#!/usr/bin/perl

@ARGV >= 2 or die "usage: $0 <image> all|other|cdrom|hd|network|usb|blank|pcmcia|live|tftp|tftprd\n";

use Config;
use MDK::Common;
Config->import;
my ($arch) = $Config{archname} =~ /(.*)-/;

($img, $type) = @ARGV;

# move stuff to new "kernel" directory
-d 'kernel' or die "directory kernel is missing\n";
rename 'all.kernels', 'kernel/all.kernels';
rename 'all.modules', 'kernel/all.modules';

$default_append = "ramdisk_size=32000 root=/dev/ram3";
$default_vga = "vga=788";

$instdir = "mdk-stage1";
$mnt = "/tmp/drakx_mnt";
$mke2fs = "/sbin/mke2fs -q -m 0 -F -s 1";

if ($>) {
    $sudo = "sudo";
    $ENV{PATH} = "/sbin:/usr/sbin:$ENV{PATH}";
}

sub __ { print @_, "\n"; system(@_); }
sub _ { __ @_; $? and die; }

_ "$sudo mkdir $mnt" unless -e $mnt;
_ "$sudo mkdir ${mnt}2" unless -e "${mnt}2";

$install = $ {{
    all => "stage1-full",
    other => "stage1-full",
    blank => "stage1-full",
    live => "stage1-full",
    tftp => "stage1-full",
    tftprd => "stage1-full",
    pcmcia => "stage1-full",
    network => "stage1-network",
    usb => "stage1-usb",
    cdrom => "stage1-cdrom",
    hd => "stage1-disk",
    live64 => "stage1-full",
    tftp64 => "stage1-full",
    tftprd64 => "stage1-full",
    pcmcia64 => "stage1-full",
    network64 => "stage1-network",
    cdrom64 => "stage1-cdrom",
    hd64 => "stage1-disk",
}}{$type} or die;

mkdir "images";
chomp($main = `cat kernel/all.kernels/.main`);

if ($img =~ /blank|other|pcmcia/) {
    @kernels = $main;
} else {
    @kernels = map { m|kernel/all.kernels/(.*)| } glob('kernel/all.kernels/*');
    $img =~ /usb/ and @kernels = grep { $_ !~ /2\.2\.14/ } @kernels;  #- 2.2.14 is too old, usb support was not working properly
}

foreach (@kernels) {
    if ($img =~ /rdz$/) {
	initrd($mnt, "$img-$_");
    } else {
	$::{"boot_img_$arch"}->($mnt, "$img-$_", glob("kernel/all.kernels/$_/boot/vmlinu*"));
	rename("$img-$main", "$img");
    }
}
if ($arch =~ /i.86/ && $img =~ /all/) {
    isolinux($main, @kernels);
}

if (my ($tftpboot) = grep { -e $_ } qw(/tftpboot /var/lib/tftpboot)) {
    system("/bin/cp -f kernel/all.kernels/$main/boot/vmlinu* $tftpboot/vmlinuz 2>/dev/null");
    system("/bin/cp -f images/network.rdz-$main $tftpboot/network.rdz 2>/dev/null");
}

sub install_stripped { _ "strip $_[0]"; _ "$sudo install $_[0] $_[1]" }

sub initrd {
    my ($mnt, $img) = @_;
    my ($ltype, $I) = $type =~ /(.*?)(64)/; $ltype ||= $type;
    my $tmp = "$ENV{HOME}/tmp/initrd";
    my $tar = "$instdir/stage1-data/stage1.tar.bz2";

    __ "$sudo umount $tmp $mnt 2>/dev/null";
    _ "dd if=/dev/zero of=$tmp bs=1k count=" . ($arch =~ /ia64/ ? ($type eq "all" ? 16386 : 16384) : ($type eq "all" ? 4000 : 2000));
    _ "$mke2fs $tmp";
    _ "$sudo mount -t ext2 $tmp $mnt -o loop";

