#!/bin/sh
# Set initial variables:
CWD=`pwd`
if [ "$TMP" = "" ]; then
  TMP=/tmp
fi
PKG=$TMP/package-kernel-modules
rm -rf $PKG
mkdir -p $PKG/install

VERSION=2.6.17.13
ARCH=${ARCH:-s390x}
PARCH=${ARCH}
if [ "x$ARCH" == "xs390x" ]; then
  ARCH="s390"
fi
BUILD=${BUILD:-1}

if [ ! -d $TMP ]; then
  mkdir -p $TMP # location to build the source
fi

cd $TMP
rm -rf kernel-modules-${VERSION}
mkdir -p kernel-modules-${VERSION}/usr/src
cd  kernel-modules-${VERSION}/usr/src
tar -jxvf $CWD/../linux-${VERSION}.tar.bz2
chown -R root:root .
find . -type f -perm 666 | xargs chmod 644
find . -type f -perm 777 | xargs chmod 755
ln -sf linux-${VERSION} linux
cd linux-${VERSION}
cp $CWD/../kernel-source/s390.default.config .config
make oldconfig || exit 1
make -j3 modules || exit 1
make modules_install INSTALL_MOD_PATH=$PKG || exit 1
( mkdir -p $PKG/etc/rc.d/
  cd $PKG/etc/rc.d/
  cp $CWD/rc.modules.new . 
  cat $CWD/rc.modules.s390.diff | patch -p0 --verbose
  mv rc.modules.new rc.modules-${VERSION}.new
)

( cd $PKG/lib/modules/$VERSION
  rm -rf build  ; ln -s /usr/src/linux-$VERSION build
  rm -rf source ; ln -s /usr/src/linux-$VERSION source
  find . -type f -name "*.ko" | xargs gzip -9
)
depmod -a -b $PKG $VERSION

cd $PKG
cat $CWD/slack-desc > install/slack-desc

# Write out the doinst.sh:
cat << EOF > install/doinst.sh
config() {
  NEW="\$1"
  OLD="\$(dirname \$NEW)/\$(basename \$NEW .new)"
  # If there's no config file by that name, mv it over:
  if [ ! -r \$OLD ]; then
    mv \$NEW \$OLD
  elif [ "\$(cat \$OLD | md5sum)" = "\$(cat \$NEW | md5sum)" ]; then # toss the redundant copy
    rm \$NEW
  fi
  # Otherwise, we leave the .new copy for the admin to consider...
}

config etc/rc.d/rc.modules-${VERSION}.new

# If rc.modules is a real file, back it up:
if [ -r etc/rc.d/rc.modules -a ! -L etc/rc.d/rc.modules ]; then
  cp -a etc/rc.d/rc.modules etc/rc.d/rc.modules.bak 
fi
# Make rc.modules a symlink if it's not already, but do not replace
# an existing symlink.  You'll have to decide to point at a new version
# of this script on your own...
if [ ! -L etc/rc.d/rc.modules ]; then
  ( cd etc/rc.d ; rm -rf rc.modules )
  ( cd etc/rc.d ; ln -sf rc.modules-${VERSION} rc.modules )
fi

# A good idea whenever kernel modules are added or changed:
if [ -x sbin/depmod ]; then
  chroot . /sbin/depmod -a ${VERSION} 1> /dev/null 2> /dev/null
fi

EOF

makepkg -l y -c y ../kernel-modules-${VERSION}-${PARCH}-${BUILD}.tgz