Configuring Your App

Configuring your app is awfully simple, there’s a handful of options you can configure for your app.

Here are the available options:

• .name("My App"): The human readable name for your app
• .description("the most awesome app ever"): The description for your app
• .version("0.1.0"): The version of your app
• .print_help_if_no_args(true): Prints the help screen when no command is specified.
• .print_help_on_fail(true): Prints help when no command found.

(Added on newer versions, 0.2.0 or above)

• .flag(Flag): Adds a flag to your app, we’ll get to this later.
• .strict_flags(true): Enforces that only flags specified in .flag(Flag) are allowed.
• .main(fallback /* fn(PassedFlags) */): Sets a fallback function to run when no command is specified. Conventional names: entrypoint, entry, fallback.

Example

use vecli::*;

fn main() {
    App::new()
        .name("My App")
        .description("the most awesome app ever")
        .version("0.3.0")
        .print_help_if_no_args(true)
        .print_help_on_fail(true)
        .run();
}

Now that the app is configured how you want it, let’s add some functionality to it, by Adding Commands.