epriestley 02c3200867 Respond more gracefully when a git push deletes a nonexistent ref ... Summary: Fixes T5534. If you `git push origin :refs/tags/doesnotexist` (for some non-existing tag), we get a change where both the old and new refs are empty. We incorrectly call this an "add", because the old ref is empty. Instead, call this a "delete", but skip the logic which would normally mark it dangerous. (Possibly we should just reject these outright, but Git allows them, so stick with that for now.) Test Plan: Pushed nonexistent refs: ``` $ git push origin :refs/tags/doesnotexist remote: warning: Allowing deletion of corrupt ref. To ssh://dweller@localhost/diffusion/POEMS/ - [deleted] doesnotexist $ ``` Reviewers: btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T5534 Differential Revision: https://secure.phabricator.com/D9800		2014-07-10 10:17:17 -07:00
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DiffusionCommitHookEngine.php	Respond more gracefully when a git push deletes a nonexistent ref	2014-07-10 10:17:17 -07:00