#!/bin/sh

# Copyright 2006, 2008, 2009  Patrick J. Volkerding, Sebeka, MN, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


VERSION=${VERSION:-2.6.33.4}
ARCH=${ARCH:-x86_64}
BUILD=${BUILD:-1}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-kernel-modules

rm -rf $PKG
mkdir -p $TMP $PKG

echo "Using /lib/modules/${VERSION}/"
echo "Make sure these are *ready*... compressed, or not."
echo "However you want 'em."
sleep 5
mkdir -p $PKG/lib/modules
cp -a /lib/modules/${VERSION} $PKG/lib/modules
mkdir -p $PKG/etc/rc.d
cat $CWD/rc.modules.new > $PKG/etc/rc.d/rc.modules-${VERSION}.new
chmod 755 $PKG/etc/rc.d/rc.modules-${VERSION}.new

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

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

cd $PKG
/sbin/makepkg -l y -c n $TMP/kernel-modules-${VERSION}-$ARCH-$BUILD.txz