Yet another WKR build fix. Sorry for the mess. It seems like I can't win today :(
[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.
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6 # met:
7 #
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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.irc_command import YouThere
41 from webkitpy.tool.bot.ircbot import IRCBot
42 from webkitpy.tool.commands.queues import AbstractQueue
43 from webkitpy.tool.commands.stepsequence import StepSequenceErrorHandler
44
45 _log = logging.getLogger(__name__)
46
47
48 class Agent(object):
49     def __init__(self, tool, newcommitbot):
50         self._tool = tool
51         self._newcommitbot = newcommitbot
52
53     def name(self):
54         return 'WKR'
55
56
57 class NewCommitBot(AbstractQueue, StepSequenceErrorHandler):
58     name = "WKR"
59     watchers = AbstractQueue.watchers + ["rniwa@webkit.org"]
60
61     _commands = {
62         "hi": Hi,
63         "ping": PingPong,
64         "restart": Restart,
65         "yt?": YouThere,
66     }
67
68     _maximum_number_of_revisions_to_avoid_spamming_irc = 10
69
70     # AbstractQueue methods
71
72     def begin_work_queue(self):
73         AbstractQueue.begin_work_queue(self)
74         self._last_svn_revision = int(self._tool.scm().head_svn_revision())
75         self._irc_bot = IRCBot(self.name, self._tool, Agent(self._tool, self), self._commands)
76         self._tool.ensure_irc_connected(self._irc_bot.irc_delegate())
77
78     def work_item_log_path(self, failure_map):
79         return None
80
81     def next_work_item(self):
82         self._irc_bot.process_pending_messages()
83
84         _log.info('Last SVN revision: %d' % self._last_svn_revision)
85
86         count = 0
87         while count < self._maximum_number_of_revisions_to_avoid_spamming_irc:
88             new_revision = self._last_svn_revision + 1
89             try:
90                 commit_log = self._tool.executive.run_command(['svn', 'log', 'https://svn.webkit.org/repository/webkit/trunk', '--non-interactive', '--revision',
91                     self._tool.scm().strip_r_from_svn_revision(new_revision)])
92             except ScriptError:
93                 break
94
95             self._last_svn_revision = new_revision
96             if self._is_empty_log(commit_log):
97                 continue
98
99             count += 1
100             _log.info('Found revision %d' % new_revision)
101             self._tool.irc().post(self._summarize_commit_log(commit_log).encode('utf-8'))
102
103     def _is_empty_log(self, commit_log):
104         return re.match(r'^\-+$', commit_log)
105
106     def process_work_item(self, failure_map):
107         return True
108
109     _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)
110     _rollout_regex = re.compile(r'(rolling out|reverting) (?P<revisions>r?\d+((,\s*|,?\s*and\s+)?r?\d+)*)\.?\s*', re.MULTILINE | re.IGNORECASE)
111     _requested_by_regex = re.compile(r'^\"?(?P<reason>.+?)\"? \(Requested\s+by\s+(?P<author>.+?)\s+on\s+#webkit\)\.', re.MULTILINE | re.IGNORECASE)
112     _bugzilla_url_regex = re.compile(r'http(s?)://bugs\.webkit\.org/show_bug\.cgi\?id=(?P<id>\d+)', re.MULTILINE)
113     _trac_url_regex = re.compile(r'http(s?)://trac.webkit.org/changeset/(?P<revision>\d+)', re.MULTILINE)
114
115     @classmethod
116     def _summarize_commit_log(self, commit_log, committer_list=CommitterList()):
117         patch_by = self._patch_by_regex.search(commit_log)
118         commit_log = self._patch_by_regex.sub('', commit_log, count=1)
119
120         rollout = self._rollout_regex.search(commit_log)
121         commit_log = self._rollout_regex.sub('', commit_log, count=1)
122
123         requested_by = self._requested_by_regex.search(commit_log)
124
125         commit_log = self._bugzilla_url_regex.sub(r'https://webkit.org/b/\g<id>', commit_log)
126         commit_log = self._trac_url_regex.sub(r'https://trac.webkit.org/r\g<revision>', commit_log)
127
128         for contributor in committer_list.contributors():
129             if not contributor.irc_nicknames:
130                 continue
131             name_with_nick = "%s (%s)" % (contributor.full_name, contributor.irc_nicknames[0])
132             if contributor.full_name in commit_log:
133                 commit_log = commit_log.replace(contributor.full_name, name_with_nick)
134                 for email in contributor.emails:
135                     commit_log = commit_log.replace(' <' + email + '>', '')
136             else:
137                 for email in contributor.emails:
138                     commit_log = commit_log.replace(email, name_with_nick)
139
140         lines = commit_log.split('\n')[1:-2]  # Ignore lines with ----------.
141
142         firstline = re.match(r'^(?P<revision>r\d+) \| (?P<email>[^\|]+) \| (?P<timestamp>[^|]+) \| [^\n]+', lines[0])
143         assert firstline
144         author = firstline.group('email')
145         if patch_by:
146             author = patch_by.group('author')
147
148         linkified_revision = 'https://trac.webkit.org/%s' % firstline.group('revision')
149         lines[0] = '%s by %s' % (linkified_revision, author)
150
151         if rollout:
152             if requested_by:
153                 author = requested_by.group('author')
154                 contributor = committer_list.contributor_by_irc_nickname(author)
155                 if contributor:
156                     author = "%s (%s)" % (contributor.full_name, contributor.irc_nicknames[0])
157                 return '%s rolled out %s in %s : %s' % (author, rollout.group('revisions'),
158                     linkified_revision, requested_by.group('reason'))
159             lines[0] = '%s rolled out %s in %s' % (author, rollout.group('revisions'), linkified_revision)
160
161         return ' '.join(filter(lambda line: len(line), lines)[0:4])
162
163     def handle_unexpected_error(self, failure_map, message):
164         _log.error(message)
165
166     # StepSequenceErrorHandler methods
167
168     @classmethod
169     def handle_script_error(cls, tool, state, script_error):
170         # Ideally we would post some information to IRC about what went wrong
171         # here, but we don't have the IRC password in the child process.
172         pass