Fix faulty deployment refs

In the 8.13 RC cycle, so before the release, there was a time in which references in git where stored by id instead of iid. This could be fixed by time, if the iid catches up with the id, it overwrites it. But in the mean time we have wrong refs in the folder. This commit fixes that. For all projects we have deployments we'll find the ones where the ref has a higher number than the iid is now and calls `#create_ref` on the corresponding deployment.

Fix faulty deployment refs
f20eadcb · Z.J. van de Weg · a6b49757 · f20eadcb
Commit f20eadcb authored Nov 08, 2016 by Z.J. van de Weg
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cleanup.rake lib/tasks/gitlab/cleanup.rake +23 -0

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--- a/lib/tasks/gitlab/cleanup.rake
+++ b/lib/tasks/gitlab/cleanup.rake
@@ -91,5 +91,28 @@ namespace :gitlab do
        puts "To block these users run this command with BLOCK=true".color(:yellow)
      end
    end
+
+    # This is a rake task which removes faulty refs. These refs where only
+    # created in the 8.13.RC cycle, and fixed in the stable builds which were
+    # released. So likely this should only be run once on gitlab.com
+    # Faulty refs are moved so they are kept around, else some features break.
+    desc 'GitLab | Cleanup | Remove faulty deployment refs'
+    task move_faulty_deployment_refs: :environment do
+      projects = Project.where(id: Deployment.select(:project_id).distinct)
+
+      projects.find_each do |project|
+        rugged = project.repository.rugged
+
+        max_iid = project.deployments.maximum(:iid)
+
+        rugged.references.each('refs/environments/**/*') do |ref|
+          id = ref.name.split('/').last.to_i
+          next unless id > max_iid
+
+          project.deployments.find(id).create_ref
+          rugged.references.delete(ref)
+        end
+      end
+    end
  end
 end