how to get files count in a directory using ruby

Question

using ruby how to get number of files in a given Directory,the file count should include count from recursive directories.

Eg: folder1(2 files) -----> folder2(4 files)

Answer 1

The fastest way should be (not including directories in count):

Dir.glob(File.join(your_directory_as_variable_or_string, '**', '*')).select { |file| File.file?(file) }.count

And shorter:

dir = '~/Documents'
Dir[File.join(dir, '**', '*')].count { |file| File.file?(file) }