git-build.xml

<project name="Ant Build Script with Git Support">

	<macrodef name="git">
		<attribute name="command" />
		<attribute name="options" default="" />
		<attribute name="dir" default="" />
		<attribute name="failerror" default="false" />
		<element name="args" optional="true" />
		<sequential>
			<echo message="git dir @{dir}" />
			<echo message="git @{command}" />
			<exec executable="git" dir="@{dir}" failonerror="@{failerror}">
				<arg line="@{command} @{options}" />
				<args />
			</exec>
		</sequential>
	</macrodef>
	
	<macrodef name="git-checkout-local">
		<attribute name="branch" />
		<attribute name="dir" />
		<attribute name="options" default=""  />
		<attribute name="failerror" default="false" />
		<sequential>
			<git command="checkout" dir="@{dir}" options="@{options}" failerror="@{failerror}" >
				<args>
					<arg value="@{branch}" />
				</args>
			</git>
			<waitfor maxwait="15" maxwaitunit="second" timeoutproperty="build.timeout">
				<resourcecontains resource=".git/HEAD" substring="@{branch}" />
			</waitfor>
		</sequential>
	</macrodef>

	<macrodef name="git-tag">
		<attribute name="tagName" />
		<attribute name="dir" />
		<attribute name="options" default="-f" />
		<attribute name="failerror" default="false" />
		<sequential>
			<git command="tag" dir="@{dir}" options="@{options}" failerror="@{failerror}" >
				<args>
					<arg value="@{tagName}" />
				</args>
			</git>
		</sequential>
	</macrodef>

</project>