#!/bin/bash

# variables
CWD=$(pwd)

PRGNAM=$(basename $CWD)
GITHUB_REPO=WebAssembly/wabt
VERSION=${VERSION:-latest}
ARCH=${ARCH:-$(uname -m)}
BUILD=1

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

REPOSITORY=/home/installs/SlackBuilds/_repositories/$PRGNAM

PREFIX=/usr

SLCKFLAGS=" -O "

# nettoyage préalable
rm -fr $PKG $TMP/$PRGNAM

mkdir -p $PKG

# mise en place
cd $TMP
[ ! -e $REPOSITORY ] && git clone --recursive https://github.com/${GITHUB_REPO} $REPOSITORY

cp -R $REPOSITORY $TMP/$PRGNAM
cd $TMP/$PRGNAM
[ "x$VERSION" == "xlatest" ] && VERSION=$(git describe --tags --abbrev=0)
[ "x$VERSION" == "x" ] && VERSION=trunk
[ "x$VERSION" == "xtrunk" ] && VERSION="git_r$(git rev-list --count HEAD)_$(git log -1 --format=%h)" || git checkout $VERSION

# configuration
mkdir build
cd build
cmake \
    -DCMAKE_INSTALL_PREFIX=$PREFIX \
    -DCMAKE_INSTALL_MANDIR=$PREFIX/man \
    ..

# compilation
cmake --build .

# installation
make install DESTDIR=$PKG

mkdir -p $PKG$PREFIX/doc/$PRGNAM
cd ..
cp *.md LICENSE $PKG$PREFIX/doc/$PRGNAM

# correction
cd $PKG
chown -R root:root *
[ -d usr/local ] && mv usr/local/* usr/ && rm -fr usr/local

find $PKG -name \.git\* -exec rm -fr {} \;

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

# # Strip binaries
# 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

# embaumement
mkdir -p $PKG/install
cat <<EOF > $PKG/install/slack-desc
$PRGNAM: $PRGNAM (The WebAssembly Binary Toolkit)
$PRGNAM:
$PRGNAM: WABT (we pronounce it "wabbit") is a suite of tools for WebAssembly
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://github.com/${GITHUB_REPO}
$PRGNAM:
EOF

# empaquetage
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$(echo $VERSION | sed 's/-//g')-$ARCH-$BUILD$TAG.txz