Eli Zaretskii schrieb am Fr., 20. Jan. 2017 um 09:45 Uhr: > > From: Glenn Morris > > Date: Thu, 19 Jan 2017 15:29:04 -0500 > > Cc: 25478@debbugs.gnu.org > > > > Philipp Stephani wrote: > > > > > The Emacs manual states: > > > > > > "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." > > > > > > However, there is a significant difference between auto-saving and > > > explicit saving, even in this mode: auto-saving doesn't run > > > before-save-hook, after-save-hook, write-contents-functions, or > > > write-file-functions. Either some of these hooks should be run during > > > auto-saving if auto-save-visited-file-name is t, or new hooks should be > > > created to run in this case. > > > > The phrasing of the manual can easily be changed if it's creating > > unreasonable expectations. > > I've done that now on the release branch. > > > Do you have a use case for autosave running hooks? > > One could argue that it is a low-level > > operation that should not be modifiable in this way. > > Auto-save has its own hook. But that's just the tip of an iceberg, > because nowadays various modes can completely change what happens at > save-buffer time by using the hooks mentioned above, and those hooks > run only when basic-save-buffer is invoked; they won't be run during > auto-saving. > > And there are other differences, too. E.g., if save-buffer asks the > user for a suitable encoding, it will record the value used in > buffer-file-coding-system, so that future saves reuse that > automatically. Auto-saving doesn't record the value, so if the user > doesn't change the buffer's file encoding manually, she will be > prompted to provide an encoding on every auto-save. > > All in all, I think this option is subtly dangerous and should be > either deprecated or completely reimplemented to invoke > basic-save-buffer instead. I'm quite sure this option made sense in > the past, when complications with encoding and save-related hooks > didn't exist, but that is no longer the case in Emacs these days. > If someone thinks using this option will allow them not to bother with > saving their edits, they are in for an unpleasant surprise. > > That's quite unfortunate, as not having to bother with saving edits manually is a very desirable feature that I think Emacs should offer out of the box. If you really want to deprecate auto-save-visited-file-name, how about adding a simple global minor mode that invokes save-some-buffers from an idle timer to files.el?