Translate vala project (including appdata.xml and .desktop files) with Gettext and bash script

translate.sh

#!/bin/bash
# Script for easy developing by Carlos Suárez (bitseater@gmail.com) - 2018
# Define variables
PACKAGE="myapplication"
TEMPLATE=po/$PACKAGE.pot
FILES=po/*.po
# Search strings to translate and update po files (mark with _ translatable fields in appdata file)
# p.ex.: <_li>My Application do something</_li><_li>Also do something more</_li>
# Don't use _ to <name> and <summary>.
MYVAR=$(find . -type f -name *vala -or -name *appdata.xml.in -or -name *desktop.in)
xgettext --keyword=_ --escape --sort-output -o $TEMPLATE $MYVAR
for f in $FILES
  do
	  msgmerge -v $f $TEMPLATE --update
	  echo $f "updated."
  done