From a25e24ed8c386a4a779dcf6bf91d21d2058ed062 Mon Sep 17 00:00:00 2001
From: Simon Cruanes <simon.cruanes.2007@m4x.org>
Date: Mon, 9 Feb 2026 22:38:21 -0500
Subject: [PATCH] CI: check format

---
 .github/workflows/format.yml | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 .github/workflows/format.yml

diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
new file mode 100644
index 00000000..647e1256
--- /dev/null
+++ b/.github/workflows/format.yml
@@ -0,0 +1,27 @@
+name: format
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+  format:
+    name: format
+    strategy:
+      matrix:
+        ocaml-compiler:
+            - '5.3'
+    runs-on: 'ubuntu-latest'
+    steps:
+      - uses: actions/checkout@main
+      - name: Use OCaml ${{ matrix.ocaml-compiler }}
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: ${{ matrix.ocaml-compiler }}
+          dune-cache: true
+          allow-prerelease-opam: true
+
+      - run: opam install ocamlformat.0.27.0
+      - run: opam exec -- make format-check
+