ci.yml

on:
  push:
    branches:
      - main
  pull_request:

name: CI

jobs:
  lint:
    name: Lint
    runs-on: ubuntu-latest
    env:
      RUSTFLAGS: -D warnings
    steps:
      - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4.1.4
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt, clippy
      - uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2.7.3
      - name: Install just, cargo-hack, and cargo-sync-rdme
        uses: taiki-e/install-action@v2
        with:
          tool: just,cargo-hack,cargo-sync-rdme
      - name: Lint (clippy)
        run: just powerset clippy --all-targets
      - name: Lint (rustfmt)
        run: cargo xfmt --check
      - name: Run rustdoc
        run: just rustdoc
      - name: Install nightly toolchain for cargo-sync-rdme
        uses: dtolnay/rust-toolchain@nightly
      - name: Regenerate readmes
        run: just generate-readmes
      - name: Check for differences
        run: git diff --exit-code

  build-and-test:
    name: Build and test
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest]
      fail-fast: false
    env:
      RUSTFLAGS: -D warnings
      CARGO_TERM_COLOR: always
    steps:
      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
      - name: Install toolchain in rust-toolchain.toml
        # GitHub Actions has an older rustup as of 2025-03-07 which doesn't accept
        # `rustup toolchain install` with no arguments. Update rustup first.
        run: rustup self update && rustup toolchain install
      - uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2
      - uses: taiki-e/install-action@cargo-hack
      - uses: taiki-e/install-action@just
      - uses: taiki-e/install-action@nextest
      - name: Build
        run: just powerset build
      - name: Run tests
        run: just powerset nextest run
      - name: Doctests
        run: just powerset test --doc
    
  build-and-test-msrv:
    name: Build and test (MSRV)
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest]
        # 1.81 is the MSRV
        rust-version: ["1.81"]
      fail-fast: false
    env:
      RUSTFLAGS: -D warnings
    steps:
      - uses: actions/checkout@eef61447b9ff4aafe5dcd4e0bbf5d482be7e7871 # v4
      - uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.rust-version }}
      - uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2
      - uses: taiki-e/install-action@cargo-hack
      - uses: taiki-e/install-action@just
      - uses: taiki-e/install-action@nextest
      - name: Build
        run: just powerset build
      # We don't run ui_test on the MSRV since compiler output varies by version.
      - name: Test without ui_test
        run: just powerset nextest run -E 'not binary(ui_test)'
      - name: Doctests
        run: just powerset test --doc