old_contents: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  #
  #  IkaLog
  #  ======
  #  Copyright (C) 2015 Takeshi HASEGAWA, Junki MIZUSHIMA
  #
  #  Licensed under the Apache License, Version 2.0 (the "License");
  #  you may not use this file except in compliance with the License.
  #  You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  #  Unless required by applicable law or agreed to in writing, software
  #  distributed under the License is distributed on an "AS IS" BASIS,
  #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #  See the License for the specific language governing permissions and
  #  limitations under the License.
  #
  
  from subprocess import Popen, PIPE
  import re
  
  def __get_ikalog_version():
      try:
          commit_id = Popen(["git", "rev-parse", "--short", "HEAD"], stdout=PIPE).communicate()[0].decode('utf-8')
          version = re.sub(r'\s+', r'', commit_id)
          if version == '':
              return 'unknown'
          return version
      except:
          return 'unknown'
  
  IKALOG_VERSION =  __get_ikalog_version()
  
new_contents: #!/usr/bin/env python3
  # -*- coding: utf-8 -*-
  #
  #  IkaLog
  #  ======
  #  Copyright (C) 2015 Takeshi HASEGAWA, Junki MIZUSHIMA
  #
  #  Licensed under the Apache License, Version 2.0 (the "License");
  #  you may not use this file except in compliance with the License.
  #  You may obtain a copy of the License at
  #
  #      http://www.apache.org/licenses/LICENSE-2.0
  #
  #  Unless required by applicable law or agreed to in writing, software
  #  distributed under the License is distributed on an "AS IS" BASIS,
  #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  #  See the License for the specific language governing permissions and
  #  limitations under the License.
  #
  
  import platform
  import re
  from subprocess import Popen, PIPE
  
  def __get_ikalog_revision():
      try:
          commit_id = Popen(['git', 'rev-parse', '--short', 'HEAD'], stdout=PIPE).communicate()[0].decode('utf-8')
          version = re.sub(r'\s+', r'', commit_id)
          if version == '':
              return 'unknown'
          return version
      except:
          return 'unknown'
  
  def __get_ikalog_version():
      return '%s (%s)' % (__get_ikalog_revision(), platform.system())
  
  IKALOG_VERSION =  __get_ikalog_version()
  
  if __name__ == '__main__':
      print(IKALOG_VERSION)
  
subject: Include platform type. Added unit test mode.