Move code related to registry to multiple controllers

app/controllers/projects/registry/application_controller.rb

@@ -3,8 +3,14 @@ module Projects
     class ApplicationController < Projects::ApplicationController
       layout 'project'
 
-      before_action :verify_registry_enabled
+      before_action :verify_registry_enabled!
       before_action :authorize_read_container_image!
+
+      private
+
+      def verify_registry_enabled!
+        render_404 unless Gitlab.config.registry.enabled
+      end
     end
   end
 end

app/controllers/projects/registry/repositories_controller.rb

@@ -8,47 +8,19 @@ module Projects
       end
 
       def destroy
-        if tag
-          delete_tag
-        else
-          delete_image
-        end
-      end
-
-      private
-
-      def registry_url
-        @registry_url ||= namespace_project_container_registry_index_path(project.namespace, project)
-      end
-
-      def verify_registry_enabled
-        render_404 unless Gitlab.config.registry.enabled
-      end
-
-      def delete_image
         if image.destroy
-          redirect_to registry_url
+          redirect_to project_container_registry_path(@project)
         else
-          redirect_to registry_url, alert: 'Failed to remove image'
+          redirect_to project_container_registry_path(@project),
+                      alert: 'Failed to remove images repository!'
         end
       end
 
-      def delete_tag
-        if tag.delete
-          image.destroy if image.tags.empty?
-          redirect_to registry_url
-        else
-          redirect_to registry_url, alert: 'Failed to remove tag'
-        end
-      end
+      private
 
       def image
         @image ||= project.container_repositories.find_by(id: params[:id])
       end
-
-      def tag
-        @tag ||= image.tag(params[:tag]) if params[:tag].present?
-      end
     end
   end
 end

app/controllers/projects/registry/tags_controller.rb

@@ -2,6 +2,26 @@ module Projects
   module Registry
     class TagsController < ::Projects::Registry::ApplicationController
       before_action :authorize_update_container_image!, only: [:destroy]
+
+      def destroy
+        if tag.delete
+          redirect_to project_container_registry_path(@project)
+        else
+          redirect_to project_container_registry_path(@project),
+                      alert: 'Failed to remove repository tag!'
+        end
+      end
+
+      private
+
+      def repository
+        @image ||= project.container_repositories
+          .find_by(id: params[:repository_id])
+      end
+
+      def tag
+        @tag ||= repository.tag(params[:id]) if params[:id].present?
+      end
     end
   end
 end

app/views/projects/registry/repositories/_tag.html.haml

@@ -25,5 +25,10 @@
   - if can?(current_user, :update_container_image, @project)
     %td.content
       .controls.hidden-xs.pull-right
-        = link_to namespace_project_container_registry_path(@project.namespace, @project, { id: tag.repository.id, tag: tag.name} ), class: 'btn btn-remove has-tooltip', title: "Remove tag", data: { confirm: "Due to a Docker limitation, all tags with the same ID will also be deleted. Are you sure?" }, method: :delete do
-          = icon("trash cred")
+        - notice = 'Due to a Docker limitation, all tags with the same ID will also be deleted. Are you sure?'
+        = link_to namespace_project_registry_repository_tag_path(@project.namespace, @project, tag.repository, tag.name),
+                  method: :delete,
+                  class: 'btn btn-remove has-tooltip',
+                  title: 'Remove image tag',
+                  data: { confirm: notice } do
+          = icon('trash cred')

config/routes/project.rb

@@ -224,6 +224,12 @@ constraints(ProjectUrlConstrainer.new) do
         only: [:index, :destroy],
         constraints: { id: Gitlab::Regex.container_registry_reference_regex }
 
+      namespace :registry do
+        resources :repository, only: [] do
+          resources :tags, only: [:destroy]
+        end
+      end
+
       resources :milestones, constraints: { id: /\d+/ } do
         member do
           put :sort_issues