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 #!/usr/bin/python

 # This Source Code Form is subject to the terms of the Mozilla Public

 # License, v. 2.0. If a copy of the MPL was not distributed with this

 # file, You can obtain one at http://mozilla.org/MPL/2.0/.

 from optparse import OptionParser

 import sys

 import re

 o = OptionParser()

 o.add_option("--buildid", dest="buildid")

 o.add_option("--version", dest="version")

 (options, args) = o.parse_args()

 if not options.buildid:

     print >>sys.stderr, "--buildid is required"

     sys.exit(1)

 if not options.version:

     print >>sys.stderr, "--version is required"

     sys.exit(1)

 # We want to build a version number that matches the format allowed for

 # CFBundleVersion (nnnnn[.nn[.nn]]). We'll incorporate both the version

 # number as well as the date, so that it changes at least daily (for nightly

 # builds), but also so that newly-built older versions (e.g. beta build) aren't

 # considered "newer" than previously-built newer versions (e.g. a trunk nightly)

 buildid = open(options.buildid, 'r').read()

 # extract only the major version (i.e. "14" from "14.0b1")

 majorVersion = re.match(r'^(\d+)[^\d].*', options.version).group(1)

 # last two digits of the year

 twodigityear = buildid[2:4]

 month = buildid[4:6]

 if month[0] == '0':

   month = month[1]

 day = buildid[6:8]

 if day[0] == '0':

   day = day[1]

 print '%s.%s.%s' % (majorVersion + twodigityear, month, day)