Files
vaultik/internal/snapshot/module.go
T
clawbot 192ceac73e
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Do not prune when a backup misses an earlier mount point (closes #395)
snapshot create --prune purged the older snapshots holding a volume's
files when the volume, mounted below a configured path, was not
mounted: its empty mount point read as deleted files.

The scan now records in the local index each directory at or below a
configured path that the walk found an entry in and that, once listed,
is on a different device from its parent; listing mounts an
automounted volume. Under --prune, when an earlier snapshot of that
name recorded such a directory and this run does not, the run skips
the prune, keeps every older snapshot and exits non-zero, naming the
directory. For a volume retired on purpose, snapshot purge removes the
older snapshots.

Model: opus-5-5
2026-10-15 06:03:29 +00:00

71 lines
2.2 KiB
Go

package snapshot
import (
"os"
"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/storage"
"sneak.berlin/go/vaultik/internal/ui"
)
// ScannerParams holds parameters for scanner creation
type ScannerParams struct {
EnableProgress bool
UI *ui.Writer // Where user-facing scanner messages go; nil = discard
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.
// It provides a ScannerFactory that can create Scanner instances
// with custom parameters while sharing common dependencies.
//
//nolint:gochecknoglobals // fx module definitions are conventionally globals
var Module = fx.Module("backup",
fx.Provide(
provideScannerFactory,
NewSnapshotManager,
),
)
// ScannerFactory creates scanners with custom parameters
type ScannerFactory func(params ScannerParams) *Scanner
func provideScannerFactory(
cfg *config.Config, repos *database.Repositories, storer storage.Storer,
) ScannerFactory {
return func(params ScannerParams) *Scanner {
// Use provided excludes, or fall back to global config excludes
excludes := params.Exclude
if len(excludes) == 0 {
excludes = cfg.Exclude
}
return NewScanner(ScannerConfig{
FS: params.Fs,
ChunkSize: cfg.ChunkSize.Int64(),
Repositories: repos,
Storage: storer,
MaxBlobSize: cfg.BlobSizeLimit.Int64(),
CompressionLevel: cfg.CompressionLevel,
AgeRecipients: cfg.AgeRecipients,
EnableProgress: params.EnableProgress,
UI: params.UI,
Exclude: excludes,
SkipErrors: params.SkipErrors,
PreviousSnapshotID: params.PreviousSnapshotID,
DeviceNumber: params.DeviceNumber,
})
}
}