A task object already has several properties and methods. However, we can add any arbitrary new property to a task and use it. Gradle provides an ext namespace for the task object. We can set new properties and use them again once they are set. We can either set a property directly or use a closure to set a property with a value. In the following sample, we print the value of the message task property. The value of the property is assigned with the simple.ext.message = 'world' statement:
// Create simple task.
task simple << {
println "Hello ${message}"
}
// We set the value for
// the non-existing message
// property with the task extension
// support.
simple.ext.message = 'world'
When we run the task, we get the following output:
:simple Hello world BUILD SUCCESSFUL Total time: 0.584 secs