Fix an issue when the target branch of a MR had been deleted
Before displaying the "diverged commits" note, we're checking if the MR
is open, but we should check if it's mergeable instead because this
check ensure the source and target branches exist.
This was introduced by !2217 and fixes#14388.
See merge request !3294
Fix MergeRequest#source_sha when there is no diff
Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/14170
### Overview
This MR fixes an unhandled Exception when visiting the page of an open Merge Request without diff.
### Description
`MergeRequest#source_sha` is expected to return the sha of the source branch last commit. But when an open Merge Request has no diff (e.g. all commits have already been merged to the target branch), `merge_request.source_sha` incorrectly returns `nil`.
This was without consequences before – but since !2217 was merged (a few days ago), it makes `Gitlab::Git::Commit.between` raise an "Unexpected nil argument" exception. This can be reproduced when visiting the http://localhost:3000/gitlab-org/gitlab-test/merge_requests/2 page on a fresh local Gitlab setup.
This MR fixes the crash, by making sure that `source_sha` returns a
correct result even when there is no diff available. I also added tests.
@DouweM I believe you wrote most of this code in the first place ; does this looks correct to you, or is there a better way to resolve this issue maybe?
See merge request !3135
Removed diverging commit count calculation from Repository#build_cache
Using a repository with 1000 branches the old `Repository#build_cache` method would take around 180 seconds to complete. Without calculating the diverging commit counts this method "only" takes around 60 seconds.
See commit 28cc2413eb5ddf920ce0b5eed803121f8b884754 for more details. This fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/14058
cc @rspeicher
See merge request !3274
Changing filter dropdowns shows loading
Instead of doing a full refresh of the page - i've modified the filterResults method on the Issues object to work for this form as well

Closes#14359
See merge request !3237
Show a notice for diffs that are empty/too large
This builds upon https://gitlab.com/gitlab-org/gitlab_git/merge_requests/72 but will fail until said MR has been merged.
Fixes gitlab-org/gitlab-ce#13912, gitlab-org/gitlab-ce#13644, gitlab-org/gitlab-ce#13557, gitlab-org/gitlab-ce#13267, gitlab-org/gitlab-ce#3906
See merge request !3185
The avatar logic has been moved from Project to Repository as this makes
caching easier. The logic itself in turn has been changed so that the
logo file names are cached in Redis. This cache is flushed upon pushing
a commit but _only_ if:
1. The commit was pushed to the default branch
2. The commit actually changes any of the logo files
If no branch or commit is given the cache is flushed anyway, this
ensures that calling Repository#expire_cache without any arguments still
flushes the avatar cache (e.g. this is used when removing a project).
Fixesgitlab-org/gitlab-ce#14363
Adjusted behavior so canceled builds tagged as allowed to fail do not fail build
## What does this MR do?
This diff changes the 'Allowed to fail' flag to also ignore canceled builds, whereas before, canceled builds could fail the suite even if they were marked as 'Allowed to fail'
dupe of !3258 to force a build
## Are there points in the code the reviewer needs to double check?
no
## Why was this MR needed?
Unexpected behavior as a user
## What are the relevant issue numbers?
## Screenshots (if relevant)

See merge request !3271
External Users
The user has the rights of a public user execpt it can never create a project, group, or team. Also it cant view internal projects.
Partially fix for both #4009 and #13938 (except the LDAP sync or a pattern to detect external users)

See merge request !3171
1. Make the "subscribed" text in Issuable sidebar reflect the labels
subscription status
2. Current user mut be logged-in to toggle issue/MR/label subscription
1. Allow subscribing (the current user) to a label
- Refactor the `Subscription` coffeescript class
- The main change is that it accepts a container, and conducts all
DOM queries within its scope. We need this because the labels
page has multiple instances of `Subscription` on the same page.
2. Creating an issue or MR with labels notifies users subscribed to those labels
- Label `has_many` subscribers through subscriptions.
3. Adding a label to an issue or MR notifies users subscribed to those labels
- This only applies to subscribers of the label that has just been
added, not all labels for the issue.
Ignore eager loading in Project.search UNION
This fixes issues such as filtering groups by names on pages such as
https://gitlab.com/dashboard/groups.
See merge request !3229
Revert the avatar cropping feature
Reverts !2951 since the added 'mini_magick' dependency should be replaced by client-side croppping
See merge request !3223
The queries that are UNION'd together don't need any eager loading
(since we really only use the resulting SQL instead of having
ActiveRecord actually run the queries). By dropping any eager loaded
associations queries such as the following work instead of producing a
SQL error:
Project.all.includes(:namespace).search('foo')
Ensure "new SSH key" email do not ends up as dead Sidekiq jobs
Related to #2235.
This is done by:
1. Delaying the notification sending after the SSH key is commited in DB
2. Gracefully exit the mailer method if the record cannot be found
/cc @dblessing @stanhu @DouweM
See merge request !3163
Related to #2235.
This is done by:
1. Delaying the notification sending after the SSH key is commited in DB
2. Gracefully exit the mailer method if the record cannot be found
Cleanup Ci::Commit, Ci::Build and CommitStatus views
This MR tries to do first sweep of cleanups to Ci::Commit and
Ci::Build objects removing all view-related functions and fixing the
API from other side.
Fixes: https://gitlab.com/gitlab-org/gitlab-ce/issues/6046
See merge request !2760
Bring from EE: Share Project with Group
- [x] Models and migrations
- [x] Logic, UI
- [x] Tests
- [x] Documentation
- [x] Share with group lock
- [x] Api feature
- [x] Api docs
- [x] Api tests
Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
For #12831
cc @DouweM @rspeicher @vsizov
See merge request !3186