That was a nice one! That one should definitely exist as well - if it
does not already exist (?) maybe I'll implement that if time permits.
Regarding getting it into antcontrib instead - that was my intention
from the beginning, guess I chose the wrong mailing list? Apologies...
/Martin
jan.mate...@rzf.fin-nrw.de wrote:
Ok, but these property names are fixed. What about
<property name="dir" value="someValue"/>
<iterate ...>
The file informations could also retrieved via <basename> and <dirname>. Together with <antcontrib:var
name="..." unset="true"/> these properties could be eliminated during each loop.
Your task is more comfortable to use if you need the file information. But I think it should be
more generic and support resource collections. Maybe only file resources. The use of a
<sequential> container is also more performant than reusing <ant> or <antcall>.
<iterate>
<!-- Resource Collection to iterate -->
<path ... />
<!-- Use java.io.File methods -->
<param name="parent" method="getParent()"/>
<param name="name" method="getName()"/>
<!-- Use org.apache.tools.ant.types.resources.FileResource -->
<param name="size" method="getSize()"/>
<sequential>
<echo>
The size of file '@{name}' in directory '@{parent}' is @{size}
Bytes.
</echo>
<sequential>
</iterate>
http://svn.apache.org/repos/asf/ant/core/trunk/src/main/org/apache/tools/ant/types/resources/FileResource.java
http://svn.apache.org/repos/asf/ant/core/trunk/src/main/org/apache/tools/ant/types/resources/FileProvider.java
Jan
-----Ursprüngliche Nachricht-----
Von: Martin Holst Swende [mailto:martin.holst_swe...@msc.se]
Gesendet: Donnerstag, 18. Dezember 2008 12:45
An: Ant Developers List
Betreff: Re: AW: New iterating task
Yes, it does.
However, the foreach-task, to my understanding, cannot as
easily be used
in the examples I provided, since it does not provide parametrized
file-information (basedir, path, name and extension). Otherwise, it is
very similar.
/Martin
jan.mate...@rzf.fin-nrw.de wrote:
Sound very like <antcontrib:foreach> ...
Jan
-----Ursprüngliche Nachricht-----
Von: Martin Holst Swende [mailto:martin.holst_swe...@msc.se]
Gesendet: Donnerstag, 18. Dezember 2008 10:16
An: Ant Developers List
Betreff: New iterating task
Hi all,
I have a little utility-task that I wrote because I did not
find any
better alternative - but maybe I missed something obvious. So
I thought
I would contribute it, if there is any interest.
Anyway, it is a kind of file iterator meant to be used on
tasks that are
not written to handle multiple files. Also a few other
uses, such as
manipulating and/or preserve paths and filenames in the
process . Here
is how I use it :
<taskdef resource="antutilstasks" classpath="jar/antutils.jar" />
<target name="testiterate">
<iterate target="myecho">
<fileset dir="." includes="**\*.java" />
<param name="test" value="Works fine" />
</iterate>
</target>
<target name="myecho">
<echo>
Dir : ${dir}
Path : ${path}
Filename:${filename}
Extension:${extension}
Extra-param: ${test}
</echo>
</target>
What it does is, for each entry in the fileset, it calls the target
(myecho), and sets these properties : dir, path, filename,
extension and
any supplied extra parameters. It just lists files, so far.
The fully qualified path is created in this manner :
dir + path + filename + "." + extension
One way of using it is if I have a dir-structure, say a photoalbum,
where thumbnails have already been generated in the same
structure. If I
want to copy all thumbnails, but keep their directory
structure, normal
file-copy will not suffice (since it will copy all to same
directory).
But I can do this :
<target name="copythumbs">
<iterate target="mycopy">
<fileset dir="photos" includes="**\*_thumb.jpeg" />
</iterate>
</target>
<target name="mycopy">
<copy file="${dir}${path}${filename}.${extension}"
todir="thumbs/${path}"/>
</target>
The todir will retain path, and copy files into e.g
"thumbs/2008/01/21/img01_thumb.jpg" .
And if I have a task that scales images, I could set it up
like this :
<target name="createthumbs">
<iterate target="mythumbgenerator">
<fileset dir="photos" includes="**\*.jpeg" />
<param name="size" value="100x100" />
</iterate>
</target>
<target name="mythumbgenerator">
<rescale file="${dir}${path}${filename}.${extension}"
outfile="thumbs/${path}${filename}_thumb.${extension}"
size="${size}"/>
</target>
This way, I can iterate a task not built for it (in this case
"rescale")
and be pretty flexible with the input parameters to that task.
So, have I re-invented the wheel?
Regards,
Martin Holst Swende
--
Martin Holst Swende ................. MSC Konsult AB
tel: +46(0)70 9519098 ............... Vasagatan 52
martin.holst_swe...@msc.se .......... 111 20 Stockholm
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tel: +46(0)70 9519098 ............... Vasagatan 52
martin.holst_swe...@msc.se .......... 111 20 Stockholm
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tel: +46(0)70 9519098 ............... Vasagatan 52
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