old_contents: #!/usr/bin/env python
  """
  _delegate_
  
  Main cirrus command that delegates the call to
  the sub command verb enabling
  
  git cirrus do_a_thing  to be routed to the appropriate
  command call for do_a_thing
  
  """
  import os
  import os.path
  import pkg_resources
  import sys
  import signal
  import subprocess
  
  import cirrus.environment as env
  
  
  def install_signal_handlers():
      """
      Need to catch SIGINT to allow the command to be CTRL-C'ed
  
      """
      def signal_handler(signal, frame):
          sys.exit(0)
      signal.signal(signal.SIGINT, signal_handler)
  
  
  def run_command(cmd):
      """
      run the delegated command with the CTRL-C signal handler
      in place
      """
      install_signal_handlers()
      return subprocess.call(cmd, shell=False)
  
  
  HELP = \
  """
  Cirrus commands available are:
  
  {0}
  
  Do git cirrus <command> -h for more information on a
  particular command
  """
  
  
  def format_help(command_list):
      subs = '\n'.join(
          [c for c in command_list if c != 'cirrus']
      )
      return HELP.format(subs)
  
  
  def main():
      """
      _main_
  
      response to the cirrus <verb> command
      Extracts the available verbs that are installed as
      entry points by setup.py as cirrus_commands
  
      """
      home = env.virtualenv_home()
      commands = []
      for script in pkg_resources.iter_entry_points(group="cirrus_commands"):
          comm = str(script).split(" = ", 1)[0]
          commands.append(comm)
      commands.sort()
  
      # switch to the current GIT_PREFIX working dir
      old_dir = os.getcwd()
      os.chdir(os.path.abspath(os.environ.get('GIT_PREFIX', '.')))
  
      try:
          args = sys.argv[1:]
          if len(args) == 0 or args[0] == '-h':
              # missing command or help
              print format_help(commands)
              exit_code = 0
          else:
              command_path = "{0}/bin/{1}".format(home, args[0])
              if not os.path.exists(command_path):
                  msg = "Unknown command: {}".format(args[0])
                  print msg
                  print format_help(commands)
                  exit_code = 1
              else:
                  exit_code = run_command([command_path, ] + args[1:])
      finally:
          # always return to previous dir
          os.chdir(old_dir)
      return exit_code
  
  if __name__ == "__main__":
      sys.exit(main())
  
new_contents: #!/usr/bin/env python
  """
  _delegate_
  
  Main cirrus command that delegates the call to
  the sub command verb enabling
  
  git cirrus do_a_thing  to be routed to the appropriate
  command call for do_a_thing
  
  """
  import os
  import os.path
  import pkg_resources
  import sys
  import signal
  import subprocess
  
  import cirrus.environment as env
  
  
  def install_signal_handlers():
      """
      Need to catch SIGINT to allow the command to be CTRL-C'ed
  
      """
      def signal_handler(signal, frame):
          sys.exit(0)
      signal.signal(signal.SIGINT, signal_handler)
  
  
  def run_command(cmd):
      """
      run the delegated command with the CTRL-C signal handler
      in place
      """
      install_signal_handlers()
      return subprocess.call(cmd, shell=False)
  
  
  HELP = \
  """
  Cirrus commands available are:
  
  {0}
  
  Do git cirrus <command> -h for more information on a
  particular command
  """
  
  
  def format_help(command_list):
      subs = '\n'.join(
          [c for c in command_list if c != 'cirrus']
      )
      return HELP.format(subs)
  
  
  def main():
      """
      _main_
  
      response to the cirrus <verb> command
      Extracts the available verbs that are installed as
      entry points by setup.py as cirrus_commands
  
      """
      home = env.virtualenv_home()
      commands = []
      for script in pkg_resources.iter_entry_points(group="cirrus_commands"):
          comm = str(script).split(" = ", 1)[0]
          commands.append(comm)
      commands.sort()
  
      # switch to the current GIT_PREFIX working dir
      old_dir = os.getcwd()
      os.chdir(os.path.abspath(os.environ.get('GIT_PREFIX', '.')))
  
      try:
          args = sys.argv[1:]
          if len(args) == 0 or args[0] == '-h':
              # missing command or help
              print format_help(commands)
              exit_code = 0
          else:
              command_path = "{0}/bin/{1}".format(home, args[0])
              if not os.path.exists(command_path):
                  msg = "Unknown command: {}".format(args[0])
                  print msg
                  print format_help(commands)
                  exit_code = 127
              else:
                  exit_code = run_command([command_path, ] + args[1:])
      finally:
          # always return to previous dir
          os.chdir(old_dir)
      return exit_code
  
  if __name__ == "__main__":
      sys.exit(main())
  
subject: exit 127 for command not found