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Ruby

Posted by R C
R C
30 Points

Bundler gem builder prebuilts module Foo in my gem root, breaking my executable. Why does this happen?

I am working with bundler and reproducing the basic gem found on ruygems, to gain a better grasp running gems as executables. I am reproducing only the necessary code here for succinctness' sake.

bundle gem foo creates the necessary gem tree. However in the skeleton of lib/foo.rb

```module Foo class Error < StandardError; end

working code here

end```

In irb, when I run ruby -Ilib ./bin/foo, irb throws out an error: /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in 'require': cannot load such file -- foo (LoadError) from /usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in 'require' from ./bin/foo:3:in'

I DO get my desired result (matching the result of <b>hola mundo</b>) when I remove the module Foo and class Error in lib/foo.rb.

My 2 interconnected questions are: 1 What benefit is there in a module prebuilt into lib/foo.rb?

and 2 Why does the module break my executable? (I run bin/foo and irb spit out error)