When is unless/if checked?

[Todor Boev <t_...@prosyst.bg>]

Hello all,
My question is when the unless/if conditions to execute a target are checked - only once at the beginning of the build or just prior to target execution? Seems to me that ant goes with the first option because the following:

<target name="condition_checker">
   <property name="condition" value="true"/>
</target>

<target name="conditional" depends="condition_checker" unless="${condition}">
  <echo message="Called with condition: ${condition}"/>
</target>

will output

[echo] Called with condition: true

which is somewhat unexpected because the "conditional" should not be executed when condition=true.

10x in advance for all replys.

Re: When is unless/if checked?

[Peter Reilly <pe...@corvil.com>]

You need to do:

<target name="conditional" depends="condition_checker" unless="condition">

Peter

Todor Boev wrote:

>Hello all,
>My question is when the unless/if conditions to execute a target are checked - only once at the beginning of the build or just prior to target execution? Seems to me that ant goes with the first option because the following:
>
><target name="condition_checker">
>   <property name="condition" value="true"/>
></target>
>
><target name="conditional" depends="condition_checker" unless="${condition}">
>  <echo message="Called with condition: ${condition}"/>
></target>
>
>will output
>
>[echo] Called with condition: true
>
>which is somewhat unexpected because the "conditional" should not be executed when condition=true.
>
>10x in advance for all replys.
>  
>


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Re: When is unless/if checked?

[Ivan Ivanov <ra...@yahoo.com>]

Zdravei Todore,

1) There is an error in your unless usage it should be
unless="condition" (yes, without ${}).
2) An ant property is said to be set if it contains
some value in it. In other words 
<property name="condition" value="true"/>
is equivalent to 
<property name="condition" value="false"/>
in both cases this property is set since it has a
value in it.

Dovizdane 
Ivan Ivanov
--- Todor Boev <t_...@prosyst.bg> wrote:
> Hello all,
> My question is when the unless/if conditions to
> execute a target are checked - only once at the
> beginning of the build or just prior to target
> execution? Seems to me that ant goes with the first
> option because the following:
> 
> <target name="condition_checker">
>    <property name="condition" value="true"/>
> </target>
> 
> <target name="conditional"
> depends="condition_checker" unless="${condition}">
>   <echo message="Called with condition:
> ${condition}"/>
> </target>
> 
> will output
> 
> [echo] Called with condition: true
> 
> which is somewhat unexpected because the
> "conditional" should not be executed when
> condition=true.
> 
> 10x in advance for all replys.



	
		
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