move eshell configuration to separate file

1 files changed, 51 insertions, 0 deletions

diff --git a/init-eshell.el b/init-eshell.el
new file mode 100644
index 0000000..da42443
--- /dev/null
+++ b/init-eshell.el
@@ -0,0 +1,51 @@
+(require 'eshell)
+(require 'shell-switcher)
+(setq shell-switcher-mode t)
+(add-hook 'eshell-mode-hook 'shell-switcher-manually-register-shell)
+(setq eshell-history-size 10000)
+
+;; author: KaiGrossjohann on EmacsWiki
+(defun eshell/ff (&rest args)
+  "Invoke `find-file' on the file.
+    \"ff +42 foo\" also goes to line 42 in the buffer."
+  (while args
+    (if (string-match "\\`\\+\\([0-9]+\\)\\'" (car args))
+        (let* ((line (string-to-number (match-string 1 (pop args))))
+               (file (pop args)))
+          (find-file file)
+          (goto-line line))
+      (find-file (pop args)))))
+
+
+;; convenience functions to input the remote root/home dir when in a
+;; directory on a remote host
+(defun my/tramp-root ()
+   "Print root directory on the remote host."
+   (interactive)
+   (let ((pieces (split-string (eshell/pwd) ":/")))
+     (insert-string (if (> (length pieces) 1)
+                        (concat (car pieces) ":/")
+                      "/"))))
+
+(defun my/tramp-home ()
+   "Print home directory path on the remote host."
+   (interactive)
+   (let ((pieces (split-string (eshell/pwd) ":/")))
+     (insert-string (if (> (length pieces) 1)
+                        (concat (car pieces) ":~/")
+                      "~/"))))
+
+(add-hook 'eshell-mode-hook
+          '(lambda () (define-key eshell-mode-map (kbd "C-c /") 'my/tramp-root)))
+(add-hook 'eshell-mode-hook
+          '(lambda () (define-key eshell-mode-map (kbd "C-c ~") 'my/tramp-home)))
+
+
+;; start a hidden eshell on startup
+(add-hook 'emacs-startup-hook #'(lambda ()
+                                  (let ((default-directory (getenv "HOME")))
+                                    (command-execute 'eshell)
+                                    (bury-buffer))))
+
+;; use cat as the pager in shell mode, because shell-mode is not an ANSI terminal
+(setenv "PAGER" "cat")