1 Commits
Author SHA1 Message Date
sneak c98eab3cf0 Record each snapshot's new chunk size when its backup runs (closes #311)
check / check (push) Canceled after 0s
snapshot list worked out NEW CHUNK SIZE from the snapshot's file rows. A
file's row is shared by every snapshot that lists it and rewritten when
the file changes, so a snapshot whose change was a modified file showed
0 B, and older snapshots' figures moved after later backups.

The scanner now totals the size of the chunks it stores that were not
stored before (the chunks chunk_count counts), the backup writes that
total to a new snapshots column, new_chunk_size, and snapshot list reads
it.

Judgement call: the figure is fixed when the backup runs, so removing an
earlier snapshot no longer raises a later snapshot's figure.

Model: opus-5-5
2026-10-13 12:09:40 +00:00
169 changed files with 3190 additions and 13926 deletions

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node_modules/
yarn.lock
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{
"tabWidth": 4,
"proseWrap": "always"
}
+72 -67
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@@ -4,32 +4,33 @@ Version: 2025-06-08
# Instructions and Contextual Information
- Be direct, robotic, expert, accurate, and professional.
* Be direct, robotic, expert, accurate, and professional.
- Do not butter me up or kiss my ass.
* Do not butter me up or kiss my ass.
- Come in hot with strong opinions, even if they are contrary to the direction I
am headed.
* Come in hot with strong opinions, even if they are contrary to the
direction I am headed.
- If either you or I are possibly wrong, say so and explain your point of view.
* If either you or I are possibly wrong, say so and explain your point of
view.
- Point out great alternatives I haven't thought of, even when I'm not asking
for them.
* Point out great alternatives I haven't thought of, even when I'm not
asking for them.
- Treat me like the world's leading expert in every situation and every
* Treat me like the world's leading expert in every situation and every
conversation, and deliver the absolute best recommendations.
- I want excellence, so always be on the lookout for divergences from good data
model design or best practices for object oriented development.
* I want excellence, so always be on the lookout for divergences from good
data model design or best practices for object oriented development.
- IMPORTANT: This is production code, not a research or teaching exercise.
* IMPORTANT: This is production code, not a research or teaching exercise.
Deliver professional-level results, not prototypes.
- Please read and understand the `README.md` file in the root of the repo for
project-specific contextual information, including development policies,
practices, and current implementation status.
* Please read and understand the `README.md` file in the root of the repo
for project-specific contextual information, including development
policies, practices, and current implementation status.
- Be proactive in suggesting improvements or refactorings in places where we
* Be proactive in suggesting improvements or refactorings in places where we
diverge from best practices for clean, modular, maintainable code.
# Policies
@@ -37,18 +38,19 @@ Version: 2025-06-08
1. Before committing, tests must pass (`make test`), linting must pass
(`make lint`), and code must be formatted (`make fmt`). For go, those
makefile targets should use `go fmt` and `go test -v ./...` and
`golangci-lint run`. Each Makefile target does exactly one thing — to run
lint + fmt-check + test together (the standard pre-commit gate), use
`make check`.
`golangci-lint run`. Each Makefile target does exactly one thing — to
run lint + fmt-check + test together (the standard pre-commit gate),
use `make check`.
2. Always write a `Makefile` with the default target being `test`, and with a
`fmt` target that formats the code. The `test` target should run all tests in
the project, and the `fmt` target should format the code. `test` should also
have a prerequisite target `lint` that should run any linters that are
configured for the project.
2. Always write a `Makefile` with the default target being `test`, and with
a `fmt` target that formats the code. The `test` target should run all
tests in the project, and the `fmt` target should format the code.
`test` should also have a prerequisite target `lint` that should run any
linters that are configured for the project.
3. After each completed bugfix or feature, the code must be committed. Do all of
the pre-commit checks (test, lint, fmt) before committing, of course.
3. After each completed bugfix or feature, the code must be committed. Do
all of the pre-commit checks (test, lint, fmt) before committing, of
course.
4. When creating a very simple test script for testing out a new feature,
instead of making a throwaway to be deleted after verification, write an
@@ -56,27 +58,28 @@ Version: 2025-06-08
complex, but it should be a real test that can be run.
5. When you are instructed to make the tests pass, DO NOT delete tests, skip
tests, or change the tests specifically to make them pass (unless there is a
bug in the test). This is cheating, and it is bad. You should only be
modifying the test if it is incorrect or if the test is no longer relevant.
In almost all cases, you should be fixing the code that is being tested, or
updating the tests to match a refactored implementation.
tests, or change the tests specifically to make them pass (unless there
is a bug in the test). This is cheating, and it is bad. You should only
be modifying the test if it is incorrect or if the test is no longer
relevant. In almost all cases, you should be fixing the code that is
being tested, or updating the tests to match a refactored implementation.
6. When dealing with dates and times or timestamps, always use, display, and
store UTC. Set the local timezone to UTC on startup. If the user needs to see
the time in a different timezone, store the user's timezone in a separate
field and convert the UTC time to the user's timezone when displaying it. For
internal use and internal applications and administrative purposes, always
display UTC.
store UTC. Set the local timezone to UTC on startup. If the user needs
to see the time in a different timezone, store the user's timezone in a
separate field and convert the UTC time to the user's timezone when
displaying it. For internal use and internal applications and
administrative purposes, always display UTC.
7. Always write tests, even if they are extremely simple and just check for
correct syntax (ability to compile/import). If you are writing a new feature,
write a test for it. You don't need to target complete coverage, but you
should at least test any new functionality you add. If you are fixing a bug,
write a test first that reproduces the bug, and then fix the bug in the code.
correct syntax (ability to compile/import). If you are writing a new
feature, write a test for it. You don't need to target complete
coverage, but you should at least test any new functionality you add. If
you are fixing a bug, write a test first that reproduces the bug, and
then fix the bug in the code.
8. When implementing new features, be aware of potential side-effects (such as
state files on disk, data in the database, etc.) and ensure that it is
8. When implementing new features, be aware of potential side-effects (such
as state files on disk, data in the database, etc.) and ensure that it is
possible to mock or stub these side-effects in tests.
9. Always use structured logging. Log any relevant state/context with the
@@ -84,42 +87,44 @@ Version: 2025-06-08
output the structured logs in jsonl format.
10. Avoid using bare strings or numbers in code, especially if they appear
anywhere more than once. Always define a constant (usually at the top of the
file) and give it a descriptive name, then use that constant in the code
instead of the bare string or number.
anywhere more than once. Always define a constant (usually at the top
of the file) and give it a descriptive name, then use that constant in
the code instead of the bare string or number.
11. You do not need to summarize your changes in the chat after making them.
Making the changes and committing them is sufficient. If anything out of the
ordinary happened, please explain it, but in the normal case where you found
and fixed the bug, or implemented the feature, there is no need for the
end-of-change summary.
Making the changes and committing them is sufficient. If anything out
of the ordinary happened, please explain it, but in the normal case
where you found and fixed the bug, or implemented the feature, there is
no need for the end-of-change summary.
12. Do not create additional files in the root directory of the project without
asking permission first. Configuration files, documentation, and build files
are acceptable in the root, but source code and other files should be
organized in appropriate subdirectories.
12. Do not create additional files in the root directory of the project
without asking permission first. Configuration files, documentation, and
build files are acceptable in the root, but source code and other files
should be organized in appropriate subdirectories.
13. Pre-1.0: NEVER add a database migration. Migrations are supported, but
nothing is installed anywhere yet, so there is nothing to migrate. To change
the schema, edit `internal/database/schema/001.sql` (and any code that
touches the affected tables) directly. After 1.0, each schema change is a
new numbered file in that directory and a released file is never edited; an
existing local database is then migrated when vaultik is updated. Before
1.0, a local database left on an older schema is deleted and re-created by a
full backup. See [`docs/DATAMODEL.md`](docs/DATAMODEL.md#schema-migrations).
nothing is installed anywhere yet, so there is nothing to migrate. To
change the schema, edit `internal/database/schema/001.sql` (and any
code that touches the affected tables) directly. After 1.0, each schema
change is a new numbered file in that directory and a released file is
never edited; an existing local database is then migrated when vaultik
is updated. Before 1.0, a local database left on an older schema is
deleted and re-created by a full backup. See
[`docs/DATAMODEL.md`](docs/DATAMODEL.md#schema-migrations).
14. Never use `git add -A`. Stage only the files you intentionally changed.
14. Never use `git add -A`. Stage only the files you intentionally
changed.
15. Commit messages carry no attribution or advertising trailers for the tool
that helped write the code, or for its vendor: the owner is the sole author
of code written with a tool.
15. Commit messages carry no attribution or advertising trailers for the
tool that helped write the code, or for its vendor: the owner is the
sole author of code written with a tool.
16. Run the whole test suite with `make test` every time, and read its full
output. Never run `go test`, a single test or a single package, and never
grep the output.
output. Never run `go test`, a single test or a single package, and
never grep the output.
17. Do not stop working on a task until the definition of done given in the
initial instruction is met: all of the work, not part or most of it.
18. For estimates: backing up over 2.5Gbit/s ethernet to an S3 server backed by
2000MB/sec SSD takes about 4 seconds per gigabyte.
18. For estimates: backing up over 2.5Gbit/s ethernet to an S3 server
backed by 2000MB/sec SSD takes about 4 seconds per gigabyte.
+30 -124
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@@ -1,14 +1,10 @@
# Vaultik Architecture
This document describes the internal architecture of Vaultik, focusing on the
data model, type instantiation, and the relationships between core modules.
This document describes the internal architecture of Vaultik, focusing on the data model, type instantiation, and the relationships between core modules.
## Overview
Vaultik is a backup system that uses content-defined chunking for deduplication
and packs chunks into large, compressed, encrypted blobs for efficient cloud
storage. The system is built around dependency injection using
[uber-go/fx](https://github.com/uber-go/fx).
Vaultik is a backup system that uses content-defined chunking for deduplication and packs chunks into large, compressed, encrypted blobs for efficient cloud storage. The system is built around dependency injection using [uber-go/fx](https://github.com/uber-go/fx).
## Data Flow
@@ -57,88 +53,57 @@ The database tracks five primary entities and their relationships:
### Entity Descriptions
#### File (`database.File`)
Represents a file, directory, or symlink in the backup system. Stores metadata
needed for restoration:
Represents a file, directory, or symlink in the backup system. Stores metadata needed for restoration:
- Path, mtime
- Size, mode, ownership (uid, gid)
- Symlink target (if applicable)
It also stores `source_path`, the source directory the scan found it under, made
absolute and with symlinks resolved. Restore does not read it.
It also stores `source_path`, the source directory the scan found it under, made absolute and with symlinks resolved. Restore does not read it.
#### Chunk (`database.Chunk`)
A content-addressed unit of data. Files are split into variable-size chunks
using the FastCDC algorithm:
A content-addressed unit of data. Files are split into variable-size chunks using the FastCDC algorithm:
- `ChunkHash`: SHA256 hash of chunk content (primary key)
- `Size`: Chunk size in bytes
Chunk sizes vary between `avgChunkSize/4` and `avgChunkSize*4` (2.5MB-40MB for
the 10MB default average).
Chunk sizes vary between `avgChunkSize/4` and `avgChunkSize*4` (2.5MB-40MB for the 10MB default average).
#### FileChunk (`database.FileChunk`)
Maps files to their constituent chunks:
- `FileID`: Reference to the file
- `Idx`: Position of this chunk within the file (0-indexed)
- `ChunkHash`: Reference to the chunk
#### Blob (`database.Blob`)
The final storage unit uploaded to S3. Contains many compressed and encrypted
chunks:
The final storage unit uploaded to S3. Contains many compressed and encrypted chunks:
- `ID`: UUID assigned at creation
- `Hash`: `hex(SHA256(SHA256(uncompressed blob contents)))`, computed before
compression and encryption (see
[docs/REPOSTRUCTURE.md](REPOSTRUCTURE.md#blobs-directory-blobs))
- `Hash`: `hex(SHA256(SHA256(uncompressed blob contents)))`, computed before compression and encryption (see [docs/REPOSTRUCTURE.md](docs/REPOSTRUCTURE.md#blobs-directory-blobs))
- `UncompressedSize`: Total raw chunk data before compression
- `CompressedSize`: Size after zstd compression and age encryption
- `CreatedTS`, `FinishedTS`, `UploadedTS`: Lifecycle timestamps
Blob creation process:
1. Chunks are accumulated (up to MaxBlobSize, typically 10GB)
2. As each chunk is added, its uncompressed bytes are fed to a running SHA-256
3. Concurrently, the same bytes are compressed with zstd, then encrypted with
age (recipients configured in config), and written to a temporary file
4. On finalize, the blob's name is the double SHA-256 of the uncompressed
contents — `hex(SHA256(SHA256(...)))` — not a hash of the compressed,
encrypted bytes
5. The finished file is uploaded to `blobs/{hash[0:2]}/{hash[2:4]}/{hash}` and
then deleted
3. Concurrently, the same bytes are compressed with zstd, then encrypted with age (recipients configured in config), and written to a temporary file
4. On finalize, the blob's name is the double SHA-256 of the uncompressed contents — `hex(SHA256(SHA256(...)))` — not a hash of the compressed, encrypted bytes
5. The finished file is uploaded to `blobs/{hash[0:2]}/{hash[2:4]}/{hash}` and then deleted
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 `$TMPDIR`
(default `/tmp`); with `TMPDIR` unset, SQLite writes one of those copies to
`/var/tmp`.
A backup needs free temporary space, because each blob is written whole to a temporary file before it is uploaded (up to about `blob_size_limit`; an rclone destination that cannot stream uploads needs about twice that) and the metadata export writes copies of the local index. Temporary files go to `$TMPDIR` (default `/tmp`); with `TMPDIR` unset, SQLite writes one of those copies to `/var/tmp`.
#### BlobChunk (`database.BlobChunk`)
Maps chunks to their position within blobs:
- `BlobID`: Reference to the blob
- `ChunkHash`: Reference to the chunk
- `Offset`: Byte offset within the uncompressed blob
- `Length`: Chunk size
#### Snapshot (`database.Snapshot`)
Represents a point-in-time backup:
- `ID`: Format is `{hostname}_{snapshot-name}_{RFC3339}` (e.g.
`server1_home_2025-06-01T12:00:00Z`)
- `ID`: Format is `{hostname}_{snapshot-name}_{RFC3339}` (e.g. `server1_home_2025-06-01T12:00:00Z`)
- Tracks file count, chunk count, blob count, sizes, compression ratio
- `CompletedAt`: Null until snapshot finishes successfully
#### SnapshotFile / SnapshotBlob
Join tables linking snapshots to their files and blobs.
### Relationship Summary
@@ -175,27 +140,21 @@ fx.New(
### Key Type Instantiation Points
#### 1. Config (`config.Config`)
- **Created by**: `config.Module` via `config.LoadConfig()`
- **When**: Application startup (fx DI)
- **Contains**: All configuration from YAML file (S3 credentials, encryption
keys, paths, etc.)
- **Contains**: All configuration from YAML file (S3 credentials, encryption keys, paths, etc.)
#### 2. Database (`database.DB`)
- **Created by**: `database.Module` via `database.New()`
- **When**: Application startup (fx DI)
- **Contains**: SQLite connection, path reference
#### 3. Repositories (`database.Repositories`)
- **Created by**: `database.Module` via `database.NewRepositories()`
- **When**: Application startup (fx DI)
- **Contains**: All repository interfaces (Files, Chunks, Blobs, Snapshots,
etc.)
- **Contains**: All repository interfaces (Files, Chunks, Blobs, Snapshots, etc.)
#### 4. Vaultik (`vaultik.Vaultik`)
- **Created by**: `vaultik.New(VaultikParams)`
- **When**: Application startup (fx DI)
- **Contains**: All dependencies for backup operations
@@ -217,13 +176,11 @@ type Vaultik struct {
```
#### 5. SnapshotManager (`snapshot.SnapshotManager`)
- **Created by**: `snapshot.Module` via `snapshot.NewSnapshotManager()`
- **When**: Application startup (fx DI)
- **Responsibility**: Creates/completes snapshots, exports metadata to S3
#### 6. Scanner (`snapshot.Scanner`)
- **Created by**: `ScannerFactory(ScannerParams)`
- **When**: Each `CreateSnapshot()` call
- **Contains**: Chunker, Packer, progress reporter
@@ -237,16 +194,14 @@ scanner := v.ScannerFactory(snapshot.ScannerParams{
```
#### 7. Chunker (`chunker.Chunker`)
- **Created by**: `chunker.NewChunker(avgChunkSize)`
- **When**: Inside `snapshot.NewScanner()`
- **Configuration**:
- `avgChunkSize`: From config (default 10MB)
- `minChunkSize`: avgChunkSize / 4
- `maxChunkSize`: avgChunkSize \* 4
- `maxChunkSize`: avgChunkSize * 4
#### 8. Packer (`blob.Packer`)
- **Created by**: `blob.NewPacker(PackerConfig)`
- **When**: Inside `snapshot.NewScanner()`
- **Configuration**:
@@ -269,22 +224,17 @@ packer, err := blob.NewPacker(packerCfg)
## Module Responsibilities
### `internal/cli`
Entry point for fx application. Combines all modules and handles signal
interrupts.
Entry point for fx application. Combines all modules and handles signal interrupts.
Key functions:
- `NewApp(AppOptions)` → Creates fx.App with all modules
- `RunApp(ctx, app)` → Starts app, handles graceful shutdown
- `RunWithApp(ctx, opts)` → Convenience wrapper
### `internal/vaultik`
Main orchestrator containing all dependencies and command implementations.
Key methods:
- `New(VaultikParams)` → Constructor (fx DI)
- `CreateSnapshot(opts)` → Main backup operation
- `ListSnapshots(jsonOutput)` → List available snapshots
@@ -292,34 +242,27 @@ Key methods:
- `PurgeSnapshots(...)` → Remove old snapshots
### `internal/chunker`
Content-defined chunking using FastCDC algorithm.
Key types:
- `Chunk` → Hash, Data, Offset, Size
- `Chunker` → avgChunkSize, minChunkSize, maxChunkSize
Key methods:
- `NewChunker(avgChunkSize)` → Constructor
- `ChunkReaderStreaming(reader, callback)` → Stream chunks with callback
(preferred)
- `ChunkReaderStreaming(reader, callback)` → Stream chunks with callback (preferred)
- `ChunkReader(reader)` → Return all chunks at once (memory-intensive)
### `internal/blob`
Blob packing: accumulates chunks, compresses, encrypts, tracks metadata.
Key types:
- `Packer` → Thread-safe blob accumulator
- `ChunkRef` → Hash + Data for adding to packer
- `FinishedBlob` → Completed blob ready for upload
- `BlobWithReader` → FinishedBlob + io.Reader for streaming upload
Key methods:
- `NewPacker(PackerConfig)` → Constructor
- `AddChunk(ChunkRef)` → Add chunk to current blob
- `FinalizeBlob()` → Compress, encrypt, hash current blob
@@ -329,48 +272,35 @@ Key methods:
### `internal/snapshot`
#### Scanner
Orchestrates the backup process for a directory.
Key methods:
- `NewScanner(ScannerConfig)` → Constructor (creates Chunker + Packer)
- `Scan(ctx, path, snapshotID)` → Main scan operation
Scan phases:
1. **Phase 1**: Walk directory, identify files needing processing
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
1. **Phase 0**: Detect deleted files from previous snapshots
2. **Phase 1**: Walk directory, identify files needing processing
3. **Phase 2**: Process files (chunk → pack → upload)
#### SnapshotManager
Manages snapshot lifecycle and metadata export.
Key methods:
- `CreateSnapshot(ctx, hostname, version, commit)` → Create snapshot record
- `PopulateSnapshotBlobs(ctx, snapshotID)` → Record every blob the snapshot
references
- `PopulateSnapshotBlobs(ctx, snapshotID)` → Record every blob the snapshot references
- `ExportSnapshotMetadata(ctx, dbPath, snapshotID)` → Export to S3
- `MarkSnapshotComplete(ctx, snapshotID)` → Record completion, only after a
successful export
- `CompleteSnapshot(ctx, snapshotID)` → Convenience: populate blobs, then mark
complete (no export between)
- `MarkSnapshotComplete(ctx, snapshotID)` → Record completion, only after a successful export
- `CompleteSnapshot(ctx, snapshotID)` → Convenience: populate blobs, then mark complete (no export between)
### `internal/database`
SQLite database for local index. Single-writer mode for thread safety.
Key types:
- `DB` → Database connection wrapper
- `Repositories` → Collection of all repository interfaces
Repository interfaces:
- `FilesRepository` → CRUD for File records
- `ChunksRepository` → CRUD for Chunk records
- `BlobsRepository` → CRUD for Blob records
@@ -381,8 +311,6 @@ Repository interfaces:
```
CreateSnapshot(opts)
│
├─► markDestination() // Check the marker (see Storage Layout in S3), then write it
│
├─► PruneDatabase() // Critical: avoid dedup errors
│
@@ -392,13 +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()
@@ -429,23 +357,16 @@ 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.
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.
3. **Blob-level**: Blobs contain only unique chunks. Duplicate chunks within a
blob are skipped.
3. **Blob-level**: Blobs contain only unique chunks. Duplicate chunks within a blob are skipped.
## Storage Layout in S3
```
bucket/
├── vaultik-destination.txt # Marker written by every backup
│
├── blobs/
│ └── {hash[0:2]}/
│ └── {hash[2:4]}/
@@ -457,30 +378,15 @@ 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](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
[docs/REPOSTRUCTURE.md](REPOSTRUCTURE.md#remote-key-derivation) for the
[docs/REPOSTRUCTURE.md](docs/REPOSTRUCTURE.md#remote-key-derivation) for the
derivation and a worked example.
## Thread Safety
- `Packer`: Thread-safe via mutex. Multiple goroutines can call `AddChunk()`.
- `Scanner`: Uses `packerMu` mutex to coordinate blob finalization.
- `Database`: Single-writer mode (`MaxOpenConns=1`) ensures SQLite thread
safety.
- `Database`: Single-writer mode (`MaxOpenConns=1`) ensures SQLite thread safety.
- `Repositories.WithTx()`: Handles transaction lifecycle automatically.
+3 -24
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@@ -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
# 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
RUN go mod download
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 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
RUN go mod download
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 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
RUN go mod download
COPY . .
# The VERSION build arg when one is given, otherwise
+521 -723
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File diff suppressed because it is too large. Load diff
+1087
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-45
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@@ -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)
}
}
@@ -295,7 +295,6 @@ storage_url: "rclone://myremote/path/to/backups"
# Path to local SQLite index database
# This database tracks file state for incremental backups
# It must be an absolute path; ~ is expanded
# Default: the platform data directory, e.g.
# macOS: ~/Library/Application Support/vaultik/index.sqlite
# Linux: ~/.local/share/vaultik/index.sqlite
@@ -303,8 +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, 64MiB, etc.
