#!/bin/bash
#
# simplive64: distro live em 64 bits usando initrd
# feedback: rhatto at riseup.net | gpl
#
# Nota: ao testar no qemu, nao esqueca de passar a opcao "-m 290",
#       senao o sistema nao tera memoria suficiente
#
# Veja o arquivo README para mais informacoes.
# Ultima atualizacao: 26/10/2006
#

ISO_DIR="/phreak/backup"
PACKAGE_DIR="/phreak/apps"
ISOS="$PACKAGE_DIR/distros"
FOLDER="/phreak/projetos/distros/simplive"
MNT="/mnt"
INITRD_MNT="simplive"

if [ -z "$SLAMD" ]; then
  VERSION="`cat /etc/slackware-version | awk '{ print $2 }' | sed -e 's/.0$//'`"
  SLAMD_VERSION="$VERSION"
else
  VERSION="$SLAMD"
  SLAMD_VERSION="$VERSION"
fi

if [ -z "$SLACK" ]; then
  SLACK_VERSION="$VERSION"
else
  SLACK_VERSION="$SLACK"
fi

if [ -z "$TEMPLATE" ]; then
  TEMPLATE="simplive"
fi

if [ -z "$KERNEL" ]; then
  KERNEL="/boot/vmlinuz"
fi

if [ -z "$PACKAGES" ]; then
  PACKAGES="1"
fi

if [ -z "$INITRD_SIZE" ]; then
  # max: 300M ou edite o isolinux.cfg
  INITRD_SIZE="300M"
fi

echo Criando o sistema live...

mkdir -p $MNT/slamd64-{1,2}
mkdir -p $MNT/slackware-{1,2}

for iso in 1 2 3 4; do
  if [ -f "$PACKAGE_DIR/distros/slamd64-$VERSION/slamd64-$VERSION-disk$iso.iso" ]; then
    mount -o loop $PACKAGE_DIR/distros/slamd64-$VERSION/slamd64-$VERSION-disk$iso.iso /mnt/slamd64-$iso
  elif [ -f "$PACKAGE_DIR/distros/slamd64-$VERSION/slamd64-$VERSION-install-d$iso.iso" ]; then
    mount -o loop $PACKAGE_DIR/distros/slamd64-$VERSION/slamd64-$VERSION-install-d$iso.iso /mnt/slamd64-$iso
  fi
  if [ -f "$PACKAGE_DIR/distros/slackware-$SLACK_VERSION/slackware-$SLACK_VERSION-install-d$iso.iso" ]; then
    mount -o loop $PACKAGE_DIR/distros/slackware-$SLACK_VERSION/slackware-$SLACK_VERSION-install-d$iso.iso /mnt/slackware-$iso
  fi
done

cd $FOLDER

# ARCH=x86_64 VERSION=10.2 ROOT=$FOLDER mkjail initrd-tree $TEMPLATE
# umount $FOLDER/initrd-tree/proc 

# isolinux stuff
cp $KERNEL tree/boot/vmlinuz 
 
# initrd stuff
mkdir -p $MNT/$INITRD_MNT
dd if=/dev/zero of=tree/boot/initrd bs=$INITRD_SIZE count=1
mkfs.ext3 -F tree/boot/initrd
mount -o loop tree/boot/initrd $MNT/$INITRD_MNT
ARCH=x86_64 VERSION=$SLAMD_VERSION ROOT=$MNT mkjail $INITRD_MNT $TEMPLATE
umount $MNT/$INITRD_MNT
echo Gzipping initrd...
cd tree/boot
if [ -f "initrd.gz" ]; then
  rm initrd.gz
fi
gzip -9 initrd

# teste da initrd
# mkisofs -o simplive.iso -v -J -R -D -A simplive -V simplive -no-emul-boot -boot-info-table \
#         -boot-load-size 4 -b boot/isolinux.bin -c boot/isolinux.boot tree/

if [ "$PACKAGES" == "1" ]; then
  echo Criando os repositorios...
  cd $FOLDER/tree
  mkdir packages distros
  rsync -av --delete --exclude=.svn \
        $PACKAGE_DIR/packages/patches/ packages/patches/
  rsync -av --delete --exclude=.svn \
        $PACKAGE_DIR/packages/slamd64/slamd64-$VERSION/ packages/slamd64-$VERSION/
  rsync -av --delete --exclude=.svn \
        $PACKAGE_DIR/packages/slackware/slackware-$SLACK_VERSION/ packages/slackware-$SLACK_VERSION/
  rsync -av --exclude=kernels --exclude=isolinux $MNT/slamd64-1/ distros/slamd64-$SLAMD_VERSION-1/
  rsync -av --exclude=pasture --exclude=source --exclude=kernels $MNT/slamd64-2/ distros/slamd64-$SLAMD_VERSION-2/
  rsync -av --exclude=kernels --exclude=source $MNT/slamd64-3/ distros/slamd64-$SLAMD_VERSION-3/
  rsync -av --exclude=kernels --exclude=isolinux $MNT/slackware-1/ distros/slackware-$SLACK_VERSION-1/
  rsync -av --exclude=rootdisks --exclude=bootdisks --exclude=extra $MNT/slackware-2/ distros/slackware-$SLACK_VERSION-2/
  # rsync -av --exclude=testing--exclude=extra --exclude=extra $MNT/slackware-3/ distros/slackware-$SLACK_VERSION-3/
else
  rm -rf $FOLDER/tree/distros $FOLDER/tree/packages
fi

echo Criando a imagem...

cd $FOLDER
mkisofs -o $ISO_DIR/simplive.iso -v -J -R -D -A simplive -V simplive -no-emul-boot -boot-info-table \
        -boot-load-size 4 -b boot/isolinux.bin -c boot/isolinux.boot tree/

if [ "$PACKAGES" == "1" ]; then
  echo Apagando $FOLDER/tree/{distros,packages,opt}...
  rm -rf $FOLDER/tree/{distros,packages,opt}
  echo Apagando $FOLDER/tree/boot/initrd.gz...
  rm $FOLDER/tree/boot/initrd.gz
fi

umount $MNT/slamd64-{1,2,3}
umount $MNT/slackware-{1,2,3}

# purge the package cache
ARCH=x86_64 VERSION=$SLAMD_VERSION simplaret --purge

echo Para gravar num DVD, use: growisofs -dvd-compat -Z /dev/dvd=simplive.iso
echo Para gravar num CD, use: cdrecord -v dev=/dev/cdrom simplive.iso