build.yml

name: Build Quantum C

on:
  push:
    branches: [ master ]
    paths:
      - 'version.txt'

jobs:
  tag:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    outputs:
      version: ${{ steps.get_version.outputs.version }}
      exists: ${{ steps.check_tag.outputs.exists }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Get version
        id: get_version
        run: echo "version=$(cat version.txt | tr -d '[:space:]')" >> $GITHUB_OUTPUT
      - name: Check if tag exists
        id: check_tag
        run: |
          git fetch --tags 
          VERSION=$(cat version.txt | tr -d '[:space:]')
          if git rev-parse "refs/tags/$VERSION" >/dev/null 2>&1; then
            echo "Tag $VERSION already exists. Skipping release steps."
            echo "exists=true" >> $GITHUB_OUTPUT
          else
            echo "Tag $VERSION is new."
            echo "exists=false" >> $GITHUB_OUTPUT
          fi
      - name: Create tag
        if: steps.check_tag.outputs.exists != 'true'
        run: |
          git config user.name "GitHub Actions"
          git config user.email "actions@github.com"
          git tag ${{ steps.get_version.outputs.version }}
          git push origin ${{ steps.get_version.outputs.version }}  
  build-linux:
    needs: [tag]
    if: needs.tag.outputs.exists != 'true'
    runs-on: ubuntu-latest
    container:
      image: debian:sid
    steps:
      - uses: actions/checkout@v4
      
      - name: Install deps
        run: |
          apt update
          apt install -y llvm-21 llvm-21-dev clang-21 libffi-dev pkg-config cmake g++ git libzstd-dev
      
      - name: Generate runtime.ll
        run: clang-21 -S -emit-llvm -O0 -o runtime.ll runtime.cpp
      
      - name: Build (Linux)
        run: |
          cmake -DCMAKE_BUILD_TYPE=Release .
          cmake --build . -j$(nproc)
          mv qc qc-linux

      - name: Upload Linux Binary
        uses: actions/upload-artifact@v4
        with:
          name: qc-linux
          path: qc-linux

  build-macos:
    needs: [tag]
    if: needs.tag.outputs.exists != 'true'
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v4
      
      - name: Install dependencies
        run: |
          brew install llvm@21 libffi cmake
          echo "LLVM_DIR=$(brew --prefix llvm@21)/lib/cmake/llvm" >> $GITHUB_ENV
          echo "$(brew --prefix llvm@21)/bin" >> $GITHUB_PATH
      - name: Generate runtime.ll
        run: clang -S -emit-llvm -O0 -I$(brew --prefix libffi)/include -o runtime.ll runtime.cpp
      - name: Build (macOS)
        run: |
          cmake -DCMAKE_BUILD_TYPE=Release -DLLVM_DIR=$LLVM_DIR .
          cmake --build . -j$(sysctl -n hw.logicalcpu)
          mv qc qc-macos

      - name: Upload macOS Binary
        uses: actions/upload-artifact@v4
        with:
          name: qc-macos
          path: qc-macos
  upload-extras:
    needs: [tag]
    if: needs.tag.outputs.exists != 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Upload stdlib
        uses: actions/upload-artifact@v4
        with:
          name: stdlib.qc
          path: stdlib.qc
      - name: Upload syntax
        uses: actions/upload-artifact@v4
        with:
          name: syntax.qc
          path: syntax.qc
      - name: Upload test
        uses: actions/upload-artifact@v4
        with:
          name: test.qc
          path: test.qc
  build-wasm:
    runs-on: ubuntu-latest
    needs: ['tag']
    steps:
      - uses: actions/checkout@v4
      - name: Setup Emscripten
        uses: mymindstorm/setup-emsdk@v13
        with:
          version: 'latest'
      - name: Install dependencies
        run: |
            sudo apt update
            sudo apt install -y \
              cmake ninja-build git \
              zlib1g-dev libffi-dev libxml2-dev libedit-dev libzstd-dev
      - name: Restore LLVM cache
        id: cache-llvm
        uses: actions/cache/restore@v4
        with:
          path: llvm-install
          key: llvm-wasm-${{ runner.os }}-21
      - name: Build LLVM To WASM
        if: steps.cache-llvm.outputs.cache-hit != 'true'
        run: |
          git clone --depth 1 https://github.com/llvm/llvm-project.git
          cd llvm-project
          emcmake cmake -S llvm -B build -G Ninja \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_INSTALL_PREFIX=$GITHUB_WORKSPACE/llvm-install \
            -DLLVM_TARGETS_TO_BUILD="WebAssembly" \
            -DLLVM_ENABLE_PROJECTS="" \
            -DLLVM_INCLUDE_TESTS=OFF \
          -DLLVM_INCLUDE_EXAMPLES=OFF \
          -DLLVM_INCLUDE_BENCHMARKS=OFF \
          -DLLVM_ENABLE_ZLIB=OFF \
          -DLLVM_ENABLE_TERMINFO=OFF \
          -DLLVM_ENABLE_LIBXML2=OFF \
          -DLLVM_ENABLE_LIBEDIT=OFF \
          -DLLVM_ENABLE_FFI=OFF \
          -DLLVM_ENABLE_ZSTD=OFF
          ninja -C build -j$(nproc)
          ninja -C build install
      - name: Save LLVM cache
        if: steps.cache-llvm.outputs.cache-hit != 'true' && success()
        uses: actions/cache/save@v4
        with:
          path: llvm-install
          key: llvm-wasm-${{ runner.os }}-21
      - name: Build QuantumC (WASM)
        run: |
          mkdir -p build
          cd build
          emcmake cmake .. \
            -DCMAKE_BUILD_TYPE=Release \
            -DLLVM_DIR=$GITHUB_WORKSPACE/llvm-install/lib/cmake/llvm \
            -DCMAKE_PREFIX_PATH=$GITHUB_WORKSPACE/llvm-install

          emmake make -j$(nproc) VERBOSE=1
      - name: Upload WASM build
        uses: actions/upload-artifact@v4
        with:
          name: qc-wasm
          path: |
            build/qc.js
            build/qc.wasm
            build/qc.data
  deploy-to-website:  
    needs: [build-wasm, tag]
    runs-on: ubuntu-latest
    if: github.ref == 'refs/heads/master'
    steps:
      - name: Checkout website repo
        uses: actions/checkout@v4
        with:
          repository: Youg-Otricked/learnhardcode
          token: ${{ secrets.PAT_TOKEN }}
          path: website
      
      - name: Download WASM artifacts
        uses: actions/download-artifact@v4
        with:
          name: qc-wasm
          path: ./wasm-files
      
      - name: Copy WASM files to website repo
        run: |
          cp wasm-files/qc.js website/QuantumC/
          cp wasm-files/qc.wasm website/QuantumC/
          cp wasm-files/stdlib.qc website/QuantumC/stdlib.qc
          cp wasm-files/qc.data website/QuantumC/
       
      - name: Commit and push to website repo
        run: |
          cd website
          git config user.name "GitHub Actions"
          git config user.email "actions@github.com"
          git add QuantumC/qc.js QuantumC/qc.wasm QuantumC/stdlib.qc QuantumC/qc.data
          git commit -m "Update Quantum C compiler [automated]" || echo "No changes to commit"
          git push
  release:
    needs: [tag, build-linux, build-macos, upload-extras]
    if: always() && needs.tag.outputs.exists != 'true' && needs.tag.result == 'success'
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Download artifacts
        uses: actions/download-artifact@v4
      
      - name: Create Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: ${{ needs.tag.outputs.version }}
          files: |
            qc-linux/qc-linux
            qc-macos/qc-macos
            stdlib.qc/stdlib.qc