Merge from mainline.

12 files changed, 43 insertions, 46 deletions

diff --git a/lisp/vc/add-log.el b/lisp/vc/add-log.el
index f0ea9c68464..f926a164797 100644
--- a/lisp/vc/add-log.el
+++ b/lisp/vc/add-log.el
@@ -813,12 +813,12 @@ non-nil, otherwise in local time."
 
     (unless (equal file-name buffer-file-name)
       (cond
-       ((equal file-name (buffer-file-name (window-buffer (selected-window))))
+       ((equal file-name (buffer-file-name (window-buffer)))
         ;; If the selected window already shows the desired buffer don't show
         ;; it again (particularly important if other-window is true).
         ;; This is important for diff-add-change-log-entries-other-window.
-        (set-buffer (window-buffer (selected-window))))
-       ((or other-window (window-dedicated-p (selected-window)))
+        (set-buffer (window-buffer)))
+       ((or other-window (window-dedicated-p))
         (find-file-other-window file-name))
        (t (find-file file-name))))
     (or (derived-mode-p 'change-log-mode)
diff --git a/lisp/vc/compare-w.el b/lisp/vc/compare-w.el
index ae4fcc99a25..235ebe5a072 100644
--- a/lisp/vc/compare-w.el
+++ b/lisp/vc/compare-w.el
@@ -179,7 +179,7 @@ on third call it again advances points to the next difference and so on."
                            'compare-windows-sync-regexp
                          compare-windows-sync)))
     (setq p1 (point) b1 (current-buffer))
-    (setq w2 (next-window (selected-window)))
+    (setq w2 (next-window))
     (if (eq w2 (selected-window))
         (setq w2 (next-window (selected-window) nil 'visible)))
     (if (eq w2 (selected-window))
diff --git a/lisp/vc/ediff-help.el b/lisp/vc/ediff-help.el
index 833e84b6cea..78d1a6abfd1 100644
--- a/lisp/vc/ediff-help.el
+++ b/lisp/vc/ediff-help.el
@@ -253,7 +253,7 @@ the value of this variable and the variables `ediff-help-message-*' in
 
 
 (defun ediff-indent-help-message ()
-  (let* ((shift (/ (max 0 (- (window-width (selected-window))
+  (let* ((shift (/ (max 0 (- (window-width)
                              (ediff-help-message-line-length)))
                    2))
          (str (make-string shift ?\ )))
diff --git a/lisp/vc/ediff-util.el b/lisp/vc/ediff-util.el
index ec227f44e8f..2f2c71a71e6 100644
--- a/lisp/vc/ediff-util.el
+++ b/lisp/vc/ediff-util.el
@@ -537,7 +537,7 @@ to invocation.")
 ;; to reside.
 (defun ediff-setup-control-buffer (ctl-buf)
   "Set up window for control buffer."
-  (if (window-dedicated-p (selected-window))
+  (if (window-dedicated-p)
       (set-buffer ctl-buf) ; we are in control frame but just in case
     (switch-to-buffer ctl-buf))
   (let ((window-min-height 2))
@@ -1629,7 +1629,7 @@ the width of the A/B/C windows."
             (setq lines (1+ lines)))
           ;; And position the beginning on the right line
           (goto-char beg)
-          (recenter (/ (1+ (max (- (1- (window-height (selected-window)))
+          (recenter (/ (1+ (max (- (1- (window-height))
                                    lines)
                                 1)
                            )
@@ -2818,7 +2818,7 @@ Hit \\[ediff-recenter] to reset the windows afterward."
   (with-output-to-temp-buffer ediff-msg-buffer
     (ediff-with-current-buffer standard-output
       (fundamental-mode))
-    (raise-frame (selected-frame))
+    (raise-frame)
     (princ (ediff-version))
     (princ "\n\n")
     (ediff-with-current-buffer ediff-buffer-A
@@ -3468,7 +3468,7 @@ Without an argument, it saves customized diff argument, if available
           (ediff-with-current-buffer buf
             (goto-char (point-min)))
           (switch-to-buffer buf)
-          (raise-frame (selected-frame)))))
+          (raise-frame))))
   (if (frame-live-p ediff-control-frame)
       (ediff-reset-mouse ediff-control-frame))
   (if (window-live-p ediff-control-window)
diff --git a/lisp/vc/ediff-wind.el b/lisp/vc/ediff-wind.el
index 124bdbd26df..5a14c193344 100644
--- a/lisp/vc/ediff-wind.el
+++ b/lisp/vc/ediff-wind.el
@@ -861,7 +861,7 @@ into icons, regardless of the window manager."
 ;; create a new splittable frame if none is found
 (defun ediff-skip-unsuitable-frames (&optional ok-unsplittable)
   (if (ediff-window-display-p)
-      (let ((wind-frame (window-frame (selected-window)))
+      (let ((wind-frame (window-frame))
              seen-windows)
         (while (and (not (memq (selected-window) seen-windows))
                     (or
@@ -877,7 +877,7 @@ into icons, regardless of the window manager."
           (setq seen-windows (cons (selected-window) seen-windows))
           ;; try new window
           (other-window 1 t)
-          (setq wind-frame (window-frame (selected-window)))
+          (setq wind-frame (window-frame))
           )
         (if (memq (selected-window) seen-windows)
             ;; fed up, no appropriate frames
@@ -939,7 +939,7 @@ into icons, regardless of the window manager."
 
