.github/workflows/pr_checker_bot.yaml

# Copyright (c) 2026 Project CHIP Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

name: PR Checker Bot

on:
  workflow_dispatch:
    inputs:
      dry_run:
        description: 'Dry run (simulate merging and commenting)'
        required: false
        type: boolean
        default: false
  schedule:
    # Run every 6 hours (4 times a day)
    - cron: "0 */6 * * *"

jobs:
  pr_checker:
    name: PR Checker Bot
    runs-on: ubuntu-latest

    # Limit to main repo to avoid running on forks
    if: github.repository_owner == 'project-chip'

    steps:
      - name: Checkout
        uses: actions/checkout@v7

      - name: Setup Python
        uses: actions/setup-python@v7
        with:
          python-version: '3.12'

      - name: Setup pip modules
        run: |
          python3 -m venv venv
          venv/bin/pip3 install \
              click==8.1.7 \
              coloredlogs==15.0.1 \
              pyyaml==6.0.1 \
              pathspec==0.12.1 \
              pygithub==2.3.0 \
              && echo "DONE installing python prerequisites"

      - name: Run PR Checker Bot
        env:
          GH_TOKEN: ${{ secrets.MERGE_BOT_PAT || secrets.MATTER_PAT }}
          DRY_RUN_INPUT: ${{ github.event.inputs.dry_run }}
        run: |
          # If manual trigger, use the input dry_run value. Otherwise, default to false (actual run).
          DRY_RUN_FLAG=""
          if [ "${{ github.event_name }}" = "workflow_dispatch" ] && [ "$DRY_RUN_INPUT" = "true" ]; then
              DRY_RUN_FLAG="--dry-run"
          fi
          
          venv/bin/python3 scripts/tools/pr_checker_bot.py $DRY_RUN_FLAG