2 # Copyright (c) 2012 Eric S. Raymond <esr@thyrsus.com>
3 # Distributed under BSD terms.
5 # This script contains git porcelain and porcelain byproducts.
6 # Requires Python 2.6, or 2.5 with the simplejson library installed.
8 # usage: irkerhook.py [-V] [-n] [--variable=value...] [commit_id...]
10 # This script is meant to be run in an update or post-commit hook.
11 # Try it with -n to see the notification dumped to stdout and verify
12 # that it looks sane. With -V this script dumps its version and exits.
14 # See the irkerhook manual page in the distribution for a detailed
15 # explanation of how to configure this hook.
17 # The default location of the irker proxy, if the project configuration
18 # does not override it.
19 default_server = "localhost"
22 # The default service used to turn your web-view URL into a tinyurl so it
23 # will take up less space on the IRC notification line.
24 default_tinyifier = "http://tinyurl.com/api-create.php?url="
26 # Map magic urlprefix values to actual URL prefixes.
28 "viewcvs": "http://%(host)s/viewcvs/%(repo)s?view=revision&revision=",
29 "gitweb": "http://%(host)s/cgi-bin/gitweb.cgi?p=%(repo)s;a=commit;h=",
30 "cgit": "http://%(host)s/cgi-bin/cgit.cgi/%(repo)s/commit/?id=",
33 # By default, ship to the freenode #commits list
34 default_channels = "irc://chat.freenode.net/#commits"
37 # No user-serviceable parts below this line:
42 import os, sys, commands, socket, urllib, subprocess, locale, datetime
43 from pipes import quote as shellquote
45 import simplejson as json # Faster, also makes us Python-2.5-compatible
50 return unicode(commands.getstatusoutput(command)[1], locale.getlocale()[1] or 'UTF-8').encode(locale.getlocale()[1] or 'UTF-8')
53 def __init__(self, extractor, commit):
63 self.author_date = None
64 self.commit_date = None
65 self.__dict__.update(extractor.__dict__)
66 def __unicode__(self):
67 "Produce a notification string from this commit."
68 if self.urlprefix.lower() == "none":
71 urlprefix = urlprefixmap.get(self.urlprefix, self.urlprefix)
72 webview = (urlprefix % self.__dict__) + self.commit
74 if urllib.urlopen(webview).getcode() == 404:
76 if self.tinyifier and self.tinyifier.lower() != "none":
78 # Didn't get a retrieval error or 404 on the web
79 # view, so try to tinyify a reference to it.
80 self.url = open(urllib.urlretrieve(self.tinyifier + webview)[0]).read()
82 self.url = self.url.decode('UTF-8')
91 return self.template % self.__dict__
93 class GenericExtractor:
94 "Generic class for encapsulating data from a VCS."
96 numerics = ["maxchannels"]
97 def __init__(self, arguments):
98 self.arguments = arguments
101 # These aren't really repo data but they belong here anyway...
103 self.tinyifier = default_tinyifier
108 self.urlprefix = None
109 self.host = socket.getfqdn()
111 self.filtercmd = None
112 # Color highlighting is disabled by default.
114 self.bold = self.green = self.blue = self.yellow = ""
115 self.brown = self.magenta = self.cyan = self.reset = ""
116 def activate_color(self, style):
119 # mIRC colors are mapped as closely to the ANSI colors as
120 # possible. However, bright colors (green, blue, red,
121 # yellow) have been made their dark counterparts since
122 # ChatZilla does not properly darken mIRC colors in the
123 # Light Motif color scheme.
125 self.green = '\x0303'
128 self.yellow = '\x0307'
129 self.brown = '\x0305'
130 self.magenta = '\x0306'
134 self.bold = '\x1b[1m'
135 self.green = '\x1b[1;32m'
136 self.blue = '\x1b[1;34m'
137 self.red = '\x1b[1;31m'
138 self.yellow = '\x1b[1;33m'
139 self.brown = '\x1b[33m'
140 self.magenta = '\x1b[35m'
141 self.cyan = '\x1b[36m'
142 self.reset = '\x1b[0m'
143 def load_preferences(self, conf):
144 "Load preferences from a file in the repository root."
