It is very common in a build script that we have to work with files and directories. For example, when we need to copy a file from one directory to another, or when we first create a directory to store the output of a task or program.
To locate a file or directory relative to the current project, we can use the file() method. This method is actually a method of the Project object that is connected to our build script. In the previous chapter we learned how we could use an explicit reference to the project variable or simply invoke methods and properties of the Project object implicitly.
The file() method will resolve the location of a file or directory relative to the current project and not the current working directory. This is very useful because we can run a build script from a different directory than the location of the actual build script. File or directory references that are returned by the file() method are then resolved relative to the project directory...