ci.yml

name: CI

on:
  push:
    branches: [master, 11.0_release]
    # 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, 11.0_release]

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-rewatch:
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: macos-13 # x64
            rust-target: x86_64-apple-darwin
          - os: macos-14 # ARM
            rust-target: aarch64-apple-darwin
          - os: ubuntu-latest # x64
            rust-target: x86_64-unknown-linux-musl
          - os: buildjet-2vcpu-ubuntu-2204-arm # ARM
            rust-target: aarch64-unknown-linux-musl
          - os: windows-latest
            rust-target: x86_64-pc-windows-gnu

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

    env:
      RUST_BACKTRACE: "1"

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Restore build cache
        id: build-cache
        uses: actions/cache@v4
        with:
          path: rewatch/target
          key: rewatch-build-v2-${{ matrix.rust-target }}-${{ hashFiles('rewatch/src/**', 'rewatch/Cargo.lock') }}

      - name: Install musl gcc
        if: steps.build-cache.outputs.cache-hit != 'true' && runner.os == 'Linux'
        run: sudo apt-get install -y --no-install-recommends musl-tools

      - name: Install rust toolchain
        if: steps.build-cache.outputs.cache-hit != 'true'
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: stable
          targets: ${{matrix.rust-target}}

      - name: Build rewatch
        if: steps.build-cache.outputs.cache-hit != 'true'
        run: cargo build --manifest-path rewatch/Cargo.toml --target ${{matrix.rust-target}} --release

      - name: Copy rewatch exe to platform bin dir
        run: |
          cp rewatch/target/${{matrix.rust-target}}/release/rewatch${{ runner.os == 'Windows' && '.exe' || '' }} rewatch
          node ./scripts/copyExes.js -rewatch

      - name: Get artifact dir name
        run: node .github/workflows/get_artifact_dir_name.js

      - name: "Upload artifact: rewatch binary"
        uses: actions/upload-artifact@v4
        with:
          name: rewatch-${{env.artifact_dir_name}}
          path: ${{ env.artifact_dir_name }}

  build-compiler:
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest # x64
            ocaml_compiler: ocaml-variants.5.2.0+options,ocaml-option-static
            upload_binaries: true
            upload_libs: true
            # Build the playground compiler and run the benchmarks on the fastest runner
            build_playground: true
            benchmarks: true
          - os: buildjet-2vcpu-ubuntu-2204-arm # ARM
            ocaml_compiler: ocaml-variants.5.2.0+options,ocaml-option-static
            upload_binaries: true
          - os: macos-13 # x64
            ocaml_compiler: 5.2.0
            upload_binaries: true
          - os: macos-14 # ARM
            ocaml_compiler: 5.2.0
            upload_binaries: true
          - os: windows-latest
            ocaml_compiler: 5.2.0
            upload_binaries: true

          # Verify that the compiler still builds with older OCaml versions
          - os: ubuntu-latest
            ocaml_compiler: ocaml-variants.5.0.0+options,ocaml-option-static
          - os: ubuntu-latest
            ocaml_compiler: ocaml-variants.4.14.2+options,ocaml-option-static
          - os: ubuntu-latest
            ocaml_compiler: ocaml-variants.4.13.0+options,ocaml-option-static

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

    env:
      # setup-ocaml opam version cannot be configured
      # we do track its version mannually
      OPAM_VERSION: 2.2.0
      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@v4

      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Get artifact dir name
        run: node .github/workflows/get_artifact_dir_name.js

      - name: Install dependencies (Linux)
        if: runner.os == 'Linux'
        uses: awalsh128/cache-apt-pkgs-action@v1.4.2
        with:
          # See https://github.com/ocaml/setup-ocaml/blob/b2105f9/packages/setup-ocaml/src/unix.ts#L9
          packages: bubblewrap darcs g++-multilib gcc-multilib mercurial musl-tools rsync
          version: v2

      # matrix.ocaml_compiler may contain commas
      - name: Get OPAM cache key
        shell: bash
        run: echo "opam_cache_key=opam-env-v4-${{ matrix.os }}-${{ matrix.ocaml_compiler }}-${{ hashFiles('dune-project') }}" | sed 's/,/-/g' >> $GITHUB_ENV

      - name: Restore OPAM environment
        id: cache-opam-env
        uses: actions/cache/restore@v4
        with:
          path: |
            ${{ runner.tool_cache }}/opam
            ~/.opam
            _opam
            .opam-path
            D:\cygwin
            D:\.opam
          key: ${{ env.opam_cache_key }}

