Automatic Build Numbers for XCode

git.bash

#!/bin/bash

BASE_VERSION=572
VERSION_NUMBER=$((`git describe --match SVN-Import | ack "([0-9]+)-[^-]+$" --output='$1'` + $BASE_VERSION))

git.py

#!/usr/bin/env python

import os

BASE_TAG = "SVN-Import"
BASE_VERSION = 572

# note that BASE_VERSION is for projects that were imported from SVN and want to maintain a constant
# version number history. Not the best solution, but it works (I know it is possible to pull svn 
# commits into git, but this project did not)

def increaseVersion():
    from AppKit import NSMutableDictionary

    # result: SVN-Import-12-gb63066a
    version = os.popen('git describe --match ' + BASE_TAG).read()
    version = version.split('-')[-2]
    
    # failing to cost the version to string might cause issues with Sparkle
    projectPlist = NSMutableDictionary.dictionaryWithContentsOfFile_('Resources/Info.plist')
    projectPlist['CFBundleVersion'] = str(int(version) + BASE_VERSION)
    projectPlist.writeToFile_atomically_('Resources/Info.plist', True)

if __name__ == '__main__' and os.environ["CONFIGURATION"] != "Debug":
    increaseVersion()

svn.py

#!/usr/bin/python

import os, platform

from AppKit import NSMutableDictionary

def increaseVersion():
    # reading svn version
    version = os.popen('svnversion -n').read()
    
    version = version.split(':')[-1]
    
    if not version[-1].isdigit():
        version = version[:-1]
    
    # reading info.plist file
    projectPlist = NSMutableDictionary.dictionaryWithContentsOfFile_('Resources/Info.plist')
    
    # setting the svn version for CFBundleVersion key
    projectPlist['CFBundleVersion'] = version
    projectPlist.writeToFile_atomically_('Resources/Info.plist', True)

if __name__ == '__main__':
    increaseVersion()