# Supports: 10MB, 5M, 1GB, 500KB, 64MiB, etc.
# Default: 10MB
#chunk_size: 10MB
@@ -329,20 +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
+35 -133
View File
@@ -2,9 +2,7 @@
## Overview
Vaultik uses a local SQLite database to track file metadata, chunk mappings, and
blob associations during the backup process. This database serves as an index
for incremental backups and enables efficient deduplication.
Vaultik uses a local SQLite database to track file metadata, chunk mappings, and blob associations during the backup process. This database serves as an index for incremental backups and enables efficient deduplication.
**Important Notes:**
@@ -27,23 +25,19 @@ recorded `001.sql` as run, so it keeps the old schema and can become unusable;
`vaultik database delete` followed by a full backup rebuilds it.
**After 1.0** each schema change is a new numbered file, so an existing local
database is migrated the first time an updated vaultik opens it. A file that has
shipped in a release is never edited.
database is migrated the first time an updated vaultik opens it. A file that
has shipped in a release is never edited.
## Database Tables
### 1. `files`
Stores metadata about files in the filesystem being backed up.
**Columns:**
- `id` (TEXT PRIMARY KEY) - UUID for the file record
- `path` (TEXT NOT NULL UNIQUE) - Absolute file path
- `mtime` (INTEGER NOT NULL) - Modification time, whole seconds since the Unix
epoch
- `mtime_nsec` (INTEGER NOT NULL) - Nanoseconds within that second, 0 to
999999999
- `mtime` (INTEGER NOT NULL) - Modification time, whole seconds since the Unix epoch
- `mtime_nsec` (INTEGER NOT NULL) - Nanoseconds within that second, 0 to 999999999
- `size` (INTEGER NOT NULL) - File size in bytes
- `mode` (INTEGER NOT NULL) - Unix file permissions and type
- `uid` (INTEGER NOT NULL) - User ID of file owner
@@ -51,30 +45,23 @@ Stores metadata about files in the filesystem being backed up.
- `link_target` (TEXT) - Symlink target path (NULL for regular files)
**Indexes:**
- `idx_files_path` on `path` for efficient lookups
**Purpose:** Tracks file metadata to detect changes between backup runs. Used
for incremental backup decisions. The UUID primary key provides stable
references that don't change if files are moved.
**Purpose:** Tracks file metadata to detect changes between backup runs. Used for incremental backup decisions. The UUID primary key provides stable references that don't change if files are moved.
### 2. `chunks`
Stores information about content-defined chunks created from files.
**Columns:**
- `chunk_hash` (TEXT PRIMARY KEY) - SHA256 hash of chunk content
- `size` (INTEGER NOT NULL) - Chunk size in bytes
**Purpose:** Enables deduplication by tracking unique chunks across all files.
### 3. `file_chunks`
Maps files to their constituent chunks in order.
**Columns:**
- `file_id` (TEXT) - File ID (FK to files.id)
- `idx` (INTEGER) - Chunk index within file (0-based)
- `chunk_hash` (TEXT) - Chunk hash (FK to chunks.chunk_hash)
@@ -83,49 +70,35 @@ Maps files to their constituent chunks in order.
**Purpose:** Allows reconstruction of files from chunks during restore.
### 4. `chunk_files`
Reverse mapping showing which files contain each chunk.
**Columns:**
- `chunk_hash` (TEXT) - Chunk hash (FK to chunks.chunk_hash)
- `file_id` (TEXT) - File ID (FK to files.id)
- `file_offset` (INTEGER) - Byte offset of chunk within file
- `length` (INTEGER) - Length of chunk in bytes
- PRIMARY KEY (`chunk_hash`, `file_id`)
**Purpose:** Supports efficient queries for chunk usage and deduplication
statistics.
**Purpose:** Supports efficient queries for chunk usage and deduplication statistics.
### 5. `blobs`
Stores information about packed, compressed, and encrypted blob files.
**Columns:**
- `id` (TEXT PRIMARY KEY) - UUID assigned when blob creation starts
- `blob_hash` (TEXT UNIQUE) - `hex(SHA256(SHA256(uncompressed blob contents)))`,
computed before compression and encryption (NULL until finalized); see
[REPOSTRUCTURE.md](REPOSTRUCTURE.md#blobs-directory-blobs)
- `blob_hash` (TEXT UNIQUE) - `hex(SHA256(SHA256(uncompressed blob contents)))`, computed before compression and encryption (NULL until finalized); see [REPOSTRUCTURE.md](REPOSTRUCTURE.md#blobs-directory-blobs)
- `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
- `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
- `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.
**Purpose:** Tracks blob lifecycle from creation through upload. The UUID primary key allows immediate association of chunks with blobs.
### 6. `blob_chunks`
Maps chunks to the blobs that contain them.
**Columns:**
- `blob_id` (TEXT) - Blob ID (FK to blobs.id)
- `chunk_hash` (TEXT) - Chunk hash (FK to chunks.chunk_hash)
- `offset` (INTEGER) - Byte offset of chunk within blob (before compression)
@@ -135,46 +108,33 @@ Maps chunks to the blobs that contain them.
**Purpose:** Enables chunk retrieval from blobs during restore operations.
### 7. `snapshots`
Tracks backup snapshots.
**Columns:**
- `id` (TEXT PRIMARY KEY) - Snapshot ID (format: `hostname_name_timestamp`, e.g.
`server1_home_2025-06-01T12:00:00Z`: the hostname up to its first `.`, the
snapshot name, and an RFC 3339 UTC timestamp)
- `id` (TEXT PRIMARY KEY) - Snapshot ID (format: `hostname_name_timestamp`, e.g. `server1_home_2025-06-01T12:00:00Z`: the hostname up to its first `.`, the snapshot name, and an RFC 3339 UTC timestamp)
- `hostname` (TEXT) - Hostname where backup was created
- `vaultik_version` (TEXT) - Version of Vaultik used
- `vaultik_git_revision` (TEXT) - Git revision of Vaultik used
- `started_at` (INTEGER) - Start timestamp
- `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
- `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
- `blob_uncompressed_size` (INTEGER) - Total uncompressed size of all referenced blobs
- `compression_ratio` (REAL) - Compression ratio achieved
- `compression_level` (INTEGER) - Compression level used for this snapshot
- `upload_bytes` (INTEGER) - Total bytes uploaded during this snapshot
- `upload_duration_ms` (INTEGER) - Total milliseconds spent uploading to S3
**Purpose:** Provides snapshot metadata and statistics including version
tracking for compatibility.
**Purpose:** Provides snapshot metadata and statistics including version tracking for compatibility.
### 8. `snapshot_files`
Maps snapshots to the files they contain.
**Columns:**
- `snapshot_id` (TEXT) - Snapshot ID (FK to snapshots.id)
- `file_id` (TEXT) - File ID (FK to files.id)
- PRIMARY KEY (`snapshot_id`, `file_id`)
@@ -182,52 +142,27 @@ Maps snapshots to the files they contain.
**Purpose:** Records which files are included in each snapshot.
### 9. `snapshot_blobs`
Maps snapshots to the blobs they reference.
**Columns:**
- `snapshot_id` (TEXT) - Snapshot ID (FK to snapshots.id)
- `blob_id` (TEXT) - Blob ID (FK to blobs.id)
- `blob_hash` (TEXT) - Denormalized blob hash for manifest generation
- PRIMARY KEY (`snapshot_id`, `blob_id`)
**Purpose:** Tracks blob dependencies for snapshots and enables manifest
generation.
### 10. `snapshot_mount_points`
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`
**Purpose:** Tracks blob dependencies for snapshots and enables manifest generation.
### 10. `uploads`
Tracks blob upload metrics.
**Columns:**
- `blob_hash` (TEXT PRIMARY KEY) - Hash of uploaded blob
- `snapshot_id` (TEXT NOT NULL) - The snapshot that triggered this upload (FK to
snapshots.id)
- `snapshot_id` (TEXT NOT NULL) - The snapshot that triggered this upload (FK to snapshots.id)
- `uploaded_at` (INTEGER) - Upload timestamp
- `size` (INTEGER) - Size of uploaded blob
- `duration_ms` (INTEGER) - Upload duration in milliseconds
**Purpose:** Performance monitoring and tracking which blobs were newly created
(uploaded) during each snapshot.
**Purpose:** Performance monitoring and tracking which blobs were newly created (uploaded) during each snapshot.
## Data Flow and Operations
@@ -237,8 +172,6 @@ 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
@@ -248,13 +181,10 @@ Tracks blob upload metrics.
3. **Blob Packing**
- `INSERT INTO blobs` - Create blob record with UUID (blob_hash NULL)
- `INSERT INTO blob_chunks` - Associate chunks with blob immediately
- `UPDATE blobs SET blob_hash = ?, finished_ts = ?` - Finalize blob after
packing
- `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
@@ -267,61 +197,43 @@ Tracks blob upload metrics.
1. **Change Detection**
- `SELECT * FROM files WHERE path = ?` - Get previous file metadata
- Compare mtime, size, mode to detect changes
- Re-chunk a file that lists a chunk no uploaded blob holds, even when its
metadata is unchanged
- Re-chunk a file that lists a chunk no uploaded blob holds, even when its metadata is unchanged
- Skip unchanged files but still add to `snapshot_files`
2. **Chunk Reuse**
- `SELECT * FROM blob_chunks WHERE chunk_hash = ?` - Find existing chunks
- `INSERT INTO snapshot_blobs` - Reference existing blobs for unchanged
files
- `INSERT INTO snapshot_blobs` - Reference existing blobs for unchanged files
### 3. Snapshot Metadata Export
After a snapshot is completed:
1. Copy database to temporary file
2. Clean temporary database to contain only current snapshot data
3. VACUUM the trimmed database so deleted rows leave no pages behind
4. Compress with zstd and encrypt with age
5. Upload to S3 as `metadata/{remote-key}/db.zst.age`
6. Generate blob manifest and upload as
`metadata/{remote-key}/manifest.json.zst`
6. Generate blob manifest and upload as `metadata/{remote-key}/manifest.json.zst`
The `{remote-key}` directory name is a one-way hash of the human snapshot ID, so
the ID is never written to the store in plaintext. The hash uses no secret, so a
guessed hostname and snapshot name can still be confirmed against a listing; see
[REPOSTRUCTURE.md](REPOSTRUCTURE.md#remote-key-derivation) and its
[Accepted Risks](REPOSTRUCTURE.md#accepted-risks).
The `{remote-key}` directory name is a one-way hash of the human snapshot ID, so the ID is never written to the store in plaintext. The hash uses no secret, so a guessed hostname and snapshot name can still be confirmed against a listing; see [REPOSTRUCTURE.md](REPOSTRUCTURE.md#remote-key-derivation) and its [Accepted Risks](REPOSTRUCTURE.md#accepted-risks).
### 4. Restore Process
The restore process doesn't use the local database. Instead:
1. Downloads and decrypts the snapshot's metadata database (`db.zst.age`) from
S3
2. Downloads the blobs holding the chunks of the files being restored, found
through that database's `blob_chunks` table; the manifest is not read
1. Downloads and decrypts the snapshot's metadata database (`db.zst.age`) from S3
2. Downloads the blobs holding the chunks of the files being restored, found through that database's `blob_chunks` table; the manifest is not read
3. Reconstructs files from decrypted and decompressed chunks
### 5. Pruning
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
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`
- Delete from S3 and local database
### 6. Incomplete Snapshot Cleanup
Before each backup:
1. Query incomplete snapshots (where `completed_at IS NULL`)
2. Delete each one and all its associations, without checking S3 for its
metadata
2. Delete each one and all its associations, without checking S3 for its metadata
3. Clean up orphaned files, chunks, and blobs
## Repository Pattern
@@ -338,13 +250,11 @@ Vaultik uses a repository pattern for database access:
- `UploadRepository` - Track blob upload metrics
Each repository provides methods like:
- `Create()` - Insert new record
- `GetByID()` / `GetByPath()` / `GetByHash()` - Retrieve records
- `Update()` - Update existing records
- `Delete()` - Remove records
- Specialized queries for each entity type (e.g., `DeleteOrphaned()`,
`GetIncompleteByHostname()`)
- Specialized queries for each entity type (e.g., `DeleteOrphaned()`, `GetIncompleteByHostname()`)
## Transaction Management
@@ -357,7 +267,6 @@ err := repos.WithTx(ctx, func(ctx context.Context, tx *sql.Tx) error {
```
This ensures consistency, especially important for operations like:
- Creating file-chunk mappings
- Associating chunks with blobs
- Updating snapshot statistics
@@ -368,22 +277,15 @@ This ensures consistency, especially important for operations like:
- Primary keys are automatically indexed
- `idx_files_path` on `files(path)` for efficient file lookups
2. **Prepared Statements**: All queries use prepared statements for performance
and security
2. **Prepared Statements**: All queries use prepared statements for performance and security
3. **Batch Operations**: Where possible, operations are batched within
transactions
3. **Batch Operations**: Where possible, operations are batched within transactions
4. **Write-Ahead Logging**: The local index runs in SQLite WAL mode with a
10-second busy timeout, so a read-only command such as `snapshot list` can
read it while a backup writes to it. Committed rows can sit in the `-wal`
file beside the index until a checkpoint, so the metadata export copies the
index through SQLite (`VACUUM INTO`), not as a file
4. **Write-Ahead Logging**: The local index runs in SQLite WAL mode with a 10-second busy timeout, so a read-only command such as `snapshot list` can read it while a backup writes to it. Committed rows can sit in the `-wal` file beside the index until a checkpoint, so the metadata export copies the index through SQLite (`VACUUM INTO`), not as a file
## Data Integrity
1. **Foreign Keys**: Enforced through CASCADE DELETE and application-level
repository methods
1. **Foreign Keys**: Enforced through CASCADE DELETE and application-level repository methods
2. **Unique Constraints**: Chunk hashes, file paths, and blob hashes are unique
3. **Null Handling**: Nullable fields clearly indicate in-progress operations
4. **Timestamp Tracking**: All major operations record timestamps for auditing
+43 -228
View File
@@ -1,13 +1,10 @@
# Vaultik S3 Repository Structure
This document describes the structure and organization of data stored in the S3
bucket by Vaultik.
This document describes the structure and organization of data stored in the S3 bucket by Vaultik.
## 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)
@@ -15,7 +12,6 @@ consists of two main components, plus a marker file:
```
<bucket>/<prefix>/
├── vaultik-destination.txt
├── blobs/
│ └── <hash[0:2]>/
│ └── <hash[2:4]>/
@@ -26,127 +22,67 @@ consists of two main components, plus a marker file:
└── manifest.json.zst
```
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.
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).
## Blobs Directory (`blobs/`)
### Structure
- **Path format**: `blobs/<first-2-chars>/<next-2-chars>/<full-hash>`
- **Example**:
`blobs/ca/fe/cafebabe1234567890abcdef1234567890abcdef1234567890abcdef12345678`
- **Sharding**: The two-level directory structure (using the first 4 characters
of the hash) prevents any single directory from containing too many objects
- **Example**: `blobs/ca/fe/cafebabe1234567890abcdef1234567890abcdef1234567890abcdef12345678`
- **Sharding**: The two-level directory structure (using the first 4 characters of the hash) prevents any single directory from containing too many objects
### Content
- **What it contains**: Packed collections of content-defined chunks from files
- **Format**: Zstandard compressed, then Age encrypted
- **Encryption**: Always encrypted with Age using the configured recipients
- **Naming**: Content-addressed. The blob's name is
`hex(SHA256(SHA256(uncompressed blob contents)))` — the double SHA-256 of the
concatenated chunk data, computed before compression and encryption, not a
hash of the stored (compressed, encrypted) bytes. One consequence: only a
holder of the age private key can check a stored blob's integrity, because
matching a blob to its name means decrypting and decompressing it first —
which is what `restore` and `verify --deep` do. Implemented in
`internal/blobgen` (`DoubleSHA256`). This is the canonical description of blob
naming; other documents and comments point here.
- **Naming**: Content-addressed. The blob's name is `hex(SHA256(SHA256(uncompressed blob contents)))` — the double SHA-256 of the concatenated chunk data, computed before compression and encryption, not a hash of the stored (compressed, encrypted) bytes. One consequence: only a holder of the age private key can check a stored blob's integrity, because matching a blob to its name means decrypting and decompressing it first — which is what `restore` and `verify --deep` do. Implemented in `internal/blobgen` (`DoubleSHA256`). This is the canonical description of blob naming; other documents and comments point here.
### Why Encrypted
Blobs contain the actual file data from backups and must be encrypted for
security. The content-addressing ensures deduplication while the encryption
ensures privacy.
Blobs contain the actual file data from backups and must be encrypted for security. The content-addressing ensures deduplication while the encryption ensures privacy.
## Metadata Directory (`metadata/`)
Each snapshot has its own subdirectory. The directory is **not** named with the
human-readable snapshot ID; it is named with the remote key — a one-way hash of
that ID. The human ID is never written to the destination store as a directory
name (see [Remote Key Derivation](#remote-key-derivation)).
Each snapshot has its own subdirectory. The directory is **not** named with the human-readable snapshot ID; it is named with the remote key — a one-way hash of that ID. The human ID is never written to the destination store as a directory name (see [Remote Key Derivation](#remote-key-derivation)).
### Snapshot ID Format
The human-readable snapshot ID is used in CLI arguments, log lines, and the
local database. It is not written to the destination store.
- **Format**: `<hostname>_<snapshot-name>_<RFC3339>` (or `<hostname>_<RFC3339>`
if no name was specified)
The human-readable snapshot ID is used in CLI arguments, log lines, and the local database. It is not written to the destination store.
- **Format**: `<hostname>_<snapshot-name>_<RFC3339>` (or `<hostname>_<RFC3339>` if no
name was specified)
- **Example**: `laptop_home_2024-01-15T14:30:52Z`
- **Components**:
- Short hostname (everything before the first dot is stripped from the FQDN)
- Snapshot name from the configured `snapshots:` map (optional)
- RFC3339 UTC timestamp
This ID reveals the hostname, the configured snapshot name, and the backup time,
so it is never used as the on-disk directory name — the remote key is used
instead.
This ID reveals the hostname, the configured snapshot name, and the backup time, so it is never used as the on-disk directory name — the remote key is used instead.
### Remote Key Derivation
The remote key is `hex(SHA256(SHA256("vaultik|" + snapshot-id)))`: a double
SHA-256 over the snapshot ID, with a `vaultik|` domain-separation prefix. The
result is a 64-character hex string. The hash is not reversible, but it uses no
secret: an observer who guesses a candidate hostname and snapshot name can hash
it the same way and confirm whether that snapshot is present. The remote key
keeps names out of a plain listing; it does not hide them from a guess.
Implemented in `internal/snapshot/remotekey.go`.
The remote key is `hex(SHA256(SHA256("vaultik|" + snapshot-id)))`: a double SHA-256 over the snapshot ID, with a `vaultik|` domain-separation prefix. The result is a 64-character hex string. The hash is not reversible, but it uses no secret: an observer who guesses a candidate hostname and snapshot name can hash it the same way and confirm whether that snapshot is present. The remote key keeps names out of a plain listing; it does not hide them from a guess. Implemented in `internal/snapshot/remotekey.go`.
Worked example:
- Snapshot ID: `server1_home_2025-06-01T12:00:00Z`
- Remote key: `17f97bcde958748af076b926af59823943db59e80ce7170b40f124dfa28f64aa`
- Directory:
`metadata/17f97bcde958748af076b926af59823943db59e80ce7170b40f124dfa28f64aa/`
- Directory: `metadata/17f97bcde958748af076b926af59823943db59e80ce7170b40f124dfa28f64aa/`
A plain listing of the destination store therefore shows only these hashes, not
the hostname or snapshot name of any backup — but because the hash uses no
secret, a guessed hostname and snapshot name can be hashed and confirmed against
the listing. The same remote key is stored in the manifest's `snapshot_id`
field.
A plain listing of the destination store therefore shows only these hashes, not the hostname or snapshot name of any backup — but because the hash uses no secret, a guessed hostname and snapshot name can be hashed and confirmed against the listing. The same remote key is stored in the manifest's `snapshot_id` field.
### Files in Each Snapshot Directory
#### `db.zst.age` - Encrypted Database
- **What it contains**: Pruned binary SQLite database for this snapshot
- **Format**: Binary SQLite → Zstandard compressed → Age encrypted
- **Encryption**: Encrypted with Age
- **Purpose**: Contains full file metadata, chunk mappings, and all
relationships
- **Why encrypted**: Contains sensitive metadata like file paths, permissions,
and ownership
- **Purpose**: Contains full file metadata, chunk mappings, and all relationships
- **Why encrypted**: Contains sensitive metadata like file paths, permissions, and ownership
#### `manifest.json.zst` - Unencrypted Blob Manifest
- **What it contains**: JSON list of all blob hashes referenced by this snapshot
- **Format**: JSON → Zstandard compressed (NOT encrypted)
- **Encryption**: NOT encrypted
- **Purpose**: Enables pruning operations without requiring decryption keys
- **Structure**:
```json
{
"snapshot_id": "17f97bcde958748af076b926af59823943db59e80ce7170b40f124dfa28f64aa",
@@ -154,80 +90,46 @@ field.
"blob_count": 42,
"total_compressed_size": 1048576,
"blobs": [
{
"hash": "cafebabe1234567890abcdef1234567890abcdef1234567890abcdef12345678",
"compressed_size": 24576
},
{
"hash": "deadbeef1234567890abcdef1234567890abcdef1234567890abcdef12345678",
"compressed_size": 32768
}
{ "hash": "cafebabe1234567890abcdef1234567890abcdef1234567890abcdef12345678", "compressed_size": 24576 },
{ "hash": "deadbeef1234567890abcdef1234567890abcdef1234567890abcdef12345678", "compressed_size": 32768 }
]
}
```
`snapshot_id` is the remote key (a hash), not the human ID; `timestamp` is
written in the clear.
`snapshot_id` is the remote key (a hash), not the human ID; `timestamp` is written in the clear.
### Why Manifest is Unencrypted
The manifest must be readable without the private key to enable:
1. **Pruning operations** - Identifying unreferenced blobs for deletion
2. **Storage analysis** - Understanding space usage without decryption
3. **Verification** - Checking blob existence without decryption
4. **Cross-snapshot deduplication analysis** - Finding shared blobs between
snapshots
4. **Cross-snapshot deduplication analysis** - Finding shared blobs between snapshots
The manifest contains the remote key, the backup timestamp, the blob count and
total compressed size, and each blob's hash and compressed size. It contains no
file names, paths, or other decrypted metadata.
The manifest contains the remote key, the backup timestamp, the blob count and total compressed size, and each blob's hash and compressed size. It contains no file names, paths, or other decrypted metadata.
