Input Directory
Marks a property as specifying an input directory for a task.
This annotation should be attached to the getter method in Java or the property in Groovy. Annotations on setters or just the field in Java are ignored.
This will cause the task to be considered out-of-date when the directory location or contents have changed.
This annotation implies IgnoreEmptyDirectories.
Note: To make the task dependent on the directory's location but not its contents, expose the path of the directory as an org.gradle.api.tasks.Input property instead.