Merge branch 'fix_remove_fork_link' into 'master'

Remove fork link closes all merge requests opened on source project

Currently, if you:

- create a fork
- open a merge request on the source project
- remove the fork link

The created MR cannot be closed.

With this MR, all pending MR is closed when the fork link is removed.

See merge request !3189

1 files changed, 19 insertions, 0 deletions

diff --git a/app/services/projects/unlink_fork_service.rb b/app/services/projects/unlink_fork_service.rb
new file mode 100644
index 00000000000..315c3e16292
--- /dev/null
+++ b/app/services/projects/unlink_fork_service.rb
@@ -0,0 +1,19 @@
+module Projects
+  class UnlinkForkService < BaseService
+    def execute
+      return unless @project.forked?
+
+      @project.forked_from_project.lfs_objects.find_each do |lfs_object|
+        lfs_object.projects << @project
+      end
+
+      merge_requests = @project.forked_from_project.merge_requests.opened.from_project(@project)
+
+      merge_requests.each do |mr|
+        MergeRequests::CloseService.new(@project, @current_user).execute(mr)
+      end
+
+      @project.forked_project_link.destroy
+    end
+  end
+end