From add4b117ccf2ebca5ada7b1dea46cc91603585d5 Mon Sep 17 00:00:00 2001
From: Toshi MARUYAMA <marutosijp2@yahoo.co.jp>
Date: Fri, 18 Feb 2011 12:44:43 +0000
Subject: [PATCH] scm: mercurial: fix exception operation in adapter "summary"
 method (#4455).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4876 e93f8b46-1217-0410-a6f0-8f06a7374b81
---
 lib/redmine/scm/adapters/mercurial_adapter.rb | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/redmine/scm/adapters/mercurial_adapter.rb b/lib/redmine/scm/adapters/mercurial_adapter.rb
index 6903f80c..80ad02f5 100644
--- a/lib/redmine/scm/adapters/mercurial_adapter.rb
+++ b/lib/redmine/scm/adapters/mercurial_adapter.rb
@@ -110,9 +110,16 @@ module Redmine
         end
 
         def summary
-          @summary ||= hg 'rhsummary' do |io|
-            ActiveSupport::XmlMini.parse(io.read)['rhsummary']
+          return @summary if @summary 
+          doc = nil
+          hg 'rhsummary' do |io|
+            output = io.read
+            begin
+              doc = ActiveSupport::XmlMini.parse(output)['rhsummary']
+            rescue
+            end
           end
+          @summary = doc
         end
         private :summary