execute

# File lib/rubygems/commands/lock_command.rb, line 68
  def execute
    say "require 'rubygems'"

    locked = {}

    pending = options[:args]

    until pending.empty? do
      full_name = pending.shift

      spec = Gem::Specification.load spec_path(full_name)

      if spec.nil? then
        complain "Could not find gem #{full_name}, try using the full name"
        next
      end

      say "gem '#{spec.name}', '= #{spec.version}'" unless locked[spec.name]
      locked[spec.name] = true

      spec.runtime_dependencies.each do |dep|
        next if locked[dep.name]
        candidates = dep.matching_specs

        if candidates.empty? then
          complain "Unable to satisfy '#{dep}' from currently installed gems"
        else
          pending << candidates.last.full_name
        end
      end
    end
  end