I am provisioning Eclipse and Eclipse plugins to an Ubuntu Virtual Machine using vagrant and chef. All plugins need to be installed using equinox.p2. Here is an example of installing Buildship plugin:
eclipse -application org.eclipse.equinox.p2.director -noSplash -repository http://download.eclipse.org/buildship/updates/e46/releases/1.0 -installIUs org.eclipse.buildship.feature.group
In many cases a plugin only provides a marketplace Install button and no update site URL and no details on plugin id.
How can I get the update site URL and plugin id for such a plugin?
This information is hidden unless you own the entry on the marketplace. However you can obtain it using the marketplace API. For instance getting the details on the OS X Eclipse Launcher, by issuing curl http://marketplace.eclipse.org/node/364668/api/p on the command line and you'll get all the details in the form of XML. The update site URL is in updateurl, and the feature(s) are listed in ius. Replace the number with the identifier of the entry in the marketplace. You can find it by looking at the URL assigned to the Install link button.
来源：https://stackoverflow.com/questions/38955255/how-to-get-repository-url-and-plugin-id-from-marketplace-for-eclipse-plugin