restic/snapshot.go

81 lines
1.5 KiB
Go

package restic
import (
"fmt"
"os"
"os/user"
"path/filepath"
"strconv"
"time"
"github.com/restic/restic/backend"
)
type Snapshot struct {
Time time.Time `json:"time"`
Parent backend.ID `json:"parent,omitempty"`
Tree backend.ID `json:"tree"`
Map backend.ID `json:"map"`
Dir string `json:"dir"`
Hostname string `json:"hostname,omitempty"`
Username string `json:"username,omitempty"`
UID uint32 `json:"uid,omitempty"`
GID uint32 `json:"gid,omitempty"`
id backend.ID // plaintext ID, used during restore
bl *BlobList
}
func NewSnapshot(dir string) (*Snapshot, error) {
d, err := filepath.Abs(dir)
if err != nil {
d = dir
}
sn := &Snapshot{
Dir: d,
Time: time.Now(),
}
hn, err := os.Hostname()
if err == nil {
sn.Hostname = hn
}
usr, err := user.Current()
if err == nil {
sn.Username = usr.Username
uid, err := strconv.ParseInt(usr.Uid, 10, 32)
if err != nil {
return nil, err
}
sn.UID = uint32(uid)
gid, err := strconv.ParseInt(usr.Gid, 10, 32)
if err != nil {
return nil, err
}
sn.GID = uint32(gid)
}
return sn, nil
}
func LoadSnapshot(ch *ContentHandler, id backend.ID) (*Snapshot, error) {
sn := &Snapshot{id: id}
err := ch.LoadJSON(backend.Snapshot, id, sn)
if err != nil {
return nil, err
}
return sn, nil
}
func (sn Snapshot) String() string {
return fmt.Sprintf("<Snapshot %q at %s>", sn.Dir, sn.Time)
}
func (sn Snapshot) ID() backend.ID {
return sn.id
}