clap/tests/derive/utils.rs
Ed Page ddac492302 fix: Rename IntoApp to CommandFactory
This is part of the `App` rename.

Previously, I was concerned about not being able to deprecate

For backwards compatibility, we still expose the `IntoApp` name.
2022-02-15 08:24:00 -06:00

56 lines
1.5 KiB
Rust

// Hi, future me (or whoever you are)!
//
// Yes, we do need this attr.
// No, the warnings cannot be fixed otherwise.
// Accept and endure. Do not touch.
#![allow(unused)]
use clap::CommandFactory;
pub fn get_help<T: CommandFactory>() -> String {
let mut output = Vec::new();
<T as CommandFactory>::command()
.write_help(&mut output)
.unwrap();
let output = String::from_utf8(output).unwrap();
eprintln!("\n%%% HELP %%%:=====\n{}\n=====\n", output);
eprintln!("\n%%% HELP (DEBUG) %%%:=====\n{:?}\n=====\n", output);
output
}
pub fn get_long_help<T: CommandFactory>() -> String {
let mut output = Vec::new();
<T as CommandFactory>::command()
.write_long_help(&mut output)
.unwrap();
let output = String::from_utf8(output).unwrap();
eprintln!("\n%%% LONG_HELP %%%:=====\n{}\n=====\n", output);
eprintln!("\n%%% LONG_HELP (DEBUG) %%%:=====\n{:?}\n=====\n", output);
output
}
pub fn get_subcommand_long_help<T: CommandFactory>(subcmd: &str) -> String {
let mut output = Vec::new();
<T as CommandFactory>::command()
.get_subcommands_mut()
.find(|s| s.get_name() == subcmd)
.unwrap()
.write_long_help(&mut output)
.unwrap();
let output = String::from_utf8(output).unwrap();
eprintln!(
"\n%%% SUBCOMMAND `{}` HELP %%%:=====\n{}\n=====\n",
subcmd, output
);
eprintln!(
"\n%%% SUBCOMMAND `{}` HELP (DEBUG) %%%:=====\n{:?}\n=====\n",
subcmd, output
);
output
}