release_check

#!/usr/bin/python
#
# This script performs checks that should be done before a new stable
# release. Currently, there is only one check:
#
# * Verify that the DTD in the source tree is up to date.
#

import contextlib
import difflib
import os.path
import urllib2

ALPINODS_URL = r'https://bitbucket.org/alpino/alpino/raw/master/Treebank/alpino_ds.dtd'

def fetchURL(url):
	with contextlib.closing(urllib2.urlopen(url)) as f:
		return f.read()


def verifyDTD():
	print "Checking freshness of the local alpino_ds DTD... ",

	try:
		currentDTD = fetchURL(ALPINODS_URL)
	except urllib2.HTTPError:
		print "Couldn't retrieve DTD!"
		return

	rootDir = os.path.dirname(os.path.realpath(__file__))

	localDTD = str()
	with open("%s/resources/dtd/alpino_ds.dtd" % rootDir, "r") as f:
		localDTD = f.read()

	if localDTD == currentDTD:
		print "OK"
		return

	print "Local DTD is not up to date:\n"

	# Print a fancy diff of the DTDs...
	diff = difflib.context_diff(localDTD.split('\n'), currentDTD.split('\n'))
	print '\n'.join(diff)


if __name__ == "__main__":
	verifyDTD()