For immutable config attributes, use shallow copy for speed and memory

conservation. (trunk r15284)

svn path=/main/branches/2.1.7/; revision=15523

diff --git a/pym/portage/__init__.py b/pym/portage/__init__.py
index 144378890f65640bd55b8273cea605fc7e851604..93b623438123255c2b2a4cf80360c5931ef5a3f9 100644 (file)
--- a/pym/portage/__init__.py
+++ b/pym/portage/__init__.py
@@ -1583,10 +1583,13 @@ class config(object):
                if clone:
                        # For immutable attributes, use shallow copy for
                        # speed and memory conservation.
+                       self.depcachedir = clone.depcachedir
                        self.incrementals = clone.incrementals
+                       self.module_priority = clone.module_priority
                        self.profile_path = clone.profile_path
                        self.profiles = clone.profiles
                        self.packages = clone.packages
+                       self.usemask_list = clone.usemask_list
 
                        self.user_profile_dir = copy.deepcopy(clone.user_profile_dir)
                        self.local_config = copy.deepcopy(clone.local_config)
@@ -1594,11 +1597,7 @@ class config(object):
                                copy.deepcopy(clone._local_repo_configs)
                        self._local_repo_conf_path = \
                                copy.deepcopy(clone._local_repo_conf_path)
-
-                       self.module_priority = copy.deepcopy(clone.module_priority)
                        self.modules         = copy.deepcopy(clone.modules)
-
-                       self.depcachedir = copy.deepcopy(clone.depcachedir)
                        self.virtuals = copy.deepcopy(clone.virtuals)
                        self.dirVirtuals = copy.deepcopy(clone.dirVirtuals)
                        self.treeVirtuals = copy.deepcopy(clone.treeVirtuals)
@@ -1608,7 +1607,6 @@ class config(object):
 
                        self.use_defs = copy.deepcopy(clone.use_defs)
                        self.usemask  = copy.deepcopy(clone.usemask)
-                       self.usemask_list = copy.deepcopy(clone.usemask_list)
                        self.pusemask_list = copy.deepcopy(clone.pusemask_list)
                        self.useforce      = copy.deepcopy(clone.useforce)
                        self.useforce_list = copy.deepcopy(clone.useforce_list)
@@ -1685,7 +1683,7 @@ class config(object):
                        if not isinstance(self.incrementals, tuple):
                                self.incrementals = tuple(self.incrementals)
 
-                       self.module_priority    = ["user","default"]
+                       self.module_priority    = ("user", "default")
                        self.modules            = {}
                        modules_loader = portage.env.loaders.KeyValuePairFileLoader(
                                os.path.join(config_root, MODULES_FILE_PATH), None, None)
@@ -1788,8 +1786,9 @@ class config(object):
                                self._pkeywords_list.append(cpdict)
 
                        # get profile-masked use flags -- INCREMENTAL Child over parent
-                       self.usemask_list = [grabfile(os.path.join(x, "use.mask"),
-                               recursive=1) for x in self.profiles]
+                       self.usemask_list = tuple(
+                               tuple(grabfile(os.path.join(x, "use.mask"), recursive=1))
+                               for x in self.profiles)
                        self.usemask  = set(stack_lists(
                                self.usemask_list, incremental=True))
                        use_defs_lists = [grabdict(os.path.join(x, "use.defaults")) for x in self.profiles]