#!/bin/sh
# $Id$
# 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:         sonic-pi
# Descr:       live coding music performance tool
# URL:         https://sonic-pi.net/
# Build needs: erlang-otp
# Needs:       aubio sc3-plugins supercollider
# Changelog:   
# 3.2.2-1:     21/Jul/2020 by Eric Hameleers <alien@slackware.com>
#              * Initial build.
# 
# Run 'sh sonic-pi.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=sonic-pi
VERSION=${VERSION:-3.2.2}
BUILD=${BUILD:-1}
NUMJOBS=${NUMJOBS:-" -j$(nproc) "}
TAG=${TAG:-alien}

DOCS="CONTRIBUTORS.md FAQ.md HOW-TO-CONTRIBUTE.md INSTALL-LINUX.md INSTALL.md \
  LICENSE.md README.md SYNTH_DESIGN.md TESTING.md"

# 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="$SRCDIR/${PRGNAM}-${VERSION}.tar.gz"
SRCURL="https://github.com/samaaron/${PRGNAM}/archive/v${VERSION}.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:
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 $SOURCE)"
    wget --no-check-certificate -nv -T 20 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Downloading '$(basename ${SOURCE})' failed... aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    echo "File '$(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}
APPROOT=$(pwd)

# Use the system version of QScintilla (qt5 libraries):
cat $SRCDIR/patches/sonic-pi_system_qscintilla.patch | patch -p1 --verbose \
  2>&1 | tee $OUTPUT/patch-$PRGNAM.log

chown -R root:root .
chmod -R u+w,go+r-w,a+rX-st .

echo Building ...
export LDFLAGS="$SLKLDFLAGS"
export CXXFLAGS="$SLKCFLAGS"
export CFLAGS="$SLKCFLAGS"

# Mostly do what these embedded scripts do (not part of Sonic Pi 3.2.2):
# app/gui/qt/linux-prebuild.sh
# app/gui/qt/external/linux_build_externals.sh
# app/gui/qt/linux-config.sh

# Build external dependencies:
cd $APPROOT/app/gui/qt/external/
mkdir build
cd build
  cmake -G "Unix Makefiles" ..
  # Build sp_midi:
  # Next release instead of osmid:
  #cmake --build . --target sp_midi
  cmake --build . --target osmid
cd - 1>/dev/null

# Install dependencies to server:
# sp_midi replaces osmid in releases after 3.2.2:
#mkdir -p ${APPROOT}/app/server/erlang/sonic_pi_server/priv/
#cp ${APPROOT}/app/gui/qt/external/build/sp_midi-prefix/src/sp_midi-build/*.so ${APPROOT}/app/server/erlang/sonic_pi_server/priv/
mkdir -p ${APPROOT}/app/server/native/osmid
cp ${APPROOT}/app/gui/qt/external/build/osmid-prefix/src/osmid-build/o2m ${APPROOT}/app/server/native/osmid/
cp ${APPROOT}/app/gui/qt/external/build/osmid-prefix/src/osmid-build/m2o ${APPROOT}/app/server/native/osmid/

# Compile native ruby extensions:
ruby ${APPROOT}/app/server/ruby/bin/compile-extensions.rb

# Compile erlang files (no longer needed after 3.2.2):
cd ${APPROOT}/app/server/erlang
  erlc osc.erl pi_server.erl
cd - 1>/dev/null

# Translate tutorial:
ruby ${APPROOT}/app/server/ruby/bin/i18n-tool.rb -t

# Generate docs for the Qt GUI:
cp ${APPROOT}/app/gui/qt/utils/ruby_help.tmpl ${APPROOT}/app/gui/qt/utils/ruby_help.h
ruby ${APPROOT}/app/server/ruby/bin/qt-doc.rb -o ${APPROOT}/app/gui/qt/utils/ruby_help.h

# Update GUI translation files:
lrelease ${APPROOT}/app/gui/qt/lang/*.ts

## Compile erlang files (versions after 3.2.2:
#cd ${APPROOT}/app/server/erlang/sonic_pi_server
#  erl -make
#  cp src/sonic_pi_server.app.src ebin/sonic_pi_server.app
#cd - 1>/dev/null

# Compile the Qt5 GUI:
cd ${APPROOT}/app/gui/qt/
mkdir build
cd build
  cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release ..
  cmake --build .
cd - 1>/dev/null

# Install the lot into the package dir.
# Use standard locations rather than those that the program expects,
# and apply symlinks librally to tie it all together.
cd ${APPROOT}
##########cp -a ${APPROOT}/{app,etc} $PKG/usr/libexec/sonic-pi/
# Create directories:
mkdir -p $PKG/usr/libexec/sonic-pi/app/gui/qt/{build,images,lang}
mkdir -p $PKG/usr/libexec/sonic-pi/app/server/{erlang,native}
mkdir -p $PKG/usr/libexec/sonic-pi/etc/synthdefs/graphviz

# Copy the GUI programs:
cp -a ${APPROOT}/bin $PKG/usr/libexec/sonic-pi/
cp -a ${APPROOT}/app/gui/qt/build/sonic-pi $PKG/usr/libexec/sonic-pi/app/gui/qt/build/

