Finding the Eclipse Version Number

Question

I have posted how to find it in Eclipse Gallileo, but if anyone has information on older versions feel free to post it below.

Answer 1

There is a system property eclipse.buildId (for example, for Eclipse Luna, I have 4.4.1.M20140925-0400 as a value there).

I'm not sure in which version of Eclipse did this property become available.

Also, dive right in and explore all the available system properties -- there is quite a bit of information available under eclipse.*, os.* osgi.* and org.osgi.* namespaces.

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UPDATE! After experimenting with different Eclipse versions, it seems that eclipse.buildId system property is not the way to go. For example, on Eclipse Luna 4.4.0, it gives the result of 4.4.2.M20150204-1700 which is obviously incorrect.

I suspect eclipse.buildId system property is set to the version of org.eclipse.platform plugin. Unfortunately, this does not (always) give the correct result. However, good news is that I have a solution with working code sample which I will outline in a separate answer.

Answer 2

Here is a working code snippet that will print out the full version of currently running Eclipse (or any RCP-based application).

String product = System.getProperty("eclipse.product");
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint point = registry.getExtensionPoint("org.eclipse.core.runtime.products");
Logger log = LoggerFactory.getLogger(getClass());
if (point != null) {
  IExtension[] extensions = point.getExtensions();
  for (IExtension ext : extensions) {
    if (product.equals(ext.getUniqueIdentifier())) {
      IContributor contributor = ext.getContributor();
      if (contributor != null) {
        Bundle bundle = Platform.getBundle(contributor.getName());
        if (bundle != null) {
          System.out.println("bundle version: " + bundle.getVersion());
        }
      }
    }
  }
}

It looks up the currently running "product" extension and takes the version of contributing plugin.

On Eclipse Luna 4.4.0, it gives the result of 4.4.0.20140612-0500 which is correct.