From 0ad1d4b5b0618994e29e9b9e43d296a3a802eee7 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sat, 12 Sep 2009 13:13:05 +0000
Subject: Make grabdict_package() and grabfile_package() return Atom instances
 when possible, in order to avoid revalidation.

svn path=/main/trunk/; revision=14224
---
 pym/portage/util.py | 37 +++++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/pym/portage/util.py b/pym/portage/util.py
index 9f7c92828..f6f21f586 100644
--- a/pym/portage/util.py
+++ b/pym/portage/util.py
@@ -28,9 +28,9 @@ from portage import _encodings
 from portage import _os_merge
 from portage import _unicode_encode
 from portage import _unicode_decode
-from portage.exception import PortageException, FileNotFound, \
+from portage.exception import InvalidAtom, PortageException, FileNotFound, \
        OperationNotPermitted, PermissionDenied, ReadOnlyFileSystem
-from portage.dep import isvalidatom
+from portage.dep import Atom, isvalidatom
 from portage.localization import _
 from portage.proxy.objectproxy import ObjectProxy
 from portage.cache.mappings import UserDict
@@ -293,27 +293,40 @@ def grabdict_package(myfilename, juststrings=0, recursive=0):
 	# We need to call keys() here in order to avoid the possibility of
 	# "RuntimeError: dictionary changed size during iteration"
 	# when an invalid atom is deleted.
-	for x in pkgs.keys():
-		if not isvalidatom(x):
-			del(pkgs[x])
-			writemsg(_("--- Invalid atom in %s: %s\n") % (myfilename, x),
+	atoms = {}
+	for k, v in pkgs.iteritems():
+		try:
+			k = Atom(k)
+		except InvalidAtom:
+			writemsg(_("--- Invalid atom in %s: %s\n") % (myfilename, k),
 				noiselevel=-1)
-	return pkgs
+		else:
+			atoms[k] = v
+	return atoms
 
 def grabfile_package(myfilename, compatlevel=0, recursive=0):
 	pkgs=grabfile(myfilename, compatlevel, recursive=recursive)
-	for x in range(len(pkgs)-1, -1, -1):
-		pkg = pkgs[x]
+	atoms = []
+	for pkg in pkgs:
+		pkg_orig = pkg
 		# for packages and package.mask files
 		if pkg[:1] == "-":
 			pkg = pkg[1:]
 		if pkg[:1] == "*":
 			pkg = pkg[1:]
-		if not isvalidatom(pkg):
+		try:
+			pkg = Atom(pkg)
+		except InvalidAtom:
 			writemsg(_("--- Invalid atom in %s: %s\n") % (myfilename, pkgs[x]),
 				noiselevel=-1)
-			del(pkgs[x])
-	return pkgs
+		else:
+			if pkg_orig == str(pkg):
+				# normal atom, so return as Atom instance
+				atoms.append(pkg)
+			else:
+				# atom has special prefix, so return as string
+				atoms.append(pkg_orig)
+	return atoms
 
 def grablines(myfilename,recursive=0):
 	mylines=[]
-- 
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