ci.yml

name: Continuous integration

on: [push, pull_request]

jobs:
  build:
    name: Build
    strategy:
      fail-fast: false
      matrix:
        platform: [ubuntu-latest, macos-latest, windows-latest]
        toolchain: [stable]
    runs-on: ${{ matrix.platform }}

    steps:
      - name: Checkout sources
        uses: actions/checkout@v4

      - name: Cache dependencies & build outputs
        uses: actions/cache@v4
        with:
          path: ~/.cargo
          key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}

      - name: Install Rust toolchain
        uses: dtolnay/rust-toolchain@master
        with:
          toolchain: ${{ matrix.toolchain }}
          components: rustfmt, clippy

      - name: Check code format
        run: cargo fmt --all -- --check

      - name: Code lint with default features
        run: cargo clippy --all-targets -- -D warnings

      - name: Code lint without default features
        run: cargo clippy --no-default-features --workspace -- -D warnings

      - name: Code lint with all features
        run: cargo clippy --no-default-features --workspace --all-features -- -D warnings

      - name: Test with default features
        run: cargo test --all-features

      - name: Test with without default features
        run: cargo test --no-default-features

      - name: Test with all features
        run: cargo test --all-features

  build-no-std:
    name: Build no_std
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Sources
        uses: actions/checkout@v4

      - name: Install Rust Toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: thumbv6m-none-eabi

      - name: Build
        run: cargo build --no-default-features --target thumbv6m-none-eabi

  build-no-std-serde:
    name: Build no_std, but with `serde` feature enabled
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Sources
        uses: actions/checkout@v4

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

      - name: Build
        # `thumbv6m-none-eabi` can't be used as Serde doesn't compile there.
        run: cargo build --no-default-features --features serde

  check-lockfile:
    name: Make sure the lockfile is up-to-date
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Sources
        uses: actions/checkout@v4

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

      - name: Error if checked-in lockfile is not up-to-date
        run: cargo build --locked