name: Clippy Test (bors)

on:
  push:
    branches: [auto, try]
    # Don't run Clippy tests, when only textfiles were modified
    paths-ignore:
    - 'COPYRIGHT'
    - 'LICENSE-*'
    - '**.md'
    - '**.txt'

env:
  RUST_BACKTRACE: 1
  CARGO_TARGET_DIR: '${{ github.workspace }}/target'
  GHA_CI: 1

jobs:
  base:
    strategy:
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        host: [x86_64-unknown-linux-gnu, i686-unknown-linux-gnu, x86_64-apple-darwin, x86_64-pc-windows-msvc]
        exclude:
        - os: ubuntu-latest
          host: x86_64-apple-darwin
        - os: ubuntu-latest
          host: x86_64-pc-windows-msvc
        - os: macos-latest
          host: x86_64-unknown-linux-gnu
        - os: macos-latest
          host: i686-unknown-linux-gnu
        - os: macos-latest
          host: x86_64-pc-windows-msvc
        - os: windows-latest
          host: x86_64-unknown-linux-gnu
        - os: windows-latest
          host: i686-unknown-linux-gnu
        - os: windows-latest
          host: x86_64-apple-darwin

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

    steps:
    - name: Install dependencies (Linux-i686)
      run: |
        sudo dpkg --add-architecture i386
        sudo apt-get update
        sudo apt-get install gcc-multilib libssl-dev:i386 libgit2-dev:i386
      if: matrix.host == 'i686-unknown-linux-gnu'
    - name: rust-toolchain
      uses: actions-rs/toolchain@v1.0.3
      with:
        toolchain: nightly
        target: ${{ matrix.host }}
        profile: minimal
    - name: Cache cargo dir
      uses: actions/cache@v1
      with:
        path: ~/.cargo
        key: ${{ runner.os }}-${{ matrix.host }}
    - name: Checkout
      uses: actions/checkout@v2.0.0
    - name: Master Toolchain Setup
      run: bash setup-toolchain.sh
      env:
        HOST_TOOLCHAIN: ${{ matrix.host }}
      shell: bash

    - name: Set LD_LIBRARY_PATH (Linux)
      if: runner.os == 'Linux'
      run: |
        SYSROOT=$(rustc --print sysroot)
        echo "::set-env name=LD_LIBRARY_PATH::${SYSROOT}/lib${LD_LIBRARY_PATH+:${LD_LIBRARY_PATH}}"
    - name: Link rustc dylib (MacOS)
      if: runner.os == 'macOS'
      run: |
        SYSROOT=$(rustc --print sysroot)
        sudo mkdir -p /usr/local/lib
        sudo find "${SYSROOT}/lib" -maxdepth 1 -name '*dylib' -exec ln -s {} /usr/local/lib \;
    - name: Set PATH (Windows)
      if: runner.os == 'Windows'
      run: |
        $sysroot = rustc --print sysroot
        $env:PATH += ';' + $sysroot + '\bin'
        echo "::set-env name=PATH::$env:PATH"
    - name: Build
      run: cargo build --features deny-warnings
      shell: bash
    - name: Test
      run: cargo test --features deny-warnings
      shell: bash
    - name: Test clippy_lints
      run: cargo test --features deny-warnings
      shell: bash
      working-directory: clippy_lints
    - name: Test rustc_tools_util
      run: cargo test --features deny-warnings
      shell: bash
      working-directory: rustc_tools_util
    - name: Test clippy_dev
      run: cargo test --features deny-warnings
      shell: bash
      working-directory: clippy_dev
    - name: Test cargo-clippy
      run: ../target/debug/cargo-clippy
      shell: bash
      working-directory: clippy_workspace_tests
    - name: Test clippy-driver
      run: |
        (
          set -ex
          # Check sysroot handling
          sysroot=$(./target/debug/clippy-driver --print sysroot)
          test "$sysroot" = "$(rustc --print sysroot)"

          if [[ ${{ runner.os }} == "Windows" ]]; then
            desired_sysroot=C:/tmp
          else
            desired_sysroot=/tmp
          fi
          sysroot=$(./target/debug/clippy-driver --sysroot $desired_sysroot --print sysroot)
          test "$sysroot" = $desired_sysroot

          sysroot=$(SYSROOT=$desired_sysroot ./target/debug/clippy-driver --print sysroot)
          test "$sysroot" = $desired_sysroot

          # Make sure this isn't set - clippy-driver should cope without it
          unset CARGO_MANIFEST_DIR

          # Run a lint and make sure it produces the expected output. It's also expected to exit with code 1
          # FIXME: How to match the clippy invocation in compile-test.rs?
          ./target/debug/clippy-driver -Dwarnings -Aunused -Zui-testing --emit metadata --crate-type bin tests/ui/cstring.rs 2> cstring.stderr && exit 1
          sed -e 's,tests/ui,$DIR,' -e '/= help/d' cstring.stderr > normalized.stderr
          diff normalized.stderr tests/ui/cstring.stderr

          # TODO: CLIPPY_CONF_DIR / CARGO_MANIFEST_DIR
        )
      shell: bash

    - name: Run cargo-cache --autoclean
      run: |
        cargo install cargo-cache --debug
        /usr/bin/find ~/.cargo/bin ! -type d -exec strip {} \;
        cargo cache --autoclean
      shell: bash