#!/bin/bash

# Slackware build script for crystal-lang
#
# Copyright 2025 Jay Lanagan (j@lngn.net), Detroit, MI, USA.
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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

PRGNAM=crystal-lang
SRCNAM=crystal
VERSION=${VERSION:-1.16.3}
RELEASE=${RELEASE:-407}
BUILD=${BUILD:-1}
TAG=${TAG:-_lngn}
PKGTYPE=${PKGTYPE:-txz}

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

if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

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

if [ "$ARCH" = "i586" ]; then
  DEBARCH="i386"
  LIBDIRSUFFIX=""
  echo "This package is currently only available for 64bit."
  exit 1
elif [ "$ARCH" = "x86_64" ]; then
  DEBARCH="amd64"
  LIBDIRSUFFIX="64"
elif [ "$ARCH" = "aarch64" ]; then
  DEBARCH="arm64"
  LIBDIRSUFFIX="64"
else
  echo "Package for $(uname -m) architecture is not available."
  exit 1
fi

set -eu

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $PKG
ar p $CWD/${SRCNAM}_${VERSION}-${RELEASE}_$DEBARCH.deb data.tar.gz | tar xzv

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 {} \;

#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

# fix libs location
mkdir -p $PKG/usr/lib${LIBDIRSUFFIX}
mv $PKG/usr/lib/* $PKG/usr/lib${LIBDIRSUFFIX}
rm -rf $PKG/usr/lib

# move manpages
mkdir -p $PKG/usr/man
mv $PKG/usr/share/man/* $PKG/usr/man
rm -rf $PKG/usr/share/man

# move docs and remove lintian dir:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/usr/share/doc/$SRCNAM/* $PKG/usr/doc/$PRGNAM-$VERSION
rmdir $PKG/usr/share/doc/crystal/
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

rm -rf $PKG/usr/share/doc $PKG/usr/share/lintian

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/slack-required > $PKG/install/slack-required
#cat $CWD/doinst.sh > $PKG/install/doinst.sh

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