checkAcknowledgements.yml

name: Check acknowledgements consistency
on:
  pull_request:
    paths:
      - news/*/acknowledgements.md

permissions:
  contents: read

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      with:
        fetch-depth: 0
    - name: Determine changed files
      id: changed-files
      run: |
        changedFiles=$(git diff --name-only --diff-filter=ACMR ${{ github.event.pull_request.base.sha }} ${{ github.event.pull_request.head.sha }} | grep acknowledgements.md$ | xargs)
        echo "Changed files: ${changedFiles}"
        echo "files=${changedFiles}" >> "$GITHUB_OUTPUT"
    - name: Check modified acknowledgements files
      uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
      id: collect-contributors
      with:
        script: |
          const fs = require('fs')
          const files = '${{ steps.changed-files.outputs.files }}'.trim().split(/\s+/)
          const nameIdRegex = /\[(?<name>[^\]]+)\]\(https:\/\/github\.com\/(?<id>[^\)/]+)\)/g
          for (file of files) {
            let lines = fs.readFileSync(file, {encoding: 'utf8'}).split(/\r?\n/)
            const contributorNames = new Map()
            for (line of lines) {
              for (match of line.matchAll(nameIdRegex)) {
                computeIfAbsent(contributorNames, match.groups.id, () => new Set()).add(match.groups.name)
              }
            }
            for (const [profile, names] of contributorNames) {
              if (names.size > 1) {
                core.setFailed("Multiple names found for profile '" + profile + "': " + Array.from(names).join(', '))
              }
            }
          }
          
          function computeIfAbsent(map, key, valueSupplier) {
            let value = map.get(key)
            if (!value) {
              value = valueSupplier()
              map.set(key, value)
            }
            return value
          }