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Main entry point function that orchestrates a document comparison workflow between two folders (mailsearch/output and wuxi2 repository), detecting signatures and generating comparison results.

Purpose

This function serves as the primary orchestrator for an enhanced document comparison tool. It coordinates the entire workflow: scanning two document folders, comparing their contents (including signature detection), saving results to files, and displaying a summary. It's designed to identify similarities, differences, and signatures between documents in the OUTPUT_FOLDER and WUXI2_FOLDER directories.

Source Code

def main():
    print("="*80)
    print("Enhanced Document Comparison Tool with Signature Detection")
    print("Comparing mailsearch/output with wuxi2 repository")
    print("="*80)
    
    # Scan folders
    output_docs = scan_output_folder(OUTPUT_FOLDER)
    wuxi2_docs = scan_wuxi2_folder(WUXI2_FOLDER)
    
    # Compare documents
    results = compare_documents(output_docs, wuxi2_docs)
    
    # Save results
    save_results(results, RESULTS_FILE, DETAILED_JSON)
    
    # Print summary
    print_summary(results)
    
    print("\n" + "="*80)
    print("Enhanced comparison complete!")
    print("="*80)

Return Value

This function does not return any value (implicitly returns None). It performs side effects including printing to console, writing results to files (RESULTS_FILE and DETAILED_JSON), and potentially creating/modifying files in the file system.

Dependencies

• PyPDF2

Required Imports

import os
import re
import json
import csv
import hashlib
from pathlib import Path
from typing import Dict, List, Tuple, Optional
from difflib import SequenceMatcher
import PyPDF2
from collections import defaultdict

Usage Example

# Define required constants and helper functions first
OUTPUT_FOLDER = './mailsearch/output'
WUXI2_FOLDER = './wuxi2'
RESULTS_FILE = './comparison_results.csv'
DETAILED_JSON = './detailed_results.json'

# Define helper functions (scan_output_folder, scan_wuxi2_folder, etc.)
# ... (implementation of helper functions)

# Run the main function
if __name__ == '__main__':
    main()

Best Practices

• Ensure all required helper functions (scan_output_folder, scan_wuxi2_folder, compare_documents, save_results, print_summary) are properly implemented before calling main()
• Verify that OUTPUT_FOLDER and WUXI2_FOLDER paths exist and are accessible before execution
• Ensure sufficient disk space is available for writing RESULTS_FILE and DETAILED_JSON outputs
• Consider wrapping the main() call in a try-except block to handle potential file I/O errors, permission issues, or missing dependencies
• The function assumes specific folder structures and naming conventions - ensure your directories match the expected format
• For large document sets, be aware that this function may take significant time to complete and consume considerable memory
• Consider adding logging instead of or in addition to print statements for production use
• This function has side effects (file I/O, console output) - it's not idempotent and should be used carefully in automated workflows

Tags

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