115 lines
3.8 KiB
EmacsLisp
115 lines
3.8 KiB
EmacsLisp
;;; eshell-additions.el --- Some aliases for Eshell -*- lexical-binding: t; -*-
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;; Copyright (C) 2024 Aryadev Chavali
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;; Author: Aryadev Chavali <aryadev@aryadevchavali.com>
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;; Keywords:
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License Version
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;; 2 as published by the Free Software Foundation.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;
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;;; Code:
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(autoload #'eshell "eshell")
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(autoload #'eshell/cd "eshell")
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(autoload #'eshell/echo "eshell")
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(autoload #'eshell/send-input "eshell")
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;; Aliases
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(defun eshell/goto (&rest args)
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"Use `read-directory-name' to change directories"
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(let* ((name (read-file-name "Choose file: "))
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(dir (file-name-directory name)))
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(eshell/cd (list dir))
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(if (not (file-directory-p name))
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(find-file name))))
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(defun eshell/project-root (&rest args)
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"Change to directory `project-root'"
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(if (project-current)
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(eshell/cd (list (project-root (project-current))))
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(eshell/echo
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(format "[%s]: No project in current directory"
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(propertize "Error" 'font-lock-face '(:foreground "red"))))))
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(defun eshell/sudo-switch (&rest args)
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"Switch to a tramp connection sudo in the current directory"
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(let ((wrapped-dir (concat "/sudo::" default-directory)))
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(eshell/cd wrapped-dir)))
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;; Additional functions
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(defun +eshell/at-cwd (&optional arg)
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"Open an instance of eshell at the current working directory.
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Pass argument to `+eshell/open'."
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(interactive "P")
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(let ((dir (if buffer-file-name
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(file-name-directory buffer-file-name)
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default-directory))
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(buf (+eshell/open arg)))
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(with-current-buffer buf
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(eshell/cd dir)
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(eshell-send-input))))
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(defun +eshell/--current-instances ()
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(cl-loop for buffer being the buffers
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if (with-current-buffer buffer
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(eq major-mode 'eshell-mode))
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collect
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(cons (buffer-name buffer) buffer)))
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(defun +eshell/open (&optional arg)
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"Open an instance of EShell, displaying it.
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If there exists only one instance of EShell, display it. Otherwise, prompt with
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a list of open instances. If user selects an instance, display that instance.
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Otherwise, create an instance with the name given.
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If `arg' is non nil, then always prompt user to select an instance."
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(interactive "P")
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(let ((current-instances (+eshell/--current-instances))
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(buffer nil))
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(cond
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((and (null current-instances)
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(null arg))
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(setq buffer (eshell)))
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((and (= (length current-instances) 1)
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(null arg))
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(setq buffer (cdar current-instances))
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(switch-to-buffer (cdar current-instances)))
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(t
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(let* ((answer (completing-read "Enter name: " (mapcar #'car current-instances)))
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(result (assoc answer current-instances)))
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(cond
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(result (switch-to-buffer (cdr result))
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(setq buffer (cdr result)))
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((not (string= answer ""))
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(let ((eshell-buffer-name (format "*%s-eshell*" answer)))
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(setq buffer (eshell nil))))
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(t
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(setq buffer (eshell)))))))
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(if (and (consp arg) (> (car arg) 4))
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(with-current-buffer buffer
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(thread-last (read-file-name "Enter directory: ")
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file-name-directory
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list
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eshell/cd)
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(eshell-send-input)))
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buffer))
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(provide 'eshell-additions)
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;;; eshell-additions.el ends here
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