#!/bin/bash

# Copyright 2010, 2011, 2014, 2016  Robby Workman, Northport, Alabama, USA
# Copyright 2013, 2014, 2015, 2016, 2018, 2020  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.

# Modified 2011, 2012  by Eric Hameleers, Eindhoven, NL

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=NetworkManager
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z* | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}

# Automatically determine the architecture we're building on:
MARCH=$( uname -m )
if [ -z "$ARCH" ]; then
  case "$MARCH" in
    i?86)    export ARCH=i586 ;;
    armv7hl) export ARCH=$MARCH ;;
    arm*)    export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *)       export ARCH=$MARCH ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

NUMJOBS=${NUMJOBS:-" -j$(expr $(nproc) + 1) "}

TMP=${TMP:-/tmp}
PKG=$TMP/package-$PKGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "armv7hl" ]; then
  SLKCFLAGS="-O2 -march=armv7-a -mfpu=vfpv3-d16"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS=${SLKCFLAGS:-"-O2"}
  LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
fi

case "$ARCH" in
    arm*) TARGET=$ARCH-slackware-linux-gnueabi ;;
    *)    TARGET=$ARCH-slackware-linux ;;
esac

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z* || exit 1
cd $PKGNAM-$VERSION || exit 1
chown -R root:root .
find . \
 \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
 -exec chmod 755 {} \+ -o \
 \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
 -exec chmod 644 {} \+

# Find the version number for pppd, used to specify the plugin directory:
PPPD=$(echo /usr/lib${LIBDIRSUFFIX}/pppd/?.?.? | rev | cut -f 1 -d / | rev)

# Apply bugfix patches from upstream git:
for dfile in $CWD/patches/* ; do 
  zcat $dfile | patch -p1 --verbose || exit 1
done

# For git-patched builds
autoreconf -vif
automake
./autogen.sh

# Configuring --enable-json-validation --enable-ovs requires the Jansson
# json-c library. If there's any interest or usefulness with that, let me
# know. The library is fairly small, but in order to actually use team
# interfaces will probably require more stuff (not sure how much).
#
# Update September 2018: Added those options since we needed Jansson
# already for HTTP/2 support.

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PKGNAM-$VERSION \
  --with-udev-dir=/lib/udev \
  --with-pppd-plugin-dir=/usr/lib${LIBDIRSUFFIX}/pppd/$PPPD \
  --with-crypto=nss \
  --enable-more-warnings=no \
  --without-resolvconf \
  --with-dhcpcd=/sbin/dhcpcd \
  --with-dhclient=yes \
  --with-modem-manager-1=yes \
  --with-nmtui=yes \
  --enable-json-validation \
  --enable-ovs \
  --with-consolekit=no \
  --with-session-tracking=elogind \
  --with-suspend-resume=elogind \
  --with-hostname-persist=slackware \
  --build=$TARGET || exit 1

make $NUMJOBS || exit 1
make install DESTDIR=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

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

# Fix hardlinked manpages:
( cd $PKG/usr/man/man1
  ln -sf nmtui.1 nmtui-connect.1
  ln -sf nmtui.1 nmtui-edit.1
  ln -sf nmtui.1 nmtui-hostname.1
  cd ../man5
  ln -sf NetworkManager.conf.5 nm-system-settings.conf.5
)

find $PKG/usr/man -type f -exec gzip -9 {} \+
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

# In case NetworkManager tries to install something here:
rm -f $PKG/etc/rc.d/rc.networkmanager

# Don't clobber existing rc.networkmanager
# Don't run NetworkManager by default just because it got installed.
# Instead, the init script will have to be made executable first.
# This should avoid nasty surprises on potentially remotely located machines.
mkdir -p $PKG/etc/rc.d
cat $CWD/rc.networkmanager > $PKG/etc/rc.d/rc.networkmanager.new
chmod 0644 $PKG/etc/rc.d/rc.networkmanager.new

# Move dbus configs to system location:
mkdir -p $PKG/usr/share/dbus-1/system.d/
mv $PKG/etc/dbus-1/system.d/* $PKG/usr/share/dbus-1/system.d/
rmdir --parents $PKG/etc/dbus-1/system.d/

# Add default (plain) config file to enable keyfile plugin
cat $CWD/NetworkManager.conf > $PKG/etc/NetworkManager/NetworkManager.conf.new

# Set dhcp client to "dhcpcd" and rc-manager to "file" by default
mkdir -p $PKG/etc/NetworkManager/conf.d
cat $CWD/conf.d/00-dhcp-client.conf > $PKG/etc/NetworkManager/conf.d/00-dhcp-client.conf.new
cat $CWD/conf.d/00-rc-manager.conf > $PKG/etc/NetworkManager/conf.d/00-rc-manager.conf.new

# Add default polkit rules for NM
mkdir -p $PKG/usr/share/polkit-1/rules.d/
cat $CWD/10-org.freedesktop.NetworkManager.rules > $PKG/usr/share/polkit-1/rules.d/10-org.freedesktop.NetworkManager.rules

mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a \
  AUTHORS CONTRIBUTING COPYING ChangeLog INSTALL NEWS README TODO \
  $PKG/usr/doc/$PKGNAM-$VERSION

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r ChangeLog ]; then
  cat ChangeLog | head -n 1000 > $PKG/usr/doc/$PKGNAM-$VERSION/ChangeLog
  touch -r ChangeLog $PKG/usr/doc/$PKGNAM-$VERSION/ChangeLog
fi

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg --prepend -l y -c n $OUTPUT/$PKGNAM-$VERSION-$ARCH-$BUILD.txz