Partial work toward import rake task

This defines a rake task for importing SuggestedResource records from
a CSV file, which can be provided either as a local file or loaded from
a remote URL (via the HTTP or HTTPS protocols).

Committing this now to see what it does for test coverage, as I want to
investigate testing these tasks.

lib/tasks/suggested_resources.rake

@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+# These define tasks for managing our SuggestedResource records.
+namespace :suggested_resources do
+  # While we intend to use Dataclips for exporting these records when needed,
+  # we do need a way to import records from a CSV file.
+  desc 'Replace all Suggested Resources from CSV'
+  task :reload, [:addr] => :environment do |_task, args|
+    raise ArgumentError.new, 'File is required' unless args.addr.present?
+
+    Rails.logger.info('Reloading all Suggested Resource records from CSV')
+    Rails.logger.info("Record count before we reload: #{Detector::SuggestedResource.count}")
+
+    if URI(args.addr).scheme
+      Rails.logger.info("Loading from remote address: #{args.addr}")
+      url = URI.parse(args.addr)
+      raise ArgumentError.new, 'HTTP/HTTPS scheme is required' unless url.scheme.in?(%w[http https])
+      Rails.logger.info(url)
+
+      file = url.read
+      Rails.logger.info(file)
+      # Need to connect to a CSV content type
+      # Invalid parsing should... do something?
+    else
+      Rails.logger.info("Loading from local file: #{args.addr}")
+      file = File.read(args.addr)
+      Rails.logger.info(file)
+      # Invalid / not found file should ... do something?
+    end
+
+    Rails.logger.info('Now ready to parse a CSV')
+    data = CSV.parse(file)
+    Rails.logger.info(data)
+
+    # Rails.logger.info("Record count after we reload: #{Detector::SuggestedResource.count}")
+  end
+end