## Security Considerations
### What's Encrypted
- **All file content** (in blobs)
- **All file metadata** (paths, permissions, timestamps, ownership in
db.zst.age)
- **All file metadata** (paths, permissions, timestamps, ownership in db.zst.age)
- **File-to-chunk mappings** (in db.zst.age)
### What's Not Encrypted
- **The remote key** — directory names and the manifest `snapshot_id`, a one-way
hash of the snapshot ID (see [Remote Key Derivation](#remote-key-derivation))
- **The remote key** — directory names and the manifest `snapshot_id`, a one-way hash of the snapshot ID (see [Remote Key Derivation](#remote-key-derivation))
- **The backup timestamp** (in manifest.json.zst)
- **Blob hashes and their compressed sizes** (in manifest.json.zst)
- **Blob count and total compressed size per snapshot** (in manifest.json.zst)
### Privacy Implications
From the unencrypted data, an observer of the destination store can determine:
- **When each backup was taken** — not from the directory name, which is a
one-way hash, but from the plaintext `timestamp` field in manifest.json.zst,
which is published in the clear
- **When each backup was taken** — not from the directory name, which is a one-way hash, but from the plaintext `timestamp` field in manifest.json.zst, which is published in the clear
- How many blobs each snapshot references, and the total compressed size
- The compressed size of each blob, and which blobs are shared between snapshots
(deduplication patterns)
- **Whether a guessed hostname and snapshot name are present** — the remote key
is an unkeyed hash, so an observer holding candidate names can hash each one
and match it against the directory listing. The human ID is never published,
so it cannot be read off directly, but it can be confirmed by guessing.
- The compressed size of each blob, and which blobs are shared between snapshots (deduplication patterns)
- **Whether a guessed hostname and snapshot name are present** — the remote key is an unkeyed hash, so an observer holding candidate names can hash each one and match it against the directory listing. The human ID is never published, so it cannot be read off directly, but it can be confirmed by guessing.
Together these give an observer a timing-and-size profile of every snapshot.
This is an accepted, documented property of the format, not a defect: the
manifest is unencrypted so that pruning can run without the private key, and the
timing channel could not be closed by encrypting it anyway — object creation
times and per-object sizes stay visible at the storage layer on both `s3://` and
`file://` destinations regardless.
Together these give an observer a timing-and-size profile of every snapshot. This is an accepted, documented property of the format, not a defect: the manifest is unencrypted so that pruning can run without the private key, and the timing channel could not be closed by encrypting it anyway — object creation times and per-object sizes stay visible at the storage layer on both `s3://` and `file://` destinations regardless.
An observer cannot determine:
- The hostname or snapshot name of any backup by reading it off the store — the
directory name and the manifest `snapshot_id` are unkeyed hashes of the human
ID, so the text is never published (though a guessed name can be confirmed, as
above)
- The hostname or snapshot name of any backup by reading it off the store — the directory name and the manifest `snapshot_id` are unkeyed hashes of the human ID, so the text is never published (though a guessed name can be confirmed, as above)
- File names or paths
- File contents
- File permissions or ownership
@@ -236,126 +138,39 @@ An observer cannot determine:
### Accepted Risks
These are known, deliberate properties of the format and the tooling, recorded
so an operator can weigh them rather than discover them.
These are known, deliberate properties of the format and the tooling, recorded so an operator can weigh them rather than discover them.
1. **No proof of authorship.** Restore and `verify --deep` prove that data
decrypts with the age private key and matches its unkeyed content hashes.
They do not prove who wrote it: anyone who knows a recipient public key and
can replace objects on the destination can substitute a snapshot they built.
The recipient string is not stored at the destination, but a compromised
backed-up host has it. Defences live on the destination side — bucket
versioning or object lock, credentials for the source host that cannot delete
or overwrite existing versions, and pruning from a trusted host. Note that S3
`PutObject` overwrites an existing key, so PUT permission alone is not
append-only.
2. **Compression reveals sizes.** Blobs and `db.zst.age` are zstd-compressed
then age-encrypted; the manifest is compressed only. age does not pad, so an
object's size is the exact compressed length of its contents. All new chunks
packed into one blob share a single zstd stream (8 MiB window, 4 MiB at
compression levels 1-2), and a blob is closed at `blob_size_limit` and at the
end of each configured path. Because a stored chunk is never packed again,
someone who can write into a backed-up file and watch blob sizes learns
something only when their controlled data and a secret land in the same chunk
of a file that keeps changing. Advice: back up any outsider-writable
directory as its own snapshot.
3. **Chunking uses no secret.** The FastCDC parameters are fixed and public. The
default 10 MB average yields chunks between 2.5 MB and 40 MB, and any file of
2.5 MB or less is a single chunk. At the default 10 GB `blob_size_limit` a
blob holds hundreds of chunks, so individual chunk lengths are not visible in
the blob's size; lowering the limit toward the chunk size begins to expose
them.
4. **Decrypted data on local disk.** These commands stage plaintext under
`$TMPDIR`:
- `snapshot restore`: decrypted blobs under `vaultik-blobcache-*/`, with no
size cap, and the decrypted metadata database at
`vaultik-restore-*/snapshot.db`.
- `snapshot files`: the decrypted metadata database at
`vaultik-restore-*/snapshot.db`.
- `verify --deep`: the decrypted metadata database at
`vaultik-verify-*/snapshot.db`.
- `snapshot create`: a plaintext copy of the index at
`vaultik-snapshot-*/snapshot.db`.
These files are created `0600` and removed on success, but a `kill -9` or a
power loss leaves them behind — delete any leftover `vaultik-*` directory
under `$TMPDIR` by hand. `$TMPDIR` should be trusted to the same degree as
the restore target.
5. **Store permissions differ per command.** The backed-up host needs only PUT
to run `snapshot create`: it writes blobs and metadata and neither reads nor
deletes them. Other commands need more — `snapshot verify`,
`snapshot restore`, and `prune` list and read; `prune`, `snapshot purge`,
`snapshot remove`, and `remote nuke` also delete. The recommended cron line
uses `--prune`, which runs `prune` on the backed-up host, so granting that
host `--prune` gives it credentials that can delete its own backups. To keep
the source host to PUT only, prune from a separate trusted host instead.
6. **Changing recipients does not re-encrypt existing data.** Deduplicated
chunks and same-named blobs already on the destination stay encrypted to the
recipients in force when they were written. A new snapshot that reuses them
cannot be restored with a newly added recipient's key alone, because those
reused objects were never encrypted to it. To make everything readable by a
new key, run `vaultik database delete` and take a full backup to a fresh
destination or prefix.
7. **X25519 recipients only.** vaultik rejects age ssh and plugin recipients.
Long-lived ciphertext held by a third party (the destination operator) has no
fallback if X25519 is ever broken: there is no second recipient type and no
post-quantum option.
1. **No proof of authorship.** Restore and `verify --deep` prove that data decrypts with the age private key and matches its unkeyed content hashes. They do not prove who wrote it: anyone who knows a recipient public key and can replace objects on the destination can substitute a snapshot they built. The recipient string is not stored at the destination, but a compromised backed-up host has it. Defences live on the destination side — bucket versioning or object lock, credentials for the source host that cannot delete or overwrite existing versions, and pruning from a trusted host. Note that S3 `PutObject` overwrites an existing key, so PUT permission alone is not append-only.
2. **Compression reveals sizes.** Blobs and `db.zst.age` are zstd-compressed then age-encrypted; the manifest is compressed only. age does not pad, so an object's size is the exact compressed length of its contents. All new chunks packed into one blob share a single zstd stream (8 MiB window, 4 MiB at compression levels 1-2), and a blob is closed at `blob_size_limit` and at the end of each configured path. Because a stored chunk is never packed again, someone who can write into a backed-up file and watch blob sizes learns something only when their controlled data and a secret land in the same chunk of a file that keeps changing. Advice: back up any outsider-writable directory as its own snapshot.
3. **Chunking uses no secret.** The FastCDC parameters are fixed and public. The default 10 MB average yields chunks between 2.5 MB and 40 MB, and any file of 2.5 MB or less is a single chunk. At the default 10 GB `blob_size_limit` a blob holds hundreds of chunks, so individual chunk lengths are not visible in the blob's size; lowering the limit toward the chunk size begins to expose them.
4. **Decrypted data on local disk.** Several commands stage plaintext under `$TMPDIR`: `snapshot restore` writes decrypted blobs under `vaultik-blobcache-*/` (no size cap) and the decrypted metadata database at `vaultik-restore-*/snapshot.db`; `verify --deep` writes that database at `vaultik-verify-*/snapshot.db`; `snapshot create` keeps a plaintext copy of the index at `vaultik-snapshot-*/snapshot.db`. These files are created `0600` and removed on success, but a `kill -9` or a power loss leaves them behind — delete any leftover `vaultik-*` directory under `$TMPDIR` by hand. `$TMPDIR` should be trusted to the same degree as the restore target.
5. **Store permissions differ per command.** The backed-up host needs only PUT to run `snapshot create`: it writes blobs and metadata and neither reads nor deletes them. Other commands need more — `snapshot verify`, `snapshot restore`, and `prune` list and read; `prune`, `snapshot purge`, `snapshot remove`, and `remote nuke` also delete. The recommended cron line uses `--prune`, which runs `prune` on the backed-up host, so granting that host `--prune` gives it credentials that can delete its own backups. To keep the source host to PUT only, prune from a separate trusted host instead.
6. **Changing recipients does not re-encrypt existing data.** Deduplicated chunks and same-named blobs already on the destination stay encrypted to the recipients in force when they were written. A new snapshot that reuses them cannot be restored with a newly added recipient's key alone, because those reused objects were never encrypted to it. To make everything readable by a new key, run `vaultik database delete` and take a full backup to a fresh destination or prefix.
7. **X25519 recipients only.** vaultik rejects age ssh and plugin recipients. Long-lived ciphertext held by a third party (the destination operator) has no fallback if X25519 is ever broken: there is no second recipient type and no post-quantum option.
## Consistency Guarantees
1. **Blobs are immutable** - Once written, a blob is never modified
2. **Blobs are written before metadata** - A snapshot's metadata is only written
after all its blobs are successfully uploaded
3. **Metadata is written atomically** - Both db.zst.age and manifest.json.zst
are written as complete files
4. **A snapshot is marked complete in the local DB only after its metadata is
uploaded** - `finalizeSnapshotMetadata` runs `ExportSnapshotMetadata` first
and records completion (`MarkSnapshotComplete`) only once the export succeeds
(see the backup data flow in [ARCHITECTURE.md](ARCHITECTURE.md)). A crash
during the export therefore leaves the snapshot incomplete, so the next
backup's `PruneDatabase` drops it and re-backs-up its data, rather than
leaving a completed-looking row in the local index with no matching metadata
on the destination store. (A crash in the brief moment after the export
succeeds but before completion is recorded leaves a fully-restorable snapshot
on the destination that the local index drops as incomplete on the next run;
`snapshot list` then reports it honestly as remote-only, which is the safe
direction: the destination copy stays restorable.)
2. **Blobs are written before metadata** - A snapshot's metadata is only written after all its blobs are successfully uploaded
3. **Metadata is written atomically** - Both db.zst.age and manifest.json.zst are written as complete files
4. **A snapshot is marked complete in the local DB only after its metadata is uploaded** - `finalizeSnapshotMetadata` runs `ExportSnapshotMetadata` first and records completion (`MarkSnapshotComplete`) only once the export succeeds (see the backup data flow in [ARCHITECTURE.md](../ARCHITECTURE.md)). A crash during the export therefore leaves the snapshot incomplete, so the next backup's `PruneDatabase` drops it and re-backs-up its data, rather than leaving a completed-looking row in the local index with no matching metadata on the destination store. (A crash in the brief moment after the export succeeds but before completion is recorded leaves a fully-restorable snapshot on the destination that the local index drops as incomplete on the next run; `snapshot list` then reports it honestly as remote-only, which is the safe direction: the destination copy stays restorable.)
## 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
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. 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
To restore from a backup, you need:
1. **The Age private key** - To decrypt blobs and database
2. **The snapshot metadata** - Both files from the snapshot's metadata directory
3. **All referenced blobs** - As listed in the manifest
The restoration process:
1. Download and decrypt the database dump to understand file structure
2. Download and decrypt the required blobs
3. Reconstruct files from their chunks
-22
View File
@@ -1,22 +0,0 @@
# Workflow
- branch (from `main`)
- do the work in Next Step
- delete Next Step from `TODO.md`
- move the top item of Future Steps into Next Step
- commit (`TODO.md` changes in the same commit as the work)
- merge to `main` if the branch is not protected, otherwise open a PR
- push
# Status
pre-1.0
# Next Step
Fix the open bugs on the issue tracker that block the release. Merging `next`
into `main` is the owner's.
# Future Steps
Work planned after 1.0 is listed in the README [roadmap](../README.md#roadmap).
+1 -2
View File
@@ -22,9 +22,7 @@ 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/mod v0.29.0
golang.org/x/sync v0.18.0
golang.org/x/sys v0.38.0
golang.org/x/term v0.37.0
@@ -258,6 +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
-34
View File
@@ -2,10 +2,8 @@ package blobgen_test
import (
"bytes"
"errors"
"fmt"
"testing"
"testing/iotest"
"filippo.io/age"
"github.com/stretchr/testify/assert"
@@ -122,38 +120,6 @@ func TestNewReaderTrailingAndGarbage(t *testing.T) {
})
}
// TestNewReaderGarbageErrorQuotesNoBytes checks that lines of text in
// place of a blob fail with ErrNotAgeStream, and that the error carries
// none of their bytes. The lines end in a newline because age's own error
// quotes the data's first line only when it reads a whole line.
func TestNewReaderGarbageErrorQuotesNoBytes(t *testing.T) {
t.Parallel()
id, _ := makeIdentity(t)
garbage := bytes.Repeat([]byte("garbage-bytes-\n"), 100)
_, err := blobgen.NewReader(bytes.NewReader(garbage), id)
require.ErrorIs(t, err, blobgen.ErrNotAgeStream)
assert.NotContains(t, err.Error(), "garbage-bytes-")
}
// errConnectionReset stands for a storage read that fails.
var errConnectionReset = errors.New("connection reset")
// TestNewReaderReadFailure checks that a failed read of the age header is
// returned as that read error, not as ErrNotAgeStream.
func TestNewReaderReadFailure(t *testing.T) {
t.Parallel()
id, _ := makeIdentity(t)
_, err := blobgen.NewReader(iotest.ErrReader(errConnectionReset), id)
require.ErrorIs(t, err, errConnectionReset)
assert.NotErrorIs(t, err, blobgen.ErrNotAgeStream)
}
// TestNewWriterInvalidLevel covers the rejected end of issue case 9: an
// out-of-range compression level errors and writes nothing to the destination.
func TestNewWriterInvalidLevel(t *testing.T) {
+2 -38
View File
@@ -11,11 +11,6 @@ import (
"github.com/klauspost/compress/zstd"
)
// ErrNotAgeStream is returned by NewReader when the data cannot be opened
// as an age stream, for example because its header is malformed. It
// replaces age's own error, which can quote the data's first bytes.
var ErrNotAgeStream = errors.New("not a valid age stream")
// Reader wraps decompression and decryption with SHA256 verification
type Reader struct {
reader io.Reader
@@ -29,25 +24,11 @@ type Reader struct {
// NewReader creates a new Reader that decrypts, decompresses, and verifies
// data. Every supplied identity is offered to age.Decrypt, so a blob
// encrypted to any one of them can be read.
//
// A failure to read r is returned as that error, and a blob encrypted to
// none of the identities as age.NoIdentityMatchError. Any other failure
// to open the age stream is ErrNotAgeStream.
func NewReader(r io.Reader, identities ...age.Identity) (*Reader, error) {
src := &readErrorRecorder{reader: r}
decReader, err := age.Decrypt(src, identities...)
// Create decryption reader
decReader, err := age.Decrypt(r, identities...)
if err != nil {
var noMatch *age.NoIdentityMatchError
switch {
case src.err != nil:
return nil, fmt.Errorf("reading age header: %w", src.err)
case errors.As(err, &noMatch):
return nil, fmt.Errorf("creating decryption reader: %w", err)
default:
return nil, ErrNotAgeStream
}
}
// Create decompression reader
@@ -71,23 +52,6 @@ func NewReader(r io.Reader, identities ...age.Identity) (*Reader, error) {
}, nil
}
// readErrorRecorder passes reads through to reader and keeps the first
// error other than io.EOF, so NewReader can tell a failed read from bad
// data.
type readErrorRecorder struct {
reader io.Reader
err error
}
func (r *readErrorRecorder) Read(p []byte) (int, error) {
n, err := r.reader.Read(p)
if err != nil && !errors.Is(err, io.EOF) && r.err == nil {
r.err = err
}
return n, err
}
// Read implements io.Reader
func (r *Reader) Read(p []byte) (int, error) {
n, err := r.teeReader.Read(p)
+21 -15
View File
@@ -7,11 +7,13 @@ import (
"context"
"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"
@@ -38,11 +40,10 @@ const (
// prune, remote nuke) write the local index or the remote store. They
// hold the PID lock so that at most one runs at a time.
mutating lockMode = iota
// readOnly commands (info, snapshot list, snapshot files, snapshot
// verify, remote info, snapshot restore) do not write the local index
// or the remote store, so they run without the lock and are never
// blocked by a running mutator. restore writes only to the target
// directory it is given.
// readOnly commands (info, snapshot list, snapshot verify, remote info,
// snapshot restore) do not write the local index or the remote store,
// so they run without the lock and are never blocked by a running
// mutator. restore writes only to the target directory it is given.
readOnly
)
@@ -89,7 +90,7 @@ func setupGlobals(
// blank line. Used both from the fx hook (for subcommand invocations) and
// from the root cobra Run handler (for `vaultik` with no subcommand).
func writeStartupBanner(w *ui.Writer, startTime time.Time, shortCommit string) {
w.Bannerf("%s %s by %s (commit %s, commit date %s) starting up at %s.",
w.Bannerf("%s %s by %s (commit %s, built on %s) starting up at %s.",
globals.Appname, globals.Version, globals.Author,
shortCommit, globals.CommitDate,
startTime.Format(time.RFC3339))
@@ -145,12 +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,
// from the library fx is built on, unwraps those layers and returns the
// real error whole. Cutting the text at "): " instead would also cut a
// real error that contains it, such as the blob_size_limit one.
// Users care about the real error, not the DI plumbing. We strip everything
// up through the last "): " (which is always the close-paren of an fx
// function-location annotation followed by the wrapped error).
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
@@ -311,7 +316,7 @@ func RunOperation(
}
// runVaultikApp runs the standard single-operation command lifecycle
// shared by the snapshot list/files/purge/remove and remote nuke subcommands:
// shared by the snapshot list/purge/remove and remote nuke subcommands:
// resolve the config, then run op against the Vaultik instance through
// RunOperation, reporting a failure prefixed with failMsg on stderr. mode
// says whether the command takes the PID lock. jsonOutput marks a command
@@ -338,7 +343,7 @@ func runVaultikApp(
},
Mode: mode,
}, op, func(err error) {
log.Info(failMsg, "error", err)
log.Error(failMsg, "error", err)
ReportErrorf("%s: %v", failMsg, err)
})
}
@@ -350,7 +355,8 @@ func runVaultikApp(
// only one runs at a time; a read-only command runs without it and is not
// blocked while a mutator holds the lock (opts.Mode).
func RunWithApp(ctx context.Context, opts AppOptions) error {
release, err := acquireLockIfMutating(opts.Mode, pidlock.Dir())
release, err := acquireLockIfMutating(opts.Mode,
filepath.Join(xdg.DataHome, "vaultik"))
if err != nil {
return err
}
+39 -46
View File
@@ -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")
err := os.WriteFile(path, []byte("snapshots:\n"+
" test:\n"+
" paths: [/tmp/vaultik-test-source]\n"+
"storage_url: file:///tmp/vaultik-test-storage\n"+
"chunk_size: 10MB\n"+
"blob_size_limit: 30MB\n"), 0o600)
if err != nil {
t.Fatalf("write config: %v", err)
tests := []struct {
name string
in string
want string
}{
{
name: "real fx error chain",
in: `could not build arguments for function ` +
`"sneak.berlin/go/vaultik/internal/cli".newSnapshotCreateCommand.func1.1 ` +
`(/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(
fx.NopLogger,
fx.Supply(config.Path(path)),
config.Module,
fx.Invoke(func(*config.Config) {}),
)
err = app.Start(t.Context())
if err == nil {
t.Fatal("app started; want a blob_size_limit error")
}
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) {
for _, tt := range tests {
t.Run(tt.name, func(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")
//nolint:err113 // test constructs errors from table input
got := cleanStartupError(errors.New(tt.in)).Error()
if got != tt.want {
t.Errorf("got %q, want %q", got, tt.want)
}
})
}
}
+65 -206
View File
@@ -8,8 +8,6 @@ import (
"os/exec"
"path/filepath"
"reflect"
"runtime"
"slices"
"strconv"
"strings"
"unicode/utf8"
@@ -31,7 +29,7 @@ const configSetArgs = 2
// parent config dirs (e.g. ~/.config) are conventionally traversable.
const configDirMode = 0o755
// configYAMLIndent matches the 2-space indentation of the default config,
// configYAMLIndent matches the 2-space indentation of defaultConfigTemplate,
// so `config set` writes the file back with the same indentation rather than
// yaml.Marshal's 4-space default.
const configYAMLIndent = 2
@@ -46,33 +44,9 @@ 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")
errSetS3KeysFirst = errors.New(
"set s3.access_key_id and s3.secret_access_key first, " +
"then storage_url")
)
// storageURLKey is the config key that selects the storage backend.
const storageURLKey = "storage_url"
// macOS is the value of runtime.GOOS on macOS.
const macOS = "darwin"
// defaultConfigText returns the file `config init` writes on the operating
// system goos, named as runtime.GOOS names it. Only macOS gets the apps
// snapshot, since /Applications exists nowhere else.
func defaultConfigText(goos string) string {
if goos == macOS {
return defaultConfigHead + appsSnapshotConfig + defaultConfigTail
}
return defaultConfigHead + defaultConfigTail
}
// defaultConfigHead is the default config up to the end of the home snapshot.
const defaultConfigHead = `# vaultik configuration
const defaultConfigTemplate = `# vaultik configuration
# Documentation: https://sneak.berlin/go/vaultik
# ─── REQUIRED ────────────────────────────────────────────────────────────────
@@ -190,10 +164,7 @@ snapshots:
- "/Movies/ProxyMedia"
- "/Music/iTunes/Album Artwork"
- "/Pictures/iPod Photo Cache"
`
// appsSnapshotConfig is the apps snapshot of the default config.
const appsSnapshotConfig = `
# Third-party applications. OS-provided apps live in /System/Applications
# on modern macOS and are never in /Applications, but Apple-installed
# App Store apps (Safari, GarageBand, iWork, iMovie) are excluded since
@@ -214,10 +185,7 @@ const appsSnapshotConfig = `
- "/Steam.app"
- "/VirtualBox.app"
- "/Utilities/Adobe Installers"
`
// defaultConfigTail is the default config after the snapshots.
const defaultConfigTail = `
# Storage backend (pick ONE of the three forms below).
#
# S3-compatible:
@@ -252,7 +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
@@ -267,23 +235,10 @@ 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
# Path to the local SQLite index database. It must be an absolute path;
# ~ is expanded.
# Path to the local SQLite index database.
# Default: the platform data directory, e.g.
# macOS: ~/Library/Application Support/vaultik/index.sqlite
# Linux: ~/.local/share/vaultik/index.sqlite
@@ -296,12 +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())
@@ -340,8 +289,7 @@ on macOS, ~/.config/ on Linux, /etc/vaultik/ as root).`,
return fmt.Errorf("creating config directory %s: %w", dir, err)
}
err = os.WriteFile(path, []byte(defaultConfigText(runtime.GOOS)),
configFileMode)
err = os.WriteFile(path, []byte(defaultConfigTemplate), configFileMode)
if err != nil {
return fmt.Errorf("writing config file: %w", err)
}
@@ -375,15 +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 $EDITOR is the point
ed := exec.CommandContext(cmd.Context(),
"sh", "-c", editor+` "$@"`, editor, path)
ed := exec.CommandContext(cmd.Context(), editor, path)
ed.Stdin = os.Stdin
ed.Stdout = os.Stdout
ed.Stderr = os.Stderr
@@ -444,16 +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 path are created: as a list when the next path element is a
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 is checked one setting at a time. Examples
are the file config init writes before storage_url is set, and one
with a ${ENV:...} reference to a variable not set in this shell. In
such a config, an unknown key or a value of the wrong type is refused.
the file back, preserving comments and formatting. Intermediate maps
are created as needed.
