Merge remote-tracking branch 'upstream/master' into 24196-protected-variables

* upstream/master: (89 commits)
  Revert "Merge branch 'grpc-1.3.4' into 'master'"
  Return nil when looking up config for unknown LDAP provider
  Avoid crash when trying to parse string with invalid UTF-8 sequence
  Enable Gitaly by default in GitLab 9.3
  Don’t create comment on JIRA if link already exists
  Disable sub_group_issuables_spec.rb for mysql
  Fix math rendering on blob pages
  Add changelog
  Don't allow to pass a user to ProjectWiki#http_url_to_repo
  Revert "Merge branch '1937-https-clone-url-username' into 'master'
"
  Fix bottom padding for build page
  Fix /unsubscribe slash command creating extra todos
  Fix omniauth-google-oauth2 dependencies in Gemfile.lock
  Update looks job log
  'New issue'/'New merge request' dropdowns should show only projects with issues/merge requests feature enabled
  Fix spec for Members::AuthorizedDestroyService
  31616-add-uptime-of-gitlab-instance-in-admin-area
  Set head pipeline when creating merge requests
  Create a separate helper to check if we show particular tab on a search page
  Add performance deltas between app deployments on Merge Request widget
  ...

5 files changed, 25 insertions, 5 deletions

diff --git a/lib/api/entities.rb b/lib/api/entities.rb
index 936f3283877..2e2b95b7994 100644
--- a/lib/api/entities.rb
+++ b/lib/api/entities.rb
@@ -152,7 +152,10 @@ module API
       expose :web_url
       expose :request_access_enabled
       expose :full_name, :full_path
-      expose :parent_id
+
+      if ::Group.supports_nested_groups?
+        expose :parent_id
+      end
 
       expose :statistics, if: :statistics do
         with_options format_with: -> (value) { value.to_i } do
diff --git a/lib/api/groups.rb b/lib/api/groups.rb
index 3da7d735da8..ee85b777aff 100644
--- a/lib/api/groups.rb
+++ b/lib/api/groups.rb
@@ -70,7 +70,11 @@ module API
       params do
         requires :name, type: String, desc: 'The name of the group'
         requires :path, type: String, desc: 'The path of the group'
-        optional :parent_id, type: Integer, desc: 'The parent group id for creating nested group'
+
+        if ::Group.supports_nested_groups?
+          optional :parent_id, type: Integer, desc: 'The parent group id for creating nested group'
+        end
+
         use :optional_params
       end
       post do
diff --git a/lib/api/projects.rb b/lib/api/projects.rb
index ed5004e8d1a..d4fe5c023bf 100644
--- a/lib/api/projects.rb
+++ b/lib/api/projects.rb
@@ -58,6 +58,8 @@ module API
           optional :owned, type: Boolean, default: false, desc: 'Limit by owned by authenticated user'
           optional :starred, type: Boolean, default: false, desc: 'Limit by starred status'
           optional :membership, type: Boolean, default: false, desc: 'Limit by projects that the current user is a member of'
+          optional :with_issues_enabled, type: Boolean, default: false, desc: 'Limit by enabled issues feature'
+          optional :with_merge_requests_enabled, type: Boolean, default: false, desc: 'Limit by enabled merge requests feature'
         end
 
         params :create_params do
@@ -69,11 +71,15 @@ module API
           options = options.reverse_merge(
             with: Entities::Project,
             current_user: current_user,
-            simple: params[:simple]
+            simple: params[:simple],
+            with_issues_enabled: params[:with_issues_enabled],
+            with_merge_requests_enabled: params[:with_merge_requests_enabled]
           )
 
           projects = filter_projects(projects)
           projects = projects.with_statistics if options[:statistics]
+          projects = projects.with_issues_enabled if options[:with_issues_enabled]
+          projects = projects.with_merge_requests_enabled if options[:with_merge_requests_enabled]
           options[:with] = Entities::BasicProjectDetails if options[:simple]
 
           present paginate(projects), options
diff --git a/lib/api/v3/entities.rb b/lib/api/v3/entities.rb
index 332f233bf5e..2e1b243c2db 100644
--- a/lib/api/v3/entities.rb
+++ b/lib/api/v3/entities.rb
@@ -137,7 +137,10 @@ module API
         expose :web_url
         expose :request_access_enabled
         expose :full_name, :full_path
-        expose :parent_id
+
+        if ::Group.supports_nested_groups?
+          expose :parent_id
+        end
 
         expose :statistics, if: :statistics do
           with_options format_with: -> (value) { value.to_i } do
diff --git a/lib/api/v3/groups.rb b/lib/api/v3/groups.rb
index 6187445fc8d..2c52d21fa1c 100644
--- a/lib/api/v3/groups.rb
+++ b/lib/api/v3/groups.rb
@@ -74,7 +74,11 @@ module API
         params do
           requires :name, type: String, desc: 'The name of the group'
           requires :path, type: String, desc: 'The path of the group'
-          optional :parent_id, type: Integer, desc: 'The parent group id for creating nested group'
+
+          if ::Group.supports_nested_groups?
+            optional :parent_id, type: Integer, desc: 'The parent group id for creating nested group'
+          end
+
           use :optional_params
         end
         post do