Move eshell settings to org

1 files changed, 93 insertions, 0 deletions

diff --git a/.emacs.d/init.org b/.emacs.d/init.org
index d46e722..9caead5 100644
--- a/.emacs.d/init.org
+++ b/.emacs.d/init.org
@@ -82,3 +82,96 @@
   #+BEGIN_SRC emacs-lisp :tangle init2.el
     (eval-after-load "eldoc" '(diminish 'eldoc-mode))
   #+END_SRC
+
+** Eshell
+
+   Add ~unison~ to the list of =eshell-visual-commands= because it
+   expects unbuffered input and eshell just doesn't give that.
+
+   #+BEGIN_SRC emacs-lisp :tangle init2.el
+     (eval-after-load "em-term"
+       '(add-to-list 'eshell-visual-commands "unison"))
+   #+END_SRC
+
+   Don't let eshell highlight it's prompt, this way I can decide the
+   colors for it myself.
+
+   #+BEGIN_SRC emacs-lisp :tangle init2.el
+     (setq eshell-highlight-prompt nil)
+   #+END_SRC
+
+   In the prompt:
+
+   - Show the exit status of the last program/command run represented
+     by a green ~+~ and a red ~-~ sign.
+   - Show the current hostname with the =mode-line-buffer-id= face.
+   - Show an abbreviation of the current directory (as seen in ~fish~)
+     using the =font-lock-string-face= face.
+   - If we're in a git repository, show the current branch with the
+     =font-lock-function-name-face= face.
+   - Show the status of priviledges in blue.
+
+   And set the =eshell-prompt-regexp= to
+
+   #+BEGIN_SRC emacs-lisp :tangle init2.el
+     (defun oni:eshell-prompt-function ()
+       "Show a pretty shell prompt."
+       (let ((status (if (zerop eshell-last-command-status) ?+ ?-))
+             (hostname (shell-command-to-string "hostname"))
+             (dir (abbreviate-file-name (eshell/pwd)))
+             (branch
+              (shell-command-to-string
+               "git branch --contains HEAD 2>/dev/null | sed -e '/^[^*]/d'"))
+             (userstatus (if (zerop (user-uid)) ?# ?$)))
+         (concat
+          (propertize (char-to-string status)
+                      'face `(:foreground ,(if (= status ?+)
+                                               "green"
+                                             "red")))
+          " "
+          (propertize (substring hostname 0 -1) 'face 'mode-line-buffer-id)
+          " "
+          (propertize (oni:shorten-dir dir) 'face 'font-lock-string-face)
+          " "
+          (when (not (string= branch ""))
+            (propertize
+             ;; Cut off "* " and "\n"
+             (substring branch 2 -1)
+             'face 'font-lock-function-name-face))
+          " \n"
+          (propertize (char-to-string userstatus)
+                      'face `(:foreground "blue"))
+          "> ")))
+
+     (setq eshell-prompt-function 'oni:eshell-prompt-function
+           eshell-prompt-regexp "^[#$]> ")
+   #+END_SRC
+
+   Don't truncate lines in eshell, wrap them.
+
+   #+BEGIN_SRC emacs-lisp :tangle init2.el
+     (defun oni:eshell-mode-func ()
+       "Function for `eshell-mode-hook'."
+       (setq truncate-lines nil))
+
+     (add-hook 'eshell-mode-hook 'oni:eshell-mode-func)
+   #+END_SRC
+
+   Bind the ~f8~ key to easily show eshell.
+
+   #+BEGIN_SRC emacs-lisp :tangle init2.el
+     (defun oni:raise-eshell ()
+       "Start or switch back to `eshell'.
+     Also change directories to current working directory."
+       (interactive)
+       (let ((dir (file-name-directory
+                   (or (buffer-file-name) "~/")))
+             (hasfile (not (eq (buffer-file-name) nil))))
+         (eshell)
+         (if (and hasfile (eq eshell-process-list nil))
+             (progn
+               (eshell/cd dir)
+               (eshell-reset)))))
+
+     (global-set-key (kbd "<f8>") 'oni:raise-eshell)
+   #+END_SRC