Implement pipeline hooks, extracted from !5525

Closes #20115

19 files changed, 210 insertions, 18 deletions

diff --git a/CHANGELOG b/CHANGELOG
index c099c63ce86..3199e66a0d9 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -28,6 +28,7 @@ v 8.11.0 (unreleased)
   - The overhead of instrumented method calls has been reduced
   - Remove `search_id` of labels dropdown filter to fix 'Missleading URI for labels in Merge Requests and Issues view'. !5368 (Scott Le)
   - Load project invited groups and members eagerly in `ProjectTeam#fetch_members`
+  - Add pipeline events hook
   - Bump gitlab_git to speedup DiffCollection iterations
   - Make branches sortable without push permission !5462 (winniehell)
   - Check for Ci::Build artifacts at database level on pipeline partial
diff --git a/app/controllers/concerns/service_params.rb b/app/controllers/concerns/service_params.rb
index 471d15af913..58877c5ad5d 100644
--- a/app/controllers/concerns/service_params.rb
+++ b/app/controllers/concerns/service_params.rb
@@ -7,11 +7,12 @@ module ServiceParams
                     :build_key, :server, :teamcity_url, :drone_url, :build_type,
                     :description, :issues_url, :new_issue_url, :restrict_to_branch, :channel,
                     :colorize_messages, :channels,
-                    :push_events, :issues_events, :merge_requests_events, :tag_push_events,
-                    :note_events, :build_events, :wiki_page_events,
-                    :notify_only_broken_builds, :add_pusher,
-                    :send_from_committer_email, :disable_diffs, :external_wiki_url,
-                    :notify, :color,
+                    # See app/helpers/services_helper.rb
+                    # for why we need issues_events and merge_requests_events.
+                    :issues_events, :merge_requests_events,
+                    :notify_only_broken_builds, :notify_only_broken_pipelines,
+                    :add_pusher, :send_from_committer_email, :disable_diffs,
+                    :external_wiki_url, :notify, :color,
                     :server_host, :server_port, :default_irc_uri, :enable_ssl_verification,
                     :jira_issue_transition_id]
 
@@ -19,9 +20,7 @@ module ServiceParams
   FILTER_BLANK_PARAMS = [:password]
 
   def service_params
-    dynamic_params = []
-    dynamic_params.concat(@service.event_channel_names)
-
+    dynamic_params = @service.event_channel_names + @service.event_names
     service_params = params.permit(:id, service: ALLOWED_PARAMS + dynamic_params)
 
     if service_params[:service].is_a?(Hash)
diff --git a/app/controllers/projects/hooks_controller.rb b/app/controllers/projects/hooks_controller.rb
index a60027ff477..b5624046387 100644
--- a/app/controllers/projects/hooks_controller.rb
+++ b/app/controllers/projects/hooks_controller.rb
@@ -56,6 +56,7 @@ class Projects::HooksController < Projects::ApplicationController
   def hook_params
     params.require(:hook).permit(
       :build_events,
+      :pipeline_events,
       :enable_ssl_verification,
       :issues_events,
       :merge_requests_events,
diff --git a/app/models/ci/pipeline.rb b/app/models/ci/pipeline.rb
index bce6a992af6..4e6ccf48c68 100644
--- a/app/models/ci/pipeline.rb
+++ b/app/models/ci/pipeline.rb
@@ -237,7 +237,15 @@ module Ci
       self.started_at = statuses.started_at
       self.finished_at = statuses.finished_at
       self.duration = statuses.latest.duration
-      save
+      saved = save
+      execute_hooks if saved && !skip_ci?
+      saved
+    end
+
+    def execute_hooks
+      pipeline_data = Gitlab::DataBuilder::PipelineDataBuilder.build(self)
+      project.execute_hooks(pipeline_data, :pipeline_hooks)
+      project.execute_services(pipeline_data.dup, :pipeline_hooks)
     end
 
