Create rake task (import:bikes:csv, import:bikes:analyze_csv) & importing class

lib/tasks/import.rake

@@ -0,0 +1,19 @@
+namespace :import do
+  namespace :bikes do
+    # Imports bikes info from CSV file
+    task :csv, [:file] => :environment do |t, args|
+      file = args[:file]
+      next puts "Usage: rake #{t.name}[$csv_file_path]" unless file
+      next puts "File #{file} does not exist or is unreachable" unless File.readable? file
+      pp BikesCsvImporter.new(file).run
+    end
+
+    # Analyze a single field from CSV file
+    task :analyze_csv, [:file, :field] => :environment do |t, args|
+      file, field = args.values_at :file, :field
+      next puts "Usage: rake #{t.name}[$csv_file_path[,\"$field_name\"]]" unless file
+      next puts "File #{file} does not exist or is unreachable" unless File.readable? file
+      pp BikesCsvImporter.new(file).analyze field ? [field] : []
+    end
+  end
+end