name: CI

on:
  push:
    branches: [main]
  pull_request:

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.head.ref || github.ref_name }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: always
  RUSTFLAGS: -D warnings

jobs:
  check:
    name: fmt + clippy
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          components: rustfmt, clippy
      - uses: Swatinem/rust-cache@v2
      - run: cargo fmt --all -- --check
      - run: cargo clippy --all-targets --no-deps

  test:
    name: test
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - run: cargo test --all-targets
      - run: cargo test --doc

  embedded:
    name: no_std build (thumbv6m-none-eabi)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: thumbv6m-none-eabi
      - uses: Swatinem/rust-cache@v2
      - run: cargo build --lib --no-default-features --target thumbv6m-none-eabi
