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Mastering Gradle

By : Mitra

3 (4)

Mastering Gradle

3 (4)

By: Mitra

Overview of this book

If you are a developer with some experience in build tool and want to become an expert in build tool, then this book is for you. Basic knowledge of Gradle or any other build tool is essential.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Getting Started with Gradle

1. Getting Started with Gradle

Understanding Build Automation System

Gradle overview

Installation and quick start

Our first script

Gradle command Line arguments

The Gradle GUI

Start up script

Build life cycle

Cache management

Gradle with IDE

Summary

2. Groovy Essentials for Gradle

2. Groovy Essentials for Gradle

Overview

Groovy script for Hello World

Data types

Classes, beans, and methods

Control structures

Collections

Closure

Builder

Summary

3. Managing Task

3. Managing Task

Build script basics

Task configuration

Task execution

Task dependency

Task ordering

Task operations

Gradle's in-built tasks

Custom tasks

Summary

4. Plugin Management

4. Plugin Management

The script plugin

The binary plugin

Gradle's in-built plugins

The Java plugin

The custom plugin

Summary

5. Dependency Management

5. Dependency Management

Overview

Dependency configurations

Dependency resolution

Customizing the dependency

Publishing artifacts

Summary

6. Working with Gradle

6. Working with Gradle

The War plugin

The Scala plugin

Logging

File management

Property management

Multi-project build

Testing with Gradle

Summary

7. Continuous Integration

7. Continuous Integration

Jenkins walk-through

Checkstyle and PMD plugins

The Sonar Runner plugin

TeamCity walk-through

Summary

8. Migration

8. Migration

Migration from Ant

Migration from Maven

Summary

9. Deployment

9. Deployment

Role of Gradle in deployment

Docker overview

Installing Docker

Docker commands

Running an application in Docker

Build, Deployment, and Test pipeline

Summary

10. Building Android Applications with Gradle

10. Building Android Applications with Gradle

Creating Android project using Android Studio

Building the Android project with Gradle

Summary

Index

Index

Customer Reviews

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Task execution

As mentioned earlier, a task is nothing but a single or group of actions that is executed to perform certain operations. You can add multiple actions to doFirst or doLast closures if needed. The doFirst closure will always execute before the doLast closure. You can add the actions to the task even after task definition.

For example, add the following statements after the sampleTask2 task is mentioned in the preceding script.

sampleTask2.doFirst { println "Actions added separately" }
sampleTask2.doLast { println " More Actions added " }

The preceding statement will add two more additional actions to sampleTask2. Gradle provides one short notation for doLast, which is <<.

In Groovy, << is the left shift operator to append elements to a list:

task sampleTask3 << {
        println "Executing task3"
}
sampleTask3.doFirst {println "Adding doFirst action" }

Try to execute sampleTask3 and review the output:

$ gradle sampleTask3
...
:sampleTask3
Adding doFirst action
Executing...

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