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use rustyline::error::ReadlineError;
use rustyline::Editor;
mod builtins;
mod parser;
mod prompt;
fn main() {
match std::fs::read_to_string("/etc/motd") {
Ok(motd) => print!("{}", motd),
Err(_) => {}
}
let prompt = prompt::Prompt::new().unwrap();
let mut cwd = std::env::current_dir().unwrap();
let mut status = None; //: std::process::ExitStatus;
// `()` can be used when no completer is required
let mut rl = Editor::<()>::new();
/*if rl.load_history("history.txt").is_err() {
println!("No previous history.");
}*/
'repl: loop {
let readline = rl.readline(&prompt.print(&cwd));
match readline {
Ok(line) => {
rl.add_history_entry(line.as_str());
let commands = parser::parse(&line);
match commands[0] {
"!" => println!("{:?}", status),
"cd" => match builtins::cd(&commands[1..], &prompt.home) {
Ok(p) => cwd = p,
Err(e) => eprintln!("Error: {}", e),
},
"exit" => {
break 'repl;
}
_ => match builtins::run(commands[0], &commands[1..]) {
Ok(s) => {
println!("Ok({})", s);
status = Some(s);
},
Err(e) => println!("Err({})", e),
},
}
//println!("Line: {}", line);
}
Err(ReadlineError::Interrupted) => {
println!("CTRL-C");
continue;
}
Err(ReadlineError::Eof) => {
println!("CTRL-D");
break;
}
Err(err) => {
println!("Error: {:?}", err);
break;
}
}
}
//rl.save_history("history.txt").unwrap();
}
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