49 lines
1.3 KiB
Rust
49 lines
1.3 KiB
Rust
use super::Cmd;
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use clap::{Arg, Command};
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use std::{env, error::Error};
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#[derive(Debug)]
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pub struct Echo;
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impl Cmd for Echo {
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fn cli(&self) -> clap::Command {
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Command::new("echo")
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.about("Display a line of text")
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.long_about("Echo the STRING(s) to standard output")
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.author("Nathan Fisher")
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.args([
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Arg::new("inline")
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.short('n')
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.help("Do not output a trailing newline"),
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Arg::new("STRING").num_args(1..),
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])
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}
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fn run(&self, _matches: &clap::ArgMatches) -> Result<(), Box<dyn Error>> {
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let args: Vec<String> = env::args().collect();
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let idx = match shitbox::progname() {
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Some(s) if s.as_str() == "echo" => 1,
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Some(_) => 2,
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None => unreachable!(),
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};
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let len = args.len();
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let n = len > idx && args[idx] == "-n";
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let i = if n { idx + 1 } else { idx };
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for (index, arg) in args.iter().enumerate().skip(i) {
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if index < len - 1 {
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print!("{arg} ");
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} else {
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print!("{arg}");
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}
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}
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if !n {
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println!();
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}
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Ok(())
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}
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fn path(&self) -> Option<shitbox::Path> {
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Some(shitbox::Path::Bin)
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}
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}
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