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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright 1999-2017 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, x) for x in ('pylint',)]

  return ret


def main(argv):
  """The main entry point"""
  source_root = 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__':
  sys.exit(main(sys.argv[1:]))