# notify.py - email notifications for mercurial
#
# Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
'''hooks for sending email push notifications
This extension implements hooks to send email notifications when
changesets are sent from or received by the local repository.
First, enable the extension as explained in :hg:`help extensions`, and
register the hook you want to run. ``incoming`` and ``changegroup`` hooks
are run when changesets are received, while ``outgoing`` hooks are for
changesets sent to another repository::
[hooks]
# one email for each incoming changeset
incoming.notify = python:hgext.notify.hook
# one email for all incoming changesets
changegroup.notify = python:hgext.notify.hook
# one email for all outgoing changesets
outgoing.notify = python:hgext.notify.hook
This registers the hooks. To enable notification, subscribers must
be assigned to repositories. The ``[usersubs]`` section maps multiple
repositories to a given recipient. The ``[reposubs]`` section maps
multiple recipients to a single repository::
[usersubs]
# key is subscriber email, value is a comma-separated list of repo patterns
user@host = pattern
[reposubs]
# key is repo pattern, value is a comma-separated list of subscriber emails
pattern = user@host
A ``pattern`` is a ``glob`` matching the absolute path to a repository,
optionally combined with a revset expression. A revset expression, if
present, is separated from the glob by a hash. Example::
[reposubs]
*/widgets#branch(release) = qa-team@example.com
This sends to ``qa-team@example.com`` whenever a changeset on the ``release``
branch triggers a notification in any repository ending in ``widgets``.
In order to place them under direct user management, ``[usersubs]`` and
``[reposubs]`` sections may be placed in a separate ``hgrc`` file and
incorporated by reference::
[notify]
config = /path/to/subscriptionsfile
Notifications will not be sent until the ``notify.test`` value is set
to ``False``; see below.
Notifications content can be tweaked with the following configuration entries:
notify.test
If ``True``, print messages to stdout instead of sending them. Default: True.
notify.sources
Space-separated list of change sources. Notifications are activated only
when a changeset's source is in this list. Sources may be:
:``serve``: changesets received via http or ssh
:``pull``: changesets received via ``hg pull``
:``unbundle``: changesets received via ``hg unbundle``
:``push``: changesets sent or received via ``hg push``
:``bundle``: changesets sent via ``hg unbundle``
Default: serve.
notify.strip
Number of leading slashes to strip from url paths. By default, notifications
reference repositories with their absolute path. ``notify.strip`` lets you
turn them into relative paths. For example, ``notify.strip=3`` will change
``/long/path/repository`` into ``repository``. Default: 0.
notify.domain
Default email domain for sender or recipients with no explicit domain.
notify.style
Style file to use when formatting emails.
notify.template
Template to use when formatting emails.
notify.incoming
Template to use when run as an incoming hook, overriding ``notify.template``.
notify.outgoing
Template to use when run as an outgoing hook, overriding ``notify.template``.
notify.changegroup
Template to use when running as a changegroup hook, overriding
``notify.template``.
notify.maxdiff
Maximum number of diff lines to include in notification email. Set to 0
to disable the diff, or -1 to include all of it. Default: 300.
notify.maxdiffstat
Maximum number of diffstat lines to include in notification email. Set to -1
to include all of it. Default: -1.
notify.maxsubject
Maximum number of characters in email's subject line. Default: 67.
notify.diffstat
Set to True to include a diffstat before diff content. Default: True.
notify.showfunc
If set, override ``diff.showfunc`` for the diff content. Default: None.
notify.merge
If True, send notifications for merge changesets. Default: True.
notify.mbox
If set, append mails to this mbox file instead of sending. Default: None.
notify.fromauthor
If set, use the committer of the first changeset in a changegroup for
the "From" field of the notification mail. If not set, take the user
from the pushing repo. Default: False.
If set, the following entries will also be used to customize the
notifications:
email.from
Email ``From`` address to use if none can be found in the generated
email content.
web.baseurl
Root repository URL to combine with repository paths when making
references. See also ``notify.strip``.
'''
from __future__ import absolute_import
import email.errors as emailerrors
import email.parser as emailparser
import fnmatch
import socket
import time
from mercurial.i18n import _
from mercurial import (
encoding,
error,
logcmdutil,
mail,
patch,
registrar,
util,
)
from mercurial.utils import (
dateutil,
stringutil,
)
