WIP: export rake task

Author: ChrisBAshton

lib/tasks/export.rake

@@ -0,0 +1,23 @@
+namespace :export do
+  desc "Export live documents and assets"
+  task live_documents_and_assets: :environment do
+    documents = WhitehallMigration::DocumentExport.exportable_documents
+
+    puts "Exporting #{documents.count} live editions"
+
+    # TODO: delete the override below. We're temporarily only looking
+    # at a pre-selected few for testing.
+    documents = [Document.find_by(content_id: "c6c294fa-2800-40c5-89c8-be73c7cad1f4")]
+    documents.each do |document|
+      # hash = {
+      #   images: edition.revision.lead_image_revision.inspect,
+      #   attachments: # TODO attachments,
+      # }
+
+      hash = WhitehallMigration::DocumentExport.export_to_hash(document)
+
+      pp hash
+    end
+    # TODO: think about how to avoid triggering an update to subscribers when republishing these docs.
+  end
+end