file::exists

Determines whether the specified file exists.

bool file::exists(file)

Name	Type	Description
file	string	The file to check.

true if file refers to an existing file; otherwise, false.

Execute a set of tasks, if file "output.xml" does not exist.

            <if test="${not file::exists('output.xml')}">
                ...
            </if>

Assembly: NAnt.Core (0.91.4312.0)