#! /bin/sh
# ==================================================================
# POV-Ray 3.6 - binary Linux version - install script
# ==================================================================
# written July 2003 - June 2004 by Christoph Hormann
# based on very basic install script by Mark Gordon
# This file is part of POV-Ray and subject to the POV-Ray licence
# see POVLEGAL.DOC for details.
# ------------------------------------------------------------------
# for documentation of available options see the
# README/README.bin file.
# ==================================================================

# @@KDE_BEGIN@@

VERSION=3.6
VER_DIR=povray-$VERSION
DEFAULT_DIR=/usr/local
SYSCONFDIR=$DEFAULT_DIR/etc

# ==================================================================
#    Add read+write path to user povray.conf file
# ==================================================================

add_readwrite_conf()
{
  DIR_NAME=$1
  CONF_FILE="$HOME/.povray/$VERSION/povray.conf"

  echo "  checking conf file $CONF_FILE"

  if [ ! -f "$CONF_FILE" ] ; then
		cp -f "$SYSCONFDIR/povray.conf" "$CONF_FILE"
  fi

  if [ -w "$CONF_FILE" ] ; then

		if grep -E -i "$DIR_NAME" "$CONF_FILE" > /dev/null ; then
			echo "    - file does not need to be modified"
		else
			echo "    - adding new read+write path"

			cp -f "$CONF_FILE" "$CONF_FILE.bak"

			grep -B 1000 -E -i "^\[Permitted Paths\]" "$CONF_FILE.bak" > "$CONF_FILE" 2> /dev/null

			echo ";--- Lines added by POV-Ray $VERSION install script ---" >> "$CONF_FILE"
			echo "read+write* =  \"$DIR_NAME\"" >> "$CONF_FILE"
			echo ";---------------------------------------------------" >> "$CONF_FILE"

			grep -A 1000 -E -i "^\[Permitted Paths\]" "$CONF_FILE.bak" | sed "/^\[Permitted Paths\]/d" >> "$CONF_FILE" 2> /dev/null

			rm -f "$CONF_FILE.bak"

		fi

  else
    echo "Error: could not modify povray.conf"
  fi
}

# ==================================================================
#    Add read path to user povray.conf file
# ==================================================================

add_read_conf()
{
  DIR_NAME=$1
  CONF_FILE="$HOME/.povray/$VERSION/povray.conf"

  echo "  checking conf file $CONF_FILE"

  if [ ! -f "$CONF_FILE" ] ; then
		cp -f "$SYSCONFDIR/povray.conf" "$CONF_FILE"
  fi

  if [ -w "$CONF_FILE" ] ; then

		if grep -E -i "$DIR_NAME" "$CONF_FILE" > /dev/null ; then
			echo "    - file does not need to be modified"
		else
			echo "    - adding new read path"

			cp -f "$CONF_FILE" "$CONF_FILE.bak"

			grep -B 1000 -E -i "^\[Permitted Paths\]" "$CONF_FILE.bak" > "$CONF_FILE" 2> /dev/null

			echo ";--- Lines added by POV-Ray $VERSION install script ---" >> "$CONF_FILE"
			echo "read* =  \"$DIR_NAME\"" >> "$CONF_FILE"
			echo ";---------------------------------------------------" >> "$CONF_FILE"

			grep -A 1000 -E -i "^\[Permitted Paths\]" "$CONF_FILE.bak" | sed "/^\[Permitted Paths\]/d" >> "$CONF_FILE" 2> /dev/null

			rm -f "$CONF_FILE.bak"

		fi

  else
    echo "Error: could not modify povray.conf"
  fi
}

# ==================================================================
#    Determine installation dir from Library_path settings in ini
# ==================================================================

install_dir()
{
  if [ -z "$POVINI" ] ; then
    test -f "$SYSCONFDIR/povray.ini" && POVINI="$SYSCONFDIR/povray.ini"
    test -f "$HOME/.povrayrc" && POVINI="$HOME/.povrayrc"
    test -f "$SYSCONFDIR/povray/$VERSION/povray.ini" && POVINI="$SYSCONFDIR/povray/$VERSION/povray.ini"
    test -f "$HOME/.povray/$VERSION/povray.ini" && POVINI="$HOME/.povray/$VERSION/povray.ini"
  fi

  if [ ! -z "$POVINI" ] ; then
    # this is not a completely failsafe method but it should work in most cases
    INSTALL_DIR=`grep -E -i "^library_path=.*share/$VER_DIR" "$POVINI" | head -n 1 | sed "s?[^=]*=\"*??;s?/share/$VER_DIR.*??"`
    echo "$INSTALL_DIR"
  fi
}

# ==================================================================
#    Add file name to install log
# ==================================================================

log_install()
{
  if [ -w "$DEFAULT_DIR/share/$VER_DIR/" ] ; then
		LOG_NAME="$DEFAULT_DIR/share/$VER_DIR/install.log"
	else
    if [ -w "$HOME/.povray/$VERSION/" ] ; then
			LOG_NAME="$HOME/.povray/$VERSION/install.log"
		else
		  return 0
		fi
  fi

  if [ -z "$1$2" ] ; then
		rm -f "$LOG_NAME"
	fi

	if [ ! -f "$LOG_NAME" ] ; then
	  echo "# POV-Ray version $VERSION install log" > "$LOG_NAME"
	  echo "# started `date`" >> "$LOG_NAME"
	fi

  if [ "$1" = "B" ] ; then
		FILE_NAME=`echo "$2" | sed "s? ?%?g"`
    FILE_NAME="$FILE_NAME $3"
  else 
		FILE_NAME=`echo "$2" | sed "s? ?%?g"`
	fi

	echo "$1 $FILE_NAME" >> "$LOG_NAME"
}

# ==================================================================
#    install KDE panel entries
# ==================================================================

kde_install()
{
  if [ -z "$1" ] ; then
    INSTALL_DIR=`install_dir`
  else
    INSTALL_DIR="$1"
  fi

  if [ -z "$INSTALL_DIR" ] ; then
    echo "------------------------------------------------------"
    echo "KDE integration NOT successful."
    echo "The directory where POV-Ray is installed could not be" 
    echo "determined.  Make sure POV-Ray is correctly installed"
    echo "on this computer"
    echo "------------------------------------------------------"
    return 0
  fi

  echo "------------------------------------------------------"
  echo "installing KDE integration for user '$USER'..."

