Convert migrations to generate subkeys to a background migration

2 files changed, 25 insertions, 61 deletions

diff --git a/db/post_migrate/20171002161539_create_gpg_key_subkeys_for_existing_gpg_keys.rb b/db/post_migrate/20171002161539_create_gpg_key_subkeys_for_existing_gpg_keys.rb
deleted file mode 100644
index 04c81ea684f..00000000000
--- a/db/post_migrate/20171002161539_create_gpg_key_subkeys_for_existing_gpg_keys.rb
+++ /dev/null
@@ -1,61 +0,0 @@
-# See http://doc.gitlab.com/ce/development/migration_style_guide.html
-# for more information on how to write migrations for GitLab.
-
-class CreateGpgKeySubkeysForExistingGpgKeys < ActiveRecord::Migration
-  disable_ddl_transaction!
-
-  DOWNTIME = false
-
-  class GpgKey < ActiveRecord::Base
-    self.table_name = 'gpg_keys'
-
-    include EachBatch
-    include ShaAttribute
-
-    sha_attribute :primary_keyid
-    sha_attribute :fingerprint
-
-    has_many :subkeys, class_name: 'GpgKeySubkey'
-  end
-
-  class GpgKeySubkey < ActiveRecord::Base
-    self.table_name = 'gpg_key_subkeys'
-
-    include ShaAttribute
-
-    sha_attribute :keyid
-    sha_attribute :fingerprint
-  end
-
-  def up
-    GpgKey.with_subkeys.each_batch do |batch|
-      batch.each do |gpg_key|
-        next if gpg_key.subkeys.any?
-
-        create_subkeys(gpg_key) && update_signatures(gpg_key)
-      end
-    end
-  end
-
-  def down
-  end
-
-  private
-
-  def create_subkeys(gpg_key)
-    gpg_subkeys = Gitlab::Gpg.subkeys_from_key(gpg_key.key)
-
-    gpg_subkeys[gpg_key.primary_keyid.upcase]&.each do |subkey_data|
-      gpg_key.subkeys.build(keyid: subkey_data[:keyid], fingerprint: subkey_data[:fingerprint])
-    end
-
-    # Improve latency by doing all INSERTs in a single call
-    GpgKey.transaction do
-      gpg_key.save!
-    end
-  end
-
-  def update_signatures(gpg_key)
-    InvalidGpgSignatureUpdateWorker.perform_async(gpg_key.id)
-  end
-end
diff --git a/db/post_migrate/20171005130944_schedule_create_gpg_key_subkeys_from_gpg_keys.rb b/db/post_migrate/20171005130944_schedule_create_gpg_key_subkeys_from_gpg_keys.rb
new file mode 100644
index 00000000000..c8bbfbccc08
--- /dev/null
+++ b/db/post_migrate/20171005130944_schedule_create_gpg_key_subkeys_from_gpg_keys.rb
@@ -0,0 +1,25 @@
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class ScheduleCreateGpgKeySubkeysFromGpgKeys < ActiveRecord::Migration
+  disable_ddl_transaction!
+
+  DOWNTIME = false
+
+  class GpgKey < ActiveRecord::Base
+    self.table_name = 'gpg_keys'
+  end
+
+  def up
+    GpgKey.select(:id).in_batches do |relation|
+      jobs = relation.pluck(:id).map do |id|
+        ['CreateGpgKeySubkeysFromGpgKeys', [id]]
+      end
+
+      BackgroundMigrationWorker.perform_bulk(jobs)
+    end
+  end
+
+  def down
+  end
+end