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Date: Tue, 12 Aug 2008 19:17:25 +0300
From: Evgeny <evgeny.zislis@gmail.com>
To: "Ant Users List" <user@ant.apache.org>
Subject: Re: A way to create empty files
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References: <AGEOKPGDFJPLJMFEHFAGMEBDCAAA.jim.showalter@verizon.net>
	 <960253.67114.qm@web55108.mail.re4.yahoo.com>
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Oy, this looks complex ... but imho it's better than having multiple targets.
Thanks.

On Tue, Aug 12, 2008 at 6:13 PM, Matt Benson <gudnabrsam@yahoo.com> wrote:
> Or, barring all these other suggestions, you could
> just use Ant >= 1.7 and write:
>
> <touch>
>  <restrict>
>    <file file="filetotouch" />
>    <not
> xmlns="antlib:org.apache.tools.ant.types.resources.selectors">
>      <exists />
>    </not>
>  </restrict>
> </touch>
>
> Note that the componentdef addition to Ant 1.8 will
> obviate the need for the ns declaration of the not
> (and, by inheritance, the exists) element.
>
> Sorry for the delay in providing this solution,
> Matt
>
> --- Jim Showalter <jim.showalter@verizon.net> wrote:
>
>> You could also write a java program to add the
>> functionality and then add it in via taskdef.  The
>> downside is that your build file would not work on
>> other platforms unless you included the class file
>> that implements the task.
>>
>> Jim
>>
>>
>> -----Original Message-----
>> From: Evgeny [mailto:evgeny.zislis@gmail.com]
>> Sent: Tuesday, August 12, 2008 3:53 AM
>> To: Ant Users List
>> Subject: Re: A way to create empty files
>>
>>
>> It's not that I am worried it wont work, just too
>> many targets makes
>> it all messy. And then even when I myself try to
>> decipher what goes
>> where, I need to follow a huge tree of logic in
>> dependencies. Since
>> Ant is more of a functional language, I would rather
>> avoid all that
>> and just write one statement like <touch file="new"
>> dontchangetimestamponexistingfile=true"/> or
>> something.
>>
>> Ahh, well.
>>
>> On Mon, Aug 11, 2008 at 10:48 PM, EJ Ciramella
>> <ejciramella@upromise.com> wrote:
>> > Nope, you will have this additional target that
>> tests for availability,
>> > then your "touch" target will have an if/unless
>> (depending on how you
>> > configure your "availability" target) condition.
>> >
>> > This is typical.
>> >
>> > You shouldn't be too worried about many targets
>> springing up all over
>> > the place, as long as you don't provide a
>> description, they won't show
>> > during "ant -projecthelp" (which should be what
>> people are using to see
>> > what targets exist in a particular build file).
>> >
>> > -----Original Message-----
>> > From: Evgeny [mailto:evgeny.zislis@gmail.com]
>> > Sent: Monday, August 11, 2008 9:29 AM
>> > To: Ant Users List
>> > Subject: Re: A way to create empty files
>> >
>> > So there is no way to do this other than creating
>> an additional target
>> > with an "if" attribute?
>> >
>> > On Mon, Aug 11, 2008 at 3:09 PM, Kevin Jackson
>> <foamdino@gmail.com>
>> > wrote:
>> >> I think you want to look at the Available task
>> >>
>> >>
>>
> http://ant.apache.org/manual/CoreTasks/available.html
>> >>
>> >> Thanks,
>> >> Kev
>> >>
>> >>
>>
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