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authorDavid Beswick <dlbeswick@gmail.com>2018-04-17 23:53:55 +0200
committerLars Ingebrigtsen <larsi@gnus.org>2018-04-17 23:54:14 +0200
commit2e54ffebb8555d23f72c7b450b481f0335562b0d (patch)
treea757dd55fc5154275ec5d9c43baa18f5955e833e /lisp/startup.el
parentd2d1f39536e32dc6789ee2d26aeda05a405d47d3 (diff)
downloademacs-2e54ffebb8555d23f72c7b450b481f0335562b0d.tar.gz
Don't display an initial-buffer-choice buffer twice
* lisp/startup.el (command-line-1): Don't display an initial-buffer-choice buffer twice if the user is also explicitly specifying it on the mode line, but shift it to the initial place (bug#29999). Copyright-paperwork-exempt: yes
Diffstat (limited to 'lisp/startup.el')
-rw-r--r--lisp/startup.el9
1 files changed, 7 insertions, 2 deletions
diff --git a/lisp/startup.el b/lisp/startup.el
index 1faeabf23b8..f6907a821b9 100644
--- a/lisp/startup.el
+++ b/lisp/startup.el
@@ -2504,7 +2504,12 @@ nil default-directory" name)
(insert (substitute-command-keys initial-scratch-message))
(set-buffer-modified-p nil))))
- ;; Prepend `initial-buffer-choice' to `displayable-buffers'.
+ ;; Prepend `initial-buffer-choice' to `displayable-buffers'. If
+ ;; the buffer is already a member of that list then shift the
+ ;; buffer to the head of the list. The shift behavior is intended
+ ;; to prevent the same buffer being displayed in two windows when
+ ;; an `initial-buffer-choice' function happens to return the head
+ ;; of `displayable-buffers'.
(when initial-buffer-choice
(let ((buf
(cond ((stringp initial-buffer-choice)
@@ -2517,7 +2522,7 @@ nil default-directory" name)
(error "initial-buffer-choice must be a string, a function, or t.")))))
(unless (buffer-live-p buf)
(error "initial-buffer-choice is not a live buffer."))
- (setq displayable-buffers (cons buf displayable-buffers))))
+ (setq displayable-buffers (cons buf (delq buf displayable-buffers)))))
;; Display the first two buffers in `displayable-buffers'. If
;; `initial-buffer-choice' is non-nil, its buffer will be the