     (setq ctl-frame-iconified-p (ediff-frame-iconified-p ctl-frame))
     (select-frame ctl-frame)
-    (if (window-dedicated-p (selected-window))
+    (if (window-dedicated-p)
         ()
       (delete-other-windows)
       (switch-to-buffer ctl-buffer))
diff --git a/lisp/vc/ediff.el b/lisp/vc/ediff.el
index e9a6a97409c..d35c3e53e9a 100644
--- a/lisp/vc/ediff.el
+++ b/lisp/vc/ediff.el
@@ -1499,7 +1499,7 @@ With optional NODE, goes to that node."
           (if node
               (Info-goto-node node)
             (message "Type `i' to search for a specific topic"))
-          (raise-frame (selected-frame)))
+          (raise-frame))
       (error (beep 1)
              (with-output-to-temp-buffer ediff-msg-buffer
                (ediff-with-current-buffer standard-output
diff --git a/lisp/vc/emerge.el b/lisp/vc/emerge.el
index 0a1bd044125..8d0e8efc75c 100644
--- a/lisp/vc/emerge.el
+++ b/lisp/vc/emerge.el
@@ -1770,7 +1770,7 @@ to the left margin, if they are in windows."
                 (setq lines (1+ lines)))
               ;; And position the beginning on the right line
               (goto-char beg)
-              (recenter (/ (1+ (- (1- (window-height (selected-window)))
+              (recenter (/ (1+ (- (1- (window-height))
                                   lines))
                            2))))))
   (goto-char pos))
diff --git a/lisp/vc/pcvs-util.el b/lisp/vc/pcvs-util.el
index 28ae4ed3de3..2868bb98b29 100644
--- a/lisp/vc/pcvs-util.el
+++ b/lisp/vc/pcvs-util.el
@@ -97,7 +97,7 @@ try to split a new window instead."
 BUF is assumed to be a temporary buffer used from the buffer MAINBUF."
   (interactive (list (current-buffer)))
   (save-current-buffer
-    (let ((win (if (eq buf (window-buffer (selected-window))) (selected-window)
+    (let ((win (if (eq buf (window-buffer)) (selected-window)
                  (get-buffer-window buf t))))
       (when win
         (if (window-dedicated-p win)
@@ -111,8 +111,8 @@ BUF is assumed to be a temporary buffer used from the buffer MAINBUF."
 ;;;           )
           )))
     (with-current-buffer buf
-      (bury-buffer (unless (and (eq buf (window-buffer (selected-window)))
-                                (not (window-dedicated-p (selected-window))))
+      (bury-buffer (unless (and (eq buf (window-buffer))
+                                (not (window-dedicated-p)))
                      buf)))
     (when mainbuf
       (let ((mainwin (or (get-buffer-window mainbuf)
diff --git a/lisp/vc/smerge-mode.el b/lisp/vc/smerge-mode.el
index f61e97216a9..87336b6a357 100644
--- a/lisp/vc/smerge-mode.el
+++ b/lisp/vc/smerge-mode.el
@@ -57,7 +57,6 @@
 
