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Nick Heppler
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README.md
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README.md
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# lubelogger-backup
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# Lubelogger Backup Script
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This script automates the backup process for **Lubelogger**—a self-hosted, open-source vehicle maintenance records and fuel mileage tracker. It includes:
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- Creating backups of your Lubelogger database.
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- Storing them in a specified directory.
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- Notifying external systems like **Uptime Kuma** and **Gotify** about the backup status.
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## Features:
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- **Automated Backup**: Downloads backups from the Lubelogger API.
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- **Notifications**: Sends notifications to Uptime Kuma and Gotify about backup success or failure.
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- **Log Management**: Generates logs for each backup with timestamps.
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- **Retention**: Automatically deletes old backup and log files after a specified number of days.
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## Prerequisites:
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- **Lubelogger API**: Make sure your Lubelogger instance is running and the API endpoint for backup generation is accessible.
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- **Uptime Kuma**: For monitoring the backup process.
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- **Gotify**: For receiving notifications about backup errors.
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- **Curl**: This script relies on `curl` to interact with APIs and download backups.
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- **Bash**: This script is written in bash and requires a Linux or Unix-based system.
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## Setup Instructions:
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### 1. Clone the Repository:
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Clone this repository to your local machine or server:
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```bash
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git clone https://your-gitea-repo-url.git
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cd lubelogger-backup-script
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```
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### 2. Create `.env` File:
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Create a `.env` file in the same directory as the script to store the necessary configuration:
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```bash
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# .env
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USERNAME=rootUser
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PASSWORD=rootPassword
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BASE_URL=https://lubelogger.mydomain.com
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BACKUP_DIR=$HOME/lubelogger_backups
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RETENTION_DAYS=7
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BACKUP_TAG=lubelogger-db1
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# Uptime Kuma settings (only the hostname is required)
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UPTIME_KUMA_URL=https://uptime-kuma.example.com
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UPTIME_KUMA_API_KEY=your-uptime-kuma-api-key
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# Gotify settings (only the hostname is required)
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GOTIFY_PUSH_URL=https://push.example.de
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GOTIFY_PUSH_KEY=your-app-token
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```
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- **USERNAME**: The root user for the Lubelogger API.
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- **PASSWORD**: The root password for the Lubelogger API.
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- **BASE_URL**: The base URL for your Lubelogger instance.
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- **BACKUP_DIR**: The directory where backup files will be stored.
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- **RETENTION_DAYS**: The number of days to retain backups before deleting them.
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- **BACKUP_TAG**: A custom tag for identifying your backups.
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- **UPTIME_KUMA_URL**: The hostname for your Uptime Kuma instance (e.g., `https://uptime-kuma.example.com`).
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- **UPTIME_KUMA_API_KEY**: Your Uptime Kuma API key.
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- **GOTIFY_PUSH_URL**: The hostname for your Gotify instance (e.g., `https://push.example.de`).
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- **GOTIFY_PUSH_KEY**: Your Gotify application token.
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### 3. Make the Script Executable:
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Make the backup script executable:
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```bash
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chmod +x lubelogger_backup.sh
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```
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### 4. Run the Backup Script:
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To run the script manually, execute:
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```bash
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./lubelogger_backup.sh
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```
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### 5. Automate the Backup (Optional):
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You can automate the backup process using `cron`. For example, to run the backup script every day at 2 AM, add the following cron job:
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```bash
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0 2 * * * /path/to/lubelogger_backup.sh
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```
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## How It Works:
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1. **Backup Creation**: The script sends a request to the Lubelogger API (`/api/makebackup`) to trigger the backup creation.
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2. **Backup Download**: The script downloads the backup as a `.zip` file from the generated URL.
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3. **Uptime Kuma Check-in**: The script sends a check-in to Uptime Kuma to indicate the backup is running as expected.
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4. **Gotify Error Notification**: If there are any errors during the backup process, Gotify is notified with the error details.
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5. **Log Management**: The script generates logs for each backup with detailed timestamps, errors, and status.
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6. **Retention**: The script automatically deletes backups and logs older than the specified retention period (configured in the `.env` file).
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## Example Output:
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When the script runs, you should see output logs like this:
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```bash
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[$(date)] 🔄 Starting Lubelogger backup job
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[$(date)] ✅ Uptime Kuma check-in sent.
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[$(date)] ⬇️ Downloading backup from https://lubelogger.mydomain.com/api/backup/download/abc123
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[$(date)] ✅ Backup saved to /path/to/backup/backup_2025-04-25_14-30-00.zip
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[$(date)] 🧹 Cleaning up old backups/logs older than 7 days
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[$(date)] ✅ Backup job finished
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```
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### Logs and Errors:
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- The script scans logs for any occurrence of "Error" and sends a Gotify notification with the details.
