Prepare for GH release with static binary

Signed-off-by: Paul-Elliot <peada@free.fr>

.github/workflows/build.yaml

@@ -0,0 +1,140 @@
+name: CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  linux-build:
+    strategy:
+      matrix:
+        platform:
+          - { name: "linux/amd64", filename_suffix: "linux-amd64", target_arch: "x86_64" }
+          - { name: "linux/arm64", filename_suffix: "linux-arm64", target_arch: "arm64" }
+        runAllTests:
+          - ${{ startsWith(github.ref, 'refs/tags/') }}
+        # exclude:
+        #   - platform: { name: "linux/arm64", filename_suffix: "linux-arm64", target_arch: "arm64"  }
+        #     runAllTests: false
+      fail-fast: false
+    runs-on: ubuntu-latest
+
+    env:
+      SLIPSHOW_PLATFORM: ${{ matrix.platform.name }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0 # Needed to fetch tags
+
+      # The latest tag is needed to build the release tarball but
+      # actions/checkout fails to fetch it properly.
+      # https://github.com/actions/checkout/issues/882
+      - name: Fetch tags
+        run: git fetch --tags --force origin
+
+      - name: Set up QEMU
+        id: qemu
+        uses: docker/setup-qemu-action@v1
+        with:
+          image: tonistiigi/binfmt:latest
+          platforms: all
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+        with:
+          driver: docker
+
+      - name: Check images
+        run: docker image ls
+
+      - name: Build release tarball
+        # if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          mkdir -p new_release; chmod a+rw new_release;
+          docker buildx build --platform ${{ matrix.platform.name }} --load \
+            -f release/Dockerfile \
+            -t slipshow-release-${{ matrix.platform.name }} .
+          docker run --platform ${{ matrix.platform.name }} -v $PWD/new_release:/release \
+            -e VERSION=$GITHUB_REF_NAME \
+            -e TARGETOS=linux \
+            -e TARGETARCH=${{ matrix.platform.target_arch }} \
+            -e OUTPUT=/release \
+            slipshow-release-${{ matrix.platform.name }} \
+            opam exec -- bash release/release.sh
+
+      - name: upload archives
+        # if: startsWith(github.ref, 'refs/tags/')
+        uses: actions/upload-artifact@v3
+        with:
+          name: archives
+          path: new_release/*
+
+  mac-build:
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - macos-latest
+        ocaml-compiler:
+          - 4.14.x
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      # See the same step in the linux build
+      - name: Fetch tags
+        run: git fetch --tags --force origin
+
+      - name: Use OCaml ${{ matrix.ocaml-compiler }}
+        uses: ocaml/setup-ocaml@v2
+        with:
+          ocaml-compiler: ${{ matrix.ocaml-compiler }}
+          dune-cache: ${{ matrix.os != 'macos-latest' }}
+
+      - name: Install dependencies
+        run: opam install --deps-only --with-test --with-doc -y .
+
+      - name: Build release tarball
+        # if: startsWith(github.ref, 'refs/tags/')
+        run: |
+          mkdir -p new_release;
+          export OUTPUT=$PWD/new_release;
+          export TARGETOS=macos;
+          export TARGETARCH=x86_64;
+          export VERSION=$GITHUB_REF_NAME;
+          opam exec -- bash release/release.sh
+
+      - name: upload archives
+        # if: startsWith(github.ref, 'refs/tags/')
+        uses: actions/upload-artifact@v3
+        with:
+          name: archives
+          path: new_release/*
+
+  release:
+    if: startsWith(github.ref, 'refs/tags/')
+    needs: [linux-build, mac-build]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Download build artifacts
+        uses: actions/download-artifact@v3
+        with:
+          name: archives
+          path: archives
+
+      - name: Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            archives/*

compiler/src/bin/dune

@@ -3,6 +3,9 @@
  (name main)
  (modes native)
  (modules main compile)
+ (flags
+  (:standard
+   (:include static-linking-flags/flags)))
  (libraries
   slipshow
   cmdliner

compiler/src/bin/static-linking-flags/dune

@@ -0,0 +1,4 @@
+(rule
+ (with-stdout-to
+  flags
+  (run ocaml %{dep:static_linking_flags.ml} %{ocaml-config:target})))

compiler/src/bin/static-linking-flags/static_linking_flags.ml

@@ -0,0 +1,7 @@
+let () =
+  print_endline
+  @@
+  match Sys.argv.(1) with
+  | "aarch64-unknown-linux-musl" | "x86_64-pc-linux-musl" ->
+      "(-cclib -static -cclib -no-pie)"
+  | _ -> "()"

dune-project

@@ -29,6 +29,13 @@
    base64
    bos
    cmarkit
+   lwt
+   inotify
+   js_of_ocaml-compiler
+   magic-mime
+   dream
+   fpath
+   dream-livereload
   (odoc :with-doc)
   (ocamlformat
    (and :with-dev-setup (= 0.26.1))))

release/Dockerfile

@@ -0,0 +1,9 @@
+FROM ocaml/opam:alpine-ocaml-4.14
+RUN sudo apk add libev-dev openssl-dev
+RUN sudo apk add openssl-libs-static
+WORKDIR slipshow/
+
+COPY --chown=opam *.opam .
+RUN opam install -y --deps-only --with-test --with-doc .
+
+COPY --chown=opam . .

release/release.sh

@@ -0,0 +1,10 @@
+#/usr/bin/env bash
+set -xeuo pipefail
+
+archive_name=$OUTPUT/slipshow-$TARGETOS-$TARGETARCH.tar
+
+dune subst
+
+dune build -p slipshow
+# Executables are symlinks, follow with -h.
+tar hcf "$archive_name" -C _build/install/default bin/slipshow

slipshow.opam

@@ -17,6 +17,13 @@ depends: [
   "base64"
   "bos"
   "cmarkit"
+  "lwt"
+  "inotify"
+  "js_of_ocaml-compiler"
+  "magic-mime"
+  "dream"
+  "fpath"
+  "dream-livereload"
   "odoc" {with-doc}
   "ocamlformat" {with-dev-setup & = "0.26.1"}
 ]