", err)
 	}
 
-	// Named before anything is restored, so the names are shown even
-	// when the restore stops on an error.
-	unmatchedErr := v.reportUnmatchedPaths(unmatched)
-
 	if len(files) == 0 {
 		log.Warn("No files found to restore")
 		v.UI.Warningf("No files found to restore.")
 
-		return unmatchedErr
+		return nil
 	}
 
 	log.Info("Found files to restore", "count", len(files))
@@ -191,20 +184,6 @@ func (v *Vaultik) Restore(opts *RestoreOptions) error {
 
 	result.Duration = time.Since(startTime)
 
-	return v.finishRestore(repos, files, unmatchedErr, opts, result)
-}
-
-// finishRestore prints the restore summary and the post-restore
-// warnings, runs optional verification, and converts any failed-file
-// count into an error. Otherwise it returns unmatchedErr, the error for
-// the requested paths that matched nothing (nil when there are none).
-func (v *Vaultik) finishRestore(
-	repos *database.Repositories,
-	files []*database.File,
-	unmatchedErr error,
-	opts *RestoreOptions,
-	result *RestoreResult,
-) error {
 	log.Info("Restore complete",
 		"files_restored", result.FilesRestored,
 		"bytes_restored", ubytes(result.BytesRestored),
@@ -219,8 +198,21 @@ func (v *Vaultik) finishRestore(
 		v.UI.Duration(result.Duration),
 	)
 
+	return v.finishRestore(repos, files, opts, result)
+}
+
+// finishRestore emits the post-restore warnings, runs optional
+// verification, and converts any failed-file count into an error.
+func (v *Vaultik) finishRestore(
+	repos *database.Repositories,
+	files []*database.File,
+	opts *RestoreOptions,
+	result *RestoreResult,
+) error {
 	if os.Geteuid() != 0 {
-		v.warnIfOwnershipNotPreserved(files, opts.TargetDir)
+		v.UI.Warningf("Restore did not preserve file ownership: chown(2) " +
+			"requires root. Re-run as root (e.g. with sudo) if you need " +
+			"original UID/GID preserved.")
 	}
 
 	if result.FilesFailed > 0 {
@@ -243,60 +235,7 @@ func (v *Vaultik) finishRestore(
 		return fmt.Errorf("%d %w", result.FilesFailed, errFilesFailedRestore)
 	}
 
-	return unmatchedErr
+	return nil
-}
-
-// warnIfOwnershipNotPreserved warns once if some entry restored under
-// targetDir has another owner or group on disk than the snapshot
-// records. It is meant for a restore by a normal user, which changes no
-// owner or group: a new entry is owned by that user, and its group is
-// that user's, or the group of the directory it is created in on macOS
-// and in a setgid directory on Linux. An entry that is not on disk, or
-// whose filesystem reports no owner, is skipped.
-func (v *Vaultik) warnIfOwnershipNotPreserved(
-	files []*database.File, targetDir string,
-) {
-	for _, file := range files {
-		targetPath, err := containedRestorePath(
-			v.Fs, targetDir, file.Path.String())
-		if err != nil {
-			continue
-		}
-
-		info, err := lstatIfPossible(v.Fs, targetPath)
-		if err != nil {
-			continue
-		}
-
-		owner, ok := info.Sys().(*syscall.Stat_t)
-		if !ok {
-			continue
-		}
-
-		if owner.Uid != file.UID || owner.Gid != file.GID {
-			v.UI.Warningf("Restore did not preserve file ownership: chown(2) " +
-				"requires root. Re-run as root (e.g. with sudo) if you need " +
-				"original UID/GID preserved.")
-
-			return
-		}
-	}
-}
-
-// reportUnmatchedPaths warns, by name, about each requested path that
-// matched nothing in the snapshot, and returns an error counting them,
-// or nil when there are none.
-func (v *Vaultik) reportUnmatchedPaths(unmatched []string) error {
-	if len(unmatched) == 0 {
-		return nil
-	}
-
-	for _, path := range unmatched {
-		log.Warn("Requested path matches nothing in the snapshot", "path", path)
-		v.UI.Warningf("%s matches nothing in the snapshot.", v.UI.Path(path))
-	}
-
-	return fmt.Errorf("%d %w", len(unmatched), errPathsNotInSnapshot)
 }
 
 // restoreIdentities parses the configured age secret key once into every
@@ -359,33 +298,22 @@ func (v *Vaultik) restoreAllFiles(
 		_ = blobCache.Close()
 	}()
 
