build.yml

name: Build wheels

on:
  push:
    tags: '*'
  pull_request: ~

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: false

jobs:
  generate_wheels_matrix:
    name: Generate wheels matrix
    runs-on: ubuntu-latest
    outputs:
      include: ${{ steps.set-matrix.outputs.include }}
      mypy_version: ${{ steps.mypy-version.outputs.mypy_version }}
      mypy_sha: ${{ steps.mypy-version.outputs.mypy_sha }}
      tag_version: ${{ steps.tag-version.outputs.tag_version }}
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive
      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.11"
      - name: Install cibuildwheel and pypyp
        run: |
          pipx install cibuildwheel==2.19.2
          pipx install pypyp==1
      - id: set-matrix
        run: |
          MATRIX=$(
            {
              cibuildwheel --config-file=cibuildwheel.toml --print-build-identifiers --platform linux mypy \
              | pyp 'json.dumps({"only": x, "os": "ubuntu-latest"})' \
              && cibuildwheel --config-file=cibuildwheel.toml --print-build-identifiers --platform macos mypy \
              | pyp 'json.dumps({"only": x, "os": "macos-14"})' \
              && cibuildwheel --config-file=cibuildwheel.toml --print-build-identifiers --platform windows mypy \
              | pyp 'json.dumps({"only": x, "os": "windows-latest"})'
            } | pyp 'json.dumps(list(map(json.loads, lines)))'
          )
          echo "include=$MATRIX" | tee -a $GITHUB_OUTPUT
        env:
          CIBW_ARCHS_LINUX: x86_64
          CIBW_ARCHS_MACOS: x86_64 arm64
          CIBW_ARCHS_WINDOWS: AMD64
      - name: Get mypy version
        id: mypy-version
        run: |
          cd mypy
          mypy_version=$(python -c "from mypy.version import __version__; print(__version__)")
          mypy_sha=$(python -c "from mypy.git import git_revision as rev; print(rev('.').decode('utf-8'))")
          echo "mypy_version: ${mypy_version}"
          echo "mypy_version=${mypy_version}" >> $GITHUB_OUTPUT
          echo "mypy_sha: ${mypy_sha}"
          echo "mypy_sha=${mypy_sha}" >> $GITHUB_OUTPUT
      - name: Get version tag
        id: tag-version
        run: |
          if [[ "${{ github.event_name }}" == "push" ]]; then
            echo "github_ref: ${{ github.ref }}"
            tag_version=$(echo "${{ github.ref }}" | cut -d "/" -f3)
            echo "tag_version: ${tag_version}"
            mypy_base=$(echo "${{ steps.mypy-version.outputs.mypy_version }}" | cut -d "+" -f1)
            echo "mypy_base: ${mypy_base}"
            if [[ "${tag_version}" != "${mypy_base}"* ]]; then
              echo "Base tag_version does not match base mypy_version!"
              exit 1
            fi
          else
            echo "Pull request or workflow dispatch"
            echo "Set placeholder version"
            tag_version=1.0.0
            echo "tag_version: ${tag_version}"
          fi
          echo "tag_version=${tag_version}" >> $GITHUB_OUTPUT

  build_wheels:
    name: Build ${{ matrix.only }}
    needs: generate_wheels_matrix
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include: ${{ fromJson(needs.generate_wheels_matrix.outputs.include) }}
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive
      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.11"
      - name: Modify setup.py
        run: |
          pip install -U -r requirements.txt
          python scripts/modify_setup.py ${{ needs.generate_wheels_matrix.outputs.tag_version }}
      - uses: pypa/cibuildwheel@v2.19.2
        with:
          config-file: cibuildwheel.toml
          package-dir: mypy
          only: ${{ matrix.only }}
      - uses: actions/upload-artifact@v4
        with:
          name: dist-${{ matrix.only }}
          path: ./wheelhouse/*.whl
          overwrite: true

  build_sdist_python_wheel:
    name: sdist and python wheel
    needs: generate_wheels_matrix
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          submodules: recursive
      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.11"
      - name: Modify setup.py
        run: |
          pip install -U -r requirements.txt
          python scripts/modify_setup.py ${{ needs.generate_wheels_matrix.outputs.tag_version }}
      - name: Build sdist and wheel
        run: |
          cd mypy
          pip install --upgrade setuptools build
          python -m build
      - uses: actions/upload-artifact@v4
        with:
          name: dist-sdist_python_wheel
          path: |
            mypy/dist/*.whl
            mypy/dist/*.tar.gz
          overwrite: true

  release:
    name: Create release and upload assets
    needs:
      - generate_wheels_matrix
      - build_wheels
      - build_sdist_python_wheel
    runs-on: ubuntu-latest
    environment:
      name: Release
    if: github.event_name == 'push' && startsWith(github.ref, 'refs/tags/')
    permissions:
      contents: write  # Required to upload release assets
    steps:
      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          pattern: dist-*
          path: dist
          merge-multiple: true
      - name: Release
        uses: actions/github-script@v7
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            // https://github.com/actions/upload-release-asset/issues/47
            const fs = require('fs').promises;
            const { repo: { owner, repo }, sha } = context;
            const tagName = process.env.GITHUB_REF.split("/").pop();
            const body = (
              'Tracking mypy version: `${{ needs.generate_wheels_matrix.outputs.mypy_version }}`'
              + '\n\n' + 'https://github.com/python/mypy/commit/${{ needs.generate_wheels_matrix.outputs.mypy_sha }}'
            );

            console.log('environment', process.versions);
            console.log({ owner, repo, sha });

            const release = await github.rest.repos.createRelease({
              owner, repo,
              tag_name: tagName,
              target_commitish: sha,
              name: tagName,
              body: body
            });

            console.log('created release', { release });

            for (let file of await fs.readdir('dist')) {
              console.log('uploading', file);

              await github.rest.repos.uploadReleaseAsset({
                owner, repo,
                release_id: release.data.id,
                name: file,
                data: await fs.readFile(`./dist/${file}`)
              });
            }

  upload:
    name: Upload release to PyPI
    needs:
      - release
    runs-on: ubuntu-latest
    environment:
      name: PyPI
      url: https://pypi.org/project/mypy-dev/
    steps:
      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          pattern: dist-*
          path: dist
          merge-multiple: true
      - uses: actions/setup-python@v5
        name: Install Python
        with:
          python-version: "3.11"
      - name: Install twine
        run: |
          pip install twine
      - name: Upload to PyPI
        env:
          TWINE_REPOSITORY: pypi
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
        run: |
          twine upload --verbose dist/*