mirror/restic
1
0
Fork 0
mirror of https://github.com/restic/restic.git synced 2024-12-24 16:54:00 +00:00
Code Issues Releases Wiki Activity

Take last snapshot as parent by default and allow force re-reading

Browse source
This commit is contained in:
Matthieu Rakotojaona 2015-04-03 21:18:09 +02:00
parent f02865a205
commit 1d0f8fa80e
1 changed files with 42 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

44
cmd/restic/cmd_backup.go
View file

@ -13,7 +13,8 @@ import (
)
type CmdBackup struct {
Parent string `short:"p" long:"parent" description:"use this parent snapshot (default: not set)"`
Parent string `short:"p" long:"parent" description:"use this parent snapshot (default: last snapshot in repo that has the same target)"`
Force bool `short:"f" long:"force" description:"Force re-reading the target. Overrides the \"parent\" flag"`
}
func init() {
@ -190,7 +191,8 @@ func (cmd CmdBackup) Execute(args []string) error {
parentSnapshotID backend.ID
)
if cmd.Parent != "" {
// Force using a parent
if !cmd.Force && cmd.Parent != "" {
parentSnapshot, err = s.FindSnapshot(cmd.Parent)
if err != nil {
return fmt.Errorf("invalid id %q: %v", cmd.Parent, err)
@ -204,6 +206,44 @@ func (cmd CmdBackup) Execute(args []string) error {
fmt.Printf("found parent snapshot %v\n", parentSnapshotID)
}
// Find last snapshot to set it as parent, if not already set
if !cmd.Force && parentSnapshot == "" {
samePaths := func(expected, actual []string) bool {
if len(expected) != len(actual) {
return false
}
for i := range expected {
if expected[i] != actual[i] {
return false
}
}
return true
}
var latest time.Time
for snapshotIDString := range s.List(backend.Snapshot, make(chan struct{})) {
snapshotID, err := backend.ParseID(snapshotIDString)
if err != nil {
return fmt.Errorf("Error with the listing of snapshots inputting invalid backend ids: %v", err)
}
snapshot, err := restic.LoadSnapshot(s, snapshotID)
if err != nil {
return fmt.Errorf("Error listing snapshot: %v", err)
}
if snapshot.Time.After(latest) && samePaths(snapshot.Paths, target) {
latest = snapshot.Time
parentSnapshotID = snapshotID
parentSnapshot = snapshotIDString
}
}
if parentSnapshot != "" {
fmt.Printf("using parent snapshot %v\n", parentSnapshotID)
}
}
fmt.Printf("scan %v\n", target)
stat, err := restic.Scan(target, newScanProgress())