    _ "$sudo tar xjC $mnt -f $tar";
    install_stripped("$instdir/init", "$mnt/sbin");
    install_stripped("$instdir/$install", "$mnt/sbin/stage1");

    if ($type eq "network" || $type eq "usb" || $type eq "all" || $type eq "other" || $type eq "blank") {
	install_stripped("$instdir/ppp/pppd-bin", "$mnt/sbin/pppd");
	install_stripped("$instdir/rp-pppoe/pppoe-bin", "$mnt/sbin/pppoe");
	_ "$sudo mknod $mnt/dev/ppp c 108 0";
	_ "$sudo mknod $mnt/dev/ptyp0 c 2 0";
	_ "$sudo mknod $mnt/dev/ttyp0 c 3 0";
    }

    if (member($type, qw(pcmcia all network)) && $arch !~ /ppc/ && $arch !~ /ia64/) {
	 _ "$sudo cp -a /etc/pcmcia $mnt/etc";
	 _ "cp $mnt/etc/pcmcia/config /tmp/pcmcia_config_tmp";
	 _ "tools/patch_pcmcia_config.pl /tmp/pcmcia_config_tmp kernel/all.modules/$main/modules.dep";
	 _ "sudo mv /tmp/pcmcia_config_tmp $mnt/etc/pcmcia/config";
    }
    my ($ext) = $img =~ /rdz-(.*)/ or die "bad initrd name ($img)";
    $modz = "kernel/all.modules$I/$ext";
    _ "$sudo cp -f $modz/${ltype}_modules.mar $mnt/modules/modules$I.mar" if $type !~ /blank/;
    _ "$sudo cp -f $modz/modules.dep $mnt/modules/";
    _ "$sudo umount $mnt";


# Workaround for vfat-loop bug (quite touchy)
    _ "gzip -9f $tmp";
    _ "cp -f $tmp.gz $img";
    _ "rm -f $tmp.gz";
#    _ "gzip -9 -c $tmp > $img";
#    _ "rm -f $tmp";
}

sub entries_append {
    my ($type) = @_;

    my $automatic = "";
    $automatic = "automatic=method:cdrom" if ($type eq "cdrom");
    $automatic = "automatic=method:disk" if ($type eq "hd");

    my @simple_entries = (
	linux => "$default_vga",
	vgalo => "vga=785",
	vgahi => "vga=791",
	vga16 => "vga16",
	text => "text",
	patch => "patch $default_vga",
	expert => "expert $default_vga",
	rescue => "rescue rw",
    );
    my @entries = (
        (map { $_->[0] => "$automatic $_->[1]" } group_by2(@simple_entries)),
	if_(member($type, "cdrom", "all"), oem => "automatic=method:cdrom $default_vga rescue oem rw"),
        if_($type eq "all", all => "pcmcia $default_vga"),
    );

    map { [ $_->[0], "$default_append $_->[1]" ] }
      group_by2(@entries);
}

sub boot_img_i386 {
    my ($mnt, $img, $kernel) = @_;

    __ "$sudo umount $mnt 2>/dev/null";

    if ($type eq "hd") {
	_ "bunzip2 -c $instdir/init-data/msgboot.img.bz2 > $img";
    } elsif ($type eq "all") {
	_ "bunzip2 -c $instdir/init-data/msgboot-graphicallogo-2880.img.bz2 > $img";
    } elsif ($type eq "blank") {
	_ "bunzip2 -c $instdir/init-data/msgboot-blank.img.bz2 > $img";
    } else {
	_ "bunzip2 -c $instdir/init-data/msgboot-graphicallogo.img.bz2 > $img";
    }


    _ "$sudo mount -t vfat -o umask=0 $img $mnt -o loop";
    _ "cat $kernel > $mnt/vmlinuz" if $type !~ /blank/;

    my $rdz = $img; $rdz =~ s/\.img/.rdz/;
    initrd("${mnt}2", $rdz) if !-e $rdz;
    eval { _ "cp -f $rdz $mnt/$type.rdz" };
    if ($@) {
	unlink "$mnt/$type.rdz";
	my $avail = (split ' ', `df $mnt`)[-3];
	my $s = int((-s $rdz) / 1024);
	die sprintf("not enough room for $rdz: need %dKB (available %dKB < needed %dKB)\n", $s - $avail, $avail, $s);
    }

    my $timeout = 72;
    output "$mnt/syslinux.cfg",
"default linux
prompt 1
timeout $timeout
display boot.msg
F1 help.msg
F2 advanced.msg
F3 boot.msg
" . join('', map {
"label $_->[0]
  kernel vmlinuz
  append initrd=$type.rdz $_->[1]
" } entries_append($type));

