Deliverfile script parses app metadata from android-like strings.xml and sets up values for deliver tool from Fastlane

parse_xml.rb

###### Simple script parses app metadata from android-like strings.xml and sets up values for deliver
###### You can always last version of this script at https://gist.github.com/SemenovAlexander/0b84606fa1439ebfe802
baseLanguage = "en-US"

# Selecting all subfolder names of metadata directory as available locales
supportedLanguages =  Dir.entries('metadata').select {|entry| File.directory? File.join('metadata',entry) and !(entry =='.' || entry == '..') }

# Creating variables for fields in each language, with dummy stub for base language
titleHash = {
	baseLanguage => ""
}
descriptionHash = {
	baseLanguage => ""
}
keywordsHash = {
	baseLanguage => [""]
}
supportUrlHash = {}
marketingUrlHash = {}
privacyUrlHash = {}
verstionWhatsNewHash = {}
#it's not the best solution, but will work for now. We need to loop though base language firstly, to be able spread default values to all languages
supportedLanguages.unshift(baseLanguage)

supportedLanguages.each do |lang|
	strings = {}

	#reading xml contents
	f = File.open("metadata/"+lang+"/store_metadata.xml")
	doc = Nokogiri::XML(f)
	f.close
	# parsing android-style resources
	# taking each 'string' node under 'resources' , and building hash from it's 'name' attribute as key and content as value
	doc.xpath('//resources/string').each do |node|
      strings[node.attribute("name").value] = node.content
    end
	
	#copyright is the same for each language
	if lang == baseLanguage
		#checking if all needed keys are in default locale
		['title','description','keywords','copyright'].each do |key| 			
			raise "Default #{baseLanguage} xml file does'n contain mandatory value #{key}" unless strings.has_key?(key)
		end
# 		setting common values to all categories
		copyright strings['copyright']
		
		if strings.has_key?('primary_category')
			primary_category strings['primary_category']
		end 
		
		if strings.has_key?('secondary_category')
			primary_category strings['secondary_category']
		end 
		
		if strings.has_key?('primary_subcategories')
			primary_category strings['primary_subcategories'].split(',')
		end 	
			
		if strings.has_key?('secondary_subcategories')
			primary_category strings['secondary_subcategories'].split(',')
		end 
	end    
	titleHash[lang] = strings.has_key?('title') ? strings['title'] : titleHash[baseLanguage]
	descriptionHash[lang] = strings.has_key?('description') ? strings['description'] : descriptionHash[baseLanguage]

	supportUrl = strings.has_key?('support_url') ? strings['support_url'] : supportUrlHash[baseLanguage] 
	supportUrlHash[lang] = supportUrl unless !supportUrl

	marketingUrl = strings.has_key?('marketing_url') ? strings['marketing_url'] : marketingUrlHash[baseLanguage]
	marketingUrlHash[lang] = marketingUrl unless !marketingUrl

	privacyUrl = strings.has_key?('privacy_url') ? strings['privacy_url'] : privacyUrlHash[baseLanguage]
	privacyUrlHash[lang] = privacyUrl unless !privacyUrl
	
	verstionWhatsNew = strings.has_key?('changelog') ? strings['changelog'] : verstionWhatsNewHash[baseLanguage]
	verstionWhatsNewHash[lang] = verstionWhatsNew unless !verstionWhatsNew
	
	#keywords should be an array
	keywordsArray =	strings.has_key?('keywords') ? strings['keywords'].split(',') : keywordsHash[baseLanguage]
	keywordsHash[lang] = keywordsArray.collect(&:strip)
end 

title(titleHash)
description(descriptionHash)
keywords(keywordsHash)
support_url(supportUrlHash) unless supportUrlHash.empty?
marketing_url(marketingUrlHash) unless marketingUrlHash.empty?
privacy_url(privacyUrlHash) unless privacyUrlHash.empty?
changelog(verstionWhatsNewHash) unless verstionWhatsNewHash.empty?