Add cleaned data upload script for Lowell

lib/tasks/upload.rake

@@ -0,0 +1,24 @@
+namespace :upload do
+    desc 'upload cleaned Lowell CSVs to the SFTP server'
+    task lowell: :environment do
+        new_files = Array.new
+        input_filepath = Rails.root.join('tmp', 'data', 'rpp_data', 'clean')
+        Dir.foreach(input_filepath) do |filename|
+            next if filename.start_with?('.') # skip hidden files and ./.. directories
+            # this can probably be replaced with Dir.join or similar
+            input_filename = Rails.root.join('tmp', 'data', 'rpp_data', 'clean', filename).to_s
+            sftptogo_url = ENV['SFTPTOGO_URL']
+            uri = URI.parse(sftptogo_url)
+            Net::SFTP.start(uri.host, uri.user, password: uri.password) do |sftp|
+                puts "Uploading #{filename}..."
+                sftp.upload!(input_filename, "/data/survey_responses/clean/#{filename}")
+            end
+            new_files.append(filename)
+        end
+        # print remote directory contents with new files marked
+        path = '/data/survey_responses/clean/'
+        Sftp::Directory.open(path:) do |file|
+            # the open method already prints all the contents...
+        end
+    end
+end