#!/usr/bin/python3
# encoding: utf-8
#
# Copyright (C) 2018 Karl Linden <karl.j.linden@gmail.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#

import os


def get_subdirs(ctx):
    """
    Get the compatibility module subirectories.

    The compat modules are found dynamically so that this script does
    not have to be modified if more modules are added.

    :param ctx: the waf context
    :type ctx: waflib.Context.Context
    :returns: list of str -- the subdirectories
    """
    subdirs = []
    for entry in ctx.path.listdir():
        path = os.path.join(ctx.path.abspath(), entry)
        if os.path.isdir(path) and not entry.startswith('.'):
            subdirs.append(entry)
    return subdirs


def recurse_into_subdirs(ctx):
    """
    Recurse into compatibility module subdirectories.

    :param ctx: the waf context
    :type ctx: waflib.Context.Context
    """
    for x in get_subdirs(ctx):
        ctx.recurse(x)


def options(opt):
    recurse_into_subdirs(opt)


def configure(conf):
    recurse_into_subdirs(conf)


def build(bld):
    recurse_into_subdirs(bld)
