nightly-backup.yml

name: Backup to S3

on:
    schedule:
        - cron: '0 0 * * *'  # Every day at midnight

jobs:
    backup:
        runs-on: ubuntu-latest

        steps:
            - name: Configure AWS Credentials
              uses: aws-actions/configure-aws-credentials@v1
              with:
                  aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
                  aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
                  aws-region: eu-west-1

            - name: Download Last Commit Hash
              continue-on-error: true
              run: aws s3 cp s3://backup.glowbuzzer.com/${{ github.repository }}/last_commit_hash.txt last_commit_hash.txt || echo "0" > last_commit_hash.txt

            - name: Clone Repository
              env:
                  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
              run: git clone --mirror https://${GITHUB_TOKEN}@github.com/${{ github.repository }}.git

            - name: Get Latest Commit Hash
              run: echo "CURRENT_HASH=$(git --git-dir=$(basename "${{ github.repository }}").git rev-parse HEAD)" >> $GITHUB_ENV

            - name: Check for Changes
              id: compare
              run: |
                  if [[ $(cat last_commit_hash.txt) != "${{ env.CURRENT_HASH }}" ]]; then
                    echo "REQUIRE_BACKUP=true" >> $GITHUB_ENV
                  fi

            - name: Backup if Changed
              if: env.REQUIRE_BACKUP == 'true'
              run: |
                  tar czf repository_backup.tar.gz $(basename "${{ github.repository }}").git
                  aws s3 cp repository_backup.tar.gz s3://backup.glowbuzzer.com/${{ github.repository }}/backup.tar.gz
                  echo "${{ env.CURRENT_HASH }}" > last_commit_hash.txt
                  aws s3 cp last_commit_hash.txt s3://backup.glowbuzzer.com/${{ github.repository }}/last_commit_hash.txt