debundler 842 Bytes
#!/usr/bin/env ruby


cache = '/tmp/debundler.' + ENV['USER'] + '.cache.yaml'
unless File.exists?(cache)
  unless system("apt-file search /usr/share/rubygems-integration/1.9.1 > #{cache}")
    exit 1
  end
end

$gems = []
def source(s)
end
def group(g)
  yield
end
def gem(n, v = nil)
  $gems << n
end
load './Gemfile'

require 'yaml'
deb2gem = YAML.load_file(cache)
gem2deb = {}
deb2gem.each do |package,spec|
  gem_info = File.basename(spec).sub(/\.gemspec$/, '').split('-')
  gem_version = gem_info.pop
  gem_name = gem_info.join('-')
  gem2deb[gem_name] = package
end

packages = []
$gems.each do |g|
  package = gem2deb[g]
  if package
    packages << package
  else
    puts "E: gem #{g} not found"
    not_found += 1
  end
end

if packages.size == $gems.size
  system("sudo apt-get -y install #{packages.join(" ")}")
else
  exit 1
end