filepath.py 文件源码

def moveTo(self, destination):
        try:
            os.rename(self.path, destination.path)
            self.restat(False)
        except OSError, ose:
            if ose.errno == errno.EXDEV:
                # man 2 rename, ubuntu linux 5.10 "breezy":

                #   oldpath and newpath are not on the same mounted filesystem.
                #   (Linux permits a filesystem to be mounted at multiple
                #   points, but rename(2) does not work across different mount
                #   points, even if the same filesystem is mounted on both.)

                # that means it's time to copy trees of directories!
                secsib = destination.temporarySibling()
                self.copyTo(secsib) # slow
                secsib.moveTo(destination) # visible

                # done creating new stuff.  let's clean me up.
                mysecsib = self.temporarySibling()
                self.moveTo(mysecsib) # visible
                mysecsib.remove() # slow
            else:
                raise