Macro clap::app_from_crate
source · [−]macro_rules! app_from_crate {
() => { ... };
($sep:expr) => { ... };
}
Expand description
Allows you to build the App
instance from your Cargo.toml at compile time.
Equivalent to using the crate_*!
macros with their respective fields.
Provided separator is for the crate_authors!
macro,
refer to the documentation therefor.
NOTE: Changing the values in your Cargo.toml
does not trigger a re-build automatically,
and therefore won’t change the generated output until you recompile.
Pro Tip: In some cases you can “trick” the compiler into triggering a rebuild when your
Cargo.toml
is changed by including this in your src/main.rs
file
include_str!("../Cargo.toml");
Examples
let m = app_from_crate!().get_matches();