delete_branch.yml

name: Delete Merged Branches

on:
  schedule:
    - cron: '0 0 * * *'
  workflow_dispatch:

permissions:
  contents: write

jobs:
  delete-merged-branches:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v3
        with:
          fetch-depth: 0
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Delete old merged branches
        run: |
          echo "Starting branch cleanup process..."

          git config --global user.name 'github-actions'
          git config --global user.email 'github-actions@github.com'

          echo "Switching to develop branch..."
          git checkout develop

          echo "Current time: $(date)"

          # 원격 브랜치 최신 정보 업데이트
          git fetch --prune origin

          echo "Checking for merged branches older than 7 days..."
          git branch -r --merged develop | \
            grep -v 'origin/main\|origin/develop' | \
            while read branch; do
              branch_name=${branch#origin/}
              echo "Checking branch: $branch_name"
              
              # 마지막 커밋 날짜 확인
              last_commit_date=$(git log -1 --format=%cd $branch)
              echo "Last commit date: $last_commit_date"
              
              if [[ $(git log -1 --since='7 days ago' $branch) == "" ]]; then
                echo "Branch '$branch_name' is older than 7 days and will be deleted"
                git push origin --delete $branch_name || echo "Failed to delete branch: $branch_name"
              else
                echo "Branch '$branch_name' is still active (less than 7 days old)"
              fi
            done

          echo "Branch cleanup process completed"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}