#!/bin/sh
# $Id: zyn-fusion.SlackBuild,v 1.3 2020/10/10 19:01:06 root Exp root $
# Copyright 2020  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:         zyn-fusion
# Descr:       real-time software synthesizer
# URL:         https://zynaddsubfx.sourceforge.io/
# Build needs: 
# Needs:       dssi, jack2, liblo, mxml, portaudio
# Changelog:   
# 3.0.5-1:     21/Jan/2020 by Eric Hameleers <alien@slackware.com>
#              * Initial build.
# 3.0.5-2:     01/jun/2020 by Eric Hameleers <alien@slackware.com>
#              * Fix hard-coded paths preventing zyn-fusion from being useful,
#                thanks to Bob Funk.
# 3.0.5-3:     10/oct/2020 by Eric Hameleers <alien@slackware.com>
#              * Add 'X-DAW' category to the desktop file (for liveslak).
# 
# Run 'sh zyn-fusion.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=zyn-fusion
PRGZYN=zynaddsubfx
PRGFUSION=zyn-fusion-ui-src
VERSION=${VERSION:-3.0.5}
BUILD=${BUILD:-3}
NUMJOBS=${NUMJOBS:-" -j$(nproc) "}
TAG=${TAG:-alien}

DOCS="AUTHORS* ChangeLog COPYING HISTORY README*"

LIBUV=1.9.1

# 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}

SOURCE[0]="$SRCDIR/${PRGZYN}-${VERSION}.tar.bz2"
SRCURL[0]="https://downloads.sourceforge.net/${PRGZYN}/${PRGZYN}-${VERSION}.tar.bz2"

SOURCE[1]="$SRCDIR/${PRGFUSION}-${VERSION}.tar.bz2"
SRCURL[1]="https://downloads.sourceforge.net/zynaddsubfx/${PRGFUSION}-${VERSION}.tar.bz2"

SOURCE[2]="$SRCDIR/libuv-v${LIBUV}.tar.gz"
SRCURL[2]="http://dist.libuv.org/dist/v${LIBUV}/libuv-v${LIBUV}.tar.gz"

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

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi
# Set CFLAGS/CXXFLAGS and LIBDIRSUFFIX:
case "$ARCH" in
  i?86)      SLKCFLAGS="-O2 -march=${ARCH} -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

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:
for (( i = 0; i < ${#SOURCE[*]}; i++ )) ; do
  if ! [ -f ${SOURCE[$i]} ]; then
    echo "Source '$(basename ${SOURCE[$i]})' not available yet..."
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE[$i]="$OUTPUT/$(basename ${SOURCE[$i]})"
    if [ -f ${SOURCE[$i]} ]; then echo "Ah, found it!"; continue; fi
    if ! [ "x${SRCURL[$i]}" == "x" ]; then
      echo "Will download file to $(dirname $SOURCE[$i])"
      wget --no-check-certificate -nv -T 20 -O "${SOURCE[$i]}" "${SRCURL[$i]}" || true
      if [ $? -ne 0 -o ! -s "${SOURCE[$i]}" ]; then
        echo "Fail to download '$(basename ${SOURCE[$i]})'. Aborting the build."
        mv -f "${SOURCE[$i]}" "${SOURCE[$i]}".FAIL
        exit 1
      fi
    else
      echo "File '$(basename ${SOURCE[$i]})' not available. Aborting the build."
      exit 1
    fi
  fi
done

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..."
for (( i = 0; i < ${#SOURCE[*]}; i++ )) ; do
  tar -xvf ${SOURCE[$i]}
done
chown -R root:root *
chmod -R u+w,go+r-w,a+rX-st *

# libuv is a depdendency for building the zyn-fusion UI:
mv -i libuv-v${LIBUV} ${PRGFUSION}-${VERSION}/deps/

# The original bash-completion cmake script does not honor DESTDIR.
# Replace it with a much more straightforward implementation.
cp $SRCDIR/BashCompletion.cmake ${PRGZYN}-${VERSION}/cmake/BashCompletion.cmake

# Replace hard-coded '/opt/zyn-fusion' with '/usr/libexec/zyn-fusion':
sed -e "s,/opt/zyn-fusion,/usr/libexec/zyn-fusion," \
    -i $(grep -rl '/opt/zyn-fusion' zyn*)

echo Building ...

