Is it possible to recursively require all files in a directory in Ruby?

Question

I am working on an API that needs to load all of the .rb files in its current directory and all subdirectories. Currently, I am entering a new require statement for each file that I add but I would like to make it where I only have to place the file in one of the subdirectories and have it automatically added.

Is there a standard command to do this?

Answer 1

require "find"

Find.find(folder) do |file|
  next if File.extname(file) != ".rb"
  puts "loading #{file}"
  load(file)
end

This will recursively load each .rb file.

Answer 2

In this case its loading all the files under the lib directory:

Dir["#{File.dirname(__FILE__)}/lib/**/*.rb"].each { |f| load(f) }

Answer 3

def rLoad(dir)
    Dir.entries(dir).each {|f|
        next if f=='.' or f=='..'
        if File.directory?(f)
            rInclude(f)
        else
            load(f) if File.fnmatch('*.rb', f)
        end
    }
end

This should recursively load all .rb files in the directory specified by dir. For example, rLoad Dir.pwd would work on the current working directory.

Be careful doing this, though. This does a depth-first search and if there are any conflicting definitions in your Ruby scripts, they may be resolved in some non-obvious manner (alphabetical by folder/file name I believe).

Answer 4

You should have a look at this gem. It is quite small so you can actually re-use the code instead of installing the whole gem.