#!/bin/sh

# Heavily based on the Slackware 14.1 SlackBuild

# Written by Loris Vincenzi (slacky@slacky.it)
# Last build from Loris Vincenzi (slacky@slacky.it)

# Slackware build script for lua
# Official Site: http://www.lua.org
# Patches from ...

# 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.
#
# Requirements:

set -e

PKGNAME=lua
VERSION=${VERSION:-5.1.5}
ARCH=${ARCH:-$(uname -m)}
BUILD=${BUILD:-2}
TAG=${TAG:-sl}
SOURCE="http://www.lua.org/ftp/$PKGNAME-$VERSION.tar.gz"
TAR=
DIR=
DOCS="README"
SLKFILES="patch.diff file.desktop rc.application.sh ..."

case "$ARCH" in
	  i?86) export ARCH=i486; SLKCFLAGS="-O2 -march=i486 -mtune=i686"; CHOST="i486-slackware-linux" ;;
	x86_64) SLKCFLAGS="-O2 -fPIC"; LIBDIRSUFFIX="64"; CHOST="x86_64-slackware-linux" ;;
	  arm*) export ARCH=arm; SLKCFLAGS="-O2 -march=armv5te"; CHOST="arm-slackware-linux-gnueabi" ;;
		 *) export ARCH=$( uname -m ) ;;
esac

JOBS=${JOBS:--j2}
CWD=$(pwd)
TMP=${TMP:-/tmp/buildpkgs/$PKGNAME}
PKG=$TMP/package-$PKGNAME
OUTPUT=${OUTPUT:-$CWD}
TAR=${TAR:-$(basename $SOURCE)}
DIR=${DIR:-$(echo "$TAR"|sed -r 's/(\.tar|)(.gz|.bz2|.xz|.tgz|)$//')}

if [ ! -e $CWD/$TAR ];then
	wget $SOURCE -O "$CWD/$TAR"
fi

rm -rf $TMP
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
tar xvf $CWD/$TAR
cd $DIR

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

# Fix up a to-be-installed header and the pkgconfig file
sed -i "s|/usr/local|/usr|" src/luaconf.h
sed -i "s|lib/lua|lib$LIBDIRSUFFIX/lua|" src/luaconf.h
sed -i "s|/usr/local|/usr|" etc/lua.pc
sed -i "s|prefix}/lib|prefix}/lib${LIBDIRSUFFIX}|g" etc/lua.pc

# Building Lua  package
make linux \
  CFLAGS="$SLKCFLAGS \$(MYCFLAGS)" \
  INSTALL_TOP=/usr \
  INSTALL_LIB=/usr/lib${LIBDIRSUFFIX} \
  INSTALL_LMOD=/usr/share/lua/5.1 \
  INSTALL_CMOD=/usr/lib${LIBDIRSUFFIX}/lua/5.1

make linux install \
  CFLAGS="$SLKCFLAGS \$(MYCFLAGS)" \
  INSTALL_TOP=$PKG/usr \
  INSTALL_LIB=$PKG/usr/lib${LIBDIRSUFFIX} \
  INSTALL_LMOD=$PKG/usr/share/lua/5.1 \
  INSTALL_CMOD=$PKG/usr/lib${LIBDIRSUFFIX}/lua/5.1

# Now let's build the shared library
mkdir -p shared
cd shared
  ar -x $PKG/usr/lib${LIBDIRSUFFIX}/liblua.a
  gcc -ldl -lreadline -lhistory -lncurses -lm -shared *.o -o liblua.so.$VERSION
  cp -a liblua.so.$VERSION $PKG/usr/lib${LIBDIRSUFFIX}
  ( cd $PKG/usr/lib${LIBDIRSUFFIX}
    ln -s liblua.so.$VERSION liblua.so.5.1
    ln -s liblua.so.$VERSION liblua.so.5
    ln -s liblua.so.$VERSION liblua.so
  )
cd ..

# and install the pkgconfig file
mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig
cat etc/lua.pc > $PKG/usr/lib${LIBDIRSUFFIX}/pkgconfig/lua.pc

mkdir -p $PKG/usr/doc/$PKGNAME-$VERSION/{SlackBuild,extras,html}
cp -a doc/*.html doc/logo.gif doc/lua.css $PKG/usr/doc/$PKGNAME-$VERSION/html

for DC in $DOCS;do
	[ -e $DC ] && cp -r $DC $PKG/usr/doc/$PKGNAME-$VERSION/ || true
done

cd $CWD
for SB in $PKGNAME.SlackBuild slack-desc doinst.sh doinst.sh.gz EULA.TXT $SLKFILES;do
	[ -e "$SB" ] && cp -r $SB $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/$SB || true
done

for i in man info
do
    if [ -d $PKG/usr/$i ]; then
   		cd $PKG/usr/$i
		find . -type f -exec gzip -9 {} \;
		for file in $( find . -type l ) ; do ln -s $( readlink $file ).gz $file.gz ; rm $file ; done
		[ "$i" == "info" ] && rm -f dir
    fi
done
	
cd $PKG
find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true
find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs -r strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
[ -e $CWD/doinst.sh ] && cat $CWD/doinst.sh > $PKG/install/doinst.sh
[ -e $CWD/doinst.sh.gz ] && zcat $CWD/doinst.sh.gz > $PKG/install/doinst.sh

cd $PKG
chown -R root:root $PKG

if [ -x "$(which requiredbuilder 2>/dev/null)" ];then
	requiredbuilder -y -v -s $CWD $PKG # add "-c -b" if you have binary files in /usr/share
	[ -e install/slack-required ] && cat install/slack-required > $PKG/usr/doc/$PKGNAME-$VERSION/SlackBuild/slack-required
fi

/sbin/makepkg -l y -c n $OUTPUT/$PKGNAME-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-txz}

if [ "$1" = "--cleanup" ]; then
	rm -rf $TMP
fi