Examples:
vaultik config set storage_url "file:///mnt/backups"
@@ -483,21 +416,7 @@ func writeConfigSet(out *ui.Writer, path, key, value string) error {
return err
}
oldData, err := marshalConfigYAML(root)
if err != nil {
return fmt.Errorf("marshaling config: %w", err)
}
keys := strings.Split(key, ".")
if keys[0] != config.EnvSection {
_, err = config.SettingType(keys)
if err != nil {
return err
}
}
err = yamlPathSet(root, keys, value)
err = yamlPathSet(root, strings.Split(key, "."), value)
if err != nil {
return err
}
@@ -507,21 +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 wouldNotLoadError(key, err)
}
err = os.WriteFile(path, data, configFileMode)
if err != nil {
return fmt.Errorf("writing config file: %w", err)
@@ -543,75 +447,8 @@ func writeConfigSet(out *ui.Writer, path, key, value string) error {
return nil
}
// wouldNotLoadError returns the refusal of a change to key that vaultik
// would not load for reason. When storage_url moves to s3:// before the S3
// credentials are set, it says to set them first: they can be set while
// the old storage_url is still in place.
func wouldNotLoadError(key string, reason error) error {
if key == storageURLKey &&
(errors.Is(reason, config.ErrS3KeyIDRequired) ||
errors.Is(reason, config.ErrS3SecretRequired)) {
return fmt.Errorf("%w: %w; %w", errWouldNotLoad, reason,
errSetS3KeysFirst)
}
return fmt.Errorf("%w: %w", errWouldNotLoad, reason)
}
// 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 the default config. yaml.Marshal defaults to 4 spaces, which
// matching defaultConfigTemplate. yaml.Marshal defaults to 4 spaces, which
// would reindent the whole file on the first `config set` despite the promise
// to preserve formatting.
func marshalConfigYAML(root *yaml.Node) ([]byte, error) {
@@ -716,8 +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,
// and sets the final key to the given scalar value. Numeric path
// yamlPathSet navigates a dotted key path, creating intermediate maps as
// 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 {
@@ -730,12 +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 {
@@ -767,23 +604,51 @@ func yamlPathSet(root *yaml.Node, keys []string, value string) error {
}
// configKeyIsString reports whether the dotted key names a string in
// config.Config, as s3.access_key_id and snapshots.home.exclude.0 do.
// config.Config, following the fields' yaml tags, as s3.access_key_id and
// snapshots.home.exclude.0 do.
func configKeyIsString(keys []string) bool {
typ, err := config.SettingType(keys)
typ := reflect.TypeFor[config.Config]()
return err == nil && typ.Kind() == reflect.String
for _, key := range keys {
switch {
case typ.Kind() == reflect.Map || typ.Kind() == reflect.Slice:
// The key is a snapshot name or a list index.
typ = typ.Elem()
case typ.Kind() == reflect.Struct:
field, ok := yamlField(typ, key)
if !ok {
return false
}
typ = field.Type
default:
return false
}
}
return typ.Kind() == reflect.String
}
// yamlSetInMapping resolves (creating if needed) the value node for the
// path element keys[i] within a mapping node, setting it to value when it
// is the final path element, and returns the node to descend into.
func yamlSetInMapping(
node *yaml.Node, keys []string, i int, value string, last bool,
) *yaml.Node {
// yamlField returns the field of struct type typ whose yaml tag names key.
func yamlField(typ reflect.Type, key string) (reflect.StructField, bool) {
for field := range typ.Fields() {
name, _, _ := strings.Cut(field.Tag.Get("yaml"), ",")
if name == key {
return field, true
}
}
return reflect.StructField{}, false
}
// yamlSetInMapping resolves (creating if needed) the value node for key
// within a mapping node, setting it to value when it is the final path
// element, and returns the node to descend into.
func yamlSetInMapping(node *yaml.Node, key, 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
@@ -791,8 +656,13 @@ func yamlSetInMapping(
}
if valueNode == nil {
keyNode := &yaml.Node{Kind: yaml.ScalarNode, Value: keys[i]}
valueNode = newPathNode(keys, i, value)
keyNode := &yaml.Node{Kind: yaml.ScalarNode, Value: key}
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)
@@ -820,7 +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)
}
@@ -828,22 +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
+11 -410
View File
@@ -2,7 +2,6 @@ package cli //nolint:testpackage // exercises unexported yamlPathGet/yamlPathSet
import (
"bytes"
"errors"
"os"
"path/filepath"
"strconv"
@@ -14,15 +13,14 @@ import (
"sneak.berlin/go/vaultik/internal/ui"
)
// TestDefaultConfigParsesOnMacOS ensures the config `config init` writes on
// macOS is valid YAML that unmarshals into the Config struct with the
// expected snapshots.
func TestDefaultConfigParsesOnMacOS(t *testing.T) {
// TestDefaultConfigTemplateParses ensures the init template is valid YAML
// that unmarshals into the Config struct with the expected snapshots.
func TestDefaultConfigTemplateParses(t *testing.T) {
t.Parallel()
var cfg config.Config
err := yaml.Unmarshal([]byte(defaultConfigText("darwin")), &cfg)
err := yaml.Unmarshal([]byte(defaultConfigTemplate), &cfg)
if err != nil {
t.Fatalf("default config template is not valid YAML: %v", err)
}
@@ -60,60 +58,24 @@ func TestDefaultConfigParsesOnMacOS(t *testing.T) {
}
}
// TestDefaultConfigOnLinux checks that the config `config init` writes on
// Linux loads with its home snapshot and without the apps snapshot, whose
// /Applications exists only on macOS.
func TestDefaultConfigOnLinux(t *testing.T) {
t.Parallel()
path := filepath.Join(t.TempDir(), "config.yml")
err := os.WriteFile(path, []byte(defaultConfigText("linux")), configFileMode)
if err != nil {
t.Fatalf("write config: %v", err)
}
err = writeConfigSet(ui.NewWithColor(&bytes.Buffer{}, false),
path, "storage_url", "file:///mnt/backups")
if err != nil {
t.Fatalf("config set storage_url: %v", err)
}
cfg, err := config.Load(path)
if err != nil {
t.Fatalf("config.Load: %v", err)
}
if _, ok := cfg.Snapshots["home"]; !ok {
t.Error("expected 'home' snapshot in the Linux default config")
}
if _, ok := cfg.Snapshots["apps"]; ok {
t.Error("the Linux default config should have no 'apps' snapshot")
}
}
// 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(defaultConfigText(macOS)), configFileMode)
err := os.WriteFile(path, []byte(defaultConfigTemplate), configFileMode)
if err != nil {
t.Fatalf("write config: %v", err)
}
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)
}
@@ -128,345 +90,8 @@ func TestConfigSetRecipientOnFreshConfig(t *testing.T) {
t.Fatalf("config.Load: %v", err)
}
if len(cfg.AgeRecipients) != 1 || cfg.AgeRecipients[0] != testRecipient {
t.Errorf("age_recipients = %v, want [%s]", cfg.AgeRecipients, testRecipient)
}
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:
- "~"
`
// testS3URL is an S3 storage_url, which needs credentials to load.
const testS3URL = "s3://bucket/prefix?endpoint=https://s3.example.com"
// configWithS3Keys loads: its storage_url is testS3URL and both S3 keys are
// set.
const configWithS3Keys = storageURLKey + ": " + testS3URL + `
s3:
access_key_id: AKIAEXAMPLE
secret_access_key: example-secret
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 an unknown key or 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
}{
// Keys that no setting has, on a config that loads and on one
// that does not.
{configWithoutRecipients, "nosuchkey", "1",
`unknown config key "nosuchkey"`},
{configWithoutRecipients, "snapshots.home.exlude", "/tmp",
`unknown config key "snapshots.home.exlude"`},
{defaultConfigText(macOS), "compression_lvl", "9",
`unknown config key "compression_lvl"`},
// 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",
`chunk_size: "fast" is not a size`},
// 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"},
// An s3:// URL before its credentials names them.
{configWithoutRecipients, storageURLKey, testS3URL,
"s3.access_key_id is required for s3:// URLs; " +
"set s3.access_key_id and s3.secret_access_key first"},
{configWithoutRecipients + "s3:\n access_key_id: AKIAEXAMPLE\n",
storageURLKey, testS3URL,
"s3.secret_access_key is required for s3:// URLs; " +
"set s3.access_key_id and s3.secret_access_key first"},
// 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.
{defaultConfigText(macOS), "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)
}
})
}
}
// TestConfigSetS3KeysBeforeStorageURL checks that the order the refusal
// gives works on a config that loads with a file:// storage_url.
func TestConfigSetS3KeysBeforeStorageURL(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)
}
for _, set := range [][2]string{
{"s3.access_key_id", "AKIAEXAMPLE"},
{"s3.secret_access_key", "example-secret"},
{storageURLKey, testS3URL},
} {
err = writeConfigSet(ui.NewWithColor(&bytes.Buffer{}, false),
path, set[0], set[1])
if err != nil {
t.Fatalf("config set %s: %v", set[0], 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), storageURLKey+": "+testS3URL) {
t.Errorf("config set storage_url wrote:\n%s", data)
}
}
// TestConfigSetRefusesClearingS3Key checks that clearing s3.access_key_id on
// a config with an s3:// storage_url is refused without saying to set the
// S3 keys first. That advice is only for a change to storage_url.
func TestConfigSetRefusesClearingS3Key(t *testing.T) {
t.Parallel()
const key = "s3.access_key_id"
path := filepath.Join(t.TempDir(), "config.yml")
err := os.WriteFile(path, []byte(configWithS3Keys), configFileMode)
if err != nil {
t.Fatalf("write config: %v", err)
}
err = writeConfigSet(ui.NewWithColor(&bytes.Buffer{}, false), path, key, "")
if !errors.Is(err, errWouldNotLoad) {
t.Errorf("clearing %s gives error %v, want one saying %q",
key, err, errWouldNotLoad)
}
if errors.Is(err, errSetS3KeysFirst) {
t.Errorf("clearing %s gives error %v, want one not saying %q",
key, err, errSetS3KeysFirst)
}
data, err := os.ReadFile(path) //nolint:gosec // G304: test-controlled path
if err != nil {
t.Fatalf("read config: %v", err)
}
if string(data) != configWithS3Keys {
t.Errorf("clearing %s changed the file to:\n%s", key, data)
}
}
// TestConfigSetWritesEnvSection checks that config set writes a key under
// the top-level env section, whose keys are not settings, on a config that
// loads.
func TestConfigSetWritesEnvSection(t *testing.T) {
const name = "VAULTIK_TEST_CONFIG_SET_ENV"
// Loading the changed config sets the variable; t.Setenv restores it
// after the test.
t.Setenv(name, "")
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, "env."+name, "value")
if err != nil {
t.Fatalf("config set env.%s: %v", name, 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), "env:\n "+name+": value\n") {
t.Errorf("config set env.%s wrote:\n%s", name, data)
if len(cfg.AgeRecipients) != 1 || cfg.AgeRecipients[0] != recipient {
t.Errorf("age_recipients = %v, want [%s]", cfg.AgeRecipients, recipient)
}
}
@@ -549,7 +174,7 @@ func loadAfterConfigSet(t *testing.T, key, value string) *config.Config {
path := filepath.Join(t.TempDir(), "config.yml")
err := os.WriteFile(path, []byte(defaultConfigText(macOS)), configFileMode)
err := os.WriteFile(path, []byte(defaultConfigTemplate), configFileMode)
if err != nil {
t.Fatalf("write config: %v", err)
}
@@ -816,30 +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, ".")
}
+12 -18
View File
@@ -6,9 +6,7 @@ import (
"github.com/spf13/cobra"
"sneak.berlin/go/vaultik/internal/config"
"sneak.berlin/go/vaultik/internal/database"
"sneak.berlin/go/vaultik/internal/log"
"sneak.berlin/go/vaultik/internal/vaultik"
)
// NewDatabaseCommand creates the database command group
@@ -17,12 +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(
@@ -92,24 +84,26 @@ Use --force to skip the confirmation prompt.`,
var confirm string
// A failure to read the answer means no confirmation.
_, err = fmt.Fscanln(cmd.InOrStdin(), &confirm)
_, err = fmt.Scanln(&confirm)
if err != nil || confirm != "yes" {
_, _ = fmt.Fprintln(w, "Aborted.")
return vaultik.ErrNotConfirmed
//nolint:nilerr // a failed/aborted confirmation is a clean abort
return nil
}
}
// Delete the database file and its side files. A side file
// may not exist, so only failing to delete the database file
// is an error.
for _, indexFile := range database.IndexFiles(dbPath) {
err = os.Remove(indexFile)
if err != nil && indexFile == dbPath {
// Delete the database file
err = os.Remove(dbPath)
if err != nil {
return fmt.Errorf("failed to delete database: %w", err)
}
}
// Also delete WAL and SHM files if they exist
walPath := dbPath + "-wal"
shmPath := dbPath + "-shm"
_ = os.Remove(walPath) // Ignore errors - files may not exist
_ = os.Remove(shmPath)
out.Infof("Local state database deleted: %s.", dbPath)
log.Info("Local state database deleted", "path", dbPath)
-75
View File
@@ -1,75 +0,0 @@
package cli //nolint:testpackage // sets the unexported rootFlags directly
import (
"bytes"
"errors"
"io"
"os"
"path/filepath"
"strings"
"testing"
"sneak.berlin/go/vaultik/internal/database"
"sneak.berlin/go/vaultik/internal/vaultik"
)
// TestDatabaseDeleteDeclinedIsError checks that answering anything but
// "yes" keeps the database and returns ErrNotConfirmed, so the command
// exits non-zero.
//
//nolint:paralleltest // mutates the process-global rootFlags
func TestDatabaseDeleteDeclinedIsError(t *testing.T) {
dir := t.TempDir()
dbPath, cfgPath := seedDatabaseDeleteConfig(t, dir)
setRootFlags(t, RootFlags{ConfigPath: cfgPath})
var out bytes.Buffer
cmd := newDatabaseDeleteCommand()
cmd.SetOut(&out)
cmd.SetErr(io.Discard)
cmd.SetIn(strings.NewReader("no\n"))
cmd.SetArgs(nil)
err := cmd.Execute()
if !errors.Is(err, vaultik.ErrNotConfirmed) {
t.Errorf("declined database delete returned %v, want %v",
err, vaultik.ErrNotConfirmed)
}
_, err = os.Stat(dbPath)
if err != nil {
t.Errorf("declined database delete removed the file: %v", err)
}
if !strings.Contains(out.String(), "Aborted.") {
t.Errorf("declined database delete printed %q, want Aborted.",
out.String())
}
}
// TestDatabaseDeleteRemovesSideFiles checks that the side files SQLite
// keeps beside the database file are deleted with it.
//
//nolint:paralleltest // mutates the process-global rootFlags
func TestDatabaseDeleteRemovesSideFiles(t *testing.T) {
dir := t.TempDir()
dbPath, cfgPath := seedDatabaseDeleteConfig(t, dir)
indexFiles := database.IndexFiles(dbPath)
for _, indexFile := range indexFiles {
seedFile(t, dir, filepath.Base(indexFile), "data")
}
setRootFlags(t, RootFlags{ConfigPath: cfgPath})
mustExecute(t, newDatabaseDeleteCommand(), "--force")
for _, indexFile := range indexFiles {
_, err := os.Stat(indexFile)
if !os.IsNotExist(err) {
t.Errorf("database delete left %s: stat err = %v", indexFile, err)
}
}
}
-7
View File
@@ -21,8 +21,6 @@ const shortCommitLen = 12
const exitCodeInterrupted = 130
// Entry is the main entry point for the CLI application.
// It first calls globals.FillUnsetFromBuildInfo, which fills in the
// version, commit and commit date that the linker flags did not set.
// It prints the startup banner to stderr (unless a banner-suppressing
// flag is present in os.Args — see bannerSuppressedInArgs), executes the
// root cobra command, and routes any returned error through the
@@ -35,7 +33,6 @@ const exitCodeInterrupted = 130
// deferred profile writers run before the process ends. See run in
// cmd/vaultik/main.go.
func Entry() int {
globals.FillUnsetFromBuildInfo()
emitStartupBanner(os.Args[1:], os.Stderr)
rootCmd := NewRootCommand()
@@ -85,10 +82,6 @@ func emitStartupBanner(args []string, w io.Writer) {
// 🛑 ERROR: format. Use it from goroutine error paths (where returning
// an error to cobra isn't an option) and anywhere else a CLI command
// must surface a failure outside the normal RunE return path.
//
// This line is the one report of the failure. A caller that also logs
// the failure logs it at info level, so the record appears only under
// --verbose or --debug and the error is not printed twice.
func ReportErrorf(format string, args ...any) {
ui.New(os.Stderr).Errorf(format, args...)
}
-30
View File
@@ -13,7 +13,6 @@ import (
"github.com/adrg/xdg"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"sneak.berlin/go/vaultik/internal/globals"
)
// Command words and flags used to build argument vectors below. They are
@@ -113,35 +112,6 @@ func TestBannerStillPrintedWithoutSuppressingFlag(t *testing.T) {
}
}
// TestBannerLabelsCommitDate checks that the banner prints the commit
// and the commit date, each after its own label. Commit and CommitDate
// get different values, so printing the wrong one fails.
//
//nolint:paralleltest // sets globals.Commit and globals.CommitDate
func TestBannerLabelsCommitDate(t *testing.T) {
const (
commit = "abc1234"
commitDate = "2026-11-09"
)
previousCommit, previousCommitDate := globals.Commit, globals.CommitDate
t.Cleanup(func() {
globals.Commit = previousCommit
globals.CommitDate = previousCommitDate
})
globals.Commit = commit
globals.CommitDate = commitDate
var banner bytes.Buffer
emitStartupBanner(nil, &banner)
assert.Contains(t, banner.String(),
"(commit "+commit+", commit date "+commitDate+")")
}
// TestBannerSuppressedInArgs covers the suppression scan directly,
// including the flags that suppressed the banner before --json joined
// them, so that adding --json cannot regress them.
-205
View File
@@ -1,205 +0,0 @@
package cli //nolint:testpackage // shares the fixtures and capture helpers
import (
"context"
"encoding/json"
"fmt"
"io"
"os"
"path/filepath"
"strings"
"testing"
"filippo.io/age"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"sneak.berlin/go/vaultik/internal/database"
"sneak.berlin/go/vaultik/internal/ui"
)
const (
// errorLinePrefix starts the final line that reports a failed command.
errorLinePrefix = "ERROR: "
flagVerbose = "--verbose"
cmdRestore = "restore"
// blobsDir is the directory of a destination store that holds the
// blobs.
blobsDir = "blobs"
)
// TestEntryFailureIsPrintedOnce runs commands that fail after startup
// against a destination they cannot use. `info` is not among them: it
// cannot fail after startup.
//
//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
func TestEntryFailureIsPrintedOnce(t *testing.T) {
for _, command := range [][]string{
{cmdSnapshot, cmdCreate},
{cmdSnapshot, cmdRemove, someSnapshotID},
{cmdSnapshot, cmdVerify, someSnapshotID},
{cmdRemote, cmdInfo},
{cmdPrune, flagJSON},
} {
for _, verbose := range []bool{false, true} {
name := fmt.Sprintf("%s verbose=%t", strings.Join(command, " "), verbose)
t.Run(name, func(t *testing.T) {
requireErrorPrintedOnce(t, verbose, append([]string{flagConfig,
writeUnusableDestinationConfig(t)}, command...)...)
})
}
}
}
// TestEntryBlobUploadFailureIsPrintedOnce backs up to a destination
// whose blobs directory is a file, so the blob upload fails.
//
//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
func TestEntryBlobUploadFailureIsPrintedOnce(t *testing.T) {
for _, verbose := range []bool{false, true} {
t.Run(fmt.Sprintf("verbose=%t", verbose), func(t *testing.T) {
configPath, storeDir := writeBackupConfig(t)
require.NoError(t, os.WriteFile(
filepath.Join(storeDir, blobsDir), nil, 0o600))
requireErrorPrintedOnce(t, verbose,
flagConfig, configPath, cmdSnapshot, cmdCreate)
})
}
}
// TestEntryBlobDownloadFailureIsPrintedOnce backs up, deletes the blobs
// from the destination, and restores, so the blob download fails.