     def keep_around_commits
diff --git a/app/models/hooks/project_hook.rb b/app/models/hooks/project_hook.rb
index ba42a8eeb70..836a75b0608 100644
--- a/app/models/hooks/project_hook.rb
+++ b/app/models/hooks/project_hook.rb
@@ -5,5 +5,6 @@ class ProjectHook < WebHook
   scope :note_hooks, -> { where(note_events: true) }
   scope :merge_request_hooks, -> { where(merge_requests_events: true) }
   scope :build_hooks, -> { where(build_events: true) }
+  scope :pipeline_hooks, -> { where(pipeline_events: true) }
   scope :wiki_page_hooks, ->  { where(wiki_page_events: true) }
 end
diff --git a/app/models/hooks/web_hook.rb b/app/models/hooks/web_hook.rb
index 8b87b6c3d64..f365dee3141 100644
--- a/app/models/hooks/web_hook.rb
+++ b/app/models/hooks/web_hook.rb
@@ -8,6 +8,7 @@ class WebHook < ActiveRecord::Base
   default_value_for :merge_requests_events, false
   default_value_for :tag_push_events, false
   default_value_for :build_events, false
+  default_value_for :pipeline_events, false
   default_value_for :enable_ssl_verification, true
 
   scope :push_hooks, -> { where(push_events: true) }
diff --git a/app/models/service.rb b/app/models/service.rb
index 40cd9b861f0..e4cd44f542a 100644
--- a/app/models/service.rb
+++ b/app/models/service.rb
@@ -36,6 +36,7 @@ class Service < ActiveRecord::Base
   scope :merge_request_hooks, -> { where(merge_requests_events: true, active: true) }
   scope :note_hooks, -> { where(note_events: true, active: true) }
   scope :build_hooks, -> { where(build_events: true, active: true) }
+  scope :pipeline_hooks, -> { where(pipeline_events: true, active: true) }
   scope :wiki_page_hooks, -> { where(wiki_page_events: true, active: true) }
   scope :external_issue_trackers, -> { issue_trackers.active.without_defaults }
 
@@ -86,6 +87,10 @@ class Service < ActiveRecord::Base
     []
   end
 
+  def event_names
+    supported_events.map { |event| "#{event}_events" }
+  end
+
   def event_field(event)
     nil
   end
diff --git a/app/services/ci/create_pipeline_service.rb b/app/services/ci/create_pipeline_service.rb
index be91bf0db85..7a8b0683acb 100644
--- a/app/services/ci/create_pipeline_service.rb
+++ b/app/services/ci/create_pipeline_service.rb
@@ -27,6 +27,7 @@ module Ci
       end
 
