spring-cloud-cli

by spring-cloud

spring-cloud / spring-cloud-cli

Spring Cloud CLI features

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//// DO NOT EDIT THIS FILE. IT WAS GENERATED. Manual changes to this file will be lost when it is generated again. Edit the files in the src/main/asciidoc/ directory instead. ////

image:https://circleci.com/gh/spring-cloud/spring-cloud-cli.svg?style=svg["CircleCI", link="https://circleci.com/gh/spring-cloud/spring-cloud-cli"]

Spring Boot CLI provides https://projects.spring.io/spring-boot[Spring Boot] command line features for https://github.com/spring-cloud[Spring Cloud]. You can write Groovy scripts to run Spring Cloud component applications (e.g.

@EnableEurekaServer
). You can also easily do things like encryption and decryption to support Spring Cloud Config clients with secret configuration values. With the Launcher CLI you can launch services like Eureka, Zipkin, Config Server conveniently all at once from the command line (very useful at development time).

== Installation

To install, make sure you have https://github.com/spring-projects/spring-bootSpring Boot CLI:

$ spring version
Spring CLI v2.2.0.BUILD-SNAPSHOT

E.g. for SDKMan users

$ sdk install springboot 2.2.0.BUILD-SNAPSHOT
$ sdk use springboot 2.2.0.BUILD-SNAPSHOT

and install the Spring Cloud plugin

$ mvn install
$ spring install org.springframework.cloud:spring-cloud-cli:2.2.0.BUILD-SNAPSHOT

IMPORTANT: Prerequisites: to use the encryption and decryption features you need the full-strength JCE installed in your JVM (it's not there by default). You can download the "Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files" from Oracle, and follow instructions for installation (essentially replace the 2 policy files in the JRE lib/security directory with the ones that you downloaded).

== Building

:jdkversion: 1.7

=== Basic Compile and Test

To build the source you will need to install JDK {jdkversion}.

Spring Cloud uses Maven for most build-related activities, and you should be able to get off the ground quite quickly by cloning the project you are interested in and typing


$ ./mvnw install

NOTE: You can also install Maven (>=3.3.3) yourself and run the

mvn
command in place of
./mvnw
in the examples below. If you do that you also might need to add
-P spring
if your local Maven settings do not contain repository declarations for spring pre-release artifacts.

NOTE: Be aware that you might need to increase the amount of memory available to Maven by setting a

MAVEN_OPTS
environment variable with a value like
-Xmx512m -XX:MaxPermSize=128m
. We try to cover this in the
.mvn
configuration, so if you find you have to do it to make a build succeed, please raise a ticket to get the settings added to source control.

For hints on how to build the project look in

.travis.yml
if there is one. There should be a "script" and maybe "install" command. Also look at the "services" section to see if any services need to be running locally (e.g. mongo or rabbit). Ignore the git-related bits that you might find in "before_install" since they're related to setting git credentials and you already have those.

The projects that require middleware generally include a

docker-compose.yml
, so consider using https://docs.docker.com/compose/[Docker Compose] to run the middeware servers in Docker containers. See the README in the https://github.com/spring-cloud-samples/scripts[scripts demo repository] for specific instructions about the common cases of mongo, rabbit and redis.

NOTE: If all else fails, build with the command from

.travis.yml
(usually
./mvnw install
).

=== Documentation

The spring-cloud-build module has a "docs" profile, and if you switch that on it will try to build asciidoc sources from

src/main/asciidoc
. As part of that process it will look for a
README.adoc
and process it by loading all the includes, but not parsing or rendering it, just copying it to
${main.basedir}
(defaults to
${basedir}
, i.e. the root of the project). If there are any changes in the README it will then show up after a Maven build as a modified file in the correct place. Just commit it and push the change.

=== Working with the code If you don't have an IDE preference we would recommend that you use https://www.springsource.com/developer/sts[Spring Tools Suite] or https://eclipse.org[Eclipse] when working with the code. We use the https://eclipse.org/m2e/[m2eclipse] eclipse plugin for maven support. Other IDEs and tools should also work without issue as long as they use Maven 3.3.3 or better.

==== Activate the Spring Maven profile Spring Cloud projects require the 'spring' Maven profile to be activated to resolve the spring milestone and snapshot repositories. Use your preferred IDE to set this profile to be active, or you may experience build errors.

