From e3edde79ba4ccf903434812328a00308452bcd72 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sat, 22 Nov 2008 21:58:37 +0000
Subject: Add new @unavailable package set which contains all installed
 packages for which there are no visible ebuilds corresponding to the same
 $CATEGORY/$PN:$SLOT.

svn path=/main/trunk/; revision=12043
---
 cnf/sets.conf             |  8 ++++----
 doc/config/sets.docbook   | 15 +++++++++++++++
 pym/portage/sets/dbapi.py | 27 +++++++++++++++++++++++++++
 3 files changed, 46 insertions(+), 4 deletions(-)

diff --git a/cnf/sets.conf b/cnf/sets.conf
index 84f6a6e62..36e2f7f45 100644
--- a/cnf/sets.conf
+++ b/cnf/sets.conf
@@ -59,8 +59,8 @@ class = portage.sets.dbapi.OwnerSet
 world-candidate = False
 files = /lib/modules
 
-# Installed packages for which the highest visible ebuild
-# version is lower than the currently installed version.
-[downgrade]
-class = portage.sets.dbapi.DowngradeSet
+# Installed packages for which there are no visible ebuilds
+# corresponding to the same $CATEGORY/$PN:$SLOT.
+[unavailable]
+class = portage.sets.dbapi.UnavailableSet
 world-candidate = False
diff --git a/doc/config/sets.docbook b/doc/config/sets.docbook
index d993024bd..dc26b1a0c 100644
--- a/doc/config/sets.docbook
+++ b/doc/config/sets.docbook
@@ -522,6 +522,20 @@
 		</itemizedlist>
 		</para>
 		</sect2>
+		<sect2 id='config-set-classes-UnavailableSet'>
+		<title>portage.sets.dbapi.UnavailableSet</title>
+		<para>
+		Package set which contains all installed
+		packages for which there are no visible ebuilds
+		corresponding to the same $CATEGORY/$PN:$SLOT.
+		This class supports the following options:
+		<itemizedlist>
+		<listitem><varname>metadata-source</varname>: Optional, defaults to
+		"porttree". Specifies the repository to use for getting the metadata
+		to check.</listitem>
+		</itemizedlist>
+		</para>
+		</sect2>
 		<sect2 id='config-set-classes-DowngradeSet'>
 		<title>portage.sets.dbapi.DowngradeSet</title>
 		<para>
@@ -571,6 +585,7 @@
 	<listitem><varname>live-rebuild</varname>: uses <classname>VariableSet</classname></listitem>
 	<listitem><varname>module-rebuild</varname>: uses <classname>OwnerSet</classname></listitem>
 	<listitem><varname>downgrade</varname>: uses <classname>DowngradeSet</classname></listitem>
+	<listitem><varname>unavailable</varname>: uses <classname>UnavailableSet</classname></listitem>
 	</itemizedlist>
 	Additionally the default configuration includes a multi set section based on
 	the <classname>StaticFileSet</classname> defaults that creates a set for each 
diff --git a/pym/portage/sets/dbapi.py b/pym/portage/sets/dbapi.py
index 877c45cee..65d05a2ae 100644
--- a/pym/portage/sets/dbapi.py
+++ b/pym/portage/sets/dbapi.py
@@ -179,6 +179,33 @@ class DowngradeSet(PackageSet):
 
 	singleBuilder = classmethod(singleBuilder)
 
+class UnavailableSet(EverythingSet):
+
+	_operations = ["unmerge"]
+
+	description = "Package set which contains all installed " + \
+		"packages for which there are no visible ebuilds " + \
+		"corresponding to the same $CATEGORY/$PN:$SLOT."
+
+	def __init__(self, vardb, metadatadb=None):
+		super(UnavailableSet, self).__init__(vardb)
+		self._metadatadb = metadatadb
+
+	def _filter(self, atom):
+		return not self._metadatadb.match(atom)
+
+	def singleBuilder(cls, options, settings, trees):
+
+		metadatadb = options.get("metadata-source", "porttree")
+		if not metadatadb in trees:
+			raise SetConfigError(("invalid value '%s' for option " + \
+				"metadata-source") % (metadatadb,))
+
+		return cls(trees["vartree"].dbapi,
+			metadatadb=trees[metadatadb].dbapi)
+
+	singleBuilder = classmethod(singleBuilder)
+
 class CategorySet(PackageSet):
 	_operations = ["merge", "unmerge"]
 	
-- 
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