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 29from webkitpy.webkit_logging import log 30from webkitpy.webkitport import WebKitPort 31 32 33class AbstractStep(object): 34 def __init__(self, tool, options): 35 self._tool = tool 36 self._options = options 37 self._port = None 38 39 def _run_script(self, script_name, quiet=False, port=WebKitPort): 40 log("Running %s" % script_name) 41 # FIXME: This should use self.port() 42 self._tool.executive.run_and_throw_if_fail(port.script_path(script_name), quiet) 43 44 # FIXME: The port should live on the tool. 45 def port(self): 46 if self._port: 47 return self._port 48 self._port = WebKitPort.port(self._options.port) 49 return self._port 50 51 _well_known_keys = { 52 "diff" : lambda self: self._tool.scm().create_patch(), 53 "changelogs" : lambda self: self._tool.scm().modified_changelogs(), 54 } 55 56 def cached_lookup(self, state, key, promise=None): 57 if state.get(key): 58 return state[key] 59 if not promise: 60 promise = self._well_known_keys.get(key) 61 state[key] = promise(self) 62 return state[key] 63 64 @classmethod 65 def options(cls): 66 return [] 67 68 def run(self, state): 69 raise NotImplementedError, "subclasses must implement" 70