# Maintained in https://github.com/coreos/repo-templates
# Do not edit downstream.

name: Rust
on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
permissions:
  contents: read

# don't waste job slots on superseded code
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  CARGO_TERM_COLOR: always
  # Pinned toolchain for linting
  ACTIONS_LINTS_TOOLCHAIN: 1.84.1

jobs:
  tests-stable:
    name: Tests, stable toolchain
    runs-on: ubuntu-latest
    container: quay.io/coreos-assembler/fcos-buildroot:testing-devel
    steps:
      - name: Check out repository
        uses: actions/checkout@v4
      - name: Install toolchain
        uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: stable
      - name: Cache build artifacts
        uses: Swatinem/rust-cache@v2
      - name: cargo build
        run: cargo build --all-targets
      - name: cargo test
        run: cargo test --all-targets
  tests-release-stable:
    name: Tests (release), stable toolchain
    runs-on: ubuntu-latest
    container: quay.io/coreos-assembler/fcos-buildroot:testing-devel
    steps:
      - name: Check out repository
        uses: actions/checkout@v4
      - name: Install toolchain
        uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: stable
      - name: Cache build artifacts
        uses: Swatinem/rust-cache@v2
      - name: cargo build (release)
        run: cargo build --all-targets --release
      - name: cargo test (release)
        run: cargo test --all-targets --release
  tests-release-msrv:
    name: Tests (release), minimum supported toolchain
    runs-on: ubuntu-latest
    container: quay.io/coreos-assembler/fcos-buildroot:testing-devel
    steps:
      - name: Check out repository
        uses: actions/checkout@v4
      - name: Detect crate MSRV
        run: |
          msrv=$(cargo metadata --format-version 1 --no-deps | \
              jq -r '.packages[0].rust_version')
          echo "Crate MSRV: $msrv"
          echo "MSRV=$msrv" >> $GITHUB_ENV
      - name: Install toolchain
        uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: ${{ env.MSRV }}
      - name: Cache build artifacts
        uses: Swatinem/rust-cache@v2
      - name: cargo build (release)
        run: cargo build --all-targets --release
      - name: cargo test (release)
        run: cargo test --all-targets --release
  linting:
    name: Lints, pinned toolchain
    runs-on: ubuntu-latest
    container: quay.io/coreos-assembler/fcos-buildroot:testing-devel
    steps:
      - name: Check out repository
        uses: actions/checkout@v4
      - name: Install toolchain
        uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: ${{ env.ACTIONS_LINTS_TOOLCHAIN }}
          components: rustfmt, clippy
      - name: Cache build artifacts
        uses: Swatinem/rust-cache@v2
      - name: cargo fmt (check)
        run: cargo fmt -- --check -l
      - name: cargo clippy (warnings)
        run: cargo clippy --all-targets -- -D warnings
  tests-other-channels:
    name: Tests, unstable toolchain
    runs-on: ubuntu-latest
    container: quay.io/coreos-assembler/fcos-buildroot:testing-devel
    continue-on-error: true
    strategy:
      matrix:
        channel: [beta, nightly]
    steps:
      - name: Check out repository
        uses: actions/checkout@v4
      - name: Install toolchain
        uses: dtolnay/rust-toolchain@v1
        with:
          toolchain: ${{ matrix.channel }}
      - name: Cache build artifacts
        uses: Swatinem/rust-cache@v2
      - name: cargo build
        run: cargo build --all-targets
      - name: cargo test
        run: cargo test --all-targets