From 8a5de72506034f80754c8f8993490ee238691884 Mon Sep 17 00:00:00 2001
From: Marius Mauch <genone@gentoo.org>
Date: Thu, 11 Oct 2007 05:19:32 +0000
Subject: [PATCH] implement new set to group all consumers of preserved
 libraries

svn path=/main/trunk/; revision=8044
---
 pym/portage/sets/__init__.py |  9 ++++++---
 pym/portage/sets/dbapi.py    | 35 ++++++++++++++++++++++++++++++++++-
 2 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/pym/portage/sets/__init__.py b/pym/portage/sets/__init__.py
index c13c37252..124e68924 100644
--- a/pym/portage/sets/__init__.py
+++ b/pym/portage/sets/__init__.py
@@ -263,9 +263,12 @@ def make_default_config(settings, trees):
 	sc.set("config", "class", "portage.sets.files.ConfigFileSet")
 	sc.set("config", "multiset", "true")
 	
-	sc.add_section("user_sets")
-	sc.set("user_sets", "class", "portage.sets.files.StaticFileSet")
-	sc.set("user_sets", "multiset", "true")
+	sc.add_section("user-sets")
+	sc.set("user-sets", "class", "portage.sets.files.StaticFileSet")
+	sc.set("user-sets", "multiset", "true")
+
+	sc.add_section("rebuild-needed")
+	sc.set("rebuild-needed", "class", "portage.sets.dbapi.PreservedLibraryConsumerSet")
 	
 	return sc
 
diff --git a/pym/portage/sets/dbapi.py b/pym/portage/sets/dbapi.py
index 164027943..ed333ce00 100644
--- a/pym/portage/sets/dbapi.py
+++ b/pym/portage/sets/dbapi.py
@@ -2,8 +2,11 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 
-from portage.versions import catsplit
+from portage.versions import catsplit, catpkgsplit
 from portage.sets import PackageSet, SetConfigError
+from portage.dbapi.vartree import dblink
+
+import os
 
 __all__ = ["CategorySet", "EverythingSet"]
 
@@ -105,3 +108,33 @@ class CategorySet(PackageSet):
 			rValue[myname] = myset
 		return rValue
 	multiBuilder = classmethod(multiBuilder)
+
+class PreservedLibraryConsumerSet(PackageSet):
+	_operations = ["merge", "unmerge"]
+	
+	def __init__(self, vardbapi):
+		super(PreservedLibraryConsumerSet, self).__init__()
+		self.dbapi = vardbapi
+	
+	def load(self):
+		reg = self.dbapi.plib_registry
+		libmap = self.dbapi.libmap.get()
+		atoms = set()
+		consumers = set()
+		if reg:
+			for libs in reg.getPreservedLibs().values():
+				for lib in libs:
+					paths = libmap.get(os.path.basename(lib), [])
+					consumers.update(paths)
+		for cpv in self.dbapi.cpv_all():
+			mysplit = catsplit(cpv)
+			link = dblink(mysplit[0], mysplit[1], myroot=self.dbapi.root, \
+					mysettings=self.dbapi.settings, treetype='vartree', \
+					vartree=self.dbapi.vartree)
+			if consumers.intersection(link.getcontents().keys()):
+				atoms.add("/".join(catpkgsplit(cpv)[:2]))
+		self._setAtoms(atoms)
+
+	def singleBuilder(cls, options, settings, trees):
+		return PreservedLibraryConsumerSet(trees["vartree"].dbapi)
+	singleBuilder = classmethod(singleBuilder)
-- 
2.26.2