contrib/ciabot/ciabot.py - jrn/git - Git at Google

 #!/usr/bin/env python
 # Copyright (c) 2010 Eric S. Raymond <esr@thyrsus.com>
 # Distributed under BSD terms.
 #
 # This script contains porcelain and porcelain byproducts.
 # It's Python because the Python standard libraries avoid portability/security
 # issues raised by callouts in the ancestral Perl and sh scripts.  It should
 # be compatible back to Python 2.1.5
 #
 # usage: ciabot.py [-V] [-n] [-p projectname]  [refname [commits...]]
 #
 # This script is meant to be run either in a post-commit hook or in an
 # update hook. Try it with -n to see the notification mail dumped to
 # stdout and verify that it looks sane. With -V it dumps its version
 # and exits.
 #
 # In post-commit, run it without arguments. It will query for
 # current HEAD and the latest commit ID to get the information it
 # needs.
 #
 # In update, call it with a refname followed by a list of commits:
 # You want to reverse the order git rev-list emits because it lists
 # from most recent to oldest.
 #
 # /path/to/ciabot.py ${refname} $(git rev-list ${oldhead}..${newhead} | tac)
 #
 # Configuration variables affecting this script:
 #
 # ciabot.project = name of the project
 # ciabot.repo = name of the project repo for gitweb/cgit purposes
 # ciabot.xmlrpc  = if true (default), ship notifications via XML-RPC
 # ciabot.revformat = format in which the revision is shown
 #
 # ciabot.project defaults to the directory name of the repository toplevel.
 # ciabot.repo defaults to ciabot.project lowercased.
 #
 # This means that in the normal case you need not do any configuration at all,
 # but setting the project name will speed it up slightly.
 #
 # The revformat variable may have the following values
 # raw -> full hex ID of commit
 # short -> first 12 chars of hex ID
 # describe = -> describe relative to last tag, falling back to short
 # The default is 'describe'.
 #
 # Note: the CIA project now says only XML-RPC is reliable, so
 # we default to that.
 #

 import os, sys, commands, socket, urllib
 from xml.sax.saxutils import escape

 # Changeset URL prefix for your repo: when the commit ID is appended
 # to this, it should point at a CGI that will display the commit
 # through gitweb or something similar. The defaults will probably
 # work if you have a typical gitweb/cgit setup.
 #
 #urlprefix="http://%(host)s/cgi-bin/gitweb.cgi?p=%(repo)s;a=commit;h="
 urlprefix="http://%(host)s/cgi-bin/cgit.cgi/%(repo)s/commit/?id="

 # The service used to turn your gitwebbish URL into a tinyurl so it
 # will take up less space on the IRC notification line.
 tinyifier = "http://tinyurl.com/api-create.php?url="

 # The template used to generate the XML messages to CIA.  You can make
 # visible changes to the IRC-bot notification lines by hacking this.
 # The default will produce a notfication line that looks like this:
 #
 # ${project}: ${author} ${repo}:${branch} * ${rev} ${files}: ${logmsg} ${url}
 #
 # By omitting $files you can collapse the files part to a single slash.
 xml = '''\
 <message>
   <generator>
     <name>CIA Python client for Git</name>
     <version>%(version)s</version>
     <url>%(generator)s</url>
   </generator>
   <source>
     <project>%(project)s</project>
     <branch>%(repo)s:%(branch)s</branch>
   </source>
   <timestamp>%(ts)s</timestamp>
   <body>
     <commit>
       <author>%(author)s</author>
       <revision>%(rev)s</revision>
       <files>
         %(files)s
       </files>
       <log>%(logmsg)s %(url)s</log>
       <url>%(url)s</url>
     </commit>
   </body>
 </message>
 '''

 #
 # No user-serviceable parts below this line:
 #

 # Where to ship e-mail notifications.
 toaddr = "cia@cia.vc"

 # Identify the generator script.
 # Should only change when the script itself gets a new home and maintainer.
 generator = "http://www.catb.org/~esr/ciabot.py"
 version = "3.6"

 def do(command):
     return commands.getstatusoutput(command)[1]

 def report(refname, merged, xmlrpc=True):
     "Generate a commit notification to be reported to CIA"

