// Snapshots returns the current snapshots on the volume (sorted by date)
func (c *BtrfsConn) Snapshots() ([]string, error) {
c.Lock()
defer c.Unlock()
glog.V(2).Infof("listing snapshots of volume:%v and c.name:%s ", c.root, c.name)
output, err := runcmd(c.sudoer, "subvolume", "list", "-s", c.root)
if err != nil {
glog.Errorf("Could not list subvolumes of %s: %s", c.root, err)
return nil, err
}
var files []os.FileInfo
for _, line := range strings.Split(string(output), "\n") {
glog.V(2).Infof("line: %s", line)
if parts := strings.Split(line, "path"); len(parts) == 2 {
label := strings.TrimSpace(parts[1])
label = strings.TrimPrefix(label, "volumes/")
glog.V(2).Infof("looking for tenant:%s in label:'%s'", c.name, label)
if strings.HasPrefix(label, c.name+"_") {
file, err := os.Stat(filepath.Join(c.root, label))
if err != nil {
glog.Errorf("Could not stat snapshot %s: %s", label, err)
return nil, err
}
files = append(files, file)
glog.V(2).Infof("found snapshot:%s", label)
}
}
}
return volume.FileInfoSlice(files).Labels(), nil
}
// Snapshots returns the current snapshots on the volume
func (c *RsyncConn) Snapshots() ([]string, error) {
c.Lock()
defer c.Unlock()
files, err := ioutil.ReadDir(c.root)
if err != nil {
return nil, err
}
var labels []os.FileInfo
for _, file := range files {
if file.IsDir() {
if strings.HasPrefix(file.Name(), c.name+"_") {
labels = append(labels, file)
}
}
}
return volume.FileInfoSlice(labels).Labels(), nil
}
