NSLocalizedFinder finds all localized strings in your project and exports all of them into a valid .strings file

NSLocalizedFinder

#!/usr/bin/env ruby
# This Script finds all NSLocalizedString in your project and exports them in a new file

# Detecting the number of arguments
abort("Error: #{ARGV.length} arguments passed / 2 Required") unless ARGV.length == 2

# Printing arguments
puts "Project folder: #{ARGV[0]}"
puts "Output file: #{ARGV[1]}"

# Checking if directory exist
abort("Error: Directory #{ARGV[0]} doesn't exist") unless File.directory?(ARGV[0])

# Opening output file
output = File.open( ARGV[1] , 'w' )
output << "// Localizable file generated using NSLocalizedFinder \n"
output << "// Tool created by @pepibumur github.com/pepibumur \n\n"

# Finding files
expressions = []
files = Dir.glob("#{ARGV[0]}**/*")

# Finding localized string
files.each { |file|
	next if File.directory?(file)
	begin 
		File.read(file).scan(/NSLocalizedString\(\s*\@\"([^,]*)\"\s*\,[^)]*\)/) { |localized_string| 
			expressions << localized_string[0] unless expressions.include?(localized_string[0]) 
		}
	rescue StandardError
		next		
	end
}

# Saving to output file
expressions.each { |expression|
	output << "\"#{expression}\"=\"\";\n"
}

# Closing output file
output.close