     # Try to tinyfy a reference to a web view for this commit.
     try:
         url = open(urllib.urlretrieve(tinyifier + urlprefix + merged)[0]).read()
     except:
         url = urlprefix + merged

     branch = os.path.basename(refname)

     # Compute a description for the revision
     if revformat == 'raw':
         rev = merged
     elif revformat == 'short':
         rev = ''
     else: # revformat == 'describe'
         rev = do("git describe %s 2>/dev/null" % merged)
     if not rev:
         rev = merged[:12]

     # Extract the meta-information for the commit
     files=do("git diff-tree -r --name-only '"+ merged +"' | sed -e '1d' -e 's-.*-<file>&</file>-'")
     metainfo = do("git log -1 '--pretty=format:%an <%ae>%n%at%n%s' " + merged)
     (author, ts, logmsg) = metainfo.split("\n")
     logmsg = escape(logmsg)

     # This discards the part of the author's address after @.
     # Might be be nice to ship the full email address, if not
     # for spammers' address harvesters - getting this wrong
     # would make the freenode #commits channel into harvester heaven.
     author = escape(author.replace("<", "").split("@")[0].split()[-1])

     # This ignores the timezone.  Not clear what to do with it...
     ts = ts.strip().split()[0]

     context = locals()
     context.update(globals())

     out = xml % context
     mail = '''\
 Message-ID: <%(merged)s.%(author)s@%(project)s>
 From: %(fromaddr)s
 To: %(toaddr)s
 Content-type: text/xml
 Subject: DeliverXML

 %(out)s''' % locals()

     if xmlrpc:
         return out
     else:
         return mail

 if __name__ == "__main__":
     import getopt

     # Get all config variables
     revformat = do("git config --get ciabot.revformat")
     project = do("git config --get ciabot.project")
     repo = do("git config --get ciabot.repo")
     xmlrpc = do("git config --get ciabot.xmlrpc")
     xmlrpc = not (xmlrpc and xmlrpc == "false")

     host = socket.getfqdn()
     fromaddr = "CIABOT-NOREPLY@" + host

     try:
         (options, arguments) = getopt.getopt(sys.argv[1:], "np:xV")
     except getopt.GetoptError, msg:
         print "ciabot.py: " + str(msg)
         raise SystemExit, 1

     notify = True
     for (switch, val) in options:
         if switch == '-p':
             project = val
         elif switch == '-n':
             notify = False
         elif switch == '-x':
             xmlrpc = True
         elif switch == '-V':
             print "ciabot.py: version", version
             sys.exit(0)

     # The project variable defaults to the name of the repository toplevel.
     if not project:
         here = os.getcwd()
         while True:
             if os.path.exists(os.path.join(here, ".git")):
                 project = os.path.basename(here)
                 break
             elif here == '/':
                 sys.stderr.write("ciabot.py: no .git below root!\n")
                 sys.exit(1)
             here = os.path.dirname(here)

     if not repo:
         repo = project.lower()

     urlprefix = urlprefix % globals()

     # The script wants a reference to head followed by the list of
     # commit ID to report about.
     if len(arguments) == 0:
         refname = do("git symbolic-ref HEAD 2>/dev/null")
         merges = [do("git rev-parse HEAD")]
     else:
         refname = arguments[0]
         merges = arguments[1:]

     if notify:
         if xmlrpc:
             import xmlrpclib
             server = xmlrpclib.Server('http://cia.vc/RPC2');
         else:
             import smtplib
             server = smtplib.SMTP('localhost')

     for merged in merges:
         message = report(refname, merged, xmlrpc)
         if not notify:
             print message
         elif xmlrpc:
             try:
                 # RPC server is flaky, this can fail due to timeout.
                 server.hub.deliver(message)
             except socket.error, e:
                 sys.stderr.write("%s\n" % e)
         else:
             server.sendmail(fromaddr, [toaddr], message)

     if notify:
         if not xmlrpc:
             server.quit()

