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|
package main
import (
"context"
"encoding/json"
"github.com/spf13/cobra"
"github.com/restic/restic/internal/backend"
"github.com/restic/restic/internal/errors"
"github.com/restic/restic/internal/repository"
"github.com/restic/restic/internal/restic"
)
var cmdCat = &cobra.Command{
Use: "cat [flags] [pack|blob|snapshot|index|key|masterkey|config|lock] ID",
Short: "Print internal objects to stdout",
Long: `
The "cat" command is used to print internal objects to stdout.
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 runCat(cmd.Context(), globalOptions, args)
},
}
func init() {
cmdRoot.AddCommand(cmdCat)
}
func runCat(ctx context.Context, gopts GlobalOptions, args []string) error {
if len(args) < 1 || (args[0] != "masterkey" && args[0] != "config" && len(args) != 2) {
return errors.Fatal("type or ID not specified")
}
repo, err := OpenRepository(ctx, gopts)
if err != nil {
return err
}
if !gopts.NoLock {
var lock *restic.Lock
lock, ctx, err = lockRepo(ctx, repo)
defer unlockRepo(lock)
if err != nil {
return err
}
}
tpe := args[0]
var id restic.ID
if tpe != "masterkey" && tpe != "config" && tpe != "snapshot" {
id, err = restic.ParseID(args[1])
if err != nil {
return errors.Fatalf("unable to parse ID: %v\n", err)
}
}
switch tpe {
case "config":
buf, err := json.MarshalIndent(repo.Config(), "", " ")
if err != nil {
return err
}
Println(string(buf))
return nil
case "index":
buf, err := repo.LoadUnpacked(ctx, restic.IndexFile, id, nil)
if err != nil {
return err
}
Println(string(buf))
return nil
case "snapshot":
sn, err := restic.FindSnapshot(ctx, repo.Backend(), repo, args[1])
if err != nil {
return errors.Fatalf("could not find snapshot: %v\n", err)
}
buf, err := json.MarshalIndent(sn, "", " ")
if err != nil {
return err
}
Println(string(buf))
return nil
case "key":
key, err := repository.LoadKey(ctx, repo, id)
if err != nil {
return err
}
buf, err := json.MarshalIndent(&key, "", " ")
if err != nil {
return err
}
Println(string(buf))
return nil
case "masterkey":
buf, err := json.MarshalIndent(repo.Key(), "", " ")
if err != nil {
return err
}
Println(string(buf))
return nil
case "lock":
lock, err := restic.LoadLock(ctx, repo, id)
if err != nil {
return err
}
buf, err := json.MarshalIndent(&lock, "", " ")
if err != nil {
return err
}
Println(string(buf))
return nil
case "pack":
h := restic.Handle{Type: restic.PackFile, Name: id.String()}
buf, err := backend.LoadAll(ctx, nil, repo.Backend(), h)
if err != nil {
return err
}
hash := restic.Hash(buf)
if !hash.Equal(id) {
Warnf("Warning: hash of data does not match ID, want\n %v\ngot:\n %v\n", id.String(), hash.String())
}
_, err = globalOptions.stdout.Write(buf)
return err
case "blob":
err = repo.LoadIndex(ctx)
if err != nil {
return err
}
for _, t := range []restic.BlobType{restic.DataBlob, restic.TreeBlob} {
bh := restic.BlobHandle{ID: id, Type: t}
if !repo.Index().Has(bh) {
continue
}
buf, err := repo.LoadBlob(ctx, t, id, nil)
if err != nil {
return err
}
_, err = globalOptions.stdout.Write(buf)
return err
}
return errors.Fatal("blob not found")
default:
return errors.Fatal("invalid type")
}
}
|
