#!/bin/bash

set -x

# $1 is the name of the lilo kernel image

attempt(){
    logger mkkernel `pwd`: attempting $1

    if [ "%$DISTCC_HOSTS%" == "%%" ]
    then
      jarg=""
    else
      jarg="-j 7 CC=distcc"
    fi

    if [ "%$1%" == "%menuconfig%" ]
    then
      make $jarg $1
    else
      make $jarg $1 # | tee - /tmp/mkkernel-$1-$jarg
    fi
    die $?
}

die(){
    if [ $1 -gt 0 ]
    then
	logger mkkernel `pwd`: died with exit code $1
	exit $1
    fi
}

if [ "%$1%" == "%%" ]
then
  echo "You didn't specify a kernel image name"
  exit 1
fi

logger mkkernel `pwd`: starting
logger mkkernel `pwd`: dirty status "("$2")"

if [ "%$2%" == "%dirty%" ]
then
  echo "Skipping kernel reconfiguration"
else
  attempt clean
  attempt mrproper
  attempt menuconfig
  attempt dep
fi

attempt ""
attempt modules
attempt modules_install
attempt bzImage

cp arch/i386/boot/bzImage /boot/vmlinuz-$1

if [ `grep "label=$1" /etc/lilo.conf | wc -l | tr -d " "` -lt 1 ]
then
  echo "Tweaking lilo config"
  cp /etc/lilo.conf /etc/lilo.conf.bck
  echo "" >> /etc/lilo.conf
  echo "image=/boot/vmlinuz-$1" >> /etc/lilo.conf
  echo "        label=$1" >> /etc/lilo.conf
  echo "        read-only" >> /etc/lilo.conf
fi

/sbin/lilo
echo "Installed $1"

if [ -d /data/staging/kernel ]
then
  if [ -d /data/staging/kernel/$1 ]
  then
    rm -rf /data/staging/kernel/$1
  fi

  mkdir /data/staging/kernel/$1
  echo "" >> /data/staging/kernel/$1/lilo.conf
  echo "image=/boot/vmlinuz-$1" >> /data/staging/kernel/$1/lilo.conf
  echo "        label=$1" >> /data/staging/kernel/$1/lilo.conf
  echo "        read-only" >> /data/staging/kernel/$1/lilo.conf

  cp /boot/vmlinuz-$1 /data/staging/kernel/$1/

  kver=`echo $1 | sed 's/-.*//'`
  if [ -d /data/staging/kernel/$1/$kver ]
  then
    rm -rf /data/staging/kernel/$1/$kver
  fi
  cp -R /lib/modules/$kver /data/staging/kernel/$1/
fi