Add a CLI command to validate the catalog on CI

Is your feature request related to a problem? Please describe. One of the common problem with localization process is that as a developer you have to not forgot to run lingui extract before committing new/edited/removed string.

Describe proposed solution Add a CLI command like lingui check-catalog that verify that all the key of the application are present in all catalog. It will return an errored exit code if some string are not referenced in the catalogs.

A verbose mode could also print the location of the missing messages.

I work on it if your ok with the idea

[marlonjan]

Hi there, I’ve also observed the issue that @armandabric described, forgetting to run lingui extract and committing the changes seems to be quite common. As a result, changes in .po files often end up in later commits or even later pull requests, in which case it tends to make the code review process slightly confusing.

I found the following command quite useful to check that there are no uncommitted changes after running lingui extract:

yarn lingui extract && if [[ -n $(git status --porcelain | grep "messages.po") ]]; then echo "Error: Uncommitted changes in some of the .po files" && exit 1; fi

However, this can only work when it’s executed in a git repository, which is not always the case in a CI setting. Something like lingui extract --check or --dry-run with appropriate exit codes would be very useful 👍

[armandabric]

I will propose you something in the next weeks