The only way we've found to accomplish this is with <if/> from ant-contrib.
Using your example:
<ac:if>
<isset property="some_property_is_set" />
<then>
<import file="file1.xml" />
</then>
</ac:if>
Hope this helps.
--Cyril
On Thu, Sep 16, 2010 at 12:03 AM, Stefan Bodewig <bode...@apache.org> wrote:
> On 2010-09-15, John W. Lewis wrote:
>
> > Can imports go in targets?
>
> No.
>
> Ant needs to know all targets in order to build the dependency graph
> before it can start executing the first target. This means all <import>
> must have been done before any target is run.
>
> > The way I have done it in the past is to conditionally set a property
> > and import the property. When I don't want to import something, I set
> > the property to a filename that does not exist. Make sure you
> > <import optional="true" />.
>
> Good idea.
>
> Stefan
>
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