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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 os
30
31from webkitpy.common.checkout.changelog import ChangeLog
32from webkitpy.common.config import urls
33from webkitpy.tool.grammar import join_with_separators
34from webkitpy.tool.steps.abstractstep import AbstractStep
35
36
37class PrepareChangeLogForRevert(AbstractStep):
38    @classmethod
39    def _message_for_revert(cls, revision_list, reason, bug_url=None):
40        message = "Unreviewed, rolling out %s.\n" % join_with_separators(['r' + str(revision) for revision in revision_list])
41        for revision in revision_list:
42            message += "%s\n" % urls.view_revision_url(revision)
43        if bug_url:
44            message += "%s\n" % bug_url
45        # Add an extra new line after the rollout links, before any reason.
46        message += "\n"
47        if reason:
48            message += "%s\n\n" % reason
49        return message
50
51    def run(self, state):
52        # This could move to prepare-ChangeLog by adding a --revert= option.
53        self._tool.executive.run_and_throw_if_fail(self._tool.port().prepare_changelog_command())
54        changelog_paths = self._tool.checkout().modified_changelogs(git_commit=None)
55        bug_url = self._tool.bugs.bug_url_for_bug_id(state["bug_id"]) if state["bug_id"] else None
56        message = self._message_for_revert(state["revision_list"], state["reason"], bug_url)
57        for changelog_path in changelog_paths:
58            # FIXME: Seems we should prepare the message outside of changelogs.py and then just pass in
59            # text that we want to use to replace the reviewed by line.
60            ChangeLog(changelog_path).update_with_unreviewed_message(message)
61