diff options
Diffstat (limited to 'users/wpcarro/emacs/pkgs/vterm-mgt')
| -rw-r--r-- | users/wpcarro/emacs/pkgs/vterm-mgt/README.md | 17 | ||||
| -rw-r--r-- | users/wpcarro/emacs/pkgs/vterm-mgt/default.nix | 19 | ||||
| -rw-r--r-- | users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el | 140 |
3 files changed, 176 insertions, 0 deletions
diff --git a/users/wpcarro/emacs/pkgs/vterm-mgt/README.md b/users/wpcarro/emacs/pkgs/vterm-mgt/README.md new file mode 100644 index 0000000000..b855826929 --- /dev/null +++ b/users/wpcarro/emacs/pkgs/vterm-mgt/README.md @@ -0,0 +1,17 @@ +# vterm-mgt.el + +[](https://buildkite.com/tvl/depot) + +[emacs-libvterm](https://github.com/akermu/emacs-libvterm) is a feature-complete +terminal emulator inside Emacs based on libvterm. + +`vterm-mgt.el`, adds functionality on top of `vterm` to allow you to: + +* find-or-create `vterm` instances +* fuzzily switch between existing `vterm` buffers +* cycle through existing `vterm` instances +* easily rename `vterm` buffers + +## Alternatives to vterm-mgt.el + +* [multi-vterm](https://github.com/suonlight/multi-vterm) diff --git a/users/wpcarro/emacs/pkgs/vterm-mgt/default.nix b/users/wpcarro/emacs/pkgs/vterm-mgt/default.nix new file mode 100644 index 0000000000..88eb550204 --- /dev/null +++ b/users/wpcarro/emacs/pkgs/vterm-mgt/default.nix @@ -0,0 +1,19 @@ +{ pkgs, depot, ... }: + +pkgs.emacsPackages.trivialBuild { + pname = "vterm-mgt"; + version = "1.0.0"; + src = ./vterm-mgt.el; + packageRequires = + (with pkgs.emacsPackages; [ + vterm + ]) ++ + (with depot.users.wpcarro.emacs.pkgs; [ + cycle + ]); + passthru.meta.ci.extraSteps.github = depot.tools.releases.filteredGitPush { + filter = ":/users/wpcarro/emacs/pkgs/vterm-mgt"; + remote = "git@github.com:wpcarro/vterm-mgt.el.git"; + ref = "refs/heads/canon"; + }; +} diff --git a/users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el b/users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el new file mode 100644 index 0000000000..c082e54a59 --- /dev/null +++ b/users/wpcarro/emacs/pkgs/vterm-mgt/vterm-mgt.el @@ -0,0 +1,140 @@ +;;; vterm-mgt.el --- Help me manage my vterm instances -*- lexical-binding: t -*- + +;; Author: William Carroll <wpcarro@gmail.com> +;; Version: 0.0.1 +;; Package-Requires: ((emacs "25.1")) + +;;; Commentary: +;; Supporting functions to instantiate vterm buffers, kill existing vterm +;; buffers, rename vterm buffers, cycle forwards and backwards through vterm +;; buffers. +;; +;; Many of the functions defined herein are intended to be bound to +;; `vterm-mode-map'. Some assertions are made to guard against calling +;; functions that are intended to be called from outside of a vterm buffer. +;; These assertions shouldn't error when the functions are bound to +;; `vterm-mode-map'. If for some reason, you'd like to bind these functions to +;; a separate keymap, caveat emptor. + +;;; Code: + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Dependencies +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(require 'cycle) +(require 'vterm) +(require 'seq) + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; Configuration +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; + +(defgroup vterm-mgt nil + "Customization options for `vterm-mgt'." + :group 'vterm) + +(defcustom vterm-mgt-scroll-on-focus nil + "When t, call `end-of-buffer' after focusing a vterm instance." + :type '(boolean) + :group 'vterm-mgt) + +(defconst vterm-mgt--instances (cycle-new) + "A cycle tracking all of my vterm instances.") + +(defun vterm-mgt--instance? (b) + "Return t if the buffer B is a vterm instance." + (equal 