94 lines
2.9 KiB
EmacsLisp
94 lines
2.9 KiB
EmacsLisp
;;; acdw-eshell.el -*- lexical-binding: t; coding: utf-8-unix -*-
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;; Author: Case Duckworth <(rot13-string "npqj@npqj.arg")>
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;; Keywords: configuration
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;; URL: https://tildegit.org/acdw/emacs
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;; This file is NOT part of GNU Emacs.
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;;; License:
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;; Everyone is permitted to do whatever with this software, without
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;; limitation. This software comes without any warranty whatsoever,
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;; but with two pieces of advice:
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;; - Don't hurt yourself.
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;; - Make good choices.
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;;; Commentary:
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;;; Code:
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(require 'cl-lib)
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;;; Eshell starting and quitting
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(defun eshell-quit-or-delete-char (arg)
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"Delete the character to the right, or quit eshell on an empty line."
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(interactive "p")
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(if (and (eolp) (looking-back eshell-prompt-regexp))
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(eshell-life-is-too-much)
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(delete-forward-char arg)))
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;;;###autoload
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(defun eshell-pop-or-quit (&optional buffer-name)
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"Pop open an eshell buffer, or if in an eshell buffer, bury it."
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(interactive)
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(if (eq (current-buffer) (get-buffer (or buffer-name "*eshell*")))
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(eshell-life-is-too-much)
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(with-message "Starting eshell"
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(eshell))))
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;;; Insert previous arguments
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;; Record arguments
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(defvar eshell-arg-history nil)
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(defvar eshell-arg-history-index nil)
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(add-to-list 'savehist-additional-variables 'eshell-arg-history)
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(defun eshell-record-args (&rest _)
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"Record unique arguments onto the front of `eshell-arg-history'."
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(setq eshell-arg-history
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(cl-loop with history = eshell-arg-history
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for arg in (reverse eshell-last-arguments)
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do (setq history (cons arg (remove arg history)))
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finally return history)))
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(defun eshell-insert-prev-arg ()
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"Insert an argument from `eshell-arg-history' at point."
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(interactive)
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(if (eq last-command 'eshell-insert-prev-arg)
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(progn
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(let ((pos (point)))
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(eshell-backward-argument 1)
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(delete-region (point) pos))
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(if-let ((text (nth eshell-arg-history-index
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eshell-arg-history)))
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(progn
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(insert text)
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(cl-incf eshell-arg-history-index))
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(insert (cl-first eshell-arg-history))
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(setq eshell-arg-history-index 1)))
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(insert (cl-first eshell-arg-history))
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(setq eshell-arg-history-index 1)))
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(add-hook 'eshell-mode-hook
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(lambda ()
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(add-hook 'eshell-post-command-hook
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#'eshell-record-args nil t)
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(local-set-key (kbd "M-.") #'eshell-insert-prev-arg)))
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;;;###autoload
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(define-minor-mode eshell-arg-hist-mode
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"Minor mode to enable argument history, like bash/zsh with M-."
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:lighter "$."
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:keymap (let ((map (make-sparse-keymap)))
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(define-key map (kbd "M-.") #'eshell-insert-prev-arg)
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map)
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(if eshell-arg-hist-mode
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(add-hook 'eshell-post-command-hook #'eshell-record-args nil t)
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(remove-hook 'eshell-post-command-hook #'eshell-record-args t)))
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(provide 'acdw-eshell)
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;;; acdw-eshell.el ends here
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