#!/bin/sh

CWD=$(pwd)

PRGNAM=$(basename $CWD)
VERSION=git$(date +%Y.%m.%d_%H.%M)
BUILD=1
PACKAGER=cyco
ARCH=$(uname -m)

REPOSITORIES=/home/cycojesus/projets/packages/repositories

TMP=/tmp/$PACKAGER
PKG=$TMP/pkg-$PRGNAM
OUTPUT=/tmp

PREFIX=/usr

# cleaning
rm -fr $PKG

# get sources
[ ! -e $REPOSITORIES ] && mkdir -p $REPOSITORIES
( cd $REPOSITORIES
    if [ -e $REPOSITORIES/$PRGNAM ] ; then
        ( cd $REPOSITORIES/$PRGNAM
            git pull
        )
    else
        git clone http://luajit.org/git/luajit-2.0.git $REPOSITORIES/$PRGNAM
    fi
)

( cd $TMP
    rm -fr $PRGNAM-$VERSION && cp -R $REPOSITORIES/$PRGNAM $PRGNAM-$VERSION
    ( cd $PRGNAM-$VERSION
        sed -i "s|/usr/local|$PREFIX|g" Makefile src/luaconf.h
        sed -i 's|$(INSTALL_SHARE)/man/man1|$(DPREFIX)/man/man1|g' Makefile
        echo "$ARCH" | grep -q 64 &&  sed -i "s|/lib|/lib64|g" Makefile src/luaconf.h
        echo "$ARCH" | grep -q 64 &&  sed -i "s|lib/|lib64/|g" Makefile src/luaconf.h
        make
        make DESTDIR=$PKG install
        ( cd $PKG$PREFIX/bin/
            ln -s luajit-* luajit
        )
    )
)

( cd $PKG
    mkdir -p install
    cat <<EOF > install/slack-desc
$PRGNAM: $PRGNAM (a Just-In-Time Compiler for Lua.)
$PRGNAM: 
$PRGNAM: LuaJIT implements the full set of language features defined by Lua 5.1.
$PRGNAM: The virtual machine (VM) is API- and ABI-compatible to the standard Lua
$PRGNAM: interpreter and can be deployed as a drop-in replacement.
$PRGNAM: 
$PRGNAM: LuaJIT offers more performance, at the expense of portability. It currently
$PRGNAM: runs on all popular operating systems based on x86 or x64 CPUs
$PRGNAM: 
$PRGNAM: http://luajit.org/luajit.html
$PRGNAM: 
EOF

    chown -R root:root *

    [ -d $PKG/usr/man ] && find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;

    ( 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
    )

    makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$PACKAGER.txz
)