How to split ruby code into multiple files

ruby-talk
1

Hi guys,

my ruby code is now a long file and I'd like to split it into different
smaller files so that I could reuse them in different programs and make
my original code smaller at the same time.

One file should be used as the master and will reference the code of the
other files.

Is it feasible? Do I have to create some sort of a #include command or
create function objects (I just need a code split, I do not want to
create objects).

thank you.

···

--
Posted via http://www.ruby-forum.com/.

2

Cedric Vicenti wrote:

Hi guys,

my ruby code is now a long file and I'd like to split it into different
smaller files so that I could reuse them in different programs and make
my original code smaller at the same time.

One file should be used as the master and will reference the code of the
other files.

Is it feasible? Do I have to create some sort of a #include command or
create function objects (I just need a code split, I do not want to
create objects).

thank you.

Use the require method to require individual files.

···

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3

You should create Modules and allow them to be mixins to your Classes
via the "include" word. Example:

Module M
def some_func
  "I am some_func"
end
end

class A
  include M
end

foo = A.new
puts a.report

If "Module M" were in its own file, you coud then just "require" that
file, for instance.

-- Thomas Adam

···

On 20/10/2007, Cedric Vicenti <ced_dude@hotmail.com> wrote:

Hi guys,

my ruby code is now a long file and I'd like to split it into different
smaller files so that I could reuse them in different programs and make
my original code smaller at the same time.

One file should be used as the master and will reference the code of the
other files.

Is it feasible? Do I have to create some sort of a #include command or
create function objects (I just need a code split, I do not want to
create objects).

4

Cedric Vicenti wrote:

Hi guys,

my ruby code is now a long file and I'd like to split it into different
smaller files so that I could reuse them in different programs and make
my original code smaller at the same time.

1) Here's a simple scheme:

my_lib.rb

···

--------
def greet
  puts "hello world"
end

def show(num)
  puts num
end

some_program.rb
---------------
require 'my_lib.rb'

greet #hello world
show(10) #10

But doing it that way can cause problems in this situation:

some_program.rb
---------------
require 'my_lib.rb'

def greet()
  puts "hi"
end

greet #hi
show(10) #10

The greet method in some_program.rb hides the greet method in my_lib.rb.
So you can do this instead:

my_lib.rb
--------
module Lib
  def Lib.greet
    puts "hello world"
  end

  def Lib.show(num)
    puts num
  end
end

some_program.rb
---------------
require 'my_lib.rb'

def greet()
  puts "Hi"
end

Lib.greet
Lib.show(10)

greet

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5

Would this be sorta equivalent to creating a package in Java?

-Thufir

···

On Sun, 21 Oct 2007 03:49:25 +0900, Thomas Adam wrote:

You should create Modules and allow them to be mixins to your Classes
via the "include" word.

6

Ish. But unlike packages, you get a whole lot more with the use of
Modules. I certainly wouldn't try and liken them to packages though.

-- Thomas Adam

···

On 21/10/2007, Thufir <hawat.thufir@gmail.com> wrote:

On Sun, 21 Oct 2007 03:49:25 +0900, Thomas Adam wrote:

> You should create Modules and allow them to be mixins to your Classes
> via the "include" word.

Would this be sorta equivalent to creating a package in Java?