For a specific file, you can use a combination of the <available> task and
the "unless" <target> attribute:
<target name="copyFoo" depends="noFoo">
<copy.../>
</target>
<target name="noFoo" depends="checkFoo" unless="foo.present">
<fail message="Error: File foo not found."/>
</target>
<target name="checkFoo">
<available file="foo" property="foo.present"/>
</target>
Diane
--- Jiong Wei <[EMAIL PROTECTED]> wrote:
>
> I notice the "failonerror" attribute only available for the following
> tasks:
> <apply> <exec> <execon> <java>
> <javac> <javadoc> and .NET tasks
>
> If true, then how to fail a build when such as a critical <copy> failed?
> Currently, even when the src file is missing, ant still continues.
>
> Also, the I really have no clue how to tigger the <fail> task, is there
> a
> ant property indicates the status of last operation?
>
> Jiong
>
>
=====
([EMAIL PROTECTED])
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