Find strings that need translating in an xcode project.

xcode_pending_translations.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'trollop'
require 'nokogiri'
require 'tmpdir'

opts = Trollop::options do
    banner <<-EOS
Find strings that need translating in an xcode project.

Installation:

  * drop this file in $PATH
  * make sure the following gems are installed
    * Ruby
    * Rubygems
    * Trollop
    * Nokogiri

Usage:
  
  cd path/to/dir/with/files/needing/transation/
  xcode_pending_translations.rb


where [options] are:
EOS
  opt :debug, "Print debug statements", :type => :boolean, :short => "-d"
end

OPTS = opts

def run(cmd)
  puts "* Running #{cmd}" if OPTS[:debug]
  system cmd
end

def load_translatable_hashes_from_paths(paths)
  paths.inject({}) do |memo,path|
    basename = "#{path.gsub(/[^A-z0-9]/, '-')}-#{Time.now.to_i}"
    xml_plist_path = File.join(Dir::tmpdir, "#{basename}.xml")
    run "plutil -convert xml1 -o - #{path} > #{xml_plist_path}"
    doc = Nokogiri::XML(File.open(xml_plist_path))
    if OPTS[:debug]
      puts "* Generated plist"
    end
    translations = doc.search('//key').inject({}) do |m,key|
      m[key.text] = key.next_element.text
      m
    end
    memo[path] = translations
    memo
  end
end

def translations_for_pattern(pattern)
  paths = Dir.glob("**/#{pattern}")
  path_translations = load_translatable_hashes_from_paths(paths)
  all_translations = {}
  path_translations.each do |path,translations|
    translations.each do |k,v|
      all_translations[k] ||= v
    end
  end
  path_translations.each do |path, translations|
    puts "****************************************"
    puts "* #{path}"
    puts
    all_translations.each do |k,v|
      puts "\"#{k}\" = \"#{v}\";" unless translations[k]
    end
    puts
    puts
  end
end

%w(MainStoryboard.strings Localizable.strings InfoPlist.strings).each do |pattern|
  translations_for_pattern(pattern)
end