Conditionalizing an exec task on something changed.

[ro...@elastica.com]

I'm guessing you cannot do this but I'd like to be able to only
execute my exec tasks if rule the determined it was necessary 
to compile something.

so

How can I not do the exec task if no .java files changed.

<target name="compile" depends="init,prepare">
	<mkdir dir="${outputDir}"/>
	<javac 
srcdir="${sourceDir}" destdir="${outputDir}" includes="**/*.java" verbose="true">

	<classpath>
		<pathelement
location="third_party/sun/servlet.jar"/>
		<pathelement
location="third_party/sun/jndi.jar"/>
		<pathelement
location="third_party/oracle/classes12_01.zip"/>
		<pathelement
location="third_party/oracle/ojsp.jar"/>
		<pathelement
location="third_party/cybersource/cdkjava3300.jar"/>
	</classpath>
	</javac>
		
	<exec executable="net" os="Windows NT">
		<arg value="stop"/>
		<arg value="JRun Default Server"/>
	</exec>
	<exec executable="net" os="Windows NT">
		<arg value="start"/>
		<arg value="JRun Default Server"/>
	</exec>
</target>

RE: Conditionalizing an exec task on something changed.

[Conor MacNeill <co...@ebinteractive.com.au>]

Robert,

Have you tried the uptodate task? Checkout the doc for it here
http://jakarta.apache.org/ant/jakarta-ant/docs/#uptodate

You may be able to setup something with it.

--
Conor MacNeill
conor@cortexebusiness.com.au
Cortex eBusiness 
http://www.cortexebusiness.com.au

> -----Original Message-----
> From: robert@elastica.com [mailto:robert@elastica.com]
> Sent: Wednesday, 1 November 2000 12:13
> To: ant-user@jakarta.apache.org
> Subject: Conditionalizing an exec task on something changed.
> 
> 
> I'm guessing you cannot do this but I'd like to be able to only
> execute my exec tasks if rule the determined it was necessary 
> to compile something.
> 
> so
> 
> How can I not do the exec task if no .java files changed.
> 
> <target name="compile" depends="init,prepare">
> 	<mkdir dir="${outputDir}"/>
> 	<javac 
> srcdir="${sourceDir}" destdir="${outputDir}" includes="**/*.java" 
> verbose="true">
> 
> 	<classpath>
> 		<pathelement
> location="third_party/sun/servlet.jar"/>
> 		<pathelement
> location="third_party/sun/jndi.jar"/>
> 		<pathelement
> location="third_party/oracle/classes12_01.zip"/>
> 		<pathelement
> location="third_party/oracle/ojsp.jar"/>
> 		<pathelement
> location="third_party/cybersource/cdkjava3300.jar"/>
> 	</classpath>
> 	</javac>
> 		
> 	<exec executable="net" os="Windows NT">
> 		<arg value="stop"/>
> 		<arg value="JRun Default Server"/>
> 	</exec>
> 	<exec executable="net" os="Windows NT">
> 		<arg value="start"/>
> 		<arg value="JRun Default Server"/>
> 	</exec>
> </target>
> 
> 
>