Nice diff's gonna save your time

hydra-git-gutter.el

;; Few changes to https://github.com/abo-abo/hydra/wiki/Git-gutter
(defhydra hydra-git-gutter (:body-pre
                            (save-buffer)
                            (git-gutter-mode 1)
                            :hint nil
                            :color blue)
  "
Git gutter:
  _n_: next hunk        _s_tage hunk     _u_ndo  _r_edo    _q_uit
  _p_: previous hunk    _R_evert hunk    ^ ^               _Q_uit and deactivate git-gutter
  ^ ^                   _p_opup hunk     _mh_ helm hunk
  _f_: first hunk
  _l_: last hunk        set start re_V_ision
"
  ("n" git-gutter:next-hunk)
  ("p" git-gutter:previous-hunk)
  ("f" (progn (goto-char (point-min))
              (git-gutter:next-hunk 1)))
  ("l" (progn (goto-char (point-min))
              (git-gutter:previous-hunk 1)))
  ("s" git-gutter:stage-hunk)
  ("R" git-gutter:revert-hunk)
  ("d" git-gutter:popup-hunk)
  ("V" git-gutter:set-start-revision)
  ("mh" helm-hunks  :color green exit: t)
  ("u" (progn (undo-tree-undo)
              (save-buffer)))

  ("r" (progn (undo-tree-redo)
              (save-buffer)))
  ("q" nil :color red)

  ("Q" (progn (git-gutter-mode -1)
              ;; git-gutter-fringe doesn't seem to
              ;; clear the markup right away
              (sit-for 0.1)
              (git-gutter:clear))
    )
  )