#!/bin/bash
#
# Copyright 2007, Donatas Glodenis <dgvirtual@akl.lt>
#
# #
# # This script is free software; you can redistribute it and/or modify
# # it under the terms of the GNU General Public License 2 as published by
# # the Free Software Foundation.
#
# # This script 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 script; if not, write to the Free Software
# # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
# 
# ths-potopot.sh - converts po files to pot (template) files (basically 
# strips all the translation).

source `dirname $0`/ths-variables

if [ ! $MSGMERGE ]; then
	echo -e $RED"This program needs the msgmerge utility."$ENDCOLOR
	exit 1
fi

if [ ! $MSGFILTER ]; then
	echo -e $RED"This program needs the msgfilter utility."$ENDCOLOR
	exit 1
fi

if [ $# -ne 1 ]; then
	echo "Usage: `basename $0` </directory/with/pofiles/>"
	exit 1
fi

pofiles=$1

echo "This script will create a directory of pot files called "
echo "./templates/ inside the directory of the po files."
echo "Starting in three seconds..."
sleep 3

echo "Creating directory ${pofiles}/templates/ ... "

mkdir $pofiles/templates
sleep 1

for file in `cd $pofiles; find . -name "*.po"`
do
	echo -n "Working on ${file}. Unwrapping..."
	# unwrap messages for cleaner operation
	$MSGMERGE --no-wrap  ${pofiles}/$file $pofiles/$file -o $pofiles/$file
	# remove the translations and creating pot files
	echo "Cleaning up translations..."	
	$MSGFILTER --input=$pofiles/$file --output-file=$pofiles/templates/${file}t --keep-header sed --expression='s/.*//' ; echo "done."
	# applying some more filters via sed: remove remaining \n signs (sed 1 and 2), removing the fuzzy headers (3), removing the empty "" (4), removing the extra empty lines (5)
	echo "Applying additional filter..."
	cat $pofiles/templates/${file}t | sed -e 's/msgstr \"\\n\"/msgstr \"\"/' | \
	sed -e 's/\"\\n\"/\"\"/' | \
	sed -e 's/#, fuzzy//' | \
	sed -e 's/^""//' | \
	sed '/./,/^$/!d' > $pofiles/templates/${file}t ; echo "done."
	echo "File ${file}t in directory templates/ created."
	echo 
done