I had the source decompiled and installed, and was able to recompile and run successfully.  Unfortunately, without my doing anything, not even opening the directory, the entire source code for Minecraft and Forge have simply vanished, leaving and empty directory.  What the hell causes this crap!!!

On the off chance you're not trolling...

Possibly a harddrive failure? When was the last time you checked your drive?

i had this problem as well, everything else loads but there is nothing for src but an empty folder in eclipse

Well, maybe I accidently deleted a wrong folder or something, and managed to get things set up again, sort-of.

 

I still can't get this to work.  I've tried everything, Forge installer, the installer from MCP, used Eclipse, used NetBeans (which I prefer), installed Astyle (already had wine).  Netbeans will now compile the sources, but not to anything that will run, I can't find them in Eclipse for forged while the MCP751 folder has sources but they don't seem complete (nothing compiles with eclipse).  Nevermind me, I give up for now.