I am working on a ruby on rails app. All of the sudden the command line tab complete stopped working for vim, only for files though, and only for the vim command (i.e. works for other commands, ls, rm etc.)

After further investigation - this only occurs in a specific directory, the home directory of my rails app. If I go into a sub directory in my rails app, or any other directory on my machine, the tab complete works again. If I go into the root directory of any other rails app, it works. I also tried renaming the diretory, and copying the contents of the directory to another directory, and that did not work either.

It only does not work for files, and works for any other command - ls, rm etc. But when I do vim /path/to/file/, then tab to see a list of files in that directory, only other directories show, not files.

I am using ubuntu 12.04. Also, I tried re-installing vim, re-booting, removing ~/.viminfo (there was no vimrc file) that didn't work. Any help would be appreciated!