# Note for extension authors: ONLY specify testedwith = 'ships-with-hg-core' for
# extensions which SHIP WITH MERCURIAL. Non-mainline extensions should
# be specifying the version(s) of Mercurial they are tested with, or
# leave the attribute unspecified.
testedwith = 'ships-with-hg-core'
configtable = {}
configitem = registrar.configitem(configtable)
configitem('notify', 'changegroup',
default=None,
)
configitem('notify', 'config',
default=None,
)
configitem('notify', 'diffstat',
default=True,
)
configitem('notify', 'domain',
default=None,
)
configitem('notify', 'fromauthor',
default=None,
)
configitem('notify', 'incoming',
default=None,
)
configitem('notify', 'maxdiff',
default=300,
)
configitem('notify', 'maxdiffstat',
default=-1,
)
configitem('notify', 'maxsubject',
default=67,
)
configitem('notify', 'mbox',
default=None,
)
configitem('notify', 'merge',
default=True,
)
configitem('notify', 'outgoing',
default=None,
)
configitem('notify', 'sources',
default='serve',
)
configitem('notify', 'showfunc',
default=None,
)
configitem('notify', 'strip',
default=0,
)
configitem('notify', 'style',
default=None,
)
configitem('notify', 'template',
default=None,
)
configitem('notify', 'test',
default=True,
)
# template for single changeset can include email headers.
single_template = b'''
Subject: changeset in {webroot}: {desc|firstline|strip}
From: {author}
changeset {node|short} in {root}
details: {baseurl}{webroot}?cmd=changeset;node={node|short}
description:
\t{desc|tabindent|strip}
'''.lstrip()
# template for multiple changesets should not contain email headers,
# because only first set of headers will be used and result will look
# strange.
multiple_template = b'''
changeset {node|short} in {root}
details: {baseurl}{webroot}?cmd=changeset;node={node|short}
summary: {desc|firstline}
'''
deftemplates = {
'changegroup': multiple_template,
}
class notifier(object):
'''email notification class.'''
def __init__(self, ui, repo, hooktype):
self.ui = ui
cfg = self.ui.config('notify', 'config')
if cfg:
self.ui.readconfig(cfg, sections=['usersubs', 'reposubs'])
self.repo = repo
self.stripcount = int(self.ui.config('notify', 'strip'))
self.root = self.strip(self.repo.root)
self.domain = self.ui.config('notify', 'domain')
self.mbox = self.ui.config('notify', 'mbox')
self.test = self.ui.configbool('notify', 'test')
self.charsets = mail._charsets(self.ui)
self.subs = self.subscribers()
self.merge = self.ui.configbool('notify', 'merge')
self.showfunc = self.ui.configbool('notify', 'showfunc')
if self.showfunc is None:
self.showfunc = self.ui.configbool('diff', 'showfunc')
mapfile = None
template = (self.ui.config('notify', hooktype) or
self.ui.config('notify', 'template'))
if not template:
mapfile = self.ui.config('notify', 'style')
if not mapfile and not template:
template = deftemplates.get(hooktype) or single_template
spec = logcmdutil.templatespec(template, mapfile)
self.t = logcmdutil.changesettemplater(self.ui, self.repo, spec)
def strip(self, path):
'''strip leading slashes from local path, turn into web-safe path.'''
path = util.pconvert(path)
count = self.stripcount
while count > 0:
c = path.find('/')
if c == -1:
break
path = path[c + 1:]
count -= 1
return path
def fixmail(self, addr):
'''try to clean up email addresses.'''
addr = stringutil.email(addr.strip())
if self.domain:
a = addr.find('@localhost')
if a != -1:
addr = addr[:a]
if '@' not in addr:
return addr + '@' + self.domain
return addr
def subscribers(self):
'''return list of email addresses of subscribers to this repo.'''
subs = set()
for user, pats in self.ui.configitems('usersubs'):
for pat in pats.split(','):
if '#' in pat:
pat, revs = pat.split('#', 1)
else:
revs = None
if fnmatch.fnmatch(self.repo.root, pat.strip()):
subs.add((self.fixmail(user), revs))
for pat, users in self.ui.configitems('reposubs'):
if '#' in pat:
pat, revs = pat.split('#', 1)
else:
revs = None
if fnmatch.fnmatch(self.repo.root, pat):
for user in users.split(','):
subs.add((self.fixmail(user), revs))
return [(mail.addressencode(self.ui, s, self.charsets, self.test), r)
for s, r in sorted(subs)]
def node(self, ctx, **props):
'''format one changeset, unless it is a suppressed merge.'''
if not self.merge and len(ctx.parents()) > 1:
return False
self.t.show(ctx, changes=ctx.changeset(),
baseurl=self.ui.config('web', 'baseurl'),
root=self.repo.root, webroot=self.root, **props)
return True
def skipsource(self, source):
'''true if incoming changes from this source should be skipped.'''
ok_sources = self.ui.config('notify', 'sources').split()
return source not in ok_sources
def send(self, ctx, count, data):
'''send message.'''
