stream.rb in eco-helpers-3.0.20

- old
+ new

@@ -5,10 +5,11 @@
 
       attr_reader :filename
 
       def initialize(filename, **kargs)
         raise ArgumentError, "File '#{filename}' does not exist" unless ::File.exist?(filename)
+
         @filename = filename
         @params   = {
           headers:     true,
           skip_blanks: true
         }.merge(kargs)
@@ -53,9 +54,10 @@
       end
 
       # see https://dalibornasevic.com/posts/68-processing-large-csv-files-with-ruby
       def csv
         return @csv if instance_variable_defined?(:@csv)
+
         @fd  = ::File.open(filename, 'r')
         @csv = Eco::CSV.new(fd, **params)
       end
 
       def init