#!/bin/bash

# Slackware build script for modemu2k

# Copyright 2022-2026 Andy Alt / United States
# All rights reserved.

# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:

# 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=modemu2k
VERSION=${VERSION:-0.2.2}
SOURCEARCHIVE=$PRGNAM-$VERSION.tar.xz
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

# Run `meson test` after build when TEST=yes is exported. Results are
# logged into the package's documentation directory.
TEST="${TEST:-no}"

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}

LIBDIRSUFFIX=""
if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION

# Read the .info and make sure the md5sum matches.
if ! echo "$(grep '^MD5SUM=' $CWD/$PRGNAM.info | cut -d'"' -f2)  $CWD/$SOURCEARCHIVE" | md5sum -c - ; then
  echo "ERROR: MD5 checksum mismatch for $SOURCEARCHIVE" >&2
  exit 1
fi

tar xvf $CWD/$SOURCEARCHIVE
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 build
cd build
CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
meson setup .. \
  --buildtype=release \
  --strip \
  --libdir="/usr/lib$LIBDIRSUFFIX" \
  --mandir=/usr/man \
  --prefix=/usr \
  -Ddocdir=/usr/doc/$PRGNAM-$VERSION \
  -Dgen-docs=true \
  -Dhelper-scripts=true

ninja

if [ "$TEST" = "yes" ]; then
  mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
  meson test --print-errorlogs 2>&1 | tee $PKG/usr/doc/$PRGNAM-$VERSION/test_results.txt
fi

meson install --destdir $PKG
cd ..

find $PKG/usr/man -type f -exec gzip -9 {} \;
for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done

cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

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