buildVersion.xml

<?xml version="1.0" encoding="utf-8"?>
<project name="StarImageLib_BuildVersion" default="displayVersion">

	<target name="incrementMajor">
		<antcall target="checkForDefaults"/>
		<propertyfile file="build.version">
			<entry key="major" type="int" default="0" operation="+"/>
		</propertyfile>
		<property file="build.version"/>
		<echo message="Incremented to version ${major}.${minor}"/>
	</target>

	<target name="incrementMinor">
		<antcall target="checkForDefaults"/>
		<propertyfile file="build.version">
			<entry key="minor" type="int" default="0" operation="+"/>
		</propertyfile>
		<property file="build.version"/>
		<echo message="Incremented to version ${major}.${minor}"/>
	</target>

	<target name="displayVersion">
		<antcall target="checkForDefaults"/>
		<property file="build.version"/>
		<echo message="Version is currently ${major}.${minor}"/>
	</target>

	<target name="checkForDefaults">
		<propertyfile file="build.version">
			<entry key="major" type="int" default="0"/>
			<entry key="minor" type="int" default="0"/>
		</propertyfile>
	</target>

</project>