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use bpaf::*;
use std::path::PathBuf;
#[allow(dead_code)]
#[derive(Debug, Clone)]
struct Out {
debug: bool,
verbose: usize,
speed: f64,
output: PathBuf,
nb_cars: u32,
files_to_process: Vec<PathBuf>,
}
fn opts() -> OptionParser<Out> {
let debug = short('d') .long("debug") .help("Activate debug mode") .switch(); let verbose = short('v')
.long("verbose")
.help("Increase the verbosity\nYou can specify it up to 3 times\neither as -v -v -v or as -vvv")
.req_flag(())
.many()
.map(|xs| xs.len())
.guard(|&x| x <= 3, "It doesn't get any more verbose than this");
let speed = short('s')
.long("speed")
.help("Set speed")
.argument::<f64>("SPEED") .fallback(42.0);
let output = short('o')
.long("output")
.help("output file")
.argument::<PathBuf>("OUTPUT") .complete_shell(ShellComp::File { mask: None });
let nb_cars = short('n').long("nb-cars").argument::<u32>("N");
let file_to_proces = short('f')
.long("file")
.help("File to process")
.argument::<PathBuf>("FILE")
.complete_shell(ShellComp::File { mask: Some("*.rs") });
let files_to_process = file_to_proces.many();
construct!(Out {
debug,
verbose,
speed,
output,
nb_cars,
files_to_process
})
.to_options()
.descr("This is a description")
}
fn main() {
let opts = opts().run();
println!("{:#?}", opts);
}