Hacked it about a bit - a bit more refactoring needed for sure.

app/models/project.rb

@@ -39,6 +39,7 @@ def initialize(name, scm = Subversion.new)
     @error_message = ''
     @triggers = [ChangeInSourceControlTrigger.new(self)]
     instantiate_plugins
+    scm.project = self if scm.respond_to? :project=
   end
 
   def source_control=(value)
@@ -443,7 +444,7 @@ def order_builds(builds)
   def create_build_label(revision_number)
     revision_number = revision_number.to_s
     if revision_number.length > MAX_BUILD_LABEL_LENGTH
-	revision_number = revision_number[0, MAX_BUILD_LABEL_LENGTH] + '...'
+	      revision_number = revision_number[0, MAX_BUILD_LABEL_LENGTH] + '...'
     end
 
     build_labels = builds.map { |b| b.label }
@@ -490,7 +491,7 @@ def plugin_loader.load_plugin(plugin_path)
   plugin_is_directory = (plugin_file == 'init')  
   plugin_name = plugin_is_directory ? File.basename(File.dirname(plugin_path)) : plugin_file
 
-  CruiseControl::Log.debug("Loading plugin #{plugin_name}")
+  CruiseControl::Log.info("Loading plugin #{plugin_name}")
   if RAILS_ENV == 'development'
     load plugin_path
   else
@@ -515,7 +516,7 @@ def plugin_loader.load_all
       if File.file?(init_path)
         load_plugin(init_path)
       else
-        log.error("No init.rb found in plugin directory #{plugin}")
+        CruiseControl::Log.error("No init.rb found in plugin directory #{plugin}")
       end
     else
       # a path is neither file nor directory. whatever else it may be, let's ignore it.

app/models/revision.rb

@@ -12,7 +12,6 @@ def to_s
     <<-EOL
 Revision #{number} committed by #{committed_by} on #{time.strftime('%Y-%m-%d %H:%M:%S') if time}
 #{message}
-#{changeset ? changeset.collect { |entry| entry.to_s }.join("\n") : nil}
     EOL
   end
 

lib/git.rb

@@ -2,30 +2,31 @@
 require 'grit'
 
 class GitRevision < Revision
-  attr_accessor :commit
+  attr_accessor :commit,:message
 
   def initialize(commit)
     @commit = commit
   end
 
   def number
-    @commit.id
+    @commit.id_abbrev
   end
 
-  def author
+  def committed_by
     @commit.author
   end
 
   def time
     @commit.authored_date
   end
+
 end
 
 class Git
   include Grit
   include CommandLine
 
-  attr_accessor :url, :path, :username, :password, :branch
+  attr_accessor :url, :path, :username, :password, :branch, :project
 
   def initialize(options = {})
     @url = options.delete(:url)
@@ -44,7 +45,11 @@ def repo
   end
 
   def latest_revision
-    GitRevision.new(repo.commits.first)
+    revision = GitRevision.new(repo.commits.first)
+    build = Build.new(@project,revision.number)
+    last_build = @project.last_complete_build || build
+    revision.message = repo.git.log({},"--pretty=oneline --abbrev-commit  #{last_build.revision}..#{build.revision}")
+    revision
   end
 
   def update_origin
@@ -69,7 +74,7 @@ def update(revision = nil)
   def up_to_date?(reasons = [], revision_number = latest_revision.number)
     return true if update_origin.empty?
     reset_from_remote
-    reasons << "New revision #{latest_revision.number} detected"
+#    reasons << "New revision #{latest_revision.number} detected"
     reasons << latest_revision
     false
   end