    _ "sync";
    _ "df $mnt";
}

sub boot_img_alpha {
    my ($mnt, $img) = @_;

    __ "$sudo umount $mnt 2>/dev/null";
    _ "dd if=/dev/zero of=$img bs=1k count=1440";
    _ "$mke2fs $img";
    _ "/sbin/e2writeboot $img /boot/bootlx";
    _ "$sudo mount -t ext2 $img $mnt -o loop";
    _ "cp -f vmlinux.gz $mnt" if $type !~ /blank/;
    -f "$type.rdz" ? _ "cp -f $type.rdz $mnt" : initrd("${mnt}2", "$mnt/$type.rdz");

    mkdir "$mnt/etc", 0777;
    output("$mnt/etc/aboot.conf", 
"0:vmlinux.gz initrd=$type.rdz rw $default_append $type
1:vmlinux.gz initrd=$type.rdz rw $default_append text $type
");
    _ "sync";
    _ "df $mnt";
}

sub boot_img_ia64 {
    my ($mnt, $img, $kernel) = @_;
	my $rdz = $img; $rdz =~ s/\.img/.rdz/;

    __ "$sudo umount $mnt 2>/dev/null";
    _ "dd if=/dev/zero of=$img bs=1k count=16384";
    _ "mkdosfs $img";
    _ "$sudo mount -t vfat $img $mnt -o loop,umask=000";
    _ "$sudo cp -f $kernel $mnt/vmlinux";
    _ "cp -f $rdz $mnt/$type.rdz";
    _ "$sudo cp -f tools/ia64/elilo.efi $mnt";
	output("$mnt/elilo.conf", "
prompt
timeout=50

image=vmlinux
        label=linux
        root=/dev/ram3
        initrd=$type.rdz
        append=\" ramdisk_size=120000\"
        read-only

image=vmlinux
        label=rescue
        root=/dev/ram3
        initrd=$type.rdz
        append=\" rescue ramdisk_size=120000\"
");
    _ "sync";
    _ "df $mnt";

}

sub boot_img_sparc {
    my ($mnt, $img) = @_;
    if ($type =~ /^live(.*)/) {
	#- hack to produce directly into /export the needed file for cdrom boot.
	my $dir = "/export";
	my $boot = "boot"; #- non-absolute pathname only!

	_ "mkdir -p $dir/$boot";
	_ "cp -f /boot/cd.b /boot/second.b $dir/$boot";
	_ "cp -f vmlinux$1 $dir/$boot/vmlinux$1";
	-f "live$1.rdz" ? _ "cp -f live$1.rdz $dir/$boot" : initrd("${mnt}2", "$dir/$boot/live$1.rdz");

	output("$dir/$boot/silo.conf", "
partition=1
default=linux
timeout=100
read-write
message=/$boot/boot.msg
image=\"cat /$boot/boot.msg\"
  label=1
  single-key
image=\"cat /$boot/general.msg\"
  label=2
  single-key
image=\"cat /$boot/expert.msg\"
  label=3
  single-key
image=\"cat /$boot/rescue.msg\"
  label=4
  single-key
image=\"cat /$boot/kickit.msg\"
  label=5
  single-key
image=\"cat /$boot/param.msg\"
  label=6
  single-key
image[sun4c,sun4d,sun4m]=/$boot/vmlinux
  label=linux
  alias=install
  initrd=/$boot/live.rdz
  append=\"ramdisk_size=32000 root=/dev/ram3\"
image[sun4c,sun4d,sun4m]=/$boot/vmlinux
  label=text
  initrd=/$boot/live.rdz
  append=\"ramdisk_size=32000 text root=/dev/ram3\"
image[sun4c,sun4d,sun4m]=/$boot/vmlinux
  label=expert
  initrd=/$boot/live.rdz
  append=\"ramdisk_size=32000 expert root=/dev/ram3\"
image[sun4c,sun4d,sun4m]=/$boot/vmlinux
  label=ks
  initrd=/$boot/live.rdz
  append=\"ramdisk_size=32000 ks root=/dev/ram3\"
image[sun4c,sun4d,sun4m]=/$boot/vmlinux
  label=rescue
  initrd=/$boot/live.rdz
  append=\"ramdisk_size=32000 rescue rw root=/dev/ram3\"
image[sun4u]=/$boot/vmlinux64
  label=linux
  alias=install
  initrd=/$boot/live64.rdz
  append=\"ramdisk_size=32000 root=/dev/ram3\"
image[sun4u]=/$boot/vmlinux64
  label=text
  initrd=/$boot/live64.rdz
  append=\"ramdisk_size=32000 text root=/dev/ram3\"
image[sun4u]=/$boot/vmlinux64
  label=expert
  initrd=/$boot/live64.rdz
  append=\"ramdisk_size=32000 expert root=/dev/ram3\"
image[sun4u]=/$boot/vmlinux64
  label=ks
  initrd=/$boot/live64.rdz
  append=\"ramdisk_size=32000 ks root=/dev/ram3\"
image[sun4u]=/$boot/vmlinux64
  label=rescue
  initrd=/$boot/live64.rdz
  append=\"ramdisk_size=32000 rescue rw root=/dev/ram3\"
");

