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find command: don't abort on tree load errors

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This commit is contained in:
Chris Howie 2019-03-29 20:32:18 -04:00
parent 870e7583a1
commit 36f22a0feb
2 changed files with 20 additions and 3 deletions
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9
changelog/unreleased/issue-2224 Normal file
View File

@ -0,0 +1,9 @@
Bugfix: Don't abort the find command when a tree can't be loaded
Change the find command so that missing trees don't result in a crash.
Instead, the error is logged to the debug log, and the tree ID is displayed
along with the snapshot it belongs to. This makes it possible to recover
repositories that are missing trees by forgetting the snapshots they are used
in.
https://github.com/restic/restic/issues/2224

14
cmd/restic/cmd_find.go
View File

@ -258,9 +258,13 @@ func (f *Finder) findInSnapshot(ctx context.Context, sn *restic.Snapshot) error
} }
f.out.newsn = sn f.out.newsn = sn
return walker.Walk(ctx, f.repo, *sn.Tree, f.ignoreTrees, func(_ restic.ID, nodepath string, node *restic.Node, err error) (bool, error) { return walker.Walk(ctx, f.repo, *sn.Tree, f.ignoreTrees, func(parentTreeID restic.ID, nodepath string, node *restic.Node, err error) (bool, error) {
if err != nil { if err != nil {
return false, err debug.Log("Error loading tree %v: %v", parentTreeID, err)
Printf("Unable to load tree %s\n ... which belongs to snapshot %s.\n", parentTreeID, sn.ID())
return false, walker.SkipNode
} }
if node == nil { if node == nil {
@ -340,7 +344,11 @@ func (f *Finder) findIDs(ctx context.Context, sn *restic.Snapshot) error {
f.out.newsn = sn f.out.newsn = sn
return walker.Walk(ctx, f.repo, *sn.Tree, f.ignoreTrees, func(parentTreeID restic.ID, nodepath string, node *restic.Node, err error) (bool, error) { return walker.Walk(ctx, f.repo, *sn.Tree, f.ignoreTrees, func(parentTreeID restic.ID, nodepath string, node *restic.Node, err error) (bool, error) {
if err != nil { if err != nil {
return false, err debug.Log("Error loading tree %v: %v", parentTreeID, err)
Printf("Unable to load tree %s\n ... which belongs to snapshot %s.\n", parentTreeID, sn.ID())
return false, walker.SkipNode
} }
if node == nil { if node == nil {