method

cache_update_path

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cache_update_path(uri, path = nil, update = true) public

Downloads uri to path if necessary. If no path is given, it just passes the data.

# File lib/rubygems/remote_fetcher.rb, line 305
  def cache_update_path uri, path = nil, update = true
    mtime = path && File.stat(path).mtime rescue nil

    data = fetch_path(uri, mtime)

    if data == nil # indicates the server returned 304 Not Modified
      return Gem.read_binary(path)
    end

    if update and path
      open(path, 'wb') do |io|
        io.flock(File::LOCK_EX)
        io.write data
      end
    end

    data
  end

cache_update_path

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