From 54bb34e14fa996ca2db543a7a62e1225ffe6c0f2 Mon Sep 17 00:00:00 2001
From: William Storey <will@summercat.com>
Date: Mon, 26 Jan 2026 20:42:05 -0800
Subject: [PATCH] Add muon fmt GitHub Actions workflow

---
 .github/workflows/muon-fmt.yml | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 .github/workflows/muon-fmt.yml

diff --git a/.github/workflows/muon-fmt.yml b/.github/workflows/muon-fmt.yml
new file mode 100644
index 00000000..6fa06d38
--- /dev/null
+++ b/.github/workflows/muon-fmt.yml
@@ -0,0 +1,32 @@
+name: Format meson files
+
+on:
+  push:
+  pull_request:
+
+permissions: {}
+
+jobs:
+  muon-meson-fmt:
+    name: Format
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@main
+        with:
+          persist-credentials: false
+
+      # Build from source because Ubuntu 24.04 apt only has muon 0.2.0.
+      # Newer muons seem to format differently.
+      - name: Build muon from source
+        run: |
+          git clone --depth 1 --branch 0.5.0 https://github.com/muon-build/muon /tmp/muon
+          cd /tmp/muon
+          ./bootstrap.sh build
+          build/muon-bootstrap setup build
+          build/muon-bootstrap -C build samu
+          sudo build/muon -C build install
+
+      - name: Run muon fmt
+        run: |
+          find . -name meson.build -print0 | xargs -0 muon fmt -c .muon_fmt.ini -i
+          git diff --exit-code