Book Image

Gradle Effective Implementations Guide - Second Edition

By : Hubert Klein Ikkink
Book Image

Gradle Effective Implementations Guide - Second Edition

By: Hubert Klein Ikkink

Overview of this book

Gradle is a project automation tool that has a wide range of applications. The basic aim of Gradle is to automate a wide variety of tasks performed by software developers, including compiling computer source code to binary code, packaging binary codes, running tests, deploying applications to production systems, and creating documentation. The book will start with the fundamentals of Gradle and introduce you to the tools that will be used in further chapters. You will learn to create and work with Gradle scripts and then see how to use Gradle to build your Java Projects. While building Java application, you will find out about other important topics such as dependency management, publishing artifacts, and integrating the application with other JVM languages such as Scala and Groovy. By the end of this book, you will be able to use Gradle in your daily development. Writing tasks, applying plugins, and creating build logic will be your second nature.
Table of Contents (18 chapters)
Gradle Effective Implementations Guide - Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface

Adding tasks in other ways


Until now, we have added tasks to our build project using the task keyword, followed by the name of the task. However, there are more ways to add tasks to our project. We can use a String value with the task name to define a new task, as follows:

task 'simple' << { task -> 
    println "Running ${task.name}" 
} 

We can also use variable expressions to define a new task. If doing so, we must use parenthesis, otherwise the expression cannot be resolved. The following sample script defines a simpleTask variable with the simple string value. This expression is used to define the task. The result is that our project now contains a task with the name simple:

// Define name of task 
// as a variable. 
def simpleTask = 'simple' 
 
// Variable is used for the task name. 
task(simpleTask) << { task -> 
    println "Running ${task.name}" 
} 

We can run the tasks task to see our newly created task:

$ gradle -q tasks
...
Other tasks
-----------
simple
...

We...