name: Premerge

on:
  pull_request:
    branches: [main]
  push:
    branches: [main]
  schedule:
    - cron: 0 0 1 * *

jobs:
  build-and-test:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout source
        uses: actions/checkout@v2

      - name: Install Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly-2020-09-27
          override: true

      - name: Build check
        uses: actions-rs/cargo@v1
        with:
          command: check

      - name: Tests
        uses: actions-rs/cargo@v1
        with:
          command: test

  linting:
    if: ${{ github.ref != 'main' }}
    runs-on: ubuntu-latest
    steps:
      - name: Checkout source
        uses: actions/checkout@v2

      - name: Install Rust toolchain
        uses: actions-rs/toolchain@v1
        with:
          toolchain: nightly-2020-09-27
          default: true
          components: rustfmt, clippy

      - name: format
        uses: actions-rs/cargo@v1
        with:
          command: fmt
          args: --all -- --check

      - name: clippy
        uses: actions-rs/clippy-check@v1
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          args: -- -D warnings