old_contents: #!/usr/bin/env python
  # vim: set expandtab sw=4 ts=4:
  #
  # Generates a trend (graph) from the buildtimes in buildtimes.xml
  #
  # usage : generate_trend.py -h --trend=native
  #
  # Copyright (C) 2014 Dieter Adriaenssens <ruleant@users.sourceforge.net>
  #
  # This file is part of buildtime-trend
  # <https://github.com/ruleant/buildtime-trend/>
  #
  # This program is free software: you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # any later version.
  #
  # This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
  
  import os
  import sys
  import getopt
  
  
  def generate_trend(argv):
      # process arguments
      usage_string = 'generate_trend.py -h --trend=native'
      try:
          opts, args = getopt.getopt(argv, "h", ["trend=", "help"])
      except getopt.GetoptError:
          print usage_string
          sys.exit(2)
  
      #check options
      for opt, arg in opts:
          if opt in ('-h', "--help"):
              print usage_string
              sys.exit()
          elif opt == "--trend":
              if arg == "native":
                  trend_native()
  
      # run trend_keen() always,
      # if $KEEN_PROJECT_ID variable is set (checked later), it will be executed
      trend_keen()
  
  
  def trend_native():
      from buildtimetrend.trend import Trend
      # use parameter for timestamps file and check if file exists
      RESULT_FILE = os.getenv('BUILD_TREND_OUTPUTFILE', 'trends/buildtimes.xml')
      GRAPH_FILE = os.getenv('BUILD_TREND_TRENDFILE', 'trends/trend.png')
  
      trend = Trend()
      if trend.gather_data(RESULT_FILE):
          # print number of builds and list of buildnames
          print 'Builds ({}) :'.format(len(trend.builds)), trend.builds
          print 'Stages ({}) :'.format(len(trend.stages)), trend.stages
          trend.generate(GRAPH_FILE)
  
  
  def trend_keen():
      from buildtimetrend.keenio import generate_overview_config_file
  
      # TODO use generic repo value (create general config object)
      if 'TRAVIS_REPO_SLUG' in os.environ:
          generate_overview_config_file(os.getenv('TRAVIS_REPO_SLUG'))
  
  if __name__ == "__main__":
      generate_trend(sys.argv[1:])
  
new_contents: #!/usr/bin/env python
  # vim: set expandtab sw=4 ts=4:
  #
  # Generates a trend (graph) from the buildtimes in buildtimes.xml
  #
  # usage : generate_trend.py -h --trend=native
  #
  # Copyright (C) 2014 Dieter Adriaenssens <ruleant@users.sourceforge.net>
  #
  # This file is part of buildtime-trend
  # <https://github.com/ruleant/buildtime-trend/>
  #
  # This program is free software: you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # any later version.
  #
  # This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
  
  import os
  import sys
  import getopt
  
  
  def generate_trend(argv):
      # process arguments
      usage_string = 'generate_trend.py -h --trend=native'
      try:
          opts, args = getopt.getopt(argv, "h", ["trend=", "help"])
      except getopt.GetoptError:
          print usage_string
          sys.exit(2)
  
      #check options
      for opt, arg in opts:
          if opt in ('-h', "--help"):
              print usage_string
              sys.exit()
          elif opt == "--trend":
              if arg == "native":
                  trend_native()
  
      # run trend_keen() always,
      # if $KEEN_PROJECT_ID variable is set (checked later), it will be executed
      trend_keen()
  
  
  def trend_native():
      from buildtimetrend.trend import Trend
      # use parameter for timestamps file and check if file exists
      result_file = os.getenv('BUILD_TREND_OUTPUTFILE', 'trends/buildtimes.xml')
      chart_file = os.getenv('BUILD_TREND_TRENDFILE', 'trends/trend.png')
  
      trend = Trend()
      if trend.gather_data(result_file):
          # print number of builds and list of buildnames
          print 'Builds ({}) :'.format(len(trend.builds)), trend.builds
          print 'Stages ({}) :'.format(len(trend.stages)), trend.stages
          trend.generate(chart_file)
  
  
  def trend_keen():
      from buildtimetrend.keenio import generate_overview_config_file
  
      # TODO use generic repo value (create general config object)
      if 'TRAVIS_REPO_SLUG' in os.environ:
          generate_overview_config_file(os.getenv('TRAVIS_REPO_SLUG'))
  
  if __name__ == "__main__":
      generate_trend(sys.argv[1:])
  
subject: fix coding style