build.xml

<project name = "Rweixin" default = "install" basedir = ".">
	
	<property environment = "env" />
	<property name = "package.name" value = "Rweixin" />
	<property name = "r.home" value = "D:/Software/R/R-3.5.3" />
	<property name = "rtools.home" value = "C:/Rtools" />
	<property name = "path" value = "${r.home}/bin;${rtools.home}/bin;"/>
	<property name = "output.folder" value = "${basedir}/output/"/>

	<target name="clean">
		<delete dir="${output.folder}" failonerror = "false"/>
		<mkdir dir="${output.folder}/${package.name}"/>
		<copy todir="${output.folder}/${package.name}">
			<fileset dir="${basedir}">
				<include name="**"/>
			</fileset>
		</copy>
	</target>
	
	<target name ="build" depends="clean">
		<exec executable="${r.home}/bin/R" dir ="${output.folder}" failonerror = "true">
			<env key="Path" value="${path}"/>
			<arg value="CMD"/>
			<arg line ='build ${package.name}'/>
		</exec>
	</target>

	<target name ='install' depends ='build'>
		<exec executable="${r.home}/bin/R" dir ="${output.folder}" failonerror = "true">
			<env key="Path" value="${path}"/>
			<arg value="CMD"/>
			<arg line ='INSTALL --build ${package.name}'/>
		</exec>
	</target>
	
</project>