Rock the Gradle, Rule the World

Transcript

1. Rock the Gradle
   Rule the world
   

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

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3. A brief introduction
   1
   

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4. Dependency
   Management
   System
   What is Gradle
   General
   Purpose
   Build
   management
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5. 5
   General purpose
   Language agnostic
   Feature agnostic
   

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6. 6
   Dependency
   management
   system
   Knows how to graph and resolve dependencies
   ◇ code
   ◇ tasks
   ◇ …
   

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7. 7
   Build management
   Based on tasks created by plugins
   

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8. Configuration
   Gradle flow
   Initialisation Execution
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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
   

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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
    

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11. 11
    Execution
    List the Task to run based on the invocation (and their
    dependencies)
    Execute each of the tasks
    

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12. Meet the buildSrc
    folder
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13. Project structure
    ┬ MyProject
    ├┬ app/
    │├── src/
    │└── build.gradle
    ├┬ buildSrc/
    │├── src/
    │├── build.gradle
    │└── settings.gradle
    ├─ build.gradle
    └─ settings.gradle
    13
    

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14. Purposes…
    ◇ Better dependency management
    ◇ Helper classes / methods
    ◇ Custom tasks in dedicated classes
    ◇ Custom plugin
    ￭ Locally versionned with the project
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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
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16. “ A change in buildSrc causes the whole
    project to become out-of-date.
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17. apply plugin: 'groovy'
    dependencies {
    compile gradleApi()
    compile localGroovy()
    }
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    Default build.gradle
    

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18. Writin a Plugin
    3
    

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