Feedback:

• Nice idea to reuse unicode-cldr I didn't know this existed and it looks useful! it's a really great added value to translators that they don't have to translate 250+ country names! 👍
• Maybe the new command could be moved in translations:generate-intl-data instead of intl:generate
• Looks good to me

I'll rename the console command later. Guess we should also be able to use other parts of unicode-cldr. It also includes names of months & weekdays as well as time formats. I'll have a look at that within the next days

Should be finished so far. I'll add some more intl data like continents, day and month names, etc in another PR to keep them small.

Funnily enough a UI test "broke" because Russian Federation became Russia :) (it's fine)

AllTests fails because of what seems to be no disk space left :/ Is it one of the random failures or something new?

Except the AllTests looks good to merge

By they way there is no way we download directly the original package (unicode-cldr/cldr-localenames-full) using a package manager? That would avoid having to update the translations if this could be handled by another system like Composer for example. And it would avoid to commit several megabytes in the repo.

They have npm or Bower integration, but I'm not sure it's a good idea for us (PHP project) to use this. But it seems there are other packages on Packagist that contain the same data.

The thing is: does it make sense to commit such data in Piwik's repository. The idea with core/Intl/Resources was to make it easier to eventually replace it with a 3rd party lib, because why would we maintain that ourselves?

For sure we could use the full dataset of unicode-cldr/cldr-localenames-full. But it contains a lot of languages and Piwik would only use a small part of it.
That would mean we include a big bunch of data without any use.
Additionally unicode-cldr/cldr-localenames-full only contains the language and country names, for month and day names we would also need unicode-cldr/cldr-dates-full

Small Note: We would only need to run the console command to update the intl data in two cases:

• a new language is added to piwik (which happens not so often)
• new unicode-cldr/cldr-localenames-full release (which happens twice a year, according to their release plan)

Ah OK you only fetch what we need, then 👍