#!/bin/sh
# Copyright 2010, 2011, 2012, 2013  Eric Hameleers, Eindhoven. NL
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS 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.
# -----------------------------------------------------------------------------


PKGNAM=tigervnc
VERSION=${VERSION:-1.1.0}
BUILD=${BUILD:-1}
NUMJOBS=${NUMJOBS:" -j4 "}
TAG=${TAG:-}

# Do we build the java applet (needs jdk)?
DO_APPLET=${DO_APPLET:-"NO"}

# TigerVNC needs to use source of the X.Org server whose version matches
# that of your installed X.Org package:
XORG=${XORG:-$(X -version 2>&1 | grep "^X.Org X Server " | cut -f4 -d' ')}
MAXPATCHVER="$(echo $XORG | cut -f1,2 -d. | tr -d '.')"

# OS Stamp into the binaries:
OSNAME="$(head -1 /etc/slackware-version)"
OSVENDOR="Slackware Linux Project"
BUILDER="Built by Alien BOB on $(date -u)"

# This covers most filenames you'd want as documentation. Change if needed.
DOCS="LICENCE.TXT doc/TODO doc/*.txt doc/*.odt"
DOCS_XORG="COPYING ChangeLog"

if [ -e $CWD/machine.conf ]; then
  . $CWD/machine.conf ]
elif [ -e /etc/slackbuild/machine.conf ]; then
  . /etc/slackbuild/machine.conf ]
else
  # Automatically determine the architecture we're building on:
  MARCH=$( uname -m )
  if [ -z "$ARCH" ]; then
    case "$MARCH" in
      i?86)    export ARCH=i486 ;;
      arm*)    export ARCH=arm ;;
      # Unless $ARCH is already set, use uname -m for all other archs:
      *)       export ARCH=$MARCH ;;
    esac
  fi
  # Set CFLAGS/CXXFLAGS and LIBDIRSUFFIX:
  if [ "$ARCH" = "i486" ]; then
    SLKCFLAGS="-O2 -march=i486 -mtune=i686"
    LIBDIRSUFFIX=""
  elif [ "$ARCH" = "s390" ]; then
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
  elif [ "$ARCH" = "x86_64" ]; then
    SLKCFLAGS="-O2 -fPIC"
    LIBDIRSUFFIX="64"
  elif [ "$ARCH" = "arm" ]; then
    SLKCFLAGS="-O2 -march=armv5te"
    LIBDIRSUFFIX=""
  else
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
  fi
fi

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

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

rm -rf $PKG
mkdir -p $TMP $PKG
cd $TMP
rm -rf $PKGNAM-$VERSION
rm -rf xorg-server-${XORG}
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z* || exit 1
tar xvf $CWD/xorg-server-${XORG}.tar.?z* || exit 1
cd $PKGNAM-$VERSION || exit 1

# Move the xorg-server sources into the TigerVNC tree:
mv unix/xserver/hw/vnc ../xorg-server-${XORG}/hw/
rm -rf unix/xserver/hw
mv ../xorg-server-${XORG}/* unix/xserver/

# We have patches for X.Org later than 1.10 which tigervnc does not have:
for PATCHVER in 111 112 113 114 ; do
  if [ -e $CWD/patches/tigervnc$(echo $VERSION | cut -f1,2 -d. --output-delimiter=)-xorg${PATCHVER}.patch ]; then
    cp $CWD/patches/tigervnc$(echo $VERSION | cut -f1,2 -d. --output-delimiter=)-xorg${PATCHVER}.patch unix/xserver${PATCHVER}.patch
  fi
done

if [ $MAXPATCHVER -gt 110 ]; then
  if [ $MAXPATCHVER -lt 113 ]; then
    # The sed magic in the hw/vnc Makefile needs some love:
    # ... taken care of in the xserver113 patch if we ever move to X.Org 1.13.
    cat $CWD/patches/tigervnc$(echo $VERSION | cut -f1,2 -d. --output-delimiter=)-xorg_headers.patch | patch -p1 --verbose || exit 1
  else
    # We need to rewrite the xserver110.patch for X.Org 1.13 and newer:
    cp $CWD/patches/tigervnc$(echo $VERSION | cut -f1,2 -d. --output-delimiter=)-xorg110.patch unix/xserver110.patch
  fi
fi

# Patch the xorg-server source to include building the vnc driver
cd unix/xserver
  if [ $MAXPATCHVER -le 110 ]; then
    # apply one of the tigervnc-provided patches:
    cat ../xserver${MAXPATCHVER}.patch | patch -p1 --verbose || exit 1
  else
    # these external patches are incremental and must be applied in order:
    for PATCHVER in 110 111 112 113 114 ; do
      if [ $PATCHVER -le $MAXPATCHVER -a -e ../xserver${PATCHVER}.patch ]; then
        cat ../xserver${PATCHVER}.patch | patch -p1 --verbose || exit 1
      fi
    done
  fi
cd -

# We use Java7:
cat $CWD/patches/tigervnc11-java7.patch | patch -p1 --verbose || exit 1

# Explicitly put the java applet into a directory named 'tigervnc':
sed -i -e 's#/vnc/class#/tigervnc/class#'g $(grep -rl vnc/class .)

