The Hand that Rocked the Gradle

An introduction to Gradle

Transcript

1. The Hand that Rocks the An introduction to Gradle by @trevorgowing hosted by @bsgafrica
2. Where does Gradle fit in?
3. Standing on the shoulders of giants https://en.wikipedia.org/wiki/Gradle https://en.wikipedia.org/wiki/Apache_Ant https://en.wikipedia.org/wiki/Apache_Maven
4. Gradle Features
5. Feature time! http://www.drdobbs.com/jvm/why-build-your-java-projects-with-gradle/240168608
6. XML! Kill it with fire! https://memegenerator.net/instance/65229076
7. Who doesn’t like a good looking model? http://www.drdobbs.com/jvm/why-build-your-java-projects-with-gradle/240168608 build.gradle is an instance of org.gradle.api.Project
8. Don’t be a fool, wrap your build tool! The wrapper is made up of a collections of files, namely: • gradlew (Unix shell script) • gradlew.bat (Windows batch file) • gradle/wrapper/gradle-wrapper.jar • gradle/wrapper/gradle-wrapper.properties https://memegenerator.net/instance/65420850
9. Here there be daemons! How to enable the Gradle daemon: • Via environment variables - add -Dorg.gradle.daemon=true to the GRADLE_OPTS environment variable • Via properties file - add org.gradle.daemon=true to the «GRADLE_USER_HOME» /gradle.properties file. http://www.lovethispic.com/image/13730/i-can't-drown-my-demons
10. We like our jokes DRY, why not our builds? https://docs.gradle.org/current/userguide/more_about_tasks.html#sec:up_to_date_checks
11. Why does it never end? You can initiate a continuous build by supplying either the -t or --continuous switch: • gradle -t build • gradle --continuous build http://lizbrazier.com/hamsterwheel
12. Integration and Migration
13. Migrating from Ant? https://docs.gradle.org/current/userguide/ant.html#N118A0 https://docs.gradle.org/current/userguide/ant.html#N118A0
14. Migrating from Ant ... https://docs.gradle.org/current/userguide/ant.html#N118A0
15. Welcome to Graven Week! http://www.rugby15.co.za/2014/05/swd-name-their-craven-week-and-academy-week-teams
16. Welcome to Graven Week ... http://www.drdobbs.com/jvm/why-build-your-java-projects-with-gradle/240168608
17. Migrating from Maven • Uses effective POM and effective settings (support for POM inheritance, dependency management, properties) • Supports both single module and multi module projects • Supports custom module names (that differ from directory names) • Generates general metadata - id, description and version • Applies maven, java and war plugins (as needed) • Generates dependencies (both external and inter-module)
18. Migrating from Maven ... • Generates download repositories (inc. local Maven repository) • Adjusts Java compiler settings • Supports packaging of sources and tests • Supports TestNG runner • Generates global exclusions from Maven enforcer plugin settings
19. Demo Time
20. Ancillaries
21. References and Recommended Resources • Why Build your projects with Gradle by Benjamin Muschko http://www.drdobbs.com/jvm/why-build-your-java-projects-with-gradle/240 168608 • Gradle User Guide https://docs.gradle.org/current/userguide/userguide.html • Building and Testing with Gradle by Tim Berglund & Matthew McMullough http://www2.gradle.com/l/68052/2015-01-13/6dm • Gradle Beyond the Basics by Tim Berglund http://www2.gradle.com/l/68052/2015-01-26/23s5 • Gradle for Android and Java by Mark Vieira & Jeremy Silver https://www.udacity.com/course/gradle-for-android-and-java--ud867
22. Keep in touch and thanks! • Twitter - https://twitter.com/trevorgowing • Google - https://plus.google.com/+trevorgowing • Linkedin - https://za.linkedin.com/in/trevorgowing • Meetup - http://www.meetup.com/members/113029642 Special thanks to Nitsan Wakart @nitsanw for encouraging me speak and for the awesome title suggestion! Another special thanks to BSG http://www.bsg.co.za for hosting and sponsoring food & drinks!