When the user has given --depclean a list of atoms to clean, pull all

installed packages into the graph (not just those traversable from system
or world) to ensure that packages can not be uninstalled unless nothing
requires them. (trunk r9698:9700)

svn path=/main/branches/2.1.2/; revision=9701

1 files changed, 9 insertions, 3 deletions

diff --git a/bin/emerge b/bin/emerge
index 6d698e744..d8247d0a3 100755
--- a/bin/emerge
+++ b/bin/emerge
@@ -6096,12 +6096,18 @@ def action_depclean(settings, trees, ldpath_mtimes,
 
 	remaining_atoms = []
 	if action == "depclean":
-		for atom in worldlist:
-			if vardb.match(atom):
-				remaining_atoms.append((atom, 'world', runtime))
 		for atom in syslist:
 			if vardb.match(atom):
 				remaining_atoms.append((atom, 'system', runtime))
+		if myfiles:
+			# Pull in everything that's installed since we don't want
+			# to clean any package if something depends on it.
+			remaining_atoms.extend(
+				("="+cpv, 'world', runtime) for cpv in vardb.cpv_all())
+		else:
+			for atom in worldlist:
+				if vardb.match(atom):
+					remaining_atoms.append((atom, 'world', runtime))
 	elif action == "prune":
 		for atom in syslist:
 			if vardb.match(atom):