Merge script for .strings file generated from Storyboard. ibtool often fails to merge importing .strings file into new generated one.

ibhelper.rb

#!/usr/bin/ruby

require 'optparse'

def main
  argv = {}
	 
	OptionParser.new do |opt|
	  opt.on('--previous VALUE') do |v|
	  	argv[:previous] = v
	  end
	  opt.on('--current VALUE') do |v|
	  	argv[:current] = v
	  end
	 	opt.parse!(ARGV)
	end

	if !argv[:previous] || !argv[:current]
		return
	end

	text = File::open(argv[:previous], "r").read
	output = File::open(argv[:current], "r").read

	dictionary = {}
	text.scan(/^\"([A-Za-z0-9\-\.]+)\" = \"(.+)\";$/).each{|result|
		dictionary[result[0]] = result[1]
	}

	output.each_line{|line|
		if line =~ /^\"([A-Za-z0-9\-\.]+)\" = \"(.+)\";$/
			if dictionary[$1] && dictionary[$1] != $2
				puts sprintf("\"%s\" = \"%s\";", $1, dictionary[$1])
				next
			end
		end
		puts line
	}
end

main