	output("$dir/$boot/README", "
To Build a Bootable CD-ROM, try:
  mkisofs -R -o t.iso -s /$boot/silo.conf /export
");
    } elsif ($type =~ /^tftprd(.*)/) {
	my $dir = "/export";
	my $boot = "images";
	my $setarch = $1 ? "sparc64" : "sparc32";

	_ "mkdir -p $dir/$boot";
	-f "$type.rdz" or initrd("${mnt}2", "$type.rdz");
	_ "cp -f vmlinux$1.aout $dir/$boot/$type.img";
	_ "$setarch kernel$1/src/arch/sparc$1/boot/piggyback $dir/$boot/$type.img kernel$1/boot/System.map $type.rdz";
    } elsif ($type =~ /^tftp(.*)/) {
	my $dir = "/export";
	my $boot = "images";

	_ "mkdir -p $dir/$boot";
	_ "cp -f vmlinux$1.aout $dir/$boot/$type.img";
    } else {
	my $dir = "floppy";
	my ($ltype, $I) = $type =~ /(.*?)(64)/; $ltype ||= $type;

	__ "$sudo umount $mnt 2>/dev/null";
	_ "rm -rf $dir";
	_ "mkdir -p $dir";
	_ "cp -f /boot/fd.b /boot/second.b $dir";
	_ "cp -f vmlinuz$I $dir/vmlinux$I.gz" if $type !~ /blank/;
	-f "$type.rdz" ? _ "cp -f $type.rdz $dir" : initrd("${mnt}2", "$dir/$type.rdz");

	output("$dir/boot.msg", "
Welcome to Mandrake Linux 7.1

Press <Enter> to install or upgrade a system 7mMandrake Linux7m
");

	output("$dir/silo.conf", "
partition=1
default=linux
timeout=100
read-write
message=/boot.msg
image=/vmlinux$I.gz
  label=linux
  initrd=/$type.rdz
  append=\"ramdisk_size=32000 $ltype root=/dev/ram3\"
");
	_ "genromfs -d $dir -f /dev/ram -A 2048,/.. -a 512 -V \'DrakX boot disk\'";
	_ "$sudo mount -t romfs /dev/ram $mnt";
	_ "silo -r $mnt -F -i /fd.b -b /second.b -C /silo.conf";
	_ "$sudo umount $mnt";
	_ "dd if=/dev/ram of=$type.img bs=1440k count=1";
	_ "sync";
	_ "$sudo mount -t romfs /dev/ram $mnt";
	_ "df $mnt";
    }
}

sub boot_img_ppc {
    my ($mnt, $img, $kern, $modz) = @_;
    my $dir = "/export";
    my $boot = "boot"; #- non-absolute pathname only!
    my ($extension) = $modz =~ /.*\/([^\/]+)/;
    _ "mkdir -p $dir/$boot";
    _ "cp -f $kern $dir/$boot/vmlinux";
    _ "cp -f images/all.rdz$extension $dir/boot/all.gz";
    _ "cp -f tools/ppc/yaboot $dir/boot/yaboot";
	
	output("$dir/$boot/yaboot.conf", "
init-message = \"\\nWelcome to Mandrake Linux PPC!\\nHit <TAB> for boot options.\\n\\n\"
timeout = 150
default = install-novideo

