This should only be done after T203899: Undeploy EUCopyright related extensions and delete fixcopyrightwiki.
To-do list
- On-wiki documentation
- Archive documentation on mediawiki.org (https://www.mediawiki.org/wiki/Extension:EUCopyrightCampaign): replace page contents with {{TNT|Archived extension|last revision id before archiving|reason=archive reasons, per [[phab:T######]]}}; include a link to this task in the reason parameter.
- If documentation page was translatable, remove <translate>, visit Special:PageTranslation, and click "remove from translation" (if you don't have the translation administrator right, ask a user who does).
- Archive Wikidata item associated with documentation page (https://www.wikidata.org/wiki/Q56529192) (remove nearly all statements, except instance of (P31) = MediaWiki extension (Q6805426), which should add a qualifier end time (P582) = the YYYY-MM-DD date that you decided to archive extension, generally per edit history, change English (and other languages if possible) description to "archived MediaWiki extension" (and its translation)).
- Phabricator
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Archive Phabricator project <#ProjectX> for the extension. - Mark all Phabricator tasks for the extension either Declined or Invalid.
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Edit Phabricator project <#ProjectX> description for the extension with a link to this ticket.
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- Translatewiki.net/translations
- Remove from translatewiki.net (groups/MediaWiki/mediawiki-extensions.txt) (add translatewiki.net project as a tag for this task).
- Configuration/tests/integrations/etc.
- Remove from mediawiki/extensions (along with in .gitmodules).
- Remove tests in [[ https://gerrit.wikimedia.org/g/integration/config | integration/config ]] (zuul/layout.yaml).
- Remove manifest/other references from mediawiki/vagrant if they exist.
- Remove from https://doc.wikimedia.org/cover-extensions/ if present (requires Continuous-Integration-Infrastructure shell user to delete directly from the server).
- Repositories
- Empty repository and add an ARCHIVED file.
- Archive the diffusion repository for the extension: (provide the Diffusion repository callsign or URL).
- Mark the repository read-only in Gerrit: (provide Gerrit Repository URL).
- Delete the GitHub mirror: (provide GitHub repository URL).