Module command_registry 

Command registry implementation

This module provides the central registry for storing and retrieving command definitions and their associated handlers.

Architecture

The registry maintains two main data structures:

• A map of command names to their definitions and handlers
• A map of aliases to canonical command names

This design allows O(1) lookup by both command name and alias.

Example

use dynamic_cli::registry::CommandRegistry;
use dynamic_cli::config::schema::CommandDefinition;
use dynamic_cli::executor::CommandHandler;
use std::collections::HashMap;

// Create a registry
let mut registry = CommandRegistry::new();

// Define a command
let definition = CommandDefinition {
    name: "hello".to_string(),
    aliases: vec!["hi".to_string(), "greet".to_string()],
    description: "Say hello".to_string(),
    required: false,
    arguments: vec![],
    options: vec![],
    implementation: "hello_handler".to_string(),
};

// Create a handler
struct HelloCommand;
impl CommandHandler for HelloCommand {
    fn execute(
        &self,
        _ctx: &mut dyn dynamic_cli::context::ExecutionContext,
        _args: &HashMap<String, String>,
    ) -> dynamic_cli::Result<()> {
        println!("Hello!");
        Ok(())
    }
}

// Register the command
registry.register(definition, Box::new(HelloCommand))?;

// Retrieve by name
assert!(registry.get_handler("hello").is_some());

// Retrieve by alias
assert_eq!(registry.resolve_name("hi"), Some("hello"));

Structs

CommandRegistry

Central registry for commands and their handlers