#!/bin/sh
# Heavily based on the Slackware 13.0 SlackBuild
# http://www.lua.org
# Packagers Andrea Sciucca ( gohanz at infinito.it)
# Thanks SBO script
# http://www.slacky.it
#
# Exit on most errors
set -e 

CWD=`pwd`
TMP=${TMP:-/tmp/txz}
NAME=lua
PKG=$TMP/package/$NAME
VERSION=5.1.4
ARCH=${ARCH:-i486}
BUILD=5as
SOURCE=http://www.lua.org/ftp/$NAME-$VERSION.tar.gz

if [ ! -e $NAME-$VERSION.tar.gz ]; then
wget -c $SOURCE
fi

if [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"; SLKLDFLAGS=""; LIBDIRSUFFIX=""; CHOST=i486
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"; SLKLDFLAGS=""; LIBDIRSUFFIX=""; CHOST=i486
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"; SLKLDFLAGS="-L/usr/lib64"; LIBDIRSUFFIX="64"
fi

if [ ! -d $TMP ]; then
 mkdir -p $TMP
fi
if [ ! -d $PKG ]; then
 mkdir -p $PKG
fi

cd $TMP
tar xvzf $CWD/$NAME-$VERSION.tar.gz

echo -e "\E[0;32m+----------------------+\E[0;0m"
echo -e "\E[0;32m| Start SlackBuild LUA |\E[0;0m"
echo -e "\E[0;32m+----------------------+\E[0;0m"

cd $NAME-$VERSION
# Apply a patch to enable shared library
patch -p1 < $CWD/lua_enable_shared_libs.patch

find . -perm 666 -exec chmod 644 {} \;
find . -perm 664 -exec chmod 644 {} \;
find . -perm 600 -exec chmod 644 {} \;
find . -perm 444 -exec chmod 644 {} \;
find . -perm 400 -exec chmod 644 {} \;
find . -perm 440 -exec chmod 644 {} \;
find . -perm 777 -exec chmod 755 {} \;
find . -perm 775 -exec chmod 755 {} \;
find . -perm 511 -exec chmod 755 {} \;
find . -perm 711 -exec chmod 755 {} \;
find . -perm 555 -exec chmod 755 {} \;

chown -R root:root .

sed -i "s|-O2|$SLKCFLAGS|g" src/Makefile
sed -i "s|/usr/local|/usr|g" Makefile
make linux
make install INSTALL_TOP=$PKG/usr

# Install the pkg-config file so other apps can find LUA
# Also, fix the prefix path in lua.pc
mkdir -p $PKG/usr/lib/pkgconfig
sed 's|prefix= /usr/local|prefix= /usr|' etc/lua.pc > \
  $PKG/usr/lib/pkgconfig/lua.pc

# Let's make sure all of the library symlinks correctly exist
( cd $PKG/usr/lib
  ln -sf liblua.so.${VERSION} liblua.so.5
  ln -sf liblua.so.${VERSION} liblua.so
  chmod 0755 liblua.so.${VERSION}
)



mkdir -p $PKG/usr/doc/$NAME-$VERSION
cp -a COPYRIGHT HISTORY INSTALL README $PKG/usr/doc/$NAME-$VERSION


( cd $PKG
  find . | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null
  find . | xargs file | grep "current ar archive" | cut -f 1 -d : | xargs strip -g 2> /dev/null
)

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/slack-desc > $PKG/usr/doc/$NAME-$VERSION/slack-desc
cat $CWD/$NAME.SlackBuild > $PKG/usr/doc/$NAME-$VERSION/$NAME.SlackBuild

mkdir -p $PKG/usr/share/{applications,pixmaps}
cp etc/lua.ico $PKG/usr/share/pixmaps

cat << EOF > $PKG/usr/share/applications/$NAME.desktop
[Desktop Entry]
Encoding=UTF-8
Type=Application
Name=LUA
Name[it]=LUA
GenericName=Programming language
GenericName[it]=Linguaggio di programmazione
Comment=Powerful light programming language
Comment[it]=Potente ma leggero linguaggio di programmazione 
Exec=lua
Terminal=true
Icon=/usr/share/pixmaps/lua.ico
Categories=Development;
EOF

	echo "if [ -x /usr/bin/update-mime-database ]; then
  /usr/bin/update-mime-database /usr/share/mime &> /dev/null
fi" >> $PKG/install/doinst.sh
	echo "" >> $PKG/install/doinst.sh
	echo "if [ -x /usr/bin/update-desktop-database ]; then
  /usr/bin/update-desktop-database &> /dev/null
fi" >> $PKG/install/doinst.sh


gzip -9 $PKG/usr/man/*/*

cd $PKG
requiredbuilder -y -v -s $CWD $PKG
makepkg -l y -c n $CWD/$NAME-$VERSION-$ARCH-$BUILD.txz

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