Task to determine the directory path of a specified file.

When this task executes, it will set the specified property to the value of the specified file (or directory) up to, but not including, the last path element. If the specified file is a path that ends in a filename, the filename will be dropped. If the specified file is just a filename, the directory will be the current directory.


Attribute Description Required
file The path to take the dirname of. Yes
property The name of the property to set. Yes


  <dirname property="antfile.dir" file="${ant.file}"/>

will set antfile.dir to the directory path for ${ant.file}.

<dirname property="foo.dirname" file="foo.txt"/>

will set foo.dirnameto the project's basedir.

Source: Apache Ant