  if [ -z "$KDEHOME" ] ; then 
    if [ -d "$HOME/.kde" ] ; then 
      KDEHOME="$HOME/.kde"
    else
      echo "could not determine user KDEHOME directory."
      echo "make sure KDE is correctly installed"
      return 0
    fi
  else
    if [ ! -d "$KDEHOME" ] ; then
      echo "user KDEHOME directory ($KDEHOME) does not exist"
      return 0
    fi
  fi

  if [ ! -w "$KDEHOME" ] ; then
    echo "no write permission for user KDEHOME directory ($KDEHOME)"
    return 0
  fi

  test -d "$KDEHOME/share" || mkdir "$KDEHOME/share"

  if [ -d "$INSTALL_DIR/share/$VER_DIR/icons" ] ; then

    echo "  copying POV-Ray icons..."

    test -d "$KDEHOME/share/icons" || mkdir "$KDEHOME/share/icons"

		ICON_SETS="hicolor crystalsvg slick"

		for ICON_SET in $ICON_SETS ; do

			case $ICON_SET in
				"hicolor")
					ICON_SET_INTERN="classic"
					;;
				"crystalsvg")
					ICON_SET_INTERN="crystal"
					;;
				"slick")
					ICON_SET_INTERN="slick"
					;;
			esac

			test -d "$KDEHOME/share/icons/$ICON_SET" || mkdir "$KDEHOME/share/icons/$ICON_SET"

			ICON_SIZES="16 32 48 64"

			for ICON_SIZE in $ICON_SIZES ; do

				test -d "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}" || mkdir "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}"
				test -d "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/mimetypes" || mkdir "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/mimetypes"
				cp -f "$INSTALL_DIR/share/$VER_DIR/icons/file_pov_classic_16.png" "$KDEHOME/share/icons/hicolor/16x16/mimetypes/povsdl_pov.png"

				if [ "$ICON_SET" = "hicolor" ] ; then
					test -d "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/apps" || mkdir "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/apps"
					cp -f "$INSTALL_DIR/share/$VER_DIR/icons/povray_${ICON_SIZE}.png" "$KDEHOME/share/icons/hicolor/${ICON_SIZE}x${ICON_SIZE}/apps/povray.png"
					log_install "F" "$KDEHOME/share/icons/hicolor/${ICON_SIZE}x${ICON_SIZE}/apps/povray.png"
				fi

				cp -f "$INSTALL_DIR/share/$VER_DIR/icons/file_pov_${ICON_SET_INTERN}_${ICON_SIZE}.png" "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/mimetypes/povsdl_pov.png"
				cp -f "$INSTALL_DIR/share/$VER_DIR/icons/file_inc_${ICON_SET_INTERN}_${ICON_SIZE}.png" "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/mimetypes/povsdl_inc.png"
				log_install "F" "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/mimetypes/povsdl_pov.png"
				log_install "F" "$KDEHOME/share/icons/$ICON_SET/${ICON_SIZE}x${ICON_SIZE}/mimetypes/povsdl_inc.png"

			done

		done

    ICON_FILE="povray.png"

    echo "  generating POV-Ray file types..."

    test -d "$KDEHOME/share/mimelnk/text" || mkdir -p "$KDEHOME/share/mimelnk/text"

    echo "[Desktop Entry]
Comment=POV-Ray script file
Icon=povsdl_pov
Type=MimeType
MimeType=text/x-povray-script
Patterns=*.pov;*.POV;
" > "$KDEHOME/share/mimelnk/text/x-povray-script.desktop"

		log_install "F" "$KDEHOME/share/mimelnk/text/x-povray-script.desktop"

    echo "[Desktop Entry]
Comment=POV-Ray include file
Icon=povsdl_inc
Type=MimeType
MimeType=text/x-povray-include
Patterns=*.inc;*.INC;
" > "$KDEHOME/share/mimelnk/text/x-povray-include.desktop"

		log_install "F" "$KDEHOME/share/mimelnk/text/x-povray-include.desktop"

  else

    echo "Could not find required files, make sure POV-Ray $VERSION is correctly installed"
    echo ""

  fi

  echo "  installing main POV-Ray $VERSION submenu..."

  if [ ! -d "$KDEHOME/share/applnk" ] ; then 
		mkdir -p "$KDEHOME/share/applnk"
    KDE_PANEL_DIR="$KDEHOME/share/applnk/$VER_DIR"
  else
    KDE_PANEL_DIR="$KDEHOME/share/applnk/$VER_DIR"
  fi

  if [ -d "$KDE_PANEL_DIR" ] ; then 
    rm -rf $KDE_PANEL_DIR/*
  else
    mkdir "$KDE_PANEL_DIR"
  fi

	log_install "F" "$KDE_PANEL_DIR"

  echo "[Desktop Entry]
Name=POV-Ray $VERSION
Icon=povray
" > "$KDE_PANEL_DIR/.directory"

  echo "  installing ini file link..."

