Urvashi Reddy | Software Engineer, Engineering Productivity Team Adam Berry | Tech Lead, Engineering Productivity Team Rui Li | Software Engineer, Engineering Productivity Team The Engineering Productivity team at Pinterest came across a small change that had a large impact in reducing build times across pipelines. We found that setting the refspec option during git fetch reduced our cloning step
![How a one line change decreased our build times by 99%](https://cdn-ak-scissors.b.st-hatena.com/image/square/0a1533af534b44b538171b54651afd8ef360a9ec/height=288;version=1;width=512/https%3A%2F%2Fmiro.medium.com%2Fv2%2Fresize%3Afit%3A1200%2F1%2A-_Iv_H2-DiHp6ncVoQzhqw.png)