#!/bin/bash

CWD=$(pwd)
PRGNAM=$(basename $CWD)
TMP=${TMP:-/tmp/$TAG}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

ARCH="noarch"
VERSION=${VERSION:-$(curl -s https://api.github.com/repos/yarnpkg/yarn/releases/latest | grep tag_name | grep -o "v[0-9.]*" | tr -d v)}
BUILD=${BUILD:-1}
TAG=${TAG:-gwh}

rm -rf $PKG
mkdir -p $PKG/opt $PKG/usr/bin $OUTPUT
cd $PKG/opt/

wget -c https://github.com/yarnpkg/yarn/releases/download/v${VERSION}/yarn-v${VERSION}.tar.gz -O yarn.tar.gz
tar xvf yarn.tar.gz
rm yarn.tar.gz
mv $PKG/opt/dist $PKG/opt/$PRGNAM
rm $PKG/opt/$PRGNAM/bin/*.cmd

ln -s /opt/$PRGNAM/bin/yarn $PKG/usr/bin/yarn
ln -s /opt/$PRGNAM/bin/yarnpkg $PKG/usr/bin/yarnpkg

# Make sure top-level perms are correct:
chmod 0755 $PKG/usr/bin/yarn*

mkdir -p $PKG/install
cat <<EOF > $PKG/install/slack-desc
           # HOW TO EDIT THIS FILE:
           # The "handy ruler" below makes it easier to edit a package description.  Line
           # up the first '|' above the ':' following the base package name, and the '|'
           # on the right side marks the last column you can put a character in.  You must
           # make exactly 11 lines for the formatting to be correct.  It's also
           # customary to leave one space after the ':'.

       |-----handy-ruler----------------------------------------------------|
$PRGNAM: $PRGNAM (package management for JS)
$PRGNAM:
$PRGNAM: Fast, reliable, and secure dependency management for Javascript.
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM:
$PRGNAM: Homepage:  https://yarnpkg.com/
$PRGNAM:
EOF

cd $PKG
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg --linkadd y --chown n --prepend $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.txz