featrs 0.3.0

Feature engineering library for Rust, inspired by scikit-learn
Documentation 
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name: CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

env:
  CARGO_TERM_COLOR: always

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: ${{ github.event_name == 'pull_request' }}

jobs:
  build-test:
    name: Build & Test (${{ matrix.os }})
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
    runs-on: ${{ matrix.os }}

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust (stable)
        uses: dtolnay/rust-toolchain@stable
        with:
          components: clippy, rustfmt

      - name: Cache cargo
        uses: Swatinem/rust-cache@v2
        with:
          key: stable-${{ matrix.os }}

      - name: Build
        run: cargo build

      - name: Clippy
        run: cargo clippy --all-targets -- -D warnings

      - name: Format
        run: cargo fmt --check

      - name: Test
        run: cargo test

  docs:
    name: Rustdoc
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust (stable)
        uses: dtolnay/rust-toolchain@stable

      - name: Cache cargo
        uses: Swatinem/rust-cache@v2
        with:
          key: stable-docs

      - name: Check docs
        env:
          RUSTDOCFLAGS: "-D warnings"
        run: cargo doc --no-deps

  msrv:
    name: MSRV (1.91)
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust (1.91.0)
        uses: dtolnay/rust-toolchain@1.91.0
        with:
          components: clippy

      - name: Cache cargo
        uses: Swatinem/rust-cache@v2
        with:
          key: msrv-1.91

      - name: Check build on MSRV
        run: cargo +1.91.0 build

      - name: Test on MSRV
        run: cargo +1.91.0 test

  audit:
    name: Security audit
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust (stable)
        uses: dtolnay/rust-toolchain@stable

      - name: Cache cargo
        uses: Swatinem/rust-cache@v2
        with:
          key: stable-audit

      - name: Generate lockfile
        run: cargo generate-lockfile

      - name: Install cargo-audit
        run: cargo install cargo-audit --locked

      - name: Audit
        # quick-xml RUSTSECs are transitive via polars–io → object_store.
        # Tracked: re-evaluate when polars bumps its quick-xml dependency.
        run: cargo audit --ignore RUSTSEC-2026-0194 --ignore RUSTSEC-2026-0195

  publish-dry-run:
    name: Publish (dry-run)
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v4

      - name: Install Rust (stable)
        uses: dtolnay/rust-toolchain@stable

      - name: Cache cargo
        uses: Swatinem/rust-cache@v2
        with:
          key: stable-publish

      - name: cargo publish --dry-run
        run: cargo publish --dry-run --allow-dirty