restic/snapshot.go

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package khepri
import (
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"fmt"
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"os"
"os/user"
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"path/filepath"
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"time"
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"github.com/fd0/khepri/backend"
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)
type Snapshot struct {
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Time time.Time `json:"time"`
Content backend.ID `json:"content"`
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Map backend.ID `json:"map"`
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Dir string `json:"dir"`
Hostname string `json:"hostname,omitempty"`
Username string `json:"username,omitempty"`
UID string `json:"uid,omitempty"`
GID string `json:"gid,omitempty"`
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id backend.ID // plaintext ID, used during restore
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bl *BlobList
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}
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func NewSnapshot(dir string) *Snapshot {
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d, err := filepath.Abs(dir)
if err != nil {
d = dir
}
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sn := &Snapshot{
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Dir: d,
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Time: time.Now(),
}
hn, err := os.Hostname()
if err == nil {
sn.Hostname = hn
}
usr, err := user.Current()
if err == nil {
sn.Username = usr.Username
sn.UID = usr.Uid
sn.GID = usr.Gid
}
return sn
}
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func LoadSnapshot(ch *ContentHandler, id backend.ID) (*Snapshot, error) {
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sn := &Snapshot{}
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err := ch.LoadJSON(backend.Snapshot, id, sn)
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if err != nil {
return nil, err
}
return sn, nil
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}
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func (sn *Snapshot) String() string {
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return fmt.Sprintf("<Snapshot %q at %s>", sn.Dir, sn.Time)
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}