145 if not os.path.exists(conf):
148 for line in open(conf):
150 if line.startswith("#") or not line.strip():
152 elif line.count('=') != 1:
153 sys.stderr.write('"%s", line %d: missing = in config line\n' \
156 fields = line.split('=')
158 sys.stderr.write('"%s", line %d: too many fields in config line\n' \
161 variable = fields[0].strip()
162 value = fields[1].strip()
163 if value.lower() == "true":
165 elif value.lower() == "false":
167 # User cannot set maxchannels - only a command-line arg can do that.
168 if variable == "maxchannels":
170 setattr(self, variable, value)
171 def do_overrides(self):
172 "Make command-line overrides possible."
173 for tok in self.arguments:
174 for key in self.__dict__:
175 if tok.startswith("--" + key + "="):
176 val = tok[len(key)+3:]
177 setattr(self, key, val)
178 for (key, val) in self.__dict__.items():
179 if key in GenericExtractor.booleans:
180 if type(val) == type("") and val.lower() == "true":
181 setattr(self, key, True)
182 elif type(val) == type("") and val.lower() == "false":
183 setattr(self, key, False)
184 elif key in GenericExtractor.numerics:
185 setattr(self, key, int(val))
187 sys.stderr.write("irkerhook.py: no project name set!\n")
190 self.repo = self.project.lower()
191 if not self.channels:
192 self.channels = default_channels % self.__dict__
193 if self.color and self.color.lower() != "none":
194 self.activate_color(self.color)
196 def has(dirname, paths):
197 "Test for existence of a list of paths."
198 return all([os.path.exists(os.path.join(dirname, x)) for x in paths])
200 # VCS-dependent code begins here
202 class GitExtractor(GenericExtractor):
203 "Metadata extraction for the git version control system."
205 def is_repository(dirname):
206 # Must detect both ordinary and bare repositories
207 return has(dirname, [".git"]) or \
208 has(dirname, ["HEAD", "refs", "objects"])
209 def __init__(self, arguments):
210 GenericExtractor.__init__(self, arguments)
211 # Get all global config variables
212 self.project = do("git config --get irker.project")
213 self.repo = do("git config --get irker.repo")
214 self.server = do("git config --get irker.server")
215 self.channels = do("git config --get irker.channels")
216 self.tcp = do("git config --bool --get irker.tcp")
217 self.template = '%(bold)s%(project)s:%(reset)s %(green)s%(author)s%(reset)s %(repo)s:%(yellow)s%(branch)s%(reset)s * %(bold)s%(rev)s%(reset)s / %(bold)s%(files)s%(reset)s: %(logmsg)s %(brown)s%(url)s%(reset)s'
218 self.tinyifier = do("git config --get irker.tinyifier") or default_tinyifier
219 self.color = do("git config --get irker.color")
220 self.urlprefix = do("git config --get irker.urlprefix") or "gitweb"
221 self.cialike = do("git config --get irker.cialike")
222 self.filtercmd = do("git config --get irker.filtercmd")
223 # These are git-specific
224 self.refname = do("git symbolic-ref HEAD 2>/dev/null")
225 self.revformat = do("git config --get irker.revformat")
226 # The project variable defaults to the name of the repository toplevel.
228 bare = do("git config --bool --get core.bare")
229 if bare.lower() == "true":
232 keyfile = ".git/HEAD"
235 if os.path.exists(os.path.join(here, keyfile)):
236 self.project = os.path.basename(here)
237 if self.project.endswith('.git'):
238 self.project = self.project[0:-4]
241 sys.stderr.write("irkerhook.py: no git repo below root!\n")
243 here = os.path.dirname(here)
247 "Return a symbolic reference to the tip commit of the current branch."
249 def commit_factory(self, commit_id):
250 "Make a Commit object holding data for a specified commit ID."
251 commit = Commit(self, commit_id)
252 commit.branch = os.path.basename(self.refname)
253 # Compute a description for the revision
254 if self.revformat == 'raw':
255 commit.rev = commit.commit
256 elif self.revformat == 'short':
258 else: # self.revformat == 'describe'
259 commit.rev = do("git describe %s 2>/dev/null" % shellquote(commit.commit))
261 commit.rev = commit.commit[:12]
262 # Extract the meta-information for the commit
263 commit.files = do("git diff-tree -r --name-only " + shellquote(commit.commit))
264 commit.files = " ".join(commit.files.strip().split("\n")[1:])
265 # Design choice: for git we ship only the first line, which is
266 # conventionally supposed to be a summary of the commit. Under
267 # other VCSes a different choice may be appropriate.
