Book Image

Gradle Effective Implementation Guide

Book Image

Gradle Effective Implementation Guide

Overview of this book

Gradle is the next generation in build automation. It uses convention-over-configuration to provide good defaults, but is also flexible enough to be usable in every situation you encounter in daily development. Build logic is described with a powerful DSL and empowers developers to create reusable and maintainable build logic."Gradle Effective Implementation Guide" is a great introduction and reference for using Gradle. The Gradle build language is explained with hands on code and practical applications. You learn how to apply Gradle in your Java, Scala or Groovy projects, integrate with your favorite IDE and how to integrate with well-known continuous integration servers.Start with the foundations and work your way through hands on examples to build your knowledge of Gradle to skyscraper heights. You will quickly learn the basics of Gradle, how to write tasks, work with files and how to use write build scripts using the Groovy DSL. Then as you develop you will be shown how to use Gradle for Java projects. Compile, package, test and deploy your applications with ease. When you've mastered the simple, move on to the sublime and integrate your code with continuous integration servers and IDEs. By the end of the "Gradle Effective Implementation Guide" you will be able to use Gradle in your daily development. Writing tasks, applying plugins and creating build logic will be second nature.
Table of Contents (20 chapters)
Gradle Effective Implementation Guide
About the Author
About the Reviewers

Writing a build script

In the first chapter we have already written our first build script. Let's create a similar build script with a simple task. Gradle will look for a file with the name build.gradle, in the current directory. The file build.gradle contains the tasks that make up our project. In this example, we define a simple task that prints out a simple message to the console:

project.description = 'Simple project'

task simple << {
    println 'Running simple task for project ' + project.description

If we run the build we see the following output in the console:

$ gradle simple
Running simple task for project Simple project


Total time: 2.08 secs

A couple of interesting things happen with this small build script. Gradle reads the script file and creates a Project object. The build script configures the Project object, and finally the set of tasks to be executed is determined and executed.

So, it is important to note that Gradle creates a Project object...