Brass water pipe repair after nailing through both sides

[veitchy]

Well to put this simple, I installed new floorboards and while fixing them down with no head nails and accidentally went through the a brass water pipe the nail has gone straight through and came out the bottom so there two holes.

It has taken a while for it to happen and I came home to find a leak coming through a light ceiling rose in the kitchen. I've removed the floor boards and turned off the water what should I do temporarily and also more permanently

[lets have a look]

It will be a copper pipe,but on what ? cold water,hot water,heating pipe,post a photo please