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#!/usr/bin/env python
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# Copyright (c) 2010 Eric S. Raymond <esr@thyrsus.com>
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# Distributed under BSD terms.
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#
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# This script contains porcelain and porcelain byproducts.
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# It's Python because the Python standard libraries avoid portability/security
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# issues raised by callouts in the ancestral Perl and sh scripts. It should
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# be compatible back to Python 2.1.5
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#
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# usage: ciabot.py [-V] [-n] [-p projectname] [refname [commits...]]
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#
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# This script is meant to be run either in a post-commit hook or in an
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# update hook. If there's nothing unusual about your hosting setup,
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# you can specify the project name with a -p option and avoid having
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# to modify this script. Try it with -n to see the notification mail
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# dumped to stdout and verify that it looks sane. With -V it dumps its
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# version and exits.
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#
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# In post-commit, run it without arguments (other than possibly a -p
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# option). It will query for current HEAD and the latest commit ID to
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# get the information it needs.
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#
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# In update, call it with a refname followed by a list of commits:
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# You want to reverse the order git rev-list emits becxause it lists
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# from most recent to oldest.
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#
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# /path/to/ciabot.py ${refname} $(git rev-list ${oldhead}..${newhead} | tac)
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#
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# Note: this script uses mail, not XML-RPC, in order to avoid stalling
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# until timeout when the CIA XML-RPC server is down.
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#
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#
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# The project as known to CIA. You will either want to change this
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# or invoke the script with a -p option to set it.
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#
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project=None
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#
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# You may not need to change these:
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#
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import os, sys, commands, socket, urllib
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# Name of the repository.
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# You can hardwire this to make the script faster.
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repo = os.path.basename(os.getcwd())
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# Fully-qualified domain name of this host.
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# You can hardwire this to make the script faster.
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host = socket.getfqdn()
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# Changeset URL prefix for your repo: when the commit ID is appended
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# to this, it should point at a CGI that will display the commit
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# through gitweb or something similar. The defaults will probably
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# work if you have a typical gitweb/cgit setup.
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#
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#urlprefix="http://%(host)s/cgi-bin/gitweb.cgi?p=%(repo)s;a=commit;h="
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urlprefix="http://%(host)s/cgi-bin/cgit.cgi/%(repo)s/commit/?id="
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# The service used to turn your gitwebbish URL into a tinyurl so it
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# will take up less space on the IRC notification line.
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tinyifier = "http://tinyurl.com/api-create.php?url="
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# The template used to generate the XML messages to CIA. You can make
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# visible changes to the IRC-bot notification lines by hacking this.
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# The default will produce a notfication line that looks like this:
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#
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# ${project}: ${author} ${repo}:${branch} * ${rev} ${files}: ${logmsg} ${url}
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#
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# By omitting $files you can collapse the files part to a single slash.
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xml = '''\
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<message>
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<generator>
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<name>CIA Python client for Git</name>
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<version>%(gitver)s</version>
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<url>%(generator)s</url>
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</generator>
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<source>
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<project>%(project)s</project>
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<branch>%(repo)s:%(branch)s</branch>
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</source>
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<timestamp>%(ts)s</timestamp>
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<body>
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<commit>
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<author>%(author)s</author>
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<revision>%(rev)s</revision>
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<files>
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%(files)s
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</files>
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<log>%(logmsg)s %(url)s</log>
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<url>%(url)s</url>
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</commit>
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</body>
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</message>
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'''
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#
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# No user-serviceable parts below this line:
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#
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# Addresses for the e-mail. The from address is a dummy, since CIA
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# will never reply to this mail.
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fromaddr = "CIABOT-NOREPLY@" + host
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toaddr = "cia@cia.navi.cx"
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# Identify the generator script.
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# Should only change when the script itself gets a new home and maintainer.
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generator="http://www.catb.org/~esr/ciabot.py"
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def do(command):
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return commands.getstatusoutput(command)[1]
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def report(refname, merged):
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"Generate a commit notification to be reported to CIA"
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# Try to tinyfy a reference to a web view for this commit.
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try:
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url = open(urllib.urlretrieve(tinyifier + urlprefix + merged)[0]).read()
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except:
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url = urlprefix + merged
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branch = os.path.basename(refname)
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# Compute a shortnane for the revision
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rev = do("git describe '"+ merged +"' 2>/dev/null") or merged[:12]
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# Extract the neta-information for the commit
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rawcommit = do("git cat-file commit " + merged)
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files=do("git diff-tree -r --name-only '"+ merged +"' | sed -e '1d' -e 's-.*-<file>&</file>-'")
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inheader = True
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headers = {}
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logmsg = ""
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for line in rawcommit.split("\n"):
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if inheader:
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if line:
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fields = line.split()
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headers[fields[0]] = " ".join(fields[1:])
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else:
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inheader = False
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else:
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logmsg = line
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break
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(author, ts) = headers["author"].split(">")
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# This discards the part of the authors addrsss after @.
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# Might be bnicece to ship the full email address, if not
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# for spammers' address harvesters - getting this wrong
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# would make the freenode #commits channel into harvester heaven.
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author = author.replace("<", "").split("@")[0].split()[-1]
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# This ignores the timezone. Not clear what to do with it...
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ts = ts.strip().split()[0]
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context = locals()
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context.update(globals())
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out = xml % context
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message = '''\
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Message-ID: <%(merged)s.%(author)s@%(project)s>
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From: %(fromaddr)s
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To: %(toaddr)s
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Content-type: text/xml
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Subject: DeliverXML
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%(out)s''' % locals()
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return message
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if __name__ == "__main__":
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import getopt
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try:
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(options, arguments) = getopt.getopt(sys.argv[1:], "np:V")
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except getopt.GetoptError, msg:
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print "ciabot.py: " + str(msg)
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raise SystemExit, 1
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mailit = True
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for (switch, val) in options:
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if switch == '-p':
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project = val
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elif switch == '-n':
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mailit = False
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elif switch == '-V':
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print "ciabot.py: version 3.2"
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sys.exit(0)
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# Cough and die if user has not specified a project
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if not project:
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sys.stderr.write("ciabot.py: no project specified, bailing out.\n")
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sys.exit(1)
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# We'll need the git version number.
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gitver = do("git --version").split()[0]
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urlprefix = urlprefix % globals()
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# The script wants a reference to head followed by the list of
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# commit ID to report about.
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if len(arguments) == 0:
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refname = do("git symbolic-ref HEAD 2>/dev/null")
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merges = [do("git rev-parse HEAD")]
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else:
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refname = arguments[0]
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merges = arguments[1:]
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if mailit:
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import smtplib
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server = smtplib.SMTP('localhost')
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for merged in merges:
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message = report(refname, merged)
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if mailit:
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server.sendmail(fromaddr, [toaddr], message)
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else:
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print message
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if mailit:
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server.quit()
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#End
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