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Entry point function that validates the working directory and starts an email forwarding service.

Purpose

This function serves as the main entry point for the Email Forwarder application. It performs a directory validation check to ensure the script is being run from the correct location (email-forwarder directory), then delegates to a start_service() function to initialize and run the email forwarding service. It provides user feedback through console output and returns a boolean indicating success or failure.

Source Code

def main():
    """Main function."""
    print("📧 Email Forwarder - Programmatic Startup")
    print("=========================================")
    print()
    
    # Check current directory
    if not (Path('requirements.txt').exists() and Path('src').exists()):
        print("❌ This script must be run from the email-forwarder directory")
        print(f"   Current directory: {Path.cwd()}")
        return False
    
    success = start_service()
    return success

Return Value

Returns a boolean value: False if the directory validation fails (requirements.txt or src directory not found in current working directory), otherwise returns the boolean result from the start_service() function call (success status of service startup).

Dependencies

• pathlib
• dotenv

Required Imports

from pathlib import Path
from dotenv import load_dotenv

Usage Example

# Ensure you are in the email-forwarder directory
# Directory structure should include:
#   - requirements.txt
#   - src/

from pathlib import Path
from dotenv import load_dotenv

# Define or import start_service function
def start_service():
    # Service startup logic here
    return True

# Call main function
if __name__ == '__main__':
    success = main()
    if success:
        print('Service started successfully')
    else:
        print('Service failed to start')
        sys.exit(1)

Best Practices

• Always run this script from the email-forwarder root directory to pass validation checks
• Ensure requirements.txt and src directory exist before execution
• The function depends on an external start_service() function which must be defined or imported
• Check the return value to determine if the service started successfully
• The function prints status messages to stdout, so redirect output if running in automated environments

Tags

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