Class: Fatbundle::Packager

Inherits:
Object
  • Object
show all
Defined in:
lib/fatbundle/packager.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Packager

Returns a new instance of Packager.



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# File 'lib/fatbundle/packager.rb', line 6

def initialize
  @files = {}
end

Instance Method Details

#collect(path) ⇒ Object 



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# File 'lib/fatbundle/packager.rb', line 52

def collect(path)
  base = Pathname.new(path)
  Dir["#{path}/**/*.rb"].each do |file|
    name = Pathname.new(file).relative_path_from(base)
    @files[name.sub(/\.rb$/, '').to_s] ||= File.read(file)
  end
end

#pack ⇒ Object 



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# File 'lib/fatbundle/packager.rb', line 10

def pack
  # assuming it's running under bundler already
  Bundler.load.specs.each do |spec|
    unless spec.extensions.empty?
      warn "Can't package C extension #{spec.name}"
      next
    end
      
    spec.load_paths.each do |path|
      warn "Packing #{spec.name} from #{spec.gem_dir}"
      collect(path)
    end
  end

  preamble = "    module Fatbundle\n      FILES = \#{@files.inspect}\n      LOADED = []\n    end\n\n    module Kernel\n      alias original_require require\n      def require(file)\n        if Fatbundle::LOADED.include?(file)\n          return true\n        end\n\n        if Fatbundle::FILES[file]\n          Fatbundle::LOADED << file\n          return eval(Fatbundle::FILES[file], TOPLEVEL_BINDING)\n        end\n\n        warn \"File '\\\#{file}' not found in Fatbundle, falling back to original require\" if ENV['FATBUNDLE_DEBUG']\n        original_require(file)\n      end\n    end\n               \n  EOF\n\n  puts preamble.gsub /^ {8}/, ''\nend\n"