Rock the Gradle, Rule the World

Transcript

1. Rock the Gradle Rule the world

2. About… Lead Android Engineer at WorkWell Fluent in Android since

   Cupcake 2

3. A brief introduction 1

4. Dependency Management System What is Gradle General Purpose Build management

   4

5. 5 General purpose Language agnostic Feature agnostic

6. 6 Dependency management system Knows how to graph and resolve

   dependencies ◇ code ◇ tasks ◇ …

7. 7 Build management Based on tasks created by plugins

8. Configuration Gradle flow Initialisation Execution 8

9. 9 Initialisation Launches the JVM (with proper params) Analyse the

   working directory Reads the settings.gradle file Creates the Project object(s) that will be used Compiles, test and add buildSrc to the classpath

10. 10 Configuration Execute all the build.gradle scripts in the project

    Create all the Task objects and configure the Project object(s) Resolves the tasks dependencies

11. 11 Execution List the Task to run based on the

    invocation (and their dependencies) Execute each of the tasks

12. Meet the buildSrc folder 2

13. Project structure ┬ MyProject ├┬ app/ │├── src/ │└── build.gradle

    ├┬ buildSrc/ │├── src/ │├── build.gradle │└── settings.gradle ├─ build.gradle └─ settings.gradle 13

14. Purposes… ◇ Better dependency management ◇ Helper classes / methods

    ◇ Custom tasks in dedicated classes ◇ Custom plugin ￭ Locally versionned with the project 14

15. How does it work? ◇ Works like any module in

    your project ◇ Compiled and tested before any gradle task ◇ Groovy, Java, Kotlin, … ◇ Any public class / method becomes availble in gradle scripts 15

16. “ A change in buildSrc causes the whole project to

    become out-of-date. 16

17. apply plugin: 'groovy' dependencies { compile gradleApi() compile localGroovy() }

    17 Default build.gradle

18. Writin a Plugin 3

19. Hands On 19

20. Thanks! Any questions? ◇ https://github.com/xgouchet/RockTheGradle ◇ @xgouchet 20