release.rb in gonative-cli-0.4.4

- old
+ new

@@ -28,12 +28,12 @@
 
           def assert_not_pushed!
             version = spec.version
             name = spec.name
   
-            pushed_versions = source.versions(name).collect(&:to_s)
+            pushed_versions = source.versions(name)&.collect(&:to_s)
   
-            raise Error, "#{name} (#{version}) has already been pushed to #{source.name}" if pushed_versions.include? version.to_s
+            raise Error, "#{name} (#{version}) has already been pushed to #{source.name}" if pushed_versions&.include? version.to_s
           end
 
           def create_and_push_tag!
             unless system("git tag | grep #{spec.version} > /dev/null")
               system "git add -A && git commit -m \"Releases #{spec.version}.\""