       pipeline.save!
+      pipeline.touch
 
       unless pipeline.create_builds(current_user)
         pipeline.errors.add(:base, 'No builds for this pipeline.')
diff --git a/app/views/projects/hooks/_project_hook.html.haml b/app/views/projects/hooks/_project_hook.html.haml
index 8151187d499..3fcf1692e09 100644
--- a/app/views/projects/hooks/_project_hook.html.haml
+++ b/app/views/projects/hooks/_project_hook.html.haml
@@ -3,7 +3,7 @@
     .col-md-8.col-lg-7
       %strong.light-header= hook.url
       %div
-        - %w(push_events tag_push_events issues_events note_events merge_requests_events build_events wiki_page_events).each do |trigger|
+        - %w(push_events tag_push_events issues_events note_events merge_requests_events build_events pipeline_events wiki_page_events).each do |trigger|
           - if hook.send(trigger)
             %span.label.label-gray.deploy-project-label= trigger.titleize
     .col-md-4.col-lg-5.text-right-lg.prepend-top-5
diff --git a/app/views/shared/web_hooks/_form.html.haml b/app/views/shared/web_hooks/_form.html.haml
index 2585ed9360b..106161d6515 100644
--- a/app/views/shared/web_hooks/_form.html.haml
+++ b/app/views/shared/web_hooks/_form.html.haml
@@ -66,6 +66,13 @@
               %p.light
                 This url will be triggered when the build status changes
           %li
+            = f.check_box :pipeline_events, class: 'pull-left'
+            .prepend-left-20
+              = f.label :pipeline_events, class: 'list-label' do
+                %strong Pipeline events
+              %p.light
+                This url will be triggered when the pipeline status changes
+          %li
             = f.check_box :wiki_page_events, class: 'pull-left'
             .prepend-left-20
               = f.label :wiki_page_events, class: 'list-label' do
diff --git a/db/migrate/20160728081025_add_pipeline_events_to_web_hooks.rb b/db/migrate/20160728081025_add_pipeline_events_to_web_hooks.rb
new file mode 100644
index 00000000000..b800e6d7283
--- /dev/null
+++ b/db/migrate/20160728081025_add_pipeline_events_to_web_hooks.rb
@@ -0,0 +1,16 @@
+class AddPipelineEventsToWebHooks < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default(:web_hooks, :pipeline_events, :boolean,
+                            default: false, allow_null: false)
+  end
+
+  def down
+    remove_column(:web_hooks, :pipeline_events)
+  end
+end
diff --git a/db/migrate/20160728103734_add_pipeline_events_to_services.rb b/db/migrate/20160728103734_add_pipeline_events_to_services.rb
new file mode 100644
index 00000000000..bcd24fe1566
--- /dev/null
+++ b/db/migrate/20160728103734_add_pipeline_events_to_services.rb
@@ -0,0 +1,16 @@
+class AddPipelineEventsToServices < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_column_with_default(:services, :pipeline_events, :boolean,
+                            default: false, allow_null: false)
+  end
+
+  def down
+    remove_column(:services, :pipeline_events)
+  end
+end
diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 3e21b7a0b8a..b6f6b11d97b 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -48,7 +48,8 @@ module API
 
     class ProjectHook < Hook
       expose :project_id, :push_events
-      expose :issues_events, :merge_requests_events, :tag_push_events, :note_events, :build_events
+      expose :issues_events, :merge_requests_events, :tag_push_events
+      expose :note_events, :build_events, :pipeline_events
       expose :enable_ssl_verification
     end
 
@@ -342,7 +343,8 @@ module API
 
     class ProjectService < Grape::Entity
       expose :id, :title, :created_at, :updated_at, :active
-      expose :push_events, :issues_events, :merge_requests_events, :tag_push_events, :note_events, :build_events
+      expose :push_events, :issues_events, :merge_requests_events
+      expose :tag_push_events, :note_events, :build_events, :pipeline_events
       # Expose serialized properties
       expose :properties do |service, options|
         field_names = service.fields.
diff --git a/lib/api/project_hooks.rb b/lib/api/project_hooks.rb
index 6bb70bc8bc3..3f63cd678e8 100644
--- a/lib/api/project_hooks.rb
+++ b/lib/api/project_hooks.rb
@@ -45,6 +45,7 @@ module API
           :tag_push_events,
           :note_events,
           :build_events,
+          :pipeline_events,
           :enable_ssl_verification
         ]
         @hook = user_project.hooks.new(attrs)
@@ -78,6 +79,7 @@ module API
           :tag_push_events,
           :note_events,
           :build_events,
+          :pipeline_events,
           :enable_ssl_verification
         ]
 
