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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 CC BY-NC-SA 4.0 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 Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. You may use, share, and adapt the material for non-commercial purposes, provided you give appropriate credit and distribute any changes under the same license.