#!/bin/sh
# $Id$
# Copyright (c) 2006 Eric Hameleers <alien@slackware.com>
# -----------------------------------------------------------------------------
#
# Slackware SlackBuild script 
# ===========================
# By:        Eric Hameleers <alien@slackware.com>
# For:       MPlayer
# Descr:     MPEG-4 digital video technology
# URL:       http://www.mplayerhq.hu/
# Needs:     libdvdread > 0.9.6
# Changelog:
# 1.0rc1-1:   05/Nov/2006 by Eric Hameleers <alien@slackware.com>
#            * Initial build.
# 1.0rc1-2:   07/Nov/2006 by Eric Hameleers <alien@slackware.com>
#            * Removed MPlayer's internal libdvdcss code from the build, so
#              that MPlayer no longer plays encrypted DVD's by default (and the
#              package is now safe to upload to public repositories).
#              If it is allowed in your country, you can either install
#              libdvdcss (which is picked up automatically by MPlayer), or
#              rebuild MPlayer yourself using this SlackBuild - and set the
#              variable REMOVECSS="no" first (see further down).
#              Use this commandline if you can't or won't modify the script:
#                REMOVECSS="no" ./MPlayer.SlackBuild
# 1.0rc1-3:   08/Nov/2006 by Eric Hameleers <alien@slackware.com>
#             * Install the mplayer.conf into correct location '/etc/mplayer/'
# 1.0rc1-4:   15/mar/2007 by Eric Hameleers <alien@slackware.com>
#             * Differentiate between versions of X11 (modular X has another
#               install-prefix); update default skin; enable mplayer menu;
#               add security fix
# 
# Run 'sh SlackBuild --cleanup' to build a Slackware package.
# The package (.tgz) plus descriptive .txt file are created in /tmp .
# Install using 'installpkg'. 
#
# -----------------------------------------------------------------------------

# --- INIT ---
# Set initial variables:

PRGNAM=MPlayer
VERSION=${VERSION:-"1.0rc1"}
ARCH=${ARCH:-"i486"}
BUILD=${BUILD:-"4"}

DOCS="AUTHORS ChangeLog Copyright LICENSE README DOCS/HTML DOCS/tech"

CODECSDIR=/usr/lib/codecs   # Where the WIN32 codecs are expected for instance
DEFSKIN=${DEFSKIN:-"Blue"}  # Download more at http://www.mplayerhq.hu/design7/dload.html
SKINVER=${SKINVER:-"1.7"}
LANGUAGES="en nl fr de es"  # The default is to just add "en" documentation

# MPlayer will try to use one of the TrueType fonts present on the target
# system for it's On Screen Display (OSD) font.
# Slackware 11.0 ships with the Vera and DejaVu fonts, you may want to add
# more fonts to this list. The first font found will be used by creating a
# symbolic link "/usr/share/mplayer/subfont.ttf" to it.
# The use of bitmapped fonts is considered deprecated, but you can still use
# those if you want. Read http://www.mplayerhq.hu/DOCS/HTML/en/fonts-osd.html
# if you want to know more about OSD font configuration.
OSDFONTS="Arialuni.ttf arial.ttf DejaVuSans.ttf Vera.ttf"

# MPlayer source contains 'libmpdvdkit2' for reading DVD's. But this also
# contains a copy of libdvdcss which is considered illegal software in some
# countries.
# The SlackBuild removes this library before building MPlayer and links to
# the external library libdvdread instead, so that the resulting binary can be
# distributed without legal concerns.
# This also means that this SlackBuild creates a version of MPlayer that is
# unable to play encrypted DVD's (which is most DVD's on the market). If it is
# allowed in your country to use libdvdcss, this is not a big problem though.
# Install a copy of libdvdcss and it will be picked up automatically by the
# libdvdread library, so that MPlayer will again be able to play encrypted DVD's.
# Set REMOVECSS="no" if you want MPLayer to use it's internal dvdcss code.
REMOVECSS=${REMOVECSS:-yes}