 (defcustom smerge-diff-buffer-name "*vc-diff*"
   "Buffer name to use for displaying diffs."
-  :group 'smerge
   :type '(choice
           (const "*vc-diff*")
           (const "*cvs-diff*")
@@ -69,12 +68,10 @@
           (if (listp diff-switches) diff-switches (list diff-switches)))
   "A list of strings specifying switches to be passed to diff.
 Used in `smerge-diff-base-mine' and related functions."
-  :group 'smerge
   :type '(repeat string))
 
 (defcustom smerge-auto-leave t
   "Non-nil means to leave `smerge-mode' when the last conflict is resolved."
-  :group 'smerge
   :type 'boolean)
 
 (defface smerge-mine
@@ -84,8 +81,7 @@ Used in `smerge-diff-base-mine' and related functions."
      :background "#553333")
     (((class color))
      :foreground "red"))
-  "Face for your code."
-  :group 'smerge)
+  "Face for your code.")
 (define-obsolete-face-alias 'smerge-mine-face 'smerge-mine "22.1")
 (defvar smerge-mine-face 'smerge-mine)
 
@@ -96,8 +92,7 @@ Used in `smerge-diff-base-mine' and related functions."
      :background "#335533")
     (((class color))
      :foreground "green"))
-  "Face for the other code."
-  :group 'smerge)
+  "Face for the other code.")
 (define-obsolete-face-alias 'smerge-other-face 'smerge-other "22.1")
 (defvar smerge-other-face 'smerge-other)
 
@@ -108,8 +103,7 @@ Used in `smerge-diff-base-mine' and related functions."
      :background "#888833")
     (((class color))
      :foreground "yellow"))
-  "Face for the base code."
-  :group 'smerge)
+  "Face for the base code.")
 (define-obsolete-face-alias 'smerge-base-face 'smerge-base "22.1")
 (defvar smerge-base-face 'smerge-base)
 
@@ -118,15 +112,13 @@ Used in `smerge-diff-base-mine' and related functions."
      (:background "grey85"))
     (((background dark))
      (:background "grey30")))
-  "Face for the conflict markers."
-  :group 'smerge)
+  "Face for the conflict markers.")
 (define-obsolete-face-alias 'smerge-markers-face 'smerge-markers "22.1")
 (defvar smerge-markers-face 'smerge-markers)
 
 (defface smerge-refined-change
   '((t nil))
-  "Face used for char-based changes shown by `smerge-refine'."
-  :group 'smerge)
+  "Face used for char-based changes shown by `smerge-refine'.")
 
 (defface smerge-refined-removed
   '((default
@@ -137,7 +129,6 @@ Used in `smerge-diff-base-mine' and related functions."
      :background "#aa2222")
     (t :inverse-video t))
   "Face used for removed characters shown by `smerge-refine'."
-  :group 'smerge
   :version "24.3")
 
 (defface smerge-refined-added
@@ -149,7 +140,6 @@ Used in `smerge-diff-base-mine' and related functions."
      :background "#22aa22")
     (t :inverse-video t))
   "Face used for added characters shown by `smerge-refine'."
-  :group 'smerge
   :version "24.3")
 
 (easy-mmode-defmap smerge-basic-map
@@ -172,7 +162,6 @@ Used in `smerge-diff-base-mine' and related functions."
 
 (defcustom smerge-command-prefix "\C-c^"
   "Prefix for `smerge-mode' commands."
-  :group 'smerge
   :type '(choice (const :tag "ESC"   "\e")
                  (const :tag "C-c ^" "\C-c^" )
                  (const :tag "none"  "")
diff --git a/lisp/vc/vc-git.el b/lisp/vc/vc-git.el
index 07b7d15299f..7e555825e38 100644
--- a/lisp/vc/vc-git.el
+++ b/lisp/vc/vc-git.el
@@ -649,11 +649,18 @@ If toggling on, also insert its message into the buffer."
 It is based on `log-edit-mode', and has Git-specific extensions.")
 
