#!/bin/sh

CWD=$(pwd)

PRGNAM=$(basename $CWD)
BRANCH=trunk
VERSION=$BRANCH$(date +%Y.%m.%d_%H.%M)
BUILD=1

ARCH=$(uname -m)

REPOSITORIES=/home/installs/SlackBuilds/repositories

TAG=cyco
TMP=/tmp/$TAG
PKG=$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://github.com/perl6/nqp.git nqp
    fi
)

mkdir -p $TMP
( cd $TMP
    rm -fr $PRGNAM-$VERSION && cp -R $REPOSITORIES/$PRGNAM $PRGNAM-$VERSION
    ( cd $PRGNAM-$VERSION
        perl Configure.pl \
            --prefix=$PREFIX \
            --libdir=$PREFIX/lib$(echo $ARCH | grep -o 64) \
            --mandir=$PREFIX/man \
            --infodir=$PREFIX/info
        make
        make DESTDIR=$PKG install
        mkdir -p $PKG/$PREFIX/doc/
        ( cd $PKG/$PREFIX/doc
            ln -s ../share/doc/parrot $PRGNAM-$VERSION
        )
    )
)

( cd $PKG
    mkdir -p install
    cat <<EOF > install/slack-desc
$PRGNAM: $PRGNAM (Not Quite Perl)
$PRGNAM: 
$PRGNAM: a lightweight Perl 6-like environment for virtual machines.  The key feature
$PRGNAM: of NQP is that it's designed to be a very small environment (as compared with,
$PRGNAM: say, perl6 or Rakudo) and is focused on being a high-level way to create
$PRGNAM: compilers and libraries for virtual machines (such as the Parrot Virtual
$PRGNAM: Machine [1]).  Unlike a full-fledged implementation of Perl 6, NQP strives to
$PRGNAM: have as small a runtime footprint as it can, while still providing a Perl 6
$PRGNAM: object model and regular expression engine for the virtual machine.
$PRGNAM: 
$PRGNAM: https://github.com/perl6/nqp
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-$BUILD$TAG.txz
)