  if [ -f "$HOME/.povray/$VERSION/povray.ini" ] ; then
    POVINI="$HOME/.povray/$VERSION/povray.ini"
    echo "[Desktop Entry]
Type=Application
Exec=kwrite $POVINI
Icon=txt
Name=edit user povray ini file (~/.povray/$VERSION/povray.ini)
" > "$KDE_PANEL_DIR/ini.desktop"
  else
    POVINI="$SYSCONFDIR/povray/$VERSION/povray.ini"
    echo "[Desktop Entry]
Type=Application
Exec=kdesu kwrite $POVINI
Icon=txt
Name=edit global povray.ini file
" > "$KDE_PANEL_DIR/ini.desktop"
  fi

  echo "  installing configuration file link..."

  if [ -f "$HOME/.povray/$VERSION/povray.conf" ] ; then
    POVCONF="$HOME/.povray/$VERSION/povray.conf"
    echo "[Desktop Entry]
Type=Application
Exec=kwrite $POVCONF
Icon=txt
Name=edit IO-restrictions configuration file (~/.povray/$VERSION/povray.conf)
" > "$KDE_PANEL_DIR/conf_user.desktop"
  fi

  if [ -f "$SYSCONFDIR/povray/$VERSION/povray.conf" ] ; then
    POVCONF="$SYSCONFDIR/povray/$VERSION/povray.conf"
    echo "[Desktop Entry]
Type=Application
Exec=kdesu kwrite $POVCONF
Icon=txt
Name=edit global IO-restrictions configuration file
" > "$KDE_PANEL_DIR/conf_sys.desktop"
  fi

  echo "  installing documentation link..."

  echo "[Desktop Entry]
Type=Application
Exec=konqueror $INSTALL_DIR/share/doc/$VER_DIR/html/index.html
Icon=html
Name=Documentation
" > "$KDE_PANEL_DIR/docu.desktop"

  echo "[Desktop Entry]
Type=Application
Exec=konqueror $INSTALL_DIR/share/doc/$VER_DIR/html/povlegal.html
Icon=html
Name=The POV-Ray licence (POVLEGAL.DOC)
" > "$KDE_PANEL_DIR/povlegal.desktop"

  echo "[Desktop Entry]
Type=Application
Exec=povray -benchmark ; read
Icon=exec
Name=run benchmark
Terminal=1
" > "$KDE_PANEL_DIR/benchmark.desktop"

  if [ -d "$INSTALL_DIR/share/$VER_DIR/scripts/" ] ; then

    echo "  installing sample scene render links..."

    if [ -w "$INSTALL_DIR/share/$VER_DIR" ] ; then 
      SAMPLE_RESULTS_DIR="$INSTALL_DIR/share/$VER_DIR"
    else
      SAMPLE_RESULTS_DIR="$HOME/$VER_DIR"
      test -d "$SAMPLE_RESULTS_DIR" || mkdir "$SAMPLE_RESULTS_DIR"
      echo "This directory is generated by the POV-Ray $VERSION install script 
to contain the sample scene renders generated by the corresponding
entries in the KDE panel menu." > "$SAMPLE_RESULTS_DIR/README" 
    fi
    
    test -d "$SAMPLE_RESULTS_DIR/samples" || mkdir "$SAMPLE_RESULTS_DIR/samples"
    test -d "$SAMPLE_RESULTS_DIR/portfolio" || mkdir "$SAMPLE_RESULTS_DIR/portfolio"

    echo "Here you can find the rendered sample animations after running the sample animations render script" > "$SAMPLE_RESULTS_DIR/samples/animations.html"    
    echo "Here you can find the rendered sample scenes after running the sample scenes render script" > "$SAMPLE_RESULTS_DIR/samples/stills.html"   
    echo "Here you can find the portfolio after running the portfolio render script" > "$SAMPLE_RESULTS_DIR/portfolio/index.html"   

    if [ -d "$KDE_PANEL_DIR/samples" ] ; then 
      rm -rf $KDE_PANEL_DIR/samples*
    else
      mkdir "$KDE_PANEL_DIR/samples"
    fi

    echo "[Desktop Entry]
Name=Sample scenes
Icon=folder
" > "$KDE_PANEL_DIR/samples/.directory"

    echo "[Desktop Entry]
Type=Application
Exec=$INSTALL_DIR/share/$VER_DIR/scripts/allscene.sh -o $SAMPLE_RESULTS_DIR/samples -h $SAMPLE_RESULTS_DIR/samples/stills.html
Icon=exec
Name=render sample scenes (stills)
Terminal=1
" > "$KDE_PANEL_DIR/samples/render_stills.desktop"

    echo "[Desktop Entry]
Type=Application
Exec=$INSTALL_DIR/share/$VER_DIR/scripts/allanim.sh -o $SAMPLE_RESULTS_DIR/samples -h $SAMPLE_RESULTS_DIR/samples/animations.html
Icon=exec
Name=render sample scenes (animations)
Terminal=1
" > "$KDE_PANEL_DIR/samples/render_animations.desktop"

    echo "[Desktop Entry]
Type=Application
Exec=$INSTALL_DIR/share/$VER_DIR/scripts/portfolio.sh -o $SAMPLE_RESULTS_DIR/portfolio
Icon=exec
Name=render portfolio
Terminal=1
" > "$KDE_PANEL_DIR/samples/render_portfolio.desktop"

    echo "[Desktop Entry]
Type=Application
Exec=konqueror $SAMPLE_RESULTS_DIR/portfolio/index.html
Icon=html
Name=View portfolio
" > "$KDE_PANEL_DIR/samples/view_portfolio.desktop"

    echo "[Desktop Entry]
Type=Application
Exec=konqueror $SAMPLE_RESULTS_DIR/samples/animations.html
Icon=imagegallery
Name=Sample scene gallery (animations)
" > "$KDE_PANEL_DIR/samples/animations.desktop"

