test.yml

name: Tests

on:
  push:
    branches: [main, master]
  pull_request:
    branches: [main, master]

jobs:
  Crate-check:
    runs-on: ${{ matrix.config.os }}
    name: Crate-check ${{ matrix.config.os }} (${{ matrix.config.r }} - ${{ matrix.config.rust-version }})
    
    strategy:
      fail-fast: false
      matrix:
        config:
          - {os: windows-latest, r: 'release', rust-version: 'stable-msvc', target: 'x86_64-pc-windows-gnu', rtools-version: '44'}
          - {os: windows-latest, r: 'devel',   rust-version: 'stable-msvc', target: 'x86_64-pc-windows-gnu', rtools-version: '44'}
          - {os: macOS-latest,   r: 'release', rust-version: 'stable' }
          - {os: ubuntu-latest,  r: 'release', rust-version: 'stable' }
          - {os: ubuntu-latest,  r: 'devel',   rust-version: 'stable' }

    env:
      RSPM: ${{ matrix.config.rspm }}
      GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}

    # PowerShell core is available on all platforms and can be used to unify scripts
    defaults:
      run:
        shell: pwsh

    steps:
      - uses: actions/checkout@v4

      - name: Set up R
        uses: r-lib/actions/setup-r@v2
        with:
          r-version: ${{ matrix.config.r }}
          use-public-rspm: true
          rtools-version: ${{ matrix.config.rtools-version }}

      - name: Set up Rust
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.config.rust-version }}
          components: rustfmt, clippy
          targets: ${{ matrix.config.target }}

      # Stuff here lifted from libR-sys workflows with thanks to authors.
      # All configurations for Windows go here
      # 1. Configure linker
      # 2. Create libgcc_eh mock
      # 3. Add R bin path to PATH
      # 4. Add Rtools' GCC to PATH (required to find linker)
      # 5. Add include path (required to resolve standard headers like stdio.h)
      - name: Configure Windows
        if: runner.os == 'Windows'
        run: |
          # Configure linker
          echo "RUSTFLAGS=-C linker=x86_64-w64-mingw32.static.posix-gcc.exe" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append

          # Create libgcc_eh mock
          New-Item -Path libgcc_mock -Type Directory
          New-Item -Path libgcc_mock\libgcc_eh.a -Type File
          New-Item -Path libgcc_mock\libgcc_s.a -Type File
          $pwd_slash = echo "${PWD}" | % {$_ -replace '\\','/'}
          echo "LIBRARY_PATH=${pwd_slash}/libgcc_mock" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append

          # Add R bin path to PATH
          echo "$(Rscript.exe -e 'cat(normalizePath(R.home()))')\bin\x64"  | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append ;

          # Add Rtools' GCC to PATH
          if ($env:RTOOLS_VERSION -eq '44') {
            $mingw_root = "C:\rtools44\x86_64-w64-mingw32.static.posix"
          } elseif ($env:RTOOLS_VERSION -eq '43') {
            $mingw_root = "C:\rtools43\x86_64-w64-mingw32.static.posix"
          } elseif ($env:RTOOLS_VERSION -eq '42') {
            $mingw_root = "C:\rtools42\x86_64-w64-mingw32.static.posix"
          }
          echo "$mingw_root\bin" | Out-File -FilePath $env:GITHUB_PATH -Encoding utf8 -Append

          # Add include path
          echo "LIBRSYS_LIBCLANG_INCLUDE_PATH=$mingw_root\include" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
        env:
          RUST_TARGET: ${{ matrix.config.target }}
          RTOOLS_VERSION: ${{ matrix.config.rtools-version }}


      # macOS configurations, mainly llvm and path to libclang
      # Because of this R installation issue on macOS-11.0 
      # https://github.com/r-lib/actions/issues/200
      # Symlinks to R/Rscript are not properly set up, so we do it by hand, using this trick
      # https://github.com/r-lib/ps/commit/a24f2c4d1bdba63be14e7729b9ab81d0ed9f719e
      # Environment variables are required fir Mac-OS-11.0, see
      # https://github.com/extendr/libR-sys/issues/35
      - name: Configure macOS
        if: runner.os == 'macOS'
        run: |
          brew install llvm
          echo "LIBCLANG_PATH=$(brew --prefix llvm)/lib" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
          $env:LLVM_CONFIG_PATH = "$(brew --prefix llvm)/bin/llvm-config" 
          echo "LLVM_CONFIG_PATH=$env:LLVM_CONFIG_PATH" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append
          echo "LIBRSYS_LIBCLANG_INCLUDE_PATH=$(. $env:LLVM_CONFIG_PATH --libdir)/clang/$(. $env:LLVM_CONFIG_PATH --version)/include"  | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append

          if ((Get-ChildItem -Path /usr/local/bin -Filter R | Measure-Object).Count -eq 0) {
            echo "::warning:: Found no R symlink in /usr/local/bin, setting up manually..."
            ln -s /Library/Frameworks/R.framework/Versions/Current/Resources/bin/R /usr/local/bin/
          }
          if ((Get-ChildItem -Path /usr/local/bin -Filter Rscript | Measure-Object).Count -eq 0) {
            echo "::warning:: Found no Rscript symlink in /usr/local/bin, setting up manually..."
            ln -s /Library/Frameworks/R.framework/Versions/Current/Resources/bin/Rscript /usr/local/bin/
          }

      # This is required for ubuntu r-devel
      # 'Del alias:R' removes R alias which prevents running R 
      - name: Configure Linux
        if: runner.os == 'linux'
        run: |
          Del alias:R
          echo "LD_LIBRARY_PATH=$(R -s -e 'cat(normalizePath(R.home()))')/lib" | Out-File -FilePath $env:GITHUB_ENV -Encoding utf8 -Append

        env:
          RUST_TARGET: ${{ matrix.config.target }}

      - name: Run test
        run: |
          . ./ci-cargo.ps1
          ci-cargo test -vv
        env:
          RUST_TARGET: ${{ matrix.config.target }}