diff --git a/lib/gitlab/data_builder/pipeline_data_builder.rb b/lib/gitlab/data_builder/pipeline_data_builder.rb
new file mode 100644
index 00000000000..13417ba09eb
--- /dev/null
+++ b/lib/gitlab/data_builder/pipeline_data_builder.rb
@@ -0,0 +1,66 @@
+module Gitlab
+  module DataBuilder
+    module PipelineDataBuilder
+      module_function
+
+      def build(pipeline)
+        {
+          object_kind: 'pipeline',
+          object_attributes: hook_attrs(pipeline),
+          user: pipeline.user.try(:hook_attrs),
+          project: pipeline.project.hook_attrs(backward: false),
+          commit: pipeline.commit.try(:hook_attrs),
+          builds: pipeline.builds.map(&method(:build_hook_attrs))
+        }
+      end
+
+      def hook_attrs(pipeline)
+        first_pending_build = pipeline.builds.first_pending
+        config_processor = pipeline.config_processor
+
+        {
+          id: pipeline.id,
+          ref: pipeline.ref,
+          tag: pipeline.tag,
+          sha: pipeline.sha,
+          before_sha: pipeline.before_sha,
+          status: pipeline.status,
+          stage: first_pending_build.try(:stage),
+          stages: config_processor.try(:stages),
+          created_at: pipeline.created_at,
+          finished_at: pipeline.finished_at,
+          duration: pipeline.duration
+        }
+      end
+
+      def build_hook_attrs(build)
+        {
+          id: build.id,
+          stage: build.stage,
+          name: build.name,
+          status: build.status,
+          created_at: build.created_at,
+          started_at: build.started_at,
+          finished_at: build.finished_at,
+          when: build.when,
+          manual: build.manual?,
+          user: build.user.try(:hook_attrs),
+          runner: build.runner && runner_hook_attrs(build.runner),
+          artifacts_file: {
+            filename: build.artifacts_file.filename,
+            size: build.artifacts_size
+          }
+        }
+      end
+
+      def runner_hook_attrs(runner)
+        {
+          id: runner.id,
+          description: runner.description,
+          active: runner.active?,
+          is_shared: runner.is_shared?
+        }
+      end
+    end
+  end
+end
diff --git a/spec/lib/gitlab/data_builder/pipeline_data_builder_spec.rb b/spec/lib/gitlab/data_builder/pipeline_data_builder_spec.rb
new file mode 100644
index 00000000000..24d39b318c0
--- /dev/null
+++ b/spec/lib/gitlab/data_builder/pipeline_data_builder_spec.rb
@@ -0,0 +1,32 @@
+require 'spec_helper'
+
+describe Gitlab::DataBuilder::PipelineDataBuilder do
+  let(:user) { create(:user) }
+  let(:project) { create(:project) }
+  let(:pipeline) do
+    create(:ci_pipeline,
+           project: project, status: 'success',
+           sha: project.commit.sha, ref: project.default_branch)
+  end
+  let!(:build) { create(:ci_build, pipeline: pipeline) }
+
+  describe '.build' do
+    let(:data) { Gitlab::DataBuilder::PipelineDataBuilder.build(pipeline) }
+    let(:attributes) { data[:object_attributes] }
+    let(:build_data) { data[:builds].first }
+    let(:project_data) { data[:project] }
+
+    it { expect(attributes).to be_a(Hash) }
+    it { expect(attributes[:ref]).to eq(pipeline.ref) }
+    it { expect(attributes[:sha]).to eq(pipeline.sha) }
+    it { expect(attributes[:tag]).to eq(pipeline.tag) }
+    it { expect(attributes[:id]).to eq(pipeline.id) }
+    it { expect(attributes[:status]).to eq(pipeline.status) }
+
+    it { expect(build_data).to be_a(Hash) }
+    it { expect(build_data[:id]).to eq(build.id) }
+    it { expect(build_data[:status]).to eq(build.status) }
+
+    it { expect(project_data).to eq(project.hook_attrs(backward: false)) }
+  end
+end
diff --git a/spec/models/build_spec.rb b/spec/models/build_spec.rb
index dc88697199b..47c489e6af1 100644
--- a/spec/models/build_spec.rb
+++ b/spec/models/build_spec.rb
@@ -275,7 +275,8 @@ describe Ci::Build, models: true do
 
     context 'when yaml_variables are undefined' do
       before do
-        build.yaml_variables = nil
+        build.update(yaml_variables: nil)
+        build.reload # reload pipeline so that it resets config_processor
       end
 
