layout selected by controller name

app/controllers/application_controller.rb

@@ -11,19 +11,17 @@ class ApplicationController < ActionController::Base
   helper_method :abilities, :can?
   rescue_from Gitlab::Gitolite::AccessDenied do |exception|
-    render "errors/gitolite", layout: "error", status: 500
+    render "errors/gitolite", layout: "errors", status: 500
   end
   rescue_from Encoding::CompatibilityError do |exception|
-    render "errors/encoding", layout: "error", status: 500
+    render "errors/encoding", layout: "errors", status: 500
   end
   rescue_from ActiveRecord::RecordNotFound do |exception|
-    render "errors/not_found", layout: "error", status: 404
+    render "errors/not_found", layout: "errors", status: 404
   end
-  layout :layout_by_resource
-
   protected
   def check_token_auth
@@ -51,14 +49,6 @@ class ApplicationController < ActionController::Base
     end
   end
-  def layout_by_resource
-    if devise_controller?
-      "devise_layout"
-    else
-      "application"
-    end
-  end
-
   def set_current_user_for_mailer
     MailerObserver.current_user = current_user
   end
@@ -93,15 +83,15 @@ class ApplicationController < ActionController::Base
   end
   def access_denied!
-    render "errors/access_denied", layout: "error", status: 404
+    render "errors/access_denied", layout: "errors", status: 404
   end
   def not_found!
-    render "errors/not_found", layout: "error", status: 404
+    render "errors/not_found", layout: "errors", status: 404
   end
   def git_not_found!
-    render "errors/git_not_found", layout: "error", status: 404
+    render "errors/git_not_found", layout: "errors", status: 404
   end
   def method_missing(method_sym, *arguments, &block)

app/controllers/errors_controller.rb

 class ErrorsController < ApplicationController
-  layout "error"
-
   def githost
     render "errors/gitolite"
   end

app/controllers/profile_controller.rb

 class ProfileController < ApplicationController
-  layout "profile"
   before_filter :user
   def show

app/controllers/project_controller.rb

@@ -2,15 +2,4 @@ class ProjectController < ApplicationController
   before_filter :project
   # Authorize
   before_filter :add_project_abilities
-
-  layout :determine_layout
-
-  protected
-  def determine_layout
-    if @project && !@project.new_record?
-      'project'
-    else
-      'application'
-    end
-  end
 end

app/controllers/projects_controller.rb

@@ -8,6 +8,8 @@ class ProjectsController < ProjectController
   before_filter :authorize_admin_project!, only: [:edit, :update, :destroy]
   before_filter :require_non_empty_project, only: [:blob, :tree, :graph]
+  layout 'application', only: [:new, :create]
+
   def new
     @project = Project.new
   end

config/application.rb

@@ -53,5 +53,9 @@ module Gitlab
     # Add fonts
     config.assets.paths << "#{Rails.root}/app/assets/fonts"
+
+    config.to_prepare do
+      Devise::SessionsController.layout 'devise_layout'
+    end
   end
 end