addLabelOnPr.yaml

name: Add Label on Pull Request

on:  
  workflow_call:
    inputs:
      labelName:
        required: true
        type: string

env:
  GITHUB_APPS_ID: "${{ secrets.APPLICATION_ID }}"
  GITHUB_APPS_KEY: "${{ secrets.APPLICATION_PRIVATE_KEY }}"

jobs:
  addLabelOnPR:
    if: ${{ !github.event.pull_request.head.repo.fork }}
    runs-on: ubuntu-latest
    steps:
      - name: Generate a token
        id: generate_token
        uses: actions/create-github-app-token@46e4a501e119d39574a54e53a06c9a705efc55c9
        with:
          app-id: ${{ env.GITHUB_APPS_ID }}
          private-key: ${{ env.GITHUB_APPS_KEY }}

      - uses: actions/github-script@b7fb2001b410c9390cbe9e2c7d5cab7eefb7b29c
        name: Add Label To Pull Request
        env:
          APPTOKEN: ${{ steps.generate_token.outputs.token }}
        with:
          github-token: ${{ env.APPTOKEN }}
          script: |
            $labelName = "${{ inputs.labelName }}"
            console.log('PR Number : ' + context.issue.number + ', LabelName ' + $labelName)
            github.rest.issues.addLabels({
                issue_number: context.issue.number,
                owner: context.repo.owner,
                repo: context.repo.repo,
                labels: [$labelName]
            })