From 3acce846c43eed7feefd3ab9c47dd172a83ae1db Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 4 Aug 2011 16:09:36 -0700
Subject: unmerge: remove generated info "dir" files

These files are generated by emerge, so we need to remove them
when they are the only thing left in the directory. This will fix
bug #323213.
---
 pym/portage/dbapi/vartree.py | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/pym/portage/dbapi/vartree.py b/pym/portage/dbapi/vartree.py
index db44491f2..94b7936e5 100644
--- a/pym/portage/dbapi/vartree.py
+++ b/pym/portage/dbapi/vartree.py
@@ -1985,6 +1985,22 @@ class dblink(object):
 			real_root_len = len(real_root) - 1
 			eroot_split_len = len(self.settings["EROOT"].split(os.sep)) - 1
 
+			# These files are generated by emerge, so we need to remove
+			# them when they are the only thing left in a directory.
+			infodir_cleanup = frozenset(["dir", "dir.old"])
+			infodirs = frozenset(infodir for infodir in chain(
+				self.settings.get("INFOPATH", "").split(":"),
+				self.settings.get("INFODIR", "").split(":")) if infodir)
+			infodirs_inodes = set()
+			for infodir in infodirs:
+				infodir = os.path.join(real_root, infodir.lstrip(os.sep))
+				try:
+					statobj = os.stat(infodir)
+				except OSError:
+					pass
+				else:
+					infodirs_inodes.add((statobj.st_dev, statobj.st_ino))
+
 			for i, objkey in enumerate(mykeys):
 
 				obj = normalize_path(objkey)
@@ -2204,6 +2220,30 @@ class dblink(object):
 			mydirs.reverse()
 
 			for obj, inode_key in mydirs:
+				if inode_key in infodirs_inodes:
+					try:
+						remaining = os.listdir(obj)
+					except OSError:
+						pass
+					else:
+						cleanup_info_dir = ()
+						if remaining and \
+							len(remaining) <= len(infodir_cleanup):
+							if not set(remaining).difference(infodir_cleanup):
+								cleanup_info_dir = remaining
+
+						for child in cleanup_info_dir:
+							child = os.path.join(obj, child)
+							try:
+								lstatobj = os.lstat(child)
+								if stat.S_ISREG(lstatobj.st_mode):
+									unlink(child, lstatobj)
+									show_unmerge("<<<", "", "obj", child)
+							except EnvironmentError as e:
+								if e.errno not in ignored_unlink_errnos:
+									raise
+								del e
+								show_unmerge("!!!", "", "obj", child)
 				try:
 					if bsd_chflags:
 						lstatobj = os.lstat(obj)
-- 
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