Conflict resolution with Emacs Ediff: How can I take the changes of both versions

Question

(Question adapted from How do I combine the two variants of a conflict in emacs' emerge?)

I have a file with merge conflict markers. It looks similar to this:

<<<<<<< HEAD
            522ADC9C14B2FD9D00F56BAD /* close_test_button.png in Resources */,
            522ADC9D14B2FD9D00F56BAD /* [email protected] in Resources */,
            522ADCA014B2FDB100F56BAD /* test_failed.png in Resources */,
            522ADCA114B2FDB100F56BAD /* [email protected] in Resources */,
=======
            EC1633C014B2F3E3004B52E7 /* arrow.png in Resources */,
            EC1633C114B2F3E3004B52E7 /* [email protected] in Resources */,
            EC1633C214B2F3E3004B52E7 /* groups.png in Resources */,
            EC1633C314B2F3E3004B52E7 /* [email protected] in Resources */,
>>>>>>> beta_2.8

I use M-x vc-resolve-conflicts to start Ediff. I can select variant A or B by hitting a or b on my keyboard, but how do I combine both variants, one after the other?

question from:https://stackoverflow.com/questions/9656311/conflict-resolution-with-emacs-ediff-how-can-i-take-the-changes-of-both-version

Answer 1

This does the same thing as Trey Jackson's helpful answer, and it's much simpler. Pressing d will copy both A and B to buffer C.

(defun ediff-copy-both-to-C ()
  (interactive)
  (ediff-copy-diff ediff-current-difference nil 'C nil
                   (concat
                    (ediff-get-region-contents ediff-current-difference 'A ediff-control-buffer)
                    (ediff-get-region-contents ediff-current-difference 'B ediff-control-buffer))))
(defun add-d-to-ediff-mode-map () (define-key ediff-mode-map "d" 'ediff-copy-both-to-C))
(add-hook 'ediff-keymap-setup-hook 'add-d-to-ediff-mode-map)