Add CI

.github/workflows/ocaml.yml

@@ -0,0 +1,42 @@
+name: Rust tests
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  run:
+    name: Build
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 30
+    strategy:
+      fail-fast: true
+      matrix:
+        os: [macos-latest, ubuntu-latest]
+        ocaml-compiler:
+          [
+            "4.14.1",
+          ]
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: OCaml/Opam cache
+        id: ocaml-rs-opam-cache
+        uses: actions/cache@v4
+        with:
+          path: "~/.opam"
+          key: ocaml-rs-opam-${{ matrix.ocaml-compiler }}-${{ matrix.os }}
+
+      - name: Use OCaml ${{ matrix.ocaml-compiler }}
+        uses: ocaml/setup-ocaml@v2
+        with:
+          ocaml-compiler: ${{ matrix.ocaml-compiler }}
+
+      - run: opam install . --deps-only --with-test
+      - run: opam exec -- dune build
+      - run: opam exec -- dune runtest