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master d494833: Improve support for using vc commands in indirect buffer
From: |
Lars Ingebrigtsen |
Subject: |
master d494833: Improve support for using vc commands in indirect buffers |
Date: |
Mon, 5 Oct 2020 02:50:22 -0400 (EDT) |
branch: master
commit d494833d47968fcd97ba549654a259d6fb6c2eee
Author: Nathan Moreau <nathan.moreau@m4x.org>
Commit: Lars Ingebrigtsen <larsi@gnus.org>
Improve support for using vc commands in indirect buffers
* lisp/vc/vc.el (vc-deduce-fileset-1): New defun.
(vc-deduce-fileset): Adapt.
(vc-maybe-buffer-sync): New defun.
(vc-diff): Adapt.
(vc-ediff): Adapt.
(vc-root-diff): Adapt.
(vc-revision-other-window): Adapt (bug#40967).
---
lisp/vc/vc.el | 38 +++++++++++++++++++++++++++-----------
1 file changed, 27 insertions(+), 11 deletions(-)
diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 3852a64..46c44fa 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -1038,7 +1038,9 @@ If the current buffer is in `vc-dir' or Dired mode,
FILESET is the
list of marked files, or the current directory if no files are
marked.
Otherwise, if the current buffer is visiting a version-controlled
-file, FILESET is a single-file list containing that file's name.
+file or is an indirect buffer whose base buffer visits a
+version-controlled file, FILESET is a single-file list containing
+that file's name.
Otherwise, if ALLOW-UNREGISTERED is non-nil and the visited file
is unregistered, FILESET is a single-file list containing the
name of the visited file.
@@ -1052,6 +1054,14 @@ possible values of STATE are explained in `vc-state',
and MODEL in
the returned list.
BEWARE: this function may change the current buffer."
+ (with-current-buffer (or (buffer-base-buffer) (current-buffer))
+ (vc-deduce-fileset-1 not-state-changing
+ allow-unregistered
+ state-model-only-files)))
+
+(defun vc-deduce-fileset-1 (not-state-changing
+ allow-unregistered
+ state-model-only-files)
(let (backend)
(cond
((derived-mode-p 'vc-dir-mode)
@@ -1073,7 +1083,7 @@ BEWARE: this function may change the current buffer."
(derived-mode-p 'dired-mode)))))
(progn ;FIXME: Why not `with-current-buffer'? --Stef.
(set-buffer vc-parent-buffer)
- (vc-deduce-fileset not-state-changing allow-unregistered
state-model-only-files)))
+ (vc-deduce-fileset-1 not-state-changing allow-unregistered
state-model-only-files)))
((and (not buffer-file-name)
(setq backend (vc-responsible-backend default-directory)))
(list backend nil))
@@ -1883,6 +1893,10 @@ state of each file in the fileset."
t (list backend (list rootdir)) rev1 rev2
(called-interactively-p 'interactive)))))
+(defun vc-maybe-buffer-sync (not-urgent)
+ (with-current-buffer (or (buffer-base-buffer) (current-buffer))
+ (when buffer-file-name (vc-buffer-sync not-urgent))))
+
;;;###autoload
(defun vc-diff (&optional historic not-urgent)
"Display diffs between file revisions.
@@ -1895,6 +1909,7 @@ saving the buffer."
(interactive (list current-prefix-arg t))
(if historic
(call-interactively 'vc-version-diff)
+ (vc-maybe-buffer-sync not-urgent)
(let ((fileset (vc-deduce-fileset t)))
(vc-buffer-sync-fileset fileset not-urgent)
(vc-diff-internal t fileset nil nil
@@ -1981,7 +1996,7 @@ saving the buffer."
(interactive (list current-prefix-arg t))
(if historic
(call-interactively 'vc-version-ediff)
- (when buffer-file-name (vc-buffer-sync not-urgent))
+ (vc-maybe-buffer-sync not-urgent)
(vc-version-ediff (cadr (vc-deduce-fileset t)) nil nil)))
;;;###autoload
@@ -1998,7 +2013,7 @@ saving the buffer."
(if historic
;; We want the diff for the VC root dir.
(call-interactively 'vc-root-version-diff)
- (when buffer-file-name (vc-buffer-sync not-urgent))
+ (vc-maybe-buffer-sync not-urgent)
(let ((backend (vc-deduce-backend))
(default-directory default-directory)
rootdir working-revision)
@@ -2038,17 +2053,18 @@ Return nil if the root directory cannot be identified."
If the current file is named `F', the revision is named `F.~REV~'.
If `F.~REV~' already exists, use it instead of checking it out again."
(interactive
- (save-current-buffer
+ (with-current-buffer (or (buffer-base-buffer) (current-buffer))
(vc-ensure-vc-buffer)
(list
(vc-read-revision "Revision to visit (default is working revision): "
(list buffer-file-name)))))
- (vc-ensure-vc-buffer)
- (let* ((file buffer-file-name)
- (revision (if (string-equal rev "")
- (vc-working-revision file)
- rev)))
- (switch-to-buffer-other-window (vc-find-revision file revision))))
+ (with-current-buffer (or (buffer-base-buffer) (current-buffer))
+ (vc-ensure-vc-buffer)
+ (let* ((file buffer-file-name)
+ (revision (if (string-equal rev "")
+ (vc-working-revision file)
+ rev)))
+ (switch-to-buffer-other-window (vc-find-revision file revision)))))
(defun vc-find-revision (file revision &optional backend)
"Read REVISION of FILE into a buffer and return the buffer.
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