class OpsWorks::Commands::FileUtil

Public Class Methods

backup(source) click to toggle source
# File lib/opsworks/commands/file_util.rb, line 9
def self.backup (source)
  if File.exists? source
    base_name = source + ".backup"
    if File.exists? base_name
      number = 0
      backup = "#{base_name}-#{number}"
      while base_name.class.exists? backup
        backup = "#{base_name}-#{number += 1}"
      end
    else
      backup = base_name
    end

    FileUtils.cp_r(source, backup)
  end
end
update_file(f, new_contents) click to toggle source
# File lib/opsworks/commands/file_util.rb, line 26
def self.update_file (f, new_contents)
  options = Trollop::options

  old_contents = (File.exists? f) ? File.read(f) : ""

  File.open(f, "w") do |file|
    unless old_contents == ""
      file.puts old_contents.gsub(
        /\n?\n?#{SSH_PREFIX}.*#{SSH_POSTFIX}\n?\n?/m,
        ''
      )
    end
    file.puts new_contents
  end
end