    echo "[Desktop Entry]
Type=Application
Exec=konqueror $SAMPLE_RESULTS_DIR/samples/stills.html
Icon=imagegallery
Name=Sample scene gallery (stills)
" > "$KDE_PANEL_DIR/samples/stills.desktop"

    echo "  modifying povray.conf..."
		add_readwrite_conf "$SAMPLE_RESULTS_DIR"

  else

    echo "Could not find required files, make sure POV-Ray $VERSION is correctly installed"
    echo ""

  fi

  # needs an extra invitation
	if [ -d "$KDEHOME/share/applnk-redhat" ] ; then 
    KDE_RH_PANEL_DIR="$KDEHOME/share/applnk-redhat/$VER_DIR"
		if [ -L "$KDE_RH_PANEL_DIR" ] ; then 
		  rm "$KDE_RH_PANEL_DIR"
		fi
		if [ -d "$KDE_RH_PANEL_DIR" ] ; then 
		  rm -rf "$KDE_RH_PANEL_DIR"
		fi
		ln -s "$KDE_PANEL_DIR" "$KDE_RH_PANEL_DIR"
		log_install "F" "$KDE_RH_PANEL_DIR"
  fi

  echo "Finished installing KDE panel entries"
  echo "------------------------------------------------------"
  echo ""

  return 1
}

# @@KDE_END@@

# ==================================================================
#    Add Library_Path lines to ini file when necessary
# ==================================================================

add_libpath_ini()
{
  DIR_NAME=$1
  INI_FILE=$2

  echo "  checking ini file $INI_FILE"

  if grep -E -i "^library_path=\"*$DIR_NAME/share/$VER_DIR" "$INI_FILE" > /dev/null ; then
    echo "    - file does not need to be modified"
  else
    echo "    - adding new Library_Path settings"

    cp -f "$INI_FILE" "$INI_FILE.bak"

    grep -B 1000 -E -i "^library_path" "$INI_FILE.bak" | sed '/^[Ll][Ii][Bb][Rr][Aa][Rr][Yy]_[Pp][Aa][Tt][Hh]=/,$ { d; }'  > "$INI_FILE" 2> /dev/null

    echo ";--- Lines added by POV-Ray $VERSION install script ---" >> "$INI_FILE"
    echo "Library_Path=\"$DIR_NAME/share/$VER_DIR\"" >> "$INI_FILE"
    echo "Library_Path=\"$DIR_NAME/share/$VER_DIR/ini\"" >> "$INI_FILE"
    echo "Library_Path=\"$DIR_NAME/share/$VER_DIR/include\"" >> "$INI_FILE"
    echo ";---------------------------------------------------" >> "$INI_FILE"
    echo "" >> "$INI_FILE"

    grep -A 1000 -E -i "^library_path" "$INI_FILE.bak" >> "$INI_FILE" 2> /dev/null

		rm -f "$INI_FILE.bak"

  fi
}

# ==================================================================
#    uninstall - delete all files listed in install log
#                try to restore backups made during install
# ==================================================================

uninstall()
{
  if [ -w "$DEFAULT_DIR/share/$VER_DIR/install.log" ] ; then
		LOG_NAME="$DEFAULT_DIR/share/$VER_DIR/install.log"
	else
    if [ -w "$HOME/.povray/$VERSION/install.log" ] ; then
			LOG_NAME="$HOME/.povray/$VERSION/install.log"
		else
      echo "------------------------------------------------------"
      echo "Could not find the install log"
      echo "make sure you run uninstall as the same user who" 
      echo "installed POV-Ray $VERSION."
      echo "------------------------------------------------------"
      return 0
		fi
  fi

  echo "  The uninstall function will remove POV-Ray $VERSION"
  echo "  from this computer.  Make sure you run it as the"
  echo "  same user who installed POV-Ray."
  echo ""
  echo "  Any changes made to the installed files (sample scenes,"
  echo "  include files etc. will get lost, the configuration"
  echo "  files will not be removed."
  echo ""
  read -p "Press CTRL-C to abort or any other key to start " -n 1

  echo ""
  echo "------------------------------------------------------"
  echo "uninstalling POV-Ray $VERSION..."

  echo "  removing created files..."

	FILE_LIST=`cat "$LOG_NAME" | sed "/^#/d" | sed "/^[^F]/d" | cut -d " " -f 2 | xargs`

  for FILE_NAME in $FILE_LIST ; do
    FILE_NAME2=`echo "$FILE_NAME" | sed "s?%? ?g"`
		echo "    - $FILE_NAME2"
		if [ -z "$1" ] ; then
		  rm -r -f "$FILE_NAME2"
    fi
	done

  echo "  restoring backups made during install..."

	FILE_LIST=`cat "$LOG_NAME" | sed "/^#/d" | sed "/^[^B]/d" | cut -d " " -f 2- | sed "s? ?#?g" | xargs`

  for FILE_NAME in $FILE_LIST ; do
    FILE_NAME2=`echo "$FILE_NAME" | sed "s?%? ?g"`
		FILE_NAME3=`echo "$FILE_NAME2" | sed "s?#? -> ?g"`
		FILE_NAME4=`echo "$FILE_NAME2" | sed "s?#? ?g"`
		FILE_NAME5=`echo "$FILE_NAME2" | cut -d "#" -f 1`
		echo "    - $FILE_NAME3"
		if [ -z "$1" ] ; then
		  cp -r -f $FILE_NAME4
			rm -r -f $FILE_NAME5 
    fi
	done

  if [ -z "$1" ] ; then
   rm -f "$LOG_NAME"
  fi

  echo "Finished uninstalling POV-Ray $VERSION"
  echo "------------------------------------------------------"
  echo ""

  return 1

}

# ==================================================================
#    run a test render to verify installation
# ==================================================================

test_render()
{
  DIR=`pwd`
	cd "$HOME"
	povray -iscenes/advanced/biscuit.pov -f +v +p -w320 -h240 +a0.3 $1
	cd "$DIR"

  return 1
}

# ==================================================================
#    update user configuration
# ==================================================================

user_install()
{
  if [ -z "$1" ] ; then
    INSTALL_DIR=`install_dir`
  else
    INSTALL_DIR="$1"
  fi