//
//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
func TestEntryBlobDownloadFailureIsPrintedOnce(t *testing.T) {
for _, verbose := range []bool{false, true} {
t.Run(fmt.Sprintf("verbose=%t", verbose), func(t *testing.T) {
configPath, storeDir := writeBackupConfigWithPrivateKey(t)
code, _, _ := runEntry(t,
flagConfig, configPath, cmdSnapshot, cmdCreate)
require.Equal(t, 0, code)
require.NoError(t, os.RemoveAll(filepath.Join(storeDir, blobsDir)))
requireErrorPrintedOnce(t, verbose, flagConfig, configPath,
cmdSnapshot, cmdRestore, onlySnapshotID(t, configPath), t.TempDir())
})
}
}
// requireErrorPrintedOnce runs Entry with args, adding --verbose when
// verbose is set. The command must fail, and stderr must carry its error
// once, as the final ERROR: line. A log record carrying the same error
// appears only under --verbose.
func requireErrorPrintedOnce(t *testing.T, verbose bool, args ...string) {
t.Helper()
if verbose {
args = append(args, flagVerbose)
}
code, _, stderr := runEntry(t, args...)
require.Equal(t, 1, code)
errorLine, records := failureOutput(t, stderr)
if !verbose {
assert.Zero(t, records,
"without --verbose no log record repeats the error:\n%s", stderr)
return
}
assert.NotZero(t, records,
"--verbose must keep the log record of %q", errorLine)
}
// failureOutput requires stderr to hold exactly one ERROR: line and
// returns it, with the number of log records whose error attribute is
// the error that line reports. stderr is a pipe here, so every log
// record is a JSON object on its own line.
func failureOutput(t *testing.T, stderr string) (string, int) {
t.Helper()
var (
errorLines []string
records []map[string]any
)
for line := range strings.Lines(stderr) {
var record map[string]any
if json.Unmarshal([]byte(line), &record) == nil {
records = append(records, record)
continue
}
if strings.Contains(line, errorLinePrefix) {
errorLines = append(errorLines, strings.TrimSpace(line))
}
}
require.Len(t, errorLines, 1,
"the error must be printed once as an ERROR: line:\n%s", stderr)
// An error can run over several lines; the ERROR: line holds the
// first of them.
repeats := 0
for _, record := range records {
failure, ok := record["error"].(string)
firstLine, _, _ := strings.Cut(failure, "\n")
if ok && strings.Contains(errorLines[0], firstLine) {
repeats++
}
}
return errorLines[0], repeats
}
// writeBackupConfigWithPrivateKey builds what writeBackupConfig builds,
// with a generated key pair in place of its recipient. The config also
// holds the private key, so that restore can decrypt the backup. Returns
// the config path and the store directory.
func writeBackupConfigWithPrivateKey(t *testing.T) (string, string) {
t.Helper()
configPath, storeDir := writeBackupConfig(t)
identity, err := age.GenerateX25519Identity()
require.NoError(t, err)
out := ui.NewWithColor(io.Discard, false)
require.NoError(t, writeConfigSet(out, configPath,
"age_recipients.0", identity.Recipient().String()))
require.NoError(t, writeConfigSet(out, configPath,
"age_secret_key", identity.String()))
return configPath, storeDir
}
// onlySnapshotID returns the ID of the one snapshot in the local index
// that writeBackupConfig puts beside the config file.
func onlySnapshotID(t *testing.T, configPath string) string {
t.Helper()
ctx := context.Background()
db, err := database.New(ctx,
filepath.Join(filepath.Dir(configPath), "index.sqlite"))
require.NoError(t, err)
defer func() { require.NoError(t, db.Close()) }()
backedUp, err := database.NewRepositories(db).Snapshots.GetOnlySnapshot(ctx)
require.NoError(t, err)
return backedUp.ID.String()
}
+1 -7
View File
@@ -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
// marker a backup writes. Returns the config path.
// counterpart on the destination store. 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
-127
View File
@@ -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")
}
})
}
}
@@ -1,69 +0,0 @@
package cli //nolint:testpackage // shares runEntry and the hermetic config helpers
import (
"fmt"
"os"
"path/filepath"
"testing"
"github.com/adrg/xdg"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
// TestEntrySnapshotCreateSkipsIndexAndLockFiles backs up a directory
// that holds vaultik's index and PID file beside one other file, with no
// exclude pattern set. The summary counts only the other file. See
// https://git.eeqj.de/sneak/vaultik/issues/421.
//
// Not parallel: it replaces os.Args, os.Stdout, os.Stderr and the xdg
// globals.
func TestEntrySnapshotCreateSkipsIndexAndLockFiles(t *testing.T) {
for _, testCase := range []struct {
name string
// linked sets index_path to a symlink outside the backed-up
// directory that points to the index inside it.
linked bool
}{
{name: "index in the backed-up directory"},
{name: "index_path links into the backed-up directory", linked: true},
} {
t.Run(testCase.name, func(t *testing.T) {
dir := t.TempDir()
configPath := filepath.Join(dir, "config.yml")
sourceDir := filepath.Join(dir, "source")
storeDir := filepath.Join(dir, "store")
indexPath := filepath.Join(sourceDir, "index.sqlite")
if testCase.linked {
link := filepath.Join(dir, "index.sqlite")
require.NoError(t, os.Symlink(indexPath, link))
indexPath = link
}
contents := fmt.Sprintf(hermeticConfig,
sourceDir, storeDir, indexPath)
require.NoError(t,
os.WriteFile(configPath, []byte(contents), configFileMode))
require.NoError(t, os.Mkdir(storeDir, 0o750))
require.NoError(t, os.Mkdir(sourceDir, 0o750))
require.NoError(t, os.WriteFile(
filepath.Join(sourceDir, "file.txt"), []byte("hello"), 0o600))
// The PID file goes in a directory under XDG_DATA_HOME, which
// xdg reads at package init.
t.Setenv("XDG_DATA_HOME", filepath.Join(sourceDir, "data"))
xdg.Reload()
t.Cleanup(xdg.Reload)
code, stdout, _ := runEntry(t,
flagConfig, configPath, cmdSnapshot, cmdCreate)
require.Equal(t, 0, code)
assert.Contains(t, stdout,
"Files: 1 examined, 1 backed up, 0 unchanged.")
})
}
}
@@ -1,7 +1,6 @@
package cli //nolint:testpackage // shares runEntry and the hermetic config helpers
import (
"context"
"os"
"path/filepath"
"strings"
@@ -9,7 +8,6 @@ import (
"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.
@@ -61,8 +59,8 @@ func TestEntrySnapshotCreateRejectsKeepNewerThanBeforeBackup(t *testing.T) {
// 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 once,
// as the prune's and not as a failed snapshot creation.
// 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) {
@@ -83,98 +81,12 @@ func TestEntrySnapshotCreateReportsPostBackupPruneFailure(t *testing.T) {
assert.Contains(t, stderr, "Backup completed, but post-backup prune failed")
assert.NotContains(t, stderr, "Snapshot creation failed")
_, repeats := failureOutput(t, stderr)
assert.Zero(t, repeats, "no log record may repeat the error:\n%s", stderr)
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. The error is printed once. 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")
_, repeats := failureOutput(t, stderr)
assert.Zero(t, repeats, "no log record may repeat the error:\n%s", stderr)
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. The error is printed once. 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")
_, repeats := failureOutput(t, stderr)
assert.Zero(t, repeats, "no log record may repeat the error:\n%s", stderr)
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.
@@ -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")
}
-47
View File
@@ -1,47 +0,0 @@
package cli //nolint:testpackage // shares runEntry and the backup config helpers
import (
"encoding/json"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"sneak.berlin/go/vaultik/internal/vaultik"
)
// cmdFiles is the word of `snapshot files`, used to build argument
// vectors below.
const cmdFiles = "files"
// TestEntrySnapshotFilesListsOnlyThePath backs up two files and runs
// `snapshot files` with the snapshot ID and the path of one of them,
// which must be the only file listed.
//
//nolint:paralleltest // replaces os.Args, os.Stdout, os.Stderr and the xdg globals
func TestEntrySnapshotFilesListsOnlyThePath(t *testing.T) {
configPath, _ := writeBackupConfigWithPrivateKey(t)
// writeBackupConfig puts file.txt in the source directory beside the
// config file.
sourceDir := filepath.Join(filepath.Dir(configPath), "source")
listed := filepath.Join(sourceDir, "file.txt")
require.NoError(t, os.WriteFile(
filepath.Join(sourceDir, "other.txt"), []byte("other"), 0o600))
code, _, stderr := runEntry(t,
flagConfig, configPath, cmdSnapshot, cmdCreate)
require.Equal(t, 0, code, stderr)
code, stdout, stderr := runEntry(t, flagConfig, configPath, cmdSnapshot,
cmdFiles, onlySnapshotID(t, configPath), listed, flagJSON)
require.Equal(t, 0, code, stderr)
var entries []vaultik.ListedFile
require.NoError(t, json.Unmarshal([]byte(stdout), &entries))
require.Len(t, entries, 1, "only the path given may be listed")
assert.Equal(t, listed, entries[0].Path)
}
-75
View File
@@ -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")
}
+1 -1
View File
@@ -48,7 +48,7 @@ func TestCLIEntry(t *testing.T) {
} else {
// Check snapshot subcommands
expectedSubCommands := []string{
"create", "list", "files", "purge", "verify", "remove", "restore",
"create", "list", "purge", "verify", "remove", "restore",
}
for _, expected := range expectedSubCommands {
found := false
@@ -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]")
})
}
}
+1 -1
View File
@@ -39,7 +39,7 @@ func NewInfoCommand() *cobra.Command {
}, func(v *vaultik.Vaultik) error {
return v.ShowInfo()
}, func(err error) {
log.Info("Failed to show info", "error", err)
log.Error("Failed to show info", "error", err)
ReportErrorf("Failed to show info: %v", err)
})
},
+4 -14
View File
@@ -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
unreferenced blobs and directories under metadata/ with no manifest
from the backup destination store.
Long: `Removes orphaned data from both the local index database and
unreferenced blobs 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
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.
set.
Snapshot create --prune runs the same cleanup automatically; this
command is the manual entry point for the same work (e.g. after a
@@ -60,7 +50,7 @@ referenced.`,
}, func(v *vaultik.Vaultik) error {
return v.Prune(opts)
}, func(err error) {
log.Info("Prune operation failed", "error", err)
log.Error("Prune operation failed", "error", err)
ReportErrorf("Prune failed: %v", err)
})
},
+1 -7
View File
@@ -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
@@ -98,7 +92,7 @@ func newRemoteInfoCommand() *cobra.Command {
}, func(v *vaultik.Vaultik) error {
return v.RemoteInfo(jsonOutput)
}, func(err error) {
log.Info("Failed to get remote info", "error", err)
log.Error("Failed to get remote info", "error", err)
ReportErrorf("Failed to get remote info: %v", err)
})
},
-15
View File
@@ -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
}
+11 -77
View File
@@ -9,10 +9,6 @@ import (
"sneak.berlin/go/vaultik/internal/vaultik"
)
// filesMaxArgs is the maximum positional argument count of
// `snapshot files <snapshot-id> [path]`.
const filesMaxArgs = 2
var (
errSnapshotIDRequired = errors.New("snapshot ID required")
errWrongArgCount = errors.New("wrong argument count")
@@ -45,18 +41,11 @@ 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
cmd.AddCommand(newSnapshotCreateCommand())
cmd.AddCommand(newSnapshotListCommand())
cmd.AddCommand(newSnapshotFilesCommand())
cmd.AddCommand(newSnapshotPurgeCommand())
cmd.AddCommand(newSnapshotVerifyCommand())
cmd.AddCommand(newSnapshotRemoveCommand())
@@ -114,22 +103,13 @@ on Linux), then /etc/vaultik/config.yml.`,
return v.CreateSnapshot(opts)
}, func(err error) {
if errors.Is(err, vaultik.ErrPostBackupPruneFailed) {
log.Info("Post-backup prune failed", "error", err)
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.Info("Backup completed with an error", "error", err)
ReportErrorf("Backup completed, but %v", err)
return
}
log.Info("Snapshot creation failed", "error", err)
log.Error("Snapshot creation failed", "error", err)
ReportErrorf("Snapshot creation failed: %v", err)
})
},
@@ -138,13 +118,8 @@ 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 "+
"orphaned blobs older than prune_grace_period, and delete each "+
"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)")
"After backup, drop older snapshots of the same name and remove "+
"orphaned blobs")
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) "+
@@ -177,44 +152,6 @@ func newSnapshotListCommand() *cobra.Command {
return cmd
}
// newSnapshotFilesCommand creates the 'snapshot files' subcommand
func newSnapshotFilesCommand() *cobra.Command {
var jsonOutput bool
cmd := &cobra.Command{
Use: "files <snapshot-id> [path]",
Short: "List the files in a snapshot",
Long: `Lists the path, size, mode and modification time of every file in a
snapshot, without restoring it. With a path, lists only that path and
what is under it; a path that matches nothing is an error.
The snapshot may be named by its ID or, on a host with no local index,
by the remote key that 'snapshot list' prints for a remote-only snapshot
(an unambiguous leading part is enough).
The file list is only in the snapshot's encrypted database, so this
downloads and decrypts it, and requires the age private key in the
VAULTIK_AGE_SECRET_KEY environment variable, as 'snapshot restore' does.`,
Args: cobra.RangeArgs(1, filesMaxArgs),
RunE: func(cmd *cobra.Command, args []string) error {
path := ""
if len(args) == filesMaxArgs {
path = args[1]
}
return runVaultikApp(cmd, readOnly, jsonOutput,
"Failed to list snapshot files",
func(v *vaultik.Vaultik) error {
return v.ListSnapshotFiles(args[0], path, jsonOutput)
})
},
}
cmd.Flags().BoolVar(&jsonOutput, "json", false, "Output in JSON format")
return cmd
}
// newSnapshotPurgeCommand creates the 'snapshot purge' subcommand
func newSnapshotPurgeCommand() *cobra.Command {
opts := &vaultik.SnapshotPurgeOptions{}
@@ -301,7 +238,7 @@ func newSnapshotVerifyCommand() *cobra.Command {
return
}
log.Info("Verification failed", "error", err)
log.Error("Verification failed", "error", err)
ReportErrorf("Verification failed: %v", err)
})
},
@@ -327,9 +264,8 @@ 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
'vaultik prune' invocation to run as a follow-up only when it removed the
snapshot's metadata from the destination store, and never under --json.
know about), which is what 'vaultik prune' does. On success the command
prints the exact 'vaultik prune' invocation to run as a follow-up.
An ID that names no snapshot in the local index or on the destination
store is an error.
@@ -338,12 +274,10 @@ 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
must then be in the local index.
If removing the snapshot's metadata from the destination store fails (for
example because the remote is unreachable), the local-database removal
still completes and a warning is emitted; run 'vaultik snapshot remove
<snapshot-id>' again once the destination 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.
If the remote is unreachable, the local-database removal still completes
and a warning is emitted; run 'vaultik snapshot remove <snapshot-id>' again
once the destination store is reachable to remove the snapshot's metadata
from it ('vaultik prune' does not).
To wipe the entire destination store and start over, use 'vaultik remote
nuke --force' — it is the single supported entry point for that.`,
+1 -3
View File
@@ -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
@@ -104,7 +102,7 @@ func runRestore(cmd *cobra.Command, args []string, opts *RestoreOptions) error {
SkipErrors: rootFlags.SkipErrors,
})
}, func(err error) {
log.Info("Restore operation failed", "error", err)
log.Error("Restore operation failed", "error", err)
ReportErrorf("Restore failed: %v", err)
})
}
+1 -1
View File
@@ -38,7 +38,7 @@ func writeVersion(out *ui.Writer) {
_, _ = fmt.Fprintf(w, "vaultik %s\n", globals.Version)
_, _ = fmt.Fprintf(w, " commit: %s\n", globals.Commit)
_, _ = fmt.Fprintf(w, " commit date: %s\n", globals.CommitDate)
_, _ = fmt.Fprintf(w, " build date: %s\n", globals.CommitDate)
_, _ = fmt.Fprintf(w, " go: %s\n", runtime.Version())
_, _ = fmt.Fprintf(w, " os/arch: %s/%s\n", runtime.GOOS, runtime.GOARCH)
_, _ = fmt.Fprintf(w, " author: %s\n", globals.Author)
-37
View File
@@ -2,7 +2,6 @@ package cli_test
import (
"bytes"
"runtime"
"strings"
"testing"
@@ -50,42 +49,6 @@ func TestVersionCommandReportsBuildVersion(t *testing.T) {
}
}
// TestVersionCommandReportLines checks the label, padding and value of
// every line of the report. Commit and CommitDate get different values,
// so a line that prints the wrong one fails.
//
//nolint:paralleltest // sets globals.Commit and globals.CommitDate
func TestVersionCommandReportLines(t *testing.T) {
const (
commit = "abc1234"
commitDate = "2026-11-09"
)
previousCommit, previousCommitDate := globals.Commit, globals.CommitDate
t.Cleanup(func() {
globals.Commit = previousCommit
globals.CommitDate = previousCommitDate
})
globals.Commit = commit
globals.CommitDate = commitDate
want := "vaultik " + globals.Version + "\n" +
" commit: " + commit + "\n" +
" commit date: " + commitDate + "\n" +
" go: " + runtime.Version() + "\n" +
" os/arch: " + runtime.GOOS + "/" + runtime.GOARCH + "\n" +
" author: " + globals.Author + "\n" +
" homepage: " + globals.Homepage + "\n" +
" license: " + globals.License + "\n"
out := runVersionCommand(t)
if !strings.HasPrefix(out, want) {
t.Errorf("report:\n%s\nwant it to start with:\n%s", out, want)
}
}
// TestVersionCommandFlagsDevelopmentBuild is the regression test for
// the thing this command exists to prevent: a build that is not a
// release must say so. The notice used to be gated on the version
+42 -137
View File
@@ -4,15 +4,12 @@
package config
import (
"bytes"
"errors"
"fmt"
"os"
"path/filepath"
"reflect"
"sort"
"strings"
"time"
"filippo.io/age"
"git.eeqj.de/sneak/smartconfig"
@@ -32,16 +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
// 1000-based, as the size parser reads them; the S3 part sizes are S3's own
// limits, which are 1024-based (MiB, GiB).
// Defaults and validation bounds for tunable settings.
const (
defaultBlobSizeLimit = Size(10 * 1000 * 1000 * 1000) // 10GB
defaultChunkSize = Size(10 * 1000 * 1000) // 10MB
defaultBlobSizeLimit = Size(10 * 1024 * 1024 * 1024) // 10GB
defaultChunkSize = Size(10 * 1024 * 1024) // 10MB
defaultS3PartSize = Size(5 * 1024 * 1024) // 5MiB
defaultCompressionLevel = 3
defaultPruneGracePeriod = 24 * time.Hour
minChunkSize = 1000 * 1000 // 1MB
minChunkSize = 1024 * 1024 // 1MB
minCompressionLevel = 1
maxCompressionLevel = 19
// S3 accepts a multipart upload part from 5MiB to 5GiB.
@@ -57,7 +51,7 @@ var (
errRecipientNotX25519 = errors.New(
"not a valid recipient; only X25519 age1... public keys are supported")
errNoSnapshots = errors.New(
"at least one snapshot must be configured (see configs/config.example.yml)")
"at least one snapshot must be configured (see config.example.yml)")
errSnapshotNoPaths = errors.New("snapshot must have at least one path")
errChunkSizeTooSmall = errors.New("chunk_size must be at least 1MB")
errBlobSizeTooSmall = errors.New(
@@ -70,22 +64,12 @@ var (
errFileURLNotAbsolute = errors.New(
"a file:// storage_url needs an absolute path, " +
"as in file:///path/to/backup")
errIndexPathNotAbsolute = errors.New(
"index_path and VAULTIK_INDEX_PATH need an absolute path, " +
"as in ~/.local/share/vaultik/index.sqlite")
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")
errS3BucketRequired = errors.New("s3.bucket is required (or set storage_url)")
)
// Validate returns these when S3 storage is configured without its
// credentials.
var (
ErrS3KeyIDRequired = errors.New("s3.access_key_id is required")
ErrS3SecretRequired = errors.New("s3.secret_access_key is required")
errS3KeyIDRequired = errors.New("s3.access_key_id is required")
errS3SecretRequired = errors.New("s3.secret_access_key is required")
)
// expandTilde expands ~ at the start of a path to the user's home directory.
@@ -200,15 +184,6 @@ 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:
@@ -258,83 +233,24 @@ func New(path Path) (*Config, error) {
return cfg, nil
}
// Load reads the configuration file at path, parses it with Parse, warns
// when others can read the file, and validates the configuration.
// Returns an error if the file cannot be read, parsed, or if validation
// fails.
// Load reads and parses the configuration file from the specified path.
// It applies default values for optional fields, performs environment variable
// substitution using smartconfig, and validates the configuration.
// 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
// refuses a key that no setting has and a size setting whose value is not a
// size, naming the setting. It applies default values for optional
// fields, fills in ${...} references using smartconfig, and expands ~ in
// paths.
func Parse(data []byte) (*Config, error) {
// smartconfig drops line numbers, so keys are checked in the data as
// written.
var root yaml.Node
err := yaml.Unmarshal(data, &root)
if err != nil {
return nil, fmt.Errorf("failed to parse config: %w", err)
}
err = checkKeys(&root, reflect.TypeFor[Config](), "",
map[*yaml.Node]bool{}, map[nodeAndType]bool{})
if err != nil {
return nil, err
}
// 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)
}
// A ${...} reference can bring in keys that are not in the file, and
// is the value of a size setting only once it is filled in.
err = checkFilledConfig(sc.Data())
if err != nil {
return nil, err
}
cfg := &Config{
// Set defaults
BlobSizeLimit: defaultBlobSizeLimit,
ChunkSize: defaultChunkSize,
IndexPath: filepath.Join(xdg.DataHome, appName, "index.sqlite"),
CompressionLevel: defaultCompressionLevel,
PruneGracePeriod: defaultPruneGracePeriod,
S3: S3Config{PartSize: defaultS3PartSize},
}
@@ -386,6 +302,24 @@ 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
}
@@ -396,18 +330,13 @@ func Parse(data []byte) (*Config, error) {
// never the value. An empty list is accepted, because only snapshot
// create needs a recipient and it checks for one itself
// - At least one snapshot must be configured with at least one path
// - Every exclude pattern, global or in a snapshot, must compile; errors
// name the setting and quote the pattern
// - Storage must be configured (either storage_url or s3.* fields)
// - The index path must be absolute: a relative one would resolve against
// the working directory, so each directory would get its own index
// - Chunk size must be at least 1MB
// - Blob size limit must be at least the largest chunk the chunker can emit
// (chunk_size times chunker.ChunkSizeSpread), so a single-chunk blob never
// 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 {
@@ -418,26 +347,22 @@ func (c *Config) Validate() error {
}
}
err := c.validateSnapshots()
if err != nil {
return err
if len(c.Snapshots) == 0 {
return errNoSnapshots
}
err = c.validateExcludes()
if err != nil {
return err
for name, snap := range c.Snapshots {
if len(snap.Paths) == 0 {
return fmt.Errorf("%w: %q", errSnapshotNoPaths, name)
}
}
// Validate storage configuration
err = c.validateStorage()
err := c.validateStorage()
if err != nil {
return err
}
if !filepath.IsAbs(c.IndexPath) {
return fmt.Errorf("%w: %q", errIndexPathNotAbsolute, c.IndexPath)
}
if c.ChunkSize.Int64() < minChunkSize {
return errChunkSizeTooSmall
}
@@ -461,26 +386,6 @@ func (c *Config) Validate() error {
return errBadS3PartSize
}
if c.PruneGracePeriod < 0 {
return errNegativePruneGracePeriod
}
return nil
}
// validateSnapshots refuses a config with no snapshot or with a snapshot
// that has no path.
func (c *Config) validateSnapshots() error {
if len(c.Snapshots) == 0 {
return errNoSnapshots
}
for name, snap := range c.Snapshots {
if len(snap.Paths) == 0 {
return fmt.Errorf("%w: %q", errSnapshotNoPaths, name)
}
}
return nil
}
@@ -547,11 +452,11 @@ func (c *Config) validateStorage() error {
}
if c.S3.AccessKeyID == "" {
return ErrS3KeyIDRequired
return errS3KeyIDRequired
}
if c.S3.SecretAccessKey == "" {
return ErrS3SecretRequired
return errS3SecretRequired
}
return nil
@@ -578,11 +483,11 @@ func (c *Config) validateStorageURL() error {
case strings.HasPrefix(c.StorageURL, "s3://"):
// S3 storage needs credentials
if c.S3.AccessKeyID == "" {
return fmt.Errorf("%w for s3:// URLs", ErrS3KeyIDRequired)
return fmt.Errorf("%w for s3:// URLs", errS3KeyIDRequired)
}
if c.S3.SecretAccessKey == "" {
return fmt.Errorf("%w for s3:// URLs", ErrS3SecretRequired)
return fmt.Errorf("%w for s3:// URLs", errS3SecretRequired)
}
return nil
+3 -208
View File
@@ -6,7 +6,6 @@ import (
"path/filepath"
"strings"
"testing"
"time"
"sneak.berlin/go/vaultik/internal/chunker"
"sneak.berlin/go/vaultik/internal/log"
@@ -90,12 +89,12 @@ func TestConfigLoad(t *testing.T) {
}
// TestExampleConfigIsScrubbedAndLoads checks that the shipped
// configs/config.example.yml carries only neutral placeholders (no real
// credentials, private addresses, or internal host names) and still parses.
