Gettext : How to update po and pot files after the source is modified
I've got a python project with internationalized strings. I've modified the source codes and the lines of the strings are changed, i.e. in pot and po files lines of he strings are not pointing to correct lines.
So how to update the po and pot files to new string locations in files.
Answer
You could have a look to this script to update your po files with new code. It use xgettext and msgmerge.
echo '' > messages.po # xgettext needs that file, and we need it empty
find . -type f -iname "*.py" | xgettext -j -f - # this modifies messages.po
msgmerge -N existing.po messages.po > new.po
mv new.po existing.po
rm messages.po