diff --git a/build.xml b/build.xml
new file mode 100644
index 0000000..8562bdb
--- /dev/null
+++ b/build.xml
@@ -0,0 +1,117 @@
+<project name="kohana" default="help" basedir=".">
+	<property environment="env"/>
+	<property name="repo" value="git@github.com:kohana/kohana.git"/>
+	<property name="branch" value="3.1.x"/>
+	<property name="tag" value="${env.TAG}"/>
+	<property name="submodules" value="system,modules/auth,modules/cache,modules/codebench,modules/database,modules/image,modules/oauth,modules/orm,modules/pagination,modules/unittest,modules/userguide"/>
+	<property name="release-excludes" value="**/.git,**/.git*,build.xml,phpunit.xml,DEVELOPERS.md,phpunitcc,code_coverage.xml,release-tag,TESTING.md,**/tests"/>
+
+	<!-- Clean up -->
+	<target name="help">
+		<echo message="USAGE"/>
+		<echo message="====="/>
+		<echo message="ant test       Run unit tests."/>
+		<echo message="ant test-log   Run unit tests with logging enabled."/>
+		<echo message="ant phpcs      Run phpcs."/>
+		<echo message="ant phpcs-log  Run phpcs with logging enabled."/>
+
+	</target>
+
+	<!-- Clean up -->
+	<target name="clean">
+		<delete dir="${basedir}/build"/>
+		<!-- Create build directories -->
+		<mkdir dir="${basedir}/build/coverage"/>
+		<mkdir dir="${basedir}/build/logs"/>
+		<mkdir dir="${basedir}/build/release"/>
+		<mkdir dir="${basedir}/build/code-browser"/>
+	</target>
+
+	<!-- Check if a tag has been supplied -->
+	<target name="tag-supplied">
+		<echo message="TODO: Check if tag has been supplied."/>
+	</target>
+
+	<!-- Check if a specific tag exists -->
+	<target name="tag-exists" depends="tag-supplied">
+		<echo message="TODO: Check if tag (${tag}) exists."/>
+	</target>
+	
+	<!-- Run unit tests -->
+	<target name="test">
+		<exec executable="phpunit" failonerror="true"/>
+	</target>
+
+	<!-- Run unit tests and generate junit.xml and clover.xml -->
+	<target name="test-log">
+		<exec executable="phpunit" failonerror="true">
+			<arg line="--coverage-html=${basedir}/build/coverage"/>
+			<arg line="--log-junit=${basedir}/build/logs/junit.xml"/>
+			<arg line="--coverage-clover=${basedir}/build/logs/clover.xml"/>
+		</exec>
+	</target>
+
+	<!-- Run PHP Code Sniffer -->
+	<target name="phpcs">
+		<exec executable="phpcs" failonerror="false">
+			<arg line="--standard=Kohana"/>
+			<arg line="--ignore=*.js,*.css,**/vendor/**"/>
+			<arg line="${basedir}"/>
+		</exec>
+	</target>
+
+	<!-- Run PHP Code Sniffer and generate checkstyle.xml -->
+	<target name="phpcs-log">
+		<exec executable="phpcs" failonerror="false" output="/dev/null">
+			<arg line="--standard=Kohana"/>
+			<arg line="--ignore=*.js,*.css,**/vendor/**"/>
+			<arg line="--report=checkstyle"/>
+			<arg line="--report-file=${basedir}/build/logs/checkstyle.xml"/>
+			<arg line="${basedir}"/>
+		</exec>
+	</target>
+
+	<!-- Run PHP Mess Detector and generate pmd.xml -->
+	<target name="phpmd-log">
+		<exec executable="phpmd">
+			<arg line="${basedir}" />
+			<arg line="xml" />
+			<arg line="codesize,unusedcode" />
+			<arg line="--exclude=**/vendor/**" />
+			<arg line="--reportfile ${basedir}/build/logs/pmd.xml" />
+		</exec>
+	</target>
+
+	<!-- Run PHP Copy/Paste Detector and generate pmd.xml -->
+	<target name="phpcpd-log">
+		<exec executable="phpcpd">
+			<arg line="--log-pmd ${basedir}/build/logs/pmd-cpd.xml ${basedir}" />
+		</exec>
+	</target>
+
+	<!-- Run PHP Depend and generate jdepend.xml -->
+	<target name="pdepend-log">
+		<exec executable="pdepend">
+			<arg line="--jdepend-xml=${basedir}/build/logs/jdepend.xml ${basedir}" />
+		</exec>
+	</target>
+
+	<!-- Run PHP CodeBrowser and generate output -->
+	<target name="phpcb-log">
+		<exec executable="phpcb">
+			<arg line="--log ${basedir}/build/logs --source ${basedir} --output ${basedir}/build/code-browser" />
+		</exec>
+	</target>
+
+	<!-- Hudson CI target -->
+	<target name="hudson">
+		<antcall target="test-log"/>
+		<parallel>
+			<antcall target="pdepend-log"/>
+			<antcall target="phpmd-log"/>
+			<antcall target="phpcpd-log"/>
+			<antcall target="phpcs-log"/>
+			<antcall target="phpcb-log"/>
+		</parallel>
+	</target>
+</project>