Summary:
Adds file attachment deletion logics:
- PhabricatorFile: delete the attachment if file is deleted
- destruction engine extension: delete attachment if object is deleted
- SQL patch: delete existing leftover attachments from deleted files
To apply the cleanup, as usual, run:
./bin/storage upgrade
This cleanup may take some time, proportionally to the size of these tables:
phabricator_file.file
phabricator_file.file_attachment
Just as an indication: the storage upgrade, in a Phorge with `file` count 1.3M rows and `file_attachment` consisting in 9K rows, it may delete 170K rows in less than 1 second on average hardware.
Closes T15110
Test Plan:
Apply the patch, run `./bin/storage/upgrade`:
- no "Unknown Object" in any "Referenced Files" curtain of any object.
Have phd daemon running.
Upload file, attach the file to a task, delete the file from the web interface:
- no "Unknown Object" in "Referenced Files" curtain of that task.
- the query `SELECT * FROM file_attachment WHERE filePHID = '<file phid>'` returns empty result
Upload file, attach the file to a task, delete the task from the `./bin/remove destroy` workflow:
- the query `SELECT * FROM file_attachment WHERE objectPHID = '<task phid>'` returns empty result
Reviewers: O1 Blessed Committers, avivey, valerio.bozzolan
Reviewed By: O1 Blessed Committers, avivey, valerio.bozzolan
Subscribers: Ekubischta, speck, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Tags: #files
Maniphest Tasks: T15110
Differential Revision: https://we.phorge.it/D25051
