How to find the path a Ruby Gem is installed at (i.e. Gem.lib_path c.f. Gem.bin_path)

Question

Gem.bin_path(\'cucumber\', \'cucumber\')

Will return the binary/executable\'s path. It seems there is no such function to return the library path.

Answer 1

Try using bundle show cucumber.

Which, from looking at the source of bundler does something like:

spec = Bundler.load.specs.find{|s| s.name == name }
spec.full_gem_path

You are using bundler, right?