Add input_api.logging.

presubmit_canned_checks.py

 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Generic presubmit checks that can be reused by other presubmit checks."""
 
 
 ### Description checks
 
 def CheckChangeHasTestField(input_api, output_api):
@@ skipping 582 matching lines @@
   import warnings
   warnings.filterwarnings('ignore', category=DeprecationWarning)
   try:
     files = _FetchAllFiles(input_api, white_list, black_list)
     if not files:
       return []
     # Now that at least one python file was modified and all the python files
     # were listed, try to run pylint.
     try:
       from pylint import lint
+      input_api.logging.debug(
+          'Using pylint v%s from %s' % (lint.version, lint.__file__))
     except ImportError:
       if input_api.platform == 'win32':
         return [output_api.PresubmitNotifyResult(
           'Warning: Can\'t run pylint because it is not installed. Please '
           'install manually\n'
           'Cannot do static analysis of python files.')]
       return [output_api.PresubmitError(
           'Please install pylint with "sudo apt-get install python-setuptools; '
           'sudo easy_install pylint"\n'
           'or visit http://pypi.python.org/pypi/setuptools.\n'
@@ skipping 295 matching lines @@
     results.extend(input_api.canned_checks.CheckChangeSvnEolStyle(
         input_api, output_api, source_file_filter=text_files))
     snapshot("checking svn mime types")
     results.extend(input_api.canned_checks.CheckSvnForCommonMimeTypes(
         input_api, output_api))
     snapshot("checking license")
     results.extend(input_api.canned_checks.CheckLicense(
         input_api, output_api, license_header, source_file_filter=sources))
   snapshot("done")
   return results