# Make sure ownerships and permissions are sane:
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 {} \;

export LDFLAGS="$SLKLDFLAGS -lpthread"
export CXXFLAGS="$SLKCFLAGS"
export CFLAGS="$SLKCFLAGS"

echo -e "\n*** Building tigervnc ***\n"
autoreconf -vif
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PKGNAM-$VERSION \
  --localstatedir=/var \
  --sysconfdir=/etc \
  --disable-static \
  --program-prefix= \
  --program-suffix= \
  --build=$TARGET

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

cd unix/xserver
  echo -e "\n*** Building xserver ***\n"
  export CXXFLAGS="$SLKCFLAGS -fpermissive"
  autoreconf -vif

  # Default font paths to be used by the X server
  DEF_FONTPATH="/usr/share/fonts/local,/usr/share/fonts/TTF,/usr/share/fonts/OTF,/usr/share/fonts/Type1,/usr/share/fonts/misc,/usr/share/fonts/CID,/usr/share/fonts/75dpi/:unscaled,/usr/share/fonts/100dpi/:unscaled,/usr/share/fonts/75dpi,/usr/share/fonts/100dpi,/usr/share/fonts/cyrillic"

  ./configure \
    --prefix=/usr \
    --libdir=/usr/lib${LIBDIRSUFFIX} \
    --sysconfdir=/etc \
    --localstatedir=/var \
    --mandir=/usr/man \
    --disable-dri \
    --disable-static \
    --disable-xorg --disable-xnest --disable-xvfb --disable-dmx \
    --disable-xwin --disable-xephyr --disable-kdrive \
    --disable-xinerama \
    --enable-composite \
    --enable-install-libxf86config \
    --enable-xcsecurity \
    --enable-glx-tls --enable-dri2 \
    --with-pic \
    --with-int10=x86emu \
    --with-default-font-path="${DEF_FONTPATH}" \
    --with-module-dir=/usr/lib${LIBDIRSUFFIX}/xorg/modules \
    --with-dri-driver-path=/usr/lib${LIBDIRSUFFIX}/xorg/modules/dri \
    --with-xkb-path=/etc/X11/xkb \
    --with-xkb-output=/var/lib/xkb \
    --disable-config-dbus \
    --disable-config-hal \
    --disable-config-udev \
    --disable-devel-docs \
    --disable-unit-tests \
    --without-dtrace \
    --with-os-name="$OSNAME" \
    --with-os-vendor="$OSVENDOR" \
    --with-builderstring="$BUILDER" \
    --build=$TARGET

  make $NUMJOBS || make || exit 1
  make -C hw/vnc DESTDIR=$PKG install
cd -

if [ "$DO_APPLET" = "YES" ]; then
  # Compile the java applet (needs the JDK... JRE is not enough):
  cd java/src/com/tigervnc/vncviewer
    make || exit 1
  cd -
fi

# Create .png icons from the .svg file:
make -C media

if [ "$DO_APPLET" = "YES" ]; then
  # Install the java applet:
  cd java/src/com/tigervnc/vncviewer
    mkdir -p $PKG/usr/share/tigervnc/classes
    install -m0755 VncViewer.jar $PKG/usr/share/tigervnc/classes/
    install -m0644 index.vnc $PKG/usr/share/tigervnc/classes/
    install -m0644 *.class $PKG/usr/share/tigervnc/classes/
  cd -
fi

# Install menu entry:
mkdir -p $PKG/usr/share/{applications,icons/hicolor/{16x16,24x24,32x32,48x48}/apps}
for PSIZE in 16 24 32 48; do
  install -m644 media/icons/tigervnc_${PSIZE}.png \
    $PKG/usr/share/icons/hicolor/${PSIZE}x${PSIZE}/apps/tigervnc.png 
done
cat <<EOT > $PKG/usr/share/applications/tigervnc.desktop
[Desktop Entry]
Encoding=UTF-8
Name=TigerVNC
GenericName=VNCViewer (RFB Client)
Comment=Connect to remote desktop
SwallowExec=
Exec=vncviewer
MimeType=
Icon=tigervnc
Path=
TerminalOptions=
Terminal=false
Type=Application
Categories=Network;
StartupWMClass=VNC Viewer: Connection Details
EOT

# Add this to the doinst.sh:
! [ -d $PKG/install ] && mkdir -p $PKG/install
cat <<EOT >> $PKG/install/doinst.sh
# Update the desktop database:
if [ -x usr/bin/update-desktop-database ]; then
  chroot . /usr/bin/update-desktop-database usr/share/applications 1>/dev/null 2>&1
fi

# Update the mime database:
if [ -x usr/bin/update-mime-database ]; then
  chroot . /usr/bin/update-mime-database usr/share/mime 1>/dev/null 2>&1
fi

# Update hicolor theme cache:
if [ -d usr/share/icons/hicolor ]; then
  if [ -x usr/bin/gtk-update-icon-cache ]; then
    chroot . /usr/bin/gtk-update-icon-cache -f -t usr/share/icons/hicolor 1> /dev/null 2> /dev/null
  fi
fi

EOT

# Add documentation:
mkdir -p $PKG/usr/doc/$PKGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PKGNAM-$VERSION || true
for FIL in $(echo $DOCS_XORG); do cp -a unix/xserver/$FIL $PKG/usr/doc/$PKGNAM-$VERSION/${FIL}.xorg ; done
chown -R root:root $PKG/usr/doc/$PKGNAM-$VERSION
find $PKG/usr/doc -type f -exec chmod 644 {} \;

# Compress the man page(s):
if [ -d $PKG/usr/man ]; then
  find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;
  for i in $(find $PKG/usr/man -type l -name "*.?") ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
fi

# Strip binaries (if any):
find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

# Add a package description:
mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
if [ -f $CWD/doinst.sh.gz ]; then
  zcat $CWD/doinst.sh.gz >> $PKG/install/doinst.sh
fi

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