2019-03-07 spring cloud build Spring Cloud Build is a common utility project for Spring Cloud to use for plugin and dependency management. To install locally: $ mvn install -s .settings.xml and to deploy snapshots to repo.spring.io: $ mvn deploy -DaltSnapshotDeploymentRepository=repo.spring.io::default::https://repo.spring.io/libs-snapshot-local for a RELEASE build use $ mvn deploy -DaltReleaseDeploymentRepository=repo.spring.io::default::https://repo.spring.io/libs-release-local and for jcenter use $ mvn deploy -DaltReleaseDeploymentRepository=bintray::default::https://api.bintray.com/maven/spring/jars/org.springframework.cloud:build and for Maven Central use $ mvn deploy -P central -DaltReleaseDeploymentRepository=sonatype-nexus-staging::default::https://oss.sonatype.org/service/local/staging/deploy/maven2 (the "central" profile is available for all projects in Spring Cloud and it sets up the gpg jar signing, and the repository has to be specified separately for this project because it is a parent of the starter parent which users in turn have as their own parent). Spring Cloud is released under the non-restrictive Apache 2.0 license, and follows a very standard Github development process, using Github tracker for issues and merging pull requests into master. If you want to contribute even something trivial please do not hesitate, but follow the guidelines below.

Before we accept a non-trivial patch or pull request we will need you to sign the Contributor License Agreement. Signing the contributor’s agreement does not grant anyone commit rights to the main repository, but it does mean that we can accept your contributions, and you will get an author credit if we do. Active contributors might be asked to join the core team, and given the ability to merge pull requests.

This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to spring-code-of-conduct@pivotal.io.

None of these is essential for a pull request, but they will all help. They can also be added after the original pull request but before a merge. Use the Spring Framework code format conventions. If you use Eclipse you can import formatter settings using the eclipse-code-formatter.xml file from the Spring Cloud Build project. If using IntelliJ, you can use the Eclipse Code Formatter Plugin to import the same file. Make sure all new .java files to have a simple Javadoc class comment with at least an @author tag identifying you, and preferably at least a paragraph on what the class is for. Add the ASF license header comment to all new .java files (copy from existing files in the project) Add yourself as an @author to the .java files that you modify substantially (more than cosmetic changes). Add some Javadocs and, if you change the namespace, some XSD doc elements. A few unit tests would help a lot as well — someone has to do it. If no-one else is using your branch, please rebase it against the current master (or other target branch in the main project). When writing a commit message please follow these conventions, if you are fixing an existing issue please add Fixes gh-XXXX at the end of the commit message (where XXXX is the issue number).

Spring Cloud Build comes with a set of checkstyle rules. You can find them in the spring-cloud-build-tools module. The most notable files under the module are: └── src    ├── checkstyle    │   └── checkstyle-suppressions.xml    └── main    └── resources    ├── checkstyle-header.txt    └── checkstyle.xml Default Checkstyle rules File header setup Default suppression rules

Checkstyle rules are disabled by default. To add checkstyle to your project just define the following properties and plugins. <properties> <maven-checkstyle-plugin.failsOnError>true</maven-checkstyle-plugin.failsOnError> <maven-checkstyle-plugin.failsOnViolation>true </maven-checkstyle-plugin.failsOnViolation> <maven-checkstyle-plugin.includeTestSourceDirectory>true </maven-checkstyle-plugin.includeTestSourceDirectory> </properties> <build> <plugins> <plugin> <groupId>io.spring.javaformat</groupId> <artifactId>spring-javaformat-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-checkstyle-plugin</artifactId> </plugin> </plugins> <reporting> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-checkstyle-plugin</artifactId> </plugin> </plugins> </reporting> </build> Fails the build upon Checkstyle errors Fails the build upon Checkstyle violations Checkstyle analyzes also the test sources Add the Spring Java Format plugin that will reformat your code to pass most of the Checkstyle formatting rules Add checkstyle plugin to your build and reporting phases If you need to suppress some rules (e.g. line length needs to be longer), then it’s enough for you to define a file under ${project.root}/src/checkstyle/checkstyle-suppressions.xml with your suppressions. Example: <?xml version="1.0"?> <!DOCTYPE suppressions PUBLIC "-//Puppy Crawl//DTD Suppressions 1.1//EN" "https://www.puppycrawl.com/dtds/suppressions_1_1.dtd"> <suppressions> <suppress files=".*ConfigServerApplication\.java" checks="HideUtilityClassConstructor"/> <suppress files=".*ConfigClientWatch\.java" checks="LineLengthCheck"/> </suppressions> It’s advisable to copy the ${spring-cloud-build.rootFolder}/.editorconfig and ${spring-cloud-build.rootFolder}/.springformat to your project. That way, some default formatting rules will be applied. You can do so by running this script: $ curl https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/.editorconfig -o .editorconfig $ touch .springformat

