#!/bin/bash
# Slackware build script for gprbuild
# 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=gprbuild
VERSION=${VERSION:-25.0.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

KB_VERSION=${KB_VERSION:-25.0.0}
GPRCONFIG_KB=gprconfig_kb-$KB_VERSION
GPRCONFIG_KB_SRC_DIR=$GPRCONFIG_KB

if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
    *) ARCH=$(uname -m) ;;
  esac
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}
BOOTSTRAP_DSTDIR=${BOOTSTRAP_DSTDIR:-$TMP/$PRGNAM-$VERSION/bootstrap}
BOOTSTRAP=$BOOTSTRAP_DSTDIR/bin

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

mkdir $GPRCONFIG_KB_SRC_DIR
tar xf $CWD/$GPRCONFIG_KB.tar.gz -C $GPRCONFIG_KB_SRC_DIR --strip-components=1

sed -i -e 's/share\/doc/doc/g' \
    -e 's/doc\/gprbuild\/info/info/g' gprbuild.gpr

if [ "$ARCH" = "x86_64" ]; then
    sed -i 's/\/lib\//\/lib64\//g' $GPRCONFIG_KB_SRC_DIR/db/compilers.xml
    sed -i 's/\/lib\//\/lib64\//g' ./gpr/src/gpr-util.adb
    sed -i 's/"lib"/"lib64"/g' ./gpr/src/gpr-util.adb
    sed -i 's/lib\//lib64\//g' Makefile
    # set the default lib directory to lib64
    sed -i 's/\"lib\"/\"lib64\"/g' src/gprinstall.ads
fi

sed -i -e 's/"19940713"/"20241007"/' \
       -e 's/"2016"/"2024"/' \
       -e 's/"18.0w"/"25.0.0"/' \
       -e 's/:= Gnatpro/:= FSF/' gpr/src/gpr-version.ads

(cd share; ln -sfT ../$GPRCONFIG_KB_SRC_DIR/db gprconfig)
export OS=UNIX

XMLADA_VERSION=${XML_VERSION:-$VERSION}
XMLADA_SRC_NAME=xmlada-$XMLADA_VERSION
XMLADA=xmlada-$XMLADA_VERSION

mkdir $XMLADA
tar xf $CWD/$XMLADA_SRC_NAME.tar.gz -C $XMLADA --strip-components=1

export CC=gcc
export CFLAGS=$SLKCFLAGS
mkdir -p $BOOTSTRAP_DSTDIR
./bootstrap.sh --with-xmlada=./$XMLADA \
	       --with-kb=./$GPRCONFIG_KB_SRC_DIR \
	       --prefix=$BOOTSTRAP_DSTDIR

find -name "*.o" | xargs rm
find -name "*.ali" | xargs rm
rm gprbuild gprclean gprconfig gprinstall gprls gprname
# now we have the bootstrap gprbuild, using it to build a static xmlada
# lib for BOOTSTAR_DSTDIR
(export PATH=$BOOTSTRAP_DSTDIR/bin:$PATH
 cd $XMLADA
 sed -i 's/18.0w/25.0.0/g' configure configure.in
 ./configure --prefix=$BOOTSTRAP_DSTDIR --disable-shared
 make prefix=$BOOTSTRAP_DSTDIR static
 make prefix=$BOOTSTRAP_DSTDIR install-static
)

# now build full gprbuild
find -name "*.a" -name "*.ali"
(export PATH=$BOOTSTRAP_DSTDIR/bin:$PATH
export GPR_PROJECT_PATH=$BOOTSTRAP_DSTDIR/share/gpr
make BUILD=production GPRBUILD_OPTIONS="-R"  prefix=/usr setup
make BUILD=production GPRBUILD_OPTIONS="-R"  LIBRARY_TYPE=static all
make BUILD=production GPRBUILD_OPTIONS="-R"  build
make prefix=$PKG/usr install
) 

rm $PKG/usr/doinstall
make -C doc html info

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKG/usr/info
cp -a doc/html $PKG/usr/doc/$PRGNAM-$VERSION/
rm -rf $PKG/usr/doc/$PRGNAM-$VERSION/html/_sources
cp doc/info/*.info $PKG/usr/info
gzip $PKG/usr/info/*

cp README.md COPYING* $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
strip $PKG/usr/bin/*
strip $PKG/usr/libexec/gprbuild/*

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

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