If I understand the problem correctly, you could use a condition:
<condition property="targetExists">
<typefound name="${targetName}"/>
</condition>
I've used this to check for a macrodef, not sure about targets?
Regards,
Chris Holman
-----Original Message-----
From: Vimil Saju [mailto:vimils...@yahoo.com]
Sent: 03 November 2011 16:02
To: Steve Amerige; Ant Users List
Subject: Re: Checking if a Target Exists
Here is an example, I havent tested it though
<scriptdef name="hastarget" language="javascript">
<attribute name="targetname" />
<attribute name="property" />
<![CDATA[
var targetname = attributes.get("property");
if(project.getTargets().containsKey(targetname)) {
project.setProperty(attributes.get("property"), "true");
}
]]>
</scriptdef>
the scriptdef can be then invoked as folows
<hastarget targetname="mytarget" property="targetExists"/>
the property 'targetExists' will be set to true if the target 'mytarget' is
present in the project. Otherwise it will not be set.
________________________________
From: Steve Amerige <steve.amer...@sas.com>
To: Ant Users List <user@ant.apache.org>; Vimil Saju <vimils...@yahoo.com>
Sent: Thursday, November 3, 2011 7:27 AM
Subject: Re: Checking if a Target Exists
Hi Vimil,
Thanks for the feedback. Any specifics on just how to do what you
mention (even if untested)?
Thanks again,
Steve Amerige
SAS Institute, Deployment Software Development
On 11/3/2011 9:55 AM, Vimil Saju wrote:
I think you can use the scriptdef task to do this. You can write a
script within the scriptdef object to access the methods of the project object.
The project object has methods to list the targets defined under the project,
which you can use to test if a given target exists.
Btw antcall does not launch a new jvm, it only reloads the build.xml.
________________________________
From: Steve Amerige <steve.amer...@sas.com> To: Ant Users List
<user@ant.apache.org> Sent: Thursday, November 3, 2011 4:52 AM
Subject: Checking if a Target Exists Hi all, I want to be able to check if a
target exists and hope you can help. I'm looking for a generic solution that
doesn't rely any knowledge of the target name to be checked. It is not
possible to modify the target code. And, I'd like to avoid any solutions that
cause the entire JVM to be loaded (e.g., as with antcall). My environment is
Ant 1.7 and allows for the use of Ant-Contrib and Groovy. Any ideas on how to
do this? Even better, any solutions anyone have to share?! Thanks,
Steve Amerige
SAS Institute, Deployment Software Development
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