Crate simpleshell

A minimalistic shell for commands

Example

fn version(_: &[String], _: &[Command]) -> Result<(), CommandError> {
    println!("v0.1.0");
    Ok(())
}

fn help(_: &[String], commands: &[Command]) -> Result<(), CommandError> {
    println!("{}", Color::Blue.paint("HELP"));
    commands.iter().for_each(|c| println!("{}: {}", Style::new().bold().paint(&c.name), c.description));
    Ok(())
}

let commands = vec![
    Command {
        name: "version".to_owned(),
        description: "Returns the version of the software".to_owned(),
        exec: Box::new(version),
    },
    Command {
        name: "help".to_owned(),
        description: "Prints out this help".to_owned(),
        exec: Box::new(help),
    },
];

let shell = Shell::new(None, commands);
loop {
    if let Err(e) = shell.process(){
        eprintln!("{}", e);
    }
}

// User Input:
// shell> version
// Output:
// v0.1.0

Structs

Command

Represents an executable command

Shell

Represents the Shell that parses the user input into a command and executes it

Enums

CommandError

Errors that may occur while processing a command. An error occurs if it was not found or an error occured while executing the command