diff options
Diffstat (limited to 'lisp/vc/diff-mode.el')
| -rw-r--r-- | lisp/vc/diff-mode.el | 84 |
1 files changed, 67 insertions, 17 deletions
diff --git a/lisp/vc/diff-mode.el b/lisp/vc/diff-mode.el index 7db5ca9b259..1e2fbb97fcf 100644 --- a/lisp/vc/diff-mode.el +++ b/lisp/vc/diff-mode.el @@ -891,7 +891,7 @@ PREFIX is only used internally: don't use it." (if (and newfile (file-exists-p newfile)) (cl-return newfile)))) ;; look for each file in turn. If none found, try again but ;; ignoring the first level of directory, ... - (cl-do* ((files fs (delq nil (mapcar 'diff-filename-drop-dir files))) + (cl-do* ((files fs (delq nil (mapcar #'diff-filename-drop-dir files))) (file nil nil)) ((or (null files) (setq file (cl-do* ((files files (cdr files)) @@ -1387,12 +1387,12 @@ a diff with \\[diff-reverse-direction]. ;; (set (make-local-variable 'paragraph-separate) paragraph-start) ;; (set (make-local-variable 'page-delimiter) "--- [^\t]+\t") ;; compile support - (set (make-local-variable 'next-error-function) 'diff-next-error) + (set (make-local-variable 'next-error-function) #'diff-next-error) (set (make-local-variable 'beginning-of-defun-function) - 'diff-beginning-of-file-and-junk) + #'diff-beginning-of-file-and-junk) (set (make-local-variable 'end-of-defun-function) - 'diff-end-of-file) + #'diff-end-of-file) (diff-setup-whitespace) @@ -1400,10 +1400,10 @@ a diff with \\[diff-reverse-direction]. (setq buffer-read-only t)) ;; setup change hooks (if (not diff-update-on-the-fly) - (add-hook 'write-contents-functions 'diff-write-contents-hooks nil t) + (add-hook 'write-contents-functions #'diff-write-contents-hooks nil t) (make-local-variable 'diff-unhandled-changes) - (add-hook 'after-change-functions 'diff-after-change-function nil t) - (add-hook 'post-command-hook 'diff-post-command-hook nil t)) + (add-hook 'after-change-functions #'diff-after-change-function nil t) + (add-hook 'post-command-hook #'diff-post-command-hook nil t)) ;; Neat trick from Dave Love to add more bindings in read-only mode: (let ((ro-bind (cons 'buffer-read-only diff-mode-shared-map))) (add-to-list 'minor-mode-overriding-map-alist ro-bind) @@ -1415,7 +1415,7 @@ a diff with \\[diff-reverse-direction]. nil t)) ;; add-log support (set (make-local-variable 'add-log-current-defun-function) - 'diff-current-defun) + #'diff-current-defun) (set (make-local-variable 'add-log-buffer-file-name-function) (lambda () (diff-find-file-name nil 'noprompt))) (unless (buffer-file-name) @@ -1433,10 +1433,10 @@ the mode if ARG is omitted or nil. ;; FIXME: setup font-lock ;; setup change hooks (if (not diff-update-on-the-fly) - (add-hook 'write-contents-functions 'diff-write-contents-hooks nil t) + (add-hook 'write-contents-functions #'diff-write-contents-hooks nil t) (make-local-variable 'diff-unhandled-changes) - (add-hook 'after-change-functions 'diff-after-change-function nil t) - (add-hook 'post-command-hook 'diff-post-command-hook nil t))) + (add-hook 'after-change-functions #'diff-after-change-function nil t) + (add-hook 'post-command-hook #'diff-post-command-hook nil t))) ;;; Handy hook functions ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; @@ -1468,7 +1468,7 @@ modified lines of the diff." (defun diff-delete-empty-files () "Arrange for empty diff files to be removed." - (add-hook 'after-save-hook 'diff-delete-if-empty nil t)) + (add-hook 'after-save-hook #'diff-delete-if-empty nil t)) (defun diff-make-unified () "Turn context diffs into unified diffs if applicable." @@ -1693,7 +1693,7 @@ If TEXT isn't found, nil is returned." Whitespace differences are ignored." (let* ((orig (point)) (re (concat "^[ \t\n ]*" - (mapconcat 'regexp-quote (split-string text) "[ \t\n ]+") + (mapconcat #'regexp-quote (split-string text) "[ \t\n ]+") "[ \t\n ]*\n")) (forw (and (re-search-forward re nil t) (cons (match-beginning 0) (match-end 0)))) @@ -1874,11 +1874,13 @@ then `diff-jump-to-old-file' is also set, for the next invocations." ;; the old location, and else to the new (i.e. as if reverting). ;; This is a convenient detail when using smerge-diff. (if event (posn-set-point (event-end event))) - (let ((rev (not (save-excursion (beginning-of-line) (looking-at "[-<]"))))) + (let ((buffer (when event (current-buffer))) + (rev (not (save-excursion (beginning-of-line) (looking-at "[-<]"))))) (pcase-let ((`(,buf ,line-offset ,pos ,src ,_dst ,switched) (diff-find-source-location other-file rev))) (pop-to-buffer buf) (goto-char (+ (car pos) (cdr src))) + (when buffer (next-error-found buffer (current-buffer))) (diff-hunk-status-msg line-offset (diff-xor rev switched) t)))) @@ -2047,7 +2049,7 @@ Return new point, if it was moved." (progn (diff--forward-while-leading-char ?\\ end) (setq end-add (point)))) (smerge-refine-regions beg-del beg-add beg-add end-add - nil 'diff-refine-preproc props-r props-a))))) + nil #'diff-refine-preproc props-r props-a))))) (`context (let* ((middle (save-excursion (re-search-forward "^---"))) (other middle)) @@ -2060,7 +2062,7 @@ Return new point, if it was moved." (match-beginning 0)) other (if diff-use-changed-face props-c) - 'diff-refine-preproc + #'diff-refine-preproc (unless diff-use-changed-face props-r) (unless diff-use-changed-face props-a))))) (_ ;; Normal diffs. @@ -2069,7 +2071,7 @@ Return new point, if it was moved." ;; It's a combined add&remove, so there's something to do. (smerge-refine-regions beg1 (match-beginning 0) (match-end 0) end - nil 'diff-refine-preproc props-r props-a))))))))) + nil #'diff-refine-preproc props-r props-a))))))))) (defun diff-undo (&optional arg) "Perform `undo', ignoring the buffer's read-only status." @@ -2175,6 +2177,54 @@ fixed, visit it in a buffer." modified-buffers ", ")) (message "No trailing whitespace to delete."))))) +;;; Support for converting a diff to diff3 markers via `wiggle'. + +;; Wiggle can be found at http://neil.brown.name/wiggle/ or in your nearest +;; Debian repository. + +(defun diff-wiggle () + "Use `wiggle' to apply the whole current file diff by hook or by crook. +When a hunk can't cleanly be applied, it gets turned into a diff3-style +conflict." + (interactive) + (let* ((bounds (diff-bounds-of-file)) + (file (diff-find-file-name)) + (tmpbuf (current-buffer)) + (filebuf (find-buffer-visiting file)) + (patchfile (make-temp-file + (expand-file-name "wiggle" (file-name-directory file)) + nil ".diff")) + (errfile (make-temp-file + (expand-file-name "wiggle" (file-name-directory file)) + nil ".error"))) + (unwind-protect + (with-temp-buffer + (set-buffer (prog1 tmpbuf (setq tmpbuf (current-buffer)))) + (when (buffer-modified-p filebuf) + (save-some-buffers nil (lambda () (eq (current-buffer) filebuf))) + (if (buffer-modified-p filebuf) (error "Abort!"))) + (write-region (car bounds) (cadr bounds) patchfile nil 'silent) + (let ((exitcode + (call-process "wiggle" nil (list tmpbuf errfile) nil + file patchfile))) + (if (not (memq exitcode '(0 1))) + (message "diff-wiggle error: %s" + (with-current-buffer tmpbuf + (goto-char (point-min)) + (insert-file-contents errfile) + (buffer-string))) + (with-current-buffer tmpbuf + (write-region nil nil file nil 'silent) + (with-current-buffer filebuf + (revert-buffer t t t) + (save-excursion + (goto-char (point-min)) + (if (re-search-forward "^<<<<<<<" nil t) + (smerge-mode 1))) + (pop-to-buffer filebuf)))))) + (delete-file patchfile) + (delete-file errfile)))) + ;; provide the package (provide 'diff-mode) |