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Code Issues Releases Wiki Activity

Snapshot: Add AddTags() and RemoveTags()

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Both prevent duplicate tags.
This commit is contained in:
Pauline Middelink 2017-03-05 17:43:18 +01:00 committed by Alexander Neumann
parent f6a258b4a8
commit 208edaa3d1
2 changed files with 40 additions and 28 deletions
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30
src/cmds/restic/cmd_tag.go
View file

@ -62,38 +62,16 @@ func changeTags(repo *repository.Repository, snapshotID restic.ID, setTags, addT
}
if len(setTags) != 0 {
// Setting the tag to an empty string really means no more tags.
// Setting the tag to an empty string really means no tags.
if len(setTags) == 1 && setTags[0] == "" {
setTags = nil
}
sn.Tags = setTags
changed = true
} else {
for _, add := range addTags {
found := false
for _, tag := range sn.Tags {
if tag == add {
found = true
break
}
}
if !found {
sn.Tags = append(sn.Tags, add)
changed = true
}
}
for _, remove := range removeTags {
for i, tag := range sn.Tags {
if tag == remove {
// https://github.com/golang/go/wiki/SliceTricks
sn.Tags[i] = sn.Tags[len(sn.Tags)-1]
sn.Tags[len(sn.Tags)-1] = ""
sn.Tags = sn.Tags[:len(sn.Tags)-1]
changed = true
break
}
}
changed = sn.AddTags(addTags)
if sn.RemoveTags(removeTags) {
changed = true
}
}

38
src/restic/snapshot.go
View file

@ -73,8 +73,7 @@ func LoadAllSnapshots(repo Repository) (snapshots []*Snapshot, err error) {
snapshots = append(snapshots, sn)
}
return snapshots, nil
return
}
func (sn Snapshot) String() string {
@ -99,6 +98,41 @@ func (sn *Snapshot) fillUserInfo() error {
return err
}
// AddTags adds the given tags to the snapshots tags, preventing duplicates.
// It returns true if any changes were made.
func (sn *Snapshot) AddTags(addTags []string) (changed bool) {
nextTag:
for _, add := range addTags {
for _, tag := range sn.Tags {
if tag == add {
continue nextTag
}
}
sn.Tags = append(sn.Tags, add)
changed = true
}
return
}
// RemoveTags removes the given tags from the snapshots tags and
// returns true if any changes were made.
func (sn *Snapshot) RemoveTags(removeTags []string) (changed bool) {
for _, remove := range removeTags {
for i, tag := range sn.Tags {
if tag == remove {
// https://github.com/golang/go/wiki/SliceTricks
sn.Tags[i] = sn.Tags[len(sn.Tags)-1]
sn.Tags[len(sn.Tags)-1] = ""
sn.Tags = sn.Tags[:len(sn.Tags)-1]
changed = true
break
}
}
}
return
}
// HasTags returns true if the snapshot has all the tags.
func (sn *Snapshot) HasTags(tags []string) bool {
nextTag: