Gradle: One technology to build them all
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Gradle is an open-source build automation tool that uses Groovy as a build configuration language. It executes tasks specified in build scripts to compile code, run tests, package applications, and more. Gradle builds up a dependency graph of tasks and only executes those necessary based on what has changed since the last build. This avoids unnecessary work and improves build times. Gradle supports building projects of many technologies through plugins and allows caching of dependencies across developers and CI builds for further speed improvements.
Gradle: One technology to build them all
- 1. Gradle: One technology to build them all Baptiste Mesta - R&D Engineer @ Bonitasoft @baptistemesta 1
- 2. Baptiste Mesta R&D Engineer @ Bonitasoft since 2009 ● BPM Execution engine ● Developer tooling ● IA/Analytics module Twitter: @baptistemesta Github: baptistemesta About me 2
- 3. • What is Gradle? • How it works • Build all kinds of projects • Enjoy the benefits of Gradle Agenda 3
- 5. • Build tool written in Java • Execute on the JVM • Open source • Supported by a company: Gradle Inc. What is Gradle? 5
- 6. Comprehensive DSL to configure build What is Gradle? 6
- 7. Easy to read build execution What is Gradle? 7 Gradle Maven
- 8. Highly customizable and extensible What is Gradle? 8
- 10. • Reads Gradle build scripts • Creates a dependency graph of tasks • Executes required tasks How it works 10
- 11. Tasks: units of work How it works 11 Tasks can have dependencies
- 12. How it works 12
- 13. How it works 13 compileJava Inputs Outputs src/main/java/**/*.java build/classes/java/main/** /*.class
- 14. Simple Java project How it works 14
- 15. How it works 15
- 16. Build all kinds of projects 16
- 17. “Java is nice… but I also have some "Go" in my project…” Build all kinds of projects 17 ... plugins to the rescue!
- 18. Use a community plugin to build a Go project Build all kinds of projects 18
- 19. Use a community plugin to build a Go project Build all kinds of projects 19
- 20. “What if there is no community plugin that fits my needs?” Build all kinds of projects 20 … extract your build logic to a custom plugin
- 21. Build all kinds of projects 21 buildUIDPage Inputs Outputs .json + .js .html + .css + .js Call build Get page
- 22. Build all kinds of projects 22 Go module: community plugin UID page: custom plugin App distrib: depends on other modules and packages them Java module: provided plugins
- 23. “Ok I can build all kind of technologies with Gradle… but why should I?” Build all kind of projects 23
- 24. Enjoy the benefits of Gradle 24
- 25. “Do I still need to install Node, npm and Go locally?” Plugins download distributions if required Enjoy the benefits of Gradle 25
- 26. “Do I still need to install Gradle?” Use the Gradle wrapper You only need a JVM on your environment and on your CI Enjoy the benefits of Gradle 26
- 27. Work avoidance Enjoy the benefits of Gradle 27 TaskInputs Outputs Source files Files produced Compare hash of source files from previous build Same hash: Skip the task Hash changed: Execute the task
- 28. Work avoidance First build Enjoy the benefits of Gradle 28 Java dev Go Java UID Distribution 1. Build 3. Compile 5. Zip all 2. Compile 4. Compile My project
- 29. Work avoidance Second build Enjoy the benefits of Gradle 29 Java dev Go Java UID Distribution 1. Build again 3. Compile 5. Zip all 2. Compile 4. Compile My project UP-TO-DATE UP-TO-DATE UP-TO-DATE UP-TO-DATE
- 30. Work avoidance Third build with code change Enjoy the benefits of Gradle 30 Java dev Go Java UID Distribution 1. Modify Java code and build 3. Compile 5. Zip all 2. Compile 4. Compile My project UP-TO-DATE UP-TO-DATE
- 31. Work avoidance for your team / CI Enjoy the benefits of Gradle 31
- 32. Back to our multi-techno build. What happens in real life? Enjoy the benefits of Gradle 32 Java dev Go Java UID Distribution 1. Update + build 3. Compile 5. Zip all 2. Compile 4. Compile My project
- 33. Back to our multi-techno build. What happens in real life? Enjoy the benefits of Gradle 33 Java dev Remote cache Go Java UID Distribution 1. Update + build 2. Retrieve from cache 5. Zip all 2. Compile 3. Compile 4. Compile My project
- 34. Enjoy the benefits of Gradle 34 Our Java developer never had to build Go or UID modules
- 35. Build time gained @ Bonitasoft on a small Java project Enjoy the benefits of Gradle 35 Without cache With cache
- 36. Enjoy the benefits of Gradle 36 Without cache With cache Build time gained @ Bonitasoft on a project with 30 modules: Java + react + custom
- 37. No tools to install Gradle distribution and other tooling are downloaded and cached Enjoy the benefits of Gradle 37
- 38. Each developer can focus on what matters to them Don't need to rebuild everything locally Enjoy the benefits of Gradle 38
- 39. No need to read setup documentation on every project Just run ./gradlew build Enjoy the benefits of Gradle 39
- 40. Yes we can build everything with gradle! Yes it is useful when mixing technologies! Use the build cache! Conclusion 40
- 41. Thank you! Baptiste Mesta Twitter: @baptistemesta Github: baptistemesta 41
- 42. Work avoidance First build Enjoy the benefits of Gradle 42
- 43. Work avoidance Second build Enjoy the benefits of Gradle 43
- 44. Work avoidance After some sources are modified Enjoy the benefits of Gradle 44