In SOLR-5103 we have been discussing improvements to Solr plugin system, with ability to bundle a plugin as zip, and easily install from shell or Admin UI.
This task aims to create a working POC to demonstrate how PF4J (Plugin Framework4J) can be used to bring a very simple plugin packaging and installation system to Solr with a minimum of effort. Code speaks louder than words
The POC effort is a quite large patch and will be cutting some corners to get the feature in the hands of people who can test and evaluate. If there is consensus to add this to Solr, there will be other sub tasks to split up the elephant into committable chunks.
The design document is located here: https://s.apache.org/solr-plugin (Google Doc) - comments are welcome in the document or here.