Add BlameController, remove Refs#blame action

app/controllers/blame_controller.rb

@@ -0,0 +1,45 @@
+# Controller for viewing a file's blame
+class BlameController < ApplicationController
+  # Thrown when given an invalid path
+  class InvalidPathError < StandardError; end
+
+  include RefExtractor
+
+  layout "project"
+
+  before_filter :project
+
+  # Authorize
+  before_filter :add_project_abilities
+  before_filter :authorize_read_project!
+  before_filter :authorize_code_access!
+  before_filter :require_non_empty_project
+
+  before_filter :define_tree_vars
+
+  def show
+    @blame = Grit::Blob.blame(@repo, @commit.id, @path)
+  end
+
+  private
+
+  def define_tree_vars
+    @ref, @path = extract_ref(params[:id])
+
+    @id     = File.join(@ref, @path)
+    @repo   = @project.repo
+    @commit = CommitDecorator.decorate(@project.commit(@ref))
+
+    @tree = Tree.new(@commit.tree, @project, @ref, @path)
+    @tree = TreeDecorator.new(@tree)
+
+    raise InvalidPathError if @tree.invalid?
+
+    @hex_path = Digest::SHA1.hexdigest(@path)
+
+    @history_path = project_tree_path(@project, @id)
+    @logs_path    = logs_file_project_ref_path(@project, @ref, @path)
+  rescue NoMethodError, InvalidPathError
+    not_found!
+  end
+end

app/controllers/refs_controller.rb

@@ -9,7 +9,7 @@ class RefsController < ApplicationController
   before_filter :require_non_empty_project
 
   before_filter :ref
-  before_filter :define_tree_vars, only: [:tree, :blob, :blame, :logs_tree]
+  before_filter :define_tree_vars, only: [:blob, :logs_tree]
   before_filter :render_full_content
 
   layout "project"
@@ -79,10 +79,6 @@ class RefsController < ApplicationController
     end
   end
 
-  def blame
-    @blame = Grit::Blob.blame(@repo, @commit.id, params[:path])
-  end
-
   protected
 
   def define_tree_vars