From 5502051444df718215e3673addca2328e46e500b Mon Sep 17 00:00:00 2001
From: Stefan Krastanov <stefan@krastanov.org>
Date: Sat, 23 Nov 2024 23:50:59 -0500
Subject: [PATCH] CI autocancel (#169)

---
 .github/workflows/ci-julia-nightly.yml |  8 ++++++++
 .github/workflows/ci.yml               | 13 +++++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/ci-julia-nightly.yml b/.github/workflows/ci-julia-nightly.yml
index 94e3854..d018ed3 100644
--- a/.github/workflows/ci-julia-nightly.yml
+++ b/.github/workflows/ci-julia-nightly.yml
@@ -4,6 +4,14 @@ on:
     branches: [master, main]
     tags: ["*"]
   pull_request:
+
+concurrency:
+  # group by workflow and ref; the last slightly strange component ensures that for pull
+  # requests, we limit to 1 concurrent job, but for the master branch we don't
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ (github.ref != 'refs/heads/master' && github.ref != 'refs/heads/main') || github.run_number }}
+  # Cancel intermediate builds, but only if it is a pull request build.
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
 env:
   PYTHON: ~
 jobs:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6bbbb6f..b86fd97 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -4,6 +4,14 @@ on:
     branches: [master, main]
     tags: ["*"]
   pull_request:
+
+concurrency:
+  # group by workflow and ref; the last slightly strange component ensures that for pull
+  # requests, we limit to 1 concurrent job, but for the master branch we don't
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ (github.ref != 'refs/heads/master' && github.ref != 'refs/heads/main') || github.run_number }}
+  # Cancel intermediate builds, but only if it is a pull request build.
+  cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}
+
 env:
   PYTHON: ~
 jobs:
@@ -19,7 +27,8 @@ jobs:
         os:
           - ubuntu-latest
         threads:
-          - '2'
+          - '1'
+          - '5'
         arch:
           - x64
         include:
@@ -34,7 +43,7 @@ jobs:
           - arch: x64
             os: windows-latest
             version: '1'
-            threads: '1'  
+            threads: '1'
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1