[elpa] master 7964c46 25/25: Merge commit '069a92590000269a9a5b0b7aebbae9595675a59c' from diff-hl

[Dmitry Gutov]

branch: master
commit 7964c46d453e48de3e9792de0759aa17cf9bf38d
Merge: cd8bbda 069a925
Author: Dmitry Gutov <address@hidden>
Commit: Dmitry Gutov <address@hidden>

    Merge commit '069a92590000269a9a5b0b7aebbae9595675a59c' from diff-hl
---
 packages/diff-hl/LICENSE            | 674 ++++++++++++++++++++++++++++++++++++
 packages/diff-hl/README.md          |   2 +-
 packages/diff-hl/diff-hl-dired.el   |   8 +-
 packages/diff-hl/diff-hl-flydiff.el |   9 +-
 packages/diff-hl/diff-hl-margin.el  |  68 +++-
 packages/diff-hl/diff-hl.el         | 142 +++++---
 6 files changed, 829 insertions(+), 74 deletions(-)

diff --git a/packages/diff-hl/LICENSE b/packages/diff-hl/LICENSE
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/packages/diff-hl/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/packages/diff-hl/README.md b/packages/diff-hl/README.md
index 725466b..0ed1bdf 100644
--- a/packages/diff-hl/README.md
+++ b/packages/diff-hl/README.md
@@ -43,7 +43,7 @@ diff-hl-margin-mode
 Requirements
 =====
 
-Emacs 24+. On OS X, Emacs 24.3 or higher is recommended.
+Emacs 24.3+.
 
 Notes
 =====
diff --git a/packages/diff-hl/diff-hl-dired.el 
b/packages/diff-hl/diff-hl-dired.el
index 895341b..947c2b6 100644
--- a/packages/diff-hl/diff-hl-dired.el
+++ b/packages/diff-hl/diff-hl-dired.el
@@ -1,6 +1,6 @@
 ;;; diff-hl-dired.el --- Highlight changed files in Dired -*- lexical-binding: 
t -*-
 
-;; Copyright (C) 2012-2015  Free Software Foundation, Inc.
+;; Copyright (C) 2012-2017  Free Software Foundation, Inc.
 
 ;; This file is part of GNU Emacs.
 
@@ -124,7 +124,7 @@ status indicators."
                                 (value (cdr (assoc dir dirs-alist))))
                            (unless (eq value type)
                              (cond
-                              ((eq type 'up-to-date))
+                              ((eq state 'up-to-date))
                               ((null value)
                                (push (cons dir type) dirs-alist))
                               ((not (eq type 'ignored))
@@ -132,7 +132,9 @@ status indicators."
                        (push (cons file type) files-alist)))))
                (unless more-to-come
                  (diff-hl-dired-highlight-items
-                  (append dirs-alist files-alist))))))
+                  (append dirs-alist files-alist))))
+             (unless more-to-come
+               (kill-buffer diff-hl-dired-process-buffer))))
          )))))
 
 (defun diff-hl-dired-status-files (backend dir files update-function)
diff --git a/packages/diff-hl/diff-hl-flydiff.el 
b/packages/diff-hl/diff-hl-flydiff.el
index 7f0c6c7..33cbfbd 100644
--- a/packages/diff-hl/diff-hl-flydiff.el
+++ b/packages/diff-hl/diff-hl-flydiff.el
@@ -133,6 +133,7 @@ This requires the external program `diff' to be in your 
`exec-path'."
            (rev (diff-hl-flydiff-create-revision
                  file
                  (diff-hl-flydiff/working-revision file))))
+      ;; FIXME: When against staging, do it differently!
       (diff-no-select rev (current-buffer) "-U 0 --strip-trailing-cr" 'noasync
                       (get-buffer-create " *diff-hl-diff*")))))
 
@@ -140,6 +141,8 @@ This requires the external program `diff' to be in your 
`exec-path'."
   (unless (or
            (not diff-hl-mode)
            (= diff-hl-flydiff-modified-tick (buffer-modified-tick))
+           (not buffer-file-name)
+           (not (file-exists-p buffer-file-name))
            (file-remote-p default-directory))
     (diff-hl-update)))
 
@@ -148,9 +151,9 @@ This requires the external program `diff' to be in your 
`exec-path'."
 
