transferred Code Ocean from original repository to GitHub

app/policies/execution_environment_policy.rb

@@ -0,0 +1,10 @@
+class ExecutionEnvironmentPolicy < AdminOrAuthorPolicy
+  def author?
+    @user == @record.author
+  end
+  private :author?
+
+  [:execute_command?, :shell?].each do |action|
+    define_method(action) { admin? || author? }
+  end
+end