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Code Issues Releases Wiki Activity

Refactor tag to use FindFilteredSnapshots()

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This commit is contained in:
Pauline Middelink 2017-03-08 20:28:44 +01:00
parent 3c6c17abcd
commit 3432e7edcd
1 changed files with 9 additions and 39 deletions
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48
src/cmds/restic/cmd_tag.go
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@ -1,6 +1,8 @@
package main
import (
"context"
"github.com/spf13/cobra"
"restic"
@ -45,22 +47,14 @@ func init() {
tagFlags.StringSliceVar(&tagOptions.AddTags, "add", nil, "`tag` which will be added to the existing tags (can be given multiple times)")
tagFlags.StringSliceVar(&tagOptions.RemoveTags, "remove", nil, "`tag` which will be removed from the existing tags (can be given multiple times)")
tagFlags.StringVarP(&tagOptions.Host, "host", "H", "", `only consider snapshots for this host, when no snapshot ID is given`)
tagFlags.StringVarP(&tagOptions.Host, "host", "H", "", "only consider snapshots for this `host`, when no snapshot ID is given")
tagFlags.StringSliceVar(&tagOptions.Tags, "tag", nil, "only consider snapshots which include this `tag`, when no snapshot-ID is given")
tagFlags.StringSliceVar(&tagOptions.Paths, "path", nil, "only consider snapshots which include this (absolute) `path`, when no snapshot-ID is given")
}
func changeTags(repo *repository.Repository, snapshotID restic.ID, setTags, addTags, removeTags, tags, paths []string, host string) (bool, error) {
func changeTags(repo *repository.Repository, sn *restic.Snapshot, setTags, addTags, removeTags []string) (bool, error) {
var changed bool
sn, err := restic.LoadSnapshot(repo, snapshotID)
if err != nil {
return false, err
}
if (host != "" && host != sn.Hostname) || !sn.HasTags(tags) || !sn.HasPaths(paths) {
return false, nil
}
if len(setTags) != 0 {
// Setting the tag to an empty string really means no tags.
if len(setTags) == 1 && setTags[0] == "" {
@ -126,37 +120,13 @@ func runTag(opts TagOptions, gopts GlobalOptions, args []string) error {
}
}
var ids restic.IDs
if len(args) != 0 {
// When explit snapshot-IDs are given, the filtering does not matter anymore.
opts.Host = ""
opts.Tags = nil
opts.Paths = nil
// Process all snapshot IDs given as arguments.
for _, s := range args {
snapshotID, err := restic.FindSnapshot(repo, s)
if err != nil {
Warnf("could not find a snapshot for ID %q, ignoring: %v\n", s, err)
continue
}
ids = append(ids, snapshotID)
}
ids = ids.Uniq()
} else {
// If there were no arguments, just get all snapshots.
done := make(chan struct{})
defer close(done)
for snapshotID := range repo.List(restic.SnapshotFile, done) {
ids = append(ids, snapshotID)
}
}
changeCnt := 0
for _, id := range ids {
changed, err := changeTags(repo, id, opts.SetTags, opts.AddTags, opts.RemoveTags, opts.Tags, opts.Paths, opts.Host)
ctx, cancel := context.WithCancel(gopts.ctx)
defer cancel()
for sn := range FindFilteredSnapshots(ctx, repo, opts.Host, opts.Tags, opts.Paths, args) {
changed, err := changeTags(repo, sn, opts.SetTags, opts.AddTags, opts.RemoveTags)
if err != nil {
Warnf("unable to modify the tags for snapshot ID %q, ignoring: %v\n", id, err)
Warnf("unable to modify the tags for snapshot ID %q, ignoring: %v\n", sn.ID(), err)
continue
}
if changed {