 ;;;###autoload
 (define-minor-mode diff-hl-flydiff-mode
-  "Highlight diffs on-the-fly"
-  :lighter ""
-  :global t
+  "Perform highlighting on-the-fly.
+This is a global minor mode.  It alters how `diff-hl-mode' works."
+  :lighter "" :global t
   (if diff-hl-flydiff-mode
       (progn
         (advice-add 'diff-hl-overlay-modified :override #'ignore)
diff --git a/packages/diff-hl/diff-hl-margin.el 
b/packages/diff-hl/diff-hl-margin.el
index 32aa123..dfc1928 100644
--- a/packages/diff-hl/diff-hl-margin.el
+++ b/packages/diff-hl/diff-hl-margin.el
@@ -1,6 +1,6 @@
 ;;; diff-hl-margin.el --- Highlight buffer changes on margins -*- 
lexical-binding: t -*-
 
-;; Copyright (C) 2012-2015  Free Software Foundation, Inc.
+;; Copyright (C) 2012-2017  Free Software Foundation, Inc.
 
 ;; This file is part of GNU Emacs.
 
@@ -44,6 +44,38 @@
   "Highlight buffer changes on margin"
   :group 'diff-hl)
 
+(defface diff-hl-margin-insert
+  '((default :inherit diff-hl-insert))
+  "Face used to highlight inserted lines on the margin.")
+
+(defface diff-hl-margin-delete
+  '((default :inherit diff-hl-delete))
+  "Face used to highlight deleted lines on the margin.")
+
+(defface diff-hl-margin-change
+  '((default :inherit diff-hl-change))
+  "Face used to highlight changed lines on the margin.")
+
+(defface diff-hl-margin-ignored
+  '((default :inherit dired-ignored))
+  "Face used to highlight changed lines on the margin.")
+
+(defface diff-hl-margin-unknown
+  '((default :inherit dired-ignored))
+  "Face used to highlight changed lines on the margin.")
+
+(defcustom diff-hl-margin-symbols-alist
+  '((insert . "+") (delete . "-") (change . "!")
+    (unknown . "?") (ignored . "i"))
+  "Associative list from symbols to strings."
+  :type '(alist :key-type symbol
+                :value-type string
+                :options (insert delete change unknown ignored))
+  :set (lambda (symbol value)
+         (defvar diff-hl-margin-spec-cache)
+         (set-default symbol value)
+         (setq diff-hl-margin-spec-cache nil)))
+
 ;;;###autoload
 (define-minor-mode diff-hl-margin-mode
   "Toggle displaying `diff-hl-mode' highlights on the margin."
@@ -91,23 +123,29 @@ You probably shouldn't use this function directly."
 (defun diff-hl-margin-minor-mode-off ()
   (diff-hl-margin-minor-mode -1))
 
-(defvar diff-hl-margin-spec-cache
-  (cl-loop for (type . char) in '((insert . "+") (delete . "-")
-                                  (change . "!") (unknown . "?")
-                                  (ignored . "i"))
-        nconc
-        (cl-loop for side in '(left right)
-                 collect
-                 (cons (cons type side)
-                       (propertize
-                        " " 'display
-                        `((margin ,(intern (format "%s-margin" side)))
-                          ,(propertize char 'face
-                                       (intern (format "diff-hl-%s" 
type)))))))))
+(defvar diff-hl-margin-spec-cache nil)
+
+(defun diff-hl-margin-spec-cache ()
+  (or diff-hl-margin-spec-cache
+      (setq diff-hl-margin-spec-cache
+            (diff-hl-margin-build-spec-cache))))
+
+(defun diff-hl-margin-build-spec-cache ()
+  (cl-loop for (type . char) in diff-hl-margin-symbols-alist
+           nconc
+           (cl-loop for side in '(left right)
+                    collect
+                    (cons
+                     (cons type side)
+                     (propertize
+                      " " 'display
+                      `((margin ,(intern (format "%s-margin" side)))
+                        ,(propertize char 'face
+                                     (intern (format "diff-hl-margin-%s" 
type)))))))))
 
 (defun diff-hl-highlight-on-margin (ovl type _shape)
   (let ((spec (cdr (assoc (cons type diff-hl-side)
-                          diff-hl-margin-spec-cache))))
+                          (diff-hl-margin-spec-cache)))))
     (overlay-put ovl 'before-string spec)))
 
 (provide 'diff-hl-margin)
diff --git a/packages/diff-hl/diff-hl.el b/packages/diff-hl/diff-hl.el
index 6650818..5ef4f88 100644
--- a/packages/diff-hl/diff-hl.el
+++ b/packages/diff-hl/diff-hl.el
@@ -1,12 +1,12 @@
 ;;; diff-hl.el --- Highlight uncommitted changes using VC -*- lexical-binding: 
t -*-
 
-;; Copyright (C) 2012-2016  Free Software Foundation, Inc.
+;; Copyright (C) 2012-2018  Free Software Foundation, Inc.
 
