I don't need saving. How to keep Emacs buffers in sync with files ?

Question

I want to have all my file buffers always synchronized with the file content on disk. Is is possible? (preferably as a mode)

If you think it is unsafe, than I will just say that emacs undo + git is more than enough for me and I find explicit saving and reverting (if other program changes the file) obsolete safety feature.

Answer 1

Sounds like you want auto-revert-mode (or more likely global-auto-revert-mode).

Answer 2

Set the "auto-save-interval" to 1. That will save after each character you type. It will save to the "save" file, rather than the actual file, but your work will be protected.

Another option is this: http://www.litchie.net/programs/real-auto-save.html

Answer 3

To bring it all together:

If you want auto-saving to be done in the visited file rather than in a separate auto-save file, set the variable auto-save-visited-file-name to a non-nil value. In this mode, there is no real difference between auto-saving and explicit saving.

http://www.gnu.org/software/emacs/manual/html%5Fnode/emacs/Auto-Save-Files.html#Auto-Save-Files

This makes your auto-saves go into the file you are working on, and not an external one.

Then you can set auto-save-interval to 1, and enable global-auto-revert-mode and you're all set.

I think that does it for you...