From: Juri Linkov <juri@linkov.net>
To: Dmitry Gutov <dgutov@yandex.ru>
Cc: 52349@debbugs.gnu.org
Subject: bug#52349: 29.0.50; vc-git and diff-mode: stage hunks
Date: Sat, 12 Feb 2022 21:42:50 +0200 [thread overview]
Message-ID: <86v8xjx45h.fsf@mail.linkov.net> (raw)
In-Reply-To: <36b963e4-5af7-dd9e-af92-4404541b9f4d@yandex.ru> (Dmitry Gutov's message of "Sat, 12 Feb 2022 03:43:49 +0200")
[-- Attachment #1: Type: text/plain, Size: 2115 bytes --]
> But could you explain the case when the changes to 'vc-diff-internal' are
> going to be used? If those are only for log-edit-show-diff, I think it'd be
> better if the new logic was implemented in the new value of
> log-edit-diff-function, rather than having it spliced into the common code
> path. Would that result in a lot of code duplication?
Not much code duplication, thanks for the suggestion, the patch below
sets log-edit-diff-function for log-edit-show-diff.
> It might also be worth it to thread the 'patch-buffer' value through the
> backend method arguments (the actual value will be the patch string), so
> that vc-git-checkin gets it in the 4th argument, rather than having it call
> (derived-mode-p 'diff-mode) (this feels a little brittle: I suppose which
> buffer is current during this call might change in the future). It would
> also automatically weed out backends which don't support this feature,
> rather than having an attempt to commit from a diff buffer using Hg fail
> silently.
I agree that in the first version ‘(derived-mode-p 'diff-mode)’ was brittle.
But changing the established API with a new argument doesn't look right.
So the next version below uses the buffer-local variable ‘vc-patch-string’.
In other backends such as Hg it shouldn't fail silently, but it will be
just less granular, and will commit whole files instead of edited diffs.
There is a new problem however. After starting vc-log-edit from *vc-diff*,
and using log-edit-show-diff, it reuses the original buffer *vc-diff*.
This is not a problem, because the buffer-local variable ‘vc-patch-string’
is saved in the *vc-log* buffer. But after deleting *vc-diff*, log-edit-done
fails on the deleted vc-parent-buffer with
Debugger entered--Lisp error: (error "Selecting deleted buffer")
vc-finish-logentry()
funcall-interactively(vc-finish-logentry)
log-edit-done()
But this is an old problem. The same error is signaled
after typing ‘v’ in *vc-dir* buffer, then deleting the
original *vc-dir* buffer, and trying to type ‘C-c C-c’
(log-edit-done) in the *vc-log* buffer.
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: vc-patch-string.patch --]
[-- Type: text/x-diff, Size: 6034 bytes --]
diff --git a/lisp/vc/diff-mode.el b/lisp/vc/diff-mode.el
index 0bf7899246..50f68bef70 100644
--- a/lisp/vc/diff-mode.el
+++ b/lisp/vc/diff-mode.el
@@ -2859,6 +2859,15 @@ diff-syntax-fontify-props
(forward-line 1)))
(nreverse props)))
+;;;###autoload
+(defun diff-vc-deduce-fileset ()
+ (let ((backend (vc-responsible-backend default-directory))
+ files)
+ (save-excursion
+ (goto-char (point-min))
+ (while (progn (diff-file-next) (not (eobp)))
+ (push (diff-find-file-name nil t) files)))
+ (list backend (nreverse files) nil nil 'patch)))
(defun diff--filter-substring (str)
(when diff-font-lock-prettify
diff --git a/lisp/vc/vc-dispatcher.el b/lisp/vc/vc-dispatcher.el
index 5c664d58f1..dc141fd650 100644
--- a/lisp/vc/vc-dispatcher.el
+++ b/lisp/vc/vc-dispatcher.el
@@ -653,9 +653,14 @@ vc-log-edit
(mapcar
(lambda (file) (file-relative-name file root))
',fileset))))
- (log-edit-diff-function . vc-diff)
+ (log-edit-diff-function
+ . ,(if (buffer-local-value 'vc-patch-buffer vc-parent-buffer)
+ 'vc-diff-patch 'vc-diff))
(log-edit-vc-backend . ,backend)
- (vc-log-fileset . ,fileset))
+ (vc-log-fileset . ,fileset)
+ ,@(if (buffer-local-value 'vc-patch-buffer vc-parent-buffer)
+ `((vc-patch-string . ,(with-current-buffer vc-parent-buffer
+ (buffer-string))))))
nil
mode)
(set-buffer-modified-p nil)
@@ -753,7 +758,8 @@ vc-finish-logentry
(defun vc-dispatcher-browsing ()
"Are we in a directory browser buffer?"