image = cd:,\\\\\\\\vmlinux
    label = install-novideo
    root = /dev/ram3
    initrd = cd:,\\\\\\\\all.gz
    initrd-size = 32000
    append = \" video=ofonly\"
    
image = cd:,\\\\\\\\vmlinux
    label = install-atyfb
    root = /dev/ram3
    initrd = cd:,\\\\\\\\all.gz
    initrd-size = 32000
    append = \" video=atyfb:vmode:17\"
    
image = cd:,\\\\\\\\vmlinux
    label = install-aty128fb
    root = /dev/ram3
    initrd = cd:,\\\\\\\\all.gz
    initrd-size = 32000
    append = \" video=aty128fb:vmode:17\"

image = cd:,\\\\\\\\vmlinux
    label = install-text
    root = /dev/ram3
    initrd = cd:,\\\\\\\\all.gz
    initrd-size = 32000
    append = \" text video=ofonly\"

image = enet:0,vmlinux
    label = install-net
    root = /dev/ram3
    initrd = enet:0,all.gz
    initrd-size = 32000
    append = \" video=ofonly\"

image = enet:0,vmlinux
    label = install-net-text
    root = /dev/ram3
    initrd = enet:0,all.gz
    initrd-size = 32000
    append = \" text video=ofonly\"

image = cd:,\\\\\\\\vmlinux
    label = rescue
    root = /dev/ram3
    initrd = cd:,\\\\\\\\all.gz
    initrd-size = 32000
    append = \" rescue video=ofonly\"    

image = enet:0,vmlinux
    label = rescue-net
    root = /dev/ram3
    initrd = enet:0,all.gz
    initrd-size = 32000
    append = \" rescue video=ofonly\"    
");
	#- seem to need 2 yaboot.conf, one in the root, and one in boot
	_ "cp -f $dir/boot/yaboot.conf $dir/yaboot.conf";		

	output("$dir/$boot/README", "
To Build a Bootable CD-ROM, do:
cd /tools/ppc
./mkINSTALLCD /export ppc-cd.img
");

}

sub isolinux {
    my ($main, @kernels) = @_;
    @kernels = ($main, grep { $_ ne $main } @kernels);
    my $debug = 1 ? '-debug' : '';
    _ "rm -rf isolinux"; mkdir "isolinux", 0777;
    my $i = 0;
    foreach (@kernels) {
	mkdir "isolinux/alt$i", 0777;
	my ($kernel) = glob("kernel/all.kernels/$_/boot/vmlinu*");
	_ "cp $kernel isolinux/alt$i/vmlinuz";
	_ "cp images/all.rdz-$_ isolinux/alt$i/all.rdz";
	$i++;
    }
    if (-e "isolinux-graphic.bmp") {
	#- change here for newer picture isolinux-graphic.bmp and newer parameters.
	_ "lilo-bmp2mdk mode:0x103 progress:425,173,16,9,64+2 clear:600,800,64+2 pos:0,0 <isolinux-graphic.bmp >isolinux/boot.msg";
    }
    _ "cp /usr/lib/syslinux/isolinux$debug.bin isolinux/isolinux.bin";
    output "isolinux/isolinux.cfg", "
default linux
prompt 1
timeout 150
" . (-e "isolinux/boot.msg" ? "display boot.msg
F1 help.msg" : "display help.msg") . "
" . join('', map { 
"label $_->[0]
  kernel alt0/vmlinuz
  append initrd=alt0/all.rdz $_->[1] automatic=method:cdrom
" } entries_append('all'))
  . join('', map_index { 
"label alt$::i
  kernel alt$::i/vmlinuz
  append initrd=alt$::i/all.rdz $default_append $default_vga
" } @kernels);

    output "isolinux/help.msg", (-e "isolinux/boot.msg" && pack "C*", 0x0E, 0x03, 0x00) .
"Welcome to Mandrake Linux Installation.

If you want more installations options (install from hard
disk, network, etc), select the kernel you wish to use for
this installation. Or you may just type Enter, so that the
automatic CDROM installation will proceed, with the default
kernel ($main).

" . join('', map_index { "\"alt$::i\" is kernel $_\n" } @kernels);
}