Add eshell configuration

emacs/.emacs.d/init.org

@@ -947,6 +947,12 @@ To start off, first I need to enable lexical binding.
          (with-eval-after-load 'org (load "oni-org-init"))
        #+END_SRC
 
+  - [[file:init/oni-eshell-init.org][Eshell]] :: The best shell on the planet.
+
+       #+BEGIN_SRC emacs-lisp
+         (with-eval-after-load 'eshell (load "oni-eshell-init"))
+       #+END_SRC
+
 ** Linewise user-interface
 
    This is the library used by Circe and Slack to display messages.

emacs/.emacs.d/init/oni-eshell-init.org

@@ -0,0 +1,12 @@
+#+TITLE: Eshell configuration
+
+#+BEGIN_SRC emacs-lisp
+  (require 'eshell)
+#+END_SRC
+
+Truncate the eshell buffer when it gets larger than
+=eshell-buffer-maximum-lines= number of lines.
+
+#+BEGIN_SRC emacs-lisp
+  (add-to-list 'eshell-output-filter-functions 'eshell-truncate-buffer)
+#+END_SRC