  POVINI=

  if [ -z "$INSTALL_DIR" ] ; then
    echo "------------------------------------------------------"
    echo "user configuration update NOT successful."
    echo "The directory where POV-Ray is installed could not be" 
    echo "determined.  Make sure POV-Ray is correctly installed"
    echo "on this computer"
    echo "------------------------------------------------------"
    return 0
  fi

  echo "------------------------------------------------------"
  echo "updating configuration for user '$USER'..."

  if [ -f "$HOME/.povray/$VERSION/povray.ini" ] ; then
    echo "  creating backup of old povray.ini file as povray.ini.old.`date +%Y-%m-%d`"
    cp "$HOME/.povray/$VERSION/povray.ini" "$HOME/.povray/$VERSION/povray.ini.old.`date +%Y-%m-%d`" 
    INI_MODE=1
  else
    test -d "$HOME/.povray" || mkdir "$HOME/.povray"
    test -d "$HOME/.povray/$VERSION" || mkdir "$HOME/.povray/$VERSION"

    if [ -f "$HOME/.povrayrc" ] ; then
      echo "  copying .povrayrc file from older version of POV-Ray"
      cp "$HOME/.povrayrc" "$HOME/.povray/$VERSION/povray.ini" 
      INI_MODE=2
    else
      if [ -f "$SYSCONFDIR/povray/$VERSION/povray.ini" ] ; then
        echo "  copying system povray.ini"
        cp "$SYSCONFDIR/povray/$VERSION/povray.ini" "$HOME/.povray/$VERSION/povray.ini" 
        INI_MODE=3          
      else
        if [ -f "$SYSCONFDIR/povray.ini" ] ; then
          echo "  copying old system povray.ini"
          cp "$SYSCONFDIR/povray.ini" "$HOME/.povray/$VERSION/povray.ini" 
          INI_MODE=4
        else
          if [ -f "./povray.ini" ] ; then
            echo "  installing new povray.ini"
            cat ./povray.ini | sed "s?Library_Path=$DEFAULT_DIR/share/$VER_DIR?Library_Path=$BASEDIR/share/$VER_DIR?g" > "$HOME/.povray/$VERSION/povray.ini"
            INI_MODE=5
          else
            # should not happen
            INI_MODE=0
            return 0
          fi
        fi
      fi
    fi
  fi

  echo "  updating povray.ini file..."

  add_libpath_ini "$INSTALL_DIR" "$HOME/.povray/$VERSION/povray.ini"

  echo "  updating povray.conf file..."

  if [ ! -f "$HOME/.povray/$VERSION/povray.conf" ] ; then
    if [ -f "$SYSCONFDIR/povray/$VERSION/povray.conf" ] ; then
      echo "  copying system povray.conf"
      test -d "$HOME/.povray" || mkdir "$HOME/.povray"
      test -d "$HOME/.povray/$VERSION" || mkdir "$HOME/.povray/$VERSION"
      cp "$SYSCONFDIR/povray/$VERSION/povray.conf" "$HOME/.povray/$VERSION/povray.conf"
      CONF_MODE=3
    else
      if [ -f "./povray.conf" ] ; then
        echo "  installing new povray.conf"
        test -d "$HOME/.povray" || mkdir "$HOME/.povray"
        test -d "$HOME/.povray/$VERSION" || mkdir "$HOME/.povray/$VERSION"
        cp ./povray.conf "$HOME/.povray/$VERSION/povray.conf"
        CONF_MODE=5
      else
        echo "  Warning: povray.conf template not found"
        echo "           i/o restrictions will be disabled"
        CONF_MODE=0
      fi
    fi
  else
		if echo "$INSTALL_DIR" | grep "$HOME"  > /dev/null ; then
			if [ -f "./povray.conf" ] ; then
				echo "  a user povray.conf file already exists."
				echo "  copying the default version as povray.conf.new"
				cp ./povray.conf "$HOME/.povray/$VERSION/povray.conf.new"
				CONF_MODE=6
			fi
		else
			echo "  a user povray.conf file already exists."
			add_read_conf "$INSTALL_DIR/share/$VER_DIR/scenes" 
			add_read_conf "$INSTALL_DIR/share/$VER_DIR/include"
			if [ -f "./povray.conf" ] ; then
				cp ./povray.conf "$HOME/.povray/$VERSION/povray.conf.new"
			fi
      CONF_MODE=7
    fi
  fi

  echo "Finished updating configuration"
  echo "------------------------------------------------------"
  echo ""

  case $INI_MODE in
    "1")
      echo "It seems you have had POV-Ray 3.6 installed previously."
      echo "The installation has updated the existing povray.ini file."
      echo ""
      echo "You should check if the new ini file:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.ini"
      echo ""
      echo "correctly reflects your configuration."
      ;;
    "2")
      echo "An older version of POV-Ray seems to have been previously"
      echo "installed on this system.  The installation has copied the"
      echo "old .povrayrc file and updated it for the new installation."
      echo ""
      echo "You should check if the new ini file:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.ini"
      echo ""
      echo "correctly reflects your configuration."
      ;;
    "3")
      echo "POV-Ray 3.6 seems to be installed system-wide.  The system"
      echo "povray.ini has been copied and updated."
      echo ""
      echo "You should check if the new ini file:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.ini"
      echo ""
      echo "correctly reflects your configuration."
      ;;
    "4")
      echo "A system-wide ini file from an older version of POV-Ray"
      echo "has been found and was copied and updated."
      echo ""
      echo "You should check if the new ini file:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.ini"
      echo ""
      echo "correctly reflects your configuration."
      ;;
    "5")
      echo "POV-Ray does not seem to have been previously installed"
      echo "on this system.  The installation created a default"
      echo "povray.ini at:"
      echo ""
      echo "  $BASEDIR/etc/povray/$VERSION/povray.ini"
      echo ""
      echo "which can be modified for individual requirements."
      ;;
  esac

  echo ""

  case $CONF_MODE in
    "3")
      echo "A user i/o restrictions configuation file has been copied"
      echo "from the system-wide version."
      echo ""
      echo "You should check if the new file:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.conf"
      echo ""
      echo "correctly reflects your configuration.  If you only want"
      echo "to use the system file you can also delete this."
      ;;
    "5")
      echo "A new i/o restrictions configuation file has been created:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.conf"
      echo ""
      echo "See the documentation for how to customize the settings."
      ;;
    "6")
      echo "An existing povray.conf file has been found and was left"
      echo "as it is.  The default file has been copied as:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.conf.new"
      echo ""
      echo "for reference."
      ;;
    "7")
      echo "An existing povray.conf file has been found and was modified"
      echo "for the new configuration.  The default file has been" 
      echo "copied as:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.conf.new"
      echo ""
      echo "for reference. You should check if the modified file:"
      echo ""
      echo "  ~/.povray/$VERSION/povray.conf"
      echo ""
      echo "correctly reflects your configuration."
      ;;
  esac

  echo ""
  echo "------------------------------------------------------"
  echo ""

  return 1
}

# ==================================================================
#    update system configuration
# ==================================================================

sys_install()
{
  # don't call without parameter for first time install
  if [ -z "$1" ] ; then
    INSTALL_DIR=`install_dir`
  else
    INSTALL_DIR="$1"
  fi

  POVINI=

  if [ -z "$INSTALL_DIR" ] ; then
    echo "------------------------------------------------------"
    echo "system configuration update NOT successful."
    echo "The directory where POV-Ray is installed could not be" 
    echo "determined.  Make sure POV-Ray is correctly installed"
    echo "on this computer"
    echo "------------------------------------------------------"
    return 0
  fi

  echo "------------------------------------------------------"
  echo "updating system level configuration..."

  if [ ! -d "$BASEDIR/etc/povray/$VERSION" ] ; then
    echo "  creating directory $BASEDIR/etc/povray/$VERSION..."
    mkdir -p "$BASEDIR/etc/povray/$VERSION"
  fi
  if [ ! -f "$BASEDIR/etc/povray/$VERSION/povray.ini" ] ; then
    if [ -f "$BASEDIR/etc/povray.ini" ] ; then
      echo "  copying povray.ini file from older version of POV-Ray"
      cp -f "$BASEDIR/etc/povray.ini" "$BASEDIR/etc/povray/$VERSION/povray.ini"
      INI_MODE=2
    else
      echo "  installing new main POV-Ray ini file..."
      cp -f ./povray.ini "$BASEDIR/etc/povray/$VERSION/"
      INI_MODE=5
    fi
  else
    echo "  creating backup of old povray.ini file as povray.ini.old.`date +%Y-%m-%d`"
    cp "$BASEDIR/etc/povray/$VERSION/povray.ini" "$BASEDIR/etc/povray/$VERSION/povray.ini.old.`date +%Y-%m-%d`" 
    INI_MODE=1
  fi

  echo "  updating main POV-Ray ini file..."
  add_libpath_ini "$BASEDIR" "$BASEDIR/etc/povray/$VERSION/povray.ini"

  chmod 644 "$BASEDIR/etc/povray/$VERSION/povray.ini"

  if [ ! -f "$BASEDIR/etc/povray/$VERSION/povray.conf" ] ; then
    echo "  installing POV-Ray configuration file..."
    cp -f ./povray.conf "$BASEDIR/etc/povray/$VERSION/povray.conf"
    chmod 644 "$BASEDIR/etc/povray/$VERSION/povray.conf"
    CONF_MODE=5
  else
    echo "  a system povray.conf file already exists."
    echo "  copying the default version as povray.conf.new"
    cp -f ./povray.conf "$BASEDIR/etc/povray/$VERSION/povray.conf.new"
    chmod 644 "$BASEDIR/etc/povray/$VERSION/povray.conf.new"
    CONF_MODE=6
    #echo "  creating backup from old POV-Ray configuration file as povray.conf.old"
    #mv -f "$BASEDIR/etc/povray/$VERSION/povray.conf" "$BASEDIR/etc/povray/$VERSION/povray.conf.old"
    #echo "  creating new $BASEDIR/etc/povray/$VERSION/povray.conf"
    #cp -f ./povray.conf "$BASEDIR/etc/povray/$VERSION/povray.conf"
    #chmod 644 "$BASEDIR/etc/povray/$VERSION/povray.conf"
  fi

  echo "Finished updating configuration"
  echo "------------------------------------------------------"
  echo ""

  case $INI_MODE in
    "1")
      echo "POV-Ray 3.6 has seemingly already been installed on this"
      echo "system before.  The installation has updated the existing"
      echo "povray.ini file."
      echo ""
      echo "You should check if the new ini file:"
      echo ""
      echo "  $BASEDIR/etc/povray/$VERSION/povray.ini"
      echo ""
      echo "correctly reflects your configuration."
      ;;
    "2")
      echo "A previous installation of POV-Ray has been found on this"
      echo "system.  The installation has copied the old povray.ini"
      echo "file and updated it for the new installation."
      echo ""
      echo "You should check if the new ini file:"
      echo ""
      echo "  $BASEDIR/etc/povray/$VERSION/povray.ini"
      echo ""
      echo "correctly reflects your configuration."
      ;;
    "5")
      echo "POV-Ray does not seem to have been previously installed"
      echo "on this system.  The installation created a default"
      echo "povray.ini at:"
      echo ""
      echo "  $BASEDIR/etc/povray/$VERSION/povray.ini"
      echo ""
      echo "which can be modified for individual requirements."
      ;;
  esac

