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Merge pull request #675 from restic/parent-check-hostname

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Use the hostname filter to find a parent snasphot
This commit is contained in:
Alexander Neumann 2016-11-19 12:42:40 +01:00
commit e5617b5fd1
2 changed files with 10 additions and 4 deletions
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8
src/cmds/restic/cmd_backup.go
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@ -354,7 +354,13 @@ 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(repo, target, "")
hostname, err := os.Hostname()
if err != nil {
debug.Log("os.Hostname() returned err: %v", err)
hostname = ""
}
id, err := restic.FindLatestSnapshot(repo, target, hostname)
if err == nil {
parentSnapshotID = &id
} else if err != restic.ErrNoSnapshotFound {

6
src/restic/snapshot.go
View file

@ -145,8 +145,8 @@ func SamePaths(expected, actual []string) bool {
// ErrNoSnapshotFound is returned when no snapshot for the given criteria could be found.
var ErrNoSnapshotFound = errors.New("no snapshot found")
// FindLatestSnapshot finds latest snapshot with optional target/directory and source filters
func FindLatestSnapshot(repo Repository, targets []string, source string) (ID, error) {
// FindLatestSnapshot finds latest snapshot with optional target/directory and hostname filters.
func FindLatestSnapshot(repo Repository, targets []string, hostname string) (ID, error) {
var (
latest time.Time
latestID ID
@ -158,7 +158,7 @@ func FindLatestSnapshot(repo Repository, targets []string, source string) (ID, e
if err != nil {
return ID{}, errors.Errorf("Error listing snapshot: %v", err)
}
if snapshot.Time.After(latest) && SamePaths(snapshot.Paths, targets) && (source == "" || source == snapshot.Hostname) {
if snapshot.Time.After(latest) && SamePaths(snapshot.Paths, targets) && (hostname == "" || hostname == snapshot.Hostname) {
latest = snapshot.Time
latestID = snapshotID
found = true