EDITOR='emacsclient -t' とか EDITOR='emacsclient -c' で git commit -a した時に意図しない差分が表示されるのを回避

init.el

;; EDITOR='emacsclient -t' とか EDITOR='emacsclient -c' で
;; git commit -a した時に意図しない差分が表示されるのを回避
(defun magit-commit-diff-with-frame-environment ()
  (let ((process-environment
	 (append process-environment
		 (frame-parameter nil 'environment))))
    (magit-commit-diff)))
(with-eval-after-load 'magit-commit
  (remove-hook 'server-switch-hook #'magit-commit-diff)
  (add-hook 'server-switch-hook #'magit-commit-diff-with-frame-environment))