  echo ""

  case $CONF_MODE in
    "5")
      echo "A new i/o restrictions configuation file has been created:"
      echo ""
      echo "  $BASEDIR/etc/povray/$VERSION/povray.conf"
      echo ""
      echo "See the documentation for how to customize the settings."
      ;;
    "6")
      echo "An existing povray.conf file has been found and was left"
      echo "as it is.  The default file has been copied as:"
      echo ""
      echo "  $BASEDIR/etc/povray/$VERSION/povray.conf.new"
      echo ""
      echo "for reference."
      ;;
  esac

  echo ""
  echo "------------------------------------------------------"
  echo ""
  echo "  The install script will now run a short test render"
  echo "  to check if POV-Ray is correctly configured."
  echo "  This test render will be without display since this"
  echo "  is will often not work correctly in superuser mode."
  echo ""
  echo "  Type 'R' to run the test"
  echo "  Type 'S' to skip it."
  echo ""
  read -p "Your choice ([R]/S): " -n 1 INPUT

  echo ""

  case $INPUT in
    "s" | "S")
      echo ""
      echo "  skipping test render..."
    ;;
    *)
      echo ""
      echo "  running test render..."
			test_render "-d"
    ;;
  esac

  echo ""
  echo "------------------------------------------------------"
  echo ""

  return 1
}

# ==================================================================


echo ""
echo "POV-Ray $VERSION installation"
echo "=========================="
echo ""


# ==================================================================
#    Check machine type
# ==================================================================

case $1 in
  --n* | -n*)
    echo "skipping architecture compatibility test."
    PARAMETER=$2
    ;;
  *)
    SYSNAME=`uname -s`
    ARCHNAME=`uname -m`

    MACHINE=

    case $ARCHNAME in
      i?86* | athlon* )
        case $SYSNAME in
          Linux | linux) MACHINE=Linux_x86 ;;
        esac
      ;;
    esac

    if [ -z "$MACHINE" ] ; then
      echo "This machine does not seem to be a Linux PC."
      echo "This version of POV-Ray only runs on x86 Linux machines."
      echo "You can obtain a version appropriate for your architecture"
      echo "on http://www.povray.org/"
      echo ""
      echo "If you want to force an installation you can use"
      echo ""
      echo "  install -no-arch-check"
      echo ""
      exit
    fi

    PARAMETER=$1
    ;;
esac


# ==================================================================
#    KDE icon installation
# ==================================================================

case $PARAMETER in
  kde* | KDE* | Kde* )

    kde_install

    exit
    ;;

  user* | USER* | User* )

    user_install

    exit
    ;;

  uninstall* | UNINSTALL* | Uninstall* )

    uninstall

    exit
    ;;

#  utest* | UTEST* | Utest* )
#
#    uninstall "TEST"
#
#    exit
#    ;;

  test* | TEST* | Test* )

    test_render "+d"

    exit
    ;;

esac

# ==================================================================
#    Obtain custom directory name when necessary
# ==================================================================

if [ ! -w "$DEFAULT_DIR" ] ; then
  echo "You need to have root privileges to install POV-Ray $VERSION"
  echo "in the default location ($DEFAULT_DIR)."
  echo ""
  echo "You can also install POV-Ray on User level at a custom location"
  echo "but this requires additional manual setup steps."
  echo ""
  echo "  Type 'R'  to login as root and install in $DEFAULT_DIR"
  echo "            (recommended method)."
  echo "  Type 'U'  to make a user level installation at a custom location."
  echo "  Type anything else to abort."
  echo ""
  read -p "Your choice (R/U, default: abort): " -n 1 INPUT

  echo ""

  case $INPUT in
    "r" | "R")                 # login as root
      echo ""
      echo "Enter root password to install in $DEFAULT_DIR:"
      su -c $0
      exit
    ;;
    "u" | "U")                 # ask for location and continue
      echo ""
      echo "Please specify the base directory you want to install in."
      echo "This directory has to be writable from this user account."
      echo "You will probably want to speciafy a location in your home"
      echo "directory (like $HOME/usr):"

      read -p "directory name: " BASEDIR

      echo ""

      BASEDIR=`echo "$BASEDIR" | sed "s?~?$HOME?g"`

      if [ ! -d "$BASEDIR" ] ; then
        mkdir -p "$BASEDIR"
      fi

      if [ ! -w "$BASEDIR" ] ; then

        echo ""
        echo "This directory is not writable, either login as root"
        echo "or specify a different location."
        echo ""
        echo "Installation aborted!"
        exit
      fi
    ;;
    *)                         # abort
      echo ""
      echo "Installation aborted!"
      exit
    ;;
  esac
else
  echo "installing POV-Ray in default location ($DEFAULT_DIR)"
  BASEDIR=$DEFAULT_DIR
fi

# ==================================================================
#    Copy files
# ==================================================================

log_install

echo "------------------------------------------------------"
echo "Copying files..."

if [ ! -d "$BASEDIR" ] ; then
  echo "  creating directory $BASEDIR..."
  mkdir "$BASEDIR"
fi
if [ ! -d "$BASEDIR/share" ] ; then
  echo "  creating directory $BASEDIR/share..."
  mkdir "$BASEDIR/share"
fi

echo "  creating supplementary files directory ($BASEDIR/share/$VER_DIR)..."

