Module: Kernel

Defined in:
lib/minigems.rb

Instance Method Summary collapse

Instance Method Details

#gem(name, *versions) ⇒ Object 



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# File 'lib/minigems.rb', line 34

def gem(name, *versions)
  Gem.activate(name, *versions)
end

#gem_original_require ⇒ Object 



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# File 'lib/minigems.rb', line 40

alias :gem_original_require :require

#require(path) ⇒ Object

We replace Ruby’s require with our own, which is capable of loading gems on demand.

When you call require 'x', this is what happens:

  • If the file can be loaded from the existing Ruby loadpath, it is.

  • Otherwise, installed gems are searched for a file that matches. If it’s found in gem ‘y’, that gem is activated (added to the loadpath).

The normal require functionality of returning false if that file has already been loaded is preserved.



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# File 'lib/minigems.rb', line 55

def require(path) # :nodoc:
  gem_original_require path
rescue LoadError => load_error
  if File.basename(path).match(Gem::MiniGems::INLINE_REGEXP)
    return true # RubyInline dynamicly created .so/.bundle
  elsif path == 'Win32API' && !Gem.win_platform?
    raise load_error
  elsif load_error.message =~ /#{Regexp.escape path}\z/
    if !path.include?('/') && (match = Gem.find_name(path))
      Gem.activate_gem_from_path(match.first)
      return gem_original_require(path)
    elsif spec = Gem.searcher.find(path)
      Gem.activate(spec.name, "= #{spec.version}")
      return gem_original_require(path)
    end
  end
  raise load_error
end