Software Engineering - Development Infrastructure 2. Kristjan Talvar Nortal

Transcription

1 Software Engineering - Development Infrastructure 2 Kristjan Talvar kristjan.talvar@nortal.com Nortal

2 Topics Different build tools Gradle demo Github as collaboration tool

3 About me Java dev for almost 2 years EMPIS - Unemployed Information Management System Eclipse, Ant, Ivy, Spring, Aranea, Tomcat Mercural, Jira, Confluence, Bamboo, Fisheye

4 Why to automate Programmers hate menial tasks Faster and cleaner project setup Continous integration Consistency and repeatability Scales better Removes human errors form build process

5 What to automate Packaging Deployment Testing

6 Build automation Different build tools Ant Ivy Maven Gradle

7 Ant Started with the command ant build.xml Complex and verbose Strictly for build scripts

8 Targets <target name="compile"> <mkdir dir="build/classes"/> <javac srcdir="src" destdir="build/classes"/> </target> <target name="a"/> <target name="b" depends="a"/>

9 Ivy Dependency management XML based <ivy-module version="2.0"> <info organisation="apache" module="hello-ivy"/> <dependencies> <dependency org= commons-lang" name="commons-l <dependency org="commons-cli" name="commons-cli" </dependencies> </ivy-module>

10 Eclipse project without good project build automation <classpathentry kind="lib" path="war/web- INF/lib/spring-context RELEASE.jar" sourcepath="lib/sources/spring-context-sources RELEASE.jar"/> <dependency name="spring-framework" rev= RELEASE"> <artifact name="springcontext" type="runtime" ext="jar" /> <dependency /> Download and upload the jar Hope Eclipse doesn t break

11 Maven 2004 Its heart is the pom.xml file Describes all the project details Versions, dependencies, resources, structure Still uses XML Standardised

12 Dependency management Auto resolves dependencies Describe what libraries you need Automatically finds the necessary.jars

13 dependencies> <dependency> <groupid>junit</groupid> <artifactid>junit</artifactid> <version>4.0</version> <type>jar</type> <scope>test</scope> <optional>true</optional> </dependency>... </dependencies>

14 Standard Directory Layout src/main/java src/main/resources src/main/filters src/main/webapp src/test/java src/test/resources LICENSE.txt NOTICE.txt README.txt Application/Library sources Application/Library resources Resource filter files Web application sources Test sources Test resources Project's license Notices and attributions Project's readme

15 Flexibility Full control Dependencies Conventions Plugins Groovy with Ant

16 Gradle Previous tools combined Groovy DSL Scripts are code Gradle wrapper No XML

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18 Success stories Netflix Android apps Ticketmaster LinkedIn Unity Ebay

19 Hello world task hello { dolast { println 'Hello world!' } } Output of gradle -q hello > gradle -q hello Hello world!

20 Dependency management Can resolve maven and ivy repositories Uses similar coordinates system to maven and ivy Put version in the filename Need to automate Resolve version conflicts

21 repositories { mavencentral() } dependencies { compile group: 'commons-collections', name: 'commonscollections', version: '3.2' compile org.apache.tomcat:servlet-api:6.0.35' testcompile group: 'junit', name: 'junit', version: '4.+' } compile runtime testcompile testruntime

22 Gradle Plugins Expand project features Add different tasks (compile, test) Extend the Gradle model Add dispersion of dependancies Add new methods and variables

23 jar { Publishing artifacts basename = tvt_test' version = '0.0.1' from('config') { include 'application.properties' } } apply plugin: 'maven' uploadarchives { repositories { mavendeployer { repository(url: "file://localhost/tmp/myrepo/") } }

24 Java plugin apply plugin: java By default uses maven structure gin.html

25 Simple java project buildscript { } repositories { mavencentral() } apply plugin: java' task wrapper(type: Wrapper) { } gradleversion = "2.7"

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27 Project layout Directory src/main/java src/main/resources src/test/java src/test/resources src/sourceset/java src/sourceset/resources Meaning Production Java source Production resources Test Java source Test resources Java source for the given source set Resources for the given source set

28 Eclipse support Ant support built in For maven m2e Plugin For Gradle

29 IntelliJ Has built in support for grade Should use for all new projects Easy to setup a new project

30 Demo time

31 Thank you! Questions and awnsers Contact: