#!/bin/bash
# Update the translation files with strings used in QGIS
# 1. create a clean Qt .pro file for the project
# 2. run lupdate using the .pro file from step 1
# 3. remove the .pro
# Note the .pro file must NOT be named qgis.pro as this
# name is reserved for the Windows qmake project file
# $Id$

set -e

cleanup() {
	if [ -f i18n/qt_ts.tar ]; then
		echo Restoring Qt translations
		tar -xf i18n/qt_ts.tar
	fi
	if [ -f i18n/qgis_ts.tar ]; then
		echo Restoring excluded translations
		tar -xf i18n/qgis_ts.tar
	fi

	echo Removing temporary files
	perl -i.bak -ne 'print unless /^\s+<location.*python-i18n\.cpp.*$/;' i18n/qgis_*.ts
	for i in \
		python/python-i18n.{ts,cpp} \
		python/plugins/*/python-i18n.{ts,cpp} \
		i18n/qgis_*.ts.bak \
		src/plugins/grass/grasslabels-i18n.cpp \
		i18n/qt_ts.tar \
		i18n/qgis_ts.tar \
		qgis_ts.pro
	do
		[ -f "$i" ] && rm "$i"
	done

	for i in \
		src/plugins/plugin_template/plugingui.cpp \
		src/plugins/plugin_template/plugin.cpp
	do
		[ -f "$i.save" ] && mv "$i.save" "$i"
	done
}

trap cleanup EXIT

PATH=$QTDIR/bin:$PATH

#first tar the qt_xx.ts files in i18n folder such that lupdate does not 
#merge the qgis strings to them
echo Saving Qt translations
tar --remove-files -cf i18n/qt_ts.tar i18n/qt_*.ts
exclude=
opts=
for i in "$@"; do
  if [ -f "i18n/qgis_$i.ts" ]; then
    exclude="$exclude --exclude i18n/qgis_$i.ts"
  else
    opts=" $i"
  fi
done
if [ -n "$exclude" ]; then
  echo Saving excluded translations
  tar --remove-files -cf i18n/qgis_ts.tar i18n/qgis_*.ts$exclude
fi
echo Updating python translations
cd python
pylupdate4 utils.py -ts python-i18n.ts
perl ../scripts/ts2cpp.pl python-i18n.ts python-i18n.cpp
rm python-i18n.ts
cd ..
for i in python/plugins/*/CMakeLists.txt; do
	cd ${i%/*}
	pylupdate4 $(find . -name "*.py" -o -name "*.ui") -ts python-i18n.ts
	perl ../../../scripts/ts2cpp.pl python-i18n.ts python-i18n.cpp
	rm python-i18n.ts
	cd ../../..
done
echo Updating GRASS module translations
perl scripts/qgm2cpp.pl >src/plugins/grass/grasslabels-i18n.cpp
mv src/plugins/plugin_template/plugingui.cpp src/plugins/plugin_template/plugingui.cpp.save
echo Creating qmake project file
for i in \
	src/plugins/plugin_template/plugingui.cpp \
	src/plugins/plugin_template/plugin.cpp
do
	[ -f "$i" ] && mv "$i" "$i.save"
done
qmake -project -o qgis_ts.pro -nopwd src python i18n
echo Updating translations
lupdate$opts -verbose qgis_ts.pro