refactoring; use nearest-ancestors in docker-tar-pipe-runner
refactoring; use nearest-ancestors in docker-tar-pipe-runner

byran/cyber-dojo-web,byran/cyber-dojo-web,byran/cyber-dojo-web,byran/cyber-dojo-web,cyber-dojo/web,byran/cyber-dojo-web,byran/cyber-dojo-web,byran/cyber-dojo-web,byran/cyber-dojo-web,cyber-dojo/web,cyber-dojo/web,cyber-dojo/web,byran/cyber-dojo-web