Stripping extensions without file operation

[Stefan Schulz <ss...@ivs.tu-berlin.de>]

Hello,

what I intend to do would look somewhat like this in ant:

  <mapper id="stripclass" type="glob" from="*.class" to="*"/>
  <fileset id="anID" dir="${somedir}">
    <include name="**/*Test.class"/>
    <mapper id="stripclass"/>
  </fileset>

Unfortunately, fileset does not support a nested mapper.

I do not want to copy any file, but use the fileset's entries later on
in various tasks.
Is there a simple or generic possibility to do so in ant or do
extensions exist to solve my problem?

Thanks for any help
Stefan


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Re: Stripping extensions without file operation

[Stefan Bodewig <bo...@apache.org>]

On Thu, 9 Jan 2003, Stefan Schulz <ss...@ivs.tu-berlin.de> wrote:
> Stefan Bodewig [mailto:bodewig@apache.org] wrote
>> On Thu, 9 Jan 2003, Stefan Schulz <ss...@ivs.tu-berlin.de> wrote:
>> 
>> > Unfortunately, fileset does not support a nested mapper.
>> 
>> It sort of does, take a look at the <present> selector.
> 
> If I am not wrong, this mapper only is used for the selector and
> does not modify the fileset.

Correct.

You'd select the files for your fuleset based on the presence of files
in a different fileset.

If this is not what you wanted, I must have misunderstood your
question.

Stefan

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RE: Stripping extensions without file operation

[Stefan Schulz <ss...@ivs.tu-berlin.de>]

Stefan Bodewig [mailto:bodewig@apache.org] wrote
> On Thu, 9 Jan 2003, Stefan Schulz <ss...@ivs.tu-berlin.de> wrote:
> 
> > Unfortunately, fileset does not support a nested mapper.
> 
> It sort of does, take a look at the <present> selector.

If I am not wrong, this mapper only is used for the selector and does
not modify the fileset.

Stefan


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Re: Stripping extensions without file operation

[Stefan Bodewig <bo...@apache.org>]

On Thu, 9 Jan 2003, Stefan Schulz <ss...@ivs.tu-berlin.de> wrote:

> Unfortunately, fileset does not support a nested mapper.

It sort of does, take a look at the <present> selector.

Stefan

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RE: Stripping extensions without file operation

[Stefan Schulz <ss...@ivs.tu-berlin.de>]

From: Stefan Bodewig [mailto:bodewig@apache.org] 
> On Thu, 9 Jan 2003, Stefan Schulz <ss...@ivs.tu-berlin.de> wrote:
> [..]
> Or I've not been focussed, sorry.  <fileset>'s are always a 
> set of existing files, so your "but fileset doesn't support 
> nested mappers" somehow triggered the misunderstanding.  You 
> don't want a fileset but a set of names.

Correct. So it is a misues. Even more, I think too generic here.

> > What I like to do: - read a set of files from a directory - 
> create a 
> > set from above set containing the same but modified elements
> 
> And do with this set ... what?

Apply the set or each entry to a sequence of other (custom) tasks.

> I don't see a built-in way for this general description, but 
> maybe there is a way to achieve what you want 
> (<pathconvert>?) - depends on your needs.

Actually, the other tasks need the class name rather than the file name.
So I already use <pathconvert> for / to . conversion.
Unfortunately, the <map> task only is build for prefixes whereas I have
postfixes to map.
Of course, one could build the custom tasks to do the conversion
internally. So, maybe I am thinking to object oriented here.

Maybe <property> should support <mapper> to manipulate given values. Or
being explicit, having a <propertyconvert>. Seems I have to write such a
thing myself or integrate into the other custom tasks. ;)

Thanks anyway.

Stefan


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Re: Stripping extensions without file operation

[Stefan Bodewig <bo...@apache.org>]

On Thu, 9 Jan 2003, Stefan Schulz <ss...@ivs.tu-berlin.de> wrote:

> My request seems mistakable :)

Or I've not been focussed, sorry.  <fileset>'s are always a set of
existing files, so your "but fileset doesn't support nested mappers"
somehow triggered the misunderstanding.  You don't want a fileset but
a set of names.

> What I like to do: - read a set of files from a directory - create a
> set from above set containing the same but modified elements

And do with this set ... what?

I don't see a built-in way for this general description, but maybe
there is a way to achieve what you want (<pathconvert>?) - depends on
your needs.

Stefan

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RE: Stripping extensions without file operation

[Stefan Schulz <ss...@ivs.tu-berlin.de>]

My request seems mistakable :)

What I like to do:
- read a set of files from a directory
- create a set from above set containing the same but modified elements

For Example, the set of files contains class-files. So the result should
be a set having all the files, but not having the ".class" extension.

With the below pseudo-ant-snippet:

source:
 - myproject
   + - app
   |   + - someappTest.class
   |   + - anotherTest.class
   |   + - real.class
   |
   + - gui
       + - guiTest.class

fileset:
 myproject/app/someappTest.class
 myproject/app/anotherTest.class
 myproject/gui/guiTest.class

resulting fileset:
 myproject/app/someappTest
 myproject/app/anotherTest
 myproject/gui/guiTest

Maybe it would be a misuse of fileset?

Stefan

> -----Original Message-----
> From: Stefan Schulz [mailto:sschulz@ivs.cs.tu-berlin.de] 
> Subject: Stripping extensions without file operation
> 
> 
> Hello,
> 
> what I intend to do would look somewhat like this in ant:
> 
>   <mapper id="stripclass" type="glob" from="*.class" to="*"/>
>   <fileset id="anID" dir="${somedir}">
>     <include name="**/*Test.class"/>
>     <mapper id="stripclass"/>
>   </fileset>
> 
> Unfortunately, fileset does not support a nested mapper.
> 
> I do not want to copy any file, but use the fileset's entries 
> later on in various tasks. Is there a simple or generic 
> possibility to do so in ant or do extensions exist to solve 
> my problem?
> 
> Thanks for any help
> Stefan


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