#!/bin/bash

# Slackware build script for hatari

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

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

# 20210102 bkw: update for v2.3.1.
# 20201218 bkw:
# - update for v2.3.0. Can't build older versions, sorry.
# - add new dep, python3.
# - really fix the man pages.

# 20200426 bkw:
# - BUILD=2
# - Include support for IPF and CTR images (copy-protected images),
#   with new optional dep libcapsimage.
# - Switch to cmake instead of using fake autotools.
# - Add missing chown/find/chmod after tarball extraction.
# - Doubleplusungood refs unfiles in man pages.
# - Install a couple more doc files in doc dir.
# - Patch hatariui to have it create a default user config file if
#   if can't find one, rather than dying.
# - Install utf-8 French man page in correct dir, also convert & install
#   a 8859-1 one.
# - Nitpick README and slack-desc.
# - Make cmake find readline, for history/completion in the debugger.

# 20191130 bkw: updated for v2.2.1.

# 20180612 bkw: updated for v2.1.0.

# 20170307 bkw:
# - BUILD=2
# - add missing mkdir -p $TMP $PKG $OUTPUT (wtf did I do?!)
# - binaries in /usr/games, not /usr/bin.
# - man pages in section 6, not 1.
# - install missing doc/fr/clavier-exemple.txt.
# - previously SDL2 was optional and undocumented, add SDL2=no option
#   and document in README.
# - stop spamming icon symlinks to /usr (they belong in $PKG/usr of course)
# - update mime and desktop stuff. upstream started including a mime XML
#   package, but it's missing some of the stuff from my hatari.xml. The
#   new hatari.xml incorporates upstream's new stuff.

# 20170122 bkw: updated for v2.0.0.

# 20160730 bkw:
# - updated for v1.9.0.
# - install some missing docs, including the French man page.
# - get rid of empty & useless /etc/hatari/ in package. strace
#   shows that hatari never even looks there for a conf file,
#   it looks for /etc/hatari.cfg (which we don't ship).

# 20141029 bkw: add missing : in VERSION BUILD TAG assignments

# 20140825 bkw:
# - updated for v1.8.0
# - install docs/manpages to right places, instead of moving after the fact
# - get rid of the need for a symlink /usr/doc/hatari
# - only symlink emutos.img -> tos.img if no link already exists, so
#   reinstalling the package won't reset the default ROM.
# - add mime type and auto-associate ST disk images and executables.

PRGNAM=hatari
VERSION=${VERSION:-2.3.1}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

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

CWD=$(pwd)
TMP=${TMP-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# Note: the -O2 here gets overridden by a -O3 that comes later on the
# command line. Upstream tests with -O3 so it should be fine.
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 $TMP/$PRGNAM-$VERSION
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
tar xvf $CWD/$PRGNAM-$VERSION.tar.bz2
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 {} \+

# hatariui will fail to start if there's no ~/.config/hatari/hatari.cfg.
# hatari's got a --saveconfig option that creates a default hatari.cfg,
# so let's have hatariui use that instead of failing.
patch -p1 < $CWD/hatariui-create-cfg-if-missing.diff

# Man pages go in section 6, fix .TH and see-also refs. Also fix a few
# typos and formatting issues.
P="$CWD/manpage.$VERSION.diff"
[ -e "$P" ] || P="$CWD/manpage.diff"
patch -p1 < $P

# cmake doesn't support anything like --bindir, --mandir, --docdir. cheat
# a little.
sed -i \
  -e 's,BINDIR *bin,BINDIR games,' \
  -e 's,share/man/man1,man/man6,' \
  -e "s,share/doc/$PRGNAM,doc/$PRGNAM-$VERSION," \
  CMakeLists.txt

# Hard-code the doc path in the UI (we don't use /usr/share/doc/hatari)
sed -i \
  -e "/path *= *path *+/s,=.*,= \"/usr/doc/$PRGNAM-$VERSION/\"," \
  python-ui/uihelpers.py

# see if we're building with SDL2 or not.
if pkg-config --exists sdl2 && [ "${SDL2:-yes}" != "no" ]; then
  SDL2OPT=""
  WITHSDL=2.0
else
  SDL2OPT="-DENABLE_SDL2:BOOL=0"
  WITHSDL=1.2
fi

