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;;; evil-collection-eshell.el --- Evil bindings for Eshell -*- lexical-binding: t -*-
;; Copyright (C) 2017 Pierre Neidhardt
;; Author: Pierre Neidhardt <ambrevar@gmail.com>
;; Maintainer: James Nguyen <james@jojojames.com>
;; Pierre Neidhardt <ambrevar@gmail.com>
;; URL: https://github.com/emacs-evil/evil-collection
;; Version: 0.0.1
;; Package-Requires: ((emacs "25.1"))
;; Keywords: evil, eshell, tools
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published
;; by the Free Software Foundation; either version 3, or (at your
;; option) any later version.
;;
;; This file is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;;
;; For a full copy of the GNU General Public License
;; see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Evil bindings for EMMS
;;; Code:
(require 'em-prompt)
(require 'eshell)
(require 'evil-collection)
(defconst evil-collection-eshell-maps '(eshell-mode-map))
(defun evil-collection-eshell-next-prompt ()
"`evil' wrapper around `eshell-next-prompt'."
(when (get-text-property (point) 'read-only)
;; If at end of prompt, `eshell-next-prompt' will not move, so go backward.
(beginning-of-line)
(eshell-next-prompt 1)))
(defun evil-collection-eshell-next-prompt-on-insert ()
"Go to next prompt on `evil' replace/insert enter."
(dolist (hook '(evil-replace-state-entry-hook evil-insert-state-entry-hook))
(add-hook hook 'evil-collection-eshell-next-prompt nil t)))
(defun evil-collection-eshell-interrupt-process ()
"Interupt `eshell' process and enter insert state."
(interactive)
(eshell-interrupt-process)
(evil-insert 1))
;;; `eshell-mode-map' is reset when Eshell is initialized in `eshell-mode'. We
;;; need to add bindings to `eshell-first-time-mode-hook'.
(defun evil-collection-eshell-setup-keys ()
"Set up `evil' bindings for `eshell'."
(evil-collection-define-key 'normal 'eshell-mode-map
;; motion
"[" 'eshell-previous-prompt
"]" 'eshell-next-prompt
(kbd "C-k") 'eshell-previous-prompt
(kbd "C-j") 'eshell-next-prompt
"gk" 'eshell-previous-prompt
"gj" 'eshell-next-prompt
"0" 'eshell-bol
"^" 'eshell-bol
(kbd "M-h") 'eshell-backward-argument
(kbd "M-l") 'eshell-forward-argument
(kbd "<return>") 'eshell-send-input
(kbd "C-c C-c") 'evil-collection-eshell-interrupt-process)
(evil-collection-define-key 'insert 'eshell-mode-map
;; motion
(kbd "M-h") 'eshell-backward-argument
(kbd "M-l") 'eshell-forward-argument)
(evil-collection-define-key 'visual 'eshell-mode-map
;; motion
;; TODO: This does not work with `evil-visual-line'.
"[" 'eshell-previous-prompt
"]" 'eshell-next-prompt
(kbd "C-k") 'eshell-previous-prompt
(kbd "C-j") 'eshell-next-prompt
"gk" 'eshell-previous-prompt
"gj" 'eshell-next-prompt
"0" 'eshell-bol
"^" 'eshell-bol))
;; TODO: Compare this setup procedure with evil-ediff.
(defun evil-collection-eshell-setup ()
"Set up `evil' bindings for `eshell'."
(add-hook 'eshell-mode-hook 'evil-collection-eshell-next-prompt-on-insert)
(add-hook 'eshell-first-time-mode-hook 'evil-collection-eshell-setup-keys))
(provide 'evil-collection-eshell)
;;; evil-collection-eshell.el ends here
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