forked from TrueCloudLab/restic
rewrite: cleanup new metadata options and fix no parameters check
This commit is contained in:
Michael Eischer
parent
7de97d7480
commit
893d0d6325
2 changed files with 36 additions and 33 deletions
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@ -52,12 +52,16 @@ type snapshotMetadata struct {
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Time *time.Time
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}
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type SnapshotMetadataArgs struct {
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type snapshotMetadataArgs struct {
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Hostname string
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Time string
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}
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func (sma SnapshotMetadataArgs) convert() (*snapshotMetadata, error) {
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func (sma snapshotMetadataArgs) empty() bool {
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return sma.Hostname == "" && sma.Time == ""
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}
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func (sma snapshotMetadataArgs) convert() (*snapshotMetadata, error) {
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if sma.Time == "" && sma.Hostname == "" {
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return nil, nil
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}
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@ -78,16 +82,15 @@ func (sma SnapshotMetadataArgs) convert() (*snapshotMetadata, error) {
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// RewriteOptions collects all options for the rewrite command.
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type RewriteOptions struct {
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Forget bool
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DryRun bool
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Metadata *SnapshotMetadataArgs
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Forget bool
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DryRun bool
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metadata snapshotMetadataArgs
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restic.SnapshotFilter
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excludePatternOptions
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}
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var rewriteOptions RewriteOptions
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var metadataOptions SnapshotMetadataArgs
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func init() {
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cmdRoot.AddCommand(cmdRewrite)
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@ -95,15 +98,15 @@ func init() {
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f := cmdRewrite.Flags()
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f.BoolVarP(&rewriteOptions.Forget, "forget", "", false, "remove original snapshots after creating new ones")
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f.BoolVarP(&rewriteOptions.DryRun, "dry-run", "n", false, "do not do anything, just print what would be done")
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f.StringVar(&metadataOptions.Hostname, "new-host", "", "rewrite hostname")
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f.StringVar(&metadataOptions.Time, "new-time", "", "rewrite time of the backup")
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rewriteOptions.Metadata = &metadataOptions
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f.StringVar(&rewriteOptions.metadata.Hostname, "new-host", "", "replace hostname")
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f.StringVar(&rewriteOptions.metadata.Time, "new-time", "", "replace time of the backup")
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initMultiSnapshotFilter(f, &rewriteOptions.SnapshotFilter, true)
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initExcludePatternOptions(f, &rewriteOptions.excludePatternOptions)
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}
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type rewriteFilterFunc func(ctx context.Context, sn *restic.Snapshot) (restic.ID, error)
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func rewriteSnapshot(ctx context.Context, repo *repository.Repository, sn *restic.Snapshot, opts RewriteOptions) (bool, error) {
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if sn.Tree == nil {
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return false, errors.Errorf("snapshot %v has nil tree", sn.ID().Str())
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@ -114,7 +117,7 @@ func rewriteSnapshot(ctx context.Context, repo *repository.Repository, sn *resti
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return false, err
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}
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metadata, err := opts.Metadata.convert()
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metadata, err := opts.metadata.convert()
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if err != nil {
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return false, err
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@ -146,7 +149,8 @@ func rewriteSnapshot(ctx context.Context, repo *repository.Repository, sn *resti
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}, opts.DryRun, opts.Forget, metadata, "rewrite")
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}
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func filterAndReplaceSnapshot(ctx context.Context, repo restic.Repository, sn *restic.Snapshot, filter func(ctx context.Context, sn *restic.Snapshot) (restic.ID, error), dryRun bool, forget bool, metadata *snapshotMetadata, addTag string) (bool, error) {
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func filterAndReplaceSnapshot(ctx context.Context, repo restic.Repository, sn *restic.Snapshot,
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filter rewriteFilterFunc, dryRun bool, forget bool, newMetadata *snapshotMetadata, addTag string) (bool, error) {
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wg, wgCtx := errgroup.WithContext(ctx)
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repo.StartPackUploader(wgCtx, wg)
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@ -180,7 +184,7 @@ func filterAndReplaceSnapshot(ctx context.Context, repo restic.Repository, sn *r
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return true, nil
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}
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if filteredTree == *sn.Tree && metadata == nil {
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if filteredTree == *sn.Tree && newMetadata == nil {
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debug.Log("Snapshot %v not modified", sn)
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return false, nil
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}
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@ -193,12 +197,12 @@ func filterAndReplaceSnapshot(ctx context.Context, repo restic.Repository, sn *r
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Verbosef("would remove old snapshot\n")
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}
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if metadata != nil && metadata.Time != nil {
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Verbosef("would set time to %s\n", metadata.Time)
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if newMetadata != nil && newMetadata.Time != nil {
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Verbosef("would set time to %s\n", newMetadata.Time)
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}
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if metadata != nil && metadata.Hostname != "" {
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Verbosef("would set time to %s\n", metadata.Hostname)
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if newMetadata != nil && newMetadata.Hostname != "" {
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Verbosef("would set time to %s\n", newMetadata.Hostname)
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}
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return true, nil
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@ -212,15 +216,14 @@ func filterAndReplaceSnapshot(ctx context.Context, repo restic.Repository, sn *r
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sn.AddTags([]string{addTag})
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}
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if metadata != nil && metadata.Time != nil {
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Verbosef("Setting time to %s\n", *metadata.Time)
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sn.Time = *metadata.Time
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if newMetadata != nil && newMetadata.Time != nil {
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Verbosef("setting time to %s\n", *newMetadata.Time)
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sn.Time = *newMetadata.Time
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}
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if metadata != nil && metadata.Hostname != "" {
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Verbosef("Setting host to %s\n", metadata.Hostname)
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sn.Hostname = metadata.Hostname
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if newMetadata != nil && newMetadata.Hostname != "" {
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Verbosef("setting host to %s\n", newMetadata.Hostname)
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sn.Hostname = newMetadata.Hostname
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}
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// Save the new snapshot.
