// ctime gets file's change time in UNIX Nano format.
func ctime(fi os.FileInfo) int64 {
if tspec := times.Get(fi); tspec.HasChangeTime() {
return tspec.ChangeTime().UnixNano()
}
return 0
}
// Clean (remove) files in `md+"/tmp/"` not accessed in the last 36
// hours.
func (md Maildir) Clean() error {
dir, err := os.Open(string(md) + "/tmp")
if err != nil {
return err
}
fileinfos, err := dir.Readdir(0)
if err != nil {
return err
}
for _, fileinfo := range fileinfos {
if strings.HasPrefix(fileinfo.Name(), ".") {
continue
}
atime := times.Get(fileinfo).AccessTime()
if time.Since(atime) > (36 * time.Hour) {
path := string(md) + "/tmp/" + fileinfo.Name()
err1 := syscall.Unlink(path)
if err1 != nil {
err = &os.PathError{Op: "unlink", Path: path, Err: err1}
}
}
}
return err
}