Move pacman function into a pacman module

EXTRA_DIST = __init__.py.in

archversion_PYTHON =  __init__.py config.py version.py database.py error.py

archversion_PYTHON =  __init__.py config.py version.py database.py error.py pacman.py

do_substitution = sed -e 's,[@]pythondir[@],$(pythondir),g' \

	-e 's,[@]PACKAGE[@],$(PACKAGE),g' \

# coding: utf-8

# archversion - Archlinux Version Controller

# Copyright © 2012 Sébastien Luttringer

#

# 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, or (at your option) any later version.

#

# 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

'''PKGBUILD Module'''

import logging

import os

import subprocess

def parse_pkgbuild(path, shell="bash"):

    '''

    Source variable from a PKGBUILD

    Use bash to export vars

    WARNING: CODE IS EXECUTED

    '''

    # use shell sourcing to resolve custom bashism into PKGBUILD

    argv = [shell, "-c", "set -a; source '%s'; exec printenv -0" % path]

    # Log it as warn because it's dangerous

    logging.warn("Running bash to source file %s" % path)

    proc = subprocess.Popen(argv, stdout=subprocess.PIPE, shell=False)

    bashout = proc.communicate("")[0].decode().split("\0")

    bashenv = dict([x.split("=", 1) for x in bashout if "=" in x])

    # remove current env

    for env in os.environ:

        bashenv.pop(env, None)

    return bashenv

# vim:set ts=4 sw=4 et ai:

from archversion import USER_AGENT

from archversion.pacman import parse_pkgbuild

from archversion.error import InvalidConfigFile, VersionNotFound

from urllib.request import urlopen, Request

import json

                if os.path.isfile(pkgpath):

                    # use bash to export vars.

                    # WARNING: CODE IS EXECUTED

                    argv = ["bash", "-c", "set -a; source '%s'; exec printenv -0" % pkgpath]

                    logging.debug("Bash sourcing of file %s" % pkgpath)

                    proc = subprocess.Popen(argv, stdout=subprocess.PIPE, shell=False)

                    envlist = proc.communicate("")[0].decode().split("\0")

                    envdict = dict([x.split("=", 1) for x in envlist if "=" in x])

                    if "pkgver" in envdict:

                        v = envdict["pkgver"]

                    pkgdict = parse_pkgbuild(pkgpath)

                    if "pkgver" in pkgdict:

                        v = pkgdict["pkgver"]

                        logging.debug("ABS version is : %s" % v)

                        return v

        raise VersionNotFound("No ABS package found")