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@ -242,7 +245,7 @@ func filterAndReplaceSnapshot(ctx context.Context, repo restic.Repository, sn *r
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}
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func runRewrite(ctx context.Context, opts RewriteOptions, gopts GlobalOptions, args []string) error {
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if opts.excludePatternOptions.Empty() && opts.Metadata == nil {
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if opts.excludePatternOptions.Empty() && opts.metadata.empty() {
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return errors.Fatal("Nothing to do: no excludes provided and no new metadata provided")
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}
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@ -9,13 +9,13 @@ import (
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rtest "github.com/restic/restic/internal/test"
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)
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func testRunRewriteExclude(t testing.TB, gopts GlobalOptions, excludes []string, forget bool, metadata *SnapshotMetadataArgs) {
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func testRunRewriteExclude(t testing.TB, gopts GlobalOptions, excludes []string, forget bool, metadata snapshotMetadataArgs) {
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opts := RewriteOptions{
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excludePatternOptions: excludePatternOptions{
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Excludes: excludes,
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},
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Forget: forget,
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Metadata: metadata,
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metadata: metadata,
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}
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rtest.OK(t, runRewrite(context.TODO(), opts, gopts, nil))
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@ -39,7 +39,7 @@ func TestRewrite(t *testing.T) {
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createBasicRewriteRepo(t, env)
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// exclude some data
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testRunRewriteExclude(t, env.gopts, []string{"3"}, false, &SnapshotMetadataArgs{Hostname: "", Time: ""})
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testRunRewriteExclude(t, env.gopts, []string{"3"}, false, snapshotMetadataArgs{Hostname: "", Time: ""})
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snapshotIDs := testRunList(t, "snapshots", env.gopts)
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rtest.Assert(t, len(snapshotIDs) == 2, "expected two snapshots, got %v", snapshotIDs)
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testRunCheck(t, env.gopts)
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@ -51,7 +51,7 @@ func TestRewriteUnchanged(t *testing.T) {
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snapshotID := createBasicRewriteRepo(t, env)
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// use an exclude that will not exclude anything
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testRunRewriteExclude(t, env.gopts, []string{"3dflkhjgdflhkjetrlkhjgfdlhkj"}, false, &SnapshotMetadataArgs{Hostname: "", Time: ""})
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testRunRewriteExclude(t, env.gopts, []string{"3dflkhjgdflhkjetrlkhjgfdlhkj"}, false, snapshotMetadataArgs{Hostname: "", Time: ""})
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newSnapshotIDs := testRunList(t, "snapshots", env.gopts)
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rtest.Assert(t, len(newSnapshotIDs) == 1, "expected one snapshot, got %v", newSnapshotIDs)
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rtest.Assert(t, snapshotID == newSnapshotIDs[0], "snapshot id changed unexpectedly")
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@ -64,7 +64,7 @@ func TestRewriteReplace(t *testing.T) {
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snapshotID := createBasicRewriteRepo(t, env)
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// exclude some data
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testRunRewriteExclude(t, env.gopts, []string{"3"}, true, &SnapshotMetadataArgs{Hostname: "", Time: ""})
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testRunRewriteExclude(t, env.gopts, []string{"3"}, true, snapshotMetadataArgs{Hostname: "", Time: ""})
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newSnapshotIDs := testRunList(t, "snapshots", env.gopts)
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rtest.Assert(t, len(newSnapshotIDs) == 1, "expected one snapshot, got %v", newSnapshotIDs)
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rtest.Assert(t, snapshotID != newSnapshotIDs[0], "snapshot id should have changed")
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@ -73,14 +73,14 @@ func TestRewriteReplace(t *testing.T) {
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testRunCheck(t, env.gopts)
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}
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func testRewriteMetadata(t *testing.T, metadata SnapshotMetadataArgs) {
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func testRewriteMetadata(t *testing.T, metadata snapshotMetadataArgs) {
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env, cleanup := withTestEnvironment(t)
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env.gopts.backendTestHook = nil
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defer cleanup()
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createBasicRewriteRepo(t, env)
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repo, _ := OpenRepository(context.TODO(), env.gopts)
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testRunRewriteExclude(t, env.gopts, []string{}, true, &metadata)
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testRunRewriteExclude(t, env.gopts, []string{}, true, metadata)
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snapshots := FindFilteredSnapshots(context.TODO(), repo, repo, &restic.SnapshotFilter{}, []string{})
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@ -99,7 +99,7 @@ func TestRewriteMetadata(t *testing.T) {
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newHost := "new host"
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newTime := "1999-01-01 11:11:11"
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for _, metadata := range []SnapshotMetadataArgs{
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for _, metadata := range []snapshotMetadataArgs{
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{Hostname: "", Time: newTime},
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{Hostname: newHost, Time: ""},
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{Hostname: newHost, Time: newTime},
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