 (defun vc-git-checkin (files _rev comment)
-  (let ((coding-system-for-write vc-git-commits-coding-system))
+  (let* ((file1 (or (car files) default-directory))
+         (root (vc-git-root file1))
+         (default-directory (expand-file-name root))
+         (only (or (cdr files)
+                   (not (equal root (abbreviate-file-name file1)))))
+         (coding-system-for-write vc-git-commits-coding-system))
     (cl-flet ((boolean-arg-fn
                (argument)
                (lambda (value) (when (equal value "yes") (list argument)))))
-      (apply 'vc-git-command nil 0 files
+      ;; When operating on the whole tree, better pass nil than ".", since "."
+      ;; fails when we're committing a merge.
+      (apply 'vc-git-command nil 0 (if only files)
              (nconc (list "commit" "-m")
                     (log-edit-extract-headers
                      `(("Author" . "--author")
@@ -661,7 +668,7 @@ It is based on `log-edit-mode', and has Git-specific extensions.")
                        ("Amend" . ,(boolean-arg-fn "--amend"))
                        ("Sign-Off" . ,(boolean-arg-fn "--signoff")))
                      comment)
-                    (list "--only" "--"))))))
+                    (if only (list "--only" "--")))))))
 
 (defun vc-git-find-revision (file rev buffer)
   (let* (process-file-side-effects
diff --git a/lisp/vc/vc-hooks.el b/lisp/vc/vc-hooks.el
index ae9aa0118ae..c47bc4c7f97 100644
--- a/lisp/vc/vc-hooks.el
+++ b/lisp/vc/vc-hooks.el
@@ -190,7 +190,7 @@ individually should stay local."
 (make-variable-buffer-local 'vc-mode)
 (put 'vc-mode 'permanent-local t)
 
-(defun vc-mode (&optional arg)
+(defun vc-mode (&optional _arg)
   ;; Dummy function for C-h m
   "Version Control minor mode.
 This minor mode is automatically activated whenever you visit a file under
@@ -631,7 +631,7 @@ this function."
 (define-obsolete-function-alias
   'vc-toggle-read-only 'toggle-read-only "24.1")
 
-(defun vc-default-make-version-backups-p (backend file)
+(defun vc-default-make-version-backups-p (_backend _file)
   "Return non-nil if unmodified versions should be backed up locally.
 The default is to switch off this feature."
   nil)
@@ -834,7 +834,7 @@ current, and kill the buffer that visits the link."
       (set-buffer true-buffer)
       (kill-buffer this-buffer))))
 
-(defun vc-default-find-file-hook (backend)
+(defun vc-default-find-file-hook (_backend)
   nil)
 
 (defun vc-find-file-hook ()
@@ -1033,7 +1033,7 @@ current, and kill the buffer that visits the link."
               '((ext-menu-separator "--"))
               ext-binding))))
 
-(defun vc-default-extra-menu (backend)
+(defun vc-default-extra-menu (_backend)
   nil)
 
 (provide 'vc-hooks)
diff --git a/lisp/vc/vc.el b/lisp/vc/vc.el
index 007bbe86f34..fcab6f36c6f 100644
--- a/lisp/vc/vc.el
+++ b/lisp/vc/vc.el
@@ -486,7 +486,7 @@
 ;;   default implementation always returns nil.
 ;;
 ;; - root (file)
-;; 
+;;
 ;;   Return the root of the VC controlled hierarchy for file.
 ;;
 ;; - repository-hostname (dirname)
@@ -505,12 +505,13 @@
 ;;   from ignored files.
 ;;   When called from Lisp code, if DIRECTORY is non-nil, the
 ;;   repository to use will be deduced by DIRECTORY.
-;; 
+;;
 ;; - ignore-completion-table
-;; 
-;;   Return the completion table for files ignored by the version
-;;   control system in `default-directory'.
-;; 
+;;
+;;   Return the completion table for files ignored by the current
+;;   version control system, e.g., the entries in `.gitignore' and
+;;   `.bzrignore'.
+;;
 ;; - previous-revision (file rev)
 ;;
 ;;   Return the revision number that precedes REV for FILE, or nil if no such