# outofdate |

## Description

Compare timestamps of files and set the value of a variable depending on the result.

## Parameters

source
  Description: filename

  Domain: Valid filename pointing to existing file

  Default: -

target
  Description: target file to compare to

  Domain: Valid filename

  Default: -

variable
  Description: variable which reflects the result of the comparison

  Domain: valid variable name

  Default: -

true_value
  Description: result value of positive comparison

  Domain: -

  Default: true

false_value
  Description: result value of negative comparison

  Domain: -

  Default: false

## RNG Specification

      <define name="outofdate">
        <element name="outofdate">
          <ref name="dir_if_unless"/>
          <choice>
            <group>
              <attribute name="source"/>
              <attribute name="target"/>
            </group>
            <ref name="fileset"/>
          </choice>
          <attribute name="variable"/>
          <optional>
            <attribute name="true_value"/>
          </optional>
          <optional>
            <attribute name="false_value"/>
          </optional>
        </element>
      </define>

## Examples

      <outofdate
        variable="generate"
        source="${gepp_in_dir}/${gepp_file}.ge"
        target="${gepp_out_dir}/${gepp_file}.e"
      />

      <outofdate variable="generate" dir="${GOBO}/library/kernel">
        <fileset directory="." include="@(**/*.ge)">
          <map type="glob" from="*.ge" to="${GOBO}/example/geant/tmp/*.e">
            <map type="flat"/>
          </map>
        </fileset>
      </outofdate>

      <outofdate variable="generate">
        <fileset directory=".">
          <include name="outofdate.eant"/>
          <include name="build.eant"/>
          <map type="merge" from="*" to="${gepp_out_dir}/toto.txt"/>
        </fileset>
      </outofdate>

      <outofdate variable="generate" dir="${GOBO}/library/kernel">
        <fileset directory=".">
        <include name="${gepp_in_dir}/${gepp_file}.ge"/>
        <include name="${GOBO}/example/geant/misc/outofdate.eant)"/>
        <map type="glob" from="*.ge" to="${gepp_out_dir}/*.e">
          <map type="flat"/>
        </map>
        </fileset>
      </outofdate>