Java Tutorial/Ant/Condition

and condition in fileset

<?xml version="1.0"?>
<project name="Apache Ant Properties Project" basedir=".">
  <fileset dir="${src.web}/pages">
    <and>
      <modified>
        <param name="cache.cachefile" value="custom.properties"/>
        <param name="algorithm.algorithm" value="SHA"/>
      </modified>
      <type type="file"/>
    </and>
  </fileset>
</project>

Check condition

<?xml version="1.0"?>
<project name="Apache Ant Properties Project" basedir=".">
  
  <condition property="is.windows">
    <os family="windows"/>
  </condition>
  <condition property="is.unix">
    <os family="unix"/>
  </condition>
  <target name="do-windows" if="is.windows">
    <echo message="This is Windows"/>
  </target>
  <target name="do-unix" if="is.unix">
    <echo message="This is Unix"/>
  </target>

</project>

Compile if upto date

<?xml version="1.0"?>
<project name="Apache Ant Properties Project" basedir=".">
  
  <fileset dir="." id="uptodate.id">
    <include name="src/jstl/One.java"/>
  </fileset>
  <condition property="uptodate">
    <uptodate>
      <srcfiles refid="uptodate.id"/>
      <mapper type="merge" to="./One.java"/>
    </uptodate>
  </condition>
  <target name="compile" if="uptodate">
    <echo message="File changed: ${uptodate}"/>
  </target>

</project>

Condition properties

<?xml version="1.0"?>
<project name="Apache Ant Properties Project" basedir=".">
  
  <fileset dir="." id="uptodate.id">
    <include name="src/jstl/One.java"/>
  </fileset>
  <condition property="is.fileset">
    <isreference refid="uptodate.id" type="fileset"/>
  </condition>
  
  
  <target name="fileset-prepare">
    <echo message="Value of is.fileset = ${is.fileset}"/>
  </target>

</project>

or condition with containsregexp

<?xml version="1.0"?>
<project name="Apache Ant Properties Project" basedir=".">
  <fileset id="javadoc" dir="${src}">
    <include name="shared/**"/>
    <include name="stand-alone/**"/>
    <include name="web/java/**"/>
    <or>
      <containsregexp expression="Licensed under the Apache Licen[sc]e"/>
      <containsregexp expression="GNU GENERAL PUBLIC LICEN[SC]E"/>
    </or>
  </fileset>
</project>