In order to setup Intellij you should import our coding conventions, inspection profiles and set up the checkstyle plugin. └── src    ├── checkstyle    │   └── checkstyle-suppressions.xml    └── main    └── resources    ├── checkstyle-header.txt    ├── checkstyle.xml    └── intellij       ├── Intellij_Project_Defaults.xml       └── Intellij_Spring_Boot_Java_Conventions.xml Default Checkstyle rules File header setup Default suppression rules Project defaults for Intellij that apply most of Checkstyle rules Project style conventions for Intellij that apply most of Checkstyle rules

Code style

Go to File → Settings → Editor → Code style. There click on the icon next to the Scheme section. There, click on the Import Scheme value and pick the Intellij IDEA code style XML option. Import the spring-cloud-build-tools/src/main/resources/intellij/Intellij_Spring_Boot_Java_Conventions.xml file.

Code style

Go to File → Settings → Editor → Inspections. There click on the icon next to the Profile section. There, click on the Import Profile and import the spring-cloud-build-tools/src/main/resources/intellij/Intellij_Project_Defaults.xml file. To have Intellij work with Checkstyle, you have to install the Checkstyle plugin. It’s advisable to also install the Assertions2Assertj to automatically convert the JUnit assertions Checkstyle Go to File → Settings → Other settings → Checkstyle. There click on the + icon in the Configuration file section. There, you’ll have to define where the checkstyle rules should be picked from. In the image above, we’ve picked the rules from the cloned Spring Cloud Build repository. However, you can point to the Spring Cloud Build’s GitHub repository (e.g. for the checkstyle.xml : https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle.xml). We need to provide the following variables: checkstyle.header.file - please point it to the Spring Cloud Build’s, spring-cloud-build-tools/src/main/resources/checkstyle/checkstyle-header.txt file either in your cloned repo or via the https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/main/resources/checkstyle-header.txt URL. checkstyle.suppressions.file - default suppressions. Please point it to the Spring Cloud Build’s, spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml file either in your cloned repo or via the https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-build-tools/src/checkstyle/checkstyle-suppressions.xml URL. checkstyle.additional.suppressions.file - this variable corresponds to suppressions in your local project. E.g. you’re working on spring-cloud-contract. Then point to the project-root/src/checkstyle/checkstyle-suppressions.xml folder. Example for spring-cloud-contract would be: /home/username/spring-cloud-contract/src/checkstyle/checkstyle-suppressions.xml. Remember to set the Scan Scope to All sources since we apply checkstyle rules for production and test sources.

Spring Cloud Build publishes its spring-cloud-build-docs module that contains helpful scripts (e.g. README generation ruby script) and css, xslt and images for the Spring Cloud documentation. If you want to follow the same convention approach of generating documentation just add these plugins to your docs module <profiles> <profile> <id>docs</id> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-dependency-plugin</artifactId> </plugin> <plugin> <groupId>org.asciidoctor</groupId> <artifactId>asciidoctor-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-antrun-plugin</artifactId> <inherited>false</inherited> </plugin> </plugins> </build> </profile> </profiles> This plugin downloads and unpacks the resources of the spring-cloud-build-docs module This plugin is required to parse the Asciidoctor documentation This plugin is required to copy resources into proper final destinations and to generate main README.adoc The order of plugin declaration is important!