Remove Repository#lookup and unreachable rugged code
What does this MR do?
Removes the Gitlab::Git::Repository#lookup method, which is a thin wrapper around Rugged. Anything that uses this method relies directly on Rugged, which is wrong because we are removing Rugged from all non-test code in gitlab-ce/ee.
This change also removes some rugged-based methods that are no longer reachable from gitlab-ce/ee.
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Why was this MR needed?
Screenshots (if relevant)
Does this MR meet the acceptance criteria?
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Changelog entry added, if necessary -
Documentation created/updated -
API support added -
Tests added for this feature/bug - Conform by the code review guidelines
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Has been reviewed by a UX Designer -
Has been reviewed by a Frontend maintainer -
Has been reviewed by a Backend maintainer -
Has been reviewed by a Database specialist
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Conform by the merge request performance guides -
Conform by the style guides -
Conform by the database guides -
If you have multiple commits, please combine them into a few logically organized commits by squashing them -
Internationalization required/considered -
End-to-end tests pass ( package-and-qa
manual pipeline job)
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Edited by Jacob Vosmaer