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:
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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.
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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
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24# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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27# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29import os
30
31from webkitpy.changelogs import ChangeLog
32from webkitpy.grammar import pluralize
33from webkitpy.steps.abstractstep import AbstractStep
34from webkitpy.steps.options import Options
35from webkitpy.webkit_logging import log, error
36
37class UpdateChangeLogsWithReviewer(AbstractStep):
38    @classmethod
39    def options(cls):
40        return [
41            Options.reviewer,
42        ]
43
44    def _guess_reviewer_from_bug(self, bug_id):
45        patches = self._tool.bugs.fetch_bug(bug_id).reviewed_patches()
46        if len(patches) != 1:
47            log("%s on bug %s, cannot infer reviewer." % (pluralize("reviewed patch", len(patches)), bug_id))
48            return None
49        patch = patches[0]
50        log("Guessing \"%s\" as reviewer from attachment %s on bug %s." % (patch.reviewer().full_name, patch.id(), bug_id))
51        return patch.reviewer().full_name
52
53    def run(self, state):
54        bug_id = state.get("bug_id")
55        if not bug_id and state.get("patch"):
56            bug_id = state.get("patch").bug_id()
57
58        reviewer = self._options.reviewer
59        if not reviewer:
60            if not bug_id:
61                log("No bug id provided and --reviewer= not provided.  Not updating ChangeLogs with reviewer.")
62                return
63            reviewer = self._guess_reviewer_from_bug(bug_id)
64
65        if not reviewer:
66            log("Failed to guess reviewer from bug %s and --reviewer= not provided.  Not updating ChangeLogs with reviewer." % bug_id)
67            return
68
69        os.chdir(self._tool.scm().checkout_root)
70        for changelog_path in self._tool.scm().modified_changelogs():
71            ChangeLog(changelog_path).set_reviewer(reviewer)
72