Merge branch '284140-enable-flag-by-default' into 'master'

Enable codequality_mr_diff feature flag by default

See merge request gitlab-org/gitlab!61810

config/feature_flags/development/codequality_mr_diff.yml

@@ -5,4 +5,4 @@ rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/284140
 milestone: '13.7'
 type: development
 group: group::testing
-default_enabled: false
+default_enabled: true

doc/user/project/merge_requests/code_quality.md

@@ -53,20 +53,21 @@ See also the Code Climate list of [Supported Languages for Maintainability](http
 
 > - [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/267612) in [GitLab Ultimate](https://about.gitlab.com/pricing/) 13.11.
 > - [Deployed behind a feature flag](../../../user/feature_flags.md), disabled by default.
+> - [Enabled by default](https://gitlab.com/gitlab-org/gitlab/-/issues/284140) in GitLab 13.12.
 
 Changes to files in merge requests can cause Code Quality to fall if merged. In these cases,
 an indicator is displayed (**{information-o}** **Code Quality**) on the file in the merge request's diff view. For example:
 
 ![Code Quality MR diff report](img/code_quality_mr_diff_report_v13_11.png)
 
-To enable this feature, a GitLab administrator can run the following in a
+To disable this feature, a GitLab administrator can run the following in a
 [Rails console](../../../administration/operations/rails_console.md):
 
 ```ruby
 # For the instance
-Feature.enable(:codequality_mr_diff)
+Feature.disable(:codequality_mr_diff)
 # For a single project
-Feature.enable(:codequality_mr_diff, Project.find(<project id>))
+Feature.disable(:codequality_mr_diff, Project.find(<project id>))
 ```
 
 ## Use cases

ee/changelogs/unreleased/284140-enable-flag-by-default.yml

+---
+title: Show code quality badges on MR diff file headers
+merge_request: 61810
+author:
+type: added

lib/gitlab/ci/features.rb

@@ -52,7 +52,7 @@ module Gitlab
       end
 
       def self.display_quality_on_mr_diff?(project)
-        ::Feature.enabled?(:codequality_mr_diff, project, default_enabled: false)
+        ::Feature.enabled?(:codequality_mr_diff, project, default_enabled: :yaml)
       end
 
       def self.gldropdown_tags_enabled?