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+#!/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. If there's nothing unusual about your hosting setup,
+# you can specify the project name with a -p option and avoid having
+# to modify this script. 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 (other than possibly a -p
+# option). 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 becxause it lists
+# from most recent to oldest.
+#
+# /path/to/ciabot.py ${refname} $(git rev-list ${oldhead}..${newhead} | tac)
+#
+# Note: this script uses mail, not XML-RPC, in order to avoid stalling
+# until timeout when the CIA XML-RPC server is down.
+#
+
+#
+# The project as known to CIA. You will either want to change this
+# or invoke the script with a -p option to set it.
+#
+project=None
+
+#
+# You may not need to change these:
+#
+import os, sys, commands, socket, urllib
+
+# Name of the repository.
+# You can hardwire this to make the script faster.
+repo = os.path.basename(os.getcwd())
+
+# Fully-qualified domain name of this host.
+# You can hardwire this to make the script faster.
+host = socket.getfqdn()
+
+# 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>%(gitver)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:
+#
+
+# Addresses for the e-mail. The from address is a dummy, since CIA
+# will never reply to this mail.
+fromaddr = "CIABOT-NOREPLY@" + host
+toaddr = "cia@cia.navi.cx"
+
+# 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"
+
+def do(command):
+ return commands.getstatusoutput(command)[1]
+
+def report(refname, merged):
+ "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 shortnane for the revision
+ rev = do("git describe '"+ merged +"' 2>/dev/null") or merged[:12]
+
+ # Extract the neta-information for the commit
+ rawcommit = do("git cat-file commit " + merged)
+ files=do("git diff-tree -r --name-only '"+ merged +"' | sed -e '1d' -e 's-.*-<file>&</file>-'")
+ inheader = True
+ headers = {}
+ logmsg = ""
+ for line in rawcommit.split("\n"):
+ if inheader:
+ if line:
+ fields = line.split()
+ headers[fields[0]] = " ".join(fields[1:])
+ else:
+ inheader = False
+ else:
+ logmsg = line
+ break
+ (author, ts) = headers["author"].split(">")
+
+ # This discards the part of the authors addrsss after @.
+ # Might be bnicece 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 = 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
+
+ message = '''\
+Message-ID: <%(merged)s.%(author)s@%(project)s>
+From: %(fromaddr)s
+To: %(toaddr)s
+Content-type: text/xml
+Subject: DeliverXML
+
+%(out)s''' % locals()
+
+ return message
+
+if __name__ == "__main__":
+ import getopt
+
+ try:
+ (options, arguments) = getopt.getopt(sys.argv[1:], "np:V")
+ except getopt.GetoptError, msg:
+ print "ciabot.py: " + str(msg)
+ raise SystemExit, 1
+
+ mailit = True
+ for (switch, val) in options:
+ if switch == '-p':
+ project = val
+ elif switch == '-n':
+ mailit = False
+ elif switch == '-V':
+ print "ciabot.py: version 3.2"
+ sys.exit(0)
+
+ # Cough and die if user has not specified a project
+ if not project:
+ sys.stderr.write("ciabot.py: no project specified, bailing out.\n")
+ sys.exit(1)
+
+ # We'll need the git version number.
+ gitver = do("git --version").split()[0]
+
+ 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 mailit:
+ import smtplib
+ server = smtplib.SMTP('localhost')
+
+ for merged in merges:
+ message = report(refname, merged)
+ if mailit:
+ server.sendmail(fromaddr, [toaddr], message)
+ else:
+ print message
+
+ if mailit:
+ server.quit()
+
+#End