268 metainfo = do("git log -1 '--pretty=format:%an <%ae>|%s' " + shellquote(commit.commit))
269 (commit.author, _, commit.logmsg) = metainfo.partition("|")
270 commit.mail = commit.author.split()[-1].strip("<>")
271 # This discards the part of the author's address after @.
272 # Might be be nice to ship the full email address, if not
273 # for spammers' address harvesters - getting this wrong
274 # would make the freenode #commits channel into harvester heaven.
275 commit.author = commit.mail.split("@")[0]
276 commit.author_date, commit.commit_date = \
277 do("git log -1 '--pretty=format:%ai|%ci' " + shellquote(commit.commit)).split("|")
280 class SvnExtractor(GenericExtractor):
281 "Metadata extraction for the svn version control system."
283 def is_repository(dirname):
284 return has(dirname, ["format", "hooks", "locks"])
285 def __init__(self, arguments):
286 GenericExtractor.__init__(self, arguments)
287 # Some things we need to have before metadata queries will work
288 self.repository = '.'
289 for tok in arguments:
290 if tok.startswith("--repository="):
291 self.repository = tok[13:]
292 self.project = os.path.basename(self.repository)
293 self.template = '%(bold)s%(project)s%(reset)s: %(green)s%(author)s%(reset)s %(repo)s * %(bold)s%(rev)s%(reset)s / %(bold)s%(files)s%(reset)s: %(logmsg)s %(brown)s%(url)s%(reset)s'
294 self.urlprefix = "viewcvs"
295 self.load_preferences(os.path.join(self.repository, "irker.conf"))
298 sys.stderr.write("irker: under svn, hook requires a commit argument.\n")
300 def commit_factory(self, commit_id):
302 commit = Commit(self, commit_id)
304 commit.rev = "r%s" % self.id
305 commit.author = self.svnlook("author")
306 commit.commit_date = self.svnlook("date").partition('(')[0]
307 commit.files = self.svnlook("dirs-changed").strip().replace("\n", " ")
308 commit.logmsg = self.svnlook("log").strip()
310 def svnlook(self, info):
311 return do("svnlook %s %s --revision %s" % (shellquote(info), shellquote(self.repository), shellquote(self.id)))
313 class HgExtractor(GenericExtractor):
314 "Metadata extraction for the Mercurial version control system."
316 def is_repository(directory):
317 return has(directory, [".hg"])
318 def __init__(self, arguments):
319 # This fiddling with arguments is necessary since the Mercurial hook can
320 # be run in two different ways: either directly via Python (in which
321 # case hg should be pointed to the hg_hook function below) or as a
322 # script (in which case the normal __main__ block at the end of this
323 # file is exercised). In the first case, we already get repository and
324 # ui objects from Mercurial, in the second case, we have to create them
325 # from the root path.
326 self.repository = None
327 if arguments and type(arguments[0]) == type(()):
328 # Called from hg_hook function
329 ui, self.repository = arguments[0]
330 arguments = [] # Should not be processed further by do_overrides
332 # Called from command line: create repo/ui objects
333 from mercurial import hg, ui as uimod
336 for tok in arguments:
337 if tok.startswith('--repository='):
340 ui.readconfig(os.path.join(repopath, '.hg', 'hgrc'), repopath)
341 self.repository = hg.repository(ui, repopath)
343 GenericExtractor.__init__(self, arguments)
344 # Extract global values from the hg configuration file(s)
345 self.project = ui.config('irker', 'project')
346 self.repo = ui.config('irker', 'repo')
347 self.server = ui.config('irker', 'server')
348 self.channels = ui.config('irker', 'channels')
349 self.tcp = str(ui.configbool('irker', 'tcp')) # converted to bool again in do_overrides
350 self.template = '%(bold)s%(project)s:%(reset)s %(green)s%(author)s%(reset)s %(repo)s:%(yellow)s%(branch)s%(reset)s * %(bold)s%(rev)s%(reset)s / %(bold)s%(files)s%(reset)s: %(logmsg)s %(brown)s%(url)s%(reset)s'
351 self.tinyifier = ui.config('irker', 'tinyifier') or default_tinyifier
352 self.color = ui.config('irker', 'color')
353 self.urlprefix = (ui.config('irker', 'urlprefix') or
354 ui.config('web', 'baseurl') or '')
356 # self.commit is appended to this by do_overrides
357 self.urlprefix = self.urlprefix.rstrip('/') + '/rev/'
358 self.cialike = ui.config('irker', 'cialike')
359 self.filtercmd = ui.config('irker', 'filtercmd')
361 self.project = os.path.basename(self.repository.root.rstrip('/'))
364 "Return a symbolic reference to the tip commit of the current branch."