// config.example.yml carries only neutral placeholders (no real credentials,
// private addresses, or internal host names) and still parses.
func TestExampleConfigIsScrubbedAndLoads(t *testing.T) {
t.Parallel()
examplePath := filepath.Join("..", "..", "configs", "config.example.yml")
examplePath := filepath.Join("..", "..", "config.example.yml")
cfg, err := Load(examplePath)
if err != nil {
@@ -165,7 +164,6 @@ func TestValidateBlobSizeLimit(t *testing.T) {
AgeRecipients: []string{testSneakAgePublicKey},
Snapshots: map[string]SnapshotConfig{"test": {Paths: []string{"/tmp/src"}}},
StorageURL: "file:///tmp/vaultik-test-store",
IndexPath: "/tmp/vaultik-test-index.sqlite",
ChunkSize: chunkSize,
BlobSizeLimit: blobLimit,
CompressionLevel: 3,
@@ -339,149 +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, configs/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
@@ -511,65 +366,6 @@ func TestLoadRejectsRelativeFileURL(t *testing.T) {
}
}
// TestLoadIndexPath checks that a relative index_path fails at load, naming
// the value. Accepted, it would resolve against the working directory, so a
// backup run from another directory would start from an empty index. A path
// starting with ~ is expanded and loads.
func TestLoadIndexPath(t *testing.T) {
t.Parallel()
home, err := os.UserHomeDir()
if err != nil {
t.Fatalf("home directory: %v", err)
}
load := func(t *testing.T, indexPath string) (*Config, error) {
t.Helper()
data := "snapshots:\n" +
" test:\n" +
" paths: [/tmp/vaultik-test-source]\n" +
"storage_url: file:///tmp/vaultik-test-storage\n" +
"index_path: " + indexPath + "\n"
path := filepath.Join(t.TempDir(), "config.yml")
err := os.WriteFile(path, []byte(data), 0o600)
if err != nil {
t.Fatalf("write config: %v", err)
}
return Load(path)
}
t.Run("relative path is rejected", func(t *testing.T) {
t.Parallel()
_, err := load(t, "relative/index.sqlite")
if !errors.Is(err, errIndexPathNotAbsolute) {
t.Fatalf("Load() error = %v, want errIndexPathNotAbsolute", err)
}
if !strings.Contains(err.Error(), `"relative/index.sqlite"`) {
t.Errorf("error %q does not name the value", err.Error())
}
})
t.Run("path starting with ~ is expanded", func(t *testing.T) {
t.Parallel()
cfg, err := load(t, "~/vaultik/index.sqlite")
if err != nil {
t.Fatalf("Load() unexpected error: %v", err)
}
want := filepath.Join(home, "vaultik", "index.sqlite")
if cfg.IndexPath != want {
t.Errorf("IndexPath = %q, want %q", cfg.IndexPath, want)
}
})
}
// 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
@@ -582,7 +378,6 @@ func TestValidateAgeRecipients(t *testing.T) {
AgeRecipients: recipients,
Snapshots: map[string]SnapshotConfig{"test": {Paths: []string{"/tmp/src"}}},
StorageURL: "file:///tmp/vaultik-test-store",
IndexPath: "/tmp/vaultik-test-index.sqlite",
ChunkSize: Size(10 * 1024 * 1024),
BlobSizeLimit: Size(10 * 1024 * 1024 * 1024),
CompressionLevel: 3,
-39
View File
@@ -1,39 +0,0 @@
package config
import (
"fmt"
"sneak.berlin/go/vaultik/internal/exclude"
)
// validateExcludes refuses an exclude pattern, global or in a snapshot,
// that does not compile, naming the setting and quoting the pattern.
func (c *Config) validateExcludes() error {
err := validateExcludeList("exclude", c.Exclude)
if err != nil {
return err
}
for _, name := range c.SnapshotNames() {
err = validateExcludeList("snapshots."+name+".exclude",
c.Snapshots[name].Exclude)
if err != nil {
return err
}
}
return nil
}
// validateExcludeList refuses the first pattern in patterns that does not
// compile. setting is the name of the list, as in "exclude".
func validateExcludeList(setting string, patterns []string) error {
for i, pattern := range patterns {
_, _, err := exclude.Compile(pattern)
if err != nil {
return fmt.Errorf("%s[%d]: %w", setting, i, err)
}
}
return nil
}
-65
View File
@@ -1,65 +0,0 @@
package config_test
import (
"os"
"path/filepath"
"strings"
"testing"
"sneak.berlin/go/vaultik/internal/config"
)
// TestLoadRefusesBadExcludePattern checks that an exclude pattern that does
// not compile, global or in a snapshot, fails at load with the setting and
// the pattern named, rather than the backup storing what it meant to leave
// out.
func TestLoadRefusesBadExcludePattern(t *testing.T) {
t.Parallel()
const storage = "storage_url: file:///tmp/vaultik-test-storage\n"
tests := []struct {
name string
config string
wantErr string
}{
{
name: "global",
config: "exclude: ['*.tmp', '.cache', 'build[']\n" +
"snapshots:\n" +
" home:\n" +
" paths: [/tmp/vaultik-test-source]\n" + storage,
wantErr: `exclude[2]: "build[" is not a valid exclude pattern`,
},
{
name: "snapshot",
config: "snapshots:\n" +
" home:\n" +
" paths: [/tmp/vaultik-test-source]\n" +
" exclude: ['/a/**/x[']\n" + storage,
wantErr: `snapshots.home.exclude[0]: "/a/**/x[" is not a valid exclude pattern`,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
path := filepath.Join(t.TempDir(), "config.yml")
err := os.WriteFile(path, []byte(tt.config), 0o600)
if err != nil {
t.Fatalf("write config: %v", err)
}
_, err = config.Load(path)
if err == nil {
t.Fatalf("Load() returned nil, want an error containing %q", tt.wantErr)
}
if !strings.Contains(err.Error(), tt.wantErr) {
t.Fatalf("Load() error = %q, want it to contain %q", err, tt.wantErr)
}
})
}
}
-220
View File
@@ -1,220 +0,0 @@
package config
import (
"errors"
"fmt"
"reflect"
"strconv"
"strings"
"gopkg.in/yaml.v3"
)
// yamlMergeTag is the tag YAML gives a merge key (<<), which adds the keys
// of the map it names to the map it sits in.
const yamlMergeTag = "!!merge"
// EnvSection is the top-level key of a map of environment variables that
// smartconfig sets while it loads the config. It is not a vaultik setting,
// so its keys are not checked.
const EnvSection = "env"
var (
errUnknownKey = errors.New("unknown config key")
errAnchorContainsItself = errors.New("anchor contains itself")
)
// nodeAndType is a node of a parsed config and the setting type it is
// checked against.
type nodeAndType struct {
node *yaml.Node
typ reflect.Type
}
// SettingType returns the type of the setting that the dotted key names in
// Config, following the fields' yaml tags, as for s3.bucket or
// snapshots.home.exclude.0. A snapshot name or a list index may be any
// word. It returns an unknown key error when no setting has that key.
func SettingType(keys []string) (reflect.Type, error) {
typ := reflect.TypeFor[Config]()
for _, key := range keys {
switch {
case typ.Kind() == reflect.Map || typ.Kind() == reflect.Slice:
typ = typ.Elem()
case typ.Kind() == reflect.Struct:
field, ok := yamlField(typ, key)
if !ok {
return nil, fmt.Errorf("%w %q", errUnknownKey, strings.Join(keys, "."))
}
typ = field.Type
default:
return nil, fmt.Errorf("%w %q", errUnknownKey, strings.Join(keys, "."))
}
}
return typ, nil
}
// yamlField returns the field of struct type typ whose yaml tag names key.
func yamlField(typ reflect.Type, key string) (reflect.StructField, bool) {
for field := range typ.Fields() {
name, _, _ := strings.Cut(field.Tag.Get("yaml"), ",")
if name == key && name != "-" {
return field, true
}
}
return reflect.StructField{}, false
}
// checkKeys returns an error naming the first key in node, a parsed config
// or part of one at the dotted path, that no setting in typ has. The error
// gives the key's line in the file, when it has one. A value of the wrong
// type is left for the YAML decoder to report. following holds the aliases
// the walk is inside. Meeting one of them again means its anchor contains
// itself, which is an error. checked holds each anchored node the walk has
// checked completely, with the type it was checked against. An alias to
// that node is not followed again for that type.
func checkKeys(node *yaml.Node, typ reflect.Type, path string,
following map[*yaml.Node]bool, checked map[nodeAndType]bool,
) error {
switch node.Kind {
case yaml.DocumentNode:
for _, child := range node.Content {
err := checkKeys(child, typ, path, following, checked)
if err != nil {
return err
}
}
case yaml.AliasNode:
if following[node] {
return fmt.Errorf("%w: %q on line %d",
errAnchorContainsItself, node.Value, node.Line)
}
target := nodeAndType{node.Alias, typ}
if checked[target] {
return nil
}
following[node] = true
defer delete(following, node)
err := checkKeys(node.Alias, typ, path, following, checked)
if err != nil {
return err
}
checked[target] = true
case yaml.SequenceNode:
if typ.Kind() != reflect.Slice {
return nil
}
for i, child := range node.Content {
err := checkKeys(child, typ.Elem(), joinKey(path, strconv.Itoa(i)),
following, checked)
if err != nil {
return err
}
}
case yaml.MappingNode:
return checkMappingKeys(node, typ, path, following, checked)
case yaml.ScalarNode:
// A scalar has no keys.
}
return nil
}
// checkFilledConfig checks data, the config after smartconfig has filled in
// its ${...} references: its keys with checkKeys, then its size settings
// with checkSizes. A key that a reference brings in is not in the file, and
// the copy that Encode makes has no line numbers.
func checkFilledConfig(data map[string]any) error {
var filled yaml.Node
err := filled.Encode(data)
if err != nil {
return fmt.Errorf("failed to marshal config data: %w", err)
}
err = checkKeys(&filled, reflect.TypeFor[Config](), "",
map[*yaml.Node]bool{}, map[nodeAndType]bool{})
if err != nil {
return err
}
return checkSizes(&filled, nil)
}
// checkMappingKeys is checkKeys for a map.
func checkMappingKeys(node *yaml.Node, typ reflect.Type, path string,
following map[*yaml.Node]bool, checked map[nodeAndType]bool,
) error {
for i := 0; i+1 < len(node.Content); i += 2 {
key, value := node.Content[i], node.Content[i+1]
if key.Tag == yamlMergeTag {
// The value is one map or a list of maps.
merged := []*yaml.Node{value}
if value.Kind == yaml.SequenceNode {
merged = value.Content
}
for _, m := range merged {
err := checkKeys(m, typ, path, following, checked)
if err != nil {
return err
}
}
continue
}
keyPath := joinKey(path, key.Value)
if keyPath == EnvSection {
continue
}
var valueType reflect.Type
switch {
case typ.Kind() == reflect.Map:
valueType = typ.Elem()
case typ.Kind() == reflect.Struct:
field, ok := yamlField(typ, key.Value)
if !ok && key.Line == 0 {
// A key that a ${...} reference brought in has no line.
return fmt.Errorf("%w %q", errUnknownKey, keyPath)
}
if !ok {
return fmt.Errorf("%w %q on line %d",
errUnknownKey, keyPath, key.Line)
}
valueType = field.Type
default:
return nil
}
err := checkKeys(value, valueType, keyPath, following, checked)
if err != nil {
return err
}
}
return nil
}
// joinKey appends key to the dotted path.
func joinKey(path, key string) string {
if path == "" {
return key
}
return path + "." + key
}
-163
View File
@@ -1,163 +0,0 @@
package config //nolint:testpackage // checks the unexported errUnknownKey
import (
"errors"
"fmt"
"os"
"path/filepath"
"slices"
"strconv"
"strings"
"testing"
)
// keysTestConfig loads; each case below adds one line to it.
const keysTestConfig = "storage_url: file:///tmp/vaultik-test-storage\n" +
"s3:\n" +
" region: us-east-1\n" +
"snapshots:\n" +
" test:\n" +
" paths: [/tmp/vaultik-test-source]\n"
// TestParseRefusesUnknownKey checks that a key no setting has, at any
// depth, fails the parse with an error naming the key and its line. A key
// that a ${...} reference brings in is not in the file, so its error gives
// no line.
func TestParseRefusesUnknownKey(t *testing.T) {
t.Parallel()
snapshotPath := filepath.Join(t.TempDir(), "snapshot.yml")
err := os.WriteFile(snapshotPath, []byte("other:\n"+
" paths: [/tmp/vaultik-test-source]\n"+
" exlude: [/tmp/cache]\n"), 0o600)
if err != nil {
t.Fatalf("write snapshot: %v", err)
}
tests := []struct {
name string
yaml string
want string
}{
{"top level", keysTestConfig + "compression_lvl: 9\n",
`unknown config key "compression_lvl" on line 7`},
{"in a snapshot", keysTestConfig + " exlude: [/tmp/cache]\n",
`unknown config key "snapshots.test.exlude" on line 7`},
{"in s3", strings.Replace(keysTestConfig, " region:",
" bukcet: b\n region:", 1),
`unknown config key "s3.bukcet" on line 3`},
{"from a reference",
keysTestConfig + " other: ${YAML:" + snapshotPath + ":other}\n",
`unknown config key "snapshots.other.exlude"`},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
_, err := Parse([]byte(tt.yaml))
if !errors.Is(err, errUnknownKey) {
t.Fatalf("Parse() error = %v, want errUnknownKey", err)
}
if err.Error() != tt.want {
t.Errorf("Parse() error = %q, want %q", err.Error(), tt.want)
}
})
}
}
// TestParseRefusesAnchorThatContainsItself checks that a YAML merge key (<<)
// naming the anchor of the map it sits in fails the parse with an error.
func TestParseRefusesAnchorThatContainsItself(t *testing.T) {
t.Parallel()
data := strings.Replace(keysTestConfig, " test:", " test: &test", 1) +
" <<: *test\n"
_, err := Parse([]byte(data))
if !errors.Is(err, errAnchorContainsItself) {
t.Fatalf("Parse() error = %v, want errAnchorContainsItself", err)
}
want := `anchor contains itself: "test" on line 7`
if err.Error() != want {
t.Errorf("Parse() error = %q, want %q", err.Error(), want)
}
}
// TestParseRefusesExcessiveAliasing checks that Parse returns an error for
// a file whose merge keys (<<) fan out. Each of eight snapshots merges the
// one before it ten times. A key check that followed every alias would walk
// the first snapshot over 10^8 times and run past the package's test
// timeout.
func TestParseRefusesExcessiveAliasing(t *testing.T) {
t.Parallel()
const snapshots, merges = 8, 10
var data strings.Builder
data.WriteString(strings.Replace(keysTestConfig, " test:", " test: &s0", 1))
for i := 1; i <= snapshots; i++ {
aliases := slices.Repeat([]string{"*s" + strconv.Itoa(i-1)}, merges)
fmt.Fprintf(&data, " s%d: &s%d\n <<: [%s]\n",
i, i, strings.Join(aliases, ", "))
}
_, err := Parse([]byte(data.String()))
if err == nil {
t.Fatal("Parse() returned no error")
}
}
// TestParseAcceptsKnownKeys checks that a config with a ${...} reference
// and a YAML merge key (<<) still parses.
func TestParseAcceptsKnownKeys(t *testing.T) {
t.Parallel()
levelPath := filepath.Join(t.TempDir(), "level")
err := os.WriteFile(levelPath, []byte("9"), 0o600)
if err != nil {
t.Fatalf("write level: %v", err)
}
data := strings.Replace(keysTestConfig, " test:", " test: &test", 1) +
" other:\n" +
" <<: *test\n" +
" exclude: [/tmp/vaultik-test-source/cache]\n" +
"compression_level: ${FILE:" + levelPath + "}\n"
cfg, err := Parse([]byte(data))
if err != nil {
t.Fatalf("Parse() unexpected error: %v", err)
}
if cfg.CompressionLevel != 9 {
t.Errorf("compression_level = %d, want 9", cfg.CompressionLevel)
}
other := cfg.Snapshots["other"]
if len(other.Paths) != 1 || len(other.Exclude) != 1 {
t.Errorf("snapshot other = %+v, want the paths of test and one exclude",
other)
}
}
// TestParseAcceptsEnvSection checks that a config with a top-level env
// section still parses. smartconfig sets the environment variables it
// lists, so its keys are not settings.
func TestParseAcceptsEnvSection(t *testing.T) {
const name = "VAULTIK_TEST_ENV_SECTION"
// Parse sets the variable; t.Setenv restores it after the test.
t.Setenv(name, "")
_, err := Parse([]byte(keysTestConfig + "env:\n " + name + ": set\n"))
if err != nil {
t.Fatalf("Parse() unexpected error: %v", err)
}
}
+11 -77
View File
@@ -4,20 +4,13 @@ import (
"errors"
"fmt"
"math"
"reflect"
"slices"
"strconv"
"strings"
"github.com/dustin/go-humanize"
"gopkg.in/yaml.v3"
)
var (
errSizeType = errors.New("size must be a number or string")
errSizeTooLarge = errors.New("size exceeds maximum supported value")
errNotASize = errors.New(
"is not a size; use a number of bytes or a unit such as 10MB")
)
// Size represents a byte size that can be specified in configuration files.
@@ -39,15 +32,6 @@ func (s *Size) UnmarshalYAML(unmarshal func(any) error) error {
return nil
}
// A number too large for an int64 decodes as a float64. Its text can be
// 1e+20, which is not a size string.
var floatVal float64
err = unmarshal(&floatVal)
if err == nil && floatVal > math.MaxInt64 {
return errSizeTooLarge
}
// Try to unmarshal as string
var strVal string
@@ -56,66 +40,17 @@ func (s *Size) UnmarshalYAML(unmarshal func(any) error) error {
return errSizeType
}
size, err := ParseSize(strVal)
// Parse the string using go-humanize
bytes, err := humanize.ParseBytes(strVal)
if err != nil {
return err
return fmt.Errorf("invalid size format: %w", err)
}
*s = size
return nil
}
// checkSizes returns an error naming the first size setting in node whose
// value is not a size. node is the config, or the part of it at the dotted
// keys, after smartconfig has filled in its ${...} references.
func checkSizes(node *yaml.Node, keys []string) error {
typ, err := SettingType(keys)
if err != nil {
// Unknown keys are refused before this check, so keys is in one of
// two places. The env section holds no settings. A value of the
// wrong shape, such as a map given for hostname or inside exclude,
// is reported later by the YAML decoder.
return nil //nolint:nilerr // not an error here
if bytes > math.MaxInt64 {
return fmt.Errorf("%w: %s", errSizeTooLarge, strVal)
}
if typ == reflect.TypeFor[Size]() {
var size Size
err = node.Decode(&size)
if err != nil {
return fmt.Errorf("%s: %w", strings.Join(keys, "."), err)
}
return nil
}
switch node.Kind {
case yaml.DocumentNode:
for _, child := range node.Content {
err = checkSizes(child, keys)
if err != nil {
return err
}
}
case yaml.MappingNode:
for i := 0; i+1 < len(node.Content); i += 2 {
err = checkSizes(node.Content[i+1],
slices.Concat(keys, []string{node.Content[i].Value}))
if err != nil {
return err
}
}
case yaml.SequenceNode:
for i, child := range node.Content {
err = checkSizes(child, slices.Concat(keys, []string{strconv.Itoa(i)}))
if err != nil {
return err
}
}
case yaml.ScalarNode, yaml.AliasNode:
// A scalar holds no settings, and the filled config has no aliases.
}
*s = Size(bytes)
return nil
}
@@ -135,17 +70,16 @@ func (s Size) String() string {
return humanize.Bytes(uint64(s))
}
// ParseSize parses a size string, such as "10MB", into a Size value. An
// error quotes s.
// ParseSize parses a size string into a Size value
func ParseSize(s string) (Size, error) {
bytes, err := humanize.ParseBigBytes(s)
bytes, err := humanize.ParseBytes(s)
if err != nil {
return 0, fmt.Errorf("%q %w", s, errNotASize)
return 0, fmt.Errorf("invalid size format: %w", err)
}
if !bytes.IsInt64() {
if bytes > math.MaxInt64 {
return 0, fmt.Errorf("%w: %s", errSizeTooLarge, s)
}
return Size(bytes.Int64()), nil
return Size(bytes), nil
}
-120
View File
@@ -1,120 +0,0 @@
package config //nolint:testpackage // checks errNotASize and errSizeTooLarge
import (
"errors"
"os"
"path/filepath"
"strings"
"testing"
)
// TestParseRefusesValueThatIsNotASize checks that a size setting whose
// value is not a size fails the parse with an error naming the setting and
// quoting the value, also when a ${...} reference fills the value in.
func TestParseRefusesValueThatIsNotASize(t *testing.T) {
t.Parallel()
sizePath := filepath.Join(t.TempDir(), "size")
err := os.WriteFile(sizePath, []byte("lots"), 0o600)
if err != nil {
t.Fatalf("write size: %v", err)
}
tests := []struct {
name string
yaml string
want string
}{
{"chunk_size", keysTestConfig + "chunk_size: banana\n",
`chunk_size: "banana" is not a size; ` +
"use a number of bytes or a unit such as 10MB"},
{"blob_size_limit", keysTestConfig + "blob_size_limit: 10XB\n",
`blob_size_limit: "10XB" is not a size; ` +
"use a number of bytes or a unit such as 10MB"},
{"s3.part_size", strings.Replace(keysTestConfig, " region:",
" part_size: big\n region:", 1),
`s3.part_size: "big" is not a size; ` +
"use a number of bytes or a unit such as 10MB"},
{"from a reference",
keysTestConfig + "chunk_size: ${FILE:" + sizePath + "}\n",
`chunk_size: "lots" is not a size; ` +
"use a number of bytes or a unit such as 10MB"},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
_, err := Parse([]byte(tt.yaml))
if !errors.Is(err, errNotASize) {
t.Fatalf("Parse() error = %v, want errNotASize", err)
}
if err.Error() != tt.want {
t.Errorf("Parse() error = %q, want %q", err.Error(), tt.want)
}
})
}
}
// TestParseRefusesSizeTooLarge checks that a size setting whose value is
// too large for a size fails the parse with an error naming the setting.