+	// Per-restore sweep state: every blob_size_limit/100 bytes written,
+	// scan the cache and delete any blob whose remaining file references
+	// are all already restored.
+	sweeper := newRestoreSweeper(v.ctx, repos, blobCache,
+		v.Config.BlobSizeLimit.Int64()/sweepIntervalDivisor)
+
 	blobByHash, blobIDToHash, err := v.buildBlobIndexes(repos)
 	if err != nil {
 		return nil, err
 	}
 
-	plan, unplanned, err := newRestorePlan(
+	plan, err := newRestorePlan(v.ctx, repos, files, chunkToBlobMap, blobIDToHash)
-		v.ctx, repos, files, chunkToBlobMap, blobIDToHash)
 	if err != nil {
 		return nil, fmt.Errorf("building restore plan: %w", err)
 	}
 
-	// Per-restore sweep state: every blob_size_limit/100 bytes written,
-	// scan the cache and delete any blob that no pending file in the
-	// plan references.
-	sweeper := newRestoreSweeper(plan, blobCache,
-		v.Config.BlobSizeLimit.Int64()/sweepIntervalDivisor)
-
-	// Ranging over files rather than the map reports them in a stable order.
-	for _, file := range files {
-		if planErr, ok := unplanned[file.ID]; ok {
-			err = v.handleRestoreFileError(plan, opts, result, file, file.ID, planErr)
-			if err != nil {
-				return nil, err
-			}
-		}
-	}
-
 	filesByID, totalBytesExpected := indexRestoreFiles(files)
 
 	v.UI.Beginf("Restoring %s files (%s) to %s.",
@@ -463,8 +391,10 @@ func (v *Vaultik) runRestoreLoop(
 			continue
 		}
 
-		// Drop the file from the plan's indexes so future picks ignore
+		// Record the file as restored so the sweeper can free blobs
-		// it and the sweeper can free blobs no pending file needs.
+		// once all referencing files are done, and drop it from the
+		// plan's indexes so future picks ignore it.
+		session.sweeper.fileRestored(fileID.String())
 		plan.finishFile(fileID)
 
 		processed++
@@ -717,34 +647,20 @@ func (v *Vaultik) handleRestoreVerification(
 	opts *RestoreOptions,
 	result *RestoreResult,
 ) error {
-	// A file that failed to restore was not written and is already
+	err := v.verifyRestoredFiles(v.ctx, repos, files, opts.TargetDir, result)
-	// reported as such, so it is not verified.
-	failedToRestore := make(map[string]bool, len(result.FailedFiles))
-	for _, path := range result.FailedFiles {
-		failedToRestore[path] = true
-	}
-
-	restored := make([]*database.File, 0, len(files))
-	for _, file := range files {
-		if !failedToRestore[file.Path.String()] {
-			restored = append(restored, file)
-		}
-	}
-
-	err := v.verifyRestoredFiles(v.ctx, repos, restored, opts.TargetDir, result)
 	if err != nil {
 		return fmt.Errorf("verification failed: %w", err)
 	}
 
-	if len(result.VerifyFailedFiles) > 0 {
+	if result.FilesFailed > 0 {
 		v.UI.Errorf("Verification failed: %s files did not match expected checksums.",
-			v.UI.Count(len(result.VerifyFailedFiles)))
+			v.UI.Count(result.FilesFailed))
 
-		for _, path := range result.VerifyFailedFiles {
+		for _, path := range result.FailedFiles {
 			v.UI.Detailf("%s", v.UI.Path(path))
 		}
 
-		return fmt.Errorf("%d %w", len(result.VerifyFailedFiles), errFilesFailedVerify)
+		return fmt.Errorf("%d %w", result.FilesFailed, errFilesFailedVerify)
 	}
 
 	v.UI.Completef("Verified %s files (%s).",
@@ -775,8 +691,6 @@ func (v *Vaultik) downloadSnapshotDB(
 		return nil, "", fmt.Errorf("downloading %s: %w", dbKey, err)
 	}
 
-	reader = newCloseOnCancelReader(v.ctx, reader)
-
 	defer func() { _ = reader.Close() }()
 
 	// Decrypt and decompress straight from the storage stream, then stream
@@ -898,34 +812,27 @@ func (v *Vaultik) materializeSnapshotDB(
 	return db, tempDir, nil
 }
 
