restic/cmd/restic/cmd_list.go
jo ea59896bd6
Add a global option --retry-lock
Fixes restic#719

If the option is passed, restic will wait the specified duration of time
and retry locking the repo every 10 seconds (or more often if the total
timeout is relatively small).

- Play nice with json output
- Reduce wait time in lock tests
- Rework timeout last attempt
- Reduce test wait time to 0.1s
- Use exponential back off for the retry lock
- Don't pass gopts to lockRepo functions
- Use global variable for retry sleep setup
- Exit retry lock on cancel
- Better wording for flag help
- Reorder debug statement
- Refactor tests
- Lower max sleep time to 1m
- Test that we cancel/timeout in time
- Use non blocking sleep function
- Refactor into minDuration func

Co-authored-by: Julian Brost <julian@0x4a42.net>
2023-04-07 16:24:14 +02:00

83 lines
1.8 KiB
Go

package main
import (
"context"
"github.com/restic/restic/internal/errors"
"github.com/restic/restic/internal/index"
"github.com/restic/restic/internal/restic"
"github.com/spf13/cobra"
)
var cmdList = &cobra.Command{
Use: "list [flags] [blobs|packs|index|snapshots|keys|locks]",
Short: "List objects in the repository",
Long: `
The "list" command allows listing objects in the repository based on type.
EXIT STATUS
===========
Exit status is 0 if the command was successful, and non-zero if there was any error.
`,
DisableAutoGenTag: true,
RunE: func(cmd *cobra.Command, args []string) error {
return runList(cmd.Context(), cmd, globalOptions, args)
},
}
func init() {
cmdRoot.AddCommand(cmdList)
}
func runList(ctx context.Context, cmd *cobra.Command, gopts GlobalOptions, args []string) error {
if len(args) != 1 {
return errors.Fatal("type not specified, usage: " + cmd.Use)
}
repo, err := OpenRepository(ctx, gopts)
if err != nil {
return err
}
if !gopts.NoLock && args[0] != "locks" {
var lock *restic.Lock
lock, ctx, err = lockRepo(ctx, repo, gopts.RetryLock, gopts.JSON)
defer unlockRepo(lock)
if err != nil {
return err
}
}
var t restic.FileType
switch args[0] {
case "packs":
t = restic.PackFile
case "index":
t = restic.IndexFile
case "snapshots":
t = restic.SnapshotFile
case "keys":
t = restic.KeyFile
case "locks":
t = restic.LockFile
case "blobs":
return index.ForAllIndexes(ctx, repo, func(id restic.ID, idx *index.Index, oldFormat bool, err error) error {
if err != nil {
return err
}
idx.Each(ctx, func(blobs restic.PackedBlob) {
Printf("%v %v\n", blobs.Type, blobs.ID)
})
return nil
})
default:
return errors.Fatal("invalid type")
}
return repo.List(ctx, t, func(id restic.ID, size int64) error {
Printf("%s\n", id)
return nil
})
}