If set, and Hudson is set to poll for changes, Hudson will ignore any files and/or folders that are not in this list when determining if a build needs to be triggered.

Each inclusion uses regular expression pattern matching, and must be separated by a new line.

This is useful when you need to check out an entire resource for building, but only want to do the build when a subset has changed.

    	/trunk/myapp/c/library1/.*
    	/trunk/myapp/c/library2/.*

If /trunk/myapp is checked out, the build will only occur when there are changes to either the c/library1 and c/library2 subtrees.

If there are also excluded regions specified, then a file is not ignored when it is in the included list and not in the excluded list.

More information on regular expressions can be found here.