#!/bin/bash

# Slackware build script for commandergenius

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

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

# 20210310 bkw: updated for 2.7.7
# 20201224 bkw: updated for 2.7.3
# 20201111 bkw: updated for 2.6.3.1
# 20201030 bkw: updated for 2.6.3
# 20200302 bkw: updated for 2.3.9
# 20191202 bkw: updated for 2.3.8
# 20180911 bkw: updated for 2.2.3
# 20180709 bkw: updated for 2.2.2
# - upstream moved the project from github to gitlab. one nice side-effect
#   of this is that the GsKit stuff is now included in the release tarball,
#   which simplifies this script quite a bit. the downside of that is that
#   this script can no longer build older versions.
# - SDL2 and python3 are now required.

# 20180101 bkw: updated for 2.0.0
# 20171222 bkw: updated for 1.9.9.8beta
# 20170826 bkw: updated for 1.9.9.5beta
# 20170725 bkw: updated for 1.9.9.2beta
# 20170301 bkw:
# - updated for 1.9.8.7beta
# - fix the build for the case where SDL2 is installed but SDL2_image is not.
# - update man page (level= option, correct author's full name)
# - use github long-form URL
# 20170122 bkw: updated for 1.9.8.1beta.

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

PRGNAM=commandergenius
VERSION=${VERSION:-2.7.7}
BUILD=${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

# I wish upstream would pick a name and stick with it... they also use
# ~/.CommanderGenius for user data, and their README mentions CGenius.
SRCNAM="Commander-Genius"
EXENAME="CGeniusExe"
DESKTOP="cgenius.desktop"

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $SRCNAM-v$VERSION
# OSX and Windows stuff takes up 31MB in /tmp, no need to extract it.
tar xvf $CWD/$SRCNAM-v$VERSION.tar.bz2 \
        --wildcards --exclude='*/dlls' --exclude='*/Build/Xcode'
cd $SRCNAM-v$VERSION
chown -R root:root .

# permissions are blethcherous, please don't revert to template here.
find -L . -type f -a -exec chmod 644 '{}' '+'
find -L . -type d -a -exec chmod 755 '{}' '+'

# placate desktop-file-validate
sed -i 's,Application;,,' share/$DESKTOP

mkdir -p build
cd build
  export "PATH=/opt/cmake-202x/bin:$PATH"
  cmake \
    -DUSE_SDL2=yes \
    -DGAMES_SHAREDIR:STRING=/usr/share/games \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DMAN_INSTALL_DIR=/usr/man \
    -DCMAKE_BUILD_TYPE=Release ..
  make VERBOSE=1
  make install/strip DESTDIR=$PKG
cd ..

# upstream installs 2 identical-looking (but not byte-identical) icons
rm -f $PKG/usr/share/icons/hicolor/512x512/apps/CGLogo.png
ln -s ../../../../games/$PRGNAM/cglogo512.png \
      $PKG/usr/share/icons/hicolor/512x512/apps/CGLogo.png

# grrrr. don't force command-line users to remember the name is CGeniusExe
ln -s $EXENAME $PKG/usr/games/$PRGNAM

# the High Quality Pack. this is redundant for Keen 1 and 4 (just download
# the Special versions of these games), so we only install the data for
# 2 and 3. strace shows the files are being loaded, but TBH I haven't
# played these games enough to notice the difference with/without the HQP.
rm -rf hqp/games/keen1 hqp/games/keen4
cp -a hqp/* $PKG/usr/share/games/$PRGNAM

# man page written for this SlackBuild.
mkdir -p $PKG/usr/man/man6
gzip -9c < $CWD/$PRGNAM.6 > $PKG/usr/man/man6/$PRGNAM.6.gz
ln -s $PRGNAM.6.gz $PKG/usr/man/man6/$EXENAME.6.gz

# upstream installs most of the docs in /usr/share/games/$PRGNAM...
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a COPYRIGHT $PKG/usr/doc/$PRGNAM-$VERSION
for i in README changelog.txt Readme_hqp.txt; do
  ln -s ../../share/games/$PRGNAM/$i $PKG/usr/doc/$PRGNAM-$VERSION
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