def _show_prompt(self, cfn, stack, data, allowed):
"""
Helper method to create colourised diff outut and prompt for update
"""
resp = cfn.get_template(stack)['GetTemplateResponse']
old_body = resp['GetTemplateResult']['TemplateBody']
diff = make_diff(old_body, data)
if len(diff):
print "Diff from previous:"
print diff
chkeys = get_changed_keys_from_templates(old_body, data)
chkeys = [k for k in chkeys if not allowed.match(k)]
print "Changed data:"
for k in sorted(chkeys):
print k
answer = self._get_input("Continue? [Yn]: ")
if answer.lower().startswith('n'):
return False
else:
LOG.warning('No difference, not updating')
return False
return True
def test_make_diff_same_data(self):
a = b = '[1, 2, 3]'
assert_equals(utils.make_diff(a, b), '')
def test_make_diff_different_data(self):
a = '{"a": [1, 2, 3]}'
b = '{"a": [1, 2, 4]}'
output = utils.make_diff(a, b)
assert_equals(True, len(output) > 0)