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Posted to user@ant.apache.org by "Dr. Michael Lipp" <Mi...@danet.de> on 2005/06/15 17:18:48 UTC
How to execute a subtask conditionally if used several times
Hi,
I have a target that produces an output file based on an input file. I
invoke this target several times using antcall with different pairs of
input and output files (using <antcall><param ...>).
As an optimization, I want to do the generation only if the input file
is newer than the output file. In order to do this, I have to set a
property with <uptodate>. Of course, I would like to do this in my
antcall-ed target to avoid duplication of code.
But how can I reset the property once it has been set in my
"sub-target"? Once a property is set, it cannot be changed. So if the
first antcall causes e.g. "isUpToDate" to be set, all subsequent
antcalls will be executed as well.
Any solution?
Regards,
Michael
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Re: How to execute a subtask conditionally if used several times
Posted by "Alexey N. Solofnenko" <A....@mdl.com>.
You can put <antcall> inside <apply>.
- Alexey.
Dr. Michael Lipp wrote:
> Hi,
>
> I have a target that produces an output file based on an input file. I
> invoke this target several times using antcall with different pairs of
> input and output files (using <antcall><param ...>).
>
> As an optimization, I want to do the generation only if the input file
> is newer than the output file. In order to do this, I have to set a
> property with <uptodate>. Of course, I would like to do this in my
> antcall-ed target to avoid duplication of code.
>
> But how can I reset the property once it has been set in my
> "sub-target"? Once a property is set, it cannot be changed. So if the
> first antcall causes e.g. "isUpToDate" to be set, all subsequent
> antcalls will be executed as well.
>
> Any solution?
>
> Regards,
>
> Michael
>
--
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home: http://trelony.cjb.net/
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