# stoopid overcomplex SHOUTY cmake stuff...
sed -i 's/ncurses\.h/&;readline.h/' cmake/FindReadline.cmake

# and libcapsimage 5.1 doesn't support a couple of typedefs that
# existed in 4.2.
# 20201218 bkw: the source says '#include <caps/CapsLibAll.h>' but
# we need <caps5/CapsLibAll.h>.
sed -i \
    -e '1i#include <stdint.h>' \
    -e 's,CapsLong,int32_t,g' \
    -e 's,CapsULong,uint32_t,g' \
    -e '/#include/s,caps/,caps5/,' \
  src/floppy_ipf.c

# 20200427 bkw: upstream actually runs cmake directly in the source
# dir rather than the "mkdir build; cd build; cmake .." stuff from
# our template. I'm going to do it their way.
# 20201218 bkw: I really should not have to tell cmake to look in
# /usr/include for the libcapsimage headers, that is *the systemwide
# default location* for includes, and has been since the 1970s. Grr.
cmake \
  -DCAPSIMAGE_INCLUDE_DIR=/usr/include \
  -DCMAKE_VERBOSE_MAKEFILE=TRUE \
  $SDL2OPT \
  -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
  -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
  -DCMAKE_INSTALL_PREFIX=/usr \
  -DLIB_SUFFIX=${LIBDIRSUFFIX} \
  -DMAN_INSTALL_DIR=/usr/man \
  -DCMAKE_BUILD_TYPE=Release .

# Hard-coded paths for icon symlinks, they end up getting created in the
# real /usr, not $PKG/usr.
sed -i 's,\(^\t*\)\(/usr/share\),\1'$PKG'\2,' share/cmake_install.cmake

make
make install/strip DESTDIR=$PKG

# man pages are in the right dir, but with .1
rename .1. .6. $PKG/usr/man/man6/*.1.gz

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

# These docs don't get installed for some reason:
cp tools/hmsa/readme-hmsa.txt readme.txt gpl.txt \
   doc/changelog.txt doc/coding.txt doc/toc.js \
   doc/video-recording.txt doc/fr/clavier-exemple.txt \
   doc/de/*.txt \
   $DOCDIR

# The UI has its own docs. These are actually used by the UI, so they
# must be available in /usr/share/hatari (hence the symlinks).
UIDOCDIR=$DOCDIR/${PRGNAM}ui
mkdir -p $UIDOCDIR
for i in README TODO release-notes.txt; do
  ln -s ../../../share/$PRGNAM/${PRGNAM}ui/$i $UIDOCDIR/$i
done

# Someone might find the French man page useful. It's in utf-8, so
# put it in the right dir.
mkdir -p $PKG/usr/man/fr.UTF-8/man6 $PKG/usr/man/fr/man6
gzip -9c < doc/fr/$PRGNAM.1 > $PKG/usr/man/fr.UTF-8/man6/$PRGNAM.6.gz
# For non-UTF-8 users:
iconv --to ISO-8859-1 doc/fr/$PRGNAM.1 | \
  gzip -9c > $PKG/usr/man/fr/man6/$PRGNAM.6.gz

# Replace .desktop with modified one, auto-associates ST disks/executables.
cat $CWD/${PRGNAM}ui.desktop > $PKG/usr/share/applications/${PRGNAM}ui.desktop

# Custom MIME types for ST disk images and executables. Based on hatari.xml
# from upstream, with x-st-executable type added by script author.
mkdir -p $PKG/usr/share/mime/packages
cat $CWD/$PRGNAM.xml > $PKG/usr/share/mime/packages/$PRGNAM.xml

for i in $PKG/usr/share/icons/hicolor/[0-9]*; do
  ln -s application-x-st-disk-image.png $i/mimetypes/x-st-executable.png
done

ln -s application-x-st-disk-image.svg \
      $PKG/usr/share/icons/hicolor/scalable/mimetypes/x-st-executable.png

# Don't symlink emutos to tos here, do it conditionally in doinst.sh.
( cd $PKG/usr/share/$PRGNAM && mv tos.img emutos.img )

WITHLCAPS=without
ldd $PKG/usr/games/$PRGNAM | grep -q libcapsimage && WITHLCAPS=with

mkdir -p $PKG/install
sed -e "s,@WITHSDL@,$WITHSDL," \
    -e "s,@WITHLCAPS@,$WITHLCAPS," \
	 $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:-tgz}