From f66d4ce846285e67fc3dcb82bc9a8ce73d3ead0f Mon Sep 17 00:00:00 2001
From: BREW <81044362+b-re-w@users.noreply.github.com>
Date: Sat, 3 Oct 2026 20:40:51 +0900
Subject: [PATCH] CI: Cancel superseded runs per workflow and ref (#129)

---
 .github/workflows/android-native.yml | 5 +++++
 .github/workflows/desktop.yml        | 5 +++++
 .github/workflows/ios.yml            | 5 +++++
 .github/workflows/typedpython.yml    | 5 +++++
 .github/workflows/wasm.yml           | 5 +++++
 5 files changed, 25 insertions(+)

diff --git a/.github/workflows/android-native.yml b/.github/workflows/android-native.yml
index d01fbb773..6ff4ff985 100644
--- a/.github/workflows/android-native.yml
+++ b/.github/workflows/android-native.yml
@@ -6,6 +6,11 @@ on:
   pull_request:
     branches: [ "develop", "main" ]
 
+concurrency:
+  # A newer push to the same ref supersedes this run; frees the shared macOS runners.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   compile:
     name: Compile Android Native
diff --git a/.github/workflows/desktop.yml b/.github/workflows/desktop.yml
index f6a28ab58..67c9c2c7f 100644
--- a/.github/workflows/desktop.yml
+++ b/.github/workflows/desktop.yml
@@ -6,6 +6,11 @@ on:
   pull_request:
     branches: [ "develop", "main" ]
 
+concurrency:
+  # A newer push to the same ref supersedes this run; frees the shared macOS runners.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     name: Desktop Tests
diff --git a/.github/workflows/ios.yml b/.github/workflows/ios.yml
index 74a188a31..0bd46c48c 100644
--- a/.github/workflows/ios.yml
+++ b/.github/workflows/ios.yml
@@ -6,6 +6,11 @@ on:
   pull_request:
     branches: [ "develop", "main" ]
 
+concurrency:
+  # A newer push to the same ref supersedes this run; frees the shared macOS runners.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   compile:
     name: Compile iOS Simulator Arm64
diff --git a/.github/workflows/typedpython.yml b/.github/workflows/typedpython.yml
index 444ebcd43..c03f0ea4d 100644
--- a/.github/workflows/typedpython.yml
+++ b/.github/workflows/typedpython.yml
@@ -10,6 +10,11 @@ on:
     branches: [ "develop", "main" ]
     paths: [ "python-multiplatform-ksp/**", "ksp-fixtures/app/**", ".github/workflows/typedpython.yml" ]
 
+concurrency:
+  # A newer push to the same ref supersedes this run; frees the shared macOS runners.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     name: TypedPython tests (${{ matrix.os }})
diff --git a/.github/workflows/wasm.yml b/.github/workflows/wasm.yml
index c7ece1461..a800e5dcd 100644
--- a/.github/workflows/wasm.yml
+++ b/.github/workflows/wasm.yml
@@ -18,6 +18,11 @@ on:
   pull_request:
     branches: [ "develop", "main" ]
 
+concurrency:
+  # A newer push to the same ref supersedes this run; frees the shared macOS runners.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   compile:
     name: WasmJS compile (no interpreter)