Vagrantfile

# NOTE: Grepping through ~/.vagrant.d/gems/specifications/ for installed versions isn't the way to do this
# TODO: Add Bundler/Berkshelf-like version management
# TODO: Try to use the Ruby equivalent (located in Vagrant's PluginCommand class) w/out OptParser
def plugin(name, version = nil, opts = {})
  puts "Inside of the plugin method: name: #{name}, version: #{version}, opts: #{opts}"
  @vagrant_home ||= opts[:home_path] || ENV['VAGRANT_HOME'] || "#{ENV['HOME']}/.vagrant.d"
  plugins = JSON.parse(File.read("#@vagrant_home/plugins.json"))

  if !plugins['installed'].include?(name) || (version && !version_matches(name, version))
    cmd = "vagrant plugin install"
    cmd << " --entry-point #{opts[:entry_point]}" if opts[:entry_point]
    cmd << " --plugin-source #{opts[:source]}" if opts[:source]
    cmd << " --plugin-version #{version}" if version
    cmd << " #{name}"

    result = %x(#{cmd})
    puts result

    result
  end
end

def version_matches(name, version)
  gems = Dir["#@vagrant_home/gems/specifications/*"].map { |spec| spec.split('/').last.sub(/\.gemspec$/,'').split(/-(?=[\d]+\.?){1,}/) }
  gem_hash = {}
  gems.each { |gem, v| gem_hash[gem] = v }
  puts gems.inspect
  puts gem_hash.inspect

  puts "Version #{gem_hash[name]} of #{name} installed."
  gem_hash[name] == version
end

plugin 'vagrant-berkshelf', '1.3.2'
plugin 'vagrant-omnibus'