ci.yml

name: CI

on:
  push:
    branches: [master]
    # See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#filter-pattern-cheat-sheet
    tags:
      - "v[0-9]+.[0-9]+.[0-9]+"
      - "v[0-9]+.[0-9]+.[0-9]+-*"

  pull_request:
    branches: [master]

concurrency:
  group: ci-${{ github.ref }}-1
  # Cancel previous builds for pull requests only.
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

env:
  OCAMLRUNPARAM: b

jobs:
  # Build statically linked Linux binaries in an Alpine-based Docker container
  # See https://ocamlpro.com/blog/2021_09_02_generating_static_and_portable_executables_with_ocaml
  # for more info.
  # The container already comes with all required tools pre-installed
  # (see https://github.com/rescript-lang/docker-rescript-ci-build/blob/main/Dockerfile).
  static-binaries-linux:
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, buildjet-2vcpu-ubuntu-2204-arm]

    runs-on: ${{matrix.os}}

    container:
      image: ghcr.io/rescript-lang/rescript-ci-build:v1.1.0

    steps:
      # See https://github.com/actions/runner/issues/801#issuecomment-1374967227.
      - name: Workaround for Github actions runner on Alpine arm64
        if: runner.arch	== 'ARM64'
        run: sed -i "s:ID=alpine:ID=NotpineForGHA:" /etc/os-release

      - name: Checkout
        uses: actions/checkout@v3

      - name: Build compiler binaries
        run: opam exec -- dune build --display quiet --profile static

      - name: Build ninja binary
        working-directory: ninja
        env:
          LDFLAGS: -static
        run: python3 configure.py --bootstrap --verbose

      - name: "Upload artifacts"
        uses: actions/upload-artifact@v3
        with:
          name: static-binaries-linux-${{runner.arch}}
          path: |
            _build/install/default/bin
            ninja/ninja

  # The full build including tests does not work on Linux ARM because setup-ocaml fails.
  # Therefore, only upload the binaries from the static build
  upload-linux-arm64-binaries:
    needs:
      - static-binaries-linux

    runs-on: buildjet-2vcpu-ubuntu-2204-arm

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Download static linux binaries
        if: runner.os == 'Linux'
        uses: actions/download-artifact@v3
        with:
          name: static-binaries-linux-${{ runner.arch }}

      - name: Make static linux binaries executable
        if: runner.os == 'Linux'
        run: |
          chmod +x ninja/ninja
          chmod +x _build/install/default/bin/*

      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: Copy exes to platform bin dirs
        run: node ./scripts/copyExes.js

      - name: Prepare artifact upload
        run: node .github/workflows/get_artifact_info.js

      - name: "Upload artifacts: binaries"
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.artifact_name }}
          path: ${{ env.artifact_path }}

  build:
    needs: static-binaries-linux

    strategy:
      fail-fast: false
      matrix:
        os: [macos-latest, ubuntu-latest, windows-latest, macos-arm]
        ocaml_compiler: [4.14.0]

    runs-on: ${{matrix.os}}

    env:
      DUNE_PROFILE: release

    steps:
      - name: "Windows: Set git to use LF"
        if: runner.os == 'Windows'
        run: |
          git config --global core.autocrlf false
          git config --global core.eol lf

      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 2 # to be able to check for changes in subfolder jscomp/syntax later

      - name: Download static linux binaries
        if: runner.os == 'Linux'
        uses: actions/download-artifact@v3
        with:
          name: static-binaries-linux-${{ runner.arch }}

      - name: Make static linux binaries executable
        if: runner.os == 'Linux'
        run: |
          chmod +x ninja/ninja
          chmod +x _build/install/default/bin/*

      - name: Use OCaml ${{matrix.ocaml_compiler}}
        uses: ocaml/setup-ocaml@v2
        with:
          ocaml-compiler: ${{matrix.ocaml_compiler}}
          opam-pin: false
          opam-depext: false

      - name: "Install OPAM dependencies"
        run: opam install . --deps-only

      - name: "Build compiler"
        if: runner.os != 'Linux'
        run: opam exec -- dune build --display quiet --profile release

      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: Install npm packages
        run: npm ci --ignore-scripts

      - name: "Windows: Use MSVC for ninja build"
        if: runner.os == 'Windows'
        uses: TheMrMilchmann/setup-msvc-dev@v2
        with:
          arch: x64

      - name: Build ninja
        if: runner.os != 'Linux'
        run: node scripts/buildNinjaBinary.js

      - name: Copy exes to platform bin dirs
        run: node ./scripts/copyExes.js

      - name: "Check if syntax subfolder has changed"
        id: syntax-diff
        shell: bash
        run: |
          if git diff --name-only --exit-code HEAD^ HEAD -- jscomp/syntax; then
            echo "syntax_status=unchanged" >> $GITHUB_ENV
          else
            echo "syntax_status=changed" >> $GITHUB_ENV
          fi

      - name: "Syntax: Run roundtrip tests"
        if: ${{ env.syntax_status == 'changed' && runner.os != 'Windows' }}
        run: opam exec -- make test-syntax-roundtrip

