On Thu, Feb 11, 2016 at 8:43 PM, Mark Phippard <markphip@gmail.com> wrote:
Correct me if I am wrong, but for any plugin to provide Extensions points they have to be specified in the plugin.xml of the plugin. So you would want to look at the subclipse.ui and subclipse.core plugins to see what extensions points exist and go from there.

Mark

The org.tigris.subversion.subclipse.ui.commitDialogToolBarActions extension point lets you add custom actions to the commit dialog toolbar.  But I don't know that it would do you much good because your action won't have any context by which to know what files are being committed.