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| author | Michael Albinus <michael.albinus@gmx.de> | 2021-05-10 13:42:48 +0200 |
|---|---|---|
| committer | Michael Albinus <michael.albinus@gmx.de> | 2021-05-10 13:42:48 +0200 |
| commit | 02c80307f13f7ffe3dc024aee72e47060b4a1996 (patch) | |
| tree | 5316901517629c1151db2d43af4e3fba40a859c0 /doc/lispref | |
| parent | fafe912bd3e952835bb5876aab8c7bda2f4fee24 (diff) | |
| download | emacs-02c80307f13f7ffe3dc024aee72e47060b4a1996.tar.gz | |
Extend meaning of UNIQUIFY `auto-save-file-name-transforms'. (Bug#47493)
* doc/lispref/backups.texi (Auto-Saving): Explain UNIQUIFY being a
secure hash in auto-save-file-name-transforms.
* etc/NEWS: Mention change in `auto-save-file-name-transforms'.
* lisp/files.el (auto-save-file-name-transforms): Adapt docstring.
(make-auto-save-file-name): Care, if UNIQ is a secure hash symbol.
Diffstat (limited to 'doc/lispref')
| -rw-r--r-- | doc/lispref/backups.texi | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/doc/lispref/backups.texi b/doc/lispref/backups.texi index c0a4065bdbf..85a4f9e0acc 100644 --- a/doc/lispref/backups.texi +++ b/doc/lispref/backups.texi @@ -481,6 +481,12 @@ all directory separators were changed to @samp{!} to prevent clashes. (This will not work correctly if your filesystem truncates the resulting name.) +If @var{uniquify} is one of the members of +@code{secure-hash-algorithms}, Emacs constructs the nondirectory part +of the auto-save file name by applying that @code{secure-hash} to the +buffer file name. This avoids any risk of excessively long file +names. + All the transforms in the list are tried, in the order they are listed. When one transform applies, its result is final; no further transforms are tried. |