pycu 1.1.7

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name: Release

on:
  push:
    branches: [ main ]

permissions:
  contents: write

jobs:
  # --- 1. Read version from Cargo.toml; skip if this version was already released ---
  check-version:
    name: Check version
    runs-on: ubuntu-latest
    outputs:
      tag: ${{ steps.read.outputs.tag }}
      should_release: ${{ steps.check.outputs.should_release }}
    steps:
      - uses: actions/checkout@v6

      - name: Read version
        id: read
        run: |
          VERSION=$(grep '^version = ' Cargo.toml | head -1 | sed 's/version = "\(.*\)"/\1/')
          echo "tag=${VERSION}" >> "$GITHUB_OUTPUT"

      - name: Check if release already exists
        id: check
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          if gh release view "${{ steps.read.outputs.tag }}" \
               --repo "${{ github.repository }}" > /dev/null 2>&1; then
            echo "Release ${{ steps.read.outputs.tag }} already exists - skipping."
            echo "should_release=false" >> "$GITHUB_OUTPUT"
          else
            echo "should_release=true" >> "$GITHUB_OUTPUT"
          fi

  # --- 2. Run tests (gate the release on green tests) ----------------------------
  test:
    name: Test
    needs: check-version
    if: needs.check-version.outputs.should_release == 'true'
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - run: cargo test

  # --- 3. Build for every target platform ----------------------------------------
  build:
    name: Build ยท ${{ matrix.target }}
    needs: [ check-version, test ]
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - { target: x86_64-unknown-linux-musl,  os: ubuntu-latest,  archive: tar.gz }
          - { target: aarch64-unknown-linux-musl, os: ubuntu-latest,  archive: tar.gz }
          - { target: x86_64-apple-darwin,        os: macos-latest,   archive: tar.gz }
          - { target: aarch64-apple-darwin,       os: macos-latest,   archive: tar.gz }
          - { target: x86_64-pc-windows-msvc,     os: windows-latest, archive: zip }

    steps:
      - uses: actions/checkout@v6

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      - uses: Swatinem/rust-cache@v2
        with:
          key: ${{ matrix.target }}

      # Linux: cargo-zigbuild gives us static musl binaries for both x86_64 and
      # aarch64 without needing Docker or a cross-compiler toolchain.
      - name: Cache cargo-zigbuild
        if: runner.os == 'Linux'
        id: cache-zigbuild
        uses: actions/cache@v5
        with:
          path: ~/.cargo/bin/cargo-zigbuild
          key: cargo-zigbuild-${{ runner.os }}

      - name: Install Zig
        if: runner.os == 'Linux'
        run: pip install ziglang

      - name: Install cargo-zigbuild
        if: runner.os == 'Linux' && steps.cache-zigbuild.outputs.cache-hit != 'true'
        run: cargo install cargo-zigbuild --locked

      - name: Build (Linux)
        if: runner.os == 'Linux'
        run: cargo zigbuild --release --target ${{ matrix.target }}

      # macOS and Windows use standard cargo - the runner already has the right toolchain.
      - name: Build (macOS / Windows)
        if: runner.os != 'Linux'
        run: cargo build --release --target ${{ matrix.target }}

      # -- Package ---------------------------------------------------------------
      - name: Package (Unix)
        if: runner.os != 'Windows'
        run: |
          tar -czf pycu-${{ matrix.target }}.tar.gz \
            -C target/${{ matrix.target }}/release pycu

      - name: Package (Windows)
        if: runner.os == 'Windows'
        shell: pwsh
        run: |
          Compress-Archive `
            -Path "target\${{ matrix.target }}\release\pycu.exe" `
            -DestinationPath "pycu-${{ matrix.target }}.zip"

      - uses: actions/upload-artifact@v7
        with:
          name: pycu-${{ matrix.target }}
          path: pycu-${{ matrix.target }}.${{ matrix.archive }}
          if-no-files-found: error

  # --- 4. Create the GitHub Release and attach all binaries ----------------------
  release:
    name: Publish release
    needs: [ check-version, build ]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6

      - uses: actions/download-artifact@v8
        with:
          path: artifacts
          merge-multiple: true

      - name: Generate SHA256 checksums
        run: |
          cd artifacts
          sha256sum * > checksums.sha256
          cat checksums.sha256

      - name: Create GitHub Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release create "${{ needs.check-version.outputs.tag }}" \
            --title "${{ needs.check-version.outputs.tag }}" \
            --generate-notes \
            artifacts/*

  # --- 5. Publish to crates.io ------------------------------------------------
  publish-crate:
    name: Publish to crates.io
    needs: [ check-version, release ]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - name: Publish
        run: cargo publish --token ${{ secrets.CRATES_IO_TOKEN }}