#!/bin/bash

# Build script for scala

# Written by Matthias Diehn Ingesman (matthias@pf-c.dk)
# Public domain.
# Updated by Andre Barboza <bmg.andre@gmail.com>

cd $(dirname $0) ; CWD=$(pwd)

PRGNAM=scala3
VERSION=${VERSION:-3.6.4}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# if running on jdk8, x86-32 is still supported
# however, starting with scala 3.8, jdk17 will be required
# and support for x86-32 will be over then
if [ "$ARCH" = "x86_64" ]; then
  LIBDIRSUFFIX="64"
else
  LIBDIRSUFFIX=""
fi

set -e

rm -rf "$PKG"
mkdir -p "$TMP" "$PKG" "$OUTPUT"
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION-x86_64-pc-linux.tar.gz
mv $PRGNAM-$VERSION-x86_64-pc-linux $PRGNAM-$VERSION
cd $PRGNAM-$VERSION
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

mkdir -p $PKG/usr/lib$LIBDIRSUFFIX/$PRGNAM $PKG/usr/{bin,doc}
mv $TMP/$PRGNAM-$VERSION/{bin,lib,libexec,maven2,VERSION} $PKG/usr/lib$LIBDIRSUFFIX/$PRGNAM
(
  cd $PKG/usr/bin
  ln -s ../lib$LIBDIRSUFFIX/$PRGNAM/bin/scala scala3
  ln -s ../lib$LIBDIRSUFFIX/$PRGNAM/bin/scalac scalac3
  ln -s ../lib$LIBDIRSUFFIX/$PRGNAM/bin/scaladoc scaladoc3
)
rm $PKG/usr/lib$LIBDIRSUFFIX/$PRGNAM/bin/*.bat

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir $PKG/usr/doc/$PRGNAM-$VERSION
# the version file is used by scala3 during runtime and must be included in /usr/lib/scala3/VERSION
cp $PKG/usr/lib$LIBDIRSUFFIX/$PRGNAM/VERSION $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE