#!/bin/bash
#
#    Copyright (C) 2006 - 2009  Brian Brazil
#    Copyright (C) 2009  Karl Goetz
#
#    This program is free software; you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation; either version 2 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
#
# Took commands from the debian-live project in July 2006
# It carried the following notice:
#
# Copyright (C) 2006 Daniel Baumann <daniel@debian.org>
# Copyright (C) 2006 Marco Amadori <marco.amadori@gmail.com>
#
# make-live comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
# This is free software, and you are welcome to redistribute it
# under certain conditions; see COPYING for details.



. config

if [ $UID != 0 ]; then
	echo 'This script must be run as root'
	exit 1
fi

BASEDIR=`pwd`
LIVECDNAME=$DISTRONAME
LIVECDNAME_L=$DISTRONAME_L

# Check if the cd build chroot /proc is mounted
# If mounted, unmount it
if [[ -f $LIVECDDIR/chroot-$ARCHTOBUILD/proc/version ]]; then
	umount $LIVECDDIR/chroot-$ARCHTOBUILD/proc
fi

# to create different variables for other Desktop Managers

if [ -n "$1" ]; then
	. livecd-variants/$DISTRONAME_L-$1.variables
fi

# Various possible customisations
LIVECDUSERNAME=${LIVECDUSERNAME:-$RELEASE}
LIVECD_ISO_PREFIX=${LIVECD_ISO_PREFIX:-$LIVECDNAME_L}

rm -rf $LIVECDDIR
mkdir -p $LIVECDDIR
cd $LIVECDDIR 

cp -r /usr/share/cdebootstrap .
cat << EOF >> cdebootstrap/suites
Suite: $RELEASE
Config: $RELEASE
EOF

chroots ()
{
	# Execute commands in chroot
	chroot ./chroot-$ARCHTOBUILD /usr/bin/env -i HOME=/root TERM=${TERM} \
	PATH=/usr/sbin:/usr/bin:/sbin:/bin DEBIAN_PRIORITY=critical ${1}
}
cp -r cdebootstrap/generic/ cdebootstrap/$RELEASE
cdebootstrap -v --allow-unauthenticated --keyring= --arch=$ARCHTOBUILD --flavour=minimal -c cdebootstrap/ $RELEASE chroot-$ARCHTOBUILD $REPOAPT
# Now have full chroot

mkdir -p cdroot-$ARCHTOBUILD/image/casper/

cat << EOF > chroot-$ARCHTOBUILD/etc/apt/sources.list
deb $REPOAPT $RELEASE main universe
# deb-src $REPOAPT $RELEASE main universe
deb $REPOAPT $RELEASE-security main universe
# deb-src $REPOAPT $RELEASE-security main universe
EOF
# Used by gen-cdsource
cp chroot-$ARCHTOBUILD/etc/apt/sources.list sources.list

trap "umount -f $PWD/chroot-$ARCHTOBUILD/proc" ERR INT TERM
mount -t proc proc ./chroot-$ARCHTOBUILD/proc

chroots "apt-get update"
chroots "apt-get install --yes --force-yes gnupg"
gpg -a --export $SIGNINGKEY | chroots "apt-key add -"
chroots "apt-get update"

echo "do_initrd = Yes" > chroot-$ARCHTOBUILD/etc/kernel-img.conf
chroots "apt-get install --yes syslinux linux-image-generic casper udev debconf-utils"

# Hack
sed -i -e "s#USERNAME=.*#USERNAME=$LIVECDUSERNAME#;" \
	-e "s#USERFULLNAME=.*#USERFULLNAME='$LIVECDNAME LiveCD user'#;" \
	-e "s#HOST=.*#HOST=$LIVECDNAME_L#;" \
	-e "s#BUILD_SYSTEM=.*#BUILD_SYSTEM=Builder#;" \
	chroot-$ARCHTOBUILD/etc/casper.conf
# Add NOPASSWD so livecd user doesn't see password prompts
sed -i -e "s/Ubuntu/Builder/" chroot-$ARCHTOBUILD/usr/share/initramfs-tools/scripts/casper-bottom/10adduser

chroots "dpkg-reconfigure `basename chroot-$ARCHTOBUILD/var/lib/dpkg/info/linux-image-2.6.*.postinst .postinst`"

# Preseed some values
cat <<EOF | chroots debconf-set-selections
ubiquity        debian-installer/country        string IE
ubiquity        debian-installer/language       string en_IE:en
ubiquity        debian-installer/keymap         string gb
ubiquity        time/zone                       select Europe/Dublin
xserver-xorg    xserver-xorg/config/inputdevice/keyboard/layout string gb
EOF

# General software
chroots "apt-get install --yes ${DISTRONAME_L}-minimal ${DISTRONAME_L}-standard"
# This needs 'special' attention to avoid a critical debconf question
chroots "apt-get install --yes dictionaries-common"
chroots "apt-get install --yes ${LIVECDNAME_L}-desktop"
# ubiquity uses these to control what packages on the LiveCD are installed on the target system
# Install any pacakges you want installed on the target system before this line
chroots "dpkg --get-selections" | sed -ne 's/\t\t*install$//p' | sort > ./cdroot-$ARCHTOBUILD/image/casper/filesystem.manifest-desktop

chroots "apt-get install --yes ${LIVECD_EXTRAS}"
chroots "dpkg --get-selections" | sed -ne 's/\t\t*install$//p' | sort > ./cdroot-$ARCHTOBUILD/image/casper/filesystem.manifest
# Provide a default package list for users.
chroots "dpkg --get-selections > ./cdroot-$ARCHTOBUILD/root/default-package-selection"

