2 files changed, 71 insertions, 0 deletions
diff --git a/tools/emacs-pkgs/term-switcher/default.nix b/tools/emacs-pkgs/term-switcher/default.nix
new file mode 100644
index 000000000000..e775de5cdbe8
--- /dev/null
+++ b/tools/emacs-pkgs/term-switcher/default.nix
@@ -0,0 +1,8 @@
+{ depot, ... }:
+
+depot.tools.emacs-pkgs.buildEmacsPackage {
+  pname = "term-switcher";
+  version = "1.0";
+  src = ./term-switcher.el;
+  externalRequires = epkgs: with epkgs; [ dash ivy s vterm ];
+}
diff --git a/tools/emacs-pkgs/term-switcher/term-switcher.el b/tools/emacs-pkgs/term-switcher/term-switcher.el
new file mode 100644
index 000000000000..c141a5e9cc08
--- /dev/null
+++ b/tools/emacs-pkgs/term-switcher/term-switcher.el
@@ -0,0 +1,63 @@
+;;; term-switcher.el --- Easily switch between open vterms
+;;
+;; Copyright (C) 2019-2020 Google Inc.
+;; Copyright (C) 2021-2023 The TVL Authors
+;;
+;; Author: Vincent Ambo <tazjin@tvl.su>
+;; Version: 1.1
+;; Package-Requires: (ivy s vterm)
+;;
+;;; Commentary:
+;;
+;; This package adds a function that lets users quickly switch between
+;; different open vterms via ivy.
+
+(require 'ivy)
+(require 's)
+(require 'seq)
+(require 'vterm)
+
+(defgroup term-switcher nil
+  "Customization options `term-switcher'.")
+
+(defcustom term-switcher-buffer-prefix "vterm<"
+  "String prefix for vterm terminal buffers. For example, if you
+  set your titles to match `vterm<...>' a useful prefix might be
+  `vterm<'."
+  :type '(string)
+  :group 'term-switcher)
+
+(defun ts/create-vterm ()
+  "Launch vterm, but don't open semi-broken vterms over TRAMP."
+  (if (file-remote-p default-directory)
+      (let ((default-directory "~"))
+        (vterm))
+    (vterm)))
+
+(defun ts/open-or-create-vterm (buffer)
+  "Switch to the terminal in BUFFER, or create a new one if buffer is nil."
+  (if buffer
+      (switch-to-buffer buffer)
+    (ts/create-vterm)))
+
+(defun ts/is-vterm-buffer (buffer)
+  "Determine whether BUFFER runs a vterm."
+  (equal 'vterm-mode (buffer-local-value 'major-mode buffer)))
+
+(defun ts/switch-to-terminal ()
+  "Switch to an existing vterm buffer or create a new one."
+
+  (interactive)
+  (let ((terms (seq-map (lambda (b) (cons (buffer-name b) b))
+                        (seq-filter #'ts/is-vterm-buffer (buffer-list)))))
+    (if terms
+        (ivy-read "Switch to vterm: "
+                  (cons "New vterm" (seq-map #'car terms))
+                  :caller 'ts/switch-to-terminal
+                  :preselect (s-concat "^" term-switcher-buffer-prefix)
+                  :require-match t
+                  :action (lambda (match)
+                            (ts/open-or-create-vterm (cdr (assoc match terms)))))
+      (ts/create-vterm))))
+
+(provide 'term-switcher)