Maven git clone https://github.com/jonananas/maven-examples.git - - PowerPoint PPT Presentation

Maven

git clone https://github.com/jonananas/maven-examples.git

Build automation Tools

• Automates braindraining repetitive work
• compiling
• testing
• creating artifacts
• Ensures automatic repeatable builds!
• List_of_build_automation_software
• Make
• Ant
• Maven
• npm
• Gradle
• SBT
• …

Repeatable builds

• Correct target platform
• Correct source encoding
• Correct dependencies incl versions
• Correct tools including versions
• Builds on every source platform
• …

Build automation Tools

• Enabler for automated
• Continuous Integration
• Continuous Delivery
• Continuous Deployment

Build Server

− Monitors source repository − Triggers on each commit − Runs command (maven, bash, …) − Keeps history − Notifies failure/Success − Examples

• Bamboo (Atlassian)
• Jenkins (OpenSource)
• TeamCity (JetBrains)

Maven

• Enables repeatable builds
• Cleans up from earlier builds
• Puts dependencies on classpath
• Compiles all code
• Runs all tests
• Creates artifact, example project-jar-0.0.1-SNAPSHOT.jar
• Deploys maven repository and source repository
• Deploys to server
• IDE agnostic way of configuring project (Intellij, Eclipse, …)
• Filters resources
• Runs static analysis tools

−

Coverage reports

• And more!

Maven

• dependency management
• maven coordinates
• packaging
• build phases
• plugins
• scopes
• project structure
• project file - pom.xml
• commands
• NyA

pom.xml

• pom - Project Object Model
• Information and configuration details required

to build project

Properties

• DRY - Don’t repeat yourself

Dependency management

Maven coordinates

• <dependency>


<groupId>junit</groupId>
 <artifactId>junit</artifactId>
 <version>4.8.1</version>
 </dependency>


• https://mvnrepository.com/artifact/junit/junit/4.8.1
• ~/.m2/repository/junit/junit/4.8.1

dependencyManagement

• Decides which version of a dependency will be

used

• Inherited

Example

dependency-resolution

project structure

• project-root/
• pom.xml
• src/main/java
• src/main/resources
• src/test/java
• src/test/resources
• target
• cd project; find src

Example

• Multimodule

Packaging

• packaging
• pom
• jar - default
• war
• ear

Build phases

• Default lifecycle
• validate
• validate project
• compile - compile sources
• test
• run tests
• package - package in distributable format
• verify
• check quality criteria
• install
• copy into local repository
• deploy
• copy to remote repository

Build phases

• Clean lifecycle
• clean - removes all temporary files (target)

Plugins

• plugin
• goal —> phase
• maven-compiler-plugin
• compiler:compile —> compile
• maven-resources-plugin
• resources:resources —> process-resources
• maven-surefire-plugin
• surefire:test —> test

Commands

• Import into eclipse
• mvn clean
• mvn test
• mvn package
• mvn install
• mvn exec:java
• mvn deploy
• mvn release:prepare; mvn release:perform

nya-master/3pp/tools/maven/bin/mvn

pluginManagement

• Decides which version of a plugin will be used
• Inherited!

<pluginManagement> <plugins> <plugin> <artifactId>maven-antrun-plugin</artifactId> <version>1.3</version> </plugin>

Example

• maven-examples effective pom

bom

• bom - Bill of Materials
• List of several dependencies that will work

together

• Can be imported in dependencyManagement

Scopes

• Each dependency has a scope, compile by default
• compile - transitive, compile, test, run phases
• provided - non-transitive, compile, test phases
• runtime - transitive, run, test phases
• test - non-transitive, test phases
• import - import dependencyManagement from bom

Example scopes Example

• parent och scopes

Film inför 24/4

The Magic Tricks of Testing by Sandi Metz 32 min

https://www.youtube.com/watch?v=URSWYvyc42M

För tips om hur man undviker sköra tester