atomicfile

func WriteFile ¶

func WriteFile(filename string, r io.Reader, mode os.FileMode) (err error)

WriteFile atomically writes the contents of r to the specified filepath with the given mode. This is a copy of https://github.com/natefinch/atomic/blob/master/atomic.go with minor modifications allowing to set mode of the written file. If the file already exists, its mode is preserved.