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import lxml.etree, os
import Bcfg2.Server.Admin
class Compare(Bcfg2.Server.Admin.Mode):
__shorthelp__ = "bcfg2-admin compare <file1> <file2>\nbcfg2-admin compare -r <dir1> <dir2>"
__longhelp__ = __shorthelp__ + '''\n\tCompare mode determines differences between directories of client specification instances'''
def __init__(self):
Bcfg2.Server.Admin.Mode.__init__(self)
self.important = {'Package':['name', 'version'],
'Service':['name', 'status'],
'Directory':['name', 'owner', 'group', 'perms'],
'SymLink':['name', 'to'],
'ConfigFile':['name', 'owner', 'group', 'perms'],
'Permissions':['name', 'perms'],
'PostInstall':['name']}
def compareStructures(self, new, old):
for child in new.getchildren():
equiv = old.xpath('%s[@name="%s"]' % (child.tag, child.get('name')))
if child.tag in self.important:
print "tag type %s not handled" % (child.tag)
continue
if len(equiv) == 0:
print "didn't find matching %s %s" % (child.tag, child.get('name'))
continue
elif len(equiv) >= 1:
if child.tag == 'ConfigFile':
if child.text != equiv[0].text:
print " %s %s contents differ" \
% (child.tag, child.get('name'))
continue
noattrmatch = [field for field in self.important[child.tag] if \
child.get(field) != equiv[0].get(field)]
if not noattrmatch:
new.remove(child)
old.remove(equiv[0])
else:
print " %s %s attributes %s do not match" % \
(child.tag, child.get('name'), noattrmatch)
if len(old.getchildren()) == 0 and len(new.getchildren()) == 0:
return True
if new.tag == 'Independent':
name = 'Base'
else:
name = new.get('name')
both = []
oldl = ["%s %s" % (entry.tag, entry.get('name')) for entry in old]
newl = ["%s %s" % (entry.tag, entry.get('name')) for entry in new]
for entry in newl:
if entry in oldl:
both.append(entry)
newl.remove(entry)
oldl.remove(entry)
for entry in both:
print " %s differs (in bundle %s)" % (entry, name)
for entry in oldl:
print " %s only in old configuration (in bundle %s)" % (entry, name)
for entry in newl:
print " %s only in new configuration (in bundle %s)" % (entry, name)
return False
def compareSpecifications(self, path1, path2):
try:
new = lxml.etree.parse(path1).getroot()
except IOError:
print "Failed to read %s" % (path1)
raise SystemExit(1)
try:
old = lxml.etree.parse(path2).getroot()
except IOError:
print "Failed to read %s" % (path2)
raise SystemExit(1)
for src in [new, old]:
for bundle in src.findall('./Bundle'):
if bundle.get('name')[-4:] == '.xml':
bundle.set('name', bundle.get('name')[:-4])
rcs = []
for bundle in new.findall('./Bundle'):
equiv = old.xpath('Bundle[@name="%s"]' % (bundle.get('name')))
if len(equiv) == 0:
print "couldnt find matching bundle for %s" % bundle.get('name')
continue
if len(equiv) == 1:
if self.compareStructures(bundle, equiv[0]):
new.remove(bundle)
old.remove(equiv[0])
rcs.append(True)
else:
rcs.append(False)
else:
print "Unmatched bundle %s" % (bundle.get('name'))
rcs.append(False)
i1 = new.find('./Independent')
i2 = old.find('./Independent')
if self.compareStructures(i1, i2):
new.remove(i1)
old.remove(i2)
else:
rcs.append(False)
return False not in rcs
def __call__(self, args):
Bcfg2.Server.Admin.Mode.__call__(self, args)
if '-r' in args:
args = list(args)
args.remove('-r')
(oldd, newd) = args
(old, new) = [os.listdir(spot) for spot in args]
for item in old:
print "Entry:", item
state = self.__call__([oldd + '/' + item, newd + '/' + item])
new.remove(item)
if state:
print "Entry:", item, "good"
else:
print "Entry:", item, "bad"
if new:
print "new has extra entries", new
return
try:
(old, new) = args
except IndexError:
print self.__call__.__doc__
raise SystemExit
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