Add a new portageq metadata function that wraps dbapi.aux_get() so that things like built_with_use in eutils.eclass can retrieve metadata in manner that is independent of the installed package database implementation.

svn path=/main/trunk/; revision=3893

1 files changed, 30 insertions, 0 deletions

diff --git a/bin/portageq b/bin/portageq
index b8e12c5fa..ef05a28d7 100755
--- a/bin/portageq
+++ b/bin/portageq
@@ -80,6 +80,36 @@ def mass_best_version(argv):
 		sys.exit(1)
 mass_best_version.uses_root = True
 
+def metadata(argv):
+	"""<root> <pkgtype> <category/package> [<key>]+
+	Returns metadata values for the specified package.
+	"""
+	if (len(argv) < 4):
+		print >> sys.stderr, "ERROR: insufficient parameters!"
+		sys.exit(2)
+
+	root, pkgtype, pkgspec = argv[0:3]
+	metakeys = argv[3:]
+	type_map = {
+		"ebuild":"porttree",
+		"binary":"bintree",
+		"installed":"vartree"}
+	if pkgtype not in type_map:
+		print >> sys.stderr, "Unrecognized package type: '%s'" % pkgtype
+		sys.exit(1)
+	trees = portage.db
+	if os.path.realpath(root) == os.path.realpath(portage.settings["ROOT"]):
+		root = portage.settings["ROOT"] # contains the normalized $ROOT
+	try:
+			values = trees[root][type_map[pkgtype]].dbapi.aux_get(
+				pkgspec, metakeys)
+			for value in values:
+				print value
+	except KeyError:
+		print >> sys.stderr, "Package not found: '%s'" % pkgspec
+		sys.exit(1)
+
+metadata.uses_root = True
 
 def best_visible(argv):
 	"""<root> [<category/package>]+