 ;; Author:   Dmitry Gutov <address@hidden>
 ;; URL:      https://github.com/dgutov/diff-hl
 ;; Keywords: vc, diff
-;; Version:  1.8.4
-;; Package-Requires: ((cl-lib "0.2"))
+;; Version:  1.8.5
+;; Package-Requires: ((cl-lib "0.2") (emacs "24.3"))
 
 ;; This file is part of GNU Emacs.
 
@@ -127,6 +127,15 @@
            (set-default var value)
            (when on (global-diff-hl-mode 1)))))
 
+(defcustom diff-hl-highlight-revert-hunk-function
+  #'diff-hl-revert-highlight-first-column
+  "Function to highlight the current hunk in `diff-hl-revert-hunk'.
+The function is called at the beginning of the hunk and passed
+the end position as its only argument."
+  :type '(choice (const :tag "Do nothing" ignore)
+                 (const :tag "Highlight the first column"
+                        diff-hl-revert-highlight-first-column)))
+
 (defvar diff-hl-reference-revision nil
   "Revision to diff against.  nil means the most recent one.")
 
@@ -237,6 +246,7 @@
 (defun diff-hl-changes-buffer (file backend)
   (let ((buf-name " *diff-hl* "))
     (diff-hl-with-diff-switches
+     ;; FIXME: To diff against the staging area, call 'git diff-files -p'.
      (vc-call-backend backend 'diff (list file)
                       diff-hl-reference-revision nil
                       buf-name))
@@ -380,53 +390,69 @@ in the source file, or the last line of the hunk above 
it."
                 (unless (looking-at "^-")
                   (cl-decf to-go))))))))))
 
+(defface diff-hl-reverted-hunk-highlight
+  '((default :inverse-video t))
+  "Face used to highlight the first column of the hunk to be reverted.")
+
+(defun diff-hl-revert-highlight-first-column (end)
+  (let ((inhibit-read-only t))
+    (save-excursion
+      (while (< (point) end)
+        (font-lock-prepend-text-property (point) (1+ (point)) 'font-lock-face
+                                         'diff-hl-reverted-hunk-highlight)
+        (forward-line 1)))))
+
 (defun diff-hl-revert-hunk ()
   "Revert the diff hunk with changes at or above the point."
   (interactive)
-  (vc-buffer-sync)
-  (let ((diff-buffer (generate-new-buffer-name "*diff-hl*"))
-        (buffer (current-buffer))
-        (line (save-excursion
-                (unless (diff-hl-hunk-overlay-at (point))
-                  (diff-hl-previous-hunk))
-                (line-number-at-pos)))
-        (fileset (vc-deduce-fileset)))
-    (unwind-protect
-        (progn
-          (vc-diff-internal nil fileset diff-hl-reference-revision nil
-                            nil diff-buffer)
-          (vc-exec-after
-           `(let (beg-line end-line)
-              (when (eobp)
-                (with-current-buffer ,buffer (diff-hl-remove-overlays))
-                (error "Buffer is up-to-date"))
-              (let (diff-auto-refine-mode)
-                (diff-hl-diff-skip-to ,line))
-              (save-excursion
-                (while (looking-at "[-+]") (forward-line 1))
-                (setq end-line (line-number-at-pos (point)))
-                (unless (eobp) (diff-split-hunk)))
-              (unless (looking-at "[-+]") (forward-line -1))
-              (while (looking-at "[-+]") (forward-line -1))
-              (setq beg-line (line-number-at-pos (point)))
-              (unless (looking-at "@")
-                (forward-line 1)
-                (diff-split-hunk))
-              (let ((wbh (window-body-height)))
-                (if (>= wbh (- end-line beg-line))
-                    (recenter (/ (+ wbh (- beg-line end-line) 2) 2))
-                  (recenter 1)))
-              (when diff-auto-refine-mode
-                (diff-refine-hunk))
-              (unless (yes-or-no-p (format "Revert current hunk in %s?"
-                                           ,(cl-caadr fileset)))
-                (error "Revert canceled"))
-              (let ((diff-advance-after-apply-hunk nil))
-                (diff-apply-hunk t))
-              (with-current-buffer ,buffer
-                (save-buffer))
-              (message "Hunk reverted"))))
-      (quit-windows-on diff-buffer t))))
+  (save-restriction
+    (widen)
+    (vc-buffer-sync)
+    (let ((diff-buffer (generate-new-buffer-name "*diff-hl*"))
+          (buffer (current-buffer))
+          (line (save-excursion
+                  (unless (diff-hl-hunk-overlay-at (point))
+                    (diff-hl-previous-hunk))
+                  (line-number-at-pos)))
+          (fileset (vc-deduce-fileset)))
+      (unwind-protect
+          (progn
+            (vc-diff-internal nil fileset diff-hl-reference-revision nil
+                              nil diff-buffer)
+            (vc-exec-after
+             `(let (beg-line end-line m-end)
+                (when (eobp)
+                  (with-current-buffer ,buffer (diff-hl-remove-overlays))
+                  (user-error "Buffer is up-to-date"))
+                (let (diff-auto-refine-mode)
+                  (diff-hl-diff-skip-to ,line))
+                (save-excursion
+                  (while (looking-at "[-+]") (forward-line 1))
+                  (setq end-line (line-number-at-pos (point)))
+                  (setq m-end (point-marker))
+                  (unless (eobp) (diff-split-hunk)))
+                (unless (looking-at "[-+]") (forward-line -1))
+                (while (looking-at "[-+]") (forward-line -1))
+                (setq beg-line (line-number-at-pos (point)))
+                (unless (looking-at "@")
+                  (forward-line 1)
+                  (diff-split-hunk))
+                (funcall diff-hl-highlight-revert-hunk-function m-end)
+                (let ((wbh (window-body-height)))
+                  (if (>= wbh (- end-line beg-line))
+                      (recenter (/ (+ wbh (- beg-line end-line) 2) 2))
+                    (recenter 1)))
+                (when diff-auto-refine-mode
+                  (diff-refine-hunk))
+                (unless (yes-or-no-p (format "Revert current hunk in %s? "
+                                             ,(cl-caadr fileset)))
+                  (user-error "Revert canceled"))
+                (let ((diff-advance-after-apply-hunk nil))
+                  (diff-apply-hunk t))
+                (with-current-buffer ,buffer
+                  (save-buffer))
+                (message "Hunk reverted"))))
+        (quit-windows-on diff-buffer t)))))
 
