name: ci

on:
  push:
  pull_request:

jobs:
  buf:
    runs-on: docker
    container:
      image: bufbuild/buf:latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: buf lint
        run: buf lint

      - name: buf breaking (against main)
        run: buf breaking --against '.git#branch=main'
        if: github.ref != 'refs/heads/main'