#!/bin/sh
set -x

CWD=$(pwd)

PRGNAM=$(basename $CWD)
VERSION=$(ls rpl-*.tar.?z* | cut -d - -f 2 | rev | cut -f 3- -d . | rev)

BUILD=1

ARCH=$(uname -m)
LIBSUFFIX=$(echo $ARCH | grep -o 64)

TAG=cyco
OUTPUT=/tmp
TMP=/tmp/$TAG
PKG=$TMP/pkg-$PRGNAM

PREFIX=/usr

# Cleaning
( cd $TMP
    rm -fr $PRGNAM-$VERSION
    rm -fr $PKG
)

# Fetching sources
( cd $TMP
    [ -e $CWD/$PRGNAM-$VERSION.tar.?z* ] \
        && tar xvf $CWD/$PRGNAM-$VERSION.tar.?z*
    # [ ! -e $PRGNAM-$VERSION ] \
    #     && wget -c http://$PRGNAM.googlecode.com/files/$PRGNAM-$VERSION.tar.bz2 \
    #     && tar xvf $PRGNAM-$VERSION.tar.?z*
)

# Preparation
( cd $TMP/$PRGNAM-$VERSION
    chown -R root:root .
    find . \
        \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
        -exec chmod 755 {} \; -o \
        \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
        -exec chmod 644 {} \;
)

# Configuration
( cd $TMP/$PRGNAM-$VERSION
    ./configure \
        --prefix=$PREFIX \
        --mandir=$PREFIX/man \
        --infodir=$PREFIX/info \
        --libdir=$PREFIX/lib$LIBSUFFIX \
        --enable-experimental #I heart danger
)

# Building
( cd $TMP/$PRGNAM-$VERSION
    make
)

# Installation
( cd $TMP/$PRGNAM-$VERSION
    make install DESTDIR=$PKG
)

# Cleaning
( 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 $PKG$PREFIX/man -type f -name "*.?" -exec gzip -9 {} \;
    find $PKG$PREFIX/info -name "dir" -exec rm {} \;
    find $PKG$PREFIX/info -type f -exec gzip -9 {} \;

    chown -R root:root .
    find . \
        \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
        -exec chmod 755 {} \; -o \
        \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
        -exec chmod 644 {} \;
)

# Packaging
( cd $PKG
    mkdir install
    cat <<EOF > $PKG/install/doinst.sh
cd /usr/info
for file in \$(ls *.gz | grep -v ".*\-[0-9]\+\.gz")
do
    install-info \$file ./dir
done
EOF

    cat <<EOF > $PKG/install/slack-desc
$PRGNAM: $PRGNAM (programming language)
$PRGNAM:
$PRGNAM: a programming language designed for scientific computations.
$PRGNAM: 
$PRGNAM: 
$PRGNAM: 
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: http://www.rpl2.net/
$PRGNAM:
EOF

    makepkg -l y -c n $OUTPUT/$PRGNAM-$(echo $VERSION | tr -d '-')-$ARCH-$BUILD$TAG.txz
)