Improve deploy environment chatops slash command

lib/gitlab/slash_commands/deploy.rb

@@ -21,29 +21,34 @@ module Gitlab
         from = match[:from]
         to = match[:to]
 
-        actions = find_actions(from, to)
+        action = find_action(from, to)
 
-        if actions.none?
-          Gitlab::SlashCommands::Presenters::Deploy.new(nil).no_actions
-        elsif actions.one?
-          action = play!(from, to, actions.first)
-          Gitlab::SlashCommands::Presenters::Deploy.new(action).present(from, to)
+        if action.nil?
+          Gitlab::SlashCommands::Presenters::Deploy
+            .new(action).action_not_found
         else
-          Gitlab::SlashCommands::Presenters::Deploy.new(actions).too_many_actions
+          deployment = action.play(current_user)
+
+          Gitlab::SlashCommands::Presenters::Deploy
+            .new(deployment).present(from, to)
         end
       end
 
       private
 
-      def play!(from, to, action)
-        action.play(current_user)
-      end
-
-      def find_actions(from, to)
+      def find_action(from, to)
         environment = project.environments.find_by(name: from)
-        return [] unless environment
+        return unless environment
 
-        environment.actions_for(to).select(&:starts_environment?)
+        actions = environment.actions_for(to).select do |action|
+          action.starts_environment?
+        end
+
+        if actions.many?
+          actions.find { |action| action.name == to.to_s }
+        else
+          actions.first
+        end
       end
     end
   end

lib/gitlab/slash_commands/presenters/deploy.rb

@@ -3,17 +3,14 @@ module Gitlab
     module Presenters
       class Deploy < Presenters::Base
         def present(from, to)
-          message = "Deployment started from #{from} to #{to}. [Follow its progress](#{resource_url})."
+          message = "Deployment started from #{from} to #{to}. " \
+                    "[Follow its progress](#{resource_url})."
 
           in_channel_response(text: message)
         end
 
-        def no_actions
-          ephemeral_response(text: "No action found to be executed")
-        end
-
-        def too_many_actions
-          ephemeral_response(text: "Too many actions defined")
+        def action_not_found
+          ephemeral_response(text: "Couldn't find a deployment action.")
         end
       end
     end

spec/lib/gitlab/slash_commands/deploy_spec.rb

@@ -22,7 +22,7 @@ describe Gitlab::SlashCommands::Deploy do
     context 'if no environment is defined' do
       it 'does not execute an action' do
         expect(subject[:response_type]).to be(:ephemeral)
-        expect(subject[:text]).to eq("No action found to be executed")
+        expect(subject[:text]).to eq "Couldn't find a deployment action."
       end
     end
 
@@ -35,12 +35,12 @@ describe Gitlab::SlashCommands::Deploy do
       context 'without actions' do
         it 'does not execute an action' do
           expect(subject[:response_type]).to be(:ephemeral)
-          expect(subject[:text]).to eq("No action found to be executed")
+          expect(subject[:text]).to eq "Couldn't find a deployment action."
         end
       end
 
-      context 'with action' do
-        let!(:manual1) do
+      context 'when single action has been matched' do
+        before do
           create(:ci_build, :manual, pipeline: pipeline,
                                      name: 'first',
                                      environment: 'production')
@@ -48,31 +48,61 @@ describe Gitlab::SlashCommands::Deploy do
 
         it 'returns success result' do
           expect(subject[:response_type]).to be(:in_channel)
-          expect(subject[:text]).to start_with('Deployment started from staging to production')
+          expect(subject[:text])
+            .to start_with('Deployment started from staging to production')
         end
+      end
+
+      context 'when more than one action has been matched' do
+        context 'when there is no specific actions with a environment name' do
+          before do
+            create(:ci_build, :manual, pipeline: pipeline,
+                                       name: 'first',
+                                       environment: 'production')
 
-        context 'when duplicate action exists' do
-          let!(:manual2) do
             create(:ci_build, :manual, pipeline: pipeline,
                                        name: 'second',
                                        environment: 'production')
           end
 
-          it 'returns error' do
+          it 'returns error about too many actions defined' do
+            expect(subject[:text]).to eq("Couldn't find a deployment action.")
             expect(subject[:response_type]).to be(:ephemeral)
-            expect(subject[:text]).to eq('Too many actions defined')
           end
         end
 
-        context 'when teardown action exists' do
-          let!(:teardown) do
+        context 'when one of the actions is environement specific action' do
+          before do
+            create(:ci_build, :manual, pipeline: pipeline,
+                                       name: 'first',
+                                       environment: 'production')
+
+            create(:ci_build, :manual, pipeline: pipeline,
+                                       name: 'production',
+                                       environment: 'production')
+          end
+
+          it 'deploys to production' do
+            expect(subject[:text])
+              .to start_with('Deployment started from staging to production')
+            expect(subject[:response_type]).to be(:in_channel)
+          end
+        end
+
+        context 'when one of the actions is a teardown action' do
+          before do
+            create(:ci_build, :manual, pipeline: pipeline,
+                                       name: 'first',
+                                       environment: 'production')
+
             create(:ci_build, :manual, :teardown_environment,
                    pipeline: pipeline, name: 'teardown', environment: 'production')
           end
 
-          it 'returns the success message' do
+          it 'deploys to production' do
+            expect(subject[:text])
+              .to start_with('Deployment started from staging to production')
             expect(subject[:response_type]).to be(:in_channel)
-            expect(subject[:text]).to start_with('Deployment started from staging to production')
           end
         end
       end

spec/lib/gitlab/slash_commands/presenters/deploy_spec.rb

@@ -17,8 +17,8 @@ describe Gitlab::SlashCommands::Presenters::Deploy do
     end
   end
 
-  describe '#no_actions' do
-    subject { described_class.new(nil).no_actions }
+  describe '#action_not_found' do
+    subject { described_class.new(nil).action_not_found }
 
     it { is_expected.to have_key(:text) }
     it { is_expected.to have_key(:response_type) }
@@ -27,21 +27,7 @@ describe Gitlab::SlashCommands::Presenters::Deploy do
 
     it 'tells the user there is no action' do
       expect(subject[:response_type]).to be(:ephemeral)
-      expect(subject[:text]).to eq("No action found to be executed")
-    end
-  end
-
-  describe '#too_many_actions' do
-    subject { described_class.new([]).too_many_actions }
-
-    it { is_expected.to have_key(:text) }
-    it { is_expected.to have_key(:response_type) }
-    it { is_expected.to have_key(:status) }
-    it { is_expected.not_to have_key(:attachments) }
-
-    it 'tells the user there is no action' do
-      expect(subject[:response_type]).to be(:ephemeral)
-      expect(subject[:text]).to eq("Too many actions defined")
+      expect(subject[:text]).to eq "Couldn't find a deployment action."
     end
   end
 end