Merge branch 'fix-retries-on-manual-actions' into 'master'

Fix two small problems on how we handle manual actions

## What does this MR do?
Fixes two small problems in how we handle manual actions:
- On environments page we show a `Play` for the same action that is lately deployed, we should show other actions only
- When we process a pipeline that have only a manual action in a stage, the pipeline will stop being processed.

- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)


See merge request !5366

app/models/ci/build.rb

@@ -97,7 +97,7 @@ module Ci
     end
 
     def other_actions
-      pipeline.manual_actions.where.not(id: self)
+      pipeline.manual_actions.where.not(name: name)
     end
 
     def playable?

app/models/ci/pipeline.rb

@@ -217,8 +217,9 @@ module Ci
       # build builds only for the first stage that has builds available.
       #
       stages.any? do |stage|
-        CreateBuildsService.new(self)
-          .execute(stage, user, status, trigger_request).present?
+        CreateBuildsService.new(self).
+          execute(stage, user, status, trigger_request).
+          any?(&:active?)
       end
     end
 

spec/models/build_spec.rb

@@ -811,6 +811,22 @@ describe Ci::Build, models: true do
     it 'returns other actions' do
       is_expected.to contain_exactly(other_build)
     end
+
+    context 'when build is retried' do
+      let!(:new_build) { Ci::Build.retry(build) }
+
+      it 'does not return any of them' do
+        is_expected.not_to include(build, new_build)
+      end
+    end
+
+    context 'when other build is retried' do
+      let!(:retried_build) { Ci::Build.retry(other_build) }
+
+      it 'returns a retried build' do
+        is_expected.to contain_exactly(retried_build)
+      end
+    end
   end
 
   describe '#play' do

spec/models/ci/pipeline_spec.rb

@@ -264,7 +264,7 @@ describe Ci::Pipeline, models: true do
       context 'when listing manual actions' do
         let(:yaml) do
           {
-            stages: ["build", "test", "test_failure", "deploy", "cleanup"],
+            stages: ["build", "test", "staging", "production", "cleanup"],
             build: {
               stage: "build",
               script: "BUILD",
@@ -273,17 +273,12 @@ describe Ci::Pipeline, models: true do
               stage: "test",
               script: "TEST",
             },
-            test_failure: {
-              stage: "test_failure",
-              script: "ON test failure",
-              when: "on_failure",
-            },
-            deploy: {
-              stage: "deploy",
+            staging: {
+              stage: "staging",
               script: "PUBLISH",
             },
             production: {
-              stage: "deploy",
+              stage: "production",
               script: "PUBLISH",
               when: "manual",
             },
@@ -311,11 +306,18 @@ describe Ci::Pipeline, models: true do
 
           # succeed stage test
           pipeline.builds.running_or_pending.each(&:success)
-          expect(manual_actions).to be_one # production
+          expect(manual_actions).to be_empty
 
-          # succeed stage deploy
+          # succeed stage staging and skip stage production
           pipeline.builds.running_or_pending.each(&:success)
           expect(manual_actions).to be_many # production and clear cache
+
+          # succeed stage cleanup
+          pipeline.builds.running_or_pending.each(&:success)
+
+          # after processing a pipeline we should have 6 builds, 5 succeeded
+          expect(pipeline.builds.count).to eq(6)
+          expect(pipeline.builds.success.count).to eq(4)
         end
 
         def manual_actions