labeler.yml

name: 'PR Labeler'

on:
  workflow_run:
    workflows: ["save-pr-number-for-labeler"]
    types:
      - completed

permissions:
  actions: read    # for downloading artifacts
  contents: read   # for accessing repository contents
  pull-requests: write # for add labels to pull requests

jobs:
  label:
    runs-on: ubuntu-latest
    if: ${{ github.event.workflow_run.conclusion == 'success' }}

    timeout-minutes: 5
    steps:
      - name: Download PR number
        uses: dawidd6/action-download-artifact@246dbf436b23d7c49e21a7ab8204ca9ecd1fe615 # v2.27.0
        with:
          name: pr_number
          path: ./
          run_id: ${{ github.event.workflow_run.id }}

      - name: Read PR number
        id: pr_number
        run: echo "::set-output name=number::$(cat pr_number.txt)"

      - name: Add label
        run: gh pr edit "$NUMBER" --add-label "$LABELS"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
          NUMBER: ${{ steps.pr_number.outputs.number }}
          LABELS: type:iOS 🍎