name: Buf lint

on:
  pull_request:
    branches:
      - master

jobs:
  lint:
    runs-on: ubuntu-20.04
    steps:
      - uses: actions/checkout@v2
      - uses: wizhi/setup-buf@v1
        with:
          version: 0.20.5
      - run: buf check lint

  breaking:
    runs-on: ubuntu-20.04
    steps:
      - name: Setup buf
        uses: wizhi/setup-buf@v1
        with:
          version: 0.20.5
      - name: Check out ref code
        uses: actions/checkout@v2
        with:
          ref: ${{ github.base_ref }}
          path: baseref
      - run: cd baseref && buf image build -o image.bin

      - name: Check out code
        uses: actions/checkout@v2
        with:
          path: prclone
      - run: cd prclone && buf check breaking --against-input ../baseref/image.bin