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#!/usr/bin/python
import xml.etree.ElementTree
from sys import argv, exit
if len(argv) < 3:
print 'Usage: xmldiff.py <file1> <file2>'
exit(1)
# Helper functions to reduce duplication
def ensureKey(dictionary, key, init):
if key not in dictionary:
dictionary[key] = init()
def add(dictionary, key, value, index):
ensureKey(dictionary, key, lambda: [None, None])
dictionary[key][index] = value
ours = xml.etree.ElementTree.parse(argv[1]).getroot().find('events')
theirs = xml.etree.ElementTree.parse(argv[2]).getroot().find('events')
# Collect every event on either side
byHandle = {}
for e in ours:
add(byHandle, e.find('handle').text, e, 0)
for e in theirs:
add(byHandle, e.find('handle').text, e, 1)
# 0: only ours, 1: only theirs, 2: identical
results = [[], [], []]
differences = {}
for key, value in byHandle.items():
# event exists only on one side
if value[0] is None:
results[0].append(key)
continue
elif value[1] is None:
results[1].append(key)
continue
# event exists on both sides, compare each subelement
subelements = {}
for se in value[0]:
add(subelements, se.tag, xml.etree.ElementTree.tostring(se), 0)
for se in value[1]:
add(subelements, se.tag, xml.etree.ElementTree.tostring(se), 1)
match = True
for sekey, sevalue in subelements.items():
ensureKey(differences, key, list)
if sevalue[0] is None:
differences[key].append(sekey + ' only in ' + argv[1])
match = False
elif sevalue[1] is None:
differences[key].append(sekey + ' only in ' + argv[2])
match = False
elif sevalue[0] != sevalue[1]:
differences[key].append(sekey + ' differs')
match = False
if match:
results[2].append(key)
# Print results in groups
print 'Elements only in ' + argv[1] + ' (' + str(len(results[0])) + '):'
for e in results[0]:
print ' ' + e
print
print 'Elements only in ' + argv[2] + ' (' + str(len(results[1])) + '):'
for e in results[1]:
print ' ' + e
print
print 'Elements identical in both (' + str(len(results[2])) + '):'
for e in results[2]:
print ' ' + e
print
print 'Elements with differences (' + str(len([l for k, l in differences.items() if len(differences[k]) > 0])) + '):'
for e, d in differences.items():
if len(d) < 1:
continue
print ' ' + e
for s in d:
print(' ' + s)
print
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