#!/bin/sh
# $Id$
# Copyright 2016  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.
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:          Eric Hameleers <alien@slackware.com>
# For:         freerdp
# Descr:       implementation of remote desktop protocol
# URL:         http://www.freerdp.com/
# Build needs: 
# Needs:       ffmpeg
# Changelog:   
# 20160810-1:  10/Aug/2016 by Eric Hameleers <alien@slackware.com>
#              * Initial build.
# 
# Run 'sh freerdp.SlackBuild' to build a Slackware package.
# The package (.t?z) and .txt file as well as build logs are created in /tmp .
# Install the package using 'installpkg' or 'upgradepkg --install-new'.
#
# -----------------------------------------------------------------------------

PRGNAM=freerdp
VERSION=${VERSION:-20160810}
BUILD=${BUILD:-1}
NUMJOBS=${NUMJOBS:-" -j4 "}
TAG=${TAG:-alien}

DOCS="ABOUT* AUTHORS BUGS ChangeLog* COPYING CREDITS FAQ GPL* HACKING \
      LICENSE MAINTAINERS NEWS README* TODO"

# Where do we look for sources?
SRCDIR=$(cd $(dirname $0); pwd)

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# If you want automatic download to work, supply a URL for 'SRCURL' below:
SOURCE="$SRCDIR/${PRGNAM}-${VERSION}.tar.xz"
SRCURL=""

# Use the src_checkout() function if no downloadable tarball exists.
# Check out sources from SVN/GIT and create a tarball of them.
# Examples for GIT and SVN repositories are given below:
src_checkout() {
  # Param #1 : index in the SOURCE[] array.
  # Param #2 : full path to where SOURCE[$1] tarball should be created.
  # Determine the tarball extension:
  PEXT=$(echo "${2}" | sed -r -e 's/.*[^.].(tar.xz|tar.gz|tar.bz2|tgz).*/\1/')
  case "$PEXT" in
    "tar.xz") TARCOMP="J" ;;
    "tar.gz") TARCOMP="z" ;;
    "tgz") TARCOMP="z" ;;
    "tar.bz2") TARCOMP="j" ;;
    *) echo "Archive can only have extension 'tar.xz', '.tar.gz' '.tar.bz2' or '.tgz'" ; exit 1 ;;
  esac
  # Determine the directory name to create for the archive root:
  PBASE=$(basename ${2} .${PEXT})
  # Determine the directory where we create our checkout:
  CODIR=$(dirname ${2})
  case ${1} in
  0) # This example assumes a GIT checkout:
     GITURI="https://github.com/FreeRDP/FreeRDP.git"
     BRANCH="master" # change if needed, the default is usually OK.
     RETDIR=$(pwd)
     mkdir -p $CODIR/${PRGNAM}_temp_checkout_$$ \
       && cd $CODIR/${PRGNAM}_temp_checkout_$$
     mkdir ${PBASE} \
       && cd ${PBASE} \
     && \
     if [ "$VERSION" = "HEAD" -o "$VERSION" = "master" ]; then
       # Checkout without downloading version history (fast!):
       echo "Checking out HEAD from '$GITURI':"
       # If VERSION was "HEAD" we still want a date to appear in the pkgname:
       VERSION=$(date +%Y%m%d)
       git clone --depth=1 ${GITURI} .
     else
       # Checkout code from a certain branch and/or date; this will take a
       # long time because we have to clone the complete git-repository first:
       echo "Checking out $BRANCH at date $VERSION from '$GITURI':"
       git clone ${GITURI} . \
         && git checkout $BRANCH
     fi \
       && chown -R root:root . \
       && cd .. \
       && tar --exclude .git -${TARCOMP}cf ${2} ${PBASE} \
       && echo "Checkout hash for $VERSION: $(git rev-list -n 1  --pretty=format:'%h' --before="`date -d $VERSION`" master)"
     cd $RETDIR
     rm -rf $CODIR/${PRGNAM}_temp_checkout_$$ || true
     ;;
  *) # Do nothing
     ;;
  esac
}

