#!/bin/bash

# Slackware build script for bacon

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

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

# 20240812 bkw:
# - update for v5.0.
# - enable the GTK3 GUI.
# 20230814 bkw:
# - update to v4.7.
# - switch to self-hosted download, as upstreams disappears the
#   previous version immediately upon releasing a new one.
# - prescaled icons.
# - add CHANGES to doc dir.

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

PRGNAM=bacon
VERSION=${VERSION:-5.0}
BUILD=${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 [ ! -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

# The --enable-gui-* and --disable-gui-* don't actually work.
# We can't run autoreconf either (fails).
# The intent here is to build:
# The GTK3 gui if requested by the user (but never automatically),
# The FLTK gui if fltk is installed and not disabled with FLTK=no,
# or the TK gui if fltk is missing or disabled via FLTK=no.
# Either way, we don't currently support the gtk 2 gui (it depends
# on webkitgtk 2.x, which is outdated and gone from our repo).
if [ "${GTK3:-no}" = "yes" ]; then
  if ! pkg-config --exists gtksourceview-4; then
  cat <<EOF
$0: GTK=3 is set, but gtksourceview4 is not installed. Aborting.
EOF
    exit 1
  fi
  GUI="FLTK=false TK=false GTK3=true LEGACY=false"
  GUITYPE=GTK3
elif [ "${FLTK:-yes}" = "yes" -a -x /usr/bin/fltk-config ]; then
  GUI="FLTK=true TK=false GTK3=false LEGACY=false"
  GUITYPE=FLTK
else
  GUI="FLTK=false TK=true GTK3=false LEGACY=false"
  GUITYPE=TK
fi

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

# Keep the .xbm icon in a private directory, so nothing else accidentally
# uses it (it's ugly).
sed -i 's,/share/pixmaps/,/share/BaCon/,' bacon.bac

# I use this when editing the script, to avoid the 5+ minute build time.
# The C implementation is thousands of times faster than the shell script.
if [ "${CHEAT:-no}" = "yes" -a -x /usr/bin/bacon ]; then
  sed -i 's,\$(BSHELL) \./bacon\.sh,/usr/bin/bacon,' Makefile.in
fi

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --docdir=/usr/doc/$PRGNAM-$VERSION \
  --with-bash \
  --build=$ARCH-slackware-linux

# The -j1 really is needed here. Anyway the build process has a
# 5+ minute "Converting 'bacon.bac'" that has to finish before
# the other make targets can begin, so patching the Makefile to
# support parallelism wouldn't actually speed it up noticeably.
# The fakehome stuff is to keep it from creating or reading a
# /root/.bacon/bacon.cfg file (we don't want to write outside of $TMP).
mkdir -p $( pwd )/fakehome
HOME=$( pwd )/fakehome make -j1 $GUI
make -j1 install DESTDIR=$PKG $GUI

gzip -9 $PKG/usr/man/man*/*

# This is where we patched it to look for this icon:
mv $PKG/usr/share/pixmaps/BaCon.xbm $PKG/usr/share/BaCon/

# Various icons already in /usr/share/pixmaps. Prescale.
for icon in BaCon BaConEyes BaConStrip; do
  PNG=$PKG/usr/share/pixmaps/$icon.png
  for px in 16 22 32 48 64 128 256; do
    sz=${px}x${px}
    dir=$PKG/usr/share/icons/hicolor/$sz/apps
    mkdir -p $dir
    convert -resize $sz $PNG $dir/$icon.png
  done
done

# The GUI has the documentation path baked in, so symlink it to the
# the Slackware doc dir.
PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a README* CHANGES* $PKGDOC
ln -s ../../share/BaCon/documentation $PKGDOC/documentation
ln -s ../../share/BaCon/LICENSE $PKGDOC/LICENSE
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild

# The encscript synax file (bacon.st) gets installed to the right place.
# Move the others to the right places.
mkdir -p $PKG/usr/share/vim/vimfiles/syntax/
mv $PKG/usr/share/BaCon/syntax/bacon.vim $PKG/usr/share/vim/vimfiles/syntax/bacon.vim
mkdir -p $PKG/usr/share/gtksourceview-3.0/language-specs/
mkdir -p $PKG/usr/share/gtksourceview-4/language-specs
cp $PKG/usr/share/BaCon/syntax/bacon.lang $PKG/usr/share/gtksourceview-4/language-specs
mv $PKG/usr/share/BaCon/syntax/bacon.lang $PKG/usr/share/gtksourceview-3.0/language-specs/bacon.lang

# The vim syntax file works, but won't be used automatically without this:
mkdir -p $PKG/usr/share/vim/vimfiles/ftdetect
echo "au! BufRead,BufNewFile *.bac,*.bacon   setfiletype bacon" > \
     $PKG/usr/share/vim/vimfiles/ftdetect/bacon.vim

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