branch/tag memorization

app/controllers/application_controller.rb

@@ -41,4 +41,13 @@ class ApplicationController < ActionController::Base
       super
     end
   end
+
+  def refs_from_cookie
+    # branch is high priority so we should reset
+    # it if tag selected
+    cookies[:branch] = nil if params[:tag]
+
+    params[:branch] ||= cookies[:branch]
+    params[:tag] ||= cookies[:tag]
+  end
 end

app/controllers/commits_controller.rb

@@ -8,6 +8,7 @@ class CommitsController < ApplicationController
   before_filter :authorize_read_project!
 
   def index
+    refs_from_cookie
     @repo = project.repo
     @branch = if !params[:branch].blank?
                 params[:branch]

app/controllers/projects_controller.rb

@@ -16,6 +16,7 @@ class ProjectsController < ApplicationController
   end
 
   def show
+    refs_from_cookie
     @repo = project.repo
     @commit = @repo.commits.first
     @tree = @commit.tree
@@ -32,6 +33,7 @@ class ProjectsController < ApplicationController
   end
 
   def tree
+    refs_from_cookie
     @repo = project.repo
     @branch = if !params[:branch].blank?
                 params[:branch]