#!/bin/sh

if [ $# -ne 3 ];then

	echo Usage: $0 kerndir base stackname 1>&2

	exit 1

fi

kerndir=$1

base=$2

stackname=$3

set -x

echo "Copying initial base files..."

cp -aur $base/* .

echo "Setting stack name to '$stackname'..."

sed -i 's/^stackname = .*/stackname = "'${stackname}'"/' SConscript || exit 1

sed -i 's/get_name() { return ".*"/get_name() { return "'${stackname}'"/' \

  nsc/sim_support.cpp || exit 1

if grep -q 'SConscript("'$(basename `pwd`)'/SConscript")' ../SConstruct

then

  echo " - SConstruct file already updated."

else

  echo 'SConscript("'$(basename `pwd`)'/SConscript")' >> ../SConstruct || exit 1

fi

echo "Cleaning..."

# python ../scons.py -uqc || exit 1

echo "Copying kernel source..."

mkdir -p arch/x86/include && cp -r ${kerndir}/arch/x86/include arch/x86 || exit 1

cp -r ${kerndir}/include/asm-generic/ include/ || exit 1

cp -r ${kerndir}/include/net/ include/ || exit 1

cp -r ${kerndir}/include/linux/ include/ || exit 1

find . -type f -name '*.[ch]' | grep -v "nsc/" |

  while read file

  do

    if [ -f ${kerndir}/$file ]; then

      chmod u+w ${file}

      echo ${kerndir}/${file} -> ${file}

      cp ${kerndir}/${file} ${file}

    else

      if echo ${file} | grep -E -q "linux/(autoconf|config).h"

      then

        echo " - ignoring ${file}..."

      else

        echo " - deleting ${file}..."

        rm ${file}

      fi

    fi

  done

echo "Patching..."

do

  echo " - $i"

  patch -p0 -i $i -t

done

echo "Ready."