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Using Emacs in daily life, I rely on <code>vterm</code> terminal emulator instead of <code>eshell</code>. However, I've
noticed that there are certain limitations in terms of integration between <code>vterm</code> and Emacs. While
the package supports some user-accessible functions, they are not sufficient. I've always wanted the
integration level as <code>VSCode</code>, and at least it should be able to open files from the terminal
interface. Well, this is one of essential features of the terminal emulator running on editors, so I
thought that having this kind of issue was ridiculous. So I tried to find solutions by googling
about it, but none of them had a one-shot method to achieve this. So, I made up my mind to write
functions by myself.

In this article, I am going to describe the following things:
<ol>
<li>A callback function to open files from vterm</li>
<li>Functions to manage vterm session</li>
</ol>
Note that since I am using Doomemacs right now, the keymap setting could differ from yours. If you
do not want to read any details about functions that I wrote, just use the following settings.
<div>
<table><tbody><tr><td>
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<pre tabindex="0"><code data-lang="elisp">(require 'filenotify)

(defvar my:get-vterm--backup nil)
(defun my:vterm-new ()
 (interactive)
 (if (not (string-match-p "vterm" (buffer-name (current-buffer))))
 (setq my:get-vterm--backup (current-buffer)))
 (call-interactively #'+vterm/here))

(defun my:vterm-toggle ()
 (interactive)
 (let ((cnt (cl-remove-if #'null
 (mapcar (lambda (x)
 (and (string-match-p "vterm" (buffer-name x)) (buffer-name x)))
 (buffer-list)))))
 (if (null cnt)
 (progn
 (setq my:get-vterm--backup (current-buffer))
 (call-interactively #'+vterm/here))
 (if (and (string-match-p "vterm" (buffer-name (current-buffer)))
 my:get-vterm--backup)
 (my:vterm--restore)
 (call-interactively #'my:vterm--select)))))

(defun my:vterm--restore ()
 (switch-to-buffer my:get-vterm--backup)
 (setq my:get-vterm--backup nil))

(defun my:vterm--select (choice)
Argument CHOICE user's selection."
 (interactive
 (list (completing-read "Choose: "
 (cl-remove-if #'null
 (mapcar (lambda (x) (and (string-match-p "vterm" (buffer-name x)) (buffer-name x)))
 (buffer-list)))
 nil t)))
 (car (split-string choice " "))
 (setq my:get-vterm--backup (current-buffer))
 (switch-to-buffer choice))

(after! vterm
 ;; Following must be used with bash alias:
 ;; =&gt; alias eo='echo $1 &gt; ~/.config/emacs/.local/cache/vterm-pipe'
 (let* ((pipe-file (expand-file-name "vterm-pipe" user-emacs-directory))
 (func-open-file (lambda (event)
 (find-file
 (with-temp-buffer
 (insert-file-contents (expand-file-name "vterm-pipe" user-emacs-directory))
 (string-trim (buffer-string)))))))
 (file-notify-add-watch pipe-file '(change) func-open-file))

 (add-hook 'vterm-mode-hook (lambda ()
 (evil-emacs-state))))</code></pre></td></tr></tbody></table>
</div>
</div></div>

A Developer's Note

Overview Using Emacs in daily life, I rely on vterm terminal emulator instead of eshell. However, I've noticed that there are certain limitations in terms of integration between vterm and Emacs. While the package supports some user-accessible functions, they are not sufficient. I've always wanted the integration level as VSCode, and at least it should be able to open files from the terminal interface. Well, this is one of essential features of the terminal emulator running on editors, so I thought that having this kind of issue was ridiculous.

Vterm In Emacs

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