name: CI

on:
  workflow_dispatch:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

env:
  CARGO_TERM_COLOR: always

jobs:
  build:
    name: ${{ matrix.rust }}
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        rust:
          - 1.31.0
          - stable
          - beta
          - nightly
    steps:
    - uses: actions/checkout@v4
    - uses: dtolnay/rust-toolchain@master
      with:
        toolchain: ${{ matrix.rust }}
    - name: Use MSRV Cargo.lock
      run: cp Cargo.lock.msrv Cargo.lock
      if: matrix.rust == '1.31.0'
    - name: cargo fmt --all -- --check
      run: |
        rustup component add rustfmt-preview
        cargo fmt --all -- --check
      if: matrix.rust == 'stable'
    - run: |
        cargo build --verbose
    - run: |
        cargo test --verbose