def get_feed(self, url, force=False, selections_ok=False):
"""Get a feed from the cache.
@param url: the URL of the feed
@type url: str
@param force: load the file from disk again
@type force: bool
@param selections_ok: if url is a local selections file, return that instead
@type selections_ok: bool
@return: the feed, or None if it isn't cached
@rtype: L{model.ZeroInstallFeed}"""
if not force:
feed = self._feeds.get(url, False)
if feed != False:
return feed
if url.startswith('distribution:'):
master_feed = self.get_feed(url.split(':', 1)[1])
if not master_feed:
return None # e.g. when checking a selections document
feed = self.distro.get_feed(master_feed)
else:
feed = reader.load_feed_from_cache(url,
selections_ok=selections_ok)
if selections_ok and feed and not isinstance(
feed, model.ZeroInstallFeed):
assert feed.selections is not None
return feed # (it's actually a selections document)
if feed:
reader.update_user_feed_overrides(feed)
self._feeds[url] = feed
return feed
def get_feed(self, url, force = False, selections_ok = False):
"""Get a feed from the cache.
@param url: the URL of the feed
@type url: str
@param force: load the file from disk again
@type force: bool
@param selections_ok: if url is a local selections file, return that instead
@type selections_ok: bool
@return: the feed, or None if it isn't cached
@rtype: L{model.ZeroInstallFeed}"""
if not force:
feed = self._feeds.get(url, False)
if feed != False:
return feed
if url.startswith('distribution:'):
master_feed = self.get_feed(url.split(':', 1)[1])
if not master_feed:
return None # Can't happen?
feed = self.distro.get_feed(master_feed)
else:
feed = reader.load_feed_from_cache(url, selections_ok = selections_ok)
if selections_ok and feed and not isinstance(feed, model.ZeroInstallFeed):
assert feed.selections is not None
return feed # (it's actually a selections document)
if feed:
reader.update_user_feed_overrides(feed)
self._feeds[url] = feed
return feed
def get_feed(self, url, force = False):
"""Get a feed from the cache.
@param url: the URL of the feed
@type url: str
@param force: load the file from disk again
@type force: bool
@return: the feed, or None if it isn't cached
@rtype: L{model.ZeroInstallFeed}"""
if not force:
feed = self._feeds.get(url, False)
if feed != False:
return feed
assert not url.startswith('distribution:'), url
feed = reader.load_feed_from_cache(url)
self._feeds[url] = feed
return feed
