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From Shawn Castrianni <Shawn.Castria...@halliburton.com>
Subject RE: how to run two exec tasks within the same command shell
Date Fri, 20 Feb 2009 15:59:13 GMT
Out of curiosity, is it even possible to fix ANT to prevent this workaround?  ANT is Java based,
so it is a general Java question, "Can Java launch a single process and then feed commands
to that same process so that subsequent commands are affected by the prior commands?"  If
it isn't even possible to do this in Java, then I don't have to bother submitting an enhancement
request to ANT.  This would also solve my other problem which I posted a few days ago about
running a series of setupEnv.bat commands before invoking a Java command.

---
Shawn Castrianni

-----Original Message-----
From: Jan.Materne@rzf.fin-nrw.de [mailto:Jan.Materne@rzf.fin-nrw.de] 
Sent: Friday, February 20, 2009 3:14 AM
To: user@ant.apache.org
Subject: AW: how to run two exec tasks within the same command shell

>the two executable file, one is called "setENV.cmd", the other is
called "doThings.exe". 
>in the windows command console, the "setENV.cmd" is used to setup the
>environment, and it must be run first, then the "doThings.exe" can be
run.
>or not, "doThings.exe" can't work. the manual operation works well,
because
>we can type the two commands within the SAME command console. 
>but while i run them in the ant script by exec task, there is problem.,
the
>build.xml snippet is as follow: 
>
><target name="deploy"> 
><exec executable="setENV.cmd" /> 
><exec executable="doThings.exe"> 
><arg value="......" /> 
><arg value="......" /> 
></exec> 
></target> 

>
>while i execute the target, i am sure the "setENV.cmd" is run 
>well, but the "doThings.exe" can't work well, 
>that means the two exec tasks are not run within the same 
>command shell, who can tell me how to config the ant to run the two
exec tasks 
>within the same shell? 


<exec> starts a new thread/process. Therefore you cant process two
'executables' in the 
same <exec>.
What you could do is a workaround:
- create a batch file with all invokations
- call the batch


Jan

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