From 68afb7be05f2560cac95d10827b96902fd328472 Mon Sep 17 00:00:00 2001
From: John Omotani <john.omotani@ukaea.uk>
Date: Fri, 16 Jul 2021 14:51:15 +0100
Subject: [PATCH 1/2] Cancel previous CI runs on new push to branch

---
 .github/workflows/test.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 055f8b5..f205382 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,6 +10,10 @@ on:
     # https://crontab.guru/#0_0_1_*_*
     - cron: "0 0 1 * *"
 
+concurrency:
+  group: ${{ github.workflow}}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   # As we are running on different environments, we are splitting the jobs
   # https://docs.github.com/en/free-pro-team@latest/actions/reference/workflow-syntax-for-github-actions#jobs

From f42d578d54207117d59d612353728de0fd8f6bb4 Mon Sep 17 00:00:00 2001
From: johnomotani <john.omotani@ukaea.uk>
Date: Wed, 28 Jul 2021 18:32:09 +0100
Subject: [PATCH 2/2] Cancel all old workflows from first new workflow

Remove specific `${{ github.workflow }}` in the 'concurrency' group, so that any job starting on a branch will cancel all old jobs. Useful for when the CI is busy, so it may take some time for all jobs to start. A `${{ github.workflow }}` probably should be added if we have a documentation-building CI in future, which we might want to trigger on its own while tests still run on a previous commit.
---
 .github/workflows/test.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f205382..31ac7d9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,7 +11,7 @@ on:
     - cron: "0 0 1 * *"
 
 concurrency:
-  group: ${{ github.workflow}}-${{ github.ref }}
+  group: ${{ github.ref }}
   cancel-in-progress: true
 
 jobs: