rust.yml

name: Rust

on:
  push:
    branches: [main]
  pull_request:

jobs:

  # complete:
  #   if: always()
  #   needs: [fmt, build-and-test]
  #   runs-on: ubuntu-latest
  #   steps:
  #   - if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
  #     run: exit 1

  fmt:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - run: rustup update
    - run: cargo fmt --all --check

  build-and-test:
    strategy:
      matrix:
        rust: [msrv, latest]
        sys:
        - os: ubuntu-latest
          target: wasm32-unknown-unknown
          test: false
        - os: ubuntu-latest
          target: x86_64-unknown-linux-gnu
          test: true
    runs-on: ${{ matrix.sys.os }}
    steps:
    - uses: actions/checkout@v3
    - uses: stellar/actions/rust-cache@main
    - name: Use the minimum supported Rust version
      if: matrix.rust == 'msrv'
      run: |
        msrv="$(cargo metadata --format-version 1 --no-deps | jq -r '.packages | map(.rust_version) | map(values) | min')"
        rustup override set $msrv
        rustup component add clippy --toolchain $msrv
    - name: Error on warnings and clippy checks
      # Only error on warnings and checks for the msrv, because new versions of
      # Rust will frequently add new warnings and checks.
      if: matrix.rust == 'msrv'
      run: echo RUSTFLAGS='-Wclippy::all -Wclippy::pedantic' >> $GITHUB_ENV
      # TODO: Deny warnings when the warnings have been cleaned up.
      # run: echo RUSTFLAGS='-Dwarnings -Wclippy::all -Wclippy::pedantic' >> $GITHUB_ENV
    - run: rustup update
    - run: cargo version
    - run: rustup target add ${{ matrix.sys.target }}
    - run: cargo clippy --target ${{ matrix.sys.target }} --lib
    - if: matrix.sys.target != 'wasm32-unknown-unknown'
      run: cargo clippy --target ${{ matrix.sys.target }} --bins --tests --examples --benches
    - run: cargo build --target ${{ matrix.sys.target }}
    - if: matrix.sys.test
      run: cargo test --target ${{ matrix.sys.target }}