# Select subscribers by revset
subs = set()
for sub, spec in self.subs:
if spec is None:
subs.add(sub)
continue
revs = self.repo.revs('%r and %d:', spec, ctx.rev())
if len(revs):
subs.add(sub)
continue
if len(subs) == 0:
self.ui.debug('notify: no subscribers to selected repo '
'and revset\n')
return
p = emailparser.Parser()
try:
msg = p.parsestr(encoding.strfromlocal(data))
except emailerrors.MessageParseError as inst:
raise error.Abort(inst)
# store sender and subject
sender = msg[r'From']
subject = msg[r'Subject']
if sender is not None:
sender = encoding.strtolocal(sender)
if subject is not None:
subject = encoding.strtolocal(subject)
del msg[r'From'], msg[r'Subject']
if not msg.is_multipart():
# create fresh mime message from scratch
# (multipart templates must take care of this themselves)
headers = msg.items()
payload = msg.get_payload()
# for notification prefer readability over data precision
msg = mail.mimeencode(self.ui, payload, self.charsets, self.test)
# reinstate custom headers
for k, v in headers:
msg[k] = v
msg[r'Date'] = encoding.strfromlocal(
dateutil.datestr(format="%a, %d %b %Y %H:%M:%S %1%2"))
# try to make subject line exist and be useful
if not subject:
if count > 1:
subject = _('%s: %d new changesets') % (self.root, count)
else:
s = ctx.description().lstrip().split('\n', 1)[0].rstrip()
subject = '%s: %s' % (self.root, s)
maxsubject = int(self.ui.config('notify', 'maxsubject'))
if maxsubject:
subject = stringutil.ellipsis(subject, maxsubject)
msg[r'Subject'] = encoding.strfromlocal(
mail.headencode(self.ui, subject, self.charsets, self.test))
# try to make message have proper sender
if not sender:
sender = self.ui.config('email', 'from') or self.ui.username()
if '@' not in sender or '@localhost' in sender:
sender = self.fixmail(sender)
msg[r'From'] = encoding.strfromlocal(
mail.addressencode(self.ui, sender, self.charsets, self.test))
msg[r'X-Hg-Notification'] = r'changeset %s' % ctx
if not msg[r'Message-Id']:
msg[r'Message-Id'] = encoding.strfromlocal(
'<hg.%s.%d.%d@%s>' % (ctx, int(time.time()),
hash(self.repo.root),
encoding.strtolocal(socket.getfqdn())))
msg[r'To'] = encoding.strfromlocal(', '.join(sorted(subs)))
msgtext = encoding.strtolocal(msg.as_string())
if self.test:
self.ui.write(msgtext)
if not msgtext.endswith('\n'):
self.ui.write('\n')
else:
self.ui.status(_('notify: sending %d subscribers %d changes\n') %
(len(subs), count))
mail.sendmail(self.ui, stringutil.email(msg[r'From']),
subs, msgtext, mbox=self.mbox)
def diff(self, ctx, ref=None):
maxdiff = int(self.ui.config('notify', 'maxdiff'))
prev = ctx.p1().node()
if ref:
ref = ref.node()
else:
ref = ctx.node()
diffopts = patch.diffallopts(self.ui)
diffopts.showfunc = self.showfunc
chunks = patch.diff(self.repo, prev, ref, opts=diffopts)
difflines = ''.join(chunks).splitlines()
if self.ui.configbool('notify', 'diffstat'):
maxdiffstat = int(self.ui.config('notify', 'maxdiffstat'))
s = patch.diffstat(difflines)
# s may be nil, don't include the header if it is
if s:
if maxdiffstat >= 0 and s.count("\n") > maxdiffstat + 1:
s = s.split("\n")
msg = _('\ndiffstat (truncated from %d to %d lines):\n\n')
self.ui.write(msg % (len(s) - 2, maxdiffstat))
self.ui.write("\n".join(s[:maxdiffstat] + s[-2:]))
else:
self.ui.write(_('\ndiffstat:\n\n%s') % s)
if maxdiff == 0:
return
elif maxdiff > 0 and len(difflines) > maxdiff:
msg = _('\ndiffs (truncated from %d to %d lines):\n\n')
self.ui.write(msg % (len(difflines), maxdiff))
difflines = difflines[:maxdiff]
elif difflines:
self.ui.write(_('\ndiffs (%d lines):\n\n') % len(difflines))
self.ui.write("\n".join(difflines))
def hook(ui, repo, hooktype, node=None, source=None, **kwargs):
'''send email notifications to interested subscribers.
if used as changegroup hook, send one email for all changesets in
changegroup. else send one email per changeset.'''
n = notifier(ui, repo, hooktype)
ctx = repo.unfiltered()[node]
if not n.subs:
ui.debug('notify: no subscribers to repository %s\n' % n.root)
return
if n.skipsource(source):
ui.debug('notify: changes have source "%s" - skipping\n' % source)
return
ui.pushbuffer()
data = ''
count = 0
author = ''
if hooktype == 'changegroup' or hooktype == 'outgoing':
for rev in repo.changelog.revs(start=ctx.rev()):
if n.node(repo[rev]):
count += 1
if not author:
author = repo[rev].user()
else:
data += ui.popbuffer()
ui.note(_('notify: suppressing notification for merge %d:%s\n')
% (rev, repo[rev].hex()[:12]))
ui.pushbuffer()
if count:
n.diff(ctx, repo['tip'])
elif ctx.rev() in repo:
if not n.node(ctx):
ui.popbuffer()
ui.note(_('notify: suppressing notification for merge %d:%s\n') %
(ctx.rev(), ctx.hex()[:12]))
return
count += 1
n.diff(ctx)
if not author:
author = ctx.user()
data += ui.popbuffer()
fromauthor = ui.config('notify', 'fromauthor')
if author and fromauthor:
data = '\n'.join(['From: %s' % author, data])
if count:
n.send(ctx, count, data)