Puppet::Type.newtype(:file_line) do

  desc <<-EOT
    Ensures that a given line is contained within a file.  The implementation
    matches the full line, including whitespace at the beginning and end.  If
    the line is not contained in the given file, Puppet will add the line to
    ensure the desired state.  Multiple resources may be declared to manage
    multiple lines in the same file.

    Example:

        file_line { 'sudo_rule':
          path => '/etc/sudoers',
          line => '%sudo ALL=(ALL) ALL',
        }
        file_line { 'sudo_rule_nopw':
          path => '/etc/sudoers',
          line => '%sudonopw ALL=(ALL) NOPASSWD: ALL',
        }

    In this example, Puppet will ensure both of the specified lines are
    contained in the file /etc/sudoers.

  EOT

  ensurable do
    defaultto :present
    newvalue(:present) do
      provider.create
    end
  end

  newparam(:name, :namevar => true) do
    desc 'arbitrary name used as identity'
  end

  newparam(:line) do
    desc 'The line to be appended to the path.'
  end

  newparam(:path) do
    desc 'File to possibly append a line to.'
    validate do |value|
      unless (Puppet.features.posix? and value =~ /^\//) or (Puppet.features.microsoft_windows? and (value =~ /^.:\// or value =~ /^\/\/[^\/]+\/[^\/]+/))
        raise(Puppet::Error, "File paths must be fully qualified, not '#{value}'")
      end
    end
  end

  validate do
    unless self[:line] and self[:path]
      raise(Puppet::Error, "Both line and path are required attributes")
    end
  end
end