As reported by @Samwalton9 at T115119#4957283:
This is now live at https://stream.wikimedia.org/v2/stream/page-links-change
From some initial testing it looks to be working well for links added & removed, including page creations. However, it doesn't catch links removed by being on a page that gets deleted. Undeleting the page counts as a page creation and tracks the link addition(s).
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Resolved | • Samwalton9-WMF | T199189 [2.3] External links/references event stream | |||
| Resolved | • bmansurov | T115119 Create a feed or log of changed links on Wikimedia projects | |||
| Resolved | daniel | T216249 page-links-change stream doesn't capture links on page deletion |
Indeed, haven't thought about that. On page deletion no LinksUpdate is scheduled, LinksDeletionUpdate is used instead which doesn't call a hook we use to construct the event.
Also, the hook we use for page deletion, ArticleDeleteComplete is run after the links are already deleted from the links tables. I guess we could listen to ArticleDelete hook, and grab the existing links with $wikiPage->getTitle()->getLinksFrom() for local links and either create a convenience method in the Title for external links or supply additional parameters to grab them.
Undeleting the page counts as a page creation and tracks the link addition(s).
I cannot reproduce this part. Undeleting the page doesn't result in link additions for me. Can you please double check if that's still true?
@Pchelolo thanks for looking into this. I want to see if I can share and reuse what we have already.
@bmansurov Strange. I just reproduced it at User:Samwalton9/sandbox10 (the most recent deletion logged at https://en.wikipedia.org/wiki/Special:Log?type=delete&user=&page=User%3ASamwalton9%2Fsandbox10&wpdate=&tagfilter=&subtype=).
Change 491532 had a related patch set uploaded (by Bmansurov; owner: Bmansurov):
[mediawiki/core@master] WIP: ArticleDeleteComplete: pass along links
Change 491856 had a related patch set uploaded (by Bmansurov; owner: Bmansurov):
[mediawiki/extensions/EventBus@master] page-links-change: emit link deletions on page delete
Change 494557 had a related patch set uploaded (by Daniel Kinzler; owner: Daniel Kinzler):
[mediawiki/core@master] Derive LinksDeletionUpdate from LinksUpdate
Change 494557 had a related patch set uploaded (by Mobrovac; owner: Daniel Kinzler):
[mediawiki/core@master] Make LinksDeletionUpdate a subclass of LinksUpdate
Change 494557 merged by jenkins-bot:
[mediawiki/core@master] Make LinksDeletionUpdate a subclass of LinksUpdate
With Gerrit 494557 landing in master (ETA for production: 2019-04-04), we should be done here. If there are any issues, please reopen the task.
Change 491532 abandoned by Bmansurov:
ArticleDeleteComplete: pass along links
Reason:
Not needed. See I665320e27da8edc2867b47d181cc0f324e75d102
Change 491856 abandoned by Bmansurov:
page-links-change: emit link deletions on page delete
Reason:
Not needed as I665320e27da8edc2867b47d181cc0f324e75d102 fires the hook we're listening to.