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Add --keep-newer-than flag for rolling retention window

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snapshot create --prune now accepts --keep-newer-than <duration> (e.g.
4w, 30d, 6mo) to keep a rolling window of snapshots instead of only
the latest. Supports d/w/mo/y units and combinations (2w3d).

Without --keep-newer-than, --prune still defaults to keep-latest-only.
This commit is contained in:
Jeffrey Paul
2026-06-09 13:22:24 -04:00
parent f719ab3adc
commit ee240faa32
5 changed files with 101 additions and 28 deletions
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12
README.md
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@@ -102,6 +102,9 @@ go install git.eeqj.de/sneak/vaultik@latest
# Back up and clean up old snapshots + orphan blobs in one shot
vaultik --config /etc/vaultik.yml snapshot create --prune
# Daily cron: back up, keep last 4 weeks of snapshots
vaultik --config /etc/vaultik.yml snapshot create --cron --prune --keep-newer-than 4w
```
---
@@ -111,7 +114,7 @@ go install git.eeqj.de/sneak/vaultik@latest
### commands
```sh
vaultik [--config <path>] snapshot create [snapshot-names...] [--cron] [--prune] [--skip-errors]
vaultik [--config <path>] snapshot create [snapshot-names...] [--cron] [--prune] [--keep-newer-than <duration>] [--skip-errors]
vaultik [--config <path>] snapshot list [--json]
vaultik [--config <path>] snapshot verify <snapshot-id> [--deep] [--json]
vaultik [--config <path>] snapshot purge [--keep-latest | --older-than <duration>] [--snapshot <name>...] [--force]
@@ -144,8 +147,11 @@ vaultik version
**snapshot create**: Perform incremental backup of configured snapshots.
* Optional snapshot names argument to create specific snapshots (default: all)
* `--cron`: Silent unless error (for crontab)
* `--prune`: After backup, drop older snapshots of each backed-up name (keeping
only the latest) and remove orphaned blobs from remote storage
* `--prune`: After backup, drop older snapshots of each backed-up name and
remove orphaned blobs from remote storage. By default keeps only the latest
snapshot per name; use `--keep-newer-than` for a rolling window.
* `--keep-newer-than <duration>`: With `--prune`, keep snapshots newer than
this duration instead of only the latest (e.g. `4w`, `30d`, `6mo`, `1y`)
* `--skip-errors`: Skip file read errors (log them loudly but continue)
**snapshot list**: List all snapshots with their timestamps and sizes.