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Update VC-Dir contents upon revert-buffer

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* lisp/vc/vc-hooks.el (vc-after-revert): New function.
(after-revert-hook): Add it.
This commit is contained in:
Sean Whitton 2025-10-16 17:19:43 +01:00
parent d0d6e5ce65
commit 208241aa83
2 changed files with 17 additions and 9 deletions
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18
lisp/files.el
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@ -7212,23 +7212,24 @@ preserve markers and overlays, at the price of being slower."
The arguments IGNORE-AUTO and NOCONFIRM are as described for `revert-buffer'.
Runs the hooks `before-revert-hook' and `after-revert-hook' at the
start and end.
The function returns non-nil if it reverts the buffer; signals
an error if the buffer is not associated with a file.
The function returns non-nil if it reverts the buffer, and signals an
error if the buffer is not associated with a file.
Calls `revert-buffer-insert-file-contents-function' to reread the
contents of the visited file, with two arguments: the first is the file
name, the second is non-nil if reading an auto-save file.
This function handles only buffers that are visiting files.
Non-file buffers need a custom function."
Non-file buffers need a custom `revert-buffer-function'; see
`revert-buffer'."
(with-current-buffer (or (buffer-base-buffer (current-buffer))
(current-buffer))
(let* ((auto-save-p (and (not ignore-auto)
(recent-auto-save-p)
buffer-auto-save-file-name
(file-readable-p buffer-auto-save-file-name)
(y-or-n-p
"Buffer has been auto-saved recently. Revert from auto-save file? ")))
(y-or-n-p "Buffer has been auto-saved recently. \
Revert from auto-save file? ")))
(file-name (if auto-save-p
buffer-auto-save-file-name
buffer-file-name)))
@ -7254,8 +7255,8 @@ Non-file buffers need a custom function."
;; Effectively copy the after-revert-hook status,
;; since after-find-file will clobber it.
(let ((global-hook (default-value 'after-revert-hook))
(local-hook (when (local-variable-p 'after-revert-hook)
after-revert-hook))
(local-hook (and (local-variable-p 'after-revert-hook)
after-revert-hook))
(inhibit-read-only t))
;; FIXME: Throw away undo-log when preserve-modes is nil?
(funcall
@ -7270,8 +7271,7 @@ Non-file buffers need a custom function."
;; Run after-revert-hook as it was before we reverted.
(setq-default revert-buffer-internal-hook global-hook)
(if local-hook
(setq-local revert-buffer-internal-hook
local-hook)
(setq-local revert-buffer-internal-hook local-hook)
(kill-local-variable 'revert-buffer-internal-hook))
(run-hooks 'revert-buffer-internal-hook))
t)))))

8
lisp/vc/vc-hooks.el
View file

@ -751,6 +751,14 @@ Before doing that, check if there are any old backups and get rid of them."
(when vc-dir-buffers
(vc-dir-resynch-file file))))
(defun vc-after-revert ()
"Update VC-Dir contents after reverting a buffer from disk."
(when-let* (vc-dir-buffers
(backend (vc-backend buffer-file-name)))
(vc-dir-resynch-file buffer-file-name)))
(add-hook 'after-revert-hook #'vc-after-revert)
(defvar vc-menu-entry
'(menu-item "Version Control" vc-menu-map
:filter vc-menu-map-filter))