How can I require other module?

Ruby
1

My ruby script and module script are in the same directory. I print the
$: variable and found the current directory “.” is in there. But I
always get the error: no such file to load.

What is the problem?

2

2008/8/28 Zhao Yi [email protected]

My ruby script and module script are in the same directory. I print the
$: variable and found the current directory “.” is in there. But I
always get the error: no such file to load.

What is the problem?

Would help if you posted your code, but I’ll hazard a guess. I usually
require files relative to the current one like this:

require File.dirname(FILE) + ‘/my_module’

The value of File.dirname(FILE) is always the path of the directory
containing the currently executing file.

3

In article [email protected],
Zhao Yi [email protected] wrote:

My ruby script and module script are in the same directory. I print the
$: variable and found the current directory “.” is in there. But I
always get the error: no such file to load.

Are you executing the script from the same directory? Having “.” in
RUBY_PATH only means that your “current” directory will be checked, not
the one actually hosting the script.

If you are in “/tmp” and you have “/usr/local/lib/ruby:.” in RUBY_PATH
(aka $:) then, with bar.rb/foo.rb in $HOME

require “foo”

will make Ruby looking in “/usr/local/lib/ruby” and “/tmp”, not in
$HOME.

What you want is something like the following:

BASE_DIR = File.dirname(File.expand_path($0))

$: << BASE_DIR

require “foo”

Cheers,

4

Hi Robert and James,

Both of your code can solve my problem, thanks.