#!/bin/bash
set -x -e

CWD=$(pwd)

PRGNAM=$(basename $CWD)
ARCH=$(uname -m)
VERSION=$(curl -s https://ziglang.org/download/index.json | jq 'keys' | grep -v master | grep -v \\\[ | grep -v \\\] | tr -d , | tr -d \" | tr -d \  | sort -V | tail -n1)
BUILD=1

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

# cleaning
rm -fr $PKG

# unpacking
[ ! -e $CWD/zig-linux-x86_64-${VERSION}.tar.gz ] && wget -c https://ziglang.org/download/0.8.0/zig-linux-x86_64-${VERSION}.tar.xz -O $CWD/zig-linux-x86_64-${VERSION}.tar.gz

mkdir -p $TMP
cd $TMP
tar xvf $CWD/zig-linux-x86_64-${VERSION}.tar.gz
cd zig-linux-x86_64-${VERSION}

# installation
mkdir -p $PKG$PREFIX/bin/
install -D zig $PKG$PREFIX/bin/zig

mkdir -p $PKG$PREFIX/doc/$PRGNAM
install -D LICENSE $PKG$PREFIX/doc/zig/LICENSE
cp -r lib $PKG$PREFIX
cp -r doc/ $PKG$PREFIX/doc/zig/

# packaging
cd $PKG
mkdir install
cat <<EOF > install/slack-desc
$PRGNAM: $PRGNAM (robust, optimal, and clear programming language)
$PRGNAM:
$PRGNAM: Zig is a general-purpose programming language and toolchain for
$PRGNAM: maintaining robust, optimal, and reusable software.
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: https://ziglang.org/
$PRGNAM:
EOF

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