ci.yml

name: CI

on:
  pull_request:
    branches: [main]
  schedule:
    # runs 1 min after 2 or 1 AM (summer/winter) berlin time
    - cron: "1 0 * * *"
  merge_group:

env:
  CARGO_TERM_COLOR: always
  NO_STD_TARGET: thumbv7em-none-eabi # firmware uses atomics
  QEMU_TARGET: thumbv7m-none-eabi

jobs:
  host:
    strategy:
      matrix:
        os:
          - ubuntu-latest
          - macOS-latest
          - windows-latest
        toolchain:
          - "stable"
          - "1.76" # MSRV
    runs-on: ${{ matrix.os }}
    timeout-minutes: 20
    steps:
      - uses: actions/checkout@v4
      - name: Set Rust version
        uses: ./.github/actions/update-rust
        with:
          toolchain: ${{ matrix.toolchain }}
      - name: Install C libraries for tooling on ubuntu
        if: matrix.os == 'ubuntu-latest'
        run: sudo apt-get update && sudo apt-get install libudev-dev libusb-1.0-0-dev
      - name: Check that all crates that can be compiled for the host build, check that defmt compiles with different features, run all unit tests on the host
        run: cargo xtask -d test-host

  cross:
    strategy:
      matrix:
        toolchain:
          - "stable"
          - "1.76" # MSRV
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set Rust version
        uses: ./.github/actions/update-rust
        with:
          toolchain: ${{ matrix.toolchain }}
      - name: Install Rust targets, build defmt crates for no_std targets, build defmt dependent crates for cortex-m targets, build panic-probe with different features
        run: cargo xtask test-cross

  lint:
    strategy:
      matrix:
        toolchain:
          - "stable"
          - "1.76" # MSRV
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v4
      - name: Set Rust version
        uses: ./.github/actions/update-rust
        with:
          toolchain: ${{ matrix.toolchain }}
      - name: Run rustfmt & clippy
        run: cargo xtask test-lint

  ui:
    strategy:
      matrix:
        toolchain:
          - "stable"
          - "1.76" # MSRV
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Set Rust version
        uses: ./.github/actions/update-rust
        with:
          toolchain: ${{ matrix.toolchain }}
      - name: Install Rust stable, run all UI tests on the host
        run: cargo xtask test-ui

  mdbook:
    strategy:
      matrix:
        toolchain:
          - "stable"
          - "1.76" # MSRV
    runs-on: ubuntu-latest
    timeout-minutes: 10
    steps:
      - uses: actions/checkout@v4
      - name: Set Rust version
        uses: ./.github/actions/update-rust
        with:
          toolchain: ${{ matrix.toolchain }}
      - name: Setup mdBook
        uses: peaceiris/actions-mdbook@v1
        with:
          mdbook-version: latest
      - name: Run book tests
        run: cargo xtask test-book

  qemu-snapshot:
    strategy:
      matrix:
        toolchain:
          - stable
          - "1.76" # MSRV
          - nightly # some tests use unstable features
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Use the latest ${{ matrix.toolchain }} release
        uses: ./.github/actions/update-rust
        with:
          toolchain: ${{ matrix.toolchain }}
      - name: Install QEMU_TARGET
        run: rustup target add ${{ env.QEMU_TARGET }}
      - name: Install dependencies
        run: sudo apt-get update && sudo apt-get install qemu qemu-system-arm
      - name: Run QEMU snapshot tests
        run: cargo xtask test-snapshot

  backcompat:
    strategy:
      matrix:
        toolchain:
          - "stable"
          - "1.76" # MSRV
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Set Rust version
        uses: ./.github/actions/update-rust
        with:
          toolchain: ${{ matrix.toolchain }}
      - name: Install QEMU_TARGET
        run: rustup target add ${{ env.QEMU_TARGET }}
      - name: Install dependencies
        run: sudo apt-get update && sudo apt-get install qemu qemu-system-arm
      - name: Run backward compatibility test
        run: cargo xtask test-backcompat