clonus.rb

#!/usr/bin/env ruby
require 'rubygems'
require 'active_support'
require 'yaml'
require 'fileutils'
require 'pathname'

RootPath = Pathname.new('/Volumes/space/github_mirror')
GithubInfo = YAML.load_file(RootPath.join('the_parts_horror.yml'))
  
def make_with_the_awesome(*args)
  command = args.join(' ')

  if command.nil?
    puts "No command given, just cloning any repos not already on disk"
  end

  FileUtils.cd(RootPath) do

    GithubInfo.each do |username, repos|
      repos.each do |repo|

        repo_path = "#{username}-#{repo}"

        if File.exist?(repo_path)
          FileUtils.cd(repo_path) do
            ICommandTheTo command, repo_path 
          end
        else
          clone_url = "git://github.com/#{username}/#{repo}.git"
          ICommandTheTo "git clone #{clone_url} #{repo_path} --quiet"
        end

      end
    end

  end
end

def ICommandTheTo(command, repo_path=nil)
  return if command.blank?
  path = repo_path ? " in #{repo_path}" : nil
  puts "Executing '#{command}'#{path}"
  puts '-' * 40
  system command
  puts
end

make_with_the_awesome(ARGV)

gistfile3.sh

# Now you can just run it to clone all the defined repos:
ruby clonus.rb 

# Want to update?
ruby clonus.rb git pull

# Arbitrary command?
ruby clonus.rb ls -l

the_parts_horror.yml

---
280north:
  - aristo
actionrails:
  - modporter
ahoward:
  - main
  - testy
alloy:
  - kicker