366 def commit_factory(self, commit_id):
367 "Make a Commit object holding data for a specified commit ID."
368 from mercurial.node import short
369 from mercurial.templatefilters import person
370 node = self.repository.lookup(commit_id)
371 commit = Commit(self, short(node))
372 # Extract commit-specific values from a "context" object
373 ctx = self.repository.changectx(node)
374 commit.rev = '%d:%s' % (ctx.rev(), commit.commit)
375 commit.branch = ctx.branch()
376 commit.author = person(ctx.user())
377 commit.author_date = \
378 datetime.datetime.fromtimestamp(ctx.date()[0]).strftime('%Y-%m-%d %H:%M:%S')
379 commit.logmsg = ctx.description()
380 # Extract changed files from status against first parent
381 st = self.repository.status(ctx.p1().node(), ctx.node())
382 commit.files = ' '.join(st[0] + st[1] + st[2])
385 def hg_hook(ui, repo, **kwds):
386 # To be called from a Mercurial "commit" or "incoming" hook. Example
389 # incoming.irker = python:/path/to/irkerhook.py:hg_hook
390 extractor = HgExtractor([(ui, repo)])
391 ship(extractor, kwds['node'], False)
393 # The files we use to identify a Subversion repo might occur as content
394 # in a git or hg repo, but the special subdirectories for those are more
395 # reliable indicators. So test for Subversion last.
396 extractors = [GitExtractor, HgExtractor, SvnExtractor]
398 # VCS-dependent code ends here
400 def ship(extractor, commit, debug):
401 "Ship a notification for the specified commit."
402 metadata = extractor.commit_factory(commit)
404 # This is where we apply filtering
405 if extractor.filtercmd:
406 cmd = '%s %s' % (shellquote(extractor.filtercmd),
407 shellquote(json.dumps(metadata.__dict__)))
408 data = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE).stdout.read()
410 metadata.__dict__.update(json.loads(data))
412 sys.stderr.write("irkerhook.py: could not decode JSON: %s\n" % data)
415 # Rewrite the file list if too long. The objective here is only
416 # to be easier on the eyes.
417 if extractor.cialike \
418 and extractor.cialike.lower() != "none" \
419 and len(metadata.files) > int(extractor.cialike):
420 files = metadata.files.split()
421 dirs = set([d.rpartition('/')[0] for d in files])
423 metadata.files = "(%s files)" % (len(files),)
425 metadata.files = "(%s files in %s dirs)" % (len(files), len(dirs))
426 # Message reduction. The assumption here is that IRC can't handle
427 # lines more than 510 characters long. If we exceed that length, we
428 # try knocking out the file list, on the theory that for notification
429 # purposes the commit text is more important. If it's still too long
430 # there's nothing much can be done other than ship it expecting the IRC
431 # server to truncate.
432 privmsg = unicode(metadata)
433 if len(privmsg) > 510:
435 privmsg = unicode(metadata)
437 # Anti-spamming guard. It's deliberate that we get maxchannels not from
438 # the user-filtered metadata but from the extractor data - means repo
439 # administrators can lock in that setting.
440 channels = metadata.channels.split(",")
441 if extractor.maxchannels != 0:
442 channels = channels[:extractor.maxchannels]
445 message = json.dumps({"to": channels, "privmsg": privmsg})
452 sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
453 sock.connect((extractor.server or default_server, IRKER_PORT))
454 sock.sendall(message + "\n")
459 sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
460 sock.sendto(message + "\n", (extractor.server or default_server, IRKER_PORT))
463 except socket.error, e:
464 sys.stderr.write("%s\n" % e)
466 if __name__ == "__main__":
468 repository = os.getcwd()
470 for arg in sys.argv[1:]:
474 print "irkerhook.py: version", version
476 elif arg.startswith("--repository="):
477 repository = arg[13:]
478 elif not arg.startswith("--"):
481 # Figure out which extractor we should be using
482 for candidate in extractors:
483 if candidate.is_repository(repository):
487 sys.stderr.write("irkerhook: cannot identify a repository type.\n")
489 extractor = cls(sys.argv[1:])
493 commits = [extractor.head()]
494 for commit in commits:
495 ship(extractor, commit, not notify)