// YAML reads the second value as a float.
func TestParseRefusesSizeTooLarge(t *testing.T) {
t.Parallel()
tests := []struct {
value string
want string
}{
{"100EB", "chunk_size: size exceeds maximum supported value: 100EB"},
{"99999999999999999999",
"chunk_size: size exceeds maximum supported value"},
}
for _, tt := range tests {
t.Run(tt.value, func(t *testing.T) {
t.Parallel()
_, err := Parse([]byte(keysTestConfig + "chunk_size: " + tt.value + "\n"))
if !errors.Is(err, errSizeTooLarge) {
t.Fatalf("Parse() error = %v, want errSizeTooLarge", err)
}
if err.Error() != tt.want {
t.Errorf("Parse() error = %q, want %q", err.Error(), tt.want)
}
})
}
}
// TestParseAcceptsSizes checks that size settings given as a number of
// bytes, as a unit, and through a ${...} reference still parse.
func TestParseAcceptsSizes(t *testing.T) {
t.Parallel()
sizePath := filepath.Join(t.TempDir(), "size")
err := os.WriteFile(sizePath, []byte("20MB"), 0o600)
if err != nil {
t.Fatalf("write size: %v", err)
}
data := strings.Replace(keysTestConfig, " region:",
" part_size: 6000000\n region:", 1) +
"chunk_size: ${FILE:" + sizePath + "}\n" +
"blob_size_limit: 1GB\n"
cfg, err := Parse([]byte(data))
if err != nil {
t.Fatalf("Parse() unexpected error: %v", err)
}
if cfg.ChunkSize != 20_000_000 || cfg.BlobSizeLimit != 1_000_000_000 ||
cfg.S3.PartSize != 6_000_000 {
t.Errorf("chunk_size, blob_size_limit, s3.part_size = %d, %d, %d, "+
"want 20000000, 1000000000, 6000000",
cfg.ChunkSize, cfg.BlobSizeLimit, cfg.S3.PartSize)
}
}
+6 -1
View File
@@ -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
+11 -9
View File
@@ -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
// 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.
// UpdateUploaded marks a blob as uploaded
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 {
+2 -6
View File
@@ -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
err = repo.UpdateUploaded(ctx, nil, blob.ID.String(), 600)
// Test UpdateUploaded
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) {
+18 -3
View File
@@ -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)
}
+12 -2
View File
@@ -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
+6 -1
View File
@@ -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
+10 -11
View File
@@ -219,8 +219,7 @@ func retryOpen(ctx context.Context, path string) (*DB, error) {
// errUntrustedSnapshotSchema is returned when a downloaded snapshot
// database carries schema objects the real schema never defines, or is
// missing a table the restore, deep-verify and `snapshot files` queries
// read.
// missing a table the restore and deep-verify queries read.
var errUntrustedSnapshotSchema = errors.New(
"downloaded snapshot database has an untrusted schema")
@@ -242,12 +241,12 @@ func snapshotReadOnlyDSN(path string) string {
// OpenReadOnly opens an already-materialized SQLite file for read-only
// querying of a snapshot database downloaded from the store, used by
// restore, deep verify and `snapshot files`. Unlike New it never applies
// schema migrations and never writes: the connection is opened read-only
// with query_only and trusted_schema=OFF. It refuses any file whose schema
// carries a trigger, view or virtual table, or lacks an expected table, so
// a forged file cannot redefine what the restore queries return. The
// caller owns the file and must remove it.
// restore and deep verify. Unlike New it never applies schema migrations
// and never writes: the connection is opened read-only with query_only
// and trusted_schema=OFF. It refuses any file whose schema carries a
// trigger, view or virtual table, or lacks an expected table, so a forged
// file cannot redefine what the restore queries return. The caller owns
// the file and must remove it.
func OpenReadOnly(ctx context.Context, path string) (*DB, error) {
conn, err := sql.Open("sqlite", snapshotReadOnlyDSN(path))
if err != nil {
@@ -277,9 +276,9 @@ func OpenReadOnly(ctx context.Context, path string) (*DB, error) {
// the plain table set the real schema defines. Any trigger, view or
// virtual table, or a missing expected table, fails the open.
func verifySnapshotSchema(ctx context.Context, conn *sql.DB) error {
// expectedSnapshotTables are the tables the restore, deep-verify and
// `snapshot files` queries read. A downloaded database missing any of
// them is not a genuine snapshot database and is refused.
// expectedSnapshotTables are the tables the restore and deep-verify
// queries read. A downloaded database missing any of them is not a
// genuine snapshot database and is refused.
expectedSnapshotTables := []string{
"blob_chunks",
"blobs",
+12
View File
@@ -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)
}
+18 -3
View File
@@ -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))
+22 -41
View File
@@ -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() }()
var files []*File
for rows.Next() {
file, err := r.scanFileRows(rows)
defer func() {
err := rows.Close()
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
-59
View File
@@ -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()
-11
View File
@@ -20,17 +20,6 @@ const indexDirPerm = 0o700
// backed-up path and chunk hash and must stay private.
const indexFilePerm = 0o600
// IndexFiles returns the path of the index at indexPath and the paths of
// the side files SQLite keeps beside it while it writes.
func IndexFiles(indexPath string) []string {
return []string{
indexPath,
indexPath + "-wal",
indexPath + "-shm",
indexPath + "-journal",
}
}
// ensureIndexFileMode makes the index file owner-only before the SQLite
// driver opens it: it creates the file 0600 if absent, or chmods an existing
// one to 0600. Doing this first matters because SQLite creates its -wal and
+18 -23
View File
@@ -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
// is dropped.
_ = tx.Rollback()
rollbackErr := tx.Rollback()
if rollbackErr != nil {
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
// is dropped.
_ = tx.Rollback()
rollbackErr := tx.Rollback()
if rollbackErr != nil {
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
}
-158
View File
@@ -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)
}
}
-11
View File
@@ -89,7 +89,6 @@ CREATE TABLE IF NOT EXISTS snapshots (
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 +122,6 @@ 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,
+60 -101
View File
@@ -24,8 +24,7 @@ var (
)
// SnapshotRepository provides access to the snapshots table and its
// snapshot_files / snapshot_blobs association tables, and to the mount
// points each snapshot's backup found (snapshot_mount_points).
// snapshot_files / snapshot_blobs association tables.
type SnapshotRepository struct {
db *DB
}
@@ -121,11 +120,7 @@ func (r *SnapshotRepository) UpdateCounts(
return nil
}
// UpdateExtendedStats updates extended statistics for a snapshot. It also
// 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.
// UpdateExtendedStats updates extended statistics for a snapshot
func (r *SnapshotRepository) UpdateExtendedStats(
ctx context.Context,
tx *sql.Tx,
@@ -150,17 +145,7 @@ func (r *SnapshotRepository) UpdateExtendedStats(
compression_level = ?,
upload_bytes = ?,
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
)
new_chunk_size = ?
WHERE id = ?
`
@@ -238,11 +223,10 @@ func (r *SnapshotRepository) GetByID(
// GetOnlySnapshot returns the sole snapshot in an exported per-snapshot
// metadata database. The backup path writes each snapshot's database with
// exactly one snapshot row (see cleanSnapshotDB), so restore, deep verify
// and `snapshot files` expect exactly one. Zero rows return
// ErrNoSnapshotInDatabase and more than one returns
// ErrMultipleSnapshotsInDatabase; callers treat either as a failed
// identity check on the downloaded database.
// exactly one snapshot row (see cleanSnapshotDB), so restore and deep
// verify expect exactly one. Zero rows return ErrNoSnapshotInDatabase and
// more than one returns ErrMultipleSnapshotsInDatabase; callers treat
// either as a failed identity check on the downloaded database.
func (r *SnapshotRepository) GetOnlySnapshot(ctx context.Context) (*Snapshot, error) {
query := `
SELECT id, hostname, vaultik_version, vaultik_git_revision,
@@ -257,7 +241,12 @@ 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 {
@@ -292,7 +281,12 @@ 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)
}
@@ -502,57 +496,32 @@ 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
}
// AddMountPoint records dir as a directory that the backup of a snapshot
// 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
if tx != nil {
_, err = tx.ExecContext(ctx, query, snapshotID, dir)
} else {
_, err = r.db.ExecWithLog(ctx, query, snapshotID, dir)
}
defer func() {
err := rows.Close()
if err != nil {
return fmt.Errorf("adding mount point to snapshot: %w", err)
Fatalf("failed to close rows: %v", err)
}
}()
return nil
}
var blobs []string
// 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
`
for rows.Next() {
var blobHash string
dirs, err := r.queryStrings(ctx, query, snapshotID)
err := rows.Scan(&blobHash)
if err != nil {
return nil, fmt.Errorf("querying mount points: %w", err)
return nil, fmt.Errorf("scanning blob hash: %w", err)
}
return dirs, nil
blobs = append(blobs, blobHash)
}
return blobs, rows.Err()
}
// GetSnapshotTotalCompressedSize returns the total compressed size of all
@@ -601,22 +570,30 @@ func (r *SnapshotRepository) GetSnapshotBlobSizes(
return compressed, uncompressed, nil
}
// GetSnapshotUncompressedChunkSize returns the total plaintext size of the
// distinct chunks the snapshot's files reference, as the snapshot's backup
// recorded it (see UpdateExtendedStats).
// GetSnapshotUncompressedChunkSize returns the sum of plaintext sizes of all unique
// chunks referenced by a snapshot (via snapshot_files → file_chunks → chunks).
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
@@ -657,7 +634,12 @@ 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)
}
@@ -680,7 +662,12 @@ 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.
@@ -741,34 +728,6 @@ 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.
-50
View File
@@ -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)
}
}
}
-77
View File
@@ -1,77 +0,0 @@
// Package exclude compiles exclude patterns into globs.
package exclude
import (
"errors"
"fmt"
"strings"
"github.com/gobwas/glob"
)
var errBadExcludePattern = errors.New("is not a valid exclude pattern")
// Compile compiles one exclude pattern into the globs that match it.
// anchored reports whether the pattern matches only from the root of the
// source directory. An empty pattern yields no globs. Config.Validate and
// the scanner both compile patterns with it, so a pattern that loads is one
// the scanner can use.
func Compile(pattern string) ([]glob.Glob, bool, error) {
if pattern == "" {
return nil, false, nil
}
// A leading "/" anchors the pattern to the source directory.
trimmed, anchored := strings.CutPrefix(pattern, "/")
// A trailing "/" marks a directory and is not matched.
trimmed = strings.TrimSuffix(trimmed, "/")
// A leading "**/" demands a "/" before the name and so misses an
// entry directly under the source path. It means "at every depth",
// which is what an unanchored pattern already does, so drop the
// prefix and match unanchored: as in gitignore, "**/x" and
// "/**/x" then also match a top-level "x".
if rest, found := strings.CutPrefix(trimmed, "**/"); found {
trimmed = rest
anchored = false
}
// Likewise "/**/" inside a pattern demands two slashes, so
// "a/**/*.log" misses "a/x.log". As in gitignore it stands for
// zero or more directories, so also compile the pattern with it
// made a single "/". The glob library's {a,b} is no help: with a
// "**" inside it in mid-pattern, it misses paths it should match.
var globs []glob.Glob
for _, variant := range doubleStarVariants(trimmed) {
g, err := glob.Compile(variant, '/')
if err != nil {
return nil, false, fmt.Errorf("%q %w: %w",
pattern, errBadExcludePattern, err)
}
globs = append(globs, g)
}
return globs, anchored, nil
}
// doubleStarVariants returns pattern once for every way of keeping each
// "/**/" in it or making it a single "/".
func doubleStarVariants(pattern string) []string {
const doubleStar = "/**/"
before, after, found := strings.Cut(pattern, doubleStar)
if !found {
return []string{pattern}
}
var variants []string
for _, rest := range doubleStarVariants(after) {
variants = append(variants, before+doubleStar+rest, before+"/"+rest)
}
return variants
}
-73
View File
@@ -1,73 +0,0 @@
package exclude_test
import (
"slices"
"strings"
"testing"
"github.com/gobwas/glob"
"sneak.berlin/go/vaultik/internal/exclude"
)
// TestCompile checks the error, the anchoring and the globs that Compile
// returns for one exclude pattern.
func TestCompile(t *testing.T) {
t.Parallel()
tests := []struct {
name string
pattern string
wantErr string
wantAnchored bool
// wantMatches lists paths that one of the globs must match. When
// it is empty, Compile must return no globs.
wantMatches []string
}{
{name: "does not compile", pattern: "build[",
wantErr: `"build[" is not a valid exclude pattern`},
{name: "empty", pattern: ""},
{name: "leading slash anchors", pattern: "/build",
wantAnchored: true, wantMatches: []string{"build"}},
{name: "double star after the slash clears anchoring",
pattern: "/**/build", wantMatches: []string{"build"}},
{name: "double star in the middle", pattern: "a/**/*.log",
wantMatches: []string{"a/x.log", "a/b/x.log"}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
globs, anchored, err := exclude.Compile(tt.pattern)
if tt.wantErr == "" && err != nil {
t.Fatalf("Compile(%q) error = %v, want none", tt.pattern, err)
}
if tt.wantErr != "" &&
(err == nil || !strings.HasPrefix(err.Error(), tt.wantErr)) {
t.Fatalf("Compile(%q) error = %v, want one starting with %q",
tt.pattern, err, tt.wantErr)
}
if anchored != tt.wantAnchored {
t.Errorf("Compile(%q) anchored = %t, want %t",
tt.pattern, anchored, tt.wantAnchored)
}
if len(tt.wantMatches) == 0 && len(globs) != 0 {
t.Errorf("Compile(%q) returned %d globs, want none",
tt.pattern, len(globs))
}
for _, path := range tt.wantMatches {
matched := slices.ContainsFunc(globs, func(g glob.Glob) bool {
return g.Match(path)
})
if !matched {
t.Errorf("Compile(%q) globs do not match %q",
tt.pattern, path)
}
}
})
}
}
+6 -62
View File
@@ -1,24 +1,19 @@
// Package globals holds application-wide metadata (name, version,
// commit) that is populated at build time via linker flags, or from the
// build info Go records in the binary when the linker flags set none.
// commit) that is populated at build time via linker flags.
package globals
import (
"regexp"
"runtime/debug"
"strings"
"time"
"golang.org/x/mod/module"
)
// Appname is the application name, populated from main().
var Appname = "vaultik" //nolint:gochecknoglobals // set via -ldflags at build time
// DevVersion is the version a binary reports when it was built without
// git metadata: script/version emits it outside a git checkout, and a
// binary keeps it when neither its linker flags nor its Go build info
// name a version. goreleaser's snapshot template stamps
// git metadata: script/version emits it outside a git checkout, and an
// unstamped `go build` keeps it. goreleaser's snapshot template stamps
// it followed by "-" and the commit it was built from. It is
// deliberately not a number.
const DevVersion = "dev"
@@ -37,54 +32,6 @@ var Commit = Unknown //nolint:gochecknoglobals // set via -ldflags at build time
// CommitDate is the ISO-8601 date of the commit, populated from main().
var CommitDate = Unknown //nolint:gochecknoglobals // set via -ldflags at build time
// develVersion is the main module version Go records when it cannot
// tell which version it built.
const develVersion = "(devel)"
// FillUnsetFromBuildInfo applies FillUnset to Version, Commit and
// CommitDate, with the build info of the running binary.
func FillUnsetFromBuildInfo() {
info, ok := debug.ReadBuildInfo()
if !ok {
return
}
Version, Commit, CommitDate = FillUnset(
info, Version, Commit, CommitDate)
}
// FillUnset returns version, commit and commitDate. Each one that
// still holds its default ("dev" or empty for the version, "unknown"
// for the others) is replaced by the value Go recorded in info. A
// `go install` of a tag sets no linker flags, but Go records the tag
// as the main module's version. Go records the commit and its time
// only when it builds from a git checkout. The time is cut to a date,
// as the Makefile stamps it.
func FillUnset(
info *debug.BuildInfo, version, commit, commitDate string,
) (string, string, string) {
if (version == "" || version == DevVersion) &&
info.Main.Version != "" && info.Main.Version != develVersion {
version = info.Main.Version
}
for _, s := range info.Settings {
switch s.Key {
case "vcs.revision":
if commit == Unknown {
commit = s.Value
}
case "vcs.time":
t, err := time.Parse(time.RFC3339, s.Value)
if commitDate == Unknown && err == nil {
commitDate = t.UTC().Format(time.DateOnly)
}
}
}
return version, commit, commitDate
}
// Author identifies the upstream author of vaultik.
const Author = "Jeffrey Paul <sneak@sneak.berlin>"
@@ -121,10 +68,8 @@ func New() (*Globals, error) {
// a release. "dev" and goreleaser's snapshot "dev-<sha>" count, and so
// does what `git describe --tags --always --dirty` gives a make or
// docker build of an untagged commit: the bare short commit, or
// tag-N-gHASH on a commit after a tag. A Go pseudo-version counts: Go
// records one for a build of an untagged commit without linker flags.
// Any version ending in "-dirty" or "+dirty" counts, a modified
// checkout of a tag ("v1.0.0-dirty", "v1.0.0+dirty") included.
// tag-N-gHASH on a commit after a tag. Any version ending in "-dirty"
// counts, a modified checkout of a tag ("v1.0.0-dirty") included.
// A plain tag such as "v1.0.0" or "1.0.0" is a release.
//
// The empty string counts too. Nothing that knows its version reports
@@ -137,8 +82,7 @@ func New() (*Globals, error) {
func IsDevVersion(v string) bool {
if v == "" || v == Unknown || v == DevVersion ||
strings.HasPrefix(v, DevVersion+"-") ||
strings.HasSuffix(v, "-dirty") || strings.HasSuffix(v, "+dirty") ||
module.IsPseudoVersion(v) {
strings.HasSuffix(v, "-dirty") {
return true
}
+4 -113
View File
@@ -1,7 +1,6 @@
package globals_test
import (
"runtime/debug"
"testing"
"sneak.berlin/go/vaultik/internal/globals"
@@ -60,20 +59,12 @@ func TestIsDevVersion(t *testing.T) {
{"1.0.0-rc.1-12-g877eb2f", true},
// A tagged commit with uncommitted changes is not that tag.
{"v1.0.0-dirty", true},
// What Go records for a build without linker flags: a
// pseudo-version for an untagged commit, "+dirty" for a
// modified checkout.
{"v1.0.0-rc3.0.20261111001226-abcdefabcdef", true},
{"v0.0.0-20261111001226-abcdefabcdef", true},
{"v1.0.1-0.20261111001226-abcdefabcdef", true},
{"v1.0.0+dirty", true},
// What a tagged build produces (goreleaser's .Version strips
// the leading "v"; script/version keeps it).
{"1.0.0", false},
{"0.1.0", false},
{"1.0.0-rc.1", false},
{"v1.0.0", false},
{"v1.0.0-rc3", false},
// A release must not be mistaken for a dev build just because
// the string happens to contain "dev".
{"1.0.0-dev", false},
@@ -95,9 +86,10 @@ func TestIsDevVersion(t *testing.T) {
}
}
// TestDefaultVersionIsDev pins the default: a binary whose linker flags
// and build info name no version must report itself as a development
// build rather than as some default release number.
// TestDefaultVersionIsDev pins the linker-flag contract: an unstamped
// binary (no -ldflags at all, which is what `go build ./...` and `go
// install` produce) must report itself as a development build rather
// than as some default release number.
func TestDefaultVersionIsDev(t *testing.T) {
t.Parallel()
@@ -106,104 +98,3 @@ func TestDefaultVersionIsDev(t *testing.T) {
globals.DevVersion)
}
}
// buildInfo returns build info with the given main module version and,
// when revision is not empty, the commit settings Go records for a
// build from a git checkout.
func buildInfo(version, revision string) *debug.BuildInfo {
info := &debug.BuildInfo{
Main: debug.Module{Path: "sneak.berlin/go/vaultik", Version: version},
}
if revision != "" {
info.Settings = []debug.BuildSetting{
{Key: "vcs.revision", Value: revision},
{Key: "vcs.time", Value: "2026-11-10T23:12:26Z"},
}
}
return info
}
// TestFillUnset covers a binary from `go install` of a tag, which
// carries no linker flags: it must report the tag. Values the linker
// flags set are kept.
func TestFillUnset(t *testing.T) {
t.Parallel()
const (
tag = "v1.0.0-rc3"
rev = "0123456789abcdef0123456789abcdef01234567"
)
cases := []struct {
name string
info *debug.BuildInfo
version, commit, date string
wantVersion, wantCommit string
wantDate string
}{
{
name: "go install of a tag",
info: buildInfo(tag, ""),
version: globals.DevVersion,
commit: globals.Unknown,
date: globals.Unknown,
wantVersion: tag,
wantCommit: globals.Unknown,
wantDate: globals.Unknown,
},
{
name: "empty version",
info: buildInfo(tag, ""),
version: "",
commit: globals.Unknown,
date: globals.Unknown,
wantVersion: tag,
wantCommit: globals.Unknown,
wantDate: globals.Unknown,
},
{
name: "go build in a git checkout",
info: buildInfo(tag, rev),
version: globals.DevVersion,
commit: globals.Unknown,
date: globals.Unknown,
wantVersion: tag,
wantCommit: rev,
wantDate: "2026-11-10",
},
{
name: "Go could not tell the version",
info: buildInfo("(devel)", ""),
version: globals.DevVersion,
commit: globals.Unknown,
date: globals.Unknown,
wantVersion: globals.DevVersion,
wantCommit: globals.Unknown,
wantDate: globals.Unknown,
},
{
name: "linker flags set",
info: buildInfo(tag, rev),
version: "v1.0.0-rc2-4-gabcdef1",
commit: "abcdef1",
date: "2026-11-01",
wantVersion: "v1.0.0-rc2-4-gabcdef1",
wantCommit: "abcdef1",
wantDate: "2026-11-01",
},
}
for _, tc := range cases {
version, commit, date := globals.FillUnset(
tc.info, tc.version, tc.commit, tc.date)
if version != tc.wantVersion || commit != tc.wantCommit ||
date != tc.wantDate {
t.Errorf("%s: got %q, %q, %q; want %q, %q, %q", tc.name,
version, commit, date,
tc.wantVersion, tc.wantCommit, tc.wantDate)
}
}
}
+10 -7
View File
@@ -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
// prints one. humanize.Bytes takes no negative count, so one is printed
// as it is.
// formatBytes formats bytes in a human-readable way
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])
}
+4 -5
View File
@@ -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 oneMegabyte = 1_000_000
const oneAndAHalfKiB = 1536
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")
})
}
+1 -14
View File
@@ -11,7 +11,6 @@ import (
"strconv"
"strings"
"github.com/adrg/xdg"
"golang.org/x/sys/unix"
)
@@ -30,20 +29,8 @@ const (
lockDirPerm = 0o700
// pidFilePerm is the mode for the PID file (owner-only).
pidFilePerm = 0o600
// pidFileName is the name of the PID file in the lock directory.
pidFileName = "vaultik.pid"
)
// Dir returns the directory that holds vaultik's PID file.
func Dir() string {
return filepath.Join(xdg.DataHome, "vaultik")
}
// Path returns the path of the PID file that Acquire uses in lockDir.
func Path(lockDir string) string {
return filepath.Join(lockDir, pidFileName)
}
// Acquire attempts to acquire a PID lock in the specified directory.
