You are previewing Building and Testing with Gradle.

Building and Testing with Gradle

Cover of Building and Testing with Gradle by Tim Berglund... Published by O'Reilly Media, Inc.
  1. Building and Testing with Gradle
  2. Dedication
  3. SPECIAL OFFER: Upgrade this ebook with O’Reilly
  4. Foreword
  5. Preface
    1. Introduction
    2. Conventions Used in This Book
    3. Using Code Examples
    4. Safari® Books Online
    5. How to Contact Us
    6. Acknowledgments from Tim Berglund
    7. Acknowledgments from Matthew McCullough
  6. 1. Hello, Gradle!
    1. Build Files in Groovy
    2. Domain-Specific Build Languages
    3. Getting Started
      1. MacOS Installation with Brew
      2. Linux and MacOS Installation
      3. Windows Installation
    4. The Hello World Build File
    5. Building a Java Program
    6. The Gradle Command Line
  7. 2. Gradle Tasks
    1. Declaring a Task
    2. Task Action
    3. Task Configuration
    4. Tasks Are Objects
      1. Methods of DefaultTask
      2. Properties of DefaultTask
      3. Dynamic Properties
    5. Task Types
      1. Copy
      2. Jar
      3. JavaExec
    6. Custom Task Types
      1. Custom Tasks Types in the Build File
      2. Custom Tasks in the Source Tree
    7. Where Do Tasks Come From?
    8. Conclusion
  8. 3. Ant and Gradle
    1. The Vocabulary
    2. Hello Ant
    3. Importing Custom Ant Tasks
    4. Complex Ant Configuration
    5. Importing an Entire Ant Build File
    6. Ant Target and Gradle Task Codependence
    7. Using AntBuilder
    8. A Harmonic Duo
  9. 4. Maven and Gradle
    1. Cue Graven?
    2. The Maven POM and Gradle Build
    3. Maven Goals, Gradle Tasks
    4. The Standard Maven Coordinates, Gradle Properties
    5. More Gradle Properties
    6. Dependencies
    7. Repositories
    8. Unit Testing
    9. Multiple Source Directories
    10. Default Tasks
    11. The Maven Plug-in
    12. Installing to the Local Maven Repository (Cache)
    13. Publishing to a Maven Repository
    14. Maven2Gradle Build Script Converter
    15. Maven POM Import
    16. Conclusion
  10. 5. Testing with Gradle
    1. JUnit
    2. TestNG
    3. Spock
    4. Geb and EasyB
    5. Gradle’s Testing Focus
  11. 6. Multiproject Builds
    1. Multiproject Build Structure
    2. Project-Specific Build Files
    3. One Master Build File
    4. A Hybrid Multiproject Build
    5. Individual, Unified, or Hybrid?
    6. Multiproject Task Structure
    7. Multiple Projects Your Way
  12. About the Authors
  13. Colophon
  14. SPECIAL OFFER: Upgrade this ebook with O’Reilly
  15. Copyright
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Chapter 3. Ant and Gradle

When considering leveraging an existing investment in Apache Ant, or perhaps using the broad set of tasks that the Ant community has created, Gradle has a great story to tell. Gradle offers a complete superset of Ant. In fact, it makes Gradle’s use of Ant simpler than directly using Ant, partly by leveraging Groovy’s AntBuilder functionality. Gradle brings in everything from the Ant namespace into the Gradle namespace such that using a core Ant task is as easy as calling ant.<taskname>.

Discussing the usage of Ant from Gradle provides a great bridge in terms of progressive migration to a pure Gradle strategy. Over time though, we believe you’ll desire to standardize on the more powerful Gradle feature set by using native Gradle components or by wraping any Ant behavior in a Gradle plug-in. The latter maintains the value of the functioning Ant behavior while fully enabling build-by-convention throughout the updated Gradle build ecosystem. With full awareness of the quantity of existing Ant infrastructure and value of leveraging it via the new build tool, Gradle ships with a full copy of Ant, thus making Ant’s default tasks available to every Gradle build. To aid with this mind-set remapping, we’ll discuss how Gradle compares to Ant, providing parallels in the approaches to writing builds and to each tool’s unique terminology.

The Vocabulary

Gradle is occasionally described as a Groovy-based Ant. That would be the role that Gant fills, but Gradle has much more ...

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