#!/usr/bin/python
# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

"""Run pylint with the right settings."""

from __future__ import print_function

import os
import sys


def find_all_modules(source_root):
	"""Locate all python modules in the tree for scanning"""
	ret = []

	for root, _dirs, files in os.walk(source_root, topdown=False):
		# Add all of the .py modules in the tree.
		ret += [os.path.join(root, x) for x in files if x.endswith('.py')]

	# Add the main scripts that don't end in .py.
	ret += [os.path.join(source_root, 'bin', x) for x in ('catalyst', 'pylint')]

	return ret


def main(argv):
	"""The main entry point"""
	source_root = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))

	if not argv:
		argv = find_all_modules(source_root)

	pympath = source_root
	pythonpath = os.environ.get('PYTHONPATH')
	if pythonpath is None:
		pythonpath = pympath
	else:
		pythonpath = pympath + ':' + pythonpath
	os.environ['PYTHONPATH'] = pythonpath

	pylintrc = os.path.join(source_root, '.pylintrc')
	cmd = ['pylint', '--rcfile', pylintrc]
	os.execvp(cmd[0], cmd + argv)


if __name__ == '__main__':
	main(sys.argv[1:])