name: Build & Test

env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: "-D warnings"
  CROSS_DEBUG: 1

on:
  workflow_dispatch:
  workflow_call:
    inputs:
      ref:
        default: ${{ github.ref }}
        type: string

jobs:
  build:
    name: ${{ matrix.runtime }} (${{ matrix.target }}) (${{ matrix.os }})
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        runtime:
        - linux-arm64   #
        - linux-arm     #
        - linux-x64     #
        - linux-x86     #
        - windows-x64   # <-- No C library build - requires an additional adapted Makefile for `cl.exe` compiler
        - windows-x86   #     -- // --
        - macos-arm64   # <-- MacOS M1/M2 - no tests, only CLI build to be published on release artifacts
        - macos-x64     #

        include:
        # When adding a new `target`:
        # 1. Define a new runtime alias above
        # 2. Add a new record to a matrix map in `cli/npm/install.js`
        - { runtime: linux-arm64   , target: aarch64-unknown-linux-gnu   , os: ubuntu-latest  , use-cross: true }
        - { runtime: linux-arm     , target: arm-unknown-linux-gnueabihf , os: ubuntu-latest  , use-cross: true }
        - { runtime: linux-x64     , target: x86_64-unknown-linux-gnu    , os: ubuntu-latest                    }
        - { runtime: linux-x86     , target: i686-unknown-linux-gnu      , os: ubuntu-latest  , use-cross: true }
        - { runtime: windows-x64   , target: x86_64-pc-windows-msvc      , os: windows-latest                   }
        - { runtime: windows-x86   , target: i686-pc-windows-msvc        , os: windows-latest                   }
        - { runtime: macos-arm64   , target: aarch64-apple-darwin        , os: macos-latest                     }
        - { runtime: macos-x64     , target: x86_64-apple-darwin         , os: macos-latest                     }

        # Cross compilers for C library
        - { runtime: linux-arm64   , cc: aarch64-linux-gnu-gcc           , ar: aarch64-linux-gnu-ar               }
        - { runtime: linux-arm     , cc: arm-unknown-linux-gnueabihf-gcc , ar: arm-unknown-linux-gnueabihf-gcc-ar }
        - { runtime: linux-x86     , cc: i686-linux-gnu-gcc              , ar: i686-linux-gnu-ar                  }

        # See #2041 tree-sitter issue
        - { runtime: windows-x64   , rust_test_threads: 1 }
        - { runtime: windows-x86   , rust_test_threads: 1 }

    env:
      BUILD_CMD: cargo

    defaults:
      run:
        shell: bash

    steps:
    - name: Checkout source code
      uses: actions/checkout@v3
      with:
        ref: ${{ inputs.ref }}

    - name: Read Emscripten version
      run: |
        echo "EMSCRIPTEN_VERSION=$(cat cli/emscripten-version)" >> $GITHUB_ENV

    - name: Install Emscripten
      uses: mymindstorm/setup-emsdk@v12
      with:
        version: ${{ env.EMSCRIPTEN_VERSION }}

    - name: Install Rust toolchain
      uses: dtolnay/rust-toolchain@stable
      with:
        targets: ${{ matrix.target }}

    - name: Install cross
      if: ${{ matrix.use-cross }}
      uses: taiki-e/install-action@v2
      with:
        tool: cross

    - name: Build custom cross image
      if: ${{ matrix.use-cross && matrix.os == 'ubuntu-latest' }}
      run: |
        cd ..

