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Subject: RE: Using command line arguments
Date: Thu, 16 Sep 2004 13:23:48 -0500
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From: "Satish Jeejula" <Satish_Jeejula@irco.com>
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Jeff,

How can pass the value from command line to the property in build file?

In my example, "deleteBuildDir=true" should be copied to the property in
the build file. Also the 'if' attribute checks to the property is set or
not. It does not check to see if the value of the property is true or
false.

But if I can figure out a way to take the command-line and set the
property at run time, it should work.

Thanks,
Satish

-----Original Message-----
From: Jeff Davidson [mailto:JeffD@rocketgaming.com] 
Sent: Thursday, September 16, 2004 1:13 PM
To: Ant Users List
Subject: RE: Using command line arguments

Satish,

You want to investigate the if="${property}" attribute of the <target/>
element.  That attribute specifies that the target should only run if
the given property is defined.  (i.e. by your command-line argument)

http://ant.apache.org/manual/using.html#targets

Regards,
~Jeff

-----Original Message-----
From: Satish Jeejula [mailto:Satish_Jeejula@irco.com] 
Sent: September 16, 2004 11:08
To: user@ant.apache.org
Subject: Using command line arguments

Hi All,
 
I just started learning ANT tool. I have a simple build file that
compiles java file into a build directory successfully. The build file
right now deletes the build directory every time it runs. I would like
to change it such a way so that the build directory is deleted only when
user specifies it as command-line argument.
 
e.g.: ant -f compile.xml compile -DdeleteBuildDir=true  ----> should
delete the build directory
e.g.: ant -f comile.xml compile ----> should not delete the build
directory.
 
I am thinking of creating another target which deletes the directory.
Then execute that target only when this command-line argument is passed.
 
Please let me know if this can achieved and if so, any clue or hints
will help me.
 
Thanks,
Satish


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