ci.yml

name: CI

on:
  merge_group:
  pull_request:
    types:
      - opened
      - reopened
      - synchronize
  push:
    branches:
      - main
    paths-ignore:
      - README.md

concurrency:
  group: ${{ github.workflow }}-${{ github.ref || github.event.pull_request.number || github.sha }}-${{ inputs.additional_key }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: always
  CARGO_REGISTRIES_CRATES_IO_PROTOCOL: sparse
  CARGO_PROFILE_DEV_CODEGEN_UNITS: 4
  CARGO_PROFILE_CHECK_ONLY_CODEGEN_UNITS: 4
  MSRV: 1.75.0

jobs:
  lint:
    strategy:
      fail-fast: false
      matrix:
        include:
          - target: aarch64-apple-darwin
            os: macos-14
          - target: x86_64-unknown-linux-gnu
            os: ubuntu-latest
          - target: x86_64-pc-windows-msvc
            os: windows-latest

    runs-on: ${{ matrix.os }}
    steps:
    - uses: actions/checkout@v4

    - run: rustup component add rustfmt clippy

    - name: Install tools
      uses: taiki-e/install-action@v2
      with:
        tool: cargo-hack

    - uses: Swatinem/rust-cache@v2

    - run: cargo fmt --all --check
    - run: cargo clippy --no-deps --all-targets
    - run: cargo hack --all --feature-powerset --no-dev-deps check

  msrv:
    strategy:
      fail-fast: false
      matrix:
        include:
          - target: aarch64-apple-darwin
            os: macos-14
          - target: x86_64-unknown-linux-gnu
            os: ubuntu-latest
          - target: x86_64-pc-windows-msvc
            os: windows-latest

    runs-on: ${{ matrix.os }}
    steps:
    - uses: actions/checkout@v4

    - run: |
        rustup toolchain install $MSRV --profile minimal
        rustup override set $MSRV
      shell: bash

    - run: cargo -vV

    - uses: Swatinem/rust-cache@v2

    - run: cargo check

  # Dummy job to have a stable name for the "all tests pass" requirement
  tests-pass:
    name: Tests pass
    needs:
    - lint
    - msrv
    if: always() # always run even if dependencies fail
    runs-on: ubuntu-latest
    steps:
    # fail if ANY dependency has failed or cancelled
    - if: "contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')"
      run: exit 1
    - run: exit 0