Error using the :GDiff command of fugitive.vim using gvim for windows and msys git 1.7.0.2

Question

I've been using git along with fugitive.vim to manage code when I'm on windows. However, I've run into a problem. According to the documentation, the :GDiff command should a diff window and allow me to stage only parts of a file. However, when I issue the command in a file with changes, I get the following error message:

Is this a problem with windows? vim? fugitive? msysgit? file permissions? Anybody know?

Answer 1

That may be related to the issue 428 of msysgit mentioned in my SO answer.

Try patching the cmd/git.cmd as I describe in my previous answer and see if this help.

Baring that, 2 options remains:

• either a locking problem (the file is locked by a process): an utility like process monitor or process explorer might help to see if it is the case (and what handle exactly there is on that swap file)
• or a Git issue. One good trick is then to install the net-installer of msysgit, which will build the latest version of Git on your Windows. You can then try and see if the problem persists with that updated version.
  Note: third option, trying to downgrade Git, again to rule out any link with that tool.