.github/workflows/pr-update.yml

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name: Pull Request
on:
  # CAUTION! The pull_request_target is generally consider UNSAFE. This is because it will
  # run untrusted code on the GHA infra with access to secrets and elevated permissions. We must
  # not run any code from the pull request here. Instead, this workflow is for things like adding
  # comments or labels to the pull request.
  #
  # Read:
  # * https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows#pull_request_target
  # * https://securitylab.github.com/resources/github-actions-preventing-pwn-requests/
  pull_request_target:
    types: [opened, reopened, synchronize]
    branches:
      - trunk

jobs:
  add-labeler-labels:
    name: Labeler
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4
    - uses: actions/labeler@v5
      with:
        configuration-path: .github/configs/labeler.yml
    - name: check small label
      env:
        GH_TOKEN: ${{ github.token }}
        PR_NUM: ${{github.event.number}}
      run: |
        ./.github/scripts/label_small.sh

  add-triage-label:
    if: github.event.action == 'opened' || github.event.action == 'reopened'
    name: Add triage label
    runs-on: ubuntu-latest
    permissions:
      pull-requests: write
    steps:
      - name: Env
        run: printenv
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        # If the PR is from a non-committer, add triage label
      - if: |  
          github.event.pull_request.author_association != 'MEMBER' && 
          github.event.pull_request.author_association != 'OWNER'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          GH_REPO: ${{ github.repository }}
          NUMBER: ${{ github.event.pull_request.number }}
        run: gh pr edit "$NUMBER" --add-label triage