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ANDRES ALMIRAY IX-CHEL RUIZ @AALMIRAY @IXCHELRUIZ HARDER, BETTER, STRONGER, FASTER

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WHAT

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Gradle is a build tool designed to take advantage of conventions over (not instead) configuration, while staying flexible enough to be customized to the needs of a particular project. In other words, the build tool bends to the project’s will, not the other way around.

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Follows the Maven conventions. Expressive : Prefers a DSL for describing what needs to be done. Extensible : Has a growing an thriving plugin ecosystem. Productive : Fosters fast and reproducible builds. Convenient : It’s CI friendly (gradle wrapper).

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WHY

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RebelLabs © ZeroTurnaround

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RebelLabs © ZeroTurnaround

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Caching of task input and outputs Richer, configurable lifecycle The Gradle deamon The Gradle wrapper Multi-project builds are hassle free Plugin development is more intuitive Better documentation overall

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HOW

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$ curl -s get.gvmtool.net | bash $ gvm install gradle

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. ├── build.gradle ├── pom.xml └── src ├── main │ └── java │ └── sample │ └── Foo.java └── test └── java └── sample └── FooTest.java

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4.0.0 com.acme sample jar 0.0.0-SNAPSHOT junit junit 4.12 test

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apply plugin: 'java' apply plugin: 'maven-publish' version = '0.0.0-SNAPSHOT' group = 'com.acme' repositories { jcenter() } dependencies { testCompile 'junit:junit:4.12' }

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SCENARIOS

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ü  Executable/Launchable application ü  Executable fat jar ü  Installable application

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EXECUTABLE LAUNCHABLE APPLICATION

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org.codehaus.mojo exec-maven-plugin 1.2.1 sample.Foo $ mvn compile exec:java

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apply plugin: 'java' apply plugin: 'application' mainClassName = 'sample.Foo' $ gradle run

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EXECUTABLE FAT JAR

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org.apache.maven.plugins maven-shade-plugin 2.3 sample.Foo $ mvn package –DskipTests=true

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plugins { id 'com.github.johnrengelman.shadow' version '1.2.1' } apply plugin: 'java' apply plugin: 'application' mainClassName = 'sample.Foo' repositories { jcenter() } dependencies { compile 'commons-lang:commons-lang:2.6' } $ gradle shadowJar

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Installable application . ├── bin │ ├── sample │ └── sample.bat └── lib ├── commons-lang-2.6.jar └── sample-0.0.0-SNAPSHOT.jar

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1.  Add assembly plugin 2.  Create assembly descriptor 1.  Dist option for building the directory structure 2.  Zip option for packing all in a single file 3.  Create launch scripts (for all target platforms!) 4.  Might require custom profiles OR configure the appassembler plugin

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apply plugin: 'java' apply plugin: 'application’ mainClassName = 'sample.Foo' repositories { jcenter() } dependencies { compile 'commons-lang:commons-lang:2.6' } $ gradle distZip

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BUT WAIT, THERE’S MORE

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$ gvm install lazybones $ lazybones create gradle-quickstart sample

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license versions stats bintray shadow izpack java2html git coveralls asciidoctor jbake markdown livereload gretty Nexus watch wuff spawn

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THANK YOU! HTTP://PEOPLE.CANOO.COM/SHARE ANDRES ALMIRAY IX-CHEL RUIZ @AALMIRAY @IXCHELRUIZ