1 # Copyright (C) 2010 Google Inc. All rights reserved. 2 # 3 # Redistribution and use in source and binary forms, with or without 4 # modification, are permitted provided that the following conditions are 5 # met: 6 # 7 # * Redistributions of source code must retain the above copyright 8 # notice, this list of conditions and the following disclaimer. 9 # * Redistributions in binary form must reproduce the above 10 # copyright notice, this list of conditions and the following disclaimer 11 # in the documentation and/or other materials provided with the 12 # distribution. 13 # * Neither the name of Google Inc. nor the names of its 14 # contributors may be used to endorse or promote products derived from 15 # this software without specific prior written permission. 16 # 17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 29 from webkitpy.common.system.executive import ScriptError 30 from webkitpy.common.system.deprecated_logging import log 31 from webkitpy.tool.commands.stepsequence import StepSequence 32 from webkitpy.tool.multicommandtool import AbstractDeclarativeCommand 33 34 35 class AbstractSequencedCommand(AbstractDeclarativeCommand): 36 steps = None 37 def __init__(self): 38 self._sequence = StepSequence(self.steps) 39 AbstractDeclarativeCommand.__init__(self, self._sequence.options()) 40 41 def _prepare_state(self, options, args, tool): 42 return None 43 44 def execute(self, options, args, tool): 45 try: 46 state = self._prepare_state(options, args, tool) 47 except ScriptError, e: 48 log(e.message_with_output()) 49 exit(e.exit_code or 2) 50 51 self._sequence.run_and_handle_errors(tool, options, state) 52