#!/bin/bash

# Slackware build script for kmscon

# Written by B. Watson (urchlay@slackware.uk)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20250817 bkw:
# - update for v9.1.0 (libtsm v4.1.0).
# - add python3-meson-opt to REQUIRES, remove meson-compat.diff.

# 20230722 bkw: switch to Aetf's fork, which looks actively
# maintained. Thanks to lockywolf for finding it. Also, include
# libtsm here instead of as a separate build: it's been on SBo for ~9
# years and nothing but this ever depended on it.

# 20210825 bkw: update to the last git commit, post v8 release. It's from
# 2014, so I doubt there will be more version updates.

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

PRGNAM=kmscon
VERSION=${VERSION:-9.1.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

LIBNAM=libtsm
LIBVER=${LIBVER:-4.1.0}

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

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

set -e

# 20250817 bkw: meson can't easily be coerced to ignore the libs
# in /usr/lib64 if already installed. just punt, if the old libs
# are there.
if pkg-config --exists libtsm && ! pkg-config --exact-version=$LIBVER libtsm; then
  cat <<EOF

***
* An older version of kmscon's libtsm is installed. The build would
* fail. Get rid of it:

  removepkg kmscon

* ...and try this build again.
***

EOF
  exit 1
fi


TOPDIR=$TMP/$PRGNAM-build
rm -rf $PKG $TOPDIR
mkdir -p $TOPDIR $PKG $OUTPUT
cd $TOPDIR
tar xvf $CWD/$PRGNAM-$VERSION.tar.[xg]z
tar xvf $CWD/$LIBNAM-$LIBVER.tar.gz
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} + -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} +

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
LIBDOC=$PKGDOC/$LIBNAM-$LIBVER
mkdir -p $LIBDOC

# first, the library:
cd $TOPDIR/$LIBNAM-$LIBVER
mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DCMAKE_BUILD_TYPE=Release ..
  make
  make install/strip DESTDIR=$PKG
cd ..

cp -a COPYING LICENSE_htable NEWS README* $LIBDOC

export PKG_CONFIG_PATH=$PKG/usr/lib$LIBDIRSUFFIX/pkgconfig:$PKG_CONFIG_PATH

# now, build the app, using the lib we just built.
cd $TOPDIR/$PRGNAM-$VERSION

# 20250817 bkw: I could probably patch meson.build to work with 15.0's
# old meson, but I don't love meson enough to spend time learning how
# just at the moment. Thanks to fourtysixandtwo for providing a newer
# meson.
PYVER=$(python3 -c 'import sys; print("%d.%d" % sys.version_info[:2])')
export PYTHONPATH=/opt/python$PYVER/site-packages

mkdir build
cd build
  LDFLAGS="-L$PKG/usr/lib$LIBDIRSUFFIX -ldl" \
  CFLAGS="-I$PKG/usr/include $SLKCFLAGS" \
  meson setup .. \
    --buildtype=release \
    --infodir=/usr/info \
    --libdir=/usr/lib${LIBDIRSUFFIX} \
    --localstatedir=/var \
    --mandir=/usr/man \
    --prefix=/usr \
    --sysconfdir=/etc \
    -Dstrip=true
  "${NINJA:=ninja}" -v
  DESTDIR=$PKG $NINJA install
cd ..

gzip $PKG/usr/man/man1/$PRGNAM.1
mkdir -p $PKG/etc/$PRGNAM
cat $CWD/$PRGNAM.conf > $PKG/etc/$PRGNAM/$PRGNAM.conf.new

cp -a COPYING NEWS README* docs/*.txt $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$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