// If another process holds the lock, it returns ErrAlreadyRunning with
// that process's PID. On success, it writes the current PID to the lock
@@ -55,7 +42,7 @@ func Acquire(lockDir string) (*Lock, error) {
return nil, fmt.Errorf("creating lock directory: %w", err)
}
lockPath := Path(lockDir)
lockPath := filepath.Join(lockDir, "vaultik.pid")
// No O_TRUNC: the file may hold the PID of the process that has the
// lock, which the error below reports.
+2 -34
View File
@@ -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.
@@ -303,9 +275,6 @@ func IsNotFound(err error) bool {
type ObjectInfo struct {
Key string
Size int64
// ModTime is the object's LastModified time. Only ListObjectsStream
// sets it.
ModTime time.Time
Err error
}
@@ -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}
@@ -349,7 +318,6 @@ func (c *Client) ListObjectsStream(
ch <- ObjectInfo{
Key: key,
Size: *obj.Size,
ModTime: aws.ToTime(obj.LastModified),
}
}
}
-62
View File
@@ -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)
}
})
}
}
-40
View File
@@ -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"))
}
-51
View File
@@ -578,54 +578,3 @@ func TestExcludePatterns_DoubleStarFileAtEveryDepth(t *testing.T) {
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")
}
@@ -1,65 +0,0 @@
package snapshot_test
import (
"context"
"testing"
"github.com/spf13/afero"
"github.com/stretchr/testify/require"
"sneak.berlin/go/vaultik/internal/database"
"sneak.berlin/go/vaultik/internal/snapshot"
)
// A backup of the directory that holds vaultik's index and PID file
// stores neither, with no exclude pattern set, and still stores the
// files beside them. See https://git.eeqj.de/sneak/vaultik/issues/421.
func TestScanSkipsIndexAndLockFiles(t *testing.T) {
t.Parallel()
const dataDir = "/home/user/.local/share/vaultik"
indexAndLockFiles := append(database.IndexFiles(dataDir+"/index.sqlite"),
dataDir+"/vaultik.pid")
fs := afero.NewMemMapFs()
for _, p := range append(indexAndLockFiles, dataDir+"/notes.txt") {
require.NoError(t, afero.WriteFile(fs, p, []byte("data"), 0o600))
}
db, err := database.NewTestDB()
require.NoError(t, err)
defer func() { _ = db.Close() }()
repos := database.NewRepositories(db)
scanner := snapshot.NewScanner(snapshot.ScannerConfig{
FS: fs,
ChunkSize: 64 * 1024,
Repositories: repos,
MaxBlobSize: 1024 * 1024,
CompressionLevel: 3,
AgeRecipients: []string{
"age1ql3z7hjy54pw3hyww5ayyfg7zqgvc7w3j2elw8zmrj2kg5sfn9aqmcac8p"},
IndexAndLockFiles: indexAndLockFiles,
})
require.NotNil(t, scanner)
ctx := context.Background()
createSnapshotRecord(ctx, t, repos, "test-snapshot")
result, err := scanner.Scan(ctx, "/home/user", "test-snapshot")
require.NoError(t, err)
require.Equal(t, 1, result.FilesScanned)
stored, err := repos.Files.GetByPath(ctx, dataDir+"/notes.txt")
require.NoError(t, err)
require.NotNil(t, stored, "a file beside the index is stored")
for _, p := range indexAndLockFiles {
f, err := repos.Files.GetByPath(ctx, p)
require.NoError(t, err)
require.Nil(t, f, "%s is not stored", p)
}
}
-55
View File
@@ -1,14 +1,10 @@
package snapshot
import (
"os"
"path/filepath"
"github.com/spf13/afero"
"go.uber.org/fx"
"sneak.berlin/go/vaultik/internal/config"
"sneak.berlin/go/vaultik/internal/database"
"sneak.berlin/go/vaultik/internal/pidlock"
"sneak.berlin/go/vaultik/internal/storage"
"sneak.berlin/go/vaultik/internal/ui"
)
@@ -20,12 +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.
@@ -64,52 +54,7 @@ func provideScannerFactory(
EnableProgress: params.EnableProgress,
UI: params.UI,
Exclude: excludes,
IndexAndLockFiles: indexAndLockFiles(cfg.IndexPath, pidlock.Dir()),
SkipErrors: params.SkipErrors,
PreviousSnapshotID: params.PreviousSnapshotID,
DeviceNumber: params.DeviceNumber,
})
}
}
// indexAndLockFiles returns the paths of the index at indexPath, its side
// files and the PID file in lockDir. Symlinks in their directories are
// resolved, as they are in the snapshot's source paths, so the scan finds
// them under the same names. If indexPath is a symlink, the file it points
// to and that file's side files are returned too.
func indexAndLockFiles(indexPath, lockDir string) []string {
paths := append(database.IndexFiles(indexPath), pidlock.Path(lockDir))
for i, p := range paths {
paths[i] = resolveParentDir(p)
}
// SQLite writes the file a symlinked index points to and keeps the
// side files beside that file. The database package creates the index
// before the scanner is built, so the link resolves.
index := resolveParentDir(indexPath)
target, err := filepath.EvalSymlinks(index)
if err == nil && target != index {
paths = append(paths, database.IndexFiles(target)...)
}
return paths
}
// resolveParentDir returns the absolute form of path with the symlinks in
// its parent directory resolved. If the parent directory cannot be
// resolved, it returns the absolute form unresolved. If path has no
// absolute form, it returns path.
func resolveParentDir(path string) string {
abs, err := filepath.Abs(path)
if err != nil {
return path
}
dir, err := filepath.EvalSymlinks(filepath.Dir(abs))
if err != nil {
return abs
}
return filepath.Join(dir, filepath.Base(abs))
}
-32
View File
@@ -1,32 +0,0 @@
//nolint:testpackage // exercises the unexported indexAndLockFiles helper
package snapshot
import (
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/require"
)
// The scan walks source paths with symlinks resolved, so vaultik's own
// files are named the same way, or a symlinked home would back them up.
func TestIndexAndLockFilesResolvesSymlinkedDirectory(t *testing.T) {
t.Parallel()
realDir, err := filepath.EvalSymlinks(t.TempDir())
require.NoError(t, err)
link := filepath.Join(t.TempDir(), "link")
require.NoError(t, os.Symlink(realDir, link))
paths := indexAndLockFiles(filepath.Join(link, "index.sqlite"), link)
require.Equal(t, []string{
filepath.Join(realDir, "index.sqlite"),
filepath.Join(realDir, "index.sqlite-wal"),
filepath.Join(realDir, "index.sqlite-shm"),
filepath.Join(realDir, "index.sqlite-journal"),
filepath.Join(realDir, "vaultik.pid"),
}, paths)
}
-245
View File
@@ -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)
}
})
}
}
+2 -1
View File
@@ -78,7 +78,8 @@ func TestProgressPercentWithSecondPathSmaller(t *testing.T) {
stats := progress.GetStats()
// With both paths counted, the percentage must not exceed 100%.
// Directories count toward the total size but produce no chunks, so
// the percentage ends just under 100%.
percent := float64(stats.BytesProcessed.Load()) /
float64(stats.TotalSize.Load()) * 100
if percent > 100 {
File diff suppressed because it is too large. Load diff
@@ -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)
}
}
+9 -24
View File
@@ -271,18 +271,16 @@ func (sm *SnapshotManager) CompleteSnapshot(
return sm.MarkSnapshotComplete(ctx, snapshotID)
}
// ExportSnapshotMetadata exports snapshot metadata to the backup destination store
// ExportSnapshotMetadata exports snapshot metadata to S3
//
// This method executes the complete snapshot metadata export process:
// 1. Creates a temporary directory for working files
// 2. Copies the main database to preserve its state
// 3. Cleans the copy to contain only current snapshot data
// 4. Vacuums the copy to remove the deleted data
// 5. Compresses the copy with zstd
// 6. Encrypts the compressed copy with age (always; recipients are required)
// 7. Builds the blob manifest from the copy, compressed but not encrypted
// 8. Uploads the database to metadata/{remote-key}/db.zst.age
// 9. Uploads the manifest to metadata/{remote-key}/manifest.json.zst
// 4. Dumps the cleaned database to SQL
// 5. Compresses the SQL dump with zstd
// 6. Encrypts the compressed data with age (always; recipients are required)
// 7. Uploads to S3 at: snapshots/{snapshot-id}.sql.zst[.age]
//
// The only caller (finalizeSnapshotMetadata) does not close the main database
// before calling this method: the index is copied at dbPath while it is still
@@ -520,8 +518,8 @@ 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,
// snapshot_mount_points) for deleted snapshots
// 2. Delete orphaned snapshot associations (snapshot_files, snapshot_blobs)
// 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)
@@ -950,8 +948,8 @@ func (sm *SnapshotManager) deleteOtherSnapshots(
return nil
}
// deleteOrphanedSnapshotAssociations deletes snapshot_files,
// snapshot_blobs and snapshot_mount_points for deleted snapshots
// deleteOrphanedSnapshotAssociations deletes snapshot_files and
// snapshot_blobs for deleted snapshots
func (sm *SnapshotManager) deleteOrphanedSnapshotAssociations(
ctx context.Context, tx *sql.Tx, currentSnapshotID string,
) error {
@@ -985,19 +983,6 @@ 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
}
-73
View File
@@ -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.
-135
View File
@@ -1,135 +0,0 @@
//nolint:testpackage // exercises the unexported uploadBlobIfNeeded
package snapshot
import (
"bytes"
"context"
"io"
"os"
"path/filepath"
"strings"
"testing"
"time"
"sneak.berlin/go/vaultik/internal/blob"
"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"
)
const uploadFailedLogMessage = "Failed to upload blob"
// uploadTestBlob uploads a small blob through store.
func uploadTestBlob(ctx context.Context, store storage.Storer) error {
data := []byte("blob data")
s := &Scanner{storage: store, ui: ui.NewWithColor(io.Discard, false)}
_, _, err := s.uploadBlobIfNeeded(ctx, "blobs/test", &blob.WithReader{
FinishedBlob: &blob.FinishedBlob{
Hash: "test",
Compressed: int64(len(data)),
},
Reader: bytes.NewReader(data),
}, time.Now(), &ScanResult{})
return err
}
// captureLog runs fn and returns what the logger wrote to stderr
// meanwhile, at the --verbose level. The logger writes to the os.Stderr
// it finds when it is initialized, so os.Stderr is pointed at a file
// first. Not parallel-safe: os.Stderr and the logger are process-global.
func captureLog(t *testing.T, fn func()) string {
t.Helper()
stderrPath := filepath.Join(t.TempDir(), "stderr")
stderrFile, err := os.Create(stderrPath) //nolint:gosec // G304: test temp path
if err != nil {
t.Fatalf("creating stderr file: %v", err)
}
previous := os.Stderr
os.Stderr = stderrFile
log.Initialize(log.Config{Verbose: true})
fn()
os.Stderr = previous
log.Initialize(log.Config{})
_ = stderrFile.Close()
captured, err := os.ReadFile(stderrPath) //nolint:gosec // G304: test temp path
if err != nil {
t.Fatalf("reading stderr file: %v", err)
}
return string(captured)
}
// An upload stopped by Ctrl-C or SIGTERM is not logged as an error; the
// interrupted message is all the user sees. See
// https://git.eeqj.de/sneak/vaultik/issues/434.
//
//nolint:paralleltest // captureLog replaces os.Stderr
func TestInterruptedUploadIsNotLoggedAsError(t *testing.T) {
inner, err := storage.NewFileStorer(t.TempDir())
if err != nil {
t.Fatal(err)
}
ctx, cancel := context.WithCancel(context.Background())
t.Cleanup(cancel)
// The user interrupts mid-upload. The injected error does not wrap
// context.Canceled, so only ctx shows why the upload failed.
store := faultstore.New(inner)
store.OnPut = func(string) faultstore.PutAction {
cancel()
return faultstore.PutFail
}
var uploadErr error
stderr := captureLog(t, func() { uploadErr = uploadTestBlob(ctx, store) })
if uploadErr == nil {
t.Fatal("expected the upload to fail")
}
if strings.Contains(stderr, uploadFailedLogMessage) {
t.Errorf("interrupted upload logged as a failure: %q", stderr)
}
}
// An upload that fails for any other reason is still logged.
//
//nolint:paralleltest // captureLog replaces os.Stderr
func TestFailedUploadIsLogged(t *testing.T) {
inner, err := storage.NewFileStorer(t.TempDir())
if err != nil {
t.Fatal(err)
}
store := faultstore.New(inner)
store.OnPut = func(string) faultstore.PutAction { return faultstore.PutFail }
var uploadErr error
stderr := captureLog(t, func() {
uploadErr = uploadTestBlob(context.Background(), store)
})
if uploadErr == nil {
t.Fatal("expected the upload to fail")
}
if !strings.Contains(stderr, uploadFailedLogMessage) {
t.Errorf("failed upload not logged: %q", stderr)
}
}
+3 -35
View File
@@ -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,
// delete, delete-of-missing, and not-found on Get and Stat. Each section
// takes its own fresh backend instance, so the order of sections never
// matters and no section sees another's objects.
// prefix filtering, overwrite, delete, delete-of-missing, and not-found on
// Get and Stat. Each section takes its own fresh backend instance, so the
// order of sections never 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) {
+10 -39
View File
@@ -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
// bytes, and a delete or a stat the backend refuses. It is the seam
// called for by the fault-injection tests (sneak/vaultik issue 72) and
// is meant to be reused by future tests rather than re-implemented per
// case.
// success while storing nothing, and reads that return corrupt or
// truncated bytes. It is the seam called for by the fault-injection
// tests (sneak/vaultik issue 72) and is meant to be reused by future
// tests rather than re-implemented per case.
//
// The wrapper delegates every method to the inner Storer. Four hooks
// change that: OnPut decides the fate of each write, OnGet decides how
// each read's bytes are returned, OnDelete decides whether each delete
// fails, and OnStat whether each stat fails. All are keyed by the object
// key, so a test can fault only blobs, only metadata, or a single
// object.
// The wrapper delegates every method to the inner Storer. Two hooks
// change that: OnPut decides the fate of each write, and OnGet decides
// how each read's bytes are returned. Both are keyed by the 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)
}
+17 -84
View File
@@ -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
// basePath is a directory on an unplugged volume, a write fails instead
// of landing on the disk under the mount point. This does not hold when
// 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.
// The basePath is recorded; the directory is created lazily on first
// write. Write operations (Put/PutWithProgress) call MkdirAll for the
// per-blob parent directory, which also covers basePath on first use.
// 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
// directories. It fails when the destination directory is missing, or
// when the prefix or a directory above it is a symlink whose target is
// missing; a prefix that is truly missing is an empty listing.
// List returns all keys with the given prefix. It fails when the
// destination directory is missing; a missing prefix under it 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
// the destination directory is missing, or when the prefix or a directory
// above it is a symlink whose target is missing.
// List, it sends an error when the destination directory 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():
@@ -237,7 +232,6 @@ func (f *FileStorer) ListStream(ctx context.Context, prefix string) <-chan Objec
ch <- ObjectInfo{
Key: relPath,
Size: info.Size(),
ModTime: info.ModTime(),
}
}
@@ -249,12 +243,11 @@ func (f *FileStorer) ListStream(ctx context.Context, prefix string) <-chan Objec
}
// 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.
// tempSuffix. 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)
exists, err := afero.Exists(f.fs, basePath)
if err != nil {
return fmt.Errorf("checking path: %w", err)
}
@@ -263,7 +256,7 @@ func (f *FileStorer) DeletePartialUploads(ctx context.Context, prefix string) er
return nil
}
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
}
@@ -304,19 +297,7 @@ func (f *FileStorer) writeAtomic(
path := f.fullPath(key)
dir := filepath.Dir(path)
// Checked on every write, so a destination that disappears part-way
// 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)
err := f.fs.MkdirAll(dir, storageDirPerm)
if err != nil {
return fmt.Errorf("creating directories: %w", err)
}
@@ -371,54 +352,6 @@ 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)
-272
View File
@@ -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)
}
}
-20
View File
@@ -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 {
@@ -221,7 +202,6 @@ func (r *RcloneStorer) ListStream(
ch <- ObjectInfo{
Key: key,
Size: obj.Size(),
ModTime: obj.ModTime(ctx),
}
}
})
-114
View File
@@ -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"
)
@@ -397,110 +390,3 @@ 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)
}
}
-1
View File
@@ -91,7 +91,6 @@ func (s *S3Storer) ListStream(ctx context.Context, prefix string) <-chan ObjectI
ch <- ObjectInfo{
Key: info.Key,
Size: info.Size,
ModTime: info.ModTime,
Err: info.Err,
}
}
+3 -70
View File
@@ -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
+2 -8
View File
@@ -14,7 +14,6 @@ import (
"context"
"errors"
"io"
"time"
)
// ErrNotFound is returned when an object does not exist.
@@ -28,9 +27,6 @@ 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.
// Only ListStream sets it; Stat leaves it zero.
ModTime time.Time
Err error // Error for streaming results (nil on success)
}
@@ -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
// not exist, and creates the directories below it as needed.
// Parent directories are created automatically for filesystem backends.
Put(ctx context.Context, key string, data io.Reader) error
// PutWithProgress stores data with progress reporting.
@@ -71,8 +66,7 @@ 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,
// size and modification time, for large result sets.
// ListStream returns a channel of ObjectInfo 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
+6 -47
View File
@@ -30,12 +30,6 @@ 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.
@@ -96,9 +90,8 @@ func parseFileURL(rawPath string) (*URL, error) {
}
// parseS3URL parses an s3://bucket/prefix URL. It rejects credentials in
// the userinfo or in the endpoint parameter's userinfo, a query that
// cannot be decoded, and any query parameter other than endpoint, region
// and ssl, so a credential-bearing URL is never stored or echoed.
// the userinfo and any query parameter other than endpoint, region 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 +107,13 @@ func parseS3URL(rawURL string) (*URL, error) {
return nil, ErrMissingBucket
}
// u.Query() would silently drop a part it cannot decode, endpoint
// included. The decode error is not wrapped: it can quote the value.
query, err := url.ParseQuery(u.RawQuery)
if err != nil {
return nil, ErrURLBadQuery
}
query := u.Query()
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 +125,9 @@ 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
// remote name, a query that cannot be decoded and any query parameter at
// query parameters, so credentials in the userinfo and any 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 +137,12 @@ 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
// the decode error can quote the value.
query, err := url.ParseQuery(u.RawQuery)
if err != nil {
return nil, ErrURLBadQuery
}
err = rejectUnknownParams(query)
err = rejectUnknownParams(u.Query())
if err != nil {
return nil, err
}
-119
View File
@@ -150,19 +150,6 @@ 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 +203,6 @@ 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.
+6 -10
View File
@@ -17,9 +17,6 @@
// Count, Percent) return ANSI-colored strings the caller composes into
// the message body. When color is disabled (non-TTY output or NO_COLOR
// set) all formatters return plain text.
//
// QuoteUnprintable is the same escaping without colour, for plain tables
// that print paths from the snapshot database.
package ui
import (
@@ -230,17 +227,17 @@ func (w *Writer) Hex(s string) string {
short = s[:hexAbbrevLen] + "..."
}
return w.paint(ansiCyan, QuoteUnprintable(short))
return w.paint(ansiCyan, sanitize(short))
}
// Snapshot colorizes a snapshot ID (full, no abbreviation).
func (w *Writer) Snapshot(id string) string {
return w.paint(ansiCyan+ansiBold, QuoteUnprintable(id))
return w.paint(ansiCyan+ansiBold, sanitize(id))
}
// Path colorizes a filesystem path.
func (w *Writer) Path(p string) string {
return w.paint(ansiBlue, QuoteUnprintable(p))
return w.paint(ansiBlue, sanitize(p))
}
// Size colorizes a byte count using humanize.Bytes.
@@ -315,15 +312,14 @@ func (w *Writer) paint(color, s string) string {
return color + s + ansiReset
}
// QuoteUnprintable returns s unchanged when every rune in it is printable,
// and a double-quoted, backslash-escaped form (\n, \x1b, …) otherwise. The
// sanitize returns s unchanged when every rune in it is printable, and a
// double-quoted, backslash-escaped form (\n, \x1b, …) otherwise. The
// string value formatters escape their argument through this before
// painting: identifiers, paths and symlink targets they render come from
// the snapshot database, which is not trusted, and escaping must happen
// before colour is applied — the painted result already contains the
// escape codes the raw text would otherwise be indistinguishable from.
// Plain tables call it directly.
func QuoteUnprintable(s string) string {
func sanitize(s string) string {
for _, r := range s {
if !unicode.IsPrint(r) {
return strconv.Quote(s)
+3 -79
View File
@@ -22,10 +22,6 @@ var errBlobHashMismatch = errors.New("blob hash mismatch")
var errBlobNotFullyRead = errors.New(
"blob closed before fully read; hash not verified")
// errWrongPrivateKeyForBlob is returned when the configured key parses
// but is not one of the keys a blob was encrypted to.
var errWrongPrivateKeyForBlob = errors.New("cannot decrypt this blob")
// hashVerifyReader wraps a blobgen.Reader and verifies the double-SHA-256 hash
// of decrypted plaintext when Close is called. It reuses the hash that
// blobgen.Reader already computes internally via its TeeReader, avoiding
@@ -91,14 +87,10 @@ func (v *Vaultik) FetchAndDecryptBlob(
return nil, err
}
reader, err := v.newBlobReader(rc, identities)
reader, err := blobgen.NewReader(rc, identities...)
if err != nil {
_ = rc.Close()
if errors.Is(err, errWrongPrivateKeyForBlob) {
return nil, err
}
return nil, fmt.Errorf("creating blob reader: %w", err)
}
@@ -110,32 +102,7 @@ func (v *Vaultik) FetchAndDecryptBlob(
}, nil
}
// newBlobReader opens the decrypting reader for a blob. When none of the
// identities can decrypt it, the error says in plain words that the
// configured private key is not one of the keys the blob was encrypted
// to and names where the key was configured.
func (v *Vaultik) newBlobReader(
r io.Reader, identities []age.Identity,
) (*blobgen.Reader, error) {
blobReader, err := blobgen.NewReader(r, identities...)
if _, ok := errors.AsType[*age.NoIdentityMatchError](err); ok {
return nil, fmt.Errorf(
"%w: the private key in %s is not one of the keys the blob was encrypted to",
errWrongPrivateKeyForBlob, v.Config.AgeSecretKeySourceName())
}
if err != nil {
return nil, err
}
return blobReader, nil
}
// 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) {
@@ -150,51 +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
}
// 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, deep verify or `snapshot files` 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()
return rc, nil
}
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