#!/bin/sh

# a small script to recursively create thumbnails
# (c) 1999-2000 by Yves Lafon / W3C - ylafon@w3.org
# last change: Mon Jun  5 18:33:52 MET DST 2000 (non recursive mode)
# last change Thu Jan  4 00:29:53 MET 2001 added -png
# $Id: genethumb,v 1.1 2001/02/22 13:54:04 ylafon Exp $


dirn=".small"
recu=1
use_png=0
t_ext="gif"
if [ $# -gt 0 ]; then
	for arg do
		case "$1" in
			"-d" ) shift; dirn=$1; shift;;
			"-l" ) shift; recu=0;;
			"-png" ) shift; use_png=1; t_ext="png";;
			"-h" )
				echo "Usage: `basename $0` [-l] [-png] [-d <dirname>]"
				exit 1 ;;
			"*" )
				break
		esac
	done
fi

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

for i in *; do
	if [ -d $i ]; then
	        if [ $recu -eq 1 ]; then
		    if [ ! "$i" = "$dirn" ]; then
			echo Generating thumbnails for directory $i
			(cd $i && $0 -d $dirn $*)
			echo Directory $i processed!
		    fi
		fi
	elif [ -f $i ]; then
		echo "Working on $i"
		file_type=`file "$i" | awk '{print $2}'`
		case "$file_type" in 
			"JPEG" | "GIF" )
			;;
			* )
			anytopnm "$i" 2> /dev/null > /dev/null
			if [ $? = 1 ]; then
				ext=`echo "$i" | sed 's/.*\.//g' | tr '[A-Z]' '[a-z]'`
				case "$ext" in
				    "jpg" | "jpeg" | "gif" )
				    ;;
				    *)
					continue;
				    ;;
				esac
			fi
		esac
		ext=`echo "$i" | sed 's/.*\.//g'`
		a=`basename $i $ext`
		b=`dirname $i`
		echo Creating $b/$dirn/${a}${t_ext}
		if [ $use_png -eq 0 ]; then
			anytothumb $* $i > $b/$dirn/${a}${t_ext}
		else
			anytothumb -png $* $i > $b/$dirn/${a}${t_ext}
		fi
		if [ $? = 1 ]; then
			echo error while processing $i
			rm $b/$dirn/${a}${t_ext}
		fi
	fi
done
rmdir $dirn 2> /dev/null > /dev/null