method

tmpdir

v2_2_9 - Show latest stable - 1 note - Class: Dir

tmpdir() public

Returns the operating system’s temporary file path.

# File lib/tmpdir.rb, line 20
  def self.tmpdir
    if $SAFE > 0
      @@systmpdir
    else
      tmp = nil
      [ENV['TMPDIR'], ENV['TMP'], ENV['TEMP'], @@systmpdir, '/tmp', '.'].each do |dir|
        next if !dir
        dir = File.expand_path(dir)
        if stat = File.stat(dir) and stat.directory? and stat.writable? and
            (!stat.world_writable? or stat.sticky?)
          tmp = dir
          break
        end rescue nil
      end
      raise ArgumentError, "could not find a temporary directory" unless tmp
      tmp
    end
  end

October 31, 2009

2 thanks

Don't forget to require 'tmpdir'

If you simply say Dir.tmpdir you might get a nice surprise:

irb> Dir.tmpdir
NoMethodError: undefined method `tmpdir' for Dir:Class

from (irb):1

Strangely, this method seems to be stored in a file that Ruby doesn’t require by default. Just require 'tmpdir' and all should be well.

irb> require 'tmpdir'
=> true
irb> Dir.tmpdir
=> "/var/folders/An/AnwlXPZFH2aRLCERERQDKE+++TI/-Tmp-"

tmpdir

Related methods

Don't forget to require 'tmpdir'