Support pipelines API

Pass `updated_at` to get only incremental changes since last update

1 files changed, 84 insertions, 0 deletions

diff --git a/app/serializers/pipeline_entity.rb b/app/serializers/pipeline_entity.rb
new file mode 100644
index 00000000000..7afce8fd15b
--- /dev/null
+++ b/app/serializers/pipeline_entity.rb
@@ -0,0 +1,84 @@
+class PipelineEntity < Grape::Entity
+  include RequestAwareEntity
+
+  expose :id
+  expose :user, if: -> (pipeline, opts) { created?(pipeline, opts) }, using: UserEntity
+
+  expose :status
+  expose :duration
+  expose :finished_at
+  expose :stages_with_statuses, as: :stages, if: -> (pipeline, opts) { updated?(pipeline, opts) }, using: PipelineStageEntity
+  expose :artifacts, if: -> (pipeline, opts) { updated?(pipeline, opts) }, using: PipelineArtifactEntity
+  expose :manual_actions, if: -> (pipeline, opts) { updated?(pipeline, opts) }, using: PipelineActionEntity
+
+  expose :flags, if: -> (pipeline, opts) { created?(pipeline, opts) } do
+    expose :latest?, as: :latest
+    expose :triggered?, as: :triggered
+    expose :yaml_errors?, as: :yaml_errors do |pipeline|
+      pipeline.yaml_errors.present?
+    end
+    expose :stuck?, as: :stuck do |pipeline|
+      pipeline.builds.any?(&:stuck?)
+    end
+  end
+
+  expose :ref, if: -> (pipeline, opts) { created?(pipeline, opts) } do
+    expose :name do |pipeline|
+      pipeline.ref
+    end
+
+    expose :ref_url do |pipeline|
+      namespace_project_tree_url(
+        pipeline.project.namespace,
+        pipeline.project,
+        id: pipeline.ref)
+    end
+
+    expose :tag?
+  end
+
+  expose :commit, if: -> (pipeline, opts) { created?(pipeline, opts) } do
+    expose :short_sha
+
+    expose :sha_url do |pipeline|
+      namespace_project_commit_path(
+        pipeline.project.namespace,
+        pipeline.project,
+        pipeline.sha)
+    end
+
+    expose :title do |pipeline|
+      pipeline.commit.try(:title)
+    end
+
+    expose :author, using: UserEntity do |pipeline|
+      pipeline.commit.try(:author)
+    end
+  end
+
+  expose :retry_url, if: -> (pipeline, opts) { updated?(pipeline, opts) } do |pipeline|
+    can?(current_user, :update_pipeline, pipeline.project) &&
+      pipeline.retryable? &&
+      retry_namespace_project_pipeline_path(pipeline.project.namespace, pipeline.project, pipeline.id)
+  end
+
+  expose :cancel_url, if: -> (pipeline, opts) { updated?(pipeline, opts) } do |pipeline|
+    can?(current_user, :update_pipeline, pipeline.project) &&
+      pipeline.cancelable? &&
+      cancel_namespace_project_pipeline_path(pipeline.project.namespace, pipeline.project, pipeline.id)
+  end
+
+  private
+
+  def last_updated(opts)
+    opts.fetch(:last_updated)
+  end
+
+  def created?(pipeline, opts)
+    !last_updated(opts) || pipeline.created_at > last_updated(opts)
+  end
+
+  def updated?(pipeline, opts)
+    !last_updated(opts) || pipeline.updated_at > last_updated(opts)
+  end
+end