Quick ruby script to download all cookbooks (all versions) from a Chef server.

download_all_chef_cookbooks.rb

#!/usr/bin/env ruby

cookbook_list = `knife cookbook list -a`.split("\n")

cookbook_list.each do |line|
  line.strip!

  line.match(/^([a-z0-9]+\-[a-z0-9-]+|\w+)\s+(\d\.\d\.\d|.+)$/)
  name     = $1
  versions = $2

  versions_array = versions.split("  ")

  versions_array.each do |version|
    if File.directory?("cookbooks_archived/#{name}-#{version}")
      puts "Skipping #{name}, version #{version}. Cookbook exists."
    else
      puts "Downloading #{name}, version #{version}"
      `knife cookbook download #{name} #{version} -d cookbooks_archived`
    end
  end
end

If cookbook has - instead of _ its not matching
for ex: testing_ca-certs. may be need to update regex?

getting error, can u pls help here
cookbook.rb:12:in block in <main>': undefined method split' for nil:NilClass (NoMethodError)
from cookbook.rb:6:in each' from cookbook.rb:6:in

'