I have a set of favorite Eclipse plugins, that I need to install every time I install new Eclipse. I would also like to have a way to install all those plugins in [semi-]aut
if I understand your question right, copying the plugin directory in an other eclipse plugin directory should work.
You can install all your favorite plugins in your own eclipse, then zip your plugin folder under your eclipse installation directory.By unzipping it under any eclipse directory you can instal all your favorite plugins at once.