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#!/usr/bin/python
# coding: utf-8
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#
# 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.
'''Transform PKGBUILD into JSON'''
import argparse
import json
import logging
import os
import subprocess
import sys
def parse_argv():
'''Parse command line arguments'''
parser = argparse.ArgumentParser()
parser.add_argument("--env", action="store_true",
help="print env into JSON")
parser.add_argument("PKGBUILD", nargs="?", default="PKGBUILD")
return parser.parse_args()
def pkgbuild2json(path):
'''Print shell variable of a PKGBUILD'''
# check PKGBUILD can be openned
try:
open(path, "r")
except IOError as exp:
errmsg = "Unable to open %s: %s" % (path, exp)
logging.error(errmsg)
exit(1)
# use bash to export vars.
# WARNING: CODE IS EXECUTED
argv = ["bash", "-c",
"set -a; source '%s'; exec '%s' --env" % (path, sys.argv[0])]
proc = subprocess.Popen(argv, stdout=subprocess.PIPE, shell=False)
stdout = proc.communicate("")[0]
proc.wait()
jpkgbuild = json.loads(stdout.decode())
# remove original env variables
for i in os.environ.keys():
jpkgbuild.pop(i, "")
return json.dumps(jpkgbuild)
def main():
'''Program entry point'''
# parser cmdline
args = parse_argv()
# print env into json
if args.env:
print(json.dumps(dict(os.environ.items())))
else:
print(pkgbuild2json(args.PKGBUILD))
return 0
if __name__ == '__main__':
main()
# vim:set ts=4 sw=4 et ai: