Method: Bio::Command.mktmpdir

Defined in:
lib/bio/command.rb

.mktmpdir(prefix = 'd', tmpdir = nil, &block) ⇒ Object

Backport of Dir.mktmpdir in Ruby 1.9.

Same as Dir.mktmpdir(prefix_suffix) in Ruby 1.9 except that prefix must be a String, nil, or omitted.

Arguments:

  • (optional) prefix: String



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# File 'lib/bio/command.rb', line 367

def mktmpdir(prefix = 'd', tmpdir = nil, &block)
  prefix = prefix.to_str
  begin
    Dir.mktmpdir(prefix, tmpdir, &block)
  rescue NoMethodError
    suffix = ''
    # backported from Ruby 1.9.0.
    # ***** Below is excerpted from Ruby 1.9.0's lib/tmpdir.rb ****
    # ***** Be careful about copyright. ****
    tmpdir ||= Dir.tmpdir
    t = Time.now.strftime("%Y%m%d")
    n = nil
    begin
      path = "#{tmpdir}/#{prefix}#{t}-#{$$}-#{rand(0x100000000).to_s(36)}"
      path << "-#{n}" if n
      path << suffix
      Dir.mkdir(path, 0700)
    rescue Errno::EEXIST
      n ||= 0
      n += 1
      retry
    end

    if block_given?
      begin
        yield path
      ensure
        remove_entry_secure path
      end
    else
      path
    end
    # ***** Above is excerpted from Ruby 1.9.0's lib/tmpdir.rb ****
  end
end