'vterm-mode (buffer-local-value 'major-mode b))) + +(defun vterm-mgt--assert-vterm-buffer () + "Error when the `current-buffer' is not a vterm buffer." + (unless (vterm-mgt--instance? (current-buffer)) + (error "Current buffer is not a vterm buffer"))) + +(defun vterm-mgt-next () + "Replace the current buffer with the next item in `vterm-mgt--instances'. +This function should be called from a buffer running vterm." + (interactive) + (vterm-mgt--assert-vterm-buffer) + (vterm-mgt-reconcile-state) + (cycle-focus-item! (current-buffer) vterm-mgt--instances) + (switch-to-buffer (cycle-next! vterm-mgt--instances)) + (when vterm-mgt-scroll-on-focus (end-of-buffer))) + +(defun vterm-mgt-prev () + "Replace the current buffer with the previous item in `vterm-mgt--instances'. +This function should be called from a buffer running vterm." + (interactive) + (vterm-mgt--assert-vterm-buffer) + (vterm-mgt-reconcile-state) + (cycle-focus-item! (current-buffer) vterm-mgt--instances) + (switch-to-buffer (cycle-prev! vterm-mgt--instances)) + (when vterm-mgt-scroll-on-focus (end-of-buffer))) + +(defun vterm-mgt-instantiate () + "Create a new vterm instance. + +Prefer calling this function instead of `vterm'. This function ensures that the + newly created instance is added to `vterm-mgt--instances'. + +If however you must call `vterm', if you'd like to cycle through vterm + instances, make sure you call `vterm-mgt-reconcile-state' to allow vterm-mgt + to collect any untracked vterm instances." + (interactive) + (vterm-mgt-reconcile-state) + (let ((buffer (vterm t))) + (cycle-append! buffer vterm-mgt--instances) + (cycle-focus-item! buffer vterm-mgt--instances))) + +(defun vterm-mgt-kill () + "Kill the current buffer and remove it from `vterm-mgt--instances'. +This function should be called from a buffer running vterm." + (interactive) + (vterm-mgt--assert-vterm-buffer) + (let* ((buffer (current-buffer))) + (when (kill-buffer buffer) + (vterm-mgt-reconcile-state)))) + +(defun vterm-mgt-find-or-create () + "Call `switch-to-buffer' on a focused vterm instance if there is one. + +When `cycle-focused?' returns nil, focus the first item in the cycle. When +there are no items in the cycle, call `vterm-mgt-instantiate' to create a vterm +instance." + (interactive) + (vterm-mgt-reconcile-state) + (if (cycle-empty? vterm-mgt--instances) + (vterm-mgt-instantiate) + (if (cycle-focused? vterm-mgt--instances) + (switch-to-buffer (cycle-current vterm-mgt--instances)) + (progn + (cycle-jump! 0 vterm-mgt--instances) + (switch-to-buffer (cycle-current vterm-mgt--instances)))))) + +(defun vterm-mgt-rename-buffer (name) + "Rename the current buffer ensuring that its NAME is wrapped in *vterm<...>*. +This function should be called from a buffer running vterm." + (interactive "SRename vterm buffer: ") + (vterm-mgt--assert-vterm-buffer) + (rename-buffer (format "*vterm<%s>*" name))) + +(defun vterm-mgt-reconcile-state () + "Fill `vterm-mgt--instances' with the existing vterm buffers. + +If for whatever reason, the state of `vterm-mgt--instances' is corrupted and + misaligns with the state of vterm buffers in Emacs, use this function to + restore the state." + (interactive) + (setq vterm-mgt--instances + (cycle-from-list (seq-filter #'vterm-mgt--instance? (buffer-list))))) + +(defun vterm-mgt-select () + "Select a vterm instance by name from the list in `vterm-mgt--instances'." + (interactive) + (vterm-mgt-reconcile-state) + (switch-to-buffer + (completing-read "Switch to vterm: " + (seq-map #'buffer-name (cycle-to-list vterm-mgt--instances))))) + +(provide 'vterm-mgt) +;;; vterm-mgt.el ends here |