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use clap::{app_from_crate, arg, App, AppSettings};
fn main() {
let matches = app_from_crate!()
.global_setting(AppSettings::PropagateVersion)
.global_setting(AppSettings::UseLongFormatForHelpSubcommand)
.setting(AppSettings::SubcommandRequiredElseHelp)
.subcommand(
App::new("add")
.about("Adds files to myapp")
.arg(arg!([NAME])),
)
.get_matches();
match matches.subcommand() {
Some(("add", sub_matches)) => println!(
"'myapp add' was used, name is: {:?}",
sub_matches.value_of("NAME")
),
_ => unreachable!(),
}
}