(or (derived-mode-p 'vc-dir-mode)
- (derived-mode-p 'dired-mode)))
+ (derived-mode-p 'dired-mode)
+ (derived-mode-p 'diff-mode)))
;; These are unused.
;; (defun vc-dispatcher-in-fileset-p (fileset)
diff --git a/lisp/vc/vc-git.el b/lisp/vc/vc-git.el
index 208cbee0e6..4eb114633d 100644
--- a/lisp/vc/vc-git.el
+++ b/lisp/vc/vc-git.el
@@ -943,12 +943,20 @@ vc-git-checkin
(if (eq system-type 'windows-nt)
(let ((default-directory (file-name-directory file1)))
(make-nearby-temp-file "git-msg")))))
+ (when vc-patch-string
+ (let ((patch-file (make-temp-file "git-patch")))
+ (with-temp-file patch-file
+ (insert vc-patch-string))
+ (unwind-protect
+ (apply #'vc-git-command nil 0 patch-file
+ (list "apply" "--cached"))
+ (delete-file patch-file))))
(cl-flet ((boolean-arg-fn
(argument)
(lambda (value) (when (equal value "yes") (list argument)))))
;; When operating on the whole tree, better pass "-a" than ".", since "."
;; fails when we're committing a merge.
- (apply #'vc-git-command nil 0 (if only files)
+ (apply #'vc-git-command nil 0 (if (and only (not vc-patch-string)) files)
(nconc (if msg-file (list "commit" "-F"
(file-local-name msg-file))
(list "commit" "-m"))
@@ -966,7 +974,8 @@ vc-git-checkin
(write-region (car args) nil msg-file))
(setq args (cdr args)))
args)
- (if only (list "--only" "--") '("-a")))))
+ (unless vc-patch-string
+ (if only (list "--only" "--") '("-a"))))))
(if (and msg-file (file-exists-p msg-file)) (delete-file msg-file))))
(defun vc-git-find-revision (file rev buffer)
diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index a6124acadd..1b30e9b671 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -1102,6 +1102,8 @@ vc-deduce-fileset-1
(vc-dir-deduce-fileset state-model-only-files))
((derived-mode-p 'dired-mode)
(dired-vc-deduce-fileset state-model-only-files not-state-changing))
+ ((derived-mode-p 'diff-mode)
+ (diff-vc-deduce-fileset))
((setq backend (vc-backend buffer-file-name))
(if state-model-only-files
(list backend (list buffer-file-name)
@@ -1114,7 +1116,8 @@ vc-deduce-fileset-1
(or (buffer-file-name vc-parent-buffer)
(with-current-buffer vc-parent-buffer
(or (derived-mode-p 'vc-dir-mode)
- (derived-mode-p 'dired-mode)))))
+ (derived-mode-p 'dired-mode)
+ (derived-mode-p 'diff-mode)))))
(progn ;FIXME: Why not `with-current-buffer'? --Stef.
(set-buffer vc-parent-buffer)
(vc-deduce-fileset-1 not-state-changing allow-unregistered state-model-only-files)))
@@ -1230,6 +1233,9 @@ vc-next-action
(error "Fileset files are missing, so cannot be operated on"))
((eq state 'ignored)
(error "Fileset files are ignored by the version-control system"))
+ ((eq model 'patch)
+ (setq-local vc-patch-buffer t)
+ (vc-checkin files backend))
((or (null state) (eq state 'unregistered))
(cond (verbose
(let ((backend (vc-read-backend "Backend to register to: ")))
@@ -1779,6 +1785,24 @@ vc-diff-finish
(defvar vc-diff-added-files nil
"If non-nil, diff added files by comparing them to /dev/null.")
