Ant MXMLC task with arbitrary list of source/lib paths?

Does anyone know of a way to use the mxmlc Flex Ant task开发者_如何学编程 with a user-defined list of source or library paths?

The user should be able to define an arbitrary list of source and/or library (.swc) paths in an Ant properties file and the build file can use these values in the mxmlc task.

Are there any tricks (maybe use filtering/string replacing) to get this working?

Don't know if this helps, but you can include an external XML in your Ant build file:

<?xml version="1.0" ?>
<project name="test" default="test" basedir=".">

  <target name="setup">
    ...
  </target>

  <import file="./common.xml" />

</project>

I ran across your question, looking for a way to define the library (and source path) definitions in external files. Looping through a list of defined properties seems somewhat problematic to me, since you would possibly have to define a list of library paths as well as sub-lists of files in each defined path in the list.

Seems that including external files defining the library and various source paths might be a better and just as extensible way to go.

They way I do it is list my source paths, library paths etc. in an external mxmlc configuration file (e.g. flex-config.xml), my more-or-less universal build.xml file just does

<mxmlc file="${app.mainClass}" output="${swf}">
    <load-config filename="${air.sdk.config}" />
    <load-config filename="${app.config}" />
</mxmlc>

Where air.sdk.config points to the SDK's default config xml and app.config is the app's custom config xml.

I don't know if it is possible to do it from a properties file.

You can use this in your Ant script:

<source-path>
    <source-path path-element="my/src/dir" />
</source-path>
<library-path dir="my/libs/dir" append="true">
    <include name="*.swc" />
</library-path>

Or maybe develop some Ant module to simulate this from your properties file.

I can't understand why you want to make your properties file dynamic, it is the role of your build.xml normally, but hey :)