From 6ad8d7cdfc5bf1391c50fee285c5787f21e5221a Mon Sep 17 00:00:00 2001
From: Robert Jackson <rjackson@linkedin.com>
Date: Mon, 13 Dec 2021 14:58:17 -0500
Subject: [PATCH] Cancel stale workflows when starting a new one.

With this change, we will cancel any pending and in-progress CI jobs
when a new one is pushed. This will help a bit with the CI queue by
preventing tons and tons of queued up CI jobs when pushing new commits
to a pull request.
---
 .github/workflows/ci.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7cbbfa83fc..b1874bc66d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,6 +14,10 @@ on:
   schedule:
     - cron:  '0 3 * * *' # daily, at 3am
 
+concurrency:
+   group: ci-${{ github.head_ref || github.ref }}
+   cancel-in-progress: true
+
 jobs:
   linting:
     name: Linting