feat(wpcarro/emacs): Package bookmark.el

More Elisp packaging :)

Change-Id: Ia4971de0815d12f8da1eaa911fa17b8b4896415d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7383
Reviewed-by: wpcarro <wpcarro@gmail.com>
Tested-by: BuildkiteCI

users/wpcarro/emacs/pkgs/bookmark/bookmark.el

@@ -0,0 +1,50 @@
+;;; bookmark.el --- Saved files and directories on my filesystem -*- lexical-binding: t -*-
+
+;; Author: William Carroll <wpcarro@gmail.com>
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "24.3"))
+
+;;; Commentary:
+;; A more opinionated version of Emacs's builtin `jump-to-register'.
+
+;;; Code:
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Dependencies
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(require 'project)
+(require 'general)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; Configuration
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(cl-defstruct bookmark label path kbd)
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+;; API
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+
+(defun bookmark-open (b)
+  "Open bookmark, B, as either a project directory or a regular directory."
+  (with-temp-buffer
+    (cd (bookmark-path b))
+    (call-interactively #'project-find-file)))
+
+(defun bookmark-install-kbd (b)
+  "Define two functions to explore B and assign them to keybindings."
+  (eval `(defun ,(intern (format "bookmark-visit-%s" (bookmark-label b))) ()
+           (interactive)
+           (find-file ,(bookmark-path b))))
+  (eval `(defun ,(intern (format "bookmark-browse-%s" (bookmark-label b))) ()
+           (interactive)
+           (bookmark-open ,b)))
+  (general-define-key
+   :prefix "<SPC>"
+   :states '(motion)
+   (format "J%s" (bookmark-kbd b)) `,(intern (format "bookmark-visit-%s" (bookmark-label b)))
+   (format "j%s" (bookmark-kbd b)) `,(intern (format "bookmark-browse-%s" (bookmark-label b)))))
+
+(provide 'bookmark)
+;;; bookmark.el ends here

users/wpcarro/emacs/pkgs/bookmark/default.nix

@@ -0,0 +1,13 @@
+{ pkgs, depot, ... }:
+
+pkgs.callPackage
+  ({ emacsPackages }:
+  emacsPackages.trivialBuild {
+    pname = "bookmark";
+    version = "1.0.0";
+    src = ./bookmark.el;
+    packageRequires = (with pkgs.emacsPackages; [
+      general
+    ]);
+  })
+{ }