#!/bin/bash

# Copyright 2008, 2009, 2010, 2011, 2013, 2018, 2020, 2021, 2022, 2023  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.

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

PKGNAM=gtk4
VERSION=${VERSION:-$(echo gtk-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}

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

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

TMP=${TMP:-/tmp}
PKG=$TMP/package-gtk4

if [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=pentium4 -mtune=generic -Wno-error=int-conversion"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686 -Wno-error=int-conversion"
  LIBDIRSUFFIX=""
else
  SLKCFLAGS=${SLKCFLAGS:-"-O2"}
  LIBDIRSUFFIX=${LIBDIRSUFFIX:-""}
fi

rm -rf $PKG
mkdir -p $TMP $PKG/usr
cd $TMP
rm -rf gtk-$VERSION
echo "Extracting $CWD/gtk-$VERSION.tar.?z..."
tar xf $CWD/gtk-$VERSION.tar.?z || exit 1
cd gtk-$VERSION || exit 1

# Fix missing FE_UPWARD (or1k-soft, sh4), FE_DOWNWARD (or1k-soft, sh4)
# and FE_TOWARDZERO (or1k-soft):
zcat $CWD/fe_rounding.diff.gz | patch -p1 --verbose || 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 {} \+

# Configure, build, and install:
export CFLAGS="$SLKCFLAGS -DG_ENABLE_DEBUG"
export CXXFLAGS="$SLKCFLAGS -DG_ENABLE_DEBUG"
mkdir meson-build
cd meson-build
unshare -n meson setup \
  --prefix=/usr \
  --libdir=lib${LIBDIRSUFFIX} \
  --libexecdir=/usr/libexec \
  --bindir=/usr/bin \
  --sbindir=/usr/sbin \
  --includedir=/usr/include \
  --datadir=/usr/share \
  --mandir=/usr/man \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --buildtype=release \
  -Dman-pages=true \
  -Dbuild-demos=true \
  -Ddocumentation=false \
  -Dbroadway-backend=true \
  -Dbuild-examples=false \
  -Dbuild-tests=false \
  -Dwayland-backend=true \
  -Dintrospection=enabled \
  .. || exit 1
  "${NINJA:=ninja}" $NUMJOBS || exit 1
  DESTDIR=$PKG $NINJA install || exit 1
cd ..

# The following four things don't seem to be used by gtk4. But if something
# similar ends up being required, let me know.

# Don't clobber im-multipress.conf
#mv $PKG/etc/gtk-4.0/im-multipress.conf $PKG/etc/gtk-4.0/im-multipress.conf.new

# Install a "starter" gtkrc
#echo 'gtk-theme-name="Adwaita"' > $PKG/etc/gtk-4.0/gtkrc.new

# We need to have separate 32-bit and 64-bit binaries for places where we have
# two copies of the GTK package installed (we might have x86_64 and i586
# packages on the same system, for example.)
#if [ "$LIBDIRSUFFIX" = "64" ]; then
#  mv $PKG/usr/bin/gtk-query-immodules-4.0{,-64}
#  ( cd $PKG/usr/bin
#    ln -sf gtk-query-immodules-4.0-64 gtk-query-immodules-4.0
#  )
#else
#  mv $PKG/usr/bin/gtk-query-immodules-4.0{,-32}
#  ( cd $PKG/usr/bin
#    ln -sf gtk-query-immodules-4.0-32 gtk-query-immodules-4.0
#  )
#fi

# Install wrappers for the binaries:
#cp $CWD/update-gtk-immodules-4.0 $PKG/usr/bin/update-gtk-immodules-4.0
#chmod 0755 $PKG/usr/bin/update-*

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

# It seems that --mandir is ignored:
rsync -lprvt $PKG/usr/share/man/ $PKG/usr/man/
rm -rf $PKG/usr/share/man/

# Compress manual pages:
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

# Copy extra documentation into package.
mkdir -p $PKG/usr/doc/gtk4-$VERSION
cp -a \
  AUTHORS COPYING NEWS README \
  $PKG/usr/doc/gtk4-$VERSION
find $PKG/usr/doc/gtk4-$VERSION/ -type f -exec chmod 644 {} \+
chown -R root:root $PKG/usr/doc/gtk4-$VERSION

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

cd $PKG
/sbin/makepkg -p -l y -c n $TMP/gtk4-${VERSION}-$ARCH-${BUILD}.txz