Fix repository browsing at given revision for various scm and add tests for this.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1329 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/repository/cvs.rb

@@ -35,7 +35,8 @@ class Repository::Cvs < Repository
   end
   
   def entries(path=nil, identifier=nil)
-    entries=scm.entries(path, identifier)
+    rev = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    entries = scm.entries(path, rev.nil? ? nil : rev.committed_on)
     if entries
       entries.each() do |entry|
         unless entry.lastrev.nil? || entry.lastrev.identifier

app/models/repository/darcs.rb

@@ -29,7 +29,8 @@ class Repository::Darcs < Repository
   end
   
   def entries(path=nil, identifier=nil)
-    entries=scm.entries(path, identifier)
+    patch = identifier.nil? ? nil : changesets.find_by_revision(identifier)
+    entries = scm.entries(path, patch.nil? ? nil : patch.scmid)
     if entries
       entries.each do |entry|
         # Search the DB for the entry's last change