release-python.yml

name: Release Python

on:
  workflow_dispatch:
    inputs:
      # Latest commit to include with the release. If omitted, use the latest commit on the main branch.
      sha:
        description: Commit SHA
        type: string
      # Create the sdist and build the wheels, but do not publish to PyPI / GitHub.
      dry-run:
        description: Dry run
        type: boolean
        default: false

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  PYTHON_VERSION: '3.8'
  CARGO_INCREMENTAL: 0
  CARGO_NET_RETRY: 10
  RUSTUP_MAX_RETRIES: 10

defaults:
  run:
    shell: bash

jobs:
  create-sdist:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        package: [polars, polars-lts-cpu, polars-u64-idx]

    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ inputs.sha }}

      # Avoid potential out-of-memory errors
      - name: Set swap space for Linux
        uses: pierotofy/set-swap-space@master
        with:
          swap-size-gb: 10

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Fix README symlink
        run: rm py-polars/README.md && cp README.md py-polars/README.md

      - name: Install yq
        if: matrix.package != 'polars'
        run: pip install yq
      - name: Update package name
        if: matrix.package != 'polars'
        run: tomlq -i -t ".project.name = \"${{ matrix.package }}\"" py-polars/pyproject.toml
      - name: Add bigidx feature
        if: matrix.package == 'polars-u64-idx'
        run: tomlq -i -t '.dependencies.polars.features += ["bigidx"]' py-polars/Cargo.toml

      - name: Create source distribution
        uses: PyO3/maturin-action@v1
        with:
          command: sdist
          args: >
            --manifest-path py-polars/Cargo.toml
            --out dist

      - name: Test sdist
        run: |
          TOOLCHAIN=$(grep -oP 'channel = "\K[^"]+' rust-toolchain.toml)
          rustup default $TOOLCHAIN
          pip install --force-reinstall --verbose dist/*.tar.gz
          python -c 'import polars'

      - name: Upload sdist
        uses: actions/upload-artifact@v3
        with:
          name: sdist
          path: dist/*.tar.gz

  build-wheels:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        package: [polars, polars-lts-cpu, polars-u64-idx]
        os: [ubuntu-latest, macos-latest, windows-32gb-ram]
        architecture: [x86-64, aarch64]
        exclude:
          - os: windows-32gb-ram
            architecture: aarch64

    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ inputs.sha }}

      # Avoid potential out-of-memory errors
      - name: Set swap space for Linux
        if: matrix.os == 'ubuntu-latest'
        uses: pierotofy/set-swap-space@master
        with:
          swap-size-gb: 10

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: ${{ env.PYTHON_VERSION }}

      - name: Fix README symlink
        run: rm py-polars/README.md && cp README.md py-polars/README.md

      - name: Install yq
        if: matrix.package != 'polars'
        run: pip install yq
      - name: Update package name
        if: matrix.package != 'polars'
        run: tomlq -i -t ".project.name = \"${{ matrix.package }}\"" py-polars/pyproject.toml
      - name: Add bigidx feature
        if: matrix.package == 'polars-u64-idx'
        run: tomlq -i -t '.dependencies.polars.features += ["bigidx"]' py-polars/Cargo.toml

      - name: Set RUSTFLAGS for x86-64
        if: matrix.architecture == 'x86-64' && matrix.package != 'polars-lts-cpu' && matrix.os != 'macos-latest'
        run: echo "RUSTFLAGS=-C target-feature=+sse3,+ssse3,+sse4.1,+sse4.2,+popcnt,+avx,+avx2,+fma,+bmi1,+bmi2,+lzcnt" >> $GITHUB_ENV
      - name: Set RUSTFLAGS for x86-64 MacOS
        if: matrix.architecture == 'x86-64' && matrix.package != 'polars-lts-cpu' && matrix.os == 'macos-latest'
        run: echo "RUSTFLAGS=-C target-feature=+sse3,+ssse3,+sse4.1,+sse4.2,+popcnt,+avx,+fma" >> $GITHUB_ENV
      - name: Set RUSTFLAGS for x86-64 LTS CPU
        if: matrix.architecture == 'x86-64' && matrix.package == 'polars-lts-cpu'
        run: echo "RUSTFLAGS=-C target-feature=+sse3,+ssse3,+sse4.1,+sse4.2,+popcnt --cfg use_mimalloc" >> $GITHUB_ENV

      - name: Set Rust target for aarch64
        if: matrix.architecture == 'aarch64'
        id: target
        run: |
          TARGET=${{ matrix.os == 'macos-latest' && 'aarch64-apple-darwin' || 'aarch64-unknown-linux-gnu'}}
          echo "target=$TARGET" >> $GITHUB_OUTPUT

      - name: Set jemalloc for aarch64 Linux
        if: matrix.architecture == 'aarch64' && matrix.os == 'ubuntu-latest'
        run: |
          echo "JEMALLOC_SYS_WITH_LG_PAGE=16" >> $GITHUB_ENV

      - name: Build wheel
        uses: PyO3/maturin-action@v1
        with:
          command: build
          target: ${{ steps.target.outputs.target }}
          args: >
            --release
            --manifest-path py-polars/Cargo.toml
            --out dist
          manylinux: auto

      - name: Upload wheel
        uses: actions/upload-artifact@v3
        with:
          name: wheels
          path: dist/*.whl

  publish-to-pypi:
    needs: [create-sdist, build-wheels]
    environment:
      name: release-python
      url: https://pypi.org/project/polars
    runs-on: ubuntu-latest
    permissions:
      id-token: write

    steps:
      - name: Download sdist
        uses: actions/download-artifact@v3
        with:
          name: sdist
          path: dist

      - name: Download wheels
        uses: actions/download-artifact@v3
        with:
          name: wheels
          path: dist

      - name: Publish to PyPI
        if: inputs.dry-run == false
        uses: pypa/gh-action-pypi-publish@release/v1
        with:
          verbose: true

  publish-to-github:
    needs: publish-to-pypi
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ inputs.sha }}

      - name: Download sdist
        uses: actions/download-artifact@v3
        with:
          name: sdist
          path: dist

      - name: Get version from Cargo.toml
        id: version
        working-directory: py-polars
        run: |
          VERSION=$(grep -m 1 -oP 'version = "\K[^"]+' Cargo.toml)
          if [[ "$VERSION" == *"-"* ]]; then
            IS_PRERELEASE=true
          else
            IS_PRERELEASE=false
          fi
          echo "version=$VERSION" >> $GITHUB_OUTPUT
          echo "is_prerelease=$IS_PRERELEASE" >> $GITHUB_OUTPUT

      - name: Create GitHub release
        id: github-release
        uses: release-drafter/release-drafter@v5
        with:
          config-name: release-drafter-python.yml
          name: Python Polars ${{ steps.version.outputs.version }}
          tag: py-${{ steps.version.outputs.version }}
          version: ${{ steps.version.outputs.version }}
          prerelease: ${{ steps.version.outputs.is_prerelease }}
          commitish: ${{ inputs.sha }}
          disable-autolabeler: true
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Upload sdist to GitHub release
        run: gh release upload $TAG $FILES --clobber
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ steps.github-release.outputs.tag_name }}
          FILES: dist/polars-*.tar.gz

      - name: Publish GitHub release
        if: inputs.dry-run == false
        run: gh release edit $TAG --draft=false
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          TAG: ${{ steps.github-release.outputs.tag_name }}