Blueprint of what an example cli in V should be.

cliexample.v

module main

import cli, os

fn main(
	mut app := cli.Command{
		name: 'pizzahut'
		description: 'Cli for ordering pizza from Pizza Hut'
		// execute: // Without specifying the `execute` parameter, it will just output the usage message
		commands: [
			cli.Command{
				name: 'order'
				description: 'Order food'
				flags: [
					Flag<string>{
						name: 'delivery'
						abbrev: 'd'
						description: 'Delivery options'
						// If set to false, capitalization won't matter
						// This will only work for string
						strict: false 
						options: [
							'pickup'
							'delivery'
						]
					}
				]
				pre_execute: fn (cmd cli.Command) {
					assert cmd.rest.len != 0 or {
						panic('You ordered nothing!')
					}
				}
				execute: fn (cmd cli.Command) {
					if cmd.results['verbose'] as bool {
						println('You ordered ${cmd.rest}')
					}
				}
			}
		]
		flags: [
			Flag<bool>{
				name: 'verbose'
				abbrev: 'v'
				description: 'Output more verbose results'
				default: false
				global: true
			}
		]
	}

	app.run(os.args) or {
		println('${err}\n')
		println(app.usage())
	}
)