#! /usr/bin/env python
##
## vi:ts=4:et
##
##---------------------------------------------------------------------------##
##  Author:
##      Markus F.X.J. Oberhumer <markus@oberhumer.com>
##  Copyright:
##      Distributed under the terms of the GNU General Public License.
##  Description:
##      List files. See ls(1).
##  Usage:
##      python ls_subdirs dirs...
##---------------------------------------------------------------------------##


import getopt, os, re, stat, sys


# /***********************************************************************
# //
# ************************************************************************/

opts = {
    "all":          0,
    "abspath":      0,
    "basename":     0,
    "normcase":     0,
    "normpath":     0,
}


def ls(dir):
    if not os.path.isdir(dir):
        return
    #
    files = os.listdir(dir)
    files.sort()
    for f in files:
        if not f or f == "." or f == "..":
            continue
        if f[0] == "." and not opts.get("all"):
            continue
        if dir == ".":
            relname = f
        else:
            relname = os.path.join(dir, f)
        st = os.lstat(relname)
        #
        # check file type
        #
        if not os.path.isdir(relname):
            continue
        #
        # print
        #
        if opts.get("abspath"):
            p = os.path.abspath(relname)
        elif opts.get("basename"):
            p = os.path.basename(relname)
            assert p == f
        else:
            p = relname
        if opts.get("normpath"):
            p = os.path.normpath(p)
        if opts.get("normcase"):
            p = os.path.normcase(p)
        print p


# /***********************************************************************
# //
# ************************************************************************/

def main(argv):
    longopts = opts.keys()
    longopts.sort()
    xopts, xargs = getopt.getopt(argv[1:], "", longopts)
    ##print xopts, xargs
    for o, a in xopts:
        if o[:2] == "--":
            o = o[2:]
        assert o
        ##print o, a
        if not a: a = 1
        opts[o] = a
    if not xargs:
        xargs = ["."]
    for arg in xargs:
        ls(arg)
    return 0


if __name__ == "__main__":
    sys.exit(main(sys.argv))