      - name: Use OCaml ${{matrix.ocaml_compiler}}
        uses: ocaml/setup-ocaml@v3.0.7
        if: steps.cache-opam-env.outputs.cache-hit != 'true'
        with:
          ocaml-compiler: ${{matrix.ocaml_compiler}}
          opam-pin: false

      - name: Get OPAM executable path
        if: steps.cache-opam-env.outputs.cache-hit != 'true'
        uses: actions/github-script@v7
        with:
          script: |
            const opamPath = await io.which('opam', true);
            console.log('opam executable found: %s', opamPath);

            const fs = require('fs/promises');
            await fs.writeFile('.opam-path', opamPath, 'utf-8');
            console.log('stored path to .opam-path');

      - name: Install OPAM dependencies
        if: steps.cache-opam-env.outputs.cache-hit != 'true'
        run: opam install . --deps-only --with-test

      - name: Cache OPAM environment
        if: steps.cache-opam-env.outputs.cache-hit != 'true'
        uses: actions/cache/save@v4
        with:
          path: |
            ${{ runner.tool_cache }}/opam
            ~/.opam
            _opam
            .opam-path
            D:\cygwin
            D:\.opam
          key: ${{ env.opam_cache_key }}

      - name: Use cached OPAM environment
        if: steps.cache-opam-env.outputs.cache-hit == 'true'
        run: |
          # https://github.com/ocaml/setup-ocaml/blob/b2105f9/packages/setup-ocaml/src/installer.ts#L33
          echo "OPAMVERBOSE=$RUNNER_DEBUG"   >> "$GITHUB_ENV"
          echo "OPAMCOLOR=always"            >> "$GITHUB_ENV"
          echo "OPAMCONFIRMLEVEL=unsafe-yes" >> "$GITHUB_ENV"
          echo "OPAMERRLOGLEN=0"             >> "$GITHUB_ENV"
          echo "OPAMPRECISETRACKING=1"       >> "$GITHUB_ENV"
          echo "OPAMYES=1"                   >> "$GITHUB_ENV"

          if [[ "$RUNNER_OS" != "Windows" ]]; then
            echo "OPAMROOT=$HOME/.opam"      >> "$GITHUB_ENV"
          else
            echo "OPAMROOT=D:\\.opam"        >> "$GITHUB_ENV"
          fi

          OPAM_PATH="$(cat .opam-path)"
          chmod +x "$OPAM_PATH"
          dirname "$OPAM_PATH" >> "$GITHUB_PATH"

          if [[ "$RUNNER_OS" == "Windows" ]]; then
            fsutil behavior query SymlinkEvaluation
            fsutil behavior set symlinkEvaluation R2L:1 R2R:1
            fsutil behavior query SymlinkEvaluation

            CYGWIN="winsymlinks:native"
            CYGWIN_ROOT="D:\\cygwin"
            CYGWIN_ROOT_BIN="D:\\cygwin\\bin"
            CYGWIN_ROOT_WRAPPERBIN="D:\\cygwin\\wrapperbin"

            echo "HOME=$USERPROFILE" >> "$GITHUB_ENV"
            echo "MSYS=winsymlinks:native" >> "$GITHUB_ENV"
            echo "CYGWIN=$CYGWIN" >> "$GITHUB_ENV"
            echo "CYGWIN_ROOT=$CYGWIN_ROOT" >> "$GITHUB_ENV"
            echo "CYGWIN_ROOT_BIN=$CYGWIN_ROOT_BIN" >> "$GITHUB_ENV"
            echo "CYGWIN_ROOT_WRAPPERBIN=$CYGWIN_ROOT_WRAPPERBIN" >> "$GITHUB_ENV"

            echo "$CYGWIN_ROOT_WRAPPERBIN" >> "$GITHUB_PATH"
          fi
        shell: bash

      # see https://github.com/ocaml/setup-ocaml/issues/815
      - name: "Windows: set SHELLOPTS=igncr"
        if: runner.os == 'Windows'
        run: echo "SHELLOPTS=igncr" >>"$GITHUB_ENV"
          
      - name: Build compiler
        if: runner.os != 'Linux'
        run: opam exec -- dune build --display quiet --profile release

      - name: Build compiler (Linux static)
        if: runner.os == 'Linux'
        run: opam exec -- dune build --display quiet --profile static

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

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

      - name: Restore ninja build cache
        id: ninja-build-cache
        uses: actions/cache@v4
        with:
          path: ${{ env.artifact_dir_name }}/ninja.exe
          key: ninja-build-v1-${{ matrix.os }}-${{ hashFiles('ninja/src/**') }}

      - name: Setup Python for ninja build
        if: steps.ninja-build-cache.outputs.cache-hit != 'true'
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'

      - name: Setup MSVC for ninja build (Windows)
        if: steps.ninja-build-cache.outputs.cache-hit != 'true' && runner.os == 'Windows'
        uses: TheMrMilchmann/setup-msvc-dev@v3
        with:
          arch: x64

      - name: Build ninja
        if: steps.ninja-build-cache.outputs.cache-hit != 'true' && runner.os != 'Linux'
        run: node scripts/buildNinjaBinary.js

      - name: Build ninja (Linux static)
        if: steps.ninja-build-cache.outputs.cache-hit != 'true' && runner.os == 'Linux'
        env:
          LDFLAGS: -static
        run: node scripts/buildNinjaBinary.js

      - name: Copy ninja exe to platform bin dir
        if: steps.ninja-build-cache.outputs.cache-hit != 'true'
        run: node ./scripts/copyExes.js -ninja

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

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

      - name: Build runtime/stdlib
        run: ./scripts/buildRuntime.sh
        shell: bash

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

      - name: Version Check
        run: ./scripts/prebuilt.js

      - name: Run tests
        run: node scripts/test.js -all

      - name: Check for diffs in tests folder
        run: git diff --ignore-cr-at-eol --exit-code tests

      - name: Run gentype tests
        if: runner.os != 'Windows'
        run: make -C tests/gentype_tests/typescript-react-example clean test

      - name: Run syntax benchmarks
        if: matrix.benchmarks
        run: ./_build/install/default/bin/syntax_benchmarks | tee tests/benchmark-output.json

      - name: Restore previous benchmark data
        if: matrix.benchmarks
        uses: actions/cache/restore@v4
        with:
          path: ./tests/benchmark-cache
          key: syntax-benchmark-v1
 
      - name: Create new benchmark data and comment on alert
        # Do not run for PRs created from other repos as those won't be able to write to the pull request
        if: ${{ matrix.benchmarks && (github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.event.repository.full_name) }}
        uses: benchmark-action/github-action-benchmark@v1
        with:
          name: Syntax Benchmarks
          tool: customSmallerIsBetter
          output-file-path: tests/benchmark-output.json
          external-data-json-path: ./tests/benchmark-cache/benchmark-data.json
          github-token: ${{ secrets.GITHUB_TOKEN }}
          alert-threshold: "105%"
          comment-always: false
          comment-on-alert: true

      - name: Save benchmark data as new baseline
        if: matrix.benchmarks && github.ref == 'refs/heads/master'
        uses: actions/cache/save@v4
        with:
          path: ./tests/benchmark-cache
          key: syntax-benchmark-v1
     
      - name: Build playground compiler
        if: matrix.build_playground
        run: |
          opam exec -- node packages/playground-bundling/scripts/generate_cmijs.js
          opam exec -- dune build --profile browser
          cp ./_build/default/compiler/jsoo/jsoo_playground_main.bc.js playground/compiler.js

      - name: Test playground compiler
        if: matrix.build_playground
        run: node playground/playground_test.js

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

      - name: "Upload artifacts: binaries"
        if: matrix.upload_binaries
        uses: actions/upload-artifact@v4
        with:
          name: binaries-${{ env.artifact_dir_name }}
          path: ${{ env.artifact_dir_name }}

      - name: "Upload artifacts: lib/ocaml"
        if: matrix.upload_libs
        uses: actions/upload-artifact@v4
        with:
          name: lib-ocaml
          path: lib/ocaml

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

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18

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

      - name: Download artifacts
        uses: actions/download-artifact@v4
        with:
          pattern: "@(binaries-*|rewatch-*|lib-ocaml)"

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

      - name: npm pack (rescript) + check artifact list
        run: node ./scripts/npmPack.js

      - 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@v4
        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-13, # x64
            macos-14, # ARM
            ubuntu-latest,
            buildjet-2vcpu-ubuntu-2204-arm,
            windows-latest,
          ]

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

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18

      - name: Download artifacts
        uses: actions/download-artifact@v4
        with:
          name: npm-packages
          path: packages/test

      - name: Install ReScript package
        run: |
          npm i --ignore-scripts --no-audit \
            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@v4

      - name: Use Node.js
        uses: actions/setup-node@v4
        with:
          node-version: 18
          registry-url: https://registry.npmjs.org # Needed to make auth work for publishing

      - name: Download artifacts
        uses: actions/download-artifact@v4
        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