Launchpad itself

Merge ~pappacena/launchpad:git-repo-async-privacy-virtualrefs into launchpad:master

Proposed by Thiago F. Pappacena on 2020-10-29

Status:	Needs review
Proposed branch:	~pappacena/launchpad:git-repo-async-privacy-virtualrefs
Merge into:	launchpad:master
Prerequisite:	~pappacena/launchpad:git-repo-async-provacy-garbo
Diff against target:	1053 lines (+547/-36) 14 files modified database/schema/security.cfg (+1/-1) lib/lp/code/browser/tests/test_branchmergeproposal.py (+1/-1) lib/lp/code/interfaces/branchmergeproposal.py (+45/-1) lib/lp/code/interfaces/githosting.py (+8/-0) lib/lp/code/interfaces/gitrepository.py (+12/-1) lib/lp/code/model/branchmergeproposal.py (+98/-0) lib/lp/code/model/githosting.py (+29/-4) lib/lp/code/model/gitjob.py (+26/-1) lib/lp/code/model/gitrepository.py (+5/-2) lib/lp/code/model/tests/test_branchmergeproposal.py (+234/-0) lib/lp/code/model/tests/test_githosting.py (+2/-3) lib/lp/code/model/tests/test_gitrepository.py (+75/-20) lib/lp/code/subscribers/branchmergeproposal.py (+8/-2) lib/lp/code/tests/helpers.py (+3/-0)
Related bugs:	Link a bug report

Reviewer	Review Type	Date Requested	Status
Launchpad code reviewers		2020-10-29	Pending
Review via email: mp+393075@code.qastaging.launchpad.net

This proposal supersedes a proposal from 2020-10-29.

Commit message

Doing virtual refs synchronization when running git repository privacy change background task

Description of the change

This branch carries code from https://code.launchpad.net/~pappacena/launchpad/+git/launchpad/+merge/390581, but it does a big chunch of refactoring of the code contained there. Mostly, the bulk operations got encapsulated in the GitHostingClient, so we would have a single point of change once Turnip will be able to run the copy/delete refs operations in bulk (instead of doing a bunch of requests).

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