###### -*-perl-*-

# routines to format partitions

# This variable will be used later to determine the
# filesystem type for each partition formatted here
%fsformat = ();

@selected_devices = ();

$fstype = "ext2";
$badblock_check = "";

sub select_format_disks {
    local ( %fsinfolist, $dev, $devsize );
    local ( %fsmenu, $msg );
    local ( $p, $r );

    if ($fs_mounted) {
	&rhs_msgbox("Error",
<<EOM
>
Your filesystems are already mounted (and thus, they are
most likely formatted).  If you still wish to format them,
unmount them first.
>
EOM
		    , 60);
	return 0;
    }

    &rhs_infobox ( "Filesystems",
<<EOM
>
Looking for Linux partitions...
>
EOM
                           , 60);

    %fsinfolist = ();
    open(SAVEERR, ">&STDERR");
    open(STDERR, ">/dev/null");
    open(PROC, "fdisk -l |") || &newdie("Can't call fdisk!");
    while (<PROC>) {
        if (/^(.{10}).{5}(.{31}).*Linux native$/) {
	    $p = $1; $r = $2;
	    $p =~ s/\s$//;
            $fsinfolist{$p} = "$r";
        }
    }
    close PROC;
    open(STDERR, ">&SAVEERR");

    if (keys(%fsinfolist) == 0) {
        &rhs_msgbox ( "Filesystems",
<<EOM
>
You do not appear to have any Linux partitions on your system.
You must create at least one before continuing.
>
EOM
                     , 60);
        return 0;
    }

    do {
	%fsformat = ();
	%fs_menu = %fsinfolist;
	foreach $dev (keys %fs_menu) {
	    $fs_menu{$dev} = sprintf("%7s %s", $fsformat{$dev}, $fs_menu{$dev});
	}
	if (! &rhs_checklista("Filesystems",
<<EOM
>
Use the spacebar to select all partitions to format. Then select OK.
>
>      Device        Type  Begin   Start     End  Blocks
EOM
			       , 65, %fs_menu)) {
	    return 0;
	}
	if (! scalar(@dialog_result)) {
	    next;
	}
	@selected_devices = sort @dialog_result;
	
	foreach $dev (@selected_devices) {
	    $fsformat{$dev} = $fstype;
	}

	if ($express_install) {
	    $dialog_result = "No";
	} else {
	    if (! &rhs_menu("Filesystems",
<<EOM
>
Check for bad blocks on the hard drive during formatting?
>
EOM
			    , 50, 2,
			    "Yes", "Check for bad blocks",
			    "No", "Do not check for bad blocks")) {
		next;
	    }
	}
	if ($dialog_result eq "Yes") {
	    $badblock_check = "-c";
	} else {
	    $badblock_check = "";
	}

	$msg =
<<EOM
>
Are you absolutely certain that you want to format?
>
EOM
    ;
	foreach $dev (@selected_devices) {
	    $msg .= 
<<EOM
>$dev
EOM
    ;
	}
	$msg .=
<<EOM
>
All data on these partitions will be lost!
>
EOM
    ;
    } while (! &rhs_yesno("Filesystems", $msg, 70));

    return 1;
}

sub format_disks {
    local ( $dev, $devsize, %fsinfolist, $msg, $res, $retval );

    $retval = 1;

    %fsinfolist = ();
    open(SAVEERR, ">&STDERR");
    open(STDERR, ">/dev/null");
    open(PROC, "fdisk -l |") || &newdie("Can't call fdisk!");
    while (<PROC>) {
        if (/^(.{10}).{5}(.{31}).*Linux native$/) {
	    $p = $1; $r = $2;
	    $p =~ s/\s$//;
            $fsinfolist{$p} = "$r";
        }
    }
    close PROC;
    open(STDERR, ">&SAVEERR");

    if (keys(%fsinfolist) == 0) {
        &rhs_msgbox ( "Filesystems",
<<EOM
>
Your Linux partitions have disappeared.
>
You must create at least one before continuing.
>
EOM
                     , 60);
        return 0;
    }

    foreach $dev (@selected_devices) {
	$fsinfolist{$dev} =~ /^.*(.{9})$/;
	$devsize = $1;
	chop($devsize);

	$msg =
<<EOM
>
Formatting $dev with $fstype filesystem.
>
EOM
    ;
	if ($badblock_check eq "-c") {
	    $msg .=
<<EOM
Checking for bad blocks. This may take a minute or two.
>
EOM
    ;
	}

	&rhs_infobox("Formatting Filesystems", $msg, 65);

	if ($express_install) {
	    $res = &invoke_no_output("mke2fs $badblock_check $dev");
	} else {
	    $res = &invoke("mke2fs $badblock_check $dev");
	}
	if ($res) {
	    $retval = 0;
	    &rhs_msgbox("Error",
<<EOM
>
An error occurred while formatting $dev.
>
EOM
			, 60);
	    delete $fsformat{$dev};
	}
    }

    return $retval;
}

#############
1;