# .github/workflows/release.yml
name: Release

on:
  push:
    tags:
      - 'v*'

jobs:
  build:
    strategy:
      matrix:
        include:
          # --- LINUX ---
          - os: ubuntu-latest
            arch: x86_64
            target_name: creep-linux-x86_64

          - os: ubuntu-latest
            arch: arm64
            target_name: creep-linux-arm64

          # --- WINDOWS ---
          - os: windows-latest
            arch: x86_64
            target_name: creep-windows-x86_64.exe

          - os: windows-latest
            arch: arm64
            target_name: creep-windows-arm64.exe

          # --- MACOS (Apple Silicon only) ---
          - os: macos-latest
            arch: arm64
            target_name: creep-macos-arm64

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

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      # --- LINUX ARM64 ---
      # GitHub doesn't have native Linux ARM runners on free tier,
      # so we cross-compile using a QEMU emulated environment
      - name: Set up QEMU (Linux ARM64 only)
        if: matrix.os == 'ubuntu-latest' && matrix.arch == 'arm64'
        uses: docker/setup-qemu-action@v3

      - name: Install ARM64 cross-compiler (Linux ARM64 only)
        if: matrix.os == 'ubuntu-latest' && matrix.arch == 'arm64'
        run: sudo apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu

      # --- CONFIGURE ---
      - name: Configure (Linux x86_64)
        if: matrix.os == 'ubuntu-latest' && matrix.arch == 'x86_64'
        run: cmake -B build -DCMAKE_BUILD_TYPE=Release

      - name: Configure (Linux ARM64 cross-compile)
        if: matrix.os == 'ubuntu-latest' && matrix.arch == 'arm64'
        run: |
          cmake -B build -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_SYSTEM_NAME=Linux \
            -DCMAKE_SYSTEM_PROCESSOR=aarch64 \
            -DCMAKE_C_COMPILER=aarch64-linux-gnu-gcc \
            -DCMAKE_CXX_COMPILER=aarch64-linux-gnu-g++

      - name: Configure (Windows x86_64)
        if: matrix.os == 'windows-latest' && matrix.arch == 'x86_64'
        run: cmake -B build -DCMAKE_BUILD_TYPE=Release -A x64

      - name: Configure (Windows ARM64)
        if: matrix.os == 'windows-latest' && matrix.arch == 'arm64'
        run: cmake -B build -DCMAKE_BUILD_TYPE=Release -A ARM64

      - name: Configure (macOS ARM64)
        if: matrix.os == 'macos-latest'
        run: cmake -B build -DCMAKE_BUILD_TYPE=Release -DCMAKE_OSX_ARCHITECTURES=arm64

      # --- BUILD ---
      - name: Build
        run: cmake --build build --config Release

      # --- RENAME & UPLOAD ---
      - name: Rename binary (Linux / macOS)
        if: runner.os != 'Windows'
        run: mv build/creep ${{ matrix.target_name }}

      - name: Rename binary (Windows)
        if: runner.os == 'Windows'
        run: mv build/Release/creep.exe ${{ matrix.target_name }}

      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.target_name }}
          path: ${{ matrix.target_name }}

  release:
    needs: build
    runs-on: ubuntu-latest

    steps:
      - name: Download all artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts/

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          files: artifacts/**/*
```

---

## What you'll get on a release

A GitHub Release with these five files attached:
```
creep-linux-x86_64
creep-linux-arm64
creep-windows-x86_64.exe
creep-windows-arm64.exe
creep-macos-arm64