How to Contribute to OrientDB

In order to contribute issues and pull requests, please sign OrientDB's Contributor License Agreement. The purpose of this agreement is to protect users of this codebase by ensuring that all code is free to use under the stipulations of the Apache2 license.

Pushing into main repository

OrientDB uses different branches to support the development and release process. The develop branch contains code under development for which there's not a stable release yet. When a stable version is released, a branch for the hotfix is created. Each stable release is merged on master branch and tagged there. At the time of writing these notes, the state of branches is:

  • develop: work in progress for next 2.2.x release (2.2.0-SNAPSHOT)
  • 2.1.x: hot fix for next 2.1.x stable release (2.1.10-SNAPSHOT)
  • 2.0.x: hot fix for next 2.0.x stable release (2.0.17-SNAPSHOT)
  • last tag on master is 2.1.9

If you'd like to contribute to OrientDB with a patch follow the following steps:

  • fork the repository interested in your change. The main one is https://github.com/orientechnologies/orientdb, while some other components reside in other projects under Orient Technologies umbrella.
  • clone the forked repository
  • select the branch, e.g the develop branch:
  • git checkout develop
  • apply your changes with your favourite editor or IDE
  • test that Test Suite hasn't been broken by running:
  • mvn clean test
  • if all the tests pass, then do a Pull Request (PR) against the branch (e.g.: "develop") on GitHub repository and write a comment about the change. Please don't send PR to "master" because we use that branch only for releasing

Documentation

If you want to contribute to the OrientDB documentation, the right repository is: https://github.com/orientechnologies/orientdb-docs. Every 24-48 hours all the contributions are reviewed and published on the public documentation.

Code formatting

v 3.1 and following

Since v 3.1, OrientDB uses Google code formatter.

In IntelliJ Idea, you can use this plugin https://plugins.jetbrains.com/plugin/8527-google-java-format

From Maven, you can run mvn com.coveo:fmt-maven-plugin:format for automatic code format.

v 3.0 and previous releases

For previous versions (until 3.0) you can use eclipse java formatter config file, that you can find here: _base/ide/eclipse-formatter.xml.

If you use IntelliJ IDEA you can install this plugin and use formatter profile mentioned above.

Debugging

Run OrientDB as standalone server

The settings to run OrientDB Server as stand-alone (where the OrientDB's home is /repositories/orientdb/releases/orientdb-community-2.2-SNAPSHOT) are:

Main Class: com.orientechnologies.orient.server.OServerMain VM parameters: 

-server
-DORIENTDB_HOME=/repositories/orientdb/releases/orientdb-community-2.2-SNAPSHOT
-Dorientdb.www.path=src/site
-Djava.util.logging.config.file=${ORIENTDB_HOME}/config/orientdb-server-log.properties
-Dorientdb.config.file=${ORIENTDB_HOME}/config/orientdb-server-config.xml
-Drhino.opt.level=9

Use classpath of module: orientdb-graphdb

Run OrientDB distributed

The settings to run OrientDB Server as distributed (where the OrientDB's home is /repositories/orientdb/releases/orientdb-community-2.2-SNAPSHOT) are:

Main Class: com.orientechnologies.orient.server.OServerMain VM parameters: 

-server
-DORIENTDB_HOME=/repositories/orientdb/releases/orientdb-community-2.2-SNAPSHOT
-Dorientdb.www.path=src/site
-Djava.util.logging.config.file=${ORIENTDB_HOME}/config/orientdb-server-log.properties
-Dorientdb.config.file=${ORIENTDB_HOME}/config/orientdb-server-config.xml
-Drhino.opt.level=9
-Ddistributed=true

Use classpath of module: orientdb-distributed

In order to debug OrientDB in distributed mode, changed the scope to "runtime" in file distributed/pom.xml:

<groupId>com.orientechnologies</groupId>
<artifactId>orientdb-graphdb</artifactId>
<version>${project.version}</version>
<scope>runtime</scope>

In this way IDE like IntelliJ can start the server correctly that requires graphdb dependency.