        target="${{ matrix.target }}"
        image=ghcr.io/cross-rs/$target:custom
        echo "CROSS_IMAGE=$image"                              >> $GITHUB_ENV

        echo "[target.$target]"                                >> Cross.toml
        echo "image = \"$image\""                              >> Cross.toml
        echo "CROSS_CONFIG=$PWD/Cross.toml"                    >> $GITHUB_ENV

        echo "FROM ghcr.io/cross-rs/$target:edge"              >> Dockerfile
        echo "ENV DEBIAN_FRONTEND=noninteractive"              >> Dockerfile
        echo "RUN apt-get update && apt-get install -y nodejs" >> Dockerfile
        docker build -t $image .
        docker images
        docker run --rm $image env

        cd -

    - name: Setup env extras
      env:
        RUST_TEST_THREADS: ${{ matrix.rust_test_threads }}
        USE_CROSS: ${{ matrix.use-cross }}
        CC: ${{ matrix.cc }}
        AR: ${{ matrix.ar }}
      run: |
        PATH="$PWD/.github/scripts:$PATH"
        echo "$PWD/.github/scripts" >> $GITHUB_PATH
        echo "TREE_SITTER=tree-sitter.sh" >> $GITHUB_ENV
        echo "ROOT=$PWD" >> $GITHUB_ENV

        export TARGET=${{ matrix.target }}
        echo "TARGET=$TARGET" >> $GITHUB_ENV

        [ -n "$RUST_TEST_THREADS" ] && \
        echo "RUST_TEST_THREADS=$RUST_TEST_THREADS" >> $GITHUB_ENV

        [ -n "$CC" ] && echo "CC=$CC" >> $GITHUB_ENV
        [ -n "$AR" ] && echo "AR=$AR" >> $GITHUB_ENV

        if [ "$USE_CROSS" == "true" ]; then
          echo "BUILD_CMD=cross" >> $GITHUB_ENV
          export CROSS=1; echo "CROSS=1" >> $GITHUB_ENV
          runner=$(cross.sh bash -c "env | sed -nr '/^CARGO_TARGET_.*_RUNNER=/s///p'")
          [ -n "$runner" ] && echo "CROSS_RUNNER=$runner" >> $GITHUB_ENV
        fi

    - name: Build C library
      if: ${{ !contains(matrix.os, 'windows') }} # Requires an additional adapted Makefile for `cl.exe` compiler
      run: make.sh CFLAGS="-Werror" -j

    - name: Build wasm library
      if: ${{ !matrix.use-cross && matrix.runtime != 'macos-arm64' }} # Not used
      run: script/build-wasm

    - name: Build CLI
      run: $BUILD_CMD build --release --target=${{ matrix.target }}

    - name: Fetch fixtures
      if: ${{ matrix.runtime != 'macos-arm64' }} # Not used
      run: script/fetch-fixtures

    - name: Generate fixtures
      if: ${{ matrix.runtime != 'macos-arm64' }} # Can't natively run CLI on runner's host
      run: script/generate-fixtures

    - name: Generate WASM fixtures
      if: ${{ !matrix.use-cross && matrix.runtime != 'macos-arm64' }} # Not used
      run: script/generate-fixtures-wasm

    - name: Run main tests
      if: ${{ matrix.runtime != 'macos-arm64' }} # Can't natively run CLI on runner's host
      run: $BUILD_CMD test --target=${{ matrix.target }}

    - name: Run wasm tests
      if: ${{ !matrix.use-cross && matrix.runtime != 'macos-arm64' }} # Not used
      run: script/test-wasm

    - name: Run benchmarks
      if: ${{ !matrix.use-cross && matrix.runtime != 'macos-arm64' }} # Cross-compiled benchmarks make no sense
      run: $BUILD_CMD bench benchmark -p tree-sitter-cli --target=${{ matrix.target }}

    - name: Upload CLI artifact
      uses: actions/upload-artifact@v3
      with:
        name: tree-sitter.${{ matrix.runtime }}
        path: target/${{ matrix.target }}/release/tree-sitter${{ contains(matrix.target, 'windows') && '.exe' || '' }}
        if-no-files-found: error
        retention-days: 7

    - name: Upload WASM artifacts
      if: ${{ matrix.runtime == 'linux-x64' }}
      uses: actions/upload-artifact@v3
      with:
        name: tree-sitter.wasm
        path: |
          lib/binding_web/tree-sitter.js
          lib/binding_web/tree-sitter.wasm
        if-no-files-found: error
        retention-days: 7