From 5bc353ae048d49e563616a1485f9aed1ba5a8a63 Mon Sep 17 00:00:00 2001
From: Antoine Pouille <m.pouille.antoine+github@gmail.com>
Date: Wed, 25 Sep 2024 17:00:00 +0200
Subject: [PATCH] Add ocamlformat to CI

---
 .github/workflows/ci.yml | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e8fcc0b65..8835aad07 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,25 @@
 name: ci
 on: [push]
 jobs:
+  lint-ocamlformat:
+    runs-on: ubuntu-22.04
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup OCaml
+        uses: ocaml/setup-ocaml@v2
+        with:
+          ocaml-compiler: 4.14.x
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          opam depext --install --yes dune
+          opam install --yes ocamlformat=0.26.2
+      - name: Run format check
+        run: |
+          # needs `opam exec --` as `dune` is not in the shell PATH
+          opam exec -- dune fmt --preview
+
   install-ubuntu:
     runs-on: ubuntu-22.04
     strategy: