DiffBack Backup Comparison Tool

Overview

The Backup Comparison Tool is a Python utility designed to compare files between a source folder and a backup folder. It checks for discrepancies in file names, sizes, and contents, and generates a detailed report highlighting files that are missing, have different sizes, or have different hashes between the source and backup directories.

Features

• Compares files based on names, sizes, and SHA-256 hashes.
• Generates a detailed report including:
  • Files in source but missing in backup.
  • Files in backup but missing in source.
  • Files present in both but with different sizes or hashes.
  • Files present in both and similar.
• Provides a summary line in the report indicating the overall comparison status and counts of discrepancies.

Prerequisites

• Python 3.6 or later

Installation

. Clone the repository:

git clone https://github.com/MohammadOwaisData/DiffBack.git
cd DiffBack

Usage

1. Run the tool:

   python app.py

2. Input folder paths:

   • When prompted, enter the path to the original folder (source).
   • When prompted, enter the path to the backup folder (backup).

3. Review the report:

   • The tool generates a report file in the backup_reports directory.
   • The report file is named with a timestamp (e.g., 20240912_120000_report.txt), format is (YYYYMMDD_HOUR_MINUTES_SECONDS_report.txt).

Report Format

The report file is formatted as follows:

1. First Line:

   • Pass/Fail Status: 1 (pass) if both source and backup have the same files and data; otherwise, 0 (fail).
   • Counts:
     • Count of files in source but missing in backup.
     • Count of files in backup but missing in source.
     • Count of files in both source and backup but with different sizes or hashes.
     • Count of files in both source and backup and similar.

   Example: 1#1#0#1#5

2. Detailed Report:

• Files in source but missing in backup:
  • Count and names.
• Files in backup but missing in source:
  • Count and names.
• Files in both source and backup but different sizes or hashes:
  • Count and names.
• Files in both source and backup and similar:
  • Count and names.

Error Handling

• Logs errors to tool.log for troubleshooting.
• Handles cases where directories do not exist or cannot be accessed.

Contributing

Contributions are welcome! Please open an issue or submit a pull request for any enhancements or bug fixes.

License

This tool is released under the MIT License. See the LICENSE file for details.

Contact

For any questions or feedback, please send a mail at proton address [link].