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From Daniel Blaukopf <blauk...@netbeans.org>
Subject Re: antcall and immutable properties ... Normal ?
Date Tue, 09 Dec 2003 09:58:39 GMT
Is it documented whether or not dependencies are satisified before a 
condition is checked?

Jan.Materne@rzf.fin-nrw.de wrote:

><antcall> opens a new scope for properties. Properties which are set
>in the called target are not available in the calling target. Therefore
>this should work:
>
><target name="A">
>    <antcall target="B"><param name="filename" value="file1"/></antcall>
>    <antcall target="B"><param name="filename" value="file2"/></antcall>
></target>
>
><target name="B.check">
>    <available property="filename_exist" file="${filename}"/>
></target>
>
><target name="B" depends="B.check" if="filename_exist">
>    <echo>filename ${filename} exist</echo>
></target>
>
>That should work without any external task library and with Ant 1.5.
>
>
>
>For easier scripting AntContrib [1] could be something for you:
>
><target name="A">
>    <foreach param="filename" list="file1,file2" target="B"/>
></target>
>
><target name="B.check"/>   <!-- same as above -->
><target name="B"/>
>
>
>And with Ant 1.6 [2] maybe the *def family [3,4,5] would help.
>
>
>Jan
>
>[1] http://sourceforge.net/projects/ant-contrib/
>[2] http://cvs.apache.org/dist/ant/v1.6beta3/
>[3] http://ant.apache.org/manual-1.6beta/CoreTasks/macrodef.html
>[4] http://ant.apache.org/manual-1.6beta/OptionalTasks/scriptdef.html
>[5] http://ant.apache.org/manual-1.6beta/CoreTasks/presetdef.html
>
>
>
>
>
>  
>
>>-----Original Message-----
>>From: Noel Sebastien (BIL) [mailto:Sebastien.Noel@dexia-bil.com]
>>Sent: Monday, December 08, 2003 3:38 PM
>>To: user@ant.apache.org
>>Subject: antcall and immutable properties ... Normal ?
>>
>>
>>Hi everyone,
>>
>>I am using Ant 1.5. I need a functionality to start a task 
>>(via antcall) only if a variable condition is true.
>>This task should be called multiple times and that is the 
>>problem because the "if" attribute of "antcall" only supports 
>>PROPERTIES (that are immutable !!!).
>>
>>Here is an example where i would like to use a file 
>>(deletion, touch and so on) if it already exists and to do 
>>nothing if it does not exist :
>>
>><task          A>
>>	<antCall target=B><param name="filename" 
>>value="file1"/></antCall>
>>	<antCall target=B><param name="filename" 
>>value="file2"/></antCall>
>></task>
>>
>><task          B        if="$filename_exist">         <!-- 
>><<<<< where and how to set "filename_exist" property which 
>>may vary ?? -->
>>	<!-- actions using parameters $filename --> 
>></task>
>>
>>
>>Maybe there is another task (or another easier way) to do 
>>this, tell me it then...
>>Thank you in advance,
>>
>>S├ębastien NOEL 
>>
>>
>>
>>---------------------
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>>    
>>
>
>  
>



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