       context 'use from gitlab-ci.yml' do
@@ -854,7 +855,8 @@ describe Ci::Build, models: true do
 
     context 'if is undefined' do
       before do
-        build.when = nil
+        build.update(when: nil)
+        build.reload # reload pipeline so that it resets config_processor
       end
 
       context 'use from gitlab-ci.yml' do
diff --git a/spec/models/ci/pipeline_spec.rb b/spec/models/ci/pipeline_spec.rb
index 0d4c86955ce..aa05fc78f94 100644
--- a/spec/models/ci/pipeline_spec.rb
+++ b/spec/models/ci/pipeline_spec.rb
@@ -513,7 +513,7 @@ describe Ci::Pipeline, models: true do
         create :ci_build, :success, pipeline: pipeline, name: 'rspec'
         create :ci_build, :allowed_to_fail, :failed, pipeline: pipeline, name: 'rubocop'
       end
-      
+
       it 'returns true' do
         is_expected.to be_truthy
       end
@@ -524,7 +524,7 @@ describe Ci::Pipeline, models: true do
         create :ci_build, :success, pipeline: pipeline, name: 'rspec'
         create :ci_build, :allowed_to_fail, :success, pipeline: pipeline, name: 'rubocop'
       end
-      
+
       it 'returns false' do
         is_expected.to be_falsey
       end
@@ -542,4 +542,33 @@ describe Ci::Pipeline, models: true do
       end
     end
   end
+
+  describe '#execute_hooks' do
+    let!(:hook) do
+      create(:project_hook, project: project, pipeline_events: enabled)
+    end
+    let(:enabled) { raise NotImplementedError }
+
+    before do
+      WebMock.stub_request(:post, hook.url)
+      pipeline.touch
+      ProjectWebHookWorker.drain
+    end
+
+    context 'with pipeline hooks enabled' do
+      let(:enabled) { true }
+
+      it 'executes pipeline_hook after touched' do
+        expect(WebMock).to have_requested(:post, hook.url).once
+      end
+    end
+
+    context 'with pipeline hooks disabled' do
+      let(:enabled) { false }
+
+      it 'did not execute pipeline_hook after touched' do
+        expect(WebMock).not_to have_requested(:post, hook.url)
+      end
+    end
+  end
 end
diff --git a/spec/requests/api/project_hooks_spec.rb b/spec/requests/api/project_hooks_spec.rb
index fd1fffa6223..504deed81f9 100644
--- a/spec/requests/api/project_hooks_spec.rb
+++ b/spec/requests/api/project_hooks_spec.rb
@@ -8,8 +8,9 @@ describe API::API, 'ProjectHooks', api: true do
   let!(:hook) do
     create(:project_hook,
            project: project, url: "http://example.com",
-           push_events: true, merge_requests_events: true, tag_push_events: true,
-           issues_events: true, note_events: true, build_events: true,
+           push_events: true, merge_requests_events: true,
+           tag_push_events: true, issues_events: true, note_events: true,
+           build_events: true, pipeline_events: true,
            enable_ssl_verification: true)
   end
 
@@ -33,6 +34,7 @@ describe API::API, 'ProjectHooks', api: true do
         expect(json_response.first['tag_push_events']).to eq(true)
         expect(json_response.first['note_events']).to eq(true)
         expect(json_response.first['build_events']).to eq(true)
+        expect(json_response.first['pipeline_events']).to eq(true)
         expect(json_response.first['enable_ssl_verification']).to eq(true)
       end
     end
@@ -91,6 +93,7 @@ describe API::API, 'ProjectHooks', api: true do
       expect(json_response['tag_push_events']).to eq(false)
       expect(json_response['note_events']).to eq(false)
       expect(json_response['build_events']).to eq(false)
+      expect(json_response['pipeline_events']).to eq(false)
       expect(json_response['enable_ssl_verification']).to eq(true)
     end