Source code #1380

build.rs

#[macro_use]
extern crate clap;
extern crate clap_generate;

use std::env;
use clap_generate::Shell;

include!("src/cli.rs");

fn main() {
    let outdir = match env::var_os("OUT_DIR") {
        None => return,
        Some(outdir) => outdir,
    };
    let mut app = build_cli();
    let name = app.get_name().to_owned();
    clap_generate::gen_completions(&mut app, name, Shell::Bash, outdir);
}

cli.rs

pub fn build_cli() -> clap::App<'static, 'static> {
    app_from_crate!().add_from_yaml(load_yaml!("cli.yml"))
}

main.rs

mod cli;

fn main() {
    let m = build_cli().get_matches();

    // normal logic continues...
}