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 29import logging 30 31from webkitpy.common.system.executive import ScriptError 32from webkitpy.tool.commands.stepsequence import StepSequence 33from webkitpy.tool.multicommandtool import AbstractDeclarativeCommand 34 35_log = logging.getLogger(__name__) 36 37 38class AbstractSequencedCommand(AbstractDeclarativeCommand): 39 steps = None 40 def __init__(self): 41 self._sequence = StepSequence(self.steps) 42 AbstractDeclarativeCommand.__init__(self, self._sequence.options()) 43 44 def _prepare_state(self, options, args, tool): 45 return None 46 47 def execute(self, options, args, tool): 48 try: 49 state = self._prepare_state(options, args, tool) 50 except ScriptError, e: 51 _log.error(e.message_with_output()) 52 self._exit(e.exit_code or 2) 53 54 self._sequence.run_and_handle_errors(tool, options, state) 55