def _detect_database(self, tag):
match = re.match('^{([^}]+)}', tag)
if not match:
return None
namespace = match.group(1)
for db in Database.list():
if namespace == db.__xmlns__:
return db
return None
def execute(self, args, options):
filters = {}
if options.filter:
if not os.path.exists(options.filter):
self.parser().error('filter: unable to open for reading')
filters = create_filter(options.filter, options.include_tags, options.exclude_tags)
source_location, target_location = args
source = target = None
# load the source state
for provider in PROVIDERS:
if provider.can_load(source_location):
source = provider.load(source_location, filters)
break
else:
self.parser().error('source: unable to open for reading')
# load the target state
for provider in PROVIDERS:
if provider.can_load(target_location):
target = provider.load(target_location, filters)
break
else:
self.parser().error('target: unable to open for reading')
if not source.__class__ == target.__class__:
self.parser().error('source and target represent different databases')
source.setdefault('name')
target.setdefault('name')
self.source_version, self.target_version = source.name, target.name
source.name = target.name = None
if source == target:
return
for db in Database.list():
if db.__state__ == source.__class__:
self.db = db
self.builders = {}
self.tags = {}
for builder in self.db.__builders__:
self.builders[builder.DbClass] = builder
self.tags[builder.DbClass] = builder.XmlTag
self.diff = []
self.compute_diff([], source, target)
if not options.html:
self.print_simple_diff()
else:
self.print_html_diff(source, target, options.lines)
def _lookup_database(self, dbclass):
for db in Database.list():
if dbclass == db.__state__:
return db
return None