Issue 2456 - [cms] Use logging module

cms/bin/generate_static_pages.py

 # coding: utf-8
 
 # This file is part of the Adblock Plus web scripts,
 # Copyright (C) 2006-2015 Eyeo GmbH
 #
 # Adblock Plus is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License version 3 as
 # published by the Free Software Foundation.
 #
 # Adblock Plus 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 Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
 
-import sys, os, re, errno, codecs
+import sys, os, re, errno, codecs, logging
 from ..utils import process_page
 from ..sources import MercurialSource
 
 def memoize(func):
   memoized = {}
   def wrapper(*args):
     try:
       return memoized[args]
     except KeyError:
       return memoized.setdefault(args, func(*args))
   return wrapper
 
 def generate_pages(repo, output_dir):
   known_files = set()
 
   def write_file(path_parts, contents, binary=False):
     encoding = None if binary else "utf-8"
     outfile = os.path.join(output_dir, *path_parts)
     if outfile in known_files:
-      print >>sys.stderr, "Warning: File %s has multiple sources" % outfile
+      logging.warning("File %s has multiple sources", outfile)
       return
     known_files.add(outfile)
 
     if os.path.exists(outfile):
       with codecs.open(outfile, "rb", encoding=encoding) as handle:
         if handle.read() == contents:
           return
 
     try:
       os.makedirs(os.path.dirname(outfile))
@@ skipping 51 matching lines @@
           os.rmdir(path)
   remove_unknown(output_dir)
 
 if __name__ == "__main__":
   if len(sys.argv) < 3:
     print >>sys.stderr, "Usage: %s source_repository output_dir" % sys.argv[0]
     sys.exit(1)
 
   repo, output_dir = sys.argv[1:3]
   generate_pages(repo, output_dir)