ant task to copy properties file to their corresponding place in the java build dir

Question

OK, I'm stumped.

I have a Java tree that looks like a fairly typical Eclipse Java build:

myproject
  src
    com
      example
        test
          // Java files in com.example.test here
  bin
    com
      example
        test
          // Compiled class files will go here

Now I have a MyClass.properties file in myproject/src/com/example/test along with the source Java files. How can I write an appropriate ant task to copy all the changed .properties files in the source tree, to their corresponding places in the build (myproject/bin) tree?

(The easier half of this is to do the actual copy; the harder half of this I'm guessing is checking for dependencies)

Answer 1

How about:

<copy todir="myproject/bin">
   <fileset dir="myproject/src" includes="**/*.properties"/>
</copy>

Answer 2

From the Ant manual about the task:

Copies a file or resource collection to a new file or directory. By default, files are only copied if the source file is newer than the destination file, or when the destination file does not exist. However, you can explicitly overwrite files with the overwrite attribute.