# All the other stuff needed by the GUI:
cp -a ${APPROOT}/app/gui/qt/fonts $PKG/usr/libexec/sonic-pi/app/gui/qt/
cd ${APPROOT}/app/gui/qt/images
  find . -name "*.png" | xargs -I '{}' cp -a --parents '{}' $PKG/usr/libexec/sonic-pi/app/gui/qt/images/
cd - 1>/dev/null
cp -a ${APPROOT}/app/gui/qt/lang/*.qm $PKG/usr/libexec/sonic-pi/app/gui/qt/lang/
cp -a ${APPROOT}/app/gui/qt/theme $PKG/usr/libexec/sonic-pi/app/gui/qt/

# Audio data:
cp -a ${APPROOT}/etc/buffers $PKG/usr/libexec/sonic-pi/etc/
cp -a ${APPROOT}/etc/samples $PKG/usr/libexec/sonic-pi/etc/
cp -a ${APPROOT}/etc/snippets $PKG/usr/libexec/sonic-pi/etc/
cd ${APPROOT}/etc/synthdefs
  find . -name "*.scsyndef" -o -name "*.clj" -o -name "*.md" \
   | xargs -I '{}' cp -a --parents '{}' $PKG/usr/libexec/sonic-pi/etc/synthdefs/
cd - 1>/dev/null

# The erlang files:
cp -a ${APPROOT}/app/server/erlang/*.beam ${APPROOT}/app/server/erlang/*.md $PKG/usr/libexec/sonic-pi/app/server/erlang/

# osmid:
cp -a ${APPROOT}/app/server/native/osmid $PKG/usr/libexec/sonic-pi/app/server/native/

# Ruby files - there's a lot of crap in there that I can not really assess:
cp -a ${APPROOT}/app/server/ruby $PKG/usr/libexec/sonic-pi/app/server/
# Remove unused bloat that I recognize:
find $PKG/usr/libexec/sonic-pi/app/server/ruby -name libgit2 -type d | xargs rm -rf
# We do not want these either:
find $PKG/usr/libexec/sonic-pi/app/server/ruby -name Rakefile | xargs rm -f
find $PKG/usr/libexec/sonic-pi/app/server/ruby -name "*.c" | xargs rm -rf
find $PKG/usr/libexec/sonic-pi/app/server/ruby -name "*.o" | xargs rm -rf
find $PKG/usr/libexec/sonic-pi/app/server/ruby -name ".git*" | xargs rm -rf

# The documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a ${APPROOT}/app/gui/qt/book $PKG/usr/doc/$PRGNAM-$VERSION/
ln -s /usr/doc/$PRGNAM-$VERSION/book  $PKG/usr/libexec/sonic-pi/app/gui/qt/
cp -a ${APPROOT}/app/gui/qt/help $PKG/usr/doc/$PRGNAM-$VERSION/
ln -s /usr/doc/$PRGNAM-$VERSION/help  $PKG/usr/libexec/sonic-pi/app/gui/qt/
cp -a ${APPROOT}/app/gui/qt/html $PKG/usr/doc/$PRGNAM-$VERSION/
ln -s /usr/doc/$PRGNAM-$VERSION/html  $PKG/usr/libexec/sonic-pi/app/gui/qt/
cp -a ${APPROOT}/etc/doc/{cheatsheets,images,lang,tutorial} $PKG/usr/doc/$PRGNAM-$VERSION/
ln -s /usr/doc/$PRGNAM-$VERSION  $PKG/usr/libexec/sonic-pi/etc/doc
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/synthdefs
cp -a ${APPROOT}/etc/synthdefs/graphviz/pdf  $PKG/usr/doc/$PRGNAM-$VERSION/synthdefs/
ln -s /usr/doc/$PRGNAM-$VERSION/synthdefs/pdf $PKG/usr/libexec/sonic-pi/etc/synthdefs/graphviz/
cp -a ${APPROOT}/etc/examples $PKG/usr/doc/$PRGNAM-$VERSION/
ln -s /usr/doc/$PRGNAM-$VERSION/examples $PKG/usr/libexec/sonic-pi/etc/

# Create a program wrapper:
mkdir -p $PKG/usr/bin
cat <<EOT > $PKG/usr/bin/sonic-pi
#!/bin/sh
cd /usr/libexec/sonic-pi
./bin/sonic-pi
EOT
chmod 755 $PKG/usr/bin/sonic-pi

# Install a desktop file:
mkdir -p $PKG/usr/share/pixmaps
cp -a ${APPROOT}/app/gui/qt/images/icon-smaller.png \
  $PKG/usr/share/pixmaps/sonic-pi.png
mkdir -p $PKG/usr/share/applications
cat <<EOT > $PKG/usr/share/applications/$PRGNAM.desktop
[Desktop Entry]
Name=Sonic Pi
Comment=Live Coding Music Synth
Exec=sonic-pi
Terminal=false
Type=Application
Categories=Application;AudioVideo;Audio;X-DAW;
Icon=sonic-pi
EOT

# Add this to the doinst.sh:
mkdir -p $PKG/install
cat <<EOINS >> $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 > /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

# 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

# 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_}