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CONTRIBUTING.md

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Contributing to Spring Content

Spring Content is released under the Apache 2.0 license. If you would like to contribute something, or simply want to hack on the code this document should help you get started.

Code of Conduct

This project adheres to the Contributor Covenant code of conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to the Authors.

Using GitHub Issues

We use GitHub issues to track bugs and enhancements. If you have a general usage question please ask it in our Gitter room.

If you are reporting a bug, please help to speed up problem diagnosis by providing as much information as possible. Ideally, that would include a small sample project that reproduces the problem.

Reporting Security Vulnerabilities

If you think you have found a security vulnerability in Spring Content please DO NOT disclose it publicly until we've had a chance to fix it. Please don't report security vulnerabilities using GitHub issues, instead report it directly to the Authors via email.

Sign the Contributor License Agreement

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.

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 and you follow the 'Importing into eclipse' instructions below you should get project specific formatting automatically. You can also import formatter settings using the eclipse-code-formatter.xml file from the eclipse folder. If using IntelliJ IDEA, you can use the Eclipse Code Formatter Plugin to import the same file.
  • Make sure all new .java files 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.
  • A few unit tests would help a lot as well -- someone has to do it. Spring Content uses the ginkgo4j BDD framework.
  • 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).

== Working with the Code If you don't have an IDE preference we would recommend that you use Spring Tools Suite or Eclipse when working with the code. We use the M2Eclipse eclipse plugin for maven support. Other IDEs and tools should also work without issue.

Building from Source

To build the source you will need to install Apache Maven v3.2.3 or above and JDK 1.8.

Default Build

The project can be built from the root directory using the standard maven command:

$ BUILD_TYPE=dev ./mvnw clean install

Importing into Eclipse

You can import the Spring Content code into any Eclipse-based distribution. The easiest way to setup a new environment is to use the Eclipse Installer with the provided .setup file.

Using the Eclipse Installer

Spring Content includes a .setup file which can be used with the Eclipse Installer to provision a new environment. To use the installer:

  • Download and run the latest Eclipse Installer from eclipse.org/downloads/ (under "Get Eclipse").
  • Switch to "Advanced Mode" using the drop down menu on the right.
  • Select "Eclipse IDE for Java Developers" under "Eclipse.org" as the product to install and click "next".
  • For the "Project" click on "+" to add a new setup file. Select "Github Projects" and browser for <checkout>/eclipse/spring-content-project.setup from your locally cloned copy of the source code. Click "OK" to add the setup file to the list.
  • Double-click on "Spring Content" from the project list to add it to the list that will be provisioned then click "Next".
  • Click show all variables and make sure that "Checkout Location" points to the locally cloned source code that you selected earlier. You might also want to pick a different install location here.
  • Click "Finish" to install the software.

Once complete you should find that a local workspace has been provisioned complete with all required Eclipse plugins. Projects will be grouped into working-sets to make the code easier to navigate.

Manual Installation with M2Eclipse

If you prefer to install Eclipse yourself we recommend that you use the M2Eclipse eclipse plugin. If you don't already have m2eclipse installed it is available from the "Eclipse marketplace".

Spring Content includes project specific source formatting settings, in order to have these work with m2eclipse, we provide additional Eclipse plugins that you can install:

Install the m2eclipse-maveneclipse plugin
  • Select "Help" -> "Install New Software".
  • Add https://dl.bintray.com/philwebb/m2eclipse-maveneclipse as a site.
  • Install "Maven Integration for the maven-eclipse-plugin"
Install the Spring Formatter plugin
  • Select "Help" -> "Install New Software".
  • Add https://dl.bintray.com/philwebb/spring-eclipse-code-formatter/ as a site.
  • Install "Spring Code Formatter"

NOTE: These plugins are optional. Projects can be imported without the plugins, your code changes just won't be automatically formatted.

With the requisite eclipse plugins installed you can select import existing maven projects from the file menu to import the code. You will need to import the root spring-content pom.

Importing into Eclipse without M2Eclipse

If you prefer not to use m2eclipse you can generate eclipse project metadata using the following command:

$ ./mvnw eclipse:eclipse

The generated eclipse projects can be imported by selecting import existing projects from the file menu.

Importing into Other IDEs

Maven is well supported by most Java IDEs. Refer to your vendor documentation.

Cloning the git repository on Windows

Some files in the git repository may exceed the Windows maximum file path (260 characters), depending on where you clone the repository. If you get Filename too long errors, set the core.longPaths=true git option:

git clone -c core.longPaths=true https://github.com/paulcwarren/spring-content