# 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
[ "$XPREF" == "" ] && XPREF='/usr/X11R6'

# 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://www4.mplayerhq.hu/MPlayer/releases/MPlayer-1.0rc1.tar.bz2
SOURCE[0]="$SRCDIR/${PRGNAM}-${VERSION}.tar.bz2"
SRCURL[0]="http://www4.mplayerhq.hu/${PRGNAM}/releases/${PRGNAM}-${VERSION}.tar.bz2"

# The default skin to use (we need to add at least one)
SOURCE[1]="$SRCDIR/${DEFSKIN}-${SKINVER}.tar.bz2"
SRCURL[1]="http://www.mplayerhq.hu/MPlayer/skins/${DEFSKIN}-${SKINVER}.tar.bz2"

# Security fix:
SOURCE[2]="$SRCDIR/asmrules_fix_20061231.diff"
SRCURL[2]="http://www.mplayerhq.hu/MPlayer/patches/asmrules_fix_20061231.diff"

##
## --- 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}

if [ ! -d $TMP/tmp-$PRGNAM ]; then
  mkdir -p $TMP/tmp-$PRGNAM # location to build the source
elif [ "$P1" != "--oldbuild" ]; then
  # If the "--oldbuild" parameter is present, we keep
  #  the old build files and continue;
  # By default we remove the remnants of previous build and continue:
  rm -rf $TMP/tmp-$PRGNAM/*
fi

if [ "$PKG" = "" -o "$PKG" = "/" ] ; then
  echo "Please provide a sane value for the variable 'PKG'."
  exit 1
elif [ ! -d $PKG ]; then
  mkdir -p $PKG  # place for the package to be built
else
  rm -rf $PKG/*  # We always erase old package's contents:
fi

if [ ! -d $OUTPUT ]; then
  mkdir -p $OUTPUT  # place for the package to be saved
fi


# --- SOURCE FILE AVAILABILITY ---

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

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

# --- PACKAGE BUILDING ---

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

# Warn about libdvdread requirement:
if [ "$REMOVECSS" == "yes" ]; then
  echo -e "\n***\n*** You will need libdvdread installed if you want DVD support!!!\n***\n"
  sleep 2
fi

cd $TMP/tmp-$PRGNAM
echo "Extracting the source archive(s) for $PRGNAM..."
tar -xjvf ${SOURCE[0]}
cd ${PRGNAM}-${VERSION}
chown -R root.root *
chmod -R a-s,u+rw,go+r-w *

# Fix a security problem: read http://www.debian.org/security/2006/dsa-1244
patch -p0 < ${SOURCE[2]} 2>&1 | tee $OUTPUT/patch-${PRGNAM}.log

# Remove potentially illegal dvdcss code (in which case, make sure you have
# libdvdread installed before you start the compile!):
[ "$REMOVECSS" == "yes" ] && rm -rf libmpdvdkit2

# --- BUILDING ---

echo Building ...
# MPlayer wants to automatically determine compiler flags,
# so we don't provide CFLAGS:
./configure --prefix=/usr \
            --confdir=/etc/mplayer \
            --enable-runtime-cpudetection \
            --enable-gui \
            --enable-menu \
            --enable-largefiles \
            --with-codecsdir=${CODECSDIR} \
            --with-win32libdir=${CODECSDIR} \
            --language="${LANGUAGES}" \
            2>&1 | tee $OUTPUT/configure-${PRGNAM}.log
make 2>&1 | tee $OUTPUT/make-${PRGNAM}.log

#
# Install all the needed stuff to the package dir
#
# Use installwatch if available, to produce a logfile of the installation
# process that is more easily readable:
if `which installwatch  > /dev/null 2>&1`; then
  installwatch -o $OUTPUT/install-${PRGNAM}.log make DESTDIR=$PKG install
else
  make DESTDIR=$PKG install 2>&1 |tee $OUTPUT/install-${PRGNAM}.log
fi

