Category File
Rename 'category_example.rb' file to 'category.rb'
Populate GOOGLE_PRODUCT_CATEGORY with the preferred Google Shopping category.
Populate EXCLUDED_SUPPLIER with any suppliers or brands to be excluded from feed generation.
Populate DEFAULT_CATEGORY with preferred default product category if no 'Secondary categories' value is provided.
Shopping File
Update Feed('your_csv_file_name').export_feed to contain your filename of exported CSV data
In your terminal run:
ruby shopping.rb