-// getFilesToRestore returns the list of files to restore based on path
+// getFilesToRestore returns the list of files to restore based on path filters
-// filters, and the filters, as given, that matched no file.
 func (v *Vaultik) getFilesToRestore(
 	ctx context.Context, repos *database.Repositories, pathFilters []string,
-) ([]*database.File, []string, error) {
+) ([]*database.File, error) {
 	// If no filters, get all files
 	if len(pathFilters) == 0 {
-		files, err := repos.Files.ListAll(ctx)
+		return repos.Files.ListAll(ctx)
-
-		return files, nil, err
 	}
 
 	// Get files matching the path filters
-	var (
+	var result []*database.File
-		result    []*database.File
-		unmatched []string
-	)
 
 	seen := make(map[string]bool)
 
 	for _, filter := range pathFilters {
-		files, err := repos.Files.ListUnderPath(ctx, filepath.Clean(filter))
+		// Normalize the filter path
-		if err != nil {
+		filter = filepath.Clean(filter)
-			return nil, nil, fmt.Errorf("listing files under %s: %w", filter, err)
-		}
 
-		if len(files) == 0 {
+		files, err := repos.Files.ListUnderPath(ctx, filter)
-			unmatched = append(unmatched, filter)
+		if err != nil {
+			return nil, fmt.Errorf("listing files under %s: %w", filter, err)
 		}
 
 		for _, file := range files {
@@ -936,7 +843,7 @@ func (v *Vaultik) getFilesToRestore(
 		}
 	}
 
-	return result, unmatched, nil
+	return result, nil
 }
 
 // buildChunkToBlobMap creates a mapping from chunk hash to blob information
@@ -1001,9 +908,8 @@ type restoreSession struct {
 	// root can chown a file to an arbitrary UID/GID — non-root chown
 	// always fails with EPERM. Attempting it anyway produces N
 	// guaranteed-failed syscalls + N noisy debug lines, so we skip
-	// the call entirely as non-root; warnIfOwnershipNotPreserved warns
+	// the call entirely as non-root and emit one warning at the end
-	// once at the end of the restore if that left any owner or group
+	// of the restore explaining that ownership was not preserved.
-	// other than recorded.
 	runningAsRoot bool
 	// directories holds every restored directory, for
 	// applyDirectoryMetadata to finish after the restore loop.
@@ -1514,8 +1420,8 @@ func (v *Vaultik) verifyRestoredFiles(
 		if err != nil {
 			log.Error("File verification failed", "path", file.Path, "error", err)
 
-			result.VerifyFailedFiles = append(
+			result.FilesFailed++
-				result.VerifyFailedFiles, file.Path.String())
+			result.FailedFiles = append(result.FailedFiles, file.Path.String())
 		}
 
 		bytesProcessed += file.Size
@@ -1531,7 +1437,7 @@ func (v *Vaultik) verifyRestoredFiles(
 	log.Info("Verification complete",
 		"files_verified", result.FilesVerified,
 		"bytes_verified", ubytes(result.BytesVerified),
-		"files_failed", len(result.VerifyFailedFiles),
+		"files_failed", result.FilesFailed,
 	)
 
 	return nil

internal/vaultik/restore_another_machine_test.go

@@ -42,7 +42,7 @@ func TestRestoreOnAnotherMachine(t *testing.T) {
 	tempDir := t.TempDir()
 
 	dataDir := filepath.Join(tempDir, "source")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 

internal/vaultik/restore_interrupt_test.go

@@ -65,7 +65,7 @@ func TestRestoreCleansTempDirOnInterrupt(t *testing.T) {
 	root := t.TempDir()
 
 	dataDir := filepath.Join(root, "source")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(root, "remote")
 	restoreDir := filepath.Join(root, "restored")
 	dbPath := filepath.Join(root, "index.sqlite")
 
@@ -74,8 +74,7 @@ func TestRestoreCleansTempDirOnInterrupt(t *testing.T) {
 	buildLocalityFixture(t, fs, dataDir)
 
 	cfg, storer, snapshotID := setupLocalityBackup(
-		context.Background(), t, fs, dataDir, storeDir, dbPath,
+		context.Background(), t, fs, dataDir, storeDir, dbPath)
-		localitySourceBytes)
 
 	// Point the "" temp paths (the blob cache directory and the
 	// snapshot-database directory) at a private directory so the test can
@@ -143,14 +142,14 @@ func TestRestoreCleansTempDirOnInterrupt(t *testing.T) {
 }
 
