From 884840e3a30da24067825f97d3003d4c677b854e Mon Sep 17 00:00:00 2001
From: Andrew Armbruster <AndrewADev@gmail.com>
Date: Sun, 1 Oct 2023 12:12:24 +0200
Subject: [PATCH] Use concurrency groups to limit duplicate jobs

Leverage concurrency groups along with cancel-in-progress to favor running the most recent job.

Concurrency groups are on a per workflow, per branch/tag basis. So, pushing newer updates to a branch, e.g. as part of a PR, should cancel any in progress runs of workflows that have been retriggered.

See:
- https://docs.github.com/en/enterprise-cloud@latest/actions/using-workflows/workflow-syntax-for-github-actions#concurrency
- https://docs.github.com/en/enterprise-cloud@latest/actions/learn-github-actions/contexts#github-context
---
 .github/workflows/checks.yml        | 4 ++++
 .github/workflows/publish.yml       | 4 ++++
 .github/workflows/tests-macos.yml   | 4 ++++
 .github/workflows/tests-ubuntu.yml  | 4 ++++
 .github/workflows/tests-windows.yml | 4 ++++
 5 files changed, 20 insertions(+)

diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index ee0cb4b1e..afa713032 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -1,6 +1,10 @@
 name: Checks
 on: [push, pull_request]
 
+concurrency:
+  group: ${{github.workflow}}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   checks:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 22b8996b6..ec4d8fb32 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -4,6 +4,10 @@ on:
     tags:
       - '[0-9]+.[0-9]+.[0-9]+'
 
+concurrency:
+  group: ${{github.workflow}}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   publish:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/tests-macos.yml b/.github/workflows/tests-macos.yml
index 3044a1af3..47392ff88 100644
--- a/.github/workflows/tests-macos.yml
+++ b/.github/workflows/tests-macos.yml
@@ -1,6 +1,10 @@
 name: macOS
 on: [push, pull_request]
 
+concurrency:
+  group: ${{github.workflow}}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   tests:
     runs-on: macos-11
diff --git a/.github/workflows/tests-ubuntu.yml b/.github/workflows/tests-ubuntu.yml
index 5ff92a571..84e2fdc36 100644
--- a/.github/workflows/tests-ubuntu.yml
+++ b/.github/workflows/tests-ubuntu.yml
@@ -1,6 +1,10 @@
 name: Ubuntu
 on: [push, pull_request]
 
+concurrency:
+  group: ${{github.workflow}}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   tests:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/tests-windows.yml b/.github/workflows/tests-windows.yml
index c8d1928d7..9949dbae8 100644
--- a/.github/workflows/tests-windows.yml
+++ b/.github/workflows/tests-windows.yml
@@ -1,6 +1,10 @@
 name: Windows
 on: [push, pull_request]
 
+concurrency:
+  group: ${{github.workflow}}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   tests:
     runs-on: windows-latest