From 76514178b6ea781fc0fdd68f57c6ac6ff0d0ab64 Mon Sep 17 00:00:00 2001
From: link2xt <link2xt@testrun.org>
Date: Thu, 23 Feb 2023 18:45:55 +0000
Subject: [PATCH] ci: do not run CI multiple times on the same branch

Especially for PRs, if the branch is updated
multiple times, only the last commit should be tested.
---
 .github/workflows/ci.yml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 449161d7f..fe1c4f8cc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,5 +1,11 @@
 name: Rust CI
 
+# Cancel previously started workflow runs
+# when the branch is updated.
+concurrency:
+  group: ${{ github.ref }}
+  cancel-in-progress: true
+
 on:
   pull_request:
   push: