label-remove-conflict.yml

name: Auto Remove "stale" label

on:
  pull_request:
    branches:
      - develop
      - '4.*'

jobs:
  check-conflict:
    runs-on: ubuntu-22.04
    permissions:
      contents: read
      pull-requests: write

    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Get PR Detail
        id: PR-detail
        run: echo "detail=$(gh pr view $PR_URL --json mergeable,url,labels,author)" >> $GITHUB_OUTPUT
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_URL: ${{ github.event.pull_request.html_url }}

      - name: 'Remove label "stale"'
        env:
          PR_DETAIL: ${{ steps.PR-detail.outputs.detail }}
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_URL: ${{ github.event.pull_request.html_url }}
        run: |

          # MERGEABLE with 'stale' label
          if [ "$(echo $PR_DETAIL | jq -r '.mergeable')" == "MERGEABLE" ] && \
             [ "$(echo $PR_DETAIL | jq -r '.labels[] | select(.name == "stale")')" != "" ]; then
             # remove 'stale' label
             gh pr edit $PR_URL --remove-label "stale"
          fi