#!/bin/sh

# Copyright 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=3.1.2p1
ARCH=${ARCH:-i486}
BUILD=${BUILD:-1}

NUMJOBS=${NUMJOBS:-" -j7 "}

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

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
fi

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

cd $TMP
rm -rf dhcp-$VERSION
tar xvf $CWD/dhcp-$VERSION.tar.gz || exit 1
cd dhcp-$VERSION || exit 1

./configure
make DEBUG="$SLKCFLAGS" || exit 1
make DEBUG="$SLKCFLAGS" install DESTDIR=$PKG || exit 1

mkdir -p $PKG/var/state/dhcp
rm -f $PKG/var/state/dhcp/dhcpd.leases
touch $PKG/var/state/dhcp/dhcpd.leases.new

rm -rf $PKG/usr/local

mkdir -p $PKG/usr/doc/dhcp-$VERSION
cp -a \
  LICENSE README RELNOTES \
  $PKG/usr/doc/dhcp-$VERSION
mkdir -p $PKG/usr/doc/dhcp-$VERSION/examples
cp -a client/dhclient.conf server/dhcpd.conf \
  $PKG/usr/doc/dhcp-$VERSION/examples
chown -R root:root $PKG/usr/doc/dhcp-$VERSION

cat << EOF > $PKG/etc/dhcpd.conf.new
# dhcpd.conf
#
# Configuration file for ISC dhcpd (see 'man dhcpd.conf')
#
EOF

cat << EOF > $PKG/etc/dhclient.conf.new
# dhclient.conf
#
# Configuration file for ISC dhclient (see 'man dhclient.conf')
#
EOF

cat client/scripts/linux > $PKG/sbin/dhclient-script
chmod 700 $PKG/sbin/dhclient-script

gzip -9 $PKG/usr/man/man?/*
find $PKG/usr/man -type f -exec chmod 644 {} \;

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat << EOF > $PKG/install/doinst.sh
#!/bin/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/dhcpd.conf.new
config etc/dhclient.conf.new
config var/state/dhcp/dhcpd.leases.new
rm -f var/state/dhcp/dhcpd.leases.new
EOF

# Build the package:
cd $PKG
/sbin/makepkg -l y -c n $TMP/dhcp-$VERSION-$ARCH-$BUILD.txz

# Clean up the extra stuff:
if [ "$1" = "--cleanup" ]; then
 rm -rf $TMP/dhcp-$VERSION
 rm -rf $PKG
fi