 #End
	#!/usr/bin/env python
	# Copyright (c) 2010 Eric S. Raymond <esr@thyrsus.com>
	# Distributed under BSD terms.
	#
	# This script contains porcelain and porcelain byproducts.
	# It's Python because the Python standard libraries avoid portability/security
	# issues raised by callouts in the ancestral Perl and sh scripts. It should
	# be compatible back to Python 2.1.5
	#
	# usage: ciabot.py [-V] [-n] [-p projectname] [refname [commits...]]
	#
	# This script is meant to be run either in a post-commit hook or in an
	# update hook. Try it with -n to see the notification mail dumped to
	# stdout and verify that it looks sane. With -V it dumps its version
	# and exits.
	#
	# In post-commit, run it without arguments. It will query for
	# current HEAD and the latest commit ID to get the information it
	# needs.
	#
	# In update, call it with a refname followed by a list of commits:
	# You want to reverse the order git rev-list emits because it lists
	# from most recent to oldest.
	#
	# /path/to/ciabot.py ${refname} $(git rev-list ${oldhead}..${newhead} \| tac)
	#
	# Configuration variables affecting this script:
	#
	# ciabot.project = name of the project
	# ciabot.repo = name of the project repo for gitweb/cgit purposes
	# ciabot.xmlrpc = if true (default), ship notifications via XML-RPC
	# ciabot.revformat = format in which the revision is shown
	#
	# ciabot.project defaults to the directory name of the repository toplevel.
	# ciabot.repo defaults to ciabot.project lowercased.
	#
	# This means that in the normal case you need not do any configuration at all,
	# but setting the project name will speed it up slightly.
	#
	# The revformat variable may have the following values
	# raw -> full hex ID of commit
	# short -> first 12 chars of hex ID
	# describe = -> describe relative to last tag, falling back to short
	# The default is 'describe'.
	#
	# Note: the CIA project now says only XML-RPC is reliable, so
	# we default to that.
	#

	import os, sys, commands, socket, urllib
	from xml.sax.saxutils import escape

	# Changeset URL prefix for your repo: when the commit ID is appended
	# to this, it should point at a CGI that will display the commit
	# through gitweb or something similar. The defaults will probably
	# work if you have a typical gitweb/cgit setup.
	#
	#urlprefix="http://%(host)s/cgi-bin/gitweb.cgi?p=%(repo)s;a=commit;h="
	urlprefix="http://%(host)s/cgi-bin/cgit.cgi/%(repo)s/commit/?id="

	# The service used to turn your gitwebbish URL into a tinyurl so it
	# will take up less space on the IRC notification line.
	tinyifier = "http://tinyurl.com/api-create.php?url="

	# The template used to generate the XML messages to CIA. You can make
	# visible changes to the IRC-bot notification lines by hacking this.
	# The default will produce a notfication line that looks like this:
	#
	# ${project}: ${author} ${repo}:${branch} * ${rev} ${files}: ${logmsg} ${url}
	#
	# By omitting $files you can collapse the files part to a single slash.
	xml = '''\
	<message>
	<generator>
	<name>CIA Python client for Git</name>
	<version>%(version)s</version>
	<url>%(generator)s</url>
	</generator>
	<source>
	<project>%(project)s</project>
	<branch>%(repo)s:%(branch)s</branch>
	</source>
	<timestamp>%(ts)s</timestamp>
	<body>
	<commit>
	<author>%(author)s</author>
	<revision>%(rev)s</revision>
	<files>
	%(files)s
	</files>
	<log>%(logmsg)s %(url)s</log>
	<url>%(url)s</url>
	</commit>
	</body>
	</message>
	'''

	#
	# No user-serviceable parts below this line:
	#

	# Where to ship e-mail notifications.
	toaddr = "cia@cia.vc"

	# Identify the generator script.
	# Should only change when the script itself gets a new home and maintainer.
	generator = "http://www.catb.org/~esr/ciabot.py"
	version = "3.6"

	def do(command):
	return commands.getstatusoutput(command)[1]

	def report(refname, merged, xmlrpc=True):
	"Generate a commit notification to be reported to CIA"

