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

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?

I use the gem [require_all][1] all the time, and it gets the job done with the following pattern in your requires:

require 'require_all'
require_all './lib/exceptions/'

[1]:

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like Miguel Fonseca said, but in ruby >= 2 you can do :

Dir[File.expand_path "lib/**/*.rb"].each{|f| require_relative(f)}

You should have a look at this [gem][1]. It is quite small so you can actually re-use the code instead of installing the whole gem.


[1]:

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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).

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

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

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.