def activate(gem, autorequire, *version_requirements)
unless version_requirements.size > 0
version_requirements = [">= 0.0.0"]
end
unless gem.respond_to?(:name) && gem.respond_to?(:version_requirements)
gem = Gem::Dependency.new(gem, version_requirements)
end
matches = Gem.source_index.find_name(gem.name, gem.version_requirements)
report_activate_error(gem) if matches.empty?
if @loaded_specs[gem.name]
existing_spec = @loaded_specs[gem.name]
if ! matches.any? { |spec| spec.version == existing_spec.version }
fail Gem::Exception, "can't activate #{gem}, already activated #{existing_spec.full_name}]"
end
return false
end
spec = matches.last
if spec.loaded?
return false unless autorequire
result = spec.autorequire ? require(spec.autorequire) : false
return result || false
end
spec.loaded = true
@loaded_specs[spec.name] = spec
spec.dependencies.each do |dep_gem|
activate(dep_gem, autorequire)
end
if(spec.bindir) then
spec.require_paths << spec.bindir
end
spec.require_paths.each do |path|
$:.unshift File.join(spec.full_gem_path, path)
end
if autorequire && spec.autorequire then
Array(spec.autorequire).each do |a_lib|
require a_lib
end
end
return true
end