The file has been changed since reading it

[jchook]

Often when I try to save a "watched" source file in neovim, I get this warning:

WARNING: The file has been changed since reading it!!!

I'm unsure of the exact cause of this bug. However, this behavior seems basically expected:

1. nvim modifies the file
2. vagrant-fsnotify touches the file, setting the modification date past neovim's known file modification date
3. nvim tries to modify the file, but throws a warning because of the modification date difference

And I think it does not occur in a sequence like this:

1. nvim modifies the file
2. vagrant-fsnotify does not touch the file because of a debounce
3. nvim modifies the file

However, I saw the touch command supports the -d parameter:

       -d, --date=STRING
              parse STRING and use it instead of current time

It would be great if we could somehow subtract a second or something from the modification date.

[jchook]

It looks like there are some known issues with this "file has been changed" warning related to NFS and Samba shares, so this may not be related to fsnofiy.

See:

• https://github.com/neovim/neovim/issues/18290
• https://github.com/neovim/neovim/pull/18665
• https://github.com/neovim/neovim/issues/7270

I have temporarily resolved the issue by remapping my :write shortcut to :write!.