#! /usr/bin/perl -w

use strict;
use Getopt::Long;

my ($pintos) = "pintos";
my ($os_disk) = "../../src/userprog/build/os.dsk";
my ($fs_disk);

GetOptions ("os-disk=s" => \$os_disk,
	    "fs-disk=s" => \$fs_disk,
	    "help" => sub { usage (0) })
    or die "option parsing failed; use --help for help\n";

if (!defined $fs_disk) {
    die "output disk name expected; use --help for help\n"
	if @ARGV < 1;
    $fs_disk = shift @ARGV;
}

if (! -e $os_disk) {
    print STDERR "$os_disk: stat: $!\n";
    print STDERR "perhaps you should `make' in ../../src/userprog?\n";
    exit 1;
}

our ($formatted) = 0;

unlink $fs_disk;
xsystem ("$pintos make-disk '$fs_disk' 2");
while (@ARGV) {
    put_file (shift (@ARGV));
}

sub put_file {
    my ($fn) = @_;
    my ($cmd) = "$pintos -v --os-disk='$os_disk' --fs-disk='$fs_disk' put";
    $cmd .= " -f", $formatted = 1 if !$formatted;
    $cmd .= " '$fn'";
    xsystem ($cmd);
}

sub xsystem {
    my ($cmd) = @_;
    print "$cmd\n";
    system ($cmd) == 0 || die "command failed\n";
}