validate-readme.yml

name: Validate README

on:
  pull_request:
    branches:
      - master
  merge_group:

jobs:
  validate:
    name: README should be updated
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-go@v4
        with:
          go-version: "^1.20"

      - name: update README
        run: ./.ci/update-readme.sh
      - name: validate README wasn't updated
        run: |
          if ! git diff-index --quiet HEAD; then
            # Find the line numbers of the start and end markers
            start_line=$(grep -n '<!-- command-line:start -->' README.md | cut -d ":" -f 1)
            end_line=$(grep -n '<!-- command-line:end -->' README.md | cut -d ":" -f 1)
            
            echo "::error file=README.md,title=Outdated README,line=$start_line,endLine=$end_line::README.md is outdated, please run ./.ci/update-readme.sh"
            exit 1
          fi