1 files changed, 50 insertions, 0 deletions
diff --git a/lib/gitlab/slash_commands/deploy.rb b/lib/gitlab/slash_commands/deploy.rb
new file mode 100644
index 00000000000..e71eb15d604
--- /dev/null
+++ b/lib/gitlab/slash_commands/deploy.rb
@@ -0,0 +1,50 @@
+module Gitlab
+  module SlashCommands
+    class Deploy < BaseCommand
+      def self.match(text)
+        /\Adeploy\s+(?<from>\S+.*)\s+to+\s+(?<to>\S+.*)\z/.match(text)
+      end
+
+      def self.help_message
+        'deploy <environment> to <target-environment>'
+      end
+
+      def self.available?(project)
+        project.builds_enabled?
+      end
+
+      def self.allowed?(project, user)
+        can?(user, :create_deployment, project)
+      end
+
+      def execute(match)
+        from = match[:from]
+        to = match[:to]
+
+        actions = find_actions(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)
+        else
+          Gitlab::SlashCommands::Presenters::Deploy.new(actions).too_many_actions
+        end
+      end
+
+      private
+
+      def play!(from, to, action)
+        action.play(current_user)
+      end
+
+      def find_actions(from, to)
+        environment = project.environments.find_by(name: from)
+        return [] unless environment
+
+        environment.actions_for(to).select(&:starts_environment?)
+      end
+    end
+  end
+end