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"""
Diff a series of rcynic.xml files, sort of.
$Id$
Copyright (C) 2012 Internet Systems Consortium, Inc. ("ISC")
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
"""
import sys
try:
from lxml.etree import ElementTree
except ImportError:
from xml.etree.ElementTree import ElementTree
show_backup_generation = False
class Object(object):
def __init__(self, session, uri, generation):
self.session = session
self.uri = uri
self.generation = generation
self.labels = []
def add(self, label):
self.labels.append(label)
def __cmp__(self, other):
return cmp(self.labels, other.labels)
def show(self, other = None):
if other is None:
labels = " ".join(self.labels)
else:
labels = []
for label in self.session.labels:
if label in self.labels and label in other.labels:
labels.append(label)
elif label in self.labels:
labels.append("+" + label)
elif label in other.labels:
labels.append("-" + label)
labels = " ".join(labels)
if show_backup_generation:
print " ", self.uri, self.generation, labels
else:
print " ", self.uri, labels
class Session(dict):
def __init__(self, name):
self.name = name
tree = ElementTree(file = name)
self.labels = [elt.tag.strip() for elt in tree.find("labels")]
for elt in tree.findall("validation_status"):
generation = elt.get("generation")
status = elt.get("status")
uri = elt.text.strip()
if show_backup_generation:
key = (uri, generation)
elif generation == "backup":
continue
else:
key = uri
if key not in self:
self[key] = Object(self, uri, generation)
self[key].add(status)
old_db = new_db = None
for arg in sys.argv[1:]:
old_db = new_db
new_db = Session(arg)
if old_db is None:
continue
only_old = set(old_db) - set(new_db)
only_new = set(new_db) - set(old_db)
changed = set(key for key in (set(old_db) & set(new_db)) if old_db[key] != new_db[key])
if only_old or changed or only_new:
print "Comparing", old_db.name, "with", new_db.name
print
if only_old:
print "Only in", old_db.name
for key in sorted(only_old):
old_db[key].show()
print
if changed:
print "Changed:"
for key in sorted(changed):
new_db[key].show(old_db[key])
print
if only_new:
print "Only in", new_db.name
for key in sorted(only_new):
new_db[key].show()
print
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