ci.yml

name: CI

permissions:
  contents: read
  actions: read
  security-events: write

on:
  push:
    branches:
      - main
    paths:
      - '.github/workflows/ci.yml'
      - '**/*.cpp'
      - '**/*.hpp'
      - '**/CMakeLists.txt'
      - '**/.clang-tidy'
  pull_request:
    branches:
      - main
    paths:
      - '.github/workflows/ci.yml'
      - '**/*.cpp'
      - '**/*.hpp'
      - '**/CMakeLists.txt'
      - '**/.clang-tidy'

jobs:
  code-style-check:
    name: Code style check
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    - uses: DoozyX/clang-format-lint-action@v0.17
      with:
        source: './compiler'
        extensions: 'hpp,cpp'
        clangFormatVersion: 17

  build-gcc:
    name: Build on Ubuntu GCC
    runs-on: ubuntu-latest
    needs: code-style-check
    container:
      image: ghcr.io/vla5924-practice/compiler-project/devcontainer:latest
      options: --user root
      credentials:
        username: ${{ github.actor }}
        password: ${{ secrets.github_token }}
    steps:
      - name: Initialize repository
        uses: actions/checkout@v4
        with:
          submodules: true
      - name: Build
        env:
          CC: gcc
          CXX: g++
        run: |
          cmake -S compiler -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_CODEGEN='ast_to_llvmir;optree_to_llvmir'
          cmake --build build --parallel
      - name: Archive binaries
        run: tar cf binaries.tar -C build bin
      - name: Upload binaries
        uses: actions/upload-artifact@v4
        with:
          name: binaries-ubuntu-latest-gcc
          path: binaries.tar

  build-clang:
    name: Build on Ubuntu Clang
    runs-on: ubuntu-latest
    needs: code-style-check
    container:
      image: ghcr.io/vla5924-practice/compiler-project/devcontainer:latest
      options: --user root
      credentials:
        username: ${{ github.actor }}
        password: ${{ secrets.github_token }}
    steps:
      - name: Initialize repository
        uses: actions/checkout@v4
        with:
          submodules: true
      - name: Build
        env:
          CC: clang
          CXX: clang++
        run: |
          cmake -S compiler -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_CODEGEN='ast_to_llvmir;optree_to_llvmir'
          cmake --build build --parallel

  build-msvc:
    name: Build on Windows MSVC
    runs-on: windows-latest
    needs: code-style-check
    steps:
      - name: Initialize repository
        uses: actions/checkout@v4
        with:
          submodules: true
      - name: Build
        run: |
          cmake -S compiler -B build -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release
          cmake --build build --parallel

  unit-test:
    name: Unit test
    runs-on: ubuntu-latest
    needs: build-gcc
    container:
      image: ghcr.io/vla5924-practice/compiler-project/devcontainer:latest
      options: --user root
      credentials:
        username: ${{ github.actor }}
        password: ${{ secrets.github_token }}
    steps:
      - name: Download binaries
        uses: actions/download-artifact@v4
        with:
          name: binaries-ubuntu-latest-gcc
      - name: Extract binaries
        run: tar xf binaries.tar
      - name: Run AST interface tests
        run: ./bin/ast_test
      - name: Run operation tree interface tests
        run: ./bin/optree_test
      - name: Run frontend tests
        run: ./bin/frontend_test
      - name: Run AST-based backend tests
        run: ./bin/backend_ast_test
      - name: Run optree-based backend tests
        run: ./bin/backend_optree_test
      - name: Run codegen tests (AST to LLVM IR)
        run: ./bin/codegen_ast_to_llvmir_test
      - name: Run codegen tests (optree to LLVM IR)
        run: ./bin/codegen_optree_to_llvmir_test

  code-coverage:
    name: Code coverage
    runs-on: ubuntu-latest
    needs: build-gcc
    container:
      image: ghcr.io/vla5924-practice/compiler-project/devcontainer:latest
      options: --user root
      credentials:
        username: ${{ github.actor }}
        password: ${{ secrets.github_token }}
    steps:
      - name: Install dependencies
        run: |
          apt-get update
          apt-get install -y -q --no-install-recommends lcov curl
      - name: Initialize repository
        uses: actions/checkout@v4
        with:
          submodules: true
      - name: Build and run tests
        run: |
          cmake -S compiler -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DENABLE_CODEGEN=OFF -DENABLE_COVERAGE=ON
          cmake --build build --target run_tests --parallel
      - name: Generate coverage report
        run: cmake --build build --target coverage
      - name: Upload coverage report
        uses: actions/upload-artifact@v4
        with:
          name: code-coverage-report
          path: build/coverage
      - name: Post coverage to Coveralls.io
        uses: coverallsapp/github-action@v2.2.3
        with:
          github-token: ${{ secrets.github_token }}
          file: ./build/coverage.info
          format: lcov
          fail-on-error: false

  clang-tidy:
    name: Clang-tidy analysis
    runs-on: ubuntu-latest
    needs: code-style-check
    if: github.event_name == 'pull_request'
    container:
      image: ghcr.io/vla5924-practice/compiler-project/devcontainer:latest
      options: --user root
      credentials:
        username: ${{ github.actor }}
        password: ${{ secrets.github_token }}
    steps:
      - name: Install dependencies
        run: |
          wget --no-check-certificate -qL -O clang-tidy-sarif https://github.com/psastras/sarif-rs/releases/download/clang-tidy-sarif-v0.4.2/clang-tidy-sarif-x86_64-unknown-linux-gnu
          chmod +x clang-tidy-sarif
          mv clang-tidy-sarif /usr/bin
          ln -s /usr/share/clang/clang-tidy-diff.py /usr/bin/clang-tidy-diff
      - name: Initialize repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 50
          submodules: true
      - name: Configure Git
        run: |
          git config --global --add safe.directory $(pwd)
          git fetch origin main
      - name: Build compilation database
        run: |
          cmake -S compiler -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DENABLE_CODEGEN='ast_to_llvmir;optree_to_llvmir'
          cmake --build build --parallel
      - name: Run clang-tidy analysis
        run: |
          git diff -U0 origin/main | clang-tidy-diff -p1 -path build > clang-tidy.log
          cat clang-tidy.log
          clang-tidy-sarif clang-tidy.log clang-tidy.json
          sed -i -E "s@${PWD}/@@" clang-tidy.json
      - name: Upload report
        uses: github/codeql-action/upload-sarif@v3
        with:
          sarif_file: clang-tidy.json
          category: clang-tidy
      - name: Verify result
        run: |
          if grep -q '"level": "error"' clang-tidy.json; then
            echo "Errors were found during clang-tidy analysis."
            false
          fi