forked from TrueCloudLab/restic
2e7b40baca
We ignore parser errors on Uid/Gid, since they are not numbers on Windows. UID/GID is usually 'root' on Linux, so I am not sure if 0/0 is a good idea. Maybe if the type of the fields were changed from uint32 to int, we could set it to -1 to indicate "no value".
100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
package restic
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
"os/user"
|
|
"path/filepath"
|
|
"strconv"
|
|
"time"
|
|
|
|
"github.com/restic/restic/backend"
|
|
"github.com/restic/restic/repository"
|
|
)
|
|
|
|
type Snapshot struct {
|
|
Time time.Time `json:"time"`
|
|
Parent *backend.ID `json:"parent,omitempty"`
|
|
Tree *backend.ID `json:"tree"`
|
|
Paths []string `json:"paths"`
|
|
Hostname string `json:"hostname,omitempty"`
|
|
Username string `json:"username,omitempty"`
|
|
UID uint32 `json:"uid,omitempty"`
|
|
GID uint32 `json:"gid,omitempty"`
|
|
Excludes []string `json:"excludes,omitempty"`
|
|
|
|
id *backend.ID // plaintext ID, used during restore
|
|
}
|
|
|
|
func NewSnapshot(paths []string) (*Snapshot, error) {
|
|
for i, path := range paths {
|
|
if p, err := filepath.Abs(path); err != nil {
|
|
paths[i] = p
|
|
}
|
|
}
|
|
|
|
sn := &Snapshot{
|
|
Paths: paths,
|
|
Time: time.Now(),
|
|
}
|
|
|
|
hn, err := os.Hostname()
|
|
if err == nil {
|
|
sn.Hostname = hn
|
|
}
|
|
|
|
err = sn.fillUserInfo()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return sn, nil
|
|
}
|
|
|
|
func LoadSnapshot(repo *repository.Repository, id backend.ID) (*Snapshot, error) {
|
|
sn := &Snapshot{id: &id}
|
|
err := repo.LoadJSONUnpacked(backend.Snapshot, id, sn)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return sn, nil
|
|
}
|
|
|
|
func (sn Snapshot) String() string {
|
|
return fmt.Sprintf("<Snapshot of %v at %s>", sn.Paths, sn.Time)
|
|
}
|
|
|
|
func (sn Snapshot) ID() *backend.ID {
|
|
return sn.id
|
|
}
|
|
|
|
func (sn *Snapshot) fillUserInfo() error {
|
|
usr, err := user.Current()
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
sn.Username = usr.Username
|
|
|
|
// We ignore the error. On Windows Uid is not a number
|
|
uid, _ := strconv.ParseInt(usr.Uid, 10, 32)
|
|
sn.UID = uint32(uid)
|
|
|
|
// We ignore the error. On Windows Gid is not a number
|
|
gid, _ := strconv.ParseInt(usr.Gid, 10, 32)
|
|
sn.GID = uint32(gid)
|
|
|
|
return nil
|
|
}
|
|
|
|
// FindSnapshot takes a string and tries to find a snapshot whose ID matches
|
|
// the string as closely as possible.
|
|
func FindSnapshot(repo *repository.Repository, s string) (backend.ID, error) {
|
|
// find snapshot id with prefix
|
|
name, err := backend.Find(repo.Backend(), backend.Snapshot, s)
|
|
if err != nil {
|
|
return backend.ID{}, err
|
|
}
|
|
|
|
return backend.ParseID(name)
|
|
}
|