      - name: "Syntax: Run tests (Windows)"
        if: ${{ env.syntax_status == 'changed' && runner.os == 'Windows' }}
        run: opam exec -- make test-syntax

      - name: Build runtime/stdlib
        if: runner.os != 'Windows'
        run: |
          opam exec -- node ./scripts/ninja.js config
          opam exec -- node ./scripts/ninja.js build

      - name: Check for changes in lib folder
        run: git diff --exit-code lib/js lib/es6

      - name: Populate lib/ocaml
        run: ./scripts/prebuilt.js

      - name: Run tests
        if: runner.os != 'Windows'
        run: node scripts/ciTest.js -all

      - name: Run tests (Windows)
        if: runner.os == 'Windows'
        run: node scripts/ciTest.js -mocha -theme -format

      # Build the playground compiler on our fastest runner (macOS ARM)
      - name: Install JSOO
        if: matrix.os == 'macos-arm'
        run: opam install js_of_ocaml.4.0.0

      - name: Build playground compiler
        if: matrix.os == 'macos-arm'
        run: |
          opam exec -- node packages/playground-bundling/scripts/generate_cmijs.js
          opam exec -- dune build --profile browser
          cp ./_build/default/jscomp/jsoo/jsoo_playground_main.bc.js playground/compiler.js

      - name: Test playground compiler
        if: matrix.os == 'macos-arm'
        run: node playground/playground_test.js

      - name: Upload playground compiler to CDN
        if: ${{ matrix.os == 'macos-arm' && startsWith(github.ref, 'refs/tags/v') }}
        env:
          KEYCDN_USER: ${{ secrets.KEYCDN_USER }}
          KEYCDN_PASSWORD: ${{ secrets.KEYCDN_PASSWORD }}
        run: sh playground/upload_bundle.sh

      - name: Prepare artifact upload
        run: node .github/workflows/get_artifact_info.js

      - name: "Upload artifacts: binaries"
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.artifact_name }}
          path: ${{ env.artifact_path }}

      - name: "Upload artifacts: lib/ocaml"
        if: runner.os == 'Linux'
        uses: actions/upload-artifact@v3
        with:
          name: lib-ocaml
          path: lib/ocaml

  package:
    needs: build
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: NPM install
        run: npm ci --ignore-scripts

      - name: Download artifacts
        uses: actions/download-artifact@v3

      - name: Move artifacts
        run: ./scripts/moveArtifacts.sh

      - name: Check artifact list
        run: node ./scripts/makeArtifactList.js -check

      - name: npm pack (rescript)
        run: npm pack

      - name: Copy JS files to stdlib package
        run: mkdir -p packages/std/lib && cp -R lib/es6 lib/js packages/std/lib

      - name: npm pack (@rescript/std)
        run: npm pack
        working-directory: packages/std

      - name: Prepare package upload
        # For pull requests, pass the correct commit SHA explicitly as GITHUB_SHA points to the wrong commit.
        run: node .github/workflows/prepare_package_upload.js ${{ github.event.pull_request.head.sha }}

      - name: "Upload artifact: npm packages"
        uses: actions/upload-artifact@v3
        with:
          name: npm-packages
          path: |
            rescript-${{ env.rescript_version }}.tgz
            rescript-std-${{ env.rescript_version }}.tgz

    outputs:
      rescript_version: ${{ env.rescript_version }}

  installationTest:
    needs: package
    strategy:
      fail-fast: false
      matrix:
        os:
          [
            macos-latest,
            macos-arm,
            ubuntu-latest,
            buildjet-2vcpu-ubuntu-2204-arm,
            windows-latest,
          ]

    runs-on: ${{matrix.os}}

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: Download artifacts
        uses: actions/download-artifact@v3
        with:
          name: npm-packages
          path: packages/test

      - name: Install ReScript package
        run: npm i rescript-${{ needs.package.outputs.rescript_version }}.tgz
        shell: bash
        working-directory: packages/test

      - name: Test installation
        run: npx rescript -h && npx rescript build && cat src/Test.bs.js
        shell: bash
        working-directory: packages/test

  publish:
    needs: [package, installationTest]

    if: startsWith(github.ref, 'refs/tags/v')

    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Use Node.js
        uses: actions/setup-node@v3
        with:
          node-version: 16
          registry-url: https://registry.npmjs.org # Needed to make auth work for publishing

      - name: Download artifacts
        uses: actions/download-artifact@v3
        with:
          name: npm-packages

      - name: Publish packages on npm with tag "ci"
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_ACCESS_TOKEN }}
        run: |
          npm publish rescript-${{ needs.package.outputs.rescript_version }}.tgz --tag ci
          npm publish rescript-std-${{ needs.package.outputs.rescript_version }}.tgz --tag ci

      - name: Update Website Playground
        env:
          NEXT_REVALIDATE_SECRET_TOKEN: ${{ secrets.NEXT_REVALIDATE_SECRET_TOKEN }}
        run: ./playground/website_update_playground.sh
        shell: bash