IMPORTANT Please employ the 3lexisFormatterProfile.xml as Eclipse default formatter prior to development and pull requests.
This accounts for all Elexis 3 related development.

Go to Jenkins-CI Builds. Download and unzip the zip file for your machine.

Install Oracle java 1.8 from http://www.java.com/de/download/manual.jsp

Start the Elexis3 application.

You need Java 1.8+. Maven (we use 3.0.5 for our builds, other versions might work). Then you should be able to generate the application and p2 update site using the following calls:

git clone https://github.com/elexis/elexis-3-core
mvn clean install

It will be built for your OS/Window-System/Architecture combination. You will find the executables under ch.elexis.core.p2site/target/products/ch.elexis.core.application.ElexisApp/*/*/*

If you want a complete development environment, try Oomph

This repository hosts the core Elexis 3. It consists of the following plug-ins and features:

• ch.rgw.utility Utilities required to drive Elexis.
• ch.elexis.core Core concepts and interface definitions.
• ch.elexis.core.data Core persistence and functionality packages and classes.
• ch.elexis.core.console.application Headless Elexis application.
• ch.elexis.core.ui User Interface dependent portions. Dependent on Eclipse RCP 3.×.
• ch.elexis.core.application Core UI Elexis Application.

• ch.elexis.core.releng Release Engineering specific parts (Build Target, 3rd party …)

• ch.elexis.core.logging Plug-In for starting ch.qos.logback logging (via slf4j interface)
• ch.elexis.core.logging.feature Feature for logging and Felix-gogo console
• ch.elexis.core.logging.default_configuration Default logging configuration (logback.xml)

• ch.elexis.core.ui.icons Plug-In for central icon management.
• ch.elexis.core.ui.contacts Plug-In for contact management.
• ch.elexis.core.ui.laboratory Plug-In for laboratory related tasks.
• ch.elexis.core.ui.p2 Plug-In to realize client side p2 update tasks
• ch.elexis.core.common.feature Headless Core Feature.
• ch.elexis.core.ui.feature Core UI Feature.
• ch.elexis.core.application.feature Core Application Feature.

For details about the resp. plug-ins/features switch to the respective directory. The plug-ins and features
are contained and inter-dependent as follows: