Function main

shell/src/main.rs:153–220

()

#[no_mangle]
fn main() {
    println!("Type help [Enter] to see the shell help page.");

    let stdin = io::stdin();
    let mut line_buffer = String::new();

    // Current Working Directory
    let mut current_directory = PathBuf::from("/ramdisk");

    loop {
        // prompt
        print!("$ ");

        // Read a line of input
        stdin.read_line(&mut line_buffer);

        let args: Vec<_> = line_buffer.split_whitespace().collect();
        if let Some(command) = args.first() {
            match *command {
                // Built-in shell commands
                //
                // Help
                "help" | "?" => help(),
                // List directory
                "ls" => ls(&current_directory, &args[1..]),
                // Print working directory
                "pwd" => println!("{:?}", current_directory),
                // Change directory
                "cd" => {
                    if args.len() != 2 {
                        println!("Usage: cd <directory>");
                        continue;
                    }
                    current_directory.push(args[1]);
                    current_directory = fs::canonicalize(current_directory).unwrap();
                },
                "mount" => {
                    match syscalls::list_mounts() {
                        Ok((handle, len)) =>  {
                            let u8_slice = handle.as_slice::<u8>(len as usize);
                            if let Ok(s) = str::from_utf8(u8_slice) {
                                println!("{}", s);
                            } else {
                                println!("mount: syscall utf8 error");
                            }
                        }
                        Err(err) => {
                            println!("mount: error {}", err);
                        }
                    }
                },
                "umount" => umount(&args[1..]),
                "rm" => rm(&current_directory, &args[1..]),
                "mkdir" => mkdir(&current_directory, &args[1..]),
                "exit" => return,
                cmd => {
                    let path = fs::canonicalize(current_directory.join(cmd)).unwrap();