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auto save of remote files

From: Glenn Morris
Subject: auto save of remote files
Date: Fri, 29 Mar 2002 14:51:27 +0000
User-agent: Gnus/5.090005 (Oort Gnus v0.05) Emacs/21.2 (i686-pc-linux-gnu)

In emacs-21.2, `auto-save-file-name-transforms' is defined in files.el as

(defcustom auto-save-file-name-transforms
     ,(expand-file-name "\\2" temporary-file-directory)))
" ...
The default value is set up to put the auto-save file into the
temporary directory (see the variable `temporary-file-directory') for
editing a remote file."

This means that a remote file of the form:


will be transformed to


If one simultaneously edits a second remote file with the same basename,
but in a different directory, for example:


then it is transformed to the same local file.

Maybe auto-save could use the same trick as `make-backup-file-name-1' here.
When all backups are to be put in the same directory, they are converted as

/path/to/dir1/foo.el -> /path/to/backups/!path!to!dir1!foo.el

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