Bug 334160

Description DJ Houghton 2011-01-12 14:45:47 EST

Cloned to track release into R36x maintenance branch.

+++ This bug was initially created as a clone of Bug #332971 +++

Currently the user is allowed to specify a System property - org.eclipse.equinox.p2.reconciler.dropins.directory - which points to a location that we will treat as a drop-ins folder. We have had cases where it would be useful to allow the user to specify multiple locations. 

We talked about allowing the property to hold a list of folders but this is hard because the framework currently does not support cascaded System property merging and if we were to change this, changes would have to occur at many levels. (exe, launcher jar, etc)

Tom and I talked briefly about somehow leveraging the links files to do this. And John suggested allowing for variable substitution in the links files, something like:
   path=%company.web.dropins%/web-group
and when we process it, we would look for a "company.web.dropins" System property to do the substitution. 

This would allow the user or product to have multiple link files and drop-ins folders if they wanted.