lint.yml

name: Lint

on: [push, pull_request]

env:
  CARGO_TERM_COLOR: always

jobs:
  format:
    name: "Formatting Check"
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v2
      
      - name: Clang-Format Formatting
        uses: jidicula/clang-format-action@v4.8.0
        with:
          check-path: llvm-plugin/cpp

      - name: Rustfmt Formatting
        run: |
          cargo fmt --check --all

  lint:
    name: "Lint Check"
    runs-on: ubuntu-latest
    env:
      LLVM_INSTALL_PATH: ~/llvm
      LLVM_VERSION: "14"
    steps:
      - name: Checkout Repo
        uses: actions/checkout@v2

      - name: Setup LLVM Installation Path
        run: |
          mkdir ${{ env.LLVM_INSTALL_PATH }}
          echo "$HOME/llvm/bin" >> $GITHUB_PATH

      - name: Check LLVM Artifacts In Cache
        id: cache-llvm
        uses: actions/cache@v3
        with:
          path: |
            ${{ env.LLVM_INSTALL_PATH }}/bin/llvm-config
            ${{ env.LLVM_INSTALL_PATH }}/bin/opt
            ${{ env.LLVM_INSTALL_PATH }}/lib/libLLVM-${{ env.LLVM_VERSION }}.so
            ${{ env.LLVM_INSTALL_PATH }}/lib/libLLVM.so
            ${{ env.LLVM_INSTALL_PATH }}/include
          key: ${{ runner.os }}-llvm-${{ env.LLVM_VERSION }}-opt

      - name: LLVM Artifacts Missing
        if: steps.cache-llvm.outputs.cache-hit != 'true'
        run: false

      - name: Clang-Tidy Lint
        run: |
          clang-tidy \
            llvm-plugin/cpp/*.{cc,hh} \
            --warnings-as-errors='*,-llvm-header-guard' \
            -- -I"$HOME/llvm/include" -std=c++17 -DLLVM${{ env.LLVM_VERSION }}_0

      - name: Clippy Lint
        run: |
          cargo clippy \
            -p llvm-plugin \
            --no-default-features \
            --features target-x86,llvm${{ env.LLVM_VERSION }}-0 \
            -- -D warnings