Add hooks to pre and post upload?

Could you add pre and post hooks for upload in addition the build as documented in the link below?

I would like to use realterm.exe to signal an running realterm instance to close its serial port before the upload, and to re-open it after the upload.

https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5-3rd-party-Hardware-specification#pre-and-post-build-hooks-since-ide-165

Start by reading the linked Arduino 1.5 3rd-party hardware specification section on pre- and post-build hooks, then find the existing build-hook handling and upload entry point in the Arduino IDE 1.x source. Trace where upload begins and ends, and confirm done when equivalent pre- and post-upload hooks run around the upload operation.

Written by the indexing model from the issue text.