How to require a Ruby gem directly from its path? -

in order work rubyzip installed gems:

gem install --local rubyzip-1.1.7.gem   gem install --local zip-zip-0.3.gem 

in code call gems using require method:

  require 'zip/zip'    require 'zip/filesystem' 

i want use require load gems directly location on machine.

i want somthing this:

 require 'path_to_my_zip_gem' 

where path_to_my zip_gem contains gem files

basically, it's because require method loads files name paths listed in $: or $load_path

"if filename not resolve absolute path, searched in directories listed in $load_path ($:)."

http://ruby-doc.org/core-2.2.2/kernel.html#method-i-require

if want require gem "local" path require_relative method since can specify path relative requiring file’s path. @ official documentation further details:

http://ruby-doc.org/core-2.2.2/kernel.html#method-i-require_relative