// Save writes config data in JSON format to a file.
func (d config) Save(filename string) (err error) {
d.lock.Lock()
defer d.lock.Unlock()
jsonData, err := json.MarshalIndent(d.data, "", "\t")
if err != nil {
return iodine.New(err, nil)
}
file, err := atomic.FileCreate(filename)
if err != nil {
return iodine.New(err, nil)
}
if runtime.GOOS == "windows" {
jsonData = []byte(strings.Replace(string(jsonData), "\n", "\r\n", -1))
}
_, err = file.Write(jsonData)
if err != nil {
return iodine.New(err, nil)
}
if err := file.Close(); err != nil {
return iodine.New(err, nil)
}
return nil
}
// CreateFile - create a file inside disk root path, replies with custome disk.File which provides atomic writes
func (disk Disk) CreateFile(filename string) (*atomic.File, error) {
disk.lock.Lock()
defer disk.lock.Unlock()
if filename == "" {
return nil, iodine.New(InvalidArgument{}, nil)
}
f, err := atomic.FileCreate(filepath.Join(disk.path, filename))
if err != nil {
return nil, iodine.New(err, nil)
}
return f, nil
}