# Prepare the configfile:
mkdir -p $PKG/etc/mplayer
cp etc/example.conf $PKG/etc/mplayer/mplayer.conf.new

# Fix the .desktop file
sed -i -e 's#^Icon=mplayer.xpm$#Icon=/usr/share/pixmaps/mplayer.xpm#' \
  $PKG/usr/share/applications/mplayer.desktop

# Install our default skin:
cd $PKG/usr/share/mplayer/skins
tar -xvf ${SOURCE[1]}
chown -R root:root *
ln -s ${DEFSKIN} default
cd -

# Installing a bitmap font is considered deprecated; use a TTF font instead:
# Instead, we try to link to an installed TTF font at install time.
#( cd $PKG/usr/share/mplayer/font
#  tar -xvf ${FONT}
#  ln -s font-arial-iso-8859-1/font-arial-${FONTSIZE}-iso-8859-1 font
#)

# Add this to the doinst.sh
! [ -d $PKG/install ] && mkdir -p $PKG/install
cat <<EOINS >> $PKG/install/doinst.sh
# Handle the incoming configuration files:
config() {
  for infile in \$1; do
    NEW="\$infile"
    OLD="\`dirname \$NEW\`/\`basename \$NEW .new\`"
    # If there's no config file by that name, mv it over:
    if [ ! -r \$OLD ]; then
      mv \$NEW \$OLD
    elif [ "\`cat \$OLD | md5sum\`" = "\`cat \$NEW | md5sum\`" ]; then
      # toss the redundant copy
      rm \$NEW
    fi
    # Otherwise, we leave the .new copy for the admin to consider...
  done
}

# Configure a default TrueType font to use for the OSD :
if [ ! -f usr/share/mplayer/subfont.ttf ]; then
  for font in ${OSDFONTS}; do
    if [ -f .${XPREF}/lib/X11/fonts/TTF/\${font} ]; then
      cd usr/share/mplayer/
      ln -sf ${XPREF}/lib/X11/fonts/TTF/\${font} subfont.ttf
      cd -
      break
    fi
  done
fi

# Prepare the new configuration file
config etc/mplayer/mplayer.conf.new
EOINS


# --- DOCUMENTATION ---

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a $DOCS $PKG/usr/doc/$PRGNAM-$VERSION || true
# Only keep the docs for languages that we want:
mv $PKG/usr/doc/$PRGNAM-$VERSION/HTML $PKG/usr/doc/$PRGNAM-$VERSION/html
mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION/HTML
for i in $LANGUAGES; do
  [ -d $PKG/usr/doc/$PRGNAM-$VERSION/html/$i ] && \
  mv $PKG/usr/doc/$PRGNAM-$VERSION/html/$i $PKG/usr/doc/$PRGNAM-$VERSION/HTML/
done
rm -rf $PKG/usr/doc/$PRGNAM-$VERSION/html
# Save a sample of all configuration files:
for i in etc/*.conf ; do
  cp $i $PKG/usr/doc/$PRGNAM-$VERSION/`basename $i`-sample
done
# Finally;
chmod -R a-w $PKG/usr/doc/$PRGNAM-$VERSION/*

# Compress the man page(s)
cd  $PKG/usr/man
find . -type f -name "*.?" -exec gzip -9f {} \;
for i in `find . -type l -name "*.?"` ; do ln -s $( readlink $i ).gz $i.gz ; rm $i ; done
cd -

# Strip binaries

find $PKG | xargs file | grep "executable" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
  find $PKG | xargs file | grep "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true


# --- OWNERSHIP, RIGHTS ---

chmod -R o-w $PKG


# --- 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
if [ -f $SRCDIR/slack-required ]; then
  cat $SRCDIR/slack-required > $PKG/install/slack-required
fi


# --- BUILDING ---

# 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
if [ -f $PKG/install/slack-required ]; then
  cat $PKG/install/slack-required > $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}.dep
fi


# --- CLEANUP ---

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