Checks for Gentoo Linux USE flags.

checkuse.py

#! /bin/env python3
# -*-mode:python;coding:utf-8;-*-

"""
checkuse.py

@author hanepjiv <hanepjiv@gmail.com>
@since 2015/04/06
@date 2017/12/07
"""

# #############################################################################
# The MIT License (MIT)
#
# Copyright (c) <2015> hanepjiv <hanepjiv@gmail.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.

# #############################################################################
# =============================================================================
CURRENT                  = 1
AGE                      = 0
REVISION                 = 0
# =============================================================================
MAJOR                    = CURRENT - AGE
VERSION                  = '{}.{}.{}'.format(MAJOR, AGE, REVISION)
# =============================================================================
PATH_MAKE_CONF           = "/etc/portage/make.conf"
PATH_USE_DESC            = "/usr/portage/profiles/use.desc"
PATH_USE_LOCAL_DESC      = "/usr/portage/profiles/use.local.desc"
# =============================================================================
class bcolors:
    HEADER               = '\033[95m'
    OKBLUE               = '\033[94m'
    OKGREEN              = '\033[92m'
    WARNING              = '\033[93m'
    FAIL                 = '\033[91m'
    ENDC                 = '\033[0m'
    BOLD                 = '\033[1m'
    UNDERLINE            = '\033[4m'
# #############################################################################
# =============================================================================
import sys
import os
import subprocess
import re
# #############################################################################
# =============================================================================
class CheckUSE:
    """
    """
    # =========================================================================
    def __init__(self, *a_args, **a_kwds):
        """
        """
        self.__dict__.update(a_kwds)
    # =========================================================================
    def check(self, args):
        """
        """
        # ---------------------------------------------------------------------
        use_desc         = {}
        for l in open(PATH_USE_DESC):
            d = re.split(" - ", l)
            if 2 is len(d):
                use_desc[d[0].strip()] = d[1].strip()
        # ---------------------------------------------------------------------
        use_local_desc   = {}
        for l in open(PATH_USE_LOCAL_DESC):
            d = re.split(" - ", l)
            if 2 is len(d):
                k = re.split(":", d[0].strip())
                use_local_desc[k[1].strip()] = (d[1].strip(), k[0].strip())
        # ---------------------------------------------------------------------
        print("emerge --info")
        info = str(subprocess.check_output(['emerge', '--info']))
        use  = re.search('USE=\"([^\"]*)', info).group(1)
        uses = re.split("\s+", use.strip().replace(os.linesep, " "))
        # ---------------------------------------------------------------------
        global_use  = []
        local_use   = []
        unknown_use = []
        for u in uses:
            if   u in use_desc.keys():
                global_use.append(u)
            elif u in use_local_desc.keys():
                local_use.append(u)
            else:
                unknown_use.append(u)
        # ---------------------------------------------------------------------
        for u in global_use:
            print("{0}global  {2}{1} {3}".format(
                bcolors.OKGREEN,
                bcolors.ENDC,
                u,
                use_desc[u]))
        for u in local_use:
            print("{0}local   {2}{1} {4}{5}{1} {3}".format(
                bcolors.WARNING,
                bcolors.ENDC,
                u,
                use_local_desc[u][0],
                bcolors.OKBLUE,
                use_local_desc[u][1]))
        for u in unknown_use:
            print("{0}unknown {2}{1}".format(
                bcolors.FAIL,
                bcolors.ENDC,
                u))

        return 0
# #############################################################################
# =============================================================================
def _parse_args_():
    # -------------------------------------------------------------------------
    import argparse
    # -------------------------------------------------------------------------
    parser = argparse.ArgumentParser()
    parser.add_argument('-V', '--version', action='version', version=VERSION)

    return parser.parse_args()
# =============================================================================
if __name__ == '__main__':
    exit(CheckUSE().check(_parse_args_()))