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notify.py
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# 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 notifications at commit/push time
Subscriptions can be managed through a hgrc file. Default mode is to
print messages to stdout, for testing and configuring.
To use, configure the notify extension and enable it in hgrc like
this::
[extensions]
notify =
[hooks]
# one email for each incoming changeset
incoming.notify = python:hgext.notify.hook
# batch emails when many changesets incoming at one time
changegroup.notify = python:hgext.notify.hook
[notify]
# config items go here
Required configuration items::
config = /path/to/file # file containing subscriptions
Optional configuration items::
test = True # print messages to stdout for testing
strip = 3 # number of slashes to strip for url paths
domain = example.com # domain to use if committer missing domain
style = ... # style file to use when formatting email
template = ... # template to use when formatting email
incoming = ... # template to use when run as incoming hook
changegroup = ... # template when run as changegroup hook
maxdiff = 300 # max lines of diffs to include (0=none, -1=all)
maxsubject = 67 # truncate subject line longer than this
diffstat = True # add a diffstat before the diff content
sources = serve # notify if source of incoming changes in this list
# (serve == ssh or http, push, pull, bundle)
merge = False # send notification for merges (default True)
[email]
from = user@host.com # email address to send as if none given
[web]
baseurl = http://hgserver/... # root of hg web site for browsing commits
The notify config file has same format as a regular hgrc file. It has
two sections so you can express subscriptions in whatever way is
handier for you.
::
[usersubs]
# key is subscriber email, value is ","-separated list of glob patterns
user@host = pattern
[reposubs]
# key is glob pattern, value is ","-separated list of subscriber emails
pattern = user@host
Glob patterns are matched against path to repository root.
If you like, you can put notify config file in repository that users
can push changes to, they can manage their own subscriptions.
'''
from mercurial.i18n import _
from mercurial import patch, cmdutil, templater, util, mail
import email.Parser, email.Errors, fnmatch, socket, time
# template for single changeset can include email headers.
single_template = '''
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 = '''
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', 0))
self.root = self.strip(self.repo.root)
self.domain = self.ui.config('notify', 'domain')
self.test = self.ui.configbool('notify', 'test', True)
self.charsets = mail._charsets(self.ui)
self.subs = self.subscribers()
self.merge = self.ui.configbool('notify', 'merge', True)
mapfile = self.ui.config('notify', 'style')
template = (self.ui.config('notify', hooktype) or
self.ui.config('notify', 'template'))
self.t = cmdutil.changeset_templater(self.ui, self.repo,
False, None, mapfile, False)
if not mapfile and not template:
template = deftemplates.get(hooktype) or single_template
if template:
template = templater.parsestring(template, quoted=False)
self.t.use_template(template)
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 = util.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 fnmatch.fnmatch(self.repo.root, pat.strip()):
subs.add(self.fixmail(user))
for pat, users in self.ui.configitems('reposubs'):
if fnmatch.fnmatch(self.repo.root, pat):
for user in users.split(','):
subs.add(self.fixmail(user))
return [mail.addressencode(self.ui, s, self.charsets, self.test)
for s in sorted(subs)]
def url(self, path=None):
return self.ui.config('web', 'baseurl') + (path or self.root)
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', 'serve').split()
return source not in ok_sources
def send(self, ctx, count, data):
'''send message.'''
p = email.Parser.Parser()
try:
msg = p.parsestr(data)
except email.Errors.MessageParseError, inst:
raise util.Abort(inst)
# store sender and subject
sender, subject = msg['From'], msg['Subject']
del msg['From'], msg['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['Date'] = util.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', 67))
if maxsubject and len(subject) > maxsubject:
subject = subject[:maxsubject - 3] + '...'
msg['Subject'] = 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['From'] = mail.addressencode(self.ui, sender,
self.charsets, self.test)
msg['X-Hg-Notification'] = 'changeset %s' % ctx
if not msg['Message-Id']:
msg['Message-Id'] = ('<hg.%s.%s.%s@%s>' %
(ctx, int(time.time()),
hash(self.repo.root), socket.getfqdn()))
msg['To'] = ', '.join(self.subs)
msgtext = 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(self.subs), count))
mail.sendmail(self.ui, util.email(msg['From']),
self.subs, msgtext)
def diff(self, ctx, ref=None):
maxdiff = int(self.ui.config('notify', 'maxdiff', 300))
prev = ctx.parents()[0].node()
ref = ref and ref.node() or ctx.node()
chunks = patch.diff(self.repo, prev, ref, opts=patch.diffopts(self.ui))
difflines = ''.join(chunks).splitlines()
if self.ui.configbool('notify', 'diffstat', True):
s = patch.diffstat(difflines)
# s may be nil, don't include the header if it is
if s:
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[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
if hooktype == 'changegroup':
start, end = ctx.rev(), len(repo)
for rev in xrange(start, end):
if n.node(repo[rev]):
count += 1
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'])
else:
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)
data += ui.popbuffer()
if count:
n.send(ctx, count, data)