	# Try to tinyfy a reference to a web view for this commit.
	try:
	url = open(urllib.urlretrieve(tinyifier + urlprefix + merged)[0]).read()
	except:
	url = urlprefix + merged

	branch = os.path.basename(refname)

	# Compute a description for the revision
	if revformat == 'raw':
	rev = merged
	elif revformat == 'short':
	rev = ''
	else: # revformat == 'describe'
	rev = do("git describe %s 2>/dev/null" % merged)
	if not rev:
	rev = merged[:12]

	# Extract the meta-information for the commit
	files=do("git diff-tree -r --name-only '"+ merged +"' \| sed -e '1d' -e 's-.*-<file>&</file>-'")
	metainfo = do("git log -1 '--pretty=format:%an <%ae>%n%at%n%s' " + merged)
	(author, ts, logmsg) = metainfo.split("\n")
	logmsg = escape(logmsg)

	# This discards the part of the author's address after @.
	# Might be be nice to ship the full email address, if not
	# for spammers' address harvesters - getting this wrong
	# would make the freenode #commits channel into harvester heaven.
	author = escape(author.replace("<", "").split("@")[0].split()[-1])

	# This ignores the timezone. Not clear what to do with it...
	ts = ts.strip().split()[0]

	context = locals()
	context.update(globals())

	out = xml % context
	mail = '''\
	Message-ID: <%(merged)s.%(author)s@%(project)s>
	From: %(fromaddr)s
	To: %(toaddr)s
	Content-type: text/xml
	Subject: DeliverXML

	%(out)s''' % locals()

	if xmlrpc:
	return out
	else:
	return mail

	if __name__ == "__main__":
	import getopt

	# Get all config variables
	revformat = do("git config --get ciabot.revformat")
	project = do("git config --get ciabot.project")
	repo = do("git config --get ciabot.repo")
	xmlrpc = do("git config --get ciabot.xmlrpc")
	xmlrpc = not (xmlrpc and xmlrpc == "false")

	host = socket.getfqdn()
	fromaddr = "CIABOT-NOREPLY@" + host

	try:
	(options, arguments) = getopt.getopt(sys.argv[1:], "np:xV")
	except getopt.GetoptError, msg:
	print "ciabot.py: " + str(msg)
	raise SystemExit, 1

	notify = True
	for (switch, val) in options:
	if switch == '-p':
	project = val
	elif switch == '-n':
	notify = False
	elif switch == '-x':
	xmlrpc = True
	elif switch == '-V':
	print "ciabot.py: version", version
	sys.exit(0)

	# The project variable defaults to the name of the repository toplevel.
	if not project:
	here = os.getcwd()
	while True:
	if os.path.exists(os.path.join(here, ".git")):
	project = os.path.basename(here)
	break
	elif here == '/':
	sys.stderr.write("ciabot.py: no .git below root!\n")
	sys.exit(1)
	here = os.path.dirname(here)

	if not repo:
	repo = project.lower()

	urlprefix = urlprefix % globals()

	# The script wants a reference to head followed by the list of
	# commit ID to report about.
	if len(arguments) == 0:
	refname = do("git symbolic-ref HEAD 2>/dev/null")
	merges = [do("git rev-parse HEAD")]
	else:
	refname = arguments[0]
	merges = arguments[1:]

	if notify:
	if xmlrpc:
	import xmlrpclib
	server = xmlrpclib.Server('http://cia.vc/RPC2');
	else:
	import smtplib
	server = smtplib.SMTP('localhost')

	for merged in merges:
	message = report(refname, merged, xmlrpc)
	if not notify:
	print message
	elif xmlrpc:
	try:
	# RPC server is flaky, this can fail due to timeout.
	server.hub.deliver(message)
	except socket.error, e:
	sys.stderr.write("%s\n" % e)
	else:
	server.sendmail(fromaddr, [toaddr], message)

	if notify:
	if not xmlrpc:
	server.quit()

	#End