+(defvar vc-patch-buffer nil)
+(defvar vc-patch-string nil)
+
+(defun vc-diff-patch ()
+ (let ((buffer "*vc-diff*")
+ (patch-string vc-patch-string))
+ (vc-setup-buffer buffer)
+ (set-buffer buffer)
+ (let ((buffer-undo-list t)
+ (inhibit-read-only t))
+ (insert patch-string))
+ (setq buffer-read-only t)
+ (diff-mode)
+ (setq-local diff-vc-backend (vc-responsible-backend default-directory))
+ (setq-local revert-buffer-function (lambda (_ _) (vc-diff-patch)))
+ (pop-to-buffer (current-buffer))
+ (vc-run-delayed (vc-diff-finish (current-buffer) nil))))
+
(defun vc-diff-internal (async vc-fileset rev1 rev2 &optional verbose buffer)
"Report diffs between two revisions of a fileset.
Output goes to the buffer BUFFER, which defaults to *vc-diff*.
next prev parent reply other threads:[~2022-02-12 19:42 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-07 8:59 bug#52349: 29.0.50; vc-git and diff-mode: stage hunks Manuel Uberti via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-12-07 17:03 ` Juri Linkov
2021-12-07 17:08 ` Manuel Uberti via Bug reports for GNU Emacs, the Swiss army knife of text editors
2021-12-07 19:04 ` Juri Linkov
2021-12-07 17:10 ` Dmitry Gutov
2021-12-07 19:06 ` Juri Linkov
2021-12-08 2:29 ` Dmitry Gutov
2021-12-08 18:57 ` Juri Linkov
2021-12-09 23:17 ` Dmitry Gutov
2022-02-08 19:57 ` Juri Linkov
2022-02-12 1:43 ` Dmitry Gutov
2022-02-12 19:42 ` Juri Linkov [this message]
2022-02-13 1:32 ` Dmitry Gutov
2022-02-13 19:48 ` Juri Linkov
2022-02-13 22:51 ` Dmitry Gutov
2022-02-13 19:56 ` Juri Linkov
2022-02-13 22:41 ` Dmitry Gutov
2022-08-21 16:07 ` Juri Linkov
2022-02-13 22:37 ` Dmitry Gutov
2022-08-21 18:53 ` Juri Linkov
2022-08-24 2:06 ` Dmitry Gutov
2022-08-24 18:20 ` Juri Linkov
2022-08-24 20:20 ` Dmitry Gutov
2022-08-27 20:07 ` Juri Linkov
2022-08-28 0:40 ` Dmitry Gutov
2022-08-28 19:45 ` Juri Linkov
2022-08-28 23:34 ` Dmitry Gutov
2022-09-08 19:29 ` Juri Linkov
2022-09-08 22:48 ` Sean Whitton
2022-09-10 1:36 ` Dmitry Gutov
2022-09-11 15:05 ` Juri Linkov
2022-09-11 21:57 ` Dmitry Gutov
2022-09-12 18:19 ` Juri Linkov
2022-09-19 2:09 ` Dmitry Gutov
2022-09-19 6:50 ` Juri Linkov
2022-09-19 12:57 ` Dmitry Gutov
2022-10-02 18:51 ` Juri Linkov
2022-11-04 1:32 ` Dmitry Gutov
2022-08-26 17:11 ` Filipp Gunbin
2022-08-27 19:56 ` Juri Linkov
2021-12-07 20:07 ` Lars Ingebrigtsen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=86v8xjx45h.fsf@mail.linkov.net \
--to=juri@linkov.net \
--cc=52349@debbugs.gnu.org \
--cc=dgutov@yandex.ru \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.