Adds a way to start multiple manual jobs in stage

- Adds an endpoint on PipelinesController
- Adds a service that iterates over every build in a stage and
plays it.
- Includes 'play_manual' details on EntitySerializer
- Builds a new Stage state: PlayManual. An stage can take this status if
it has manual builds or an skipped, scheduled or manual status
- Includes FE modifications and specs

1 files changed, 25 insertions, 0 deletions

diff --git a/app/controllers/projects/stages_controller.rb b/app/controllers/projects/stages_controller.rb
new file mode 100644
index 00000000000..c8db5b1277f
--- /dev/null
+++ b/app/controllers/projects/stages_controller.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+class Projects::StagesController < Projects::PipelinesController
+  before_action :authorize_update_pipeline!
+
+  def play_manual
+    ::Ci::PlayManualStageService
+      .new(@project, current_user, pipeline: pipeline)
+      .execute(stage)
+
+    respond_to do |format|
+      format.json do
+        render json: StageSerializer
+          .new(project: @project, current_user: @current_user)
+          .represent(stage)
+      end
+    end
+  end
+
+  private
+
+  def stage
+    @pipeline_stage ||= pipeline.find_stage_by_name!(params[:stage_name])
+  end
+end