From 59daf6587b10d068c3427b657ebb21857bb9dac6 Mon Sep 17 00:00:00 2001
From: Marius Mauch <genone@gentoo.org>
Date: Thu, 11 Oct 2007 05:59:11 +0000
Subject: Add a set to group all consumers of missing libraries as a simple
 revdep-rebuild replacement

svn path=/main/trunk/; revision=8046
---
 pym/portage/sets/__init__.py |  2 +-
 pym/portage/sets/dbapi.py    | 56 ++++++++++++++++++++++++++++++++++----------
 2 files changed, 45 insertions(+), 13 deletions(-)

diff --git a/pym/portage/sets/__init__.py b/pym/portage/sets/__init__.py
index 124e68924..dc281dea3 100644
--- a/pym/portage/sets/__init__.py
+++ b/pym/portage/sets/__init__.py
@@ -268,7 +268,7 @@ def make_default_config(settings, trees):
 	sc.set("user-sets", "multiset", "true")
 
 	sc.add_section("rebuild-needed")
-	sc.set("rebuild-needed", "class", "portage.sets.dbapi.PreservedLibraryConsumerSet")
+	sc.set("rebuild-needed", "class", "portage.sets.dbapi.MissingLibraryConsumerSet")
 	
 	return sc
 
diff --git a/pym/portage/sets/dbapi.py b/pym/portage/sets/dbapi.py
index ed333ce00..fbff27054 100644
--- a/pym/portage/sets/dbapi.py
+++ b/pym/portage/sets/dbapi.py
@@ -5,6 +5,7 @@
 from portage.versions import catsplit, catpkgsplit
 from portage.sets import PackageSet, SetConfigError
 from portage.dbapi.vartree import dblink
+from portage.util import grabfile
 
 import os
 
@@ -109,32 +110,63 @@ class CategorySet(PackageSet):
 		return rValue
 	multiBuilder = classmethod(multiBuilder)
 
-class PreservedLibraryConsumerSet(PackageSet):
+class LibraryConsumerSet(PackageSet):
 	_operations = ["merge", "unmerge"]
-	
+
 	def __init__(self, vardbapi):
-		super(PreservedLibraryConsumerSet, self).__init__()
+		super(LibraryConsumerSet, self).__init__()
 		self.dbapi = vardbapi
+
+	def mapPathsToAtoms(self, paths):
+		rValue = set()
+		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 paths.intersection(link.getcontents().keys()):
+				rValue.add("/".join(catpkgsplit(cpv)[:2]))
+		return rValue
 	
+
+class PreservedLibraryConsumerSet(LibraryConsumerSet):
 	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)
+		else:
+			return
+		if not consumers:
+			return
+		self._setAtoms(self.mapPathsToAtoms(consumers))
 
 	def singleBuilder(cls, options, settings, trees):
 		return PreservedLibraryConsumerSet(trees["vartree"].dbapi)
 	singleBuilder = classmethod(singleBuilder)
+
+class MissingLibraryConsumerSet(LibraryConsumerSet):
+	_operations = ["merge", "unmerge"]
+	
+	def load(self):
+		atoms = set()
+		consumers = set()
+		for lib in self.dbapi.libmap.get():
+			found=False
+			for searchdir in grabfile(os.path.join(os.sep, self.dbapi.root, "etc/ld.so.conf")):
+				if os.path.exists(os.path.join(searchdir, lib)):
+					found=True
+					break
+			if not found:
+				consumers.update(self.dbapi.libmap.get()[lib])
+		if not consumers:
+			return
+		self._setAtoms(self.mapPathsToAtoms(consumers))
+	
+	def singleBuilder(cls, options, settings, trees):
+		return MissingLibraryConsumerSet(trees["vartree"].dbapi)
+	singleBuilder = classmethod(singleBuilder)
-- 
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