Show deployment status on a MR view

CHANGELOG

@@ -37,6 +37,7 @@ v 8.11.0 (unreleased)
   - Update `timeago` plugin to use multiple string/locale settings
   - Remove unused images (ClemMakesApps)
   - Limit git rev-list output count to one in forced push check
+  - Show deployment status on merge requests
   - Clean up unused routes (Josef Strzibny)
   - Fix issue on empty project to allow developers to only push to protected branches if given permission
   - Add green outline to New Branch button. !5447 (winniehell)

app/models/deployment.rb

@@ -36,4 +36,11 @@ class Deployment < ActiveRecord::Base
   def manual_actions
     deployable.try(:other_actions)
   end
+
+  def deployed_to(ref)
+    commit = project.commit(ref)
+    return false unless commit
+
+    project.repository.merge_base(commit.id, sha) == commit.id
+  end
 end

app/models/environment.rb

@@ -25,4 +25,10 @@ class Environment < ActiveRecord::Base
   def nullify_external_url
     self.external_url = nil if self.external_url.blank?
   end
+
+  def deployed_to?(ref)
+    return unless last_deployment
+
+    last_deployment.deployed_to(ref)
+  end
 end

app/models/merge_request.rb

@@ -590,6 +590,12 @@ class MergeRequest < ActiveRecord::Base
     !pipeline || pipeline.success?
   end
 
+  def environments
+    target_project.environments.select do |environment|
+      environment.deployed_to?(ref_path)
+    end
+  end
+
   def state_human_name
     if merged?
       "Merged"

app/views/projects/merge_requests/widget/_heading.html.haml

 - if @pipeline
   .mr-widget-heading
-    - %w[success success_with_warnings skipped canceled failed running pending].each do |status|
-      .ci_widget{ class: "ci-#{status}", style: ("display:none" unless @pipeline.status == status) }
-        = ci_icon_for_status(status)
-        %span
-          CI build
-          = ci_label_for_status(status)
-        for
-        - commit = @merge_request.diff_head_commit
-        = succeed "." do
-          = link_to @pipeline.short_sha, namespace_project_commit_path(@merge_request.source_project.namespace, @merge_request.source_project, @pipeline.sha), class: "monospace"
-        %span.ci-coverage
-        = link_to "View details", builds_namespace_project_merge_request_path(@project.namespace, @project, @merge_request), class: "js-show-tab", data: {action: 'builds'}
+    - @merge_request.environments.each do |environments|
+      - %w[success success_with_warnings skipped canceled failed running pending].each do |status|
+        .ci_widget{ class: "ci-#{status}", style: ("display:none" unless @pipeline.status == status) }
+          = ci_icon_for_status(status)
+          %span
+            CI build
+            = ci_label_for_status(status)
+          for
+          - commit = @merge_request.diff_head_commit
+          = succeed "." do
+            = link_to @pipeline.short_sha, namespace_project_commit_path(@merge_request.source_project.namespace, @merge_request.source_project, @pipeline.sha), class: "monospace"
+          %span.ci-coverage
+          = link_to "View details", builds_namespace_project_merge_request_path(@project.namespace, @project, @merge_request), class: "js-show-tab", data: {action: 'builds'}
 
 - elsif @merge_request.has_ci?
-  - # Compatibility with old CI integrations (ex jenkins) when you request status from CI server via AJAX
-  - # Remove in later versions when services like Jenkins will set CI status via Commit status API
+  // Compatibility with old CI integrations (ex jenkins) when you request status from CI server via AJAX
+  // Remove in later versions when services like Jenkins will set CI status via Commit status API
   .mr-widget-heading
     - %w[success skipped canceled failed running pending].each do |status|
       .ci_widget{class: "ci-#{status}", style: "display:none"}
@@ -42,3 +43,14 @@
     .ci_widget.ci-error{style: "display:none"}
       = icon("times-circle")
       Could not connect to the CI server. Please check your settings and try again.
+
+- @merge_request.environments.each do |environment|
+  .mr-widget-heading
+    .ci_widget{ class: "ci-success" }
+      = ci_icon_for_status("success")
+      %span
+        Released to #{environment.name}
+        = succeed '.' do
+          = time_ago_with_tooltip(environment.created_at, placement: 'bottom')
+        - if environment.external_url
+          = link_to icon('external-link'), environment.external_url