Allow projects to be started from a template

Started implementation for the first iteration of
gitlab-org/gitlab-ce#32420. This will allow users to select a template
to start with, instead of an empty repository in the project just
created.

Internally this is basically a small extension of the ImportExport
GitLab projects we already support. We just import a certain import
tar archive. This commits includes the first one: Ruby on Rails. In the
future more will be added.

2 files changed, 12 insertions, 10 deletions

diff --git a/app/controllers/import/gitlab_projects_controller.rb b/app/controllers/import/gitlab_projects_controller.rb
index 36d246d185b..6463d2dfd5b 100644
--- a/app/controllers/import/gitlab_projects_controller.rb
+++ b/app/controllers/import/gitlab_projects_controller.rb
@@ -12,15 +12,7 @@ class Import::GitlabProjectsController < Import::BaseController
       return redirect_back_or_default(options: { alert: "You need to upload a GitLab project export archive." })
     end
 
-    import_upload_path = Gitlab::ImportExport.import_upload_path(filename: project_params[:file].original_filename)
-
-    FileUtils.mkdir_p(File.dirname(import_upload_path))
-    FileUtils.copy_entry(project_params[:file].path, import_upload_path)
-
-    @project = Gitlab::ImportExport::ProjectCreator.new(project_params[:namespace_id],
-                                                        current_user,
-                                                        import_upload_path,
-                                                        project_params[:path]).execute
+    @project = ::Projects::GitlabProjectsImporterService.new(current_user, project_params).execute
 
     if @project.saved?
       redirect_to(
diff --git a/app/controllers/projects_controller.rb b/app/controllers/projects_controller.rb
index c769693255c..275474d02f6 100644
--- a/app/controllers/projects_controller.rb
+++ b/app/controllers/projects_controller.rb
@@ -27,7 +27,12 @@ class ProjectsController < Projects::ApplicationController
   end
 
   def create
-    @project = ::Projects::CreateService.new(current_user, project_params).execute
+    @project =
+      if project_from_template?
+        ::Projects::CreateFromTemplateService.new(current_user, project_params).execute
+      else
+        ::Projects::CreateService.new(current_user, project_params).execute
+      end
 
     if @project.saved?
       cookies[:issue_board_welcome_hidden] = { path: project_path(@project), value: nil, expires: Time.at(0) }
@@ -324,6 +329,7 @@ class ProjectsController < Projects::ApplicationController
       :runners_token,
       :tag_list,
       :visibility_level,
+      :template_title,
 
       project_feature_attributes: %i[
         builds_access_level
@@ -345,6 +351,10 @@ class ProjectsController < Projects::ApplicationController
     false
   end
 
+  def project_from_template?
+    project_params[:template_title]&.present?
+  end
+
   def project_view_files?
     if current_user
       current_user.project_view == 'files'