Fetch gem file from Gemfile.lock for can not connect gem server.

gem_fetcher.rb

# coding: utf-8
# ex) ruby gem_fetcher.rb #{TARGET_Gemfile.lock}

INSTALL_REGEXP = /^    ([a-zA-Z].+) ¥((.+)¥)$/

open(ARGV[0]).each_line do |line|
  if match_data = INSTALL_REGEXP.match(line).to_a and !match_data.empty?
    gem_file_name = match_data[1]
    gem_versin = match_data.last
    system "gem fetch #{gem_file_name} -v #{gem_version}"
  end
end