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<project>
  <!-- Your exisitng tasks if you have any -->
	<target name="-pre-build" >
		<antcall  target="set-version-using-file" />
	</target>
	
	<target name="set-version-using-file">
		<!-- Load properties from "version.properties" file -->				
		<property file="version.properties" />
		
		<replaceregexp file="AndroidManifest.xml" match="android:versionCode(.*)"
                               replace='android:versionCode="${Version.Code}"'/>
		<replaceregexp file="AndroidManifest.xml" match="android:versionName(.*)"
                               replace='android:versionName="${Version.Name}"'/>		
	</target>
	
	<target name="set-version-using-commandline-args">
		<!-- Load properties from "version.properties" file -->		
		<replaceregexp file="AndroidManifest.xml" match="android:versionCode(.*)"
                               replace='android:versionCode="${Version.Code}"'/>
		<replaceregexp file="AndroidManifest.xml" match="android:versionName(.*)"
                               replace='android:versionName="${Version.Name}"'/>		
	</target>
</project>