rebuild-ipod.py 文件源码

def get_newname(path):
        def conv_char(ch):
            safe_char = string.ascii_letters + string.digits + "-_"
            if ch in safe_char:
                return ch
            return "_"
        #
        if path == ".":
            return path
        dirname, basename = os.path.split(path)
        base, ext = os.path.splitext(basename)
        newbase = "".join(map(conv_char, base))
        if basename == newbase+ext:
            return os.path.join(dirname, basename)
        if os.path.exists("%s/%s%s" % (dirname, newbase, ext)):
            i = 0
            while os.path.exists("%s/%s_%d%s" % (dirname, newbase, i, ext)):
                i += 1
            newbase += "_%d" % i
        newname = "%s/%s%s" % (dirname, newbase, ext)
        return newname