if [ -d "$BASEDIR/share/$VER_DIR" ] ; then
  echo "  Directory $BASEDIR/share/$VER_DIR already exists."
  echo "  Type 'B' to make a backup"
  echo "  Type 'W' to overwrite current content"
  echo ""
  read -p "Your choice ([B]/W): " -n 1 INPUT

  echo ""

  case $INPUT in
    "w" | "W")
      echo ""
      echo "  clearing $BASEDIR/share/$VER_DIR"
      rm -rf "$BASEDIR/share/$VER_DIR"
      mkdir "$BASEDIR/share/$VER_DIR"

			log_install "F" "$BASEDIR/share/$VER_DIR"
    ;;
    *)
      echo ""
      echo "  creating backup of $BASEDIR/share/$VER_DIR"
      echo "  as $BASEDIR/share/$VER_DIR.bak"
      rm -rf "$BASEDIR/share/$VER_DIR.bak"
      mv -f "$BASEDIR/share/$VER_DIR" "$BASEDIR/share/$VER_DIR.bak"
      mkdir "$BASEDIR/share/$VER_DIR"

	    log_install "B" "$BASEDIR/share/$VER_DIR.bak" "$BASEDIR/share/$VER_DIR"
    ;;
  esac

else
  mkdir "$BASEDIR/share/$VER_DIR"

  log_install "F" "$BASEDIR/share/$VER_DIR"
fi

echo "  copying include files..."
cp -r ./include "$BASEDIR/share/$VER_DIR/"
echo "  copying sample scenes..."
cp -r ./scenes "$BASEDIR/share/$VER_DIR/"
echo "  copying ini files..."
cp -r ./ini "$BASEDIR/share/$VER_DIR/"
echo "  copying script files..."
cp -r ./scripts "$BASEDIR/share/$VER_DIR/"
echo "  copying icon files..."
cp -r ./icons "$BASEDIR/share/$VER_DIR/"

if [ ! -d "$BASEDIR/man" ] ; then
  echo "  creating directory $BASEDIR/man..."
  mkdir "$BASEDIR/man"
fi
if [ ! -d "$BASEDIR/man/man1" ] ; then
  echo "  creating directory $BASEDIR/man/man1..."
  mkdir "$BASEDIR/man/man1"
fi

echo "  copying POV-Ray man page..."
cp -f ./povray.1 "$BASEDIR/man/man1/"
chmod 644 "$BASEDIR/man/man1/povray.1"

log_install "F" "$BASEDIR/man/man1/povray.1"

if [ ! -d "$BASEDIR/bin" ] ; then
  echo "  creating directory $BASEDIR/bin..."
  mkdir "$BASEDIR/bin"
fi

echo "  copying POV-Ray executable..."
if [ -f "$BASEDIR/bin/povray" ] ; then
  echo "    - creating backup from old POV-Ray executable as povray.old.`date +%Y-%m-%d`"
  mv -f "$BASEDIR/bin/povray" "$BASEDIR/bin/povray.old.`date +%Y-%m-%d`"
  log_install "B" "$BASEDIR/bin/povray.old.`date +%Y-%m-%d`" "$BASEDIR/bin/povray"
else
  log_install "F" "$BASEDIR/bin/povray"
fi
cp -f ./povray "$BASEDIR/bin/"
chmod 755 "$BASEDIR/bin/povray"


if [ ! -d "$BASEDIR/share/doc" ] ; then
  echo "  creating directory $BASEDIR/share/doc..."
  mkdir "$BASEDIR/share/doc"
fi
if [ ! -d "$BASEDIR/share/doc/$VER_DIR" ] ; then
  echo "  creating directory $BASEDIR/share/doc/$VER_DIR..."
  mkdir "$BASEDIR/share/doc/$VER_DIR"
  log_install "F" "$BASEDIR/share/doc/$VER_DIR"
else
  echo ""
  echo "  creating backup of $BASEDIR/share/doc/$VER_DIR"
  echo "  as $BASEDIR/share/doc/$VER_DIR.bak"
  rm -rf "$BASEDIR/share/doc/$VER_DIR.bak"
  mv -f "$BASEDIR/share/doc/$VER_DIR" "$BASEDIR/share/doc/$VER_DIR.bak"
  mkdir "$BASEDIR/share/doc/$VER_DIR"
  log_install "B" "$BASEDIR/share/doc/$VER_DIR.bak" "$BASEDIR/share/doc/$VER_DIR"
fi
echo "  copying POV-Ray documentation..."
cp -r -f ./doc/* "$BASEDIR/share/doc/$VER_DIR/"

echo "Finished copying files"

# ==================================================================
#    Setup configuration files
# ==================================================================

if [ "$BASEDIR" = "$DEFAULT_DIR" ]; then

  # --- system based installation ---

  INI_MODE=
  CONF_MODE=

  sys_install "$BASEDIR"

  echo "Finished installing POV-Ray $VERSION"
  echo "------------------------------------------------------"
  echo ""
  echo "This install script can also add some useful entries to"
  echo "the KDE panel if KDE is installed.  Running:"
  echo ""
  echo "  install kde"
  echo ""
  echo "as a user will add entries for this user."
  echo ""

else

  # --- user level installation ---

  INI_MODE=
  CONF_MODE=

  user_install "$BASEDIR"

  echo "Finished installing POV-Ray $VERSION"
  echo "The POV-Ray files have been copied to $BASEDIR."
  echo "------------------------------------------------------"
  echo ""

  test -z "$KDEHOME" && KDEHOME="$HOME/.kde"
  if [ -d "$KDEHOME" ] ; then
    kde_install "$BASEDIR"
  fi

  echo "For completing the installation of POV-Ray you will have"
  echo "to set your PATH and MANPATH environment variables to"
  echo "point to your custom installation location."
  echo ""

fi