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# You can use your own private machine.conf file to overrule machine defaults:
if [ -e $SRCDIR/machine.conf ]; then
  . $SRCDIR/machine.conf
elif [ -e /etc/slackbuild/machine.conf ]; then
  . /etc/slackbuild/machine.conf
else
  # Automatically determine the architecture we're building on:
  MARCH=$( uname -m )
  if [ -z "$ARCH" ]; then
    case "$MARCH" in
      i?86)    export ARCH=i486 ;;
      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
  # Set CFLAGS/CXXFLAGS and LIBDIRSUFFIX:
  case "$ARCH" in
    i486)      SLKCFLAGS="-O2 -march=i486 -mtune=i686"
               SLKLDFLAGS=""; LIBDIRSUFFIX=""
               ;;
    x86_64)    SLKCFLAGS="-O2 -fPIC"
               SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
               ;;
    armv7hl)   SLKCFLAGS="-O2 -march=armv7-a -mfpu=vfpv3-d16"
               SLKLDFLAGS=""; LIBDIRSUFFIX=""
               ;;
    *)         SLKCFLAGS=${SLKCFLAGS:-"O2"}
               SLKLDFLAGS=${SLKLDFLAGS:-""}; LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
               ;;
  esac
fi

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

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line ${LINENO}" | tee $OUTPUT/error-${PRGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

# Save old umask and set to 0022:
_UMASK_=$(umask)
umask 0022

# Create working directories:
mkdir -p $OUTPUT          # place for the package to be saved
mkdir -p $TMP/tmp-$PRGNAM # location to build the source
mkdir -p $PKG             # place for the package to be built
rm -rf $PKG/*             # always erase old package's contents
rm -rf $TMP/tmp-$PRGNAM/* # remove the remnants of previous build
rm -rf $OUTPUT/{checkout,configure,make,install,error,makepkg,patch}-$PRGNAM.log
                          # remove old log files

# Source file availability:
if ! [ -f ${SOURCE} ]; then
  echo "Source '$(basename ${SOURCE})' not available yet..."
  # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
  [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/$(basename ${SOURCE})"
  if [ -f ${SOURCE} ]; then echo "Ah, found it!"; continue; fi
  if ! [ "x${SRCURL}" == "x" ]; then
    echo "Will download file to $(dirname $SOURCE)"
    wget -nv -T 20 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Fail to download '$(basename ${SOURCE})'. Aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    # Try if we have a SVN/CVS download routine for ${SOURCE}
    echo "Will checkout sources to $(dirname $SOURCE)"
    src_checkout 0 "${SOURCE}" 2>&1 > $OUTPUT/checkout-$(basename ${SOURCE}).log
  fi
  if [ ! -f "${SOURCE}" -o ! -s "${SOURCE}" ]; then
    echo "File '$(basename ${SOURCE})' not available. Aborting the build."
    exit 1
  fi
fi

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

cd $TMP/tmp-$PRGNAM
echo "Extracting the source archive(s) for $PRGNAM..."
tar -xvf ${SOURCE}
cd ${PRGNAM}-${VERSION}
chown -R root:root .
chmod -R u+w,go+r-w,a+rX-st .

echo Building ...
mkdir -p build-${PRGNAM}
cd build-${PRGNAM}
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_C_FLAGS_RELEASE:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS_RELEASE:STRING="$SLKCFLAGS" \
    -DCMAKE_BUILD_TYPE=Release \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DMAN_INSTALL_DIR=/usr/man \
    -DSYSCONF_INSTALL_DIR=/etc \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DWITH_CUPS=ON \
    -DWITH_FFMPEG=ON \
    -DWITH_LIBSYSTEMD=OFF \
    -DWITH_WAYLAND=OFF \
    -DWITH_CHANNELS=ON \
    -DWITH_CLIENT_CHANNELS=ON \
    -DWITH_SERVER_CHANNELS=ON \
    ..
  make $NUMJOBS 2>&1 | tee $OUTPUT/make-${PRGNAM}.log
  make DESTDIR=$PKG install 2>&1 | tee $OUTPUT/install-${PRGNAM}.log
cd -

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
cat $SRCDIR/$(basename $0) > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
chown -R root:root $PKG/usr/doc/$PRGNAM-$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 || true

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc
cat $SRCDIR/slack-required > $PKG/install/slack-required

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-tgz} 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-tgz} > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-tgz}.md5
cd -
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.txt
cat $PKG/install/slack-required > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.dep

# Restore the original umask:
umask ${_UMASK_}