==== Importing into eclipse with m2eclipse We recommend the https://eclipse.org/m2e/[m2eclipse] eclipse plugin when working with eclipse. If you don't already have m2eclipse installed it is available from the "eclipse marketplace".

NOTE: Older versions of m2e do not support Maven 3.3, so once the projects are imported into Eclipse you will also need to tell m2eclipse to use the right profile for the projects. If you see many different errors related to the POMs in the projects, check that you have an up to date installation. If you can't upgrade m2e, add the "spring" profile to your

settings.xml
. Alternatively you can copy the repository settings from the "spring" profile of the parent pom into your
settings.xml
.

==== Importing into eclipse without m2eclipse If you prefer not to use m2eclipse you can generate eclipse project metadata using the following command:

[indent=0]

$ ./mvnw eclipse:eclipse

The generated eclipse projects can be imported by selecting

import existing projects
from the
file
menu.

== Contributing

:spring-cloud-build-branch: master

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.

=== Sign the Contributor License Agreement Before we accept a non-trivial patch or pull request we will need you to sign the https://cla.pivotal.io/sign/spring[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.

=== Code of Conduct This project adheres to the Contributor Covenant https://github.com/spring-cloud/spring-cloud-build/blob/master/docs/src/main/asciidoc/code-of-conduct.adoc[code of conduct]. By participating, you are expected to uphold this code. Please report unacceptable behavior to [email protected]

=== Code Conventions and Housekeeping 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 https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/master/spring-cloud-dependencies-parent/eclipse-code-formatter.xml[Spring Cloud Build] project. If using IntelliJ, you can use the https://plugins.jetbrains.com/plugin/6546[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 https://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html[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).

=== Checkstyle

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:

.spring-cloud-build-tools/

└── src    ├── checkstyle    │   └── checkstyle-suppressions.xml <3>    └── main    └── resources    ├── checkstyle-header.txt <2>

   └── checkstyle.xml <1>

<1> Default Checkstyle rules <2> File header setup <3> Default suppression rules

==== Checkstyle configuration

Checkstyle rules are disabled by default. To add checkstyle to your project just define the following properties and plugins.

.pom.xml

true <1> true <2> true <3>

<4> io.spring.javaformat spring-javaformat-maven-plugin <5> org.apache.maven.plugins maven-checkstyle-plugin

    
         <5>
            org.apache.maven.plugins
            maven-checkstyle-plugin
        
    

<1> Fails the build upon Checkstyle errors <2> Fails the build upon Checkstyle violations <3> Checkstyle analyzes also the test sources <4> Add the Spring Java Format plugin that will reformat your code to pass most of the Checkstyle formatting rules <5> 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:

.projectRoot/src/checkstyle/checkstyle-suppresions.xml

<?xml version="1.0"?> <!DOCTYPE suppressions PUBLIC "-//Puppy Crawl//DTD Suppressions 1.1//EN" "https://www.puppycrawl.com/dtds/suppressions11.dtd">

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

=== IDE setup

==== Intellij IDEA

In order to setup Intellij you should import our coding conventions, inspection profiles and set up the checkstyle plugin. The following files can be found in the https://github.com/spring-cloud/spring-cloud-build/tree/master/spring-cloud-build-tools[Spring Cloud Build] project.

.spring-cloud-build-tools/

└── src    ├── checkstyle    │   └── checkstyle-suppressions.xml <3>    └── main    └── resources    ├── checkstyle-header.txt <2>    ├── checkstyle.xml <1>    └── intellij       ├── IntellijProjectDefaults.xml <4>

      └── IntellijSpringBootJavaConventions.xml <5>

<1> Default Checkstyle rules <2> File header setup <3> Default suppression rules <4> Project defaults for Intellij that apply most of Checkstyle rules <5> Project style conventions for Intellij that apply most of Checkstyle rules

.Code style

image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/{spring-cloud-build-branch}/docs/src/main/asciidoc/images/intellij-code-style.png[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.

.Inspection profiles

image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/{spring-cloud-build-branch}/docs/src/main/asciidoc/images/intellij-inspections.png[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.

.Checkstyle

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

image::https://raw.githubusercontent.com/spring-cloud/spring-cloud-build/{spring-cloud-build-branch}/docs/src/main/asciidoc/images/intellij-checkstyle.png[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-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
    .

IMPORTANT: Remember to set the

Scan Scope
to
All sources
since we apply checkstyle rules for production and test sources.

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