name: CI

on:
  pull_request:
  push:
    branches:
      - staging
      - trying

jobs:
  msrv:
    name: Rust MSRV
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: dtolnay/rust-toolchain@1.36.0
      - run: cargo check --no-default-features
      - run: cargo check --no-default-features --features "use_alloc"
      - run: cargo check

  stable:
    name: Rust Stable
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: dtolnay/rust-toolchain@stable
      - run: cargo check --no-default-features
      - run: cargo check --no-default-features --features "use_alloc"
      - run: cargo test

  # https://github.com/rust-lang/crater/blob/9ab6f9697c901c4a44025cf0a39b73ad5b37d198/.github/workflows/bors.yml#L125-L149
  end-success:
    name: bors build finished
    if: success()
    runs-on: ubuntu-latest
    needs: [msrv,stable]

    steps:
      - name: Mark the job as successful
        run: exit 0

  end-failure:
    name: bors build finished
    if: "!success()"
    runs-on: ubuntu-latest
    needs: [msrv,stable]

    steps:
      - name: Mark the job as a failure
        run: exit 1