[pacman-dev] Disk Space

What if we checked for disk space on all volumes, prior to the processing of the users command. If the function detects that disk space is lower than a certain amount, say 100 mb, to at least warn the user? This would of course be a temporary solution, for a more permanent possibility we could implement two functions that work in conjunction with each other. The first function would check the downloads to ensure they completed successfully, if they did then it would pass the work to a second function that checks the extracted package size against all mounted volumes, or at least the size of the volumes of the major installation location (/usr, /etc, /var, etc) Does this make any sense or am I barking up the wrong tree? Matt