chroots "apt-get clean"
cat << EOF > chroot-$ARCHTOBUILD/etc/apt/sources.list
# From gen-livecd
deb http://archive.$DOMAIN/$DISTRONAME_L/ $RELEASE main universe
deb-src http://archive.$DOMAIN/$DISTRONAME_L/ $RELEASE main universe
deb http://security.$DOMAIN/$DISTRONAME_L/ $RELEASE-security main universe
deb-src http://security.$DOMAIN/$DISTRONAME_L/ $RELEASE-security main universe
EOF

chroots /etc/cron.daily/mlocate 

# Fix problem with NPTL not being detected
rm -f chroot-$ARCHTOBUILD/etc/ld.so.nohwcap

# Enable daemons
chroots "dpkg -P cdebootstrap-helper-diverts"

# Do anything needed with the filesystem above this line
umount $PWD/chroot-$ARCHTOBUILD/proc

mkdir -p cdroot-$ARCHTOBUILD/image/casper
rm -f cdroot-$ARCHTOBUILD/image/casper/filesystem.squashfs
mksquashfs chroot-$ARCHTOBUILD cdroot-$ARCHTOBUILD/image/casper/filesystem.squashfs

mkdir -p cdroot-$ARCHTOBUILD/image/isolinux
cp chroot-$ARCHTOBUILD/usr/lib/syslinux/isolinux.bin cdroot-$ARCHTOBUILD/image/isolinux

echo "$LIVECD_VERSION ($LIVECDNAME $ARCHTOBUILD $RELEASE)" > cdroot-$ARCHTOBUILD/image/LIVECD_VERSION
cat <<EOF > cdroot-$ARCHTOBUILD/image/README
$DISTRONAME - $TAGLINE

This is a $LIVECDNAME LiveCD and installer for the $DISTRONAME GNU/Linux
distribution. More information about $DISTRONAME can be found on our 
website at http://www.$DOMAIN/

This LiveCD was generated with the gNewSense Builder.
EOF

# Get the bootsplash etc. for syslinux
cp -a $BASEDIR/syslinux/isolinux.{cfg,txt} cdroot-$ARCHTOBUILD/image/isolinux
for i in $BASEDIR/syslinux/f*.txt; do
	sed "s/DISTRONAME/$DISTRONAME/g;
	s/LIVECDNAME/$LIVECDNAME/g;
	s/RELEASE/$RELEASE/g;
	s/LIVECD_VERSION/$LIVECD_VERSION/g;
	s/DOMAIN/$DOMAIN/g;
	s/LIVE_DATE/`date +%Y%m%d`/g;
	" $i > cdroot-$ARCHTOBUILD/image/isolinux/`basename $i`
done
convert -size 640x320 xc:black -fill $LOGO_COLOUR -gravity SouthWest -draw "text 2,2 '$DISTRONAME $LIVECD_VERSION ($RELEASE) LiveCD $ARCHTOBUILD'" -pointsize 24 -gravity Center -draw "text 30,50 '$TAGLINE'" -pointsize 72 -draw "text 0,0 '$LIVECDNAME'" -colors 10 cdroot-$ARCHTOBUILD/image/isolinux/splash.pcx
pcxtoppm < cdroot-$ARCHTOBUILD/image/isolinux/splash.pcx | ppmtolss16 "#dddddd=7" > cdroot-$ARCHTOBUILD/image/isolinux/splash.rle
rm cdroot-$ARCHTOBUILD/image/isolinux/splash.pcx

rm -f chroot-$ARCHTOBUILD/boot/*.bak
cp chroot-$ARCHTOBUILD/boot/vmlinuz-* cdroot-$ARCHTOBUILD/image/isolinux/vmlinuz
cp chroot-$ARCHTOBUILD/boot/initrd.img-* cdroot-$ARCHTOBUILD/image/isolinux/initrd.gz
cp chroot-$ARCHTOBUILD/boot/memtest86+.bin cdroot-$ARCHTOBUILD/image/isolinux/memtest

mkisofs -o $REPODST/cdimage/$LIVECD_ISO_PREFIX-livecd-$RELEASE-$ARCHTOBUILD-$LIVECD_VERSION.iso -r -J -l \
		-V "$LIVECDNAME LiveCD $LIVECD_VERSION $ARCHTOBUILD" -b isolinux/isolinux.bin \
		-c isolinux/boot.cat -no-emul-boot -boot-load-size 4 \
		 -boot-info-table cdroot-$ARCHTOBUILD/image

# Here we stage the cd image
cd $REPODST/cdimage
btmakemetafile.bittornado http://torrent.$DOMAIN:6969/announce --announce_list "$BITTORRENT_ANNOUNCE_LIST" $LIVECD_ISO_PREFIX-livecd-$RELEASE-$ARCHTOBUILD-$LIVECD_VERSION.iso
sed -i "/ $LIVECD_ISO_PREFIX-livecd-$RELEASE-$ARCHTOBUILD-$LIVECD_VERSION.iso$/d" MD5SUMS || true	# Might not exist yet
md5sum $LIVECD_ISO_PREFIX-livecd-$RELEASE-$ARCHTOBUILD-$LIVECD_VERSION.iso >> MD5SUMS
sed -i "/ $LIVECD_ISO_PREFIX-livecd-$RELEASE-$ARCHTOBUILD-$LIVECD_VERSION.iso$/d" SHA256SUMS || true  # Might not exist yet
sha256sum $LIVECD_ISO_PREFIX-livecd-$RELEASE-$ARCHTOBUILD-$LIVECD_VERSION.iso >> SHA256SUMS