diff options
| -rw-r--r-- | pym/_emerge/__init__.py | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/pym/_emerge/__init__.py b/pym/_emerge/__init__.py index 380f07d20..c387bfe05 100644 --- a/pym/_emerge/__init__.py +++ b/pym/_emerge/__init__.py @@ -1774,6 +1774,15 @@ class PackageVirtualDbapi(portage.dbapi): self._cp_map = {} self._cpv_map = {} + def clear(self): + """ + Remove all packages. + """ + if self._cpv_map: + self._clear_cache() + self._cp_map.clear() + self._cpv_map.clear() + def copy(self): obj = PackageVirtualDbapi(self.settings) obj._match_cache = self._match_cache.copy() @@ -3840,6 +3849,29 @@ class depgraph(object): retlist.reverse() return retlist + def break_refs(self, mergelist): + """ + Take a mergelist like that returned from self.altlist() and + break any references that lead back to the depgraph. This is + useful if you want to hold references to packages without + also holding the depgraph on the heap. + """ + for node in mergelist: + if not isinstance(node, Package): + continue + + # The visible packages cache has fullfilled it's purpose + # and it's no longer needed, so free the memory. + node.root_config.visible_pkgs.clear() + + if isinstance(node.root_config.trees["vartree"], FakeVartree): + # The FakeVartree references the _package_cache which + # references the depgraph. So that Package instances don't + # hold the depgraph and FakeVartree on the heap, replace + # the FakeVartree reference with the real vartree. + node.root_config.trees["vartree"] = \ + self._trees_orig[node.root]["vartree"] + def _resolve_conflicts(self): if not self._complete_graph(): raise self._unknown_internal_error() @@ -8750,6 +8782,7 @@ def action_build(settings, trees, mtimedb, mtimedb.filename = None time.sleep(3) # allow the parent to have first fetch mymergelist = mydepgraph.altlist() + mydepgraph.break_refs(mymergelist) del mydepgraph clear_caches(trees) @@ -8793,6 +8826,7 @@ def action_build(settings, trees, mtimedb, pkglist = mydepgraph.altlist() mydepgraph.saveNomergeFavorites() + mydepgraph.break_refs(pkglist) del mydepgraph clear_caches(trees) |