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Main entry point function that analyzes a reMarkable tablet replica directory by loading its database, printing analysis results, and displaying sync information.

Purpose

This function serves as the command-line interface entry point for analyzing a reMarkable tablet's local replica directory. It accepts an optional directory path as a command-line argument, validates the directory exists, loads the database from it, and prints comprehensive analysis including database contents and sync information. It's designed to be called when the script is executed directly.

Source Code

def main():
    """Main entry point"""
    if len(sys.argv) > 1:
        replica_dir = Path(sys.argv[1])
    else:
        replica_dir = Path.cwd() / "remarkable_complete_replica"
    
    if not replica_dir.exists():
        print(f"❌ Replica directory not found: {replica_dir}")
        print(f"💡 Usage: python {sys.argv[0]} [replica_directory]")
        return False
    
    print(f"📁 Analyzing replica: {replica_dir}")
    
    # Load and analyze database
    database = load_database(replica_dir)
    if not database:
        return False
    
    print_database_analysis(database)
    print_sync_info(replica_dir)
    
    print(f"\n✅ Analysis complete!")
    return True

Return Value

Returns a boolean value: True if the analysis completed successfully (directory exists, database loaded, and analysis printed), False if the replica directory was not found or the database failed to load.

Required Imports

import json
import sys
from pathlib import Path
from datetime import datetime
from typing import Dict
from typing import Any
from typing import List

Usage Example

# Run from command line with default directory:
# python script.py

# Run from command line with custom directory:
# python script.py /path/to/replica

# Call programmatically:
if __name__ == '__main__':
    success = main()
    sys.exit(0 if success else 1)

Best Practices

• This function expects to be called as a script entry point with sys.argv available
• Requires companion functions (load_database, print_database_analysis, print_sync_info) to be defined in the same module
• Uses Path objects for cross-platform file path handling
• Provides user-friendly error messages with emoji indicators for better CLI experience
• Returns boolean for exit code handling - use sys.exit(0 if main() else 1) pattern
• Command-line argument at index 1 should be a valid directory path to a reMarkable replica
• The function performs validation before processing to fail fast on invalid inputs

Tags

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