From: Zac Medico <zmedico@gentoo.org>
Date: Sun, 2 Mar 2008 21:42:32 +0000 (-0000)
Subject: Make profile stacking of default USE and package.* slightly more efficient
X-Git-Tag: v2.2_pre4~31
X-Git-Url: http://git.tremily.us/gitweb.cgi?a=commitdiff_plain;h=f3a07ea9bd683ed27896480aeee169b619ad9f68;p=portage.git

Make profile stacking of default USE and package.* slightly more efficient
by skipping list.insert() calls when possible.

svn path=/main/trunk/; revision=9415
---

diff --git a/pym/portage/__init__.py b/pym/portage/__init__.py
index 2d30d0102..d5daf9648 100644
--- a/pym/portage/__init__.py
+++ b/pym/portage/__init__.py
@@ -1878,7 +1878,8 @@ class config(object):
 					else:
 						break
 				del keys
-			defaults.insert(pos, self.make_defaults_use[i])
+			if self.make_defaults_use[i]:
+				defaults.insert(pos, self.make_defaults_use[i])
 			pos = len(defaults)
 		defaults = " ".join(defaults)
 		if defaults != self.configdict["defaults"].get("USE",""):
@@ -1898,7 +1899,8 @@ class config(object):
 					else:
 						break
 				del keys
-			useforce.insert(pos, self.useforce_list[i])
+			if self.useforce_list[i]:
+				useforce.insert(pos, self.useforce_list[i])
 			pos = len(useforce)
 		useforce = set(stack_lists(useforce, incremental=True))
 		if useforce != self.useforce:
@@ -1918,7 +1920,8 @@ class config(object):
 					else:
 						break
 				del keys
-			usemask.insert(pos, self.usemask_list[i])
+			if self.usemask_list[i]:
+				usemask.insert(pos, self.usemask_list[i])
 			pos = len(usemask)
 		usemask = set(stack_lists(usemask, incremental=True))
 		if usemask != self.usemask: