Merge branch '23205-information-about-environments-build-page' into 'master'

Add environment info to builds page

![Screen_Shot_2016-11-02_at_5.44.01_PM](/uploads/3443d9518997147d1e6f41830e3774ff/Screen_Shot_2016-11-02_at_5.44.01_PM.png)

Closes #23205

See merge request !7251

9 files changed, 362 insertions, 12 deletions

diff --git a/app/assets/stylesheets/pages/builds.scss b/app/assets/stylesheets/pages/builds.scss
index 5320f3aba66..48f11eb2552 100644
--- a/app/assets/stylesheets/pages/builds.scss
+++ b/app/assets/stylesheets/pages/builds.scss
@@ -40,6 +40,19 @@
       margin-bottom: 10px;
     }
   }
+
+  .environment-information {
+    background-color: $background-color;
+    border: 1px solid $border-color;
+    padding: 12px $gl-padding;
+    border-radius: $border-radius-default;
+
+    svg {
+      position: relative;
+      top: 1px;
+      margin-right: 5px;
+    }
+  }
 }
 
 .build-header {
diff --git a/app/helpers/environment_helper.rb b/app/helpers/environment_helper.rb
new file mode 100644
index 00000000000..27975b7ddb7
--- /dev/null
+++ b/app/helpers/environment_helper.rb
@@ -0,0 +1,29 @@
+module EnvironmentHelper
+  def environment_for_build(project, build)
+    return unless build.environment
+
+    project.environments.find_by(name: build.expanded_environment_name)
+  end
+
+  def environment_link_for_build(project, build)
+    environment = environment_for_build(project, build)
+    if environment
+      link_to environment.name, namespace_project_environment_path(project.namespace, project, environment)
+    else
+      content_tag :span, build.expanded_environment_name
+    end
+  end
+
+  def deployment_link(deployment)
+    return unless deployment
+
+    link_to "##{deployment.iid}", [deployment.project.namespace.becomes(Namespace), deployment.project, deployment.deployable]
+  end
+
+  def last_deployment_link_for_environment_build(project, build)
+    environment = environment_for_build(project, build)
+    return unless environment
+
+    deployment_link(environment.last_deployment)
+  end
+end
diff --git a/app/models/ci/build.rb b/app/models/ci/build.rb
index 33612256540..5d2e7d94190 100644
--- a/app/models/ci/build.rb
+++ b/app/models/ci/build.rb
@@ -7,6 +7,8 @@ module Ci
     belongs_to :trigger_request
     belongs_to :erased_by, class_name: 'User'
 
+    has_many :deployments, as: :deployable
+
     serialize :options
     serialize :yaml_variables
 
@@ -125,6 +127,34 @@ module Ci
       !self.pipeline.statuses.latest.include?(self)
     end
 
+    def expanded_environment_name
+      ExpandVariables.expand(environment, variables) if environment
+    end
+
+    def has_environment?
+      self.environment.present?
+    end
+
+    def starts_environment?
+      has_environment? && self.environment_action == 'start'
+    end
+
+    def stops_environment?
+      has_environment? && self.environment_action == 'stop'
+    end
+
+    def environment_action
+      self.options.fetch(:environment, {}).fetch(:action, 'start')
+    end
+
+    def outdated_deployment?
+      success? && !last_deployment.try(:last?)
+    end
+
+    def last_deployment
+      deployments.last
+    end
+
     def depends_on_builds
       # Get builds of the same type
       latest_builds = self.pipeline.builds.latest
diff --git a/app/views/projects/builds/show.html.haml b/app/views/projects/builds/show.html.haml
index f533eec642e..d8cbfd7173a 100644
--- a/app/views/projects/builds/show.html.haml
+++ b/app/views/projects/builds/show.html.haml
@@ -26,6 +26,30 @@
             = link_to namespace_project_runners_path(@build.project.namespace, @build.project) do
               Runners page
 
+    - if @build.starts_environment?
+      .prepend-top-default
+        .environment-information
+          - if @build.outdated_deployment?
+            = ci_icon_for_status('success_with_warnings')
+          - else
+            = ci_icon_for_status(@build.status)
+
+          - environment = environment_for_build(@build.project, @build)
+          - if @build.success? && @build.last_deployment.present?
+            - if @build.last_deployment.last?
+              This build is the most recent deployment to #{environment_link_for_build(@build.project, @build)}.
+            - else
+              This build is an out-of-date deployment to #{environment_link_for_build(@build.project, @build)}.
+              - if environment.last_deployment
+                View the most recent deployment #{deployment_link(environment.last_deployment)}.
+          - elsif @build.complete? && !@build.success?
+            The deployment of this build to #{environment_link_for_build(@build.project, @build)} did not succeed.
+          - else
+            This build is creating a deployment to #{environment_link_for_build(@build.project, @build)}
+            - if environment.last_deployment
+              and will overwrite the
+              = link_to 'latest deployment', deployment_link(environment.last_deployment)
+
     .prepend-top-default
       - if @build.erased?
         .erased.alert.alert-warning
diff --git a/app/workers/build_success_worker.rb b/app/workers/build_success_worker.rb
index e0ad5268664..e17add7421f 100644
--- a/app/workers/build_success_worker.rb
+++ b/app/workers/build_success_worker.rb
@@ -4,15 +4,13 @@ class BuildSuccessWorker
 
   def perform(build_id)
     Ci::Build.find_by(id: build_id).try do |build|
-      create_deployment(build)
+      create_deployment(build) if build.has_environment?
     end
   end
 
   private
 
   def create_deployment(build)
-    return if build.environment.blank?
-
     service = CreateDeploymentService.new(
       build.project, build.user,
       environment: build.environment,
diff --git a/spec/models/build_spec.rb b/spec/models/build_spec.rb
index ae185de9ca3..ef07f2275b1 100644
--- a/spec/models/build_spec.rb
+++ b/spec/models/build_spec.rb
@@ -1052,4 +1052,132 @@ describe Ci::Build, models: true do
       end
     end
   end
+
+  describe '#has_environment?' do
+    subject { build.has_environment? }
+
+    context 'when environment is defined' do
+      before do
+        build.update(environment: 'review')
+      end
+
+      it { is_expected.to be_truthy }
+    end
+
+    context 'when environment is not defined' do
+      before do
+        build.update(environment: nil)
+      end
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
+  describe '#starts_environment?' do
+    subject { build.starts_environment? }
+
+    context 'when environment is defined' do
+      before do
+        build.update(environment: 'review')
+      end
+
+      context 'no action is defined' do
+        it { is_expected.to be_truthy }
+      end
+
+      context 'and start action is defined' do
+        before do
+          build.update(options: { environment: { action: 'start' } } )
+        end
+
+        it { is_expected.to be_truthy }
+      end
+    end
+
+    context 'when environment is not defined' do
+      before do
+        build.update(environment: nil)
+      end
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
+  describe '#stops_environment?' do
+    subject { build.stops_environment? }
+
+    context 'when environment is defined' do
+      before do
+        build.update(environment: 'review')
+      end
+
+      context 'no action is defined' do
+        it { is_expected.to be_falsey }
+      end
+
+      context 'and stop action is defined' do
+        before do
+          build.update(options: { environment: { action: 'stop' } } )
+        end
+
+        it { is_expected.to be_truthy }
+      end
+    end
+
+    context 'when environment is not defined' do
+      before do
+        build.update(environment: nil)
+      end
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
+  describe '#last_deployment' do
+    subject { build.last_deployment }
+
+    context 'when multiple deployments are created' do
+      let!(:deployment1) { create(:deployment, deployable: build) }
+      let!(:deployment2) { create(:deployment, deployable: build) }
+
+      it 'returns the latest one' do
+        is_expected.to eq(deployment2)
+      end
+    end
+  end
+
+  describe '#outdated_deployment?' do
+    subject { build.outdated_deployment? }
+
+    context 'when build succeeded' do
+      let(:build) { create(:ci_build, :success) }
+      let!(:deployment) { create(:deployment, deployable: build) }
+
+      context 'current deployment is latest' do
+        it { is_expected.to be_falsey }
+      end
+
+      context 'current deployment is not latest on environment' do
+        let!(:deployment2) { create(:deployment, environment: deployment.environment) }
+
+        it { is_expected.to be_truthy }
+      end
+    end
+
+    context 'when build failed' do
+      let(:build) { create(:ci_build, :failed) }
+
+      it { is_expected.to be_falsey }
+    end
+  end
+
+  describe '#expanded_environment_name' do
+    subject { build.expanded_environment_name }
+
+    context 'when environment uses variables' do
+      let(:build) { create(:ci_build, ref: 'master', environment: 'review/$CI_BUILD_REF_NAME') }
+
+      it { is_expected.to eq('review/master') }
+    end
+  end
 end
diff --git a/spec/models/ci/build_spec.rb b/spec/models/ci/build_spec.rb
index a37a00f461a..a7e90c8a381 100644
--- a/spec/models/ci/build_spec.rb
+++ b/spec/models/ci/build_spec.rb
@@ -4,6 +4,12 @@ describe Ci::Build, models: true do
   let(:build) { create(:ci_build) }
   let(:test_trace) { 'This is a test' }
 
+  it { is_expected.to belong_to(:runner) }
+  it { is_expected.to belong_to(:trigger_request) }
+  it { is_expected.to belong_to(:erased_by) }
+
+  it { is_expected.to have_many(:deployments) }
+
   describe '#trace' do
     it 'obfuscates project runners token' do
       allow(build).to receive(:raw_trace).and_return("Test: #{build.project.runners_token}")
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 73cf4c9a24c..bead1a006d1 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -26,10 +26,11 @@ RSpec.configure do |config|
   config.verbose_retry = true
   config.display_try_failure_messages = true
 
-  config.include Devise::Test::ControllerHelpers,   type: :controller
+  config.include Devise::Test::ControllerHelpers, type: :controller
+  config.include Devise::Test::ControllerHelpers, type: :view
   config.include Warden::Test::Helpers, type: :request
-  config.include LoginHelpers,          type: :feature
-  config.include SearchHelpers,         type: :feature
+  config.include LoginHelpers, type: :feature
+  config.include SearchHelpers, type: :feature
   config.include StubConfiguration
   config.include EmailHelpers
   config.include TestEnv
diff --git a/spec/views/projects/builds/show.html.haml_spec.rb b/spec/views/projects/builds/show.html.haml_spec.rb
index da43622d3f9..e0c77201116 100644
--- a/spec/views/projects/builds/show.html.haml_spec.rb
+++ b/spec/views/projects/builds/show.html.haml_spec.rb
@@ -1,14 +1,12 @@
 require 'spec_helper'
 
-describe 'projects/builds/show' do
-  include Devise::Test::ControllerHelpers
-
+describe 'projects/builds/show', :view do
   let(:project) { create(:project) }
+  let(:build) { create(:ci_build, pipeline: pipeline) }
+
   let(:pipeline) do
-    create(:ci_pipeline, project: project,
-                         sha: project.commit.id)
+    create(:ci_pipeline, project: project, sha: project.commit.id)
   end
-  let(:build) { create(:ci_build, pipeline: pipeline) }
 
   before do
     assign(:build, build)
@@ -17,6 +15,129 @@ describe 'projects/builds/show' do
     allow(view).to receive(:can?).and_return(true)
   end
 
+  describe 'environment info in build view' do
+    context 'build with latest deployment' do
+      let(:build) do
+        create(:ci_build, :success, environment: 'staging')
+      end
+
+      before do
+        create(:environment, name: 'staging')
+        create(:deployment, deployable: build)
+      end
+
+      it 'shows deployment message' do
+        expected_text = 'This build is the most recent deployment'
+        render
+
+        expect(rendered).to have_css(
+          '.environment-information', text: expected_text)
+      end
+    end
+
+    context 'build with outdated deployment' do
+      let(:build) do
+        create(:ci_build, :success, environment: 'staging', pipeline: pipeline)
+      end
+
+      let(:second_build) do
+        create(:ci_build, :success, environment: 'staging', pipeline: pipeline)
+      end
+
+      let(:environment) do
+        create(:environment, name: 'staging', project: project)
+      end
+
+      let!(:first_deployment) do
+        create(:deployment, environment: environment, deployable: build)
+      end
+
+      let!(:second_deployment) do
+        create(:deployment, environment: environment, deployable: second_build)
+      end
+
+      it 'shows deployment message' do
+        expected_text = 'This build is an out-of-date deployment ' \
+          "to staging.\nView the most recent deployment ##{second_deployment.iid}."
+        render
+
+        expect(rendered).to have_css('.environment-information', text: expected_text)
+      end
+    end
+
+    context 'build failed to deploy' do
+      let(:build) do
+        create(:ci_build, :failed, environment: 'staging', pipeline: pipeline)
+      end
+
+      let!(:environment) do
+        create(:environment, name: 'staging', project: project)
+      end
+
+      it 'shows deployment message' do
+        expected_text = 'The deployment of this build to staging did not succeed.'
+        render
+
+        expect(rendered).to have_css(
+          '.environment-information', text: expected_text)
+      end
+    end
+
+    context 'build will deploy' do
+      let(:build) do
+        create(:ci_build, :running, environment: 'staging', pipeline: pipeline)
+      end
+
+      let!(:environment) do
+        create(:environment, name: 'staging', project: project)
+      end
+
+      it 'shows deployment message' do
+        expected_text = 'This build is creating a deployment to staging'
+        render
+
+        expect(rendered).to have_css(
+          '.environment-information', text: expected_text)
+      end
+    end
+
+    context 'build that failed to deploy and environment has not been created' do
+      let(:build) do
+        create(:ci_build, :failed, environment: 'staging', pipeline: pipeline)
+      end
+
+      let!(:environment) do
+        create(:environment, name: 'staging', project: project)
+      end
+
+      it 'shows deployment message' do
+        expected_text = 'The deployment of this build to staging did not succeed'
+        render
+
+        expect(rendered).to have_css(
+          '.environment-information', text: expected_text)
+      end
+    end
+
+    context 'build that will deploy and environment has not been created' do
+      let(:build) do
+        create(:ci_build, :running, environment: 'staging', pipeline: pipeline)
+      end
+
+      let!(:environment) do
+        create(:environment, name: 'staging', project: project)
+      end
+
+      it 'shows deployment message' do
+        expected_text = 'This build is creating a deployment to staging'
+        render
+
+        expect(rendered).to have_css(
+          '.environment-information', text: expected_text)
+      end
+    end
+  end
+
   context 'when build is running' do
     before do
       build.run!