Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

This commit alters views for the following models to use the markdown cache if
present:

* AbuseReport
* Appearance
* ApplicationSetting
* BroadcastMessage
* Group
* Issue
* Label
* MergeRequest
* Milestone
* Project

At the same time, calls to `escape_once` have been moved into the `single_line`
Banzai pipeline, so they can't be missed out by accident and the work is done
at save, rather than render, time.

This commit adds a number of _html columns and, with the exception of Note,
starts updating them whenever the content of their partner fields changes.

Note has a collision with the note_html attr_accessor; that will be fixed later

A background worker for clearing these cache columns is also introduced - use
`rake cache:clear` to set it off. You can clear the database or Redis caches
separately by running `rake cache:clear:db` or `rake cache:clear:redis`,
respectively.

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Per https://gitlab.com/gitlab-org/gitlab-ce/issues/22820, this helper is mixed
in to classes that lack a `request` method. They do include `env`, so use it
instead.

Closes #22998

add docs and tests - add additional validation
allow move without content
updated response

  - Includes documentation and tests

This refactors Gitlab::Identifier so it uses fewer queries and is
actually tested. Queries are reduced by caching the output as well as
using 1 query (instead of 2) to find a user using an SSH key.

Signed-off-by: NRémy Coutable <remy@rymai.me>

FIxes #19361, #3119.

If the GitHub project repository has wiki, we should not create
the default wiki. Otherwise the GitHub importer will fail because
the wiki repository already exist.

This bug was introduced here
https://gitlab.com/gitlab-org/gitlab-ce/commit/892dea67717c0efbd6a28f763
9f34535ec0a8747

Closes #22911

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

Signed-off-by: NRémy Coutable <remy@rymai.me>

This side-steps the need for mutexes and whatnot.

Signed-off-by: NRémy Coutable <remy@rymai.me>

This will allow the Koding app to enable the integration itself once is has authorized an admin user using the application secrets.

Fix race condition that can be triggered if the token expires right after we retrieve it, but before we can set the new expiry time.