#!/bin/bash
#
# Slackware build script for zig
#
# Copyright 2022 Damian Perticone,  Berisso, Argentina
# Copyright 2026 r1w1s1
# 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=zig
VERSION=${VERSION:-0.16.0}
BUILD=${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 [ "$ARCH" = "i586" ]; then
  TARGET="x86-linux-gnu"
elif [ "$ARCH" = "i686" ]; then
  TARGET="x86-linux-gnu"
elif [ "$ARCH" = "x86_64" ]; then
  TARGET="x86_64-linux-gnu"
else
  TARGET="x86_64-linux-gnu"
fi

SRCNAM=zig-$VERSION
BOOTSTRAPNAM=zig-bootstrap-$VERSION
MCPU=${MCPU:-baseline}

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM $BOOTSTRAPNAM
tar xf $CWD/$SRCNAM.tar.xz
tar xf $CWD/$BOOTSTRAPNAM.tar.xz
chown -R root:root $SRCNAM $BOOTSTRAPNAM
cd $BOOTSTRAPNAM
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 {} \;

# CMake accepts only a numeric value here. SlackBuild CI may provide NUMJOBS
# as Make flags such as "-j13 -l13", which GNU make already handles.
case ${NUMJOBS:-} in
  ''|*[!0-9]*) ;;
  *) export CMAKE_BUILD_PARALLEL_LEVEL=$NUMJOBS ;;
esac
./build $TARGET $MCPU

install -Dm 755 out/zig-$TARGET-$MCPU/zig $PKG/usr/bin/zig
install -d $PKG/usr/lib/zig
cp -a out/zig-$TARGET-$MCPU/lib/. $PKG/usr/lib/zig/

find $PKG/usr/lib/zig -type d -exec chmod 755 {} \;

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 -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $TMP/$SRCNAM/LICENSE $PKG/usr/doc/$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