Add support for cross project references for labels
## Summary
Support for cross project references for labels.
## Rationale
1. Cross project label references are currently not supported in GitLab
1. `to_reference` method signature in `Label` model breaks the abstraction introduced in `Referable`.
`concerns/referable.rb: def to_reference(_from_project = nil)`
Signatures:
```
label.rb: def to_reference(format = :id)
commit_range.rb: def to_reference(from_project = nil)
commit.rb: def to_reference(from_project = nil)
external_issue.rb: def to_reference(_from_project = nil)
group.rb: def to_reference(_from_project = nil)
issue.rb: def to_reference(from_project = nil)
merge_request.rb: def to_reference(from_project = nil)
milestone.rb: def to_reference(from_project = nil)
project.rb: def to_reference(_from_project = nil)
snippet.rb: def to_reference(from_project = nil)
user.rb: def to_reference(_from_project = nil)
```
This MR suggests using `def to_reference(from_project = nil, format: :id)` which makes use of keyword arguments and preserves abstract interface.
1. We need support for cross project label references when we want to move issue to another project
It may happen that issue description, system notes or comments contain reference to label and this reference will be invalid after moving issue to another project and will not be displayed correctly unless we have support for cross project references.
Merge request that needs this feature: https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/2831
I think that cross project label references may be useful, (example: `Hey, see our issues for CI in GitLab CE! - gitab-org/gitlab-ce~"CI"`).
cc @JobV @DouweM @rspeicher
See merge request !2966
Add a spec for WikiPipeline
Removes the specs from GollumTagsFilter that were more like integration
tests for the pipeline than unit tests of the filter.
See merge request !3054
When `object_class.link_reference_pattern` was `nil` because object
being processed do not implemement link references `call` method
returned `nil` instead of returning document, even if document has been
processed in for basic reference pattern.
Return empty array when commit has no statuses in API
This makes API endpoint for Commit Statuses return empty array instead
of 404 when commit exists, but has no statuses.
Closes#3080
See merge request !3010
Batch size >1000 does not pay off
We did a small experiment to see how a full scan of the Redis keys on
gitlab.com speeds up as we increase the batch size. The values on the
right are time in seconds for a full scan (no delete operations).
```
count: 10); 284.500529021
count: 100); 86.21216934
count: 1_000); 60.931676195
count: 10_000); 60.96355610
count: 100_000); 62.378172541
```
It looks like 1,000 is a good number.
See merge request !2970
Fix for project paths ending in .wiki
This prevents `Git operation was rejected by pre-receive hook` when
an actual project ending with .wiki is thought to be a wiki by the
`Internal` API.
Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/13742
See merge request !2960
We did a small experiment to see how a full scan of the Redis keys on
gitlab.com speeds up as we increase the batch size. The values on the
right are time in seconds for a full scan (no delete operations).
count: 10); 284.500529021
count: 100); 86.21216934
count: 1_000); 60.931676195
count: 10_000); 60.96355610
count: 100_000); 62.378172541
It looks like 1,000 is a good number.
Rémy Coutable
Dmitriy Zaporozhets
Robert Speicher
Iuri de SilvioandRémy Coutable
Douwe Maan
Robert Speicher
Peter Suschlik
evuezandRémy Coutable
Jacob Vosmaer
Grzegorz Bizon
Kazuki SawadaandRémy Coutable
Douwe Maan
James Lopez
Marin Jankovski
Kamil Trzcinski
Grzegorz BizonandGrzegorz Bizon