# Prepare the ruby-zest UI component so the synth build can pick it up:
cd ${PRGFUSION}-${VERSION}/
  # Fix version number in Makefile
  sed -i Makefile -e"s|3.0.0-pre|${VERSION}|"
  # Fix font permissions:
  chmod 0644 deps/mruby-nanovg/examples/*.ttf
  chmod 0644 deps/nanovg/example/*.ttf
  # Build:
  touch $OUTPUT/configure-${PRGNAM}_fusion.log
  ruby rebuild-fcache.rb \
  2>&1 | tee $OUTPUT/configure-${PRGNAM}_fusion.log
  make setup \
  2>&1 | tee $OUTPUT/configure-${PRGNAM}_fusion.log
  make builddep \
  2>&1 | tee $OUTPUT/configure-${PRGNAM}_fusion.log
cd - 1>/dev/null

# Compile the synth:
cd ${PRGZYN}-${VERSION}
  mkdir -p build-${PRGZYN}
  cd build-${PRGZYN}
  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=${LIBDIRSUFFIX} \
    -DDefaultOutput=jack \
    -DDefaultInput=jack \
    -DGuiModule=zest \
    -DJackEnable=ON \
    -DPluginLibDir=lib${LIBDIRSUFFIX} \
    ..
  make $NUMJOBS 2>&1 | tee $OUTPUT/make-${PRGNAM}.log
  make DESTDIR=$PKG install 2>&1 | tee $OUTPUT/install-${PRGNAM}.log
  cd - 1>/dev/null

  ## Build the external programs we need:
  #make $NUMJOBS -C ExternalPrograms/Controller \
  #   2>&1 | tee $OUTPUT/make-${PRGNAM}_external.log
  #make $NUMJOBS -C ExternalPrograms/Spliter \
  #   2>&1 | tee -a $OUTPUT/make-${PRGNAM}_external.log

  ## And install those too:
  #install -m 0755 ExternalPrograms/Controller/controller \
  #  ${PKG}/usr/bin/${PRGZYN}-controller
  #install -m 0755 ExternalPrograms/Spliter/spliter \
  #  ${PKG}/usr/bin/${PRGZYN}-spliter 

  # Install banks and examples:
  mkdir -p ${PKG}/usr/share/${PRGNAM}
  cp -a instruments/banks ${PKG}/usr/share/${PRGNAM}
  cp -a instruments/examples ${PKG}/usr/share/${PRGNAM}

  # Install application icons:
  install -Dm 0644 ${PRGZYN}.ico ${PKG}/usr/share/pixmaps/${PRGZYN}.ico
  convert ${PRGZYN}.ico ${PKG}/usr/share/pixmaps/${PRGZYN}.png
  install -Dm 0644 ${PRGZYN}.svg \
    ${PKG}/usr/share/icons/hicolor/scalable/apps/${PRGZYN}.svg

  # 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 {} \;
  # Remove the unwanted bits;
  rm -rf $PKG/usr/share/doc

cd $TMP/tmp-$PRGNAM

# Build and install the UI component:
cd ${PRGFUSION}-${VERSION}/
  touch $OUTPUT/make-${PRGNAM}_fusion.log
  make clean \
    2>&1 | tee -a $OUTPUT/make-${PRGNAM}_fusion.log
  rm -f package/qml/*.qml
  ruby rebuild-fcache.rb \
    2>&1 | tee -a $OUTPUT/make-${PRGNAM}_fusion.log
  VERSION=${VERSION} BUILD_MODE=release make \
    2>&1 | tee -a $OUTPUT/make-${PRGNAM}_fusion.log
  VERSION=${VERSION} BUILD_MODE=release make pack \
    2>&1 | tee -a $OUTPUT/make-${PRGNAM}_fusion.log
  rm package/qml/*.qml

  # And install zyn-fusion:
  mkdir -p ${PKG}/usr/bin
  mkdir -p ${PKG}/usr/libexec/${PRGNAM}/qml
  install -m 0755 package/zest ${PKG}/usr/libexec/${PRGNAM}/${PRGNAM}
  install -m 0644 package/VERSION -t ${PKG}/usr/libexec/${PRGNAM}/
  install -m 0755 package/libzest.so -t ${PKG}/usr/libexec/${PRGNAM}/
  cp -av package/font ${PKG}/usr/libexec/${PRGNAM}/
  cp -av package/schema ${PKG}/usr/libexec/${PRGNAM}/
  #cp -av package/qml ${PKG}/usr/libexec/${PRGNAM}/
  touch ${PKG}/usr/libexec/${PRGNAM}/qml/MainWindow.qml
  # Install a wrapper script to invoke zyn-fusion:
  cat <<EOT > ${PKG}/usr/bin/${PRGNAM}
#!/bin/sh
cd /usr/libexec/${PRGNAM}/
./${PRGNAM}
EOT
chmod 755 ${PKG}/usr/bin/${PRGNAM}

cd - 1>/dev/null

# Add 'X-DAW' category to the desktop file (for liveslak):
for DESKTOPF in $PKG/usr/share/applications/*.desktop ; do
  if ! grep -q X-DAW $DESKTOPF ; then
    sed -i $DESKTOPF \
      -e "s/^Categories=\(.*\)/Categories=X-DAW;\1/"
  fi
done

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

EOINS

# 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:-txz} 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-txz} > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}${TAG}.${PKGTYPE:-txz}.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_}