Prio Notes (from parent task):

• Affects end users / production
• Does not affect development efforts
• Does not affect onboarding
• Affects additional stakeholders (WMF web team)

In T331760#8761970, @Lucas_Werkmeister_WMDE wrote:

Adding a separate RL module for just the local site brings some cost with it, but if it lets us mostly skip loading the much heavier module of all sites’ information, it could still be worth it. (Alternatively, if we think this information is needed frequently enough, we could perhaps add it to the parser output of all pages, without needing to load a RL module at all.)

“[Adding] it to the parser output of all pages” is actually what @Michael first did in patch sets 1–3 of Link to the Site subgroup in the language selector (I’d forgotten in the meantime but now looked through the review comments again); one concern was that the new variable wouldn’t be available in old / cached parser output for a while. If we decide to add it to the parser output again, I suppose we can make the JS code check for the config variable first, and fall back to loading mw.config.values.wbSiteDetails after all if the config variable doesn’t exist yet. But I’d also argued at the time that “it feels strange to me to add using addJsConfigVars(), when most of the config variables we add that way are more or less specific to the current page view, and page-independent data like wbRepo added via ResourceLoader modules instead”, so maybe a new ResourceLoader module is better after all. (mw.config.values.wbCurrentSiteDetails? 🚲🏠)

Task Breakdown Notes

• This occurs only in Vector 2022
• A new resource loader module is needed

Potential Plan of Action

• Create a new resource loader module on Wikibase client that returns site detail for the current site by creating a new class and registering it on extension-client.json (Further information about resource loaders: https://www.mediawiki.org/wiki/ResourceLoader/Developing_with_ResourceLoader)
• Use the new resource loader module instead of using old wbSiteDetails in vector-2022.js file

Change 911841 had a related patch set uploaded (by Guergana Tzatchkova; author: Guergana Tzatchkova):

[mediawiki/extensions/Wikibase@master] [WiP] Create new CurrentSiteModule

https://gerrit.wikimedia.org/r/911841

Change 911841 merged by jenkins-bot:

[mediawiki/extensions/Wikibase@master] Create new CurrentSiteModule

https://gerrit.wikimedia.org/r/911841