This page covers the build process for OpenCms versions since 7.0.2. For older versions please refer to this page.
OpenCms provides a source code distribution that you can use to build the OpenCms core. This is only needed if you want to add your own core extensions. To develop the usual kind of website functionality, you should use the OpenCms module mechanism which is much easier to start with and also better documented. Before even considering starting to work on the core, you definitely should have written some OpenCms modules to understand the separation between a module and and a core extension.
The OpenCms core comes with the best possible documentation: The source code itself ;-) This is really not something for the novice Java developer. However, if you have some experience in Java, Java Servlets, JDBC, and XML in general you might take a look. As said before, you should also have already a firm understanding of the OpenCms module API.
Since this is rather deep stuff targeted rather at experts than at beginners, we will not explain every detail of the process. You have been warned.
Note: In case you are using the Eclipse Platform for development, you don't need an installation of Ant, it is included in Eclipse.
Apache Ant is a Java based build tool. In theory it is kind of like make without make's wrinkles. You need Ant version 1.6 or later to build the OpenCms core. Ant is part of the Jarkarta Apache Project and can be downloaded here. Please check the Ant documentation to make sure you understand the basic principles behind Ant.
Ant installation is described in the Ant manual. It requires that you have set up your path to Java correctly. Make sure Ant runs before proceeding.
Check out the latest OpenCms source distribution from the repository as described here. It contains all classes necessary to build the OpenCms core. You will then end up with the following structure in your work directory:
/opencms /lib/compile <= Necessary libraries for compilation /lib/runtime <= Necessary runtime libraries /modules <= Module resources /src <= OpenCms Core source tree /src-components <= Component sources (Upload applet, Ant tasks) /src-modules <= Module sources /src-setup <= Setup/Update Wizard sources /test <= JUnit test sources /webapp <= OpenCms web application /webapp/setup <= Setup Wizard web application /webapp/update <= Update Wizard web application build.xml <= Ant build script
Ok this is the easy part. Call up a commandline, move to the
/opencms directory (where the file
build.xml resides) of the OpenCms source tree. In your commandline, enter the following:
That's it! This will build a complete OpenCms distribution. This will create a new
/buildcms directory (at the same level as the
/opencms directory) and will look like this after Ant is finished:
/opencms <= Unchanged /buildcms <= New created directory /build <= Contains the compiled OpenCms classes and jar files /zip <= The OpenCms distribution files will be placed here
The final result of the compilation will be a ZIP file which will be placed in the
/zip directory. This ZIP is exactly the same layout as the OpenCms binary distributions, so it will contain the
Now that you have your new OpenCms binary distribution, you simply need to follow the Server installation guide for your server setup. Please make sure you don't mess up any existing installation. Best have a separate machine that is used only for testing and development.
There are several more targets in the
build.xml that might be useful for you. Here's a short overview:
opencms.war, but does not create the binary distribution ZIP file.
CATALINA_HOME), calling this target will have Ant updating the OpenCms classes on your machine. This is done by replacing the files in the Tomcat
webapps/opencmsdirectory. If you have renamed
opencms.war, or if your Tomcat is not installed the usual way, you will have to overwrite some build properties, like
Sep 26, 2016 - OpenCms 10.5 Beta provides a feature complete look at OpenCms 10.5. This will be the only pre-release version before OpenCms 10.5.0 is published, which is expected by the end of November. Only minor GUI updates, as well as improvements to the demo template, will be made for the final release.
Sep 26, 2016 - The OpenCms 10.5 Beta release notes contain detailed information about the new features and fixes in this beta version.
Jun 14, 2016 - Being the greatest OpenCms update for years, version 10 brings a vastly improved user experience that combines the intuitive "Direct Edit" approach of OpenCms with a new, well integrated Lauchpad app center. OpenCms 10.0.1 is a maintenance update for 10.0.0 installations. It fixes several issues that persisted in previous releases. This version focuses on performance and stability.
Jun 14, 2016 - The OpenCms 10.0.1 release notes contain detailed information about the updates and fixes in this version.