Calibre Update Backup Script

This repository contains a PowerShell workflow that:

1. Resolves Calibre and backup paths based on the current hostname.
2. Downloads the latest Calibre Portable installer.
3. Stops STRATO HiDrive to avoid sync/file-lock issues.
4. Creates a split 7z backup of the Calibre Portable folder.
5. Installs the update.
6. Restarts HiDrive.
7. Deletes old backup sets and keeps only the newest configured amount.

Main Script

• Calibre Update Backup.ps1 Main script for backup, update, HiDrive stop/start, and retention cleanup.

Requirements

• Windows PowerShell
• 7-Zip installed at C:\Program Files\7-Zip\7z.exe (default path used by script)
• Access to the target backup and Calibre Portable directories defined in the script
• STRATO HiDrive client (optional but supported and handled by the script)

Configuration Notes

• Host-specific paths are configured in:
  • Set-CalibreBackupPath
  • Set-CalibreFolderPath
• Retention count is controlled by $CalibreBackupRetention.
• Installer is downloaded to $env:TEMP\calibre-portable-installer.exe.

Repository Structure

.
|-- Legacy/
|   `-- Calibre Update Backup.bat
|-- Calibre Update Backup.ps1
|-- .gitignore
|-- LICENSE.md
`-- README.md

File and Directory Purpose

• Legacy/ Historical scripts kept for reference only; not actively maintained.
• Legacy/Calibre Update Backup.bat Older batch-file implementation.
• Calibre Update Backup.ps1 Current maintained script.
• .gitignore Git ignore rules for local/runtime artifacts.
• LICENSE.md MIT License file.
• README.md Project documentation.

Legacy Notes

All files under Legacy/ are retained for reference and migration history. Use Calibre Update Backup.ps1 for current operations.

License

This project is licensed under the MIT License. You are free to use and modify the code as long as you include the original copyright notice and credit the author.