recursive diff

diffrecurse.py

#!/usr/bin/env python
import os
import sys
from os.path import join

expectedFiles = []
actualFiles = []
returnValue = 0

expectedFolder = sys.argv[1]
actualFolder = sys.argv[2]

def buildNames(d, array):
	for filename in os.listdir(d):
		if os.path.isfile(join(d, filename)):
			array.append((filename, join(d, filename)))
		else:
			buildNames(join(d, filename), array)

def compareFiles(filename1, filename2):
	try:
		f = open(filename1, 'r')
		g = open(filename2, 'r')

		for lines in zip(f.readlines(), g.readlines()):
			if lines[0] != lines[1]:
				print "Files Different"
				return False

		return True
	except IOError as (errno, strerror):
		print "Couldn't read the files! IO Error({0}): {1}" % (errno, strerror)
	finally:
		f.close()
		g.close()

buildNames(expectedFolder, expectedFiles)
buildNames(actualFolder, actualFiles)

print expectedFiles
print actualFiles

for ((expected, x), (actual, y)) in zip(expectedFiles, actualFiles):
	if expected != actual:
		print "Directories Different"
		sys.exit(-1)

returnValue = 0

for combined in zip(expectedFiles, actualFiles):
	print combined[0][1]
	if not compareFiles(combined[0][1], combined[1][1]):
		returnValue = -1

sys.exit(returnValue)