emacs/Makefile, emacs/eshell-init.el, emacs/init.el

1 files changed, 63 insertions, 0 deletions

diff --git a/emacs/eshell-init.el b/emacs/eshell-init.el
new file mode 100644
index 0000000..1dd8773
--- /dev/null
+++ b/emacs/eshell-init.el
@@ -0,0 +1,63 @@
+;; Eshell settings
+(eval-when-compile
+  '(load "init.el"))
+
+(eval-after-load "em-term"
+  '(add-to-list 'eshell-visual-commands
+                "unison"))
+
+(defun oni:eshell-mode-func ()
+  "Function for `eshell-mode-hook'."
+  (setq truncate-lines nil))
+
+(defun oni:eshell-prompt-function ()
+  (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)) ?# ?$)))
+    (concat
+     (propertize (char-to-string status)
+                 'face `(:foreground ,(if (= status ?+)
+                                          (oni:color chameleon-1)
+                                        (oni:color scarlet-red-2))))
+     " "
+     (propertize (substring hostname 0 -1) 'face 'mode-line-buffer-id)
+     " "
+     (propertize (oni:shorten-dir dir) 'face 'font-lock-string-face)
+     " "
+     (propertize (when (not (string= branch ""))
+                   ;; Cut off "* " and "\n"
+                   (substring branch 2 -1))
+                 'face 'font-lock-function-name-face)
+     " \n"
+     (propertize (char-to-string userstatus)
+                 'face `(:foreground ,(oni:color sky-blue-1)))
+     "> ")))
+
+;;;###autoload
+(defun oni:raise-eshell ()
+  "Start or switch back to `eshell'. Also change directories to
+    current working directory."
+  (interactive)
+  (let ((dir (file-name-directory
+              (or (buffer-file-name) "~/")))
+        (hasfile (not (eq (buffer-file-name) nil))))
+    (eshell)
+    (if (and hasfile (eq eshell-process-list nil))
+        (progn
+          (eshell/cd dir)
+          (eshell-reset)))))
+
+(defun oni:shorten-dir (dir)
+  "Shorten a directory, (almost) like fish does it."
+  (while (string-match "\\(/\\.?.\\)[^/]+/" dir)
+    (setq dir (replace-match "\\1/" nil nil dir)))
+  dir)
+
+(setq eshell-prompt-regexp "^[#$]> ")
+(setq eshell-highlight-prompt nil)
+(setq eshell-prompt-function 'oni:eshell-prompt-function)
+(add-hook 'eshell-mode-hook 'oni:eshell-mode-func)