I have a 2 scripts:
test1.rb
require 'test2.rb'
puts "hello"
test2.rb
puts "test"
I'm running this by executing ruby test2.rb test1.rb.
But only test is printed out and not hello.
4 Answers
You only need to run ruby test1.rb and the require statement should pull in test2.rb for you - you don't need to put it on the command line as well. (That will try and run test2.rb, passing the string 'test1.rb' as an argument, which is not what you want here)
Edit: the require statement does not look in the current directory by default when trying to find 'test2.rb'. You can explicitly specify it by changing it to:
require File.dirname(__FILE__) + '/test2.rb'
4 Comments
litterbugkid
When I do that it says theres no such file to load -- test2.rb
litterbugkid
File.dirname("C:/Ruby192") + '/test2.rb' doesnt seem to be working either. Error: no such file to load C://test2.rb. Doesnt seem to be forming the path correctly.
Jon M
when it says
__FILE__, you need to actually write that, not 'Ruby192'!Jon M
Ashish's answer is also correct -
require_relative 'test2.rb' also works for this.in test1.rb do (assuming test2.rb is in same directory, otherwise give its path relative to test1.rb)
require_relative 'test2.rb'
puts "hello"
and on the command line just do ruby test1.rb
1 Comment
saihgala
yeah its a Kernel function and I use it all the time.
This should work as well
require './test2.rb'
puts "hello"
Comments
There are some explanation how you can solve your problem, but not what is going wrong.
With ruby test2.rb test1.rb you call the ruby script with the parameter test1.rb.
You have access to the parameters in the constant ARGV.
An example with this script:
puts "test"
puts 'ARGV= %s' % ARGV
The result when you call it:
C:\Temp>ruby test.rb test2.rb
test
ARGV= test2.rb
So you could also write a program like:
require_relative ARGV.first
The first parameter defines a script to be loaded.
Or if you want to load many scripts you could use:
ARGV.each{|script| require_relative script }
ruby -h: "Usage: ruby [switches] [--] [programfile] [arguments]". So the ruby command takes a single program file, not multiple.