Guard file for running test unit / spec files

Guardfile

# More info at https://github.com/guard/guard#readme

# Instructions:
# 1) gem install guard guard-shell
# 2) run guard in root

# run test with 'redgreen' gem(for colour) if available otherwise with plain ruby
guard "shell" do
  watch(%r{^(.+)/.+\.rb$}) do |m|
  	if File.exists?("#{m[1]}/#{m[1]}_test.rb")
  		cmd = `which rg`.empty? ? "ruby" : "rg"
	  	puts `cd #{m[1]}; #{cmd} #{m[1]}_test.rb`
	  else
	  	puts `cd #{m[1]}; rspec #{m[1]}_spec.rb --color`
	  end
  end
end