IMHO you are being "helped" by the windows command processor. I think it
treats whitespace as meaningless. What you would end up with is ...-cacheDir
-dt... which the command processor will reduce to ...-cacheDir -dt...
Try typing the command on the command line exactly like it would be
presented by Ant and you should see the same results.
My suggestion would be to pass the ${my.property} argument as a keyword and
value then base the programs behavior on the value of the keyword parameter.
This should work in all os.
HTH Bill
-----Original Message-----
From: Martin Senger [mailto:[EMAIL PROTECTED]
Sent: Thursday, September 01, 2005 1:37 AM
To: Ant Users List
Subject: Re: Empty arguments on the command-line under windows
Hi,
>
> If you run ANT in verbose mode (-v) what does it output as the string
> that is generated...?
>
This is how it look underw windows:
[testing] Executing 'C:\Program Files\Java\jre1.5.0_04\bin\java.exe' with
arguments:
[testing] '-classpath'
[testing] 'C:\Documents and settings\martin\....jar'
[testing] 'TestArgs'
[testing] '-cacheDir'
[testing] ''
[testing] '-dt'
[testing]
[testing] The ' characters around the executable and arguments are
[testing] not part of the command.
[testing] 0: -cacheDir
[testing] 1: -dt
And this is how it looks under linux:
[testing] Executing '/usr/local/j2sdk1.4.2_08/jre/bin/java' with
arguments:
[testing] '-classpath'
[testing] '/home/senger/....jar'
[testing] 'TestArgs'
[testing] '-cacheDir'
[testing] ''
[testing] '-dt'
[testing]
[testing] The ' characters around the executable and arguments are
[testing] not part of the command.
[testing] 0: -cacheDir
[testing] 1:
[testing] 2: -dt
And this is the Ant task (I have already posted this in my previous
email, sorry for the repetition):
<property name="my.property" value=""/>
<java classname="TestArgs" taskname="testing"
classpathref="build.classpath" fork="true" failonerror="true">
<arg value="-cacheDir"/>
<arg value="${my.property}"/>
<arg value="-dt"/>
</java>
So my (sad) conclusion is that I must write my build.xml conditionally
for various OS's. That's also what Antoine suggested:
> you can, using the condition task, set registry.cache.dir to
> "" only when running under windows.
>
Is this usual with Ant and OS-dependency? This is the first time I am
forced to be switching between OS's so I can't say.
Many thanks for your help and suggestions. At least I know now how to
solve the problem. (But still, I think I am going to look into Ant's sources
why it is like it is... )
Cheers,
Martin
--
Martin Senger
email: [EMAIL PROTECTED]
skype: martinsenger
consulting for:
International Rice Research Institute
Biometrics and Bioinformatics Unit
DAPO BOX 7777, Metro Manila
Philippines, phone: +63-2-580-5600 (ext.2324)
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