halp 0.2.0

A CLI tool to get help with CLI tools 🐙
Documentation 
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use clap::{CommandFactory, ValueEnum};
use clap_complete::Shell;
use halp::cli::CliArgs;
use std::env;
use std::io::Result;

/// Shell completions can be created with:
///
/// ```sh
/// cargo run --bin halp-completions
/// ```
///
/// in a directory specified by the environment variable OUT_DIR.
/// See <https://doc.rust-lang.org/cargo/reference/environment-variables.html>
fn main() -> Result<()> {
    let out_dir = env::var("OUT_DIR").expect("OUT_DIR is not set");
    let mut app = CliArgs::command();
    for &shell in Shell::value_variants() {
        clap_complete::generate_to(shell, &mut app, env!("CARGO_PKG_NAME"), &out_dir)?;
    }
    println!("Completion scripts are generated in {out_dir:?}");
    Ok(())
}

#[cfg(test)]
mod tests {
    use super::*;
    #[test]
    fn generate_completions() -> Result<()> {
        main()
    }
}