translations_replacer.rb

require 'yaml'

TRANSLATIONS = YAML.load_file('en.yml')['en']

def t(path)
  current = TRANSLATIONS
  path.split('.').take_while { |key| current = current[key] }
  current
end

templates = Dir.glob("assets/scripts/app/templates/**/*.hbs")
templates.each do |template_path|
  template = File.read(template_path)
  template.gsub!(/\{\{t\s+([^\}]+)\}\}/) do |match|
    t $1
  end

  File.open(template_path, 'w') { |f|
    f.write template
  }
end