#!/bin/bash
# Slackware build script for spawm
# Copyright 2012-2024 Zhu Qun-Ying
# 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)
PRGNAM=spawn
VERSION=${VERSION:-25.0.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=${TMP}/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
mkdir $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz -C  $PRGNAM-$VERSION --strip-components=1

cd $PRGNAM-$VERSION
chown -R root:root .

sed -i -e 's/\[/(/g' \
      -e 's/\]/)/g' source/spawn/spawn-channels__glib_posix.adb
GPRBUILD_FLAGS="-p -j0 -R -cargs $SLKCFLAGS -largs -s -gargs"
export GPR_PROJECT_PATH=/usr/share/gpr:./gnat
GPRINSTALL_FLAGS="-p -f --prefix=$PKG/usr"

lib_types=(static-pic relocatable)
for lib in ${lib_types[@]}; do
	echo "Building $lib library"
	gprbuild -j0 $GPRBUILD_FLAGS -XLIBRARY_TYPE=$lib -P gnat/spawn.gpr
	gprinstall $GPRINSTALL_FLAGS -XLIBRARY_TYPE=$lib \
		--sources-subdir=include/spawn \
		--lib-subdir=lib$LIBDIRSUFFIX/spawn/$lib \
		--build-name=$lib --build-var=SPAWN_LIBRARY_TYPE \
		-P gnat/spawn.gpr
	gprbuild -j0 $GPRBUILD_FLAGS -XLIBRARY_TYPE=$lib -P gnat/spawn_glib.gpr
	gprinstall $GPRINSTALL_FLAGS -XLIBRARY_TYPE=$lib \
		--sources-subdir=include/spawn_glib \
		--lib-subdir=lib$LIBDIRSUFFIX/spawn_glib/$lib \
		--build-name=$lib --build-var=SPAWN_LIBRARY_TYPE \
		-P gnat/spawn_glib.gpr
done

# static-pic and relocatable ali files are the same
installed_lib=(spawn spawn_glib)
for lib in $installed_lib; do
  (cd $PKG/usr/lib$LIBDIRSUFFIX/$lib/static-pic
   rm *.ali
   for file in ../relocatable/*.ali; do
    ln -s $file
   done
  )
done
mkdir -p $PKG/install
cp $CWD/slack-desc $PKG/install

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp README.md LICENSE.txt $CWD/$PRGNAM.SlackBuild $PKG/usr/doc/$PRGNAM-$VERSION


cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE