#!/bin/sh
# $Id$
# Copyright (c) 2008 Eric Hameleers <alien@slackware.com>
# All rights reserved.
#
#   Permission to use, copy, modify, and distribute this software for
#   any purpose with or without fee is hereby granted, provided that
#   the above copyright notice and this permission notice appear in all
#   copies.
#
#   THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
#   WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
#   IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
#   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
#   USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
#   ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
#   OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
#   OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
#   SUCH DAMAGE.
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:         Eric Hameleers <alien@slackware.com>
# For:        wqy-bitmapfont
# Descr:      WenQuanYi Unicode Chinese bitmap font
# URL:        http://wqy.sourceforge.net/
# Needs:      
# Changelog:  
# 0.9.9-1:    05/Feb/2008 by Eric Hameleers <alien@slackware.com>
#             * Initial build.
# 
# Run 'sh wqy-bitmapfont.SlackBuild --cleanup' to build a Slackware package.
# The package (.tgz) plus descriptive .txt file are created in /tmp .
# Install using 'installpkg'. 
#
# -----------------------------------------------------------------------------

# Set initial variables:

PRGNAM=wqy-bitmapfont
VERSION=${VERSION:-0.9.9}
ARCH=noarch
BUILD=${BUILD:-1}

DOCS="AUTHORS COPYING ChangeLog INSTALL* LOGO.png README"

# Where do we look for sources?
CWD=$(pwd)
SRCDIR=$(dirname $0)
[ "${SRCDIR:0:1}" == "." ] && SRCDIR=${CWD}/${SRCDIR}

# Place to build (TMP) package (PKG) and output (OUTPUT) the program:
TMP=${TMP:-/tmp/build}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

# Input URL: http://downloads.sourceforge.net/wqy/wqy-bitmapfont-pcf-0.9.9-0.tar.gz
SOURCE="$SRCDIR/${PRGNAM}-${VERSION}.tar.gz"
SRCURL="http://downloads.sourceforge.net/wqy/${PRGNAM}-pcf-${VERSION}-0.tar.gz"

##
## --- with a little luck, you won't have to edit below this point --- ##
##

# Exit the script on errors:
set -e
trap 'echo "$0 FAILED at line ${LINENO}" | tee $OUTPUT/error-${PRGNAM}.log' ERR
# Catch unitialized variables:
set -u
P1=${1:-1}

# Create working directories:
mkdir -p $OUTPUT          # place for the package to be saved
mkdir -p $TMP/tmp-$PRGNAM # location to build the source
mkdir -p $PKG             # place for the package to be built
rm -rf $PKG/*             # always erase old package's contents
if [ "$P1" != "--oldbuild" ]; then
  # Use the "--oldbuild" parameter to keep old build files and continue;
  # By default we remove the remnants of previous build and continue.
  rm -rf $TMP/tmp-$PRGNAM/*
fi

# Source file availability:
if ! [ -f ${SOURCE} ]; then
  if ! [ "x${SRCURL}" == "x" ]; then
    # Check if the $SRCDIR is writable at all - if not, download to $OUTPUT
    [ -w "$SRCDIR" ] || SOURCE="$OUTPUT/$(basename $SOURCE)"
    echo "Source '$(basename ${SOURCE})' not available yet..."
    echo "Will download file to $(dirname $SOURCE)"
    wget -nv -T 20 -O "${SOURCE}" "${SRCURL}" || true
    if [ $? -ne 0 -o ! -s "${SOURCE}" ]; then
      echo "Downloading '$(basename ${SOURCE})' failed... aborting the build."
      mv -f "${SOURCE}" "${SOURCE}".FAIL
      exit 1
    fi
  else
    echo "File '$(basename ${SOURCE})' not available... aborting the build."
    exit 1
  fi
fi

if [ "$P1" == "--download" ]; then
  echo "Download complete."
  exit 0
fi

# --- PACKAGE BUILDING ---

echo "++"
echo "|| $PRGNAM-$VERSION"
echo "++"

# Font directory location depends on the X build prefix:
# Determine what X we're running (the modular X returns the prefix
# in the next command, while older versions stay silent):
XPREF=`pkg-config --variable=prefix x11` || true
if [ "$XPREF" == "" ]; then
  XPREF='/usr/X11R6'
  FONTDIR="$XPREF/lib/X11/fonts/wenquanyi/wqy-bitmapsong"
else
  FONTDIR="/usr/share/fonts/wenquanyi/wqy-bitmapsong"
fi
mkdir -p $PKG$FONTDIR
mkdir -p $PKG/etc/fonts/conf.{d,avail}

cd $TMP/tmp-$PRGNAM
echo "Extracting the source archive(s) for $PRGNAM..."
if $(file ${SOURCE} | grep -q ": bzip2"); then
  tar -xjvf ${SOURCE}
elif $(file ${SOURCE} | grep -q ": gzip"); then
  tar -xzvf ${SOURCE}
fi
mv ${PRGNAM} ${PRGNAM}-${VERSION}
cd ${PRGNAM}-${VERSION}
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# Install the font files:
for font in $(ls *.pcf) ; do
  gzip -9cf $font > $PKG$FONTDIR/$font.gz
done
cp fonts.alias $PKG$FONTDIR/
# So that the package uninstalls cleanly:
touch $PKG$FONTDIR/fonts.{dir,scale}

# Install the fontconfig file.
# Patch it so that fontconfig will find the font directory:
patch -o $PKG/etc/fonts/conf.avail/85-wqy-bitmapsong.conf \
  85-wqy-bitmapsong.conf $SRCDIR/wqy-bitmapfont_fontconfig.patch
# Nasty habit of patch invoked like this is the attributes of 600:
chmod 644 $PKG/etc/fonts/conf.avail/85-wqy-bitmapsong.conf
( cd $PKG/etc/fonts/conf.d && \
  ln -sf ../conf.avail/85-wqy-bitmapsong.conf
)

# Create the doinst.sh instruction file:
mkdir -p $PKG/install
cat <<-EOT > $PKG/install/doinst.sh
	# Update X font indexes and the font cache:
	if [ -x .$XPREF/bin/mkfontdir ]; then
	  rm -f $FONTDIR/fonts.{dir,scale}
	  chroot . $XPREF/bin/mkfontdir $FONTDIR
	  cp ${FONTDIR}/fonts.dir ${FONTDIR}/fonts.scale
	fi
	if [ -x .$XPREF/bin/fc-cache ]; then
	  chroot . $XPREF/bin/fc-cache -f $FONTDIR
	fi
	
	# Inform user of actions left for him/her to do:
	echo ""
	echo "**"
	echo "To make the font permanemtly available in future X sessions,"
	echo "add the following line to your /etc/X11/xorg.conf :"
	echo "FontPath     \"${FONTDIR}/\""
	echo "**"
	echo "If you are running X at the moment, make the new fonts available"
	echo "immediately by running the following command in a terminal:"
	echo "xset +fp ${FONTDIR}/"
	echo "**"
	EOT

# Add documentation:
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
find $PKG/usr/doc -type f -exec chmod 644 {} \;

# Add a package description:
mkdir -p $PKG/install
cat $SRCDIR/slack-desc > $PKG/install/slack-desc
if [ -f $SRCDIR/doinst.sh ]; then
  cat $SRCDIR/doinst.sh >> $PKG/install/doinst.sh
fi

# Build the package:
cd $PKG
makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz 2>&1 | tee $OUTPUT/makepkg-${PRGNAM}.log
cd $OUTPUT
md5sum ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz > ${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.tgz.md5
cd -
cat $PKG/install/slack-desc | grep "^${PRGNAM}" > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.txt

# Clean up the extra stuff:
if [ "$P1" = "--cleanup" ]; then
  rm -rf $TMP/tmp-$PRGNAM
  rm -rf $PKG
fi