 (defun diff-hl-hunk-overlay-at (pos)
   (cl-loop for o in (overlays-in pos (1+ pos))
@@ -447,7 +473,7 @@ in the source file, or the last line of the hunk above it."
                        (throw 'found (overlay-start o)))))))))
     (if pos
         (goto-char pos)
-      (error "No further hunks found"))))
+      (user-error "No further hunks found"))))
 
 (defun diff-hl-previous-hunk ()
   "Go to the beginning of the previous hunk in the current buffer."
@@ -458,7 +484,7 @@ in the source file, or the last line of the hunk above it."
   (interactive)
   (let ((hunk (diff-hl-hunk-overlay-at (point))))
     (unless hunk
-      (error "No hunk at point"))
+      (user-error "No hunk at point"))
     (goto-char (overlay-start hunk))
     (push-mark (overlay-end hunk) nil t)))
 
@@ -470,11 +496,18 @@ in the source file, or the last line of the hunk above 
it."
     map))
 (fset 'diff-hl-command-map diff-hl-command-map)
 
+(defvar diff-hl-lighter ""
+  "Mode line lighter for Diff Hl.
+
+The value of this variable is a mode line template as in
+`mode-line-format'.")
+
 ;;;###autoload
 (define-minor-mode diff-hl-mode
   "Toggle VC diff highlighting."
-  :lighter "" :keymap `(([remap vc-diff] . diff-hl-diff-goto-hunk)
-                        (,diff-hl-command-prefix . diff-hl-command-map))
+  :lighter diff-hl-lighter
+  :keymap `(([remap vc-diff] . diff-hl-diff-goto-hunk)
+            (,diff-hl-command-prefix . diff-hl-command-map))
   (if diff-hl-mode
       (progn
         (diff-hl-maybe-define-bitmaps)
@@ -538,7 +571,12 @@ in the source file, or the last line of the hunk above it."
     (dolist (buf (buffer-list))
       (when (and (buffer-local-value 'diff-hl-mode buf)
                  (not (buffer-modified-p buf))
-                 (file-in-directory-p (buffer-file-name buf) topdir))
+                 ;; Solve the "cloned indirect buffer" problem
+                 ;; (diff-hl-mode could be non-nil there, even if
+                 ;; buffer-file-name is nil):
+                 (buffer-file-name buf)
+                 (file-in-directory-p (buffer-file-name buf) topdir)
+                 (file-exists-p (buffer-file-name buf)))
         (with-current-buffer buf
           (let* ((file buffer-file-name)
                  (backend (vc-backend file)))