diff --git a/emacs.el b/emacs.el
index ccea807..e978734 100644
--- a/emacs.el
+++ b/emacs.el
@@ -1,6 +1,6 @@
 ;;; emacs.el --- 10sr emacs initialization
 
-;; Time-stamp: <2018-10-10 19:49:14 JST 10sr>
+;; Time-stamp: <2018-10-11 00:27:24 JST 10sr>
 
 ;;; Code:
 
@@ -2238,29 +2238,13 @@ use for the buffer. It defaults to \"*recetf-show*\"."
 (define-key ctl-x-map (kbd "C-r") 'recently-show)
 
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;; git tramp
-
-(require 'tramp)
-
-;; TODO: autoload
-(defconst git-tramp-method "git"
-  "Method to connect git repository.")
-
-(defun git-tramp-add-method ()
-  "Add git tramp method."
-  ;; (add-to-list 'tramp-methods
-  ;;              `(,git-tramp-method
-  ;;                (tramp-login-program      ,git-tramp-git-executable)
-  ;;                (tramp-login-args         (,docker-tramp-docker-options ("exec" "-it") ("-u" "%u") ("%h") ("sh")))
-  ;;                (tramp-remote-shell       "/bin/sh")
-  ;;                (tramp-remote-shell-args ("-i" "-c"))))
-  )
+;; git revision
+
+(defun git-revision-open-tree (treeish)
+  "Open git tree buffer of TREEISH.")
 
-;; ;; TODO: autoload
-;; (eval-after-load 'tramp
-;;   '(progn
-;;      (git-tramp-add-method)
-;;      (tramp-set-completion-function git-tramp-method git-tramp-completion-function-alist)))
+(defun git-revision-open (commit)
+  "Open git tree buffer of COMMIT.")
 
 
 ;; Local Variables: