release.yml

name: Release

on:
    push:
        tags:
            - "v*"

permissions:
    contents: write

jobs:
    build:
        name: Build Release Binaries
        runs-on: ubuntu-latest

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

            - name: Setup Zig
              uses: goto-bus-stop/setup-zig@v2
              with:
                  version: 0.15.2

            - name: Cache Zig
              uses: actions/cache@v4
              with:
                  path: |
                      ~/.cache/zig
                      zig-cache
                  key: zig-cache-${{ runner.os }}-${{ hashFiles('build.zig', 'build.zig.zon') }}
                  restore-keys: |
                      zig-cache-${{ runner.os }}-

            - name: Build all platforms
              run: zig build release

            - name: Create source tarball
              run: |
                  VERSION=${GITHUB_REF#refs/tags/v}
                  git archive --format=tar.gz --prefix=PyOZ-${VERSION}/ -o zig-out/release/PyOZ-${VERSION}.tar.gz HEAD

            - name: Upload artifacts
              uses: actions/upload-artifact@v4
              with:
                  name: release-binaries
                  path: zig-out/release/*

    release:
        name: Create GitHub Release
        needs: build
        runs-on: ubuntu-latest
        permissions:
            contents: write

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

            - name: Download artifacts
              uses: actions/download-artifact@v4
              with:
                  name: release-binaries
                  path: release/

            - name: Get version from tag
              id: version
              run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT

            - name: Extract changelog for this version
              id: changelog
              run: |
                  VERSION=${GITHUB_REF#refs/tags/v}
                  # Extract the section between this version and the next version header (or end of file)
                  CHANGELOG=$(awk -v ver="$VERSION" '
                    BEGIN { found=0; output="" }
                    /^## \[/ {
                      if (found) exit
                      if (index($0, ver)) found=1
                      next
                    }
                    found { output = output $0 "\n" }
                    END { print output }
                  ' CHANGELOG.md)

                  # Write to file to preserve newlines
                  echo "$CHANGELOG" > changelog_section.txt

                  # Also set as output (escaped for GitHub Actions)
                  {
                    echo 'NOTES<<EOF'
                    cat changelog_section.txt
                    echo 'EOF'
                  } >> $GITHUB_OUTPUT

            - name: Create Release
              env:
                  GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
              run: |
                  VERSION=${{ steps.version.outputs.VERSION }}
                  PRERELEASE_FLAG=""
                  if [[ "$VERSION" == *alpha* ]] || [[ "$VERSION" == *beta* ]] || [[ "$VERSION" == *rc* ]]; then
                    PRERELEASE_FLAG="--prerelease"
                  fi

                  cat > release_notes.md << 'RELEASE_EOF'
                  ## What's New in v${{ steps.version.outputs.VERSION }}

                  ${{ steps.changelog.outputs.NOTES }}

                  ---

                  ## Installation

                  Download the binary for your platform and add it to your PATH:

                  | Platform | Binary |
                  |----------|--------|
                  | Linux x86_64 | `pyoz-x86_64-linux` |
                  | Linux ARM64 | `pyoz-aarch64-linux` |
                  | macOS x86_64 | `pyoz-x86_64-macos` |
                  | macOS ARM64 (Apple Silicon) | `pyoz-aarch64-macos` |
                  | Windows x86_64 | `pyoz-x86_64-windows.exe` |
                  | Windows ARM64 | `pyoz-aarch64-windows.exe` |

                  ## Source

                  Download `PyOZ-${{ steps.version.outputs.VERSION }}.tar.gz` for the source code.

                  ## Quick Start

                  ```bash
                  pyoz init mymodule
                  cd mymodule
                  pyoz build
                  pip install dist/*.whl
                  ```
                  RELEASE_EOF

                  gh release create "v${VERSION}" \
                    --title "PyOZ v${VERSION}" \
                    --notes-file release_notes.md \
                    $PRERELEASE_FLAG \
                    release/*

    pypi:
        name: Publish to PyPI
        runs-on: ubuntu-latest

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

            - name: Setup Zig
              uses: goto-bus-stop/setup-zig@v2
              with:
                  version: 0.15.2

            - name: Set up Python
              uses: actions/setup-python@v5
              with:
                  python-version: "3.12"

            - name: Cache Zig
              uses: actions/cache@v4
              with:
                  path: |
                      ~/.cache/zig
                      pypi/zig-cache
                  key: zig-pypi-cache-${{ runner.os }}-${{ hashFiles('pypi/build.zig', 'pypi/build.zig.zon') }}
                  restore-keys: |
                      zig-pypi-cache-${{ runner.os }}-

            - name: Build abi3 wheels for all platforms
              run: python pypi/build_wheels.py --dist-dir pypi/dist

            - name: Publish to PyPI
              uses: pypa/gh-action-pypi-publish@release/v1
              with:
                  password: ${{ secrets.PYPI_API_TOKEN }}
                  packages-dir: pypi/dist/
                  skip-existing: true