From: Zac Medico <zmedico@gentoo.org>
Date: Tue, 21 Jul 2009 20:33:11 +0000 (-0000)
Subject: Add comment in calc_depclean() about topological sort optimization that
X-Git-Tag: v2.2_rc34~26
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=fe6e94590a81975460289b67113bb85c931bd4cf;p=portage.git

Add comment in calc_depclean() about topological sort optimization that
minimizes issues with implicit deps.

svn path=/main/trunk/; revision=13846
---

diff --git a/pym/_emerge/actions.py b/pym/_emerge/actions.py
index 2d664ca80..f28f0dcaa 100644
--- a/pym/_emerge/actions.py
+++ b/pym/_emerge/actions.py
@@ -1142,7 +1142,8 @@ def calc_depclean(settings, trees, ldpath_mtimes,
 			cleanlist = [pkg.cpv for pkg in graph.order]
 		else:
 			# Order nodes from lowest to highest overall reference count for
-			# optimal root node selection.
+			# optimal root node selection (this can help minimize issues
+			# with unaccounted implicit dependencies).
 			node_refcounts = {}
 			for node in graph.order:
 				node_refcounts[node] = len(graph.parent_nodes(node))