From 5ab144c77cda1d56f0dd62606c316c712a0d2563 Mon Sep 17 00:00:00 2001 From: Eli Zaretskii Date: Tue, 21 May 2024 15:34:50 +0300 Subject: ; Improve documentation of backing up files * doc/emacs/files.texi (Backup Copying): Mention that 'backup-by-copying' is safer. Document 'file-precious-flag'. (Bug#71074) --- doc/emacs/files.texi | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'doc/emacs/files.texi') diff --git a/doc/emacs/files.texi b/doc/emacs/files.texi index 393c4728422..01d22564f2e 100644 --- a/doc/emacs/files.texi +++ b/doc/emacs/files.texi @@ -786,6 +786,14 @@ those previous versions. If you want to be able to do that with files hosted by those services when editing them with Emacs, customize @code{backup-by-copying} to a non-@code{nil} value. +@vindex file-precious-flag + Copying the old file for backup is also useful when editing precious +files, because it makes sure the old file keeps its name if something +fails between the backup and the saving of your edits. Alternatively, +you can customize @code{file-precious-flag} to a non-@code{nil} value, +which implies backups by copying and also protects against I/O errors +while saving your edits. + @node Customize Save @subsection Customizing Saving of Files -- cgit v1.2.3