scm: mercurial: path encoding support for "cat" in adapter (#2664).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@4928 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redmine/scm/adapters/mercurial_adapter.rb

@@ -228,7 +228,8 @@ module Redmine
         end
 
         def cat(path, identifier=nil)
-          hg 'cat', '-r', hgrev(identifier), hgtarget(path) do |io|
+          p = CGI.escape(scm_iconv(@path_encoding, 'UTF-8', path))
+          hg 'rhcat', '-r', hgrev(identifier), hgtarget(p) do |io|
             io.binmode
             io.read
           end