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fix #1143

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Backup was choosing a parent snapshot that had the same tags, which
makes backup unnecessarily slow when there are newer snapshots with
different tags.

There's no reason parent has to have the same tags.

This change makes backup choose the newest snapshot instead.
This commit is contained in:
Felix Lee 2017-10-05 11:48:26 -07:00
parent 1dcfd64028
commit 7b44fd0f9d
2 changed files with 5 additions and 1 deletions
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2
cmd/restic/cmd_backup.go
View File

@ -416,7 +416,7 @@ func runBackup(opts BackupOptions, gopts GlobalOptions, args []string) error {
// Find last snapshot to set it as parent, if not already set
if !opts.Force && parentSnapshotID == nil {
id, err := restic.FindLatestSnapshot(context.TODO(), repo, target, []restic.TagList{opts.Tags}, opts.Hostname)
id, err := restic.FindLatestSnapshot(context.TODO(), repo, target, []restic.TagList{}, opts.Hostname)
if err == nil {
parentSnapshotID = &id
} else if err != restic.ErrNoSnapshotFound {

4
cmd/restic/integration_test.go
View File

@ -656,6 +656,7 @@ func TestBackupTags(t *testing.T) {
rtest.Assert(t, newest != nil, "expected a new backup, got nil")
rtest.Assert(t, len(newest.Tags) == 0,
"expected no tags, got %v", newest.Tags)
parent := newest
opts.Tags = []string{"NL"}
testRunBackup(t, []string{env.testdata}, opts, env.gopts)
@ -664,6 +665,9 @@ func TestBackupTags(t *testing.T) {
rtest.Assert(t, newest != nil, "expected a new backup, got nil")
rtest.Assert(t, len(newest.Tags) == 1 && newest.Tags[0] == "NL",
"expected one NL tag, got %v", newest.Tags)
// Tagged backup should have untagged backup as parent.
rtest.Assert(t, parent.ID.Equal(*newest.Parent),
"expected parent to be %v, got %v", parent.ID, newest.Parent)
}
func testRunTag(t testing.TB, opts TagOptions, gopts GlobalOptions) {