restic/cmd/restic/cmd_ls.go
2015-02-17 22:37:34 +01:00

92 lines
1.9 KiB
Go

package main
import (
"fmt"
"os"
"path/filepath"
"github.com/restic/restic"
"github.com/restic/restic/backend"
)
type CmdLs struct{}
func init() {
_, err := parser.AddCommand("ls",
"list files",
"The ls command lists all files and directories in a snapshot",
&CmdLs{})
if err != nil {
panic(err)
}
}
func print_node(prefix string, n *restic.Node) string {
switch n.Type {
case "file":
return fmt.Sprintf("%s %5d %5d %6d %s %s",
n.Mode, n.UID, n.GID, n.Size, n.ModTime, filepath.Join(prefix, n.Name))
case "dir":
return fmt.Sprintf("%s %5d %5d %6d %s %s",
n.Mode|os.ModeDir, n.UID, n.GID, n.Size, n.ModTime, filepath.Join(prefix, n.Name))
case "symlink":
return fmt.Sprintf("%s %5d %5d %6d %s %s -> %s",
n.Mode|os.ModeSymlink, n.UID, n.GID, n.Size, n.ModTime, filepath.Join(prefix, n.Name), n.LinkTarget)
default:
return fmt.Sprintf("<Node(%s) %s>", n.Type, n.Name)
}
}
func print_tree(prefix string, s restic.Server, blob restic.Blob) error {
tree, err := restic.LoadTree(s, blob.Storage)
if err != nil {
return err
}
for _, entry := range tree.Nodes {
fmt.Println(print_node(prefix, entry))
if entry.Type == "dir" && entry.Subtree != nil {
b, err := tree.Map.FindID(entry.Subtree)
if err != nil {
return err
}
err = print_tree(filepath.Join(prefix, entry.Name), s, b)
if err != nil {
return err
}
}
}
return nil
}
func (cmd CmdLs) Usage() string {
return "snapshot-ID [DIR]"
}
func (cmd CmdLs) Execute(args []string) error {
if len(args) < 1 || len(args) > 2 {
return fmt.Errorf("wrong number of arguments, Usage: %s", cmd.Usage())
}
s, err := OpenRepo()
if err != nil {
return err
}
id, err := backend.FindSnapshot(s, args[0])
if err != nil {
return err
}
sn, err := restic.LoadSnapshot(s, id)
if err != nil {
return err
}
fmt.Printf("snapshot of %s at %s:\n", sn.Dir, sn.Time)
return print_tree("", s, sn.Tree)
}