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restic: list pack header via ListPackHandles

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Replace ListPack with ListPackHandles so callers only receive blob
handles from pack headers, not layout fields.
This commit is contained in:
Michael Eischer
2026-06-13 17:50:21 +02:00
parent 8169814b38
commit a9e0b46358
8 changed files with 38 additions and 26 deletions
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internal/repository/repository.go
+16 -3
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@@ -783,7 +783,7 @@ func (r *Repository) createIndexFromPacks(ctx context.Context, packsize map[rest
// a worker receives an pack ID from ch, reads the pack contents, and adds them to idx
worker := func() error {
for fi := range ch {
entries, err := r.ListPack(wgCtx, fi.ID, fi.Size)
entries, err := r.listPack(wgCtx, fi.ID, fi.Size)
if err != nil {
debug.Log("unable to list pack file %v", fi.ID.Str())
m.Lock()
@@ -964,8 +964,8 @@ func (r *Repository) List(ctx context.Context, t restic.FileType, fn func(restic
})
}
// ListPack returns the list of blobs saved in the pack id.
func (r *Repository) ListPack(ctx context.Context, id restic.ID, size int64) (restic.Blobs, error) {
// listPack returns blob entries from the pack file header including offsets.
func (r *Repository) listPack(ctx context.Context, id restic.ID, size int64) (restic.Blobs, error) {
h := backend.Handle{Type: restic.PackFile, Name: id.String()}
entries, _, err := pack.List(r.Key(), backend.ReaderAt(ctx, r.be, h), size)
@@ -981,6 +981,19 @@ func (r *Repository) ListPack(ctx context.Context, id restic.ID, size int64) (re
return entries, err
}
// ListPackHandles returns the blob handles stored in the pack file header.
func (r *Repository) ListPackHandles(ctx context.Context, id restic.ID, size int64) ([]restic.BlobHandle, error) {
blobs, err := r.listPack(ctx, id, size)
if err != nil {
return nil, err
}
handles := make([]restic.BlobHandle, len(blobs))
for i, blob := range blobs {
handles[i] = blob.BlobHandle
}
return handles, nil
}
// Delete calls backend.Delete() if implemented, and returns an error
// otherwise.
func (r *Repository) Delete(ctx context.Context) error {