select_xcode_signing_method.rb

#!/usr/bin/ruby

require 'xcodeproj'

# ============================================
# !!! I've released a ruby gem that does the same thing, but better.
# You can install it by running `gem install xcprovisioner` or
# `sudo gem install xcprovisioner` if it asks for sudo rights.
#
# For more info: https://github.com/thelvis4/XCProvisioner
# ============================================

# Usage:
# ruby select_xcode_signing_method.rb -p <path/to/xcode_project> -t <Target> -m ['Automatic' | 'Manual']

class Options
	attr_accessor :path, :target, :method

	def initialize(args)
		@path = args[:path] || Dir.glob("*.xcodeproj").first
		@target = args[:target]
		@method = args[:method]
	end
end

def parse_args
	options_hash = {}
	args = ARGV
	args.each_with_index do |arg, index|
		case arg
		when '--project_path', '-p'
			path = args[index + 1]
			unless File.exist?(path)
				abort('There is no file at specified path.')
			end
			options_hash[:path] = path
		when '--target', '-t'
			options_hash[:target] = args[index + 1]
		when '--signing_method', '-m'
			method = args[index + 1]
			unless ['Automatic', 'Manual'].include?(method)
				abort("'Invalid signing method specified. Please use either 'Automatic' or 'Manual'")
			end
			options_hash[:method] = method
		end
	end

	options_hash
end

options = Options.new parse_args

project = Xcodeproj::Project.open(options.path)
target_with_name = project.targets.select {|target| target.name == options.target }.first
unless !target_with_name
	target_id = target_with_name.uuid
	attributes = project.root_object.attributes['TargetAttributes']
	target_attributes = attributes[target_id]
	target_attributes['ProvisioningStyle'] = options.method

	project.save

	puts "Code signing was set to '#{options.method}'."
else
	puts "Target with name '#{options.target}' not found."
end