Add ring-ci.yml (attempt 1)

.github/workflows/ring-ci.yml

@@ -0,0 +1,59 @@
+name: Build, test, lint
+on:
+  - push
+  - pull_request
+
+jobs:
+  build-and-test:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        ocaml-compiler:
+          - "5.1"
+          - "5.2"
+    runs-on: ${{matrix.os}}
+    steps:
+      - name: Checkout tree
+        uses: actions/checkout@v4
+
+      - name: Set-up OCaml
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: ${{ matrix.ocaml-compiler }}
+      - run: opam install . --deps-only --with-test
+      - run: opam exec -- dune build
+      - run: opam exec -- dune runtest
+
+      - name: Upload the build artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.os }}-${{ matrix.ocaml-compiler }}-ring.exe
+          path: _build/default/bin/ring.exe
+
+  lint-doc:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout tree
+        uses: actions/checkout@v4
+
+      - name: Set-up OCaml
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: "5.1"
+
+      - uses: ocaml/setup-ocaml/lint-doc@v3
+
+  lint-fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout tree
+        uses: actions/checkout@v4
+
+      - name: Set-up OCaml
+        uses: ocaml/setup-ocaml@v3
+        with:
+          ocaml-compiler: "5.1"
+
+      - uses: ocaml/setup-ocaml/lint-fmt@v3