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Refuse to create empty snapshots

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Closes #862
This commit is contained in:
Alexander Neumann 2017-03-07 11:12:34 +01:00
parent bf88a62a16
commit b50d3ba805
1 changed files with 15 additions and 5 deletions
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20
src/restic/archiver/archiver.go
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@ -734,6 +734,21 @@ func (arch *Archiver) Snapshot(p *restic.Progress, paths, tags []string, hostnam
return nil, restic.ID{}, err return nil, restic.ID{}, err
} }
// receive the top-level tree
root := (<-resCh).(*restic.Node)
debug.Log("root node received: %v", root.Subtree.Str())
sn.Tree = root.Subtree
// load top-level tree again to see if it is empty
toptree, err := arch.repo.LoadTree(*root.Subtree)
if err != nil {
return nil, restic.ID{}, err
}
if len(toptree.Nodes) == 0 {
return nil, restic.ID{}, errors.Fatal("no files/dirs saved, refusing to create empty snapshot")
}
// save index // save index
err = arch.repo.SaveIndex() err = arch.repo.SaveIndex()
if err != nil { if err != nil {
@ -743,11 +758,6 @@ func (arch *Archiver) Snapshot(p *restic.Progress, paths, tags []string, hostnam
debug.Log("saved indexes") debug.Log("saved indexes")
// receive the top-level tree
root := (<-resCh).(*restic.Node)
debug.Log("root node received: %v", root.Subtree.Str())
sn.Tree = root.Subtree
// save snapshot // save snapshot
id, err := arch.repo.SaveJSONUnpacked(restic.SnapshotFile, sn) id, err := arch.repo.SaveJSONUnpacked(restic.SnapshotFile, sn)
if err != nil { if err != nil {