b65b0c331f307606c544a63fdf3b5f75a7b92668
[WebKit-https.git] / Tools / Scripts / webkitpy / tool / commands / newcommitbot.py
1 # Copyright (c) 2012 Google Inc. All rights reserved.
2 # Copyright (c) 2013 Apple Inc. All rights reserved.
3 #
4 # Redistribution and use in source and binary forms, with or without
5 # modification, are permitted provided that the following conditions are
6 # met:
7 #
8 #     * Redistributions of source code must retain the above copyright
9 # notice, this list of conditions and the following disclaimer.
10 #     * Redistributions in binary form must reproduce the above
11 # copyright notice, this list of conditions and the following disclaimer
12 # in the documentation and/or other materials provided with the
13 # distribution.
14 #     * Neither the name of Google Inc. nor the names of its
15 # contributors may be used to endorse or promote products derived from
16 # this software without specific prior written permission.
17 #
18 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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28 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29
30 import logging
31 import re
32
33 from webkitpy.common.config.committers import CommitterList
34 from webkitpy.common.system.executive import ScriptError
35 from webkitpy.tool.bot.irc_command import IRCCommand
36 from webkitpy.tool.bot.irc_command import Help
37 from webkitpy.tool.bot.irc_command import Hi
38 from webkitpy.tool.bot.irc_command import PingPong
39 from webkitpy.tool.bot.irc_command import Restart
40 from webkitpy.tool.bot.ircbot import IRCBot
41 from webkitpy.tool.commands.queues import AbstractQueue
42 from webkitpy.tool.commands.stepsequence import StepSequenceErrorHandler
43
44 _log = logging.getLogger(__name__)
45
46
47 class NewCommitBot(AbstractQueue, StepSequenceErrorHandler):
48     name = "new-commit-bot"
49     watchers = AbstractQueue.watchers + ["rniwa@webkit.org"]
50
51     _commands = {
52         "hi": Hi,
53         "ping": PingPong,
54         "restart": Restart,
55     }
56
57     _maximum_number_of_revisions_to_avoid_spamming_irc = 10
58
59     # AbstractQueue methods
60
61     def begin_work_queue(self):
62         AbstractQueue.begin_work_queue(self)
63         self._last_svn_revision = int(self._tool.scm().head_svn_revision())
64         self._irc_bot = IRCBot('WKR', self._tool, None, self._commands)
65         self._tool.ensure_irc_connected(self._irc_bot.irc_delegate())
66
67     def work_item_log_path(self, failure_map):
68         return None
69
70     def next_work_item(self):
71         self._irc_bot.process_pending_messages()
72
73         _log.info('Last SVN revision: %d' % self._last_svn_revision)
74
75         count = 0
76         while count < self._maximum_number_of_revisions_to_avoid_spamming_irc:
77             new_revision = self._last_svn_revision + 1
78             try:
79                 commit_log = self._tool.executive.run_command(['svn', 'log', 'https://svn.webkit.org/repository/webkit/trunk', '--non-interactive', '--revision',
80                     self._tool.scm().strip_r_from_svn_revision(new_revision)])
81             except ScriptError:
82                 break
83
84             if commit_log.find('No such revision') >= 0:
85                 continue
86
87             self._last_svn_revision = new_revision
88             if self._is_empty_log(commit_log):
89                 continue
90
91             count += 1
92             _log.info('Found revision %d' % new_revision)
93             self._tool.irc().post(self._summarize_commit_log(commit_log).encode('utf-8'))
94
95     def _is_empty_log(self, commit_log):
96         return re.match(r'^\-+$', commit_log)
97
98     def process_work_item(self, failure_map):
99         return True
100
101     _patch_by_regex = re.compile(r'^Patch\s+by\s+(?P<author>.+?)\s+on(\s+\d{4}-\d{2}-\d{2})?\n?', re.MULTILINE | re.IGNORECASE)
102     _rollout_regex = re.compile(r'(rolling out|reverting) (?P<revisions>r?\d+((,\s*|,?\s*and\s+)?r?\d+)*)\.?\s*', re.MULTILINE | re.IGNORECASE)
103     _requested_by_regex = re.compile(r'^\"?(?P<reason>.+?)\"? \(Requested\s+by\s+(?P<author>.+?)\s+on\s+#webkit\)\.', re.MULTILINE | re.IGNORECASE)
104     _bugzilla_url_regex = re.compile(r'http(s?)://bugs\.webkit\.org/show_bug\.cgi\?id=(?P<id>\d+)', re.MULTILINE)
105     _trac_url_regex = re.compile(r'http(s?)://trac.webkit.org/changeset/(?P<revision>\d+)', re.MULTILINE)
106
107     @classmethod
108     def _summarize_commit_log(self, commit_log, committer_list=CommitterList()):
109         patch_by = self._patch_by_regex.search(commit_log)
110         commit_log = self._patch_by_regex.sub('', commit_log, count=1)
111
112         rollout = self._rollout_regex.search(commit_log)
113         commit_log = self._rollout_regex.sub('', commit_log, count=1)
114
115         requested_by = self._requested_by_regex.search(commit_log)
116
117         commit_log = self._bugzilla_url_regex.sub(r'https://webkit.org/b/\g<id>', commit_log)
118         commit_log = self._trac_url_regex.sub(r'https://trac.webkit.org/r\g<revision>', commit_log)
119
120         for contributor in committer_list.contributors():
121             if not contributor.irc_nicknames:
122                 continue
123             name_with_nick = "%s (%s)" % (contributor.full_name, contributor.irc_nicknames[0])
124             if contributor.full_name in commit_log:
125                 commit_log = commit_log.replace(contributor.full_name, name_with_nick)
126                 for email in contributor.emails:
127                     commit_log = commit_log.replace(' <' + email + '>', '')
128             else:
129                 for email in contributor.emails:
130                     commit_log = commit_log.replace(email, name_with_nick)
131
132         lines = commit_log.split('\n')[1:-2]  # Ignore lines with ----------.
133
134         firstline = re.match(r'^(?P<revision>r\d+) \| (?P<email>[^\|]+) \| (?P<timestamp>[^|]+) \| [^\n]+', lines[0])
135         assert firstline
136         author = firstline.group('email')
137         if patch_by:
138             author = patch_by.group('author')
139
140         linkified_revision = 'https://trac.webkit.org/%s' % firstline.group('revision')
141         lines[0] = '%s by %s' % (linkified_revision, author)
142
143         if rollout:
144             if requested_by:
145                 author = requested_by.group('author')
146                 contributor = committer_list.contributor_by_irc_nickname(author)
147                 if contributor:
148                     author = "%s (%s)" % (contributor.full_name, contributor.irc_nicknames[0])
149                 return '%s rolled out %s in %s : %s' % (author, rollout.group('revisions'),
150                     linkified_revision, requested_by.group('reason'))
151             lines[0] = '%s rolled out %s in %s' % (author, rollout.group('revisions'), linkified_revision)
152
153         return ' '.join(filter(lambda line: len(line), lines)[0:4])
154
155     def handle_unexpected_error(self, failure_map, message):
156         _log.error(message)
157
158     # StepSequenceErrorHandler methods
159
160     @classmethod
161     def handle_script_error(cls, tool, state, script_error):
162         # Ideally we would post some information to IRC about what went wrong
163         # here, but we don't have the IRC password in the child process.
164         pass