From: Zac Medico <zmedico@gentoo.org>
Date: Wed, 2 Apr 2008 18:03:08 +0000 (-0000)
Subject: Handle a potential FileNotFound exception in new_protect_filename() when
X-Git-Tag: v2.2_pre6~272
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=1fec9aa092ace6272d3b7bae934ecdf25df7f6e9;p=portage.git

Handle a potential FileNotFound exception in new_protect_filename() when
the last ._cfg* file happens to be a broken symlink. Thanks to bonsaikitten
for reporting.

svn path=/main/trunk/; revision=9677
---

diff --git a/pym/portage/util.py b/pym/portage/util.py
index 155a787f5..fae0d63fc 100644
--- a/pym/portage/util.py
+++ b/pym/portage/util.py
@@ -1072,9 +1072,15 @@ def new_protect_filename(mydest, newmd5=None):
 	old_pfile = normalize_path(os.path.join(real_dirname, last_pfile))
 	if last_pfile and newmd5:
 		import portage.checksum
-		if portage.checksum.perform_md5(
-			os.path.join(real_dirname, last_pfile)) == newmd5:
-			return old_pfile
+		try:
+			last_pfile_md5 = portage.checksum.perform_md5(
+				os.path.join(real_dirname, last_pfile))
+		except FileNotFound:
+			# The file suddenly disappeared or it's a broken symlink.
+			pass
+		else:
+			if last_pfile_md5 == newmd5:
+				return old_pfile
 	return new_pfile
 
 def getlibpaths():