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Code Issues Releases Wiki Activity

Refactor backup a bit

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This commit is contained in:
Alexander Neumann 2015-05-10 01:08:24 +02:00
parent fd80499954
commit 9c375ea382
1 changed files with 41 additions and 24 deletions
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65
cmd/restic/cmd_backup.go
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@ -9,6 +9,7 @@ import (
"github.com/restic/restic"
"github.com/restic/restic/backend"
"github.com/restic/restic/repository"
"golang.org/x/crypto/ssh/terminal"
)
@ -162,6 +163,43 @@ func newArchiveProgress(todo restic.Stat) *restic.Progress {
return archiveProgress
}
func samePaths(expected, actual []string) bool {
if expected == nil || actual == nil {
return true
}
if len(expected) != len(actual) {
return false
}
for i := range expected {
if expected[i] != actual[i] {
return false
}
}
return true
}
func findLatestSnapshot(repo *repository.Repository, targets []string) (backend.ID, error) {
var (
latest time.Time
latestID backend.ID
)
for snapshotID := range repo.List(backend.Snapshot, make(chan struct{})) {
snapshot, err := restic.LoadSnapshot(repo, snapshotID)
if err != nil {
return nil, fmt.Errorf("Error listing snapshot: %v", err)
}
if snapshot.Time.After(latest) && samePaths(snapshot.Paths, targets) {
latest = snapshot.Time
latestID = snapshotID
}
}
return latestID, nil
}
func (cmd CmdBackup) Execute(args []string) error {
if len(args) == 0 {
return fmt.Errorf("wrong number of parameters, Usage: %s", cmd.Usage())
@ -199,30 +237,9 @@ func (cmd CmdBackup) Execute(args []string) error {
// Find last snapshot to set it as parent, if not already set
if !cmd.Force && parentSnapshotID == nil {
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 id := range s.List(backend.Snapshot, make(chan struct{})) {
snapshot, err := restic.LoadSnapshot(s, id)
if err != nil {
return fmt.Errorf("Error listing snapshot: %v", err)
}
if snapshot.Time.After(latest) && samePaths(snapshot.Paths, target) {
latest = snapshot.Time
parentSnapshotID = id
}
parentSnapshotID, err = findLatestSnapshot(s, target)
if err != nil {
return err
}
if parentSnapshotID != nil {