Rename repo feature

app/controllers/application_controller.rb

@@ -69,7 +69,7 @@ class ApplicationController < ActionController::Base
       @project
     else
       @project = nil
-      render_404
+      render_404 and return
     end
   end
 

app/controllers/projects_controller.rb

@@ -33,12 +33,12 @@ class ProjectsController < ProjectResourceController
   end
 
   def update
-    status = ::Projects::UpdateContext.new(project, current_user, params).execute
+    status = ::Projects::UpdateContext.new(@project, current_user, params).execute
 
     respond_to do |format|
       if status
         flash[:notice] = 'Project was successfully updated.'
-        format.html { redirect_to edit_project_path(project), notice: 'Project was successfully updated.' }
+        format.html { redirect_to edit_project_path(@project), notice: 'Project was successfully updated.' }
         format.js
       else
         format.html { render action: "edit" }

app/models/project.rb

@@ -423,4 +423,28 @@ class Project < ActiveRecord::Base
   def forked?
     !(forked_project_link.nil? || forked_project_link.forked_from_project.nil?)
   end
+
+  def rename_repo
+    old_path_with_namespace = File.join(namespace_dir, path_was)
+    new_path_with_namespace = File.join(namespace_dir, path)
+
+    if gitlab_shell.mv_repository(old_path_with_namespace, new_path_with_namespace)
+      # If repository moved successfully we need to remove old satellite
+      # and send update instructions to users.
+      # However we cannot allow rollback since we moved repository
+      # So we basically we mute exceptions in next actions
+      begin
+        gitlab_shell.rm_satellites(old_path_with_namespace)
+        send_move_instructions
+      rescue
+        # Returning false does not rolback after_* transaction but gives
+        # us information about failing some of tasks
+        false
+      end
+    else
+      # if we cannot move namespace directory we should rollback
+      # db changes in order to prevent out of sync between db and fs
+      raise Exception.new('repository cannot be renamed')
+    end
+  end
 end

app/observers/project_observer.rb

@@ -12,6 +12,7 @@ class ProjectObserver < BaseObserver
 
   def after_update(project)
     project.send_move_instructions if project.namespace_id_changed?
+    project.rename_repo if project.path_changed?
   end
 
   def after_destroy(project)

app/views/projects/edit.html.haml

@@ -11,6 +11,8 @@
           %li.active
             = link_to 'Settings', '#tab-settings', 'data-toggle' => 'tab'
           %li
+            = link_to 'Rename repo', '#tab-rename', 'data-toggle' => 'tab'
+          %li
             = link_to 'Transfer', '#tab-transfer', 'data-toggle' => 'tab'
           %li
             = link_to 'Remove', '#tab-remove', 'data-toggle' => 'tab'
@@ -137,6 +139,24 @@
             - else
               %p.nothing_here_message Only project owner can transfer a project
 
+          .tab-pane#tab-rename
+            .ui-box.ui-box-danger
+              %h5.title Rename repository
+              .errors-holder
+              .form-holder
+                = form_for(@project) do |f|
+                  .control-group
+                    = f.label :path do
+                      %span Path
+                    .controls
+                      .clearfix
+                        = f.text_field :path
+                      %ul
+                        %li Be careful. Rename of project repo can have unintended side effects
+                        %li You will need to update your local repositories to point to the new location.
+                  .form-actions
+                    = f.submit 'Rename', class: "btn btn-remove"
+
           .tab-pane#tab-remove
             - if can?(current_user, :remove_project, @project)
               .ui-box.ui-box-danger