auto_bump_pr_merge.yml

name: Auto Merge

on:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  BUMP:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Define allowed and ignored files
        run: |
          ALLOWED_FILES="package.json package.xml CMakeLists.txt CHANGELOG.rst setup.py"
          echo "ALLOWED_FILES=$ALLOWED_FILES" >> $GITHUB_ENV

          IGNORED_FILES=".github .jenkins"
          echo "IGNORED_FILES=$IGNORED_FILES" >> $GITHUB_ENV

      - name: Check if PR should be merged
        run: |
          PR_TITLE="${{ github.event.pull_request.title }}"
          BASE_BRANCH="${{ github.event.pull_request.base.ref }}"
          HEAD_BRANCH="${{ github.event.pull_request.head.ref }}"
          CHANGED_FILES=$(gh pr diff ${{ github.event.pull_request.number }} --name-only)

          mapfile -t change_files < <(echo "$CHANGED_FILES")

          ALLOWED_FILES_STRING="${{ env.ALLOWED_FILES }}"
          IFS=' ' read -r -a allowed_files <<< "$ALLOWED_FILES_STRING"

          IGNORED_FILES_STRING="${{ env.IGNORED_FILES }}"
          IFS=' ' read -r -a ignored_files <<< "$IGNORED_FILES_STRING"

          filtered_change_files=()
          for change_file in "${change_files[@]}"; do
            exclude_item=false
            for ignored_file in "${ignored_files[@]}"; do
              if [[ "$change_file" == *"$ignored_file"* ]]; then
                exclude_item=true
                break;
              fi
            done
            if [ "$exclude_item" = false ]; then
              filtered_change_files+=("$change_file")
            fi
          done

          only_allowed_files=true
          for filtered_change_file in "${filtered_change_files[@]}"; do
            allowed_change_file=false
            filtered_change_file_name=$(basename "$filtered_change_file")
            for allowed_file in "${allowed_files[@]}"; do
              if [ "$filtered_change_file_name" = "$allowed_file" ]; then
                allowed_change_file=true
                break;
              fi
            done
            if [ "$allowed_change_file" = false ]; then
              only_allowed_files=false
              break;
            fi
          done

          if [[ "$BASE_BRANCH" == "main" && ( "$HEAD_BRANCH" == "develop" || "$HEAD_BRANCH" == "tote" ) && "$only_allowed_files" == true ]]; then
            echo "should_merge=true" >> $GITHUB_ENV
          else
            echo "should_merge=false" >> $GITHUB_ENV
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.SECRETS_GITHUB_TOKEN }}

      - name: Ready for review
        if: success() && env.should_merge == 'true'
        run: |
          PR_NUMBER=${{ github.event.pull_request.number }}
          IS_DRAFT=$(gh pr view $PR_NUMBER --json isDraft --jq '.isDraft')

          if [[ "$IS_DRAFT" == "true" ]]; then
            gh pr ready $PR_NUMBER
            echo "Draft status removed. Ready to merge."
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.SECRETS_GITHUB_TOKEN }}

      - name: Wait and Check PR status
        if: success() && env.should_merge == 'true'
        run: |
          PR_NUMBER=$(jq -r '.pull_request.number' < "$GITHUB_EVENT_PATH")
          STATUS_CHECKS=$(gh pr checks "$PR_NUMBER" --json name,state --jq '.[]')
          echo "$STATUS_CHECKS" | jq -r '. | "\(.name): \(.state)"'

          PR_STATUS_ALL_SUCCESS=true
          echo "pr_status_all_success=true" >> $GITHUB_ENV

          for i in {1..10}; do
            echo "Checking status checks... (Attempt $i)"
            PR_NUMBER=$(jq -r '.pull_request.number' < "$GITHUB_EVENT_PATH")
            STATUS_CHECKS=$(gh pr checks "$PR_NUMBER" --json name,state --jq '.[]')

            while IFS= read -r status; do
              CHECK_NAME=$(echo "$status" | jq -r '.name')
              CHECK_STATE=$(echo "$status" | jq -r '.state')
              if [[ "$CHECK_NAME" != "BUMP" && "$CHECK_STATE" != "SUCCESS" ]]; then
                PR_STATUS_ALL_SUCCESS=false
                break
              fi
            done <<< "$STATUS_CHECKS"

            if [ "$PR_STATUS_ALL_SUCCESS" = true ]; then
              echo "All required status checks are successful."
              echo "pr_status_all_success=true" >> $GITHUB_ENV
              break
            fi
            sleep 60
          done
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Check all checkboxes
        if: success() && env.should_merge == 'true' && env.pr_status_all_success == 'true'
        run: |
          gh pr view ${{ github.event.pull_request.number }} --json body --jq .body > pr_body.txt
          PR_BODY=$(cat pr_body.txt)
          CHECKED_BODY=$(echo "$PR_BODY" | sed 's/\[ \]/[x]/g')

          if [[ "$PR_BODY" != "$CHECKED_BODY" ]]; then
            gh pr edit ${{ github.event.pull_request.number }} --body "$CHECKED_BODY"
            echo "All checkboxes have been checked"
          else
            echo "No checkboxes found or all checkboxes are already checked"
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.SECRETS_GITHUB_TOKEN }}

      - name: Merged PR
        if: success() && env.should_merge == 'true' && env.pr_status_all_success == 'true'
        run: |
          COMMENT="본 패키지는 변경 사항이 없는 리포지토리 / 패키지임을 확인하여 병합되었습니다!"
          gh pr comment ${{ github.event.pull_request.number }} --body "$COMMENT"
          gh pr merge ${{ github.event.pull_request.number }} --merge --admin
        env:
          GITHUB_TOKEN: ${{ secrets.SECRETS_GITHUB_TOKEN }}