def masked_use(self, data):
c = ChunkedDataDict()
neg, pos = split_negations(data)
if neg or pos:
c.add_bare_global(neg, pos)
c.update_from_stream(
chain_from_iterable(self.pkg_use_mask.itervalues()))
c.freeze()
return c
def render_prepends(self, manager, key, type_name, flatten=True):
results = []
# keep in mind that the sequence we get is a top -> bottom walk of the config
# as such for this operation we have to reverse it when building the content-
# specifically, reverse the ordering, but not the content of each item.
data = []
for content in self.render_vals(manager, key, type_name):
data.append(content)
if content[1]:
break
for prepend, this_content, append in reversed(data):
if this_content:
results = [this_content]
if prepend:
results = [prepend] + results
if append:
results += [append]
if flatten:
results = iterables.chain_from_iterable(results)
return list(results)
def enabled_operations(self):
s = set(chain_from_iterable(tree.operations.enabled_operations
for tree in self.repo.trees))
return frozenset(self._apply_overrides(s))
def raw_operations(self):
return frozenset(chain_from_iterable(tree.operations.raw_operations
for tree in self.repo.trees))
def pkg_use(self, data):
c = ChunkedDataDict()
c.update_from_stream(
chain_from_iterable(self._parse_package_use(data).itervalues()))
c.freeze()
return c
