Add commentaire pj migration task

lib/tasks/2019_05_29_migrate_commentaire_pj.rake

@@ -0,0 +1,37 @@
+namespace :'2019_05_29_migrate_commentaire_pj' do
+  task run: :environment do
+    commentaires = Commentaire.where
+      .not(file: nil)
+      .left_joins(:piece_jointe_attachment)
+      .where('active_storage_attachments.id IS NULL')
+      .order(:created_at)
+
+    limit = ENV['LIMIT']
+    if limit
+      commentaires.limit!(limit.to_i)
+    end
+
+    progress = ProgressReport.new(commentaires.count)
+    commentaires.find_each do |commentaire|
+      if commentaire.file.present?
+        uri = URI.parse(URI.escape(commentaire.file_url))
+        response = Typhoeus.get(uri)
+        if response.success?
+          filename = commentaire.file.filename || commentaire.file_identifier
+          updated_at = commentaire.updated_at
+          dossier_updated_at = commentaire.dossier.updated_at
+          commentaire.piece_jointe.attach(
+            io: StringIO.new(response.body),
+            filename: filename,
+            content_type: commentaire.file.content_type,
+            metadata: { virus_scan_result: ActiveStorage::VirusScanner::SAFE }
+          )
+          commentaire.update_column(:updated_at, updated_at)
+          commentaire.dossier.update_column(:updated_at, dossier_updated_at)
+        end
+      end
+      progress.inc
+    end
+    progress.finish
+  end
+end