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118a69a84b
The new functions much better convey the intent behind the lock request. This allows cleanly integrating noLock (for read) and dryRun (write/exclusive) handling. There are only minor changes to existing behavior with two exceptions: - `tag` no longer accepts the `--no-lock` flag. As it replaces files in the repository, this always requires an exclusive lock. - `debug examine` now returns an error if both `--extract-pack` and `--no-lock` are given.
97 lines
2.4 KiB
Go
97 lines
2.4 KiB
Go
package main
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import (
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"context"
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"io"
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"os"
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"github.com/restic/restic/internal/backend"
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"github.com/restic/restic/internal/errors"
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"github.com/restic/restic/internal/repository"
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"github.com/restic/restic/internal/restic"
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"github.com/restic/restic/internal/ui/termstatus"
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"github.com/spf13/cobra"
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)
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var cmdRepairPacks = &cobra.Command{
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Use: "packs [packIDs...]",
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Short: "Salvage damaged pack files",
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Long: `
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WARNING: The CLI for this command is experimental and will likely change in the future!
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The "repair packs" command extracts intact blobs from the specified pack files, rebuilds
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the index to remove the damaged pack files and removes the pack files from the repository.
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EXIT STATUS
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===========
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Exit status is 0 if the command was successful, and non-zero if there was any error.
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`,
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DisableAutoGenTag: true,
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RunE: func(cmd *cobra.Command, args []string) error {
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term, cancel := setupTermstatus()
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defer cancel()
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return runRepairPacks(cmd.Context(), globalOptions, term, args)
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},
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}
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func init() {
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cmdRepair.AddCommand(cmdRepairPacks)
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}
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func runRepairPacks(ctx context.Context, gopts GlobalOptions, term *termstatus.Terminal, args []string) error {
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ids := restic.NewIDSet()
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for _, arg := range args {
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id, err := restic.ParseID(arg)
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if err != nil {
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return err
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}
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ids.Insert(id)
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}
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if len(ids) == 0 {
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return errors.Fatal("no ids specified")
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}
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ctx, repo, unlock, err := openWithExclusiveLock(ctx, gopts, false)
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if err != nil {
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return err
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}
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defer unlock()
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bar := newIndexProgress(gopts.Quiet, gopts.JSON)
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err = repo.LoadIndex(ctx, bar)
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if err != nil {
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return errors.Fatalf("%s", err)
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}
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printer := newTerminalProgressPrinter(gopts.verbosity, term)
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printer.P("saving backup copies of pack files to current folder")
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for id := range ids {
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f, err := os.OpenFile("pack-"+id.String(), os.O_WRONLY|os.O_CREATE|os.O_EXCL, 0o666)
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if err != nil {
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return err
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}
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err = repo.Backend().Load(ctx, backend.Handle{Type: restic.PackFile, Name: id.String()}, 0, 0, func(rd io.Reader) error {
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_, err := f.Seek(0, 0)
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if err != nil {
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return err
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}
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_, err = io.Copy(f, rd)
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return err
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})
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if err != nil {
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return err
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}
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}
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err = repository.RepairPacks(ctx, repo, ids, printer)
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if err != nil {
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return errors.Fatalf("%s", err)
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}
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Warnf("\nUse `restic repair snapshots --forget` to remove the corrupted data blobs from all snapshots\n")
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return nil
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}
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