discourse/lib/tasks/i18n.rake

require 'i18n/locale_file_checker'
require 'colored2'

desc "Checks locale files for errors"
task "i18n:check", [:locale] => [:environment] do |_, args|
  locale = args[:locale]
  failed_locales = []

  if locale.present?
    if LocaleSiteSetting.valid_value?(locale)
      locales = [locale]
    else
      puts "ERROR: #{locale} is not a valid locale"
      exit 1
    end
  else
    locales = LocaleSiteSetting.supported_locales
  end

  locales.each do |locale|
    begin
      all_errors = LocaleFileChecker.new.check(locale)
    rescue
      failed_locales << locale
      next
    end

    all_errors.each do |filename, errors|
      puts "", "=" * 80
      puts filename.bold
      puts "=" * 80

      errors.each do |error|
        message = case error[:type]
                  when LocaleFileChecker::TYPE_MISSING_INTERPOLATION_KEY
                    "Missing interpolation key".red
                  when LocaleFileChecker::TYPE_UNSUPPORTED_INTERPOLATION_KEY
                    "Unsupported interpolation key".red
                  when LocaleFileChecker::TYPE_MISSING_PLURAL_KEY
                    "Missing plural key".yellow
                  end
        details = error[:details] ? ": #{error[:details]}" : ""

        puts error[:key] << " -- " << message << details
      end
    end
  end

  failed_locales.each do |locale|
    puts "", "Failed to check locale files for #{locale}".red
  end
end