Method to add custom path to user-created stopword directory

[chris357]

Per discussion in Functionality to modify stopword lists? thread. I added a method to hasher module so users can add a custom path to a directory with user-made stopword files.

def add_custom_stopword_path(path)
  STOPWORDS_PATH.unshift(path)
end

Not sure it adds a tonne of value over the current way to hack it,
Current:

include ClassifierReborn
Hasher::STOPWORDS_PATH.unshift("/home/ubuntu/workspace/data")

But I think it makes adding a path slightly more intuitive for someone not digging into the code.
Updated:

include ClassifierReborn
Hasher.add_custom_stopword_path("/home/ubuntu/workspace/data")

Thoughts?

[Ch4s3]

This looks like a nice simple solution. Can you add a test for the method?

I'm trying to think if this warrants some refactoring of the Hasher module.

[chris357]

I've added a test which creates a tempfile of stopwords, and then adds that tempfile's path using the add_custom_stopword_path method.

1. Test is a little verbose (mostly because you don't know a tempfile's exact name until after creation). So added lots of comments.
2. Also needed to change the original require File.dirname(__FILE__) + '/../test_helper' to require_relative '../test_helper' because my IDE didn't like the absolute path.

Let me know your thoughts.

[Ch4s3]

I think it looks good. Any refactoring of the hashing function is probably best left for later.