#!/bin/bash

#

# groupByFormats.sh -- This function provides post-rendering action

# used to group images by format.  This function create a directory

# for for the image format and move the image file inside it.  For

# example: if the current file is a png file, it is moved inside a png

# directory; if the current file is a jpg file, it is stored inside a

# jpg directory, and so on.

#

# For this function to work correctly, you need to specify which formats you

# want to group. This is done in the post-rendering ACTIONS array inside the

# appropriate render.conf.sh script. 

#

# For example, the following two lines will create a jpg, ppm, xpm, and tif

# file for each png file and will group them all by its format, inside

# directories named as the file format they contain inside (i.e. png, jpg,

# ppm, xpm, tif). 

#     

#     ACTIONS[0]="renderFormats: jpg, ppm, xpm, tif"

#     ACTIONS[1]="groupByFormat: png, jpg, ppm, xpm, tif"

#

# groupByFormat function is generally used with renderFormats function. Both

# definitions should match the type of formats you want to have rendered and

# grouped. You don't need to specify the png format in renderFormats'

# definition, but in groupByFormats's definition it should be specified.

# Otherwise png files will not be grouped inside a png directory.

#

# Copyright (C) 2009-2010 Alain Reguera Delgado

# 

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

# 

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307

# USA.

# 

# ----------------------------------------------------------------------

# $Id: render_doIdentityImageGroupBy.sh 56 2010-09-17 11:07:26Z al $

# ----------------------------------------------------------------------

function groupByFormat {

   # Get absolute path of PNG image file.

   local FILE="$1"

   # Get image formats.

   local FORMATS=$(echo "$2" | cut -d: -f2-)

   # Sanitize image formats.

   FORMATS=$(echo "${FORMATS}" \

      | sed -r 's!^ *!!g' \

      | sed -r 's!( |:|,|;) *! !g' \

      | sed -r 's! *$!!g')

   # Check image formats.

   if [ "$FORMATS" != "" ];then

      # Loop through image formats and do group by format.

      for FORMAT in $FORMATS;do

         # Redifine file path to add format directory

         local SOURCE=${FILE}.${FORMAT}

         local TARGET=$(dirname $FILE)/${FORMAT}

         # Check target directory existence.

         if [ ! -d $TARGET ];then

            mkdir $TARGET

         fi

         # Redifine file path to add file and its format.

         TARGET=${TARGET}/$(basename $FILE).${FORMAT}

         # Move file into its format location.

         echo "Moved to: $TARGET"

         mv ${SOURCE} ${TARGET}

      done

   fi

}