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- In case of a failure in the backup process, Uptime Kuma and Gotify will be notified with the appropriate status.
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---
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## Troubleshooting:
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### Uptime Kuma:
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- Ensure that the Uptime Kuma check-in URL and API key are correctly set in the `.env` file.
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- Verify that Uptime Kuma is accessible and configured properly.
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### Gotify:
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- If Gotify notifications are not working, ensure that your Gotify server is correctly set up to accept push notifications via `POST` with form data.
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- Double-check the app token and push URL in the `.env` file.
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### Permissions:
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- Make sure that the script has the appropriate permissions to execute and access the backup directory.
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- Ensure that the directory specified in `BACKUP_DIR` exists and is writable by the user running the script.
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---
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## License:
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This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
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95
lubelogger_backup.sh
Executable file
95
lubelogger_backup.sh
Executable file
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#!/bin/bash
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# Load config from .env
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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if [[ -f "$SCRIPT_DIR/.env" ]]; then
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source "$SCRIPT_DIR/.env"
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else
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echo "[$(date)] Missing .env file in $SCRIPT_DIR"
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exit 1
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fi
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# Ensure backup directory exists
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mkdir -p "$BACKUP_DIR"
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# Generate timestamped filenames
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TIMESTAMP=$(date +"%Y-%m-%d_%H-%M-%S")
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OUTPUT_FILE="$BACKUP_DIR/backup_$TIMESTAMP.zip"
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LOG_FILE="$BACKUP_DIR/backup_$TIMESTAMP.log"
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# Logging helper
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log() {
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echo "[$(date)] $1" | tee -a "$LOG_FILE"
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}
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# Uptime Kuma check-in (GET Request with only "status=up" and "msg=OK")
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uptime_kuma_checkin() {
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if [[ -n "$UPTIME_KUMA_URL" && -n "$UPTIME_KUMA_API_KEY" ]]; then
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# Send GET request directly to Uptime Kuma with status=up and msg=OK
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curl -s "${UPTIME_KUMA_URL}/api/push/${UPTIME_KUMA_API_KEY}?status=up&msg=OK" > /dev/null
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log "✅ Uptime Kuma check-in sent."
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fi
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}
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# Gotify Error Notification
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gotify_error_notify() {
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local summary="Errors detected in recent Lubelogger backup logs on $(hostname):\n$1"
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if [[ -n "$GOTIFY_PUSH_URL" && -n "$GOTIFY_PUSH_KEY" ]]; then
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# Send the Gotify notification with form data
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curl -s -X POST "${GOTIFY_PUSH_URL}/message?token=${GOTIFY_PUSH_KEY}" \
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-F "title=[${BACKUP_TAG}] Backup Errors on $(hostname)" \
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-F "message=$(echo -e "$summary" | head -c 1000)" \
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-F "priority=5" > /dev/null
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log "⚠️ Gotify error notification sent."
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fi
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}
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# Start backup
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log "🔄 Starting Lubelogger backup job"
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# Uptime Kuma Check-in: Inform that the backup process has started
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uptime_kuma_checkin
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response=$(curl -s -n -u "$USERNAME:$PASSWORD" --location "$BASE_URL/api/makebackup")
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if [[ -z "$response" ]]; then
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log "❌ Error: Empty response from backup API"
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gotify_error_notify "Empty response from backup API."
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exit 1
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fi
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backup_url="${BASE_URL}${response//\"/}"
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log "⬇️ Downloading backup from $backup_url"
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curl -s -n -u "$USERNAME:$PASSWORD" --location "$backup_url" -o "$OUTPUT_FILE"
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if [[ $? -eq 0 ]]; then
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log "✅ Backup saved to $OUTPUT_FILE"
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else
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log "❌ Error: Failed to download backup"
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gotify_error_notify "Failed to download backup."
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exit 1
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fi
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# Cleanup old backups and logs
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log "🧹 Cleaning up old backups/logs older than $RETENTION_DAYS days"
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find "$BACKUP_DIR" \( -name "backup_*.zip" -o -name "backup_*.log" \) -type f -mtime +$RETENTION_DAYS -exec rm {} \;
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# Error summary scanning
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log "🔍 Scanning recent logs for errors"
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ERRORS=""
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while IFS= read -r logfile; do
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LOG_ERRORS=$(grep "Error" "$logfile")
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if [[ -n "$LOG_ERRORS" ]]; then
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ERRORS+="\n$(basename "$logfile"):\n$LOG_ERRORS\n"
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fi
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done < <(find "$BACKUP_DIR" -name "backup_*.log" -type f -mtime -$RETENTION_DAYS)
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if [[ -n "$ERRORS" ]]; then
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gotify_error_notify "$ERRORS"
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fi
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log "✅ Backup job finished"
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