I have a node.js project and I am using I18next to localize it, with the gettext http://i18next.com/node/pages/doc_init.html#gettext backend.
My template engine i am using with this project is https://github.com/bminer/node-blade which is similar to jade.
Then I use the https://www.npmjs.org/package/i18next-parser library with i18next -r -o ../tmp -l en command to extract all the msgid's and create a dev.json file.
Once this is done, i use i18next-conv -l en -s ../dev.json -t dev.po to convert this to a gettext format.
From this I would create a fr.po file and then get this translated to french, as an example.
So far this process works fine, the question is, how best to keep all the msgid's should for example, I need to add new strings to the catalog and then merge these into the fr.po file without loosing any strings which have already been translated?
any advice much appreciated.