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backup: Ignore xattr.list permission error for parent directories

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On FreeBSD, limited users may not be able to even list xattrs for the
parent directories above the snapshot source paths. As this can cause
the backup to fail, just ignore those errors.
This commit is contained in:
Michael Eischer
2024-01-31 20:48:03 +01:00
parent 6091029fd6
commit bf054c09d2
17 changed files with 97 additions and 25 deletions
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14
internal/archiver/archiver.go
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@@ -237,8 +237,8 @@ func (arch *Archiver) trackItem(item string, previous, current *restic.Node, s I
}
// nodeFromFileInfo returns the restic node from an os.FileInfo.
func (arch *Archiver) nodeFromFileInfo(snPath, filename string, fi os.FileInfo) (*restic.Node, error) {
node, err := restic.NodeFromFileInfo(filename, fi)
func (arch *Archiver) nodeFromFileInfo(snPath, filename string, fi os.FileInfo, ignoreXattrListError bool) (*restic.Node, error) {
node, err := restic.NodeFromFileInfo(filename, fi, ignoreXattrListError)
if !arch.WithAtime {
node.AccessTime = node.ModTime
}
@@ -289,7 +289,7 @@ func (arch *Archiver) wrapLoadTreeError(id restic.ID, err error) error {
func (arch *Archiver) saveDir(ctx context.Context, snPath string, dir string, fi os.FileInfo, previous *restic.Tree, complete CompleteFunc) (d FutureNode, err error) {
debug.Log("%v %v", snPath, dir)
treeNode, err := arch.nodeFromFileInfo(snPath, dir, fi)
treeNode, err := arch.nodeFromFileInfo(snPath, dir, fi, false)
if err != nil {
return FutureNode{}, err
}
@@ -444,7 +444,7 @@ func (arch *Archiver) save(ctx context.Context, snPath, target string, previous
debug.Log("%v hasn't changed, using old list of blobs", target)
arch.trackItem(snPath, previous, previous, ItemStats{}, time.Since(start))
arch.CompleteBlob(previous.Size)
node, err := arch.nodeFromFileInfo(snPath, target, fi)
node, err := arch.nodeFromFileInfo(snPath, target, fi, false)
if err != nil {
return FutureNode{}, false, err
}
@@ -540,7 +540,7 @@ func (arch *Archiver) save(ctx context.Context, snPath, target string, previous
default:
debug.Log(" %v other", target)
node, err := arch.nodeFromFileInfo(snPath, target, fi)
node, err := arch.nodeFromFileInfo(snPath, target, fi, false)
if err != nil {
return FutureNode{}, false, err
}
@@ -623,7 +623,9 @@ func (arch *Archiver) saveTree(ctx context.Context, snPath string, atree *Tree,
}
debug.Log("%v, dir node data loaded from %v", snPath, atree.FileInfoPath)
node, err = arch.nodeFromFileInfo(snPath, atree.FileInfoPath, fi)
// in some cases reading xattrs for directories above the backup target is not allowed
// thus ignore errors for such folders.
node, err = arch.nodeFromFileInfo(snPath, atree.FileInfoPath, fi, true)
if err != nil {
return FutureNode{}, 0, err
}