Files
kopia/cli/command_snapshot_delete.go
2022-09-02 10:35:59 -07:00

120 lines
3.8 KiB
Go

package cli
import (
"context"
"fmt"
"github.com/pkg/errors"
"github.com/kopia/kopia/repo"
"github.com/kopia/kopia/repo/manifest"
"github.com/kopia/kopia/repo/object"
"github.com/kopia/kopia/snapshot"
)
type commandSnapshotDelete struct {
snapshotDeleteIDs []string
snapshotDeleteConfirm bool
snapshotDeleteAllSnapshotsForSource bool
}
func (c *commandSnapshotDelete) setup(svc appServices, parent commandParent) {
cmd := parent.Command("delete", "Explicitly delete a snapshot by providing a snapshot ID.")
cmd.Arg("id", "Snapshot ID or root object ID to be deleted").Required().StringsVar(&c.snapshotDeleteIDs)
cmd.Flag("all-snapshots-for-source", "Delete all snapshots for a source").BoolVar(&c.snapshotDeleteAllSnapshotsForSource)
cmd.Flag("delete", "Confirm deletion").BoolVar(&c.snapshotDeleteConfirm)
// hidden flag for backwards compatibility
cmd.Flag("unsafe-ignore-source", "Alias for --delete").Hidden().BoolVar(&c.snapshotDeleteConfirm)
cmd.Action(svc.repositoryWriterAction(c.run))
}
func (c *commandSnapshotDelete) run(ctx context.Context, rep repo.RepositoryWriter) error {
if c.snapshotDeleteAllSnapshotsForSource {
return c.snapshotDeleteSources(ctx, rep)
}
for _, id := range c.snapshotDeleteIDs {
m, err := snapshot.LoadSnapshot(ctx, rep, manifest.ID(id))
if err == nil {
// snapshot found by manifest ID, delete it directly.
if err = c.deleteSnapshot(ctx, rep, m); err != nil {
return errors.Wrapf(err, "error deleting %v", id)
}
} else if !errors.Is(err, snapshot.ErrSnapshotNotFound) {
return errors.Wrapf(err, "error loading snapshot %v", id)
} else if err := c.deleteSnapshotsByRootObjectID(ctx, rep, id); err != nil {
return errors.Wrapf(err, "error deleting snapshots by root ID %v", id)
}
}
return nil
}
func (c *commandSnapshotDelete) snapshotDeleteSources(ctx context.Context, rep repo.RepositoryWriter) error {
for _, source := range c.snapshotDeleteIDs {
si, err := snapshot.ParseSourceInfo(source, rep.ClientOptions().Hostname, rep.ClientOptions().Username)
if err != nil {
return errors.Wrapf(err, "invalid source '%s'", source)
}
manifestIDs, err := snapshot.ListSnapshotManifests(ctx, rep, &si, nil)
if err != nil {
return errors.Wrapf(err, "error listing manifests for %v", si)
}
manifests, err := snapshot.LoadSnapshots(ctx, rep, manifestIDs)
if err != nil {
return errors.Wrapf(err, "error loading manifests for %v", si)
}
if len(manifests) == 0 {
return errors.Errorf("no snapshots for source %v", si)
}
for _, m := range manifests {
if err := c.deleteSnapshot(ctx, rep, m); err != nil {
return errors.Wrap(err, "error deleting")
}
}
}
return nil
}
func (c *commandSnapshotDelete) deleteSnapshot(ctx context.Context, rep repo.RepositoryWriter, m *snapshot.Manifest) error {
desc := fmt.Sprintf("snapshot %v of %v at %v", m.ID, m.Source, formatTimestamp(m.StartTime.ToTime()))
if !c.snapshotDeleteConfirm {
log(ctx).Infof("Would delete %v (pass --delete to confirm)", desc)
return nil
}
log(ctx).Infof("Deleting %v...", desc)
return errors.Wrap(rep.DeleteManifest(ctx, m.ID), "error deleting manifest")
}
func (c *commandSnapshotDelete) deleteSnapshotsByRootObjectID(ctx context.Context, rep repo.RepositoryWriter, rootID string) error {
rootOID, err := object.ParseID(rootID)
if err != nil {
return errors.Wrapf(err, "invalid object ID")
}
manifests, err := snapshot.FindSnapshotsByRootObjectID(ctx, rep, rootOID)
if err != nil {
return errors.Wrapf(err, "unable to find snapshots by root %v", rootID)
}
if len(manifests) == 0 {
return errors.Errorf("no snapshots matched %v", rootID)
}
for _, m := range manifests {
if err := c.deleteSnapshot(ctx, rep, m); err != nil {
return errors.Wrap(err, "error deleting")
}
}
return nil
}