#!/bin/bash

# Slackware build script for kitty

# Written by B. Watson (yalhcru@gmail.com)

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

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

PRGNAM=kitty
VERSION=${VERSION:-0.19.3}
BUILD=${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 [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$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

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.xz
cd $PRGNAM-$VERSION
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 {} \+

# The Makefile ain't a real Makefile, everything's done in setup.py. Which
# has issues:
# - upstream claims harfbuzz >= 1.5 is required, but 14.2's 1.2 seems to work
#   just fine.
# - CFLAGS not supported, -O3 hardcoded. The OVERRIDE stuff works, but the
#   hardcoded -O3 comes *after* them on the gcc command line. Grr.
# - -Werror is used when compiling launcher.c, no way to disable. This assumes
#   upstream is perfect at writing code that compiles without warnings on every
#   version of gcc we might ever happen to use, and I don't believe it.
# So, sed surgery.

sed -i \
    -e "/at_least_version('harfbuzz/s,5,2," \
    -e 's,-O3,-O2,g' \
    -e 's,-Werror , ,g' \
    setup.py

# The -Wl,-s makes the linker strip the binaries.
OVERRIDE_CPPFLAGS="$SLKCFLAGS -Wl,-s" \
OVERRIDE_CFLAGS="$SLKCFLAGS -Wl,-s" \
  python3 setup.py --libdir-name lib$LIBDIRSUFFIX --verbose linux-package

mkdir -p $PKG/usr/bin $PKG/usr/share $PKG/usr/lib$LIBDIRSUFFIX
cp -a linux-package/bin/* $PKG/usr/bin
cp -a linux-package/share/* $PKG/usr/share
cp -a linux-package/lib*/* $PKG/usr/lib$LIBDIRSUFFIX

mv $PKG/usr/share/man $PKG/usr/man
gzip $PKG/usr/man/man?/*.?

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
mv $PKG/usr/share/doc/$PRGNAM/html $PKG/usr/doc/$PRGNAM-$VERSION
rm -rf $PKG/usr/share/doc/
cp -a CHANGELOG* CONTRIBUTING* README* LICENSE* $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# make slack-desc reflect the display types the package is built for
L=$PKG/usr/lib$LIBDIRSUFFIX/$PRGNAM/$PRGNAM
[ -e $L/glfw-x11.so ] && DISPLAYS+=" X11"
[ -e $L/glfw-wayland.so ] && DISPLAYS+=" Wayland"

mkdir -p $PKG/install
sed "s,@DISPLAYS@,$DISPLAYS," $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