 // scratchEntries returns the vaultik blob-cache and snapshot-database
-// scratch entries (restore's and deep verify's) currently present in dir.
+// scratch entries currently present in dir.
 func scratchEntries(t *testing.T, dir string) []string {
 	t.Helper()
 
 	var matches []string
 
 	for _, pattern := range []string{
-		"vaultik-blobcache-*", "vaultik-restore-*", "vaultik-verify-*",
+		"vaultik-blobcache-*", "vaultik-restore-*",
 	} {
 		found, err := filepath.Glob(filepath.Join(dir, pattern))
 		require.NoError(t, err)
@@ -207,141 +206,3 @@ func TestRestoreSkipErrorsCancelDuringBlobDownload(t *testing.T) {
 	assert.NotContains(t, out.String(), srcPath,
 		"the cancel was reported as a failed file")
 }
-
-// stallingStorer wraps a Storer so that each download of a key chosen by
-// stalls hands over the first half of the object and then stalls,
-// ignoring the context, as a file:// read on a hung USB stick or network
-// share does. Only closing the returned reader ends the stall.
-type stallingStorer struct {
-	storage.Storer
-
-	stalls  func(key string) bool
-	once    sync.Once
-	stalled chan struct{}
-}
-
-func newStallingStorer(
-	inner storage.Storer, stalls func(key string) bool,
-) *stallingStorer {
-	return &stallingStorer{
-		Storer:  inner,
-		stalls:  stalls,
-		stalled: make(chan struct{}),
-	}
-}
-
-func (s *stallingStorer) Get(
-	ctx context.Context, key string,
-) (io.ReadCloser, error) {
-	rc, err := s.Storer.Get(ctx, key)
-	if err != nil || !s.stalls(key) {
-		return rc, err
-	}
-
-	object, err := io.ReadAll(rc)
-	_ = rc.Close()
-
-	if err != nil {
-		return nil, err
-	}
-
-	// The writer is never closed, so once the first half has been read
-	// the next Read blocks until the reader is closed.
-	pr, pw := io.Pipe()
-
-	go func() {
-		_, _ = pw.Write(object[:len(object)/2])
-
-		s.once.Do(func() { close(s.stalled) })
-	}()
-
-	return pr, nil
-}
-
-// TestInterruptDuringStalledReadCleansTempDir stops a restore and a deep
-// verify while a read of a blob or of the snapshot database is stalled
-// on a source that ignores the context. Stopping must end that read, so
-// the operation unwinds and removes its decrypted scratch files well
-// within the shutdown timeout (issues #325 and #356).
-//
-// Not parallel: it points TMPDIR at a private directory (via t.Setenv)
-// so it can assert on exactly the scratch files the operation created.
-func TestInterruptDuringStalledReadCleansTempDir(t *testing.T) {
-	log.Initialize(log.Config{})
-
-	stalledReads := map[string]func(key string) bool{
-		"blob": func(key string) bool {
-			return strings.HasPrefix(key, "blobs/")
-		},
-		"snapshot database": func(key string) bool {
-			return strings.HasSuffix(key, "/db.zst.age")
-		},
-	}
-
-	operations := map[string]func(v *Vaultik, snapshotID, targetDir string) error{
-		"restore": func(v *Vaultik, snapshotID, targetDir string) error {
-			return v.Restore(&RestoreOptions{
-				SnapshotID: snapshotID,
-				TargetDir:  targetDir,
-			})
-		},
-		"deep verify": func(v *Vaultik, snapshotID, _ string) error {
-			return v.RunDeepVerify(snapshotID, &VerifyOptions{Deep: true})
-		},
-	}
-
-	for readName, stalls := range stalledReads {
-		for opName, op := range operations {
-			t.Run(readName+" read during "+opName, func(t *testing.T) {
-				fs := afero.NewOsFs()
-				root := t.TempDir()
-
-				// Random content, so the blob stays large enough to stall
-				// part-way through its compressed, encrypted body.
-				cfg, storer, snapshotID, _ := backupOneFile(context.Background(),
-					t, fs, root, "a.bin", randomBytes(t, 256*1024), 0o644)
-
-				scratch := filepath.Join(root, "scratch")
-				require.NoError(t, fs.MkdirAll(scratch, 0o755))
-				t.Setenv("TMPDIR", scratch)
-
-				stalling := newStallingStorer(storer, stalls)
-
-				ctx, cancel := context.WithCancel(context.Background())
-				defer cancel()
-
-				v := newRestoreVaultik(ctx, cfg, stalling, fs)
-				v.cancel = cancel
-
-				var opErr error
-
-				stop := v.StartOperation(func() {
-					opErr = op(v, snapshotID, filepath.Join(root, "restored"))
-				})
-
-				select {
-				case <-stalling.stalled:
-				case <-time.After(30 * time.Second):
-					t.Fatal("the operation never reached the stalled read")
-				}
-
-				// The snapshot database's temp directory is created just
-				// after its read starts, so it can appear after the stall.
-				require.Eventually(t, func() bool {
-					return len(scratchEntries(t, scratch)) > 0
-				}, 10*time.Second, 10*time.Millisecond,
-					"expected decrypted scratch files to exist mid-read")
-
-				stopCtx, stopCancel := context.WithTimeout(
-					context.Background(), 10*time.Second)
-				defer stopCancel()
-
-				require.True(t, stop(stopCtx),
-					"stop timed out; the stalled read was not interrupted")
-				require.ErrorIs(t, opErr, context.Canceled)
-				require.Empty(t, scratchEntries(t, scratch),
-					"decrypted scratch files remained after the interrupt")
-			})
-		}
-	}
-}

internal/vaultik/restore_locality_test.go

@@ -63,10 +63,6 @@ type localityCopy struct {
 	data []byte
 }
 
-// localitySourceBytes is the size of each source file of the locality
-// fixture.
-const localitySourceBytes = 1024 * 1024
-
 // buildLocalityFixture writes the adversarial source layout described
 // in TestRestoreLocalityAndReadAt: 15 sources of 1 MiB each (which the
 // backup packs into 3 blobs of 5 chunks) plus 9 interleaved-name copies
@@ -77,6 +73,7 @@ func buildLocalityFixture(
 	t.Helper()
 
 	const (
+		srcBytes   = 1024 * 1024
 		srcCount   = 15
 		blobsCount = 3
 		perBlob    = srcCount / blobsCount
@@ -86,7 +83,7 @@ func buildLocalityFixture(
 	for i := range srcCount {
 		s := &localitySource{
 			path: fmt.Sprintf("src-%03d.bin", i+1),
-			data: randomBytes(t, localitySourceBytes),
+			data: randomBytes(t, srcBytes),
 		}
 		sources[i] = s
 		require.NoError(t, afero.WriteFile(
@@ -118,20 +115,19 @@ func buildLocalityFixture(
 
 // setupLocalityBackup runs the backup half of the locality test: a
 // snapshot of dataDir into a file storer with sizes tuned so 15 one-chunk
-// files of srcBytes pack into 3 blobs. The index database is closed
+// files pack into 3 blobs. The index database is closed before returning
-// before returning so the restore half runs from remote bytes only.
+// so the restore half runs from remote bytes only.
 func setupLocalityBackup(
 	ctx context.Context, t *testing.T, fs afero.Fs,
-	dataDir, storeDir, dbPath string, srcBytes int64,
+	dataDir, storeDir, dbPath string,
 ) (*config.Config, *storage.FileStorer, string) {
 	t.Helper()
 
-	// An average chunk size of four times srcBytes makes the minimum
+	// chunkSize avg = 4 MiB makes minSize = 1 MiB, so a 1 MiB file
-	// chunk srcBytes, so each source file becomes one chunk. A blob limit
+	// becomes one chunk. maxBlobSize = 5 MiB packs exactly 5 chunks
-	// of five times srcBytes packs exactly 5 chunks per blob, yielding 3
+	// per blob, yielding 3 blobs from 15 source files.
-	// blobs from 15 source files.
+	chunkSize := int64(4 * 1024 * 1024)
-	chunkSize := 4 * srcBytes
+	maxBlobSize := int64(5 * 1024 * 1024)
-	maxBlobSize := 5 * srcBytes
 
 	storer, err := storage.NewFileStorer(storeDir)
 	require.NoError(t, err)
@@ -201,7 +197,7 @@ func TestRestoreLocalityAndReadAt(t *testing.T) {
 	tempDir := t.TempDir()
 
 	dataDir := filepath.Join(tempDir, "source")
-	storeDir := t.TempDir()
+	storeDir := filepath.Join(tempDir, "remote")
 	restoreDir := filepath.Join(tempDir, "restored")
 	dbPath := filepath.Join(tempDir, "index.sqlite")
 
@@ -212,7 +208,7 @@ func TestRestoreLocalityAndReadAt(t *testing.T) {
 	ctx := context.Background()
 
 	cfg, storer, snapshotID := setupLocalityBackup(
-		ctx, t, fs, dataDir, storeDir, dbPath, localitySourceBytes)
+		ctx, t, fs, dataDir, storeDir, dbPath)
 
 	// Wrap the storer so we can count downloads per blob key.
 	counter := newCountingStorer(storer)