<?xml version="1.0"?>

<!--
	description:

		"Outofdate Tasks"

	library: "Gobo Eiffel Ant"
	copyright: "Copyright (c) 2002, Sven Ehrke and others"
	license: "MIT License"
-->

<chapter xmlns="https://www.gobosoft.com/eiffel/gobo/documentation" id="outofdate_task">
<chapterinfo>
	<copyright>
		<year>2002-2005</year>
		<holder>Sven Ehrke</holder>
	</copyright>
	<author>
		<firstname>Sven</firstname><surname>Ehrke</surname>
	</author>
	<email>ericb@gobosoft.com</email>
	<date>7 July 2005</date>
</chapterinfo>

	<title>outofdate</title>

	<section id="outofdate_description">
		<title>Description</title>
		<para>
			Compare timestamps of files and set the value of a variable depending on the result.
		</para>
	</section>

	<section id="outofdate_parameters">
		<title>Parameters</title>

		<variablelist>
			<varlistentry>
				<term>source</term>
				<listitem>
					<para><emphasis>Description: </emphasis>filename</para>
				</listitem>
				<listitem>
					<para><emphasis>Domain: </emphasis>Valid filename pointing to existing file</para>
				</listitem>
				<listitem>
					<para><emphasis>Default: </emphasis>-</para>
				</listitem>
			</varlistentry>

			<varlistentry>
				<term>target</term>
				<listitem>
					<para><emphasis>Description: </emphasis>target file to compare to</para>
				</listitem>
				<listitem>
					<para><emphasis>Domain: </emphasis>Valid filename</para>
				</listitem>
				<listitem>
					<para><emphasis>Default: </emphasis>-</para>
				</listitem>
			</varlistentry>

			<varlistentry>
				<term>variable</term>
				<listitem>
					<para><emphasis>Description: </emphasis>variable which reflects the result of the comparison</para>
				</listitem>
				<listitem>
					<para><emphasis>Domain: </emphasis>valid variable name</para>
				</listitem>
				<listitem>
					<para><emphasis>Default: </emphasis>-</para>
				</listitem>
			</varlistentry>

			<varlistentry>
				<term>true_value</term>
				<listitem>
					<para><emphasis>Description: </emphasis>result value of positive comparison</para>
				</listitem>
				<listitem>
					<para><emphasis>Domain: </emphasis>-</para>
				</listitem>
				<listitem>
					<para><emphasis>Default: </emphasis>true</para>
				</listitem>
			</varlistentry>

			<varlistentry>
				<term>false_value</term>
				<listitem>
					<para><emphasis>Description: </emphasis>result value of negative comparison</para>
				</listitem>
				<listitem>
					<para><emphasis>Domain: </emphasis>-</para>
				</listitem>
				<listitem>
					<para><emphasis>Default: </emphasis>false</para>
				</listitem>
			</varlistentry>

		</variablelist>
	</section>

	<section id="outofdate_specification">
		<title>RNG Specification</title>

		<programlisting><![CDATA[
  <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>
]]>
	</programlisting>
	</section>

	<section id="outofdate_examples">
		<title>Examples</title>
	<programlisting><![CDATA[
  <outofdate
    variable="generate"
    source="${gepp_in_dir}/${gepp_file}.ge"
    target="${gepp_out_dir}/${gepp_file}.e"
  />

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

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

  <outofdate variable="generate" dir="${GOBO}/library/kernel">
    <fileset dir=".">
    <include name="${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>
]]>
	</programlisting>
	</section>

</chapter>
