Get latest Chromium for OSX from http://chromium.org

chromium updater.py

#!/usr/bin/env python
# Chromium Updater
# Download and install the newest Chromium build from http://chromium.org
# on Mac OS X.

import urllib2, os.path, sys

BASE_URL = 'http://build.chromium.org/buildbot/snapshots/chromium-rel-mac/'
UPDATE_URL = 'http://build.chromium.org/buildbot/snapshots/chromium-rel-mac/LATEST'
DOWNLOAD_PATH = os.path.expanduser('~/Downloads/Chromium Updater')

def latest_build():
	return urllib2.urlopen(UPDATE_URL).read()

def install():
	print 'Extracting files ...'
	os.system('unzip -q chrome-mac.zip')
	print 'Removing old files. You might be asked to enter your password.'
	os.system('sudo rm -rf /Applications/Chromium.app')
	print 'Installing files. You might be asked to enter your password.'
	os.system('sudo cp -r chrome-mac/ /Applications/')
	print 'Removing old files ...'
	os.system('rm -rf chrome-mac')
	print 'All done!'

def update():
	print 'Looking for latest build ...'
	build = latest_build()
	print 'Latest build is %s.' % (build)
	build_download_path = os.path.join(DOWNLOAD_PATH, build)

	if not os.path.exists(DOWNLOAD_PATH):
		os.mkdir(DOWNLOAD_PATH)
	
	if not os.path.exists(build_download_path) :
		os.mkdir(build_download_path)

	if os.path.exists(os.path.join(build_download_path, 'chrome-mac.zip')):
		print 'You\'re using the newest build. Reinstalling this build ...'
		os.chdir(build_download_path)
		install()
		print 'Reinstalled revision %s' % (build)
		sys.exit()
	
	os.chdir(build_download_path)
	download_url = BASE_URL + build + '/' + 'chrome-mac.zip'
	command = 'curl ' + download_url + ' -o chrome-mac.zip'
	print 'Starting download of file %s' % (download_url)
	os.system(command)
	install()
	print 'Upgraded to revision %s' % (build)


if __name__ == '__main__':
	update()