gnu: Add emacs-lsp-booster.

* gnu/packages/rust-apps.scm (emacs-lsp-booster): New variable.

Change-Id: If89f9941662ed01ddec578b220f69e6370775103
Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

gnu/packages/rust-apps.scm

@@ -30,6 +30,7 @@
 ;;; Copyright © 2024 Troy Figiel <troy@troyfigiel.com>
 ;;; Copyright © 2024 Herman Rimm <herman@rimm.ee>
 ;;; Copyright © 2024 Tomas Volf <~@wolfsden.cz>
+;;; Copyright © 2024 Suhail Singh <suhail@bayesians.ca>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -71,6 +72,7 @@
   #:use-module (gnu packages crates-windows)
   #:use-module (gnu packages curl)
   #:use-module (gnu packages documentation)
+  #:use-module (gnu packages emacs)
   #:use-module (gnu packages fontutils)
   #:use-module (gnu packages freedesktop)
   #:use-module (gnu packages haskell-xyz)
@@ -502,6 +504,43 @@ Features include:
 @end enumerate\n")
     (license license:gpl3)))
 
+(define-public emacs-lsp-booster
+  (package
+    (name "emacs-lsp-booster")
+    (version "0.2.0")
+    (source
+     (origin
+       (method git-fetch)
+       (uri (git-reference
+             (url "https://github.com/blahgeek/emacs-lsp-booster")
+             (commit (string-append "v" version))))
+       (file-name (git-file-name name version))
+       (sha256
+        (base32 "1xx32ms3mpi1clxf74mx7nanj0iw9qkmhi0a53fx8fkz0jw2fq8f"))))
+    (build-system cargo-build-system)
+    (arguments
+     (list
+      #:cargo-inputs `(("rust-anyhow" ,rust-anyhow-1)
+                       ("rust-clap" ,rust-clap-4)
+                       ("rust-clap-verbosity-flag" ,rust-clap-verbosity-flag-2)
+                       ("rust-lazy-static" ,rust-lazy-static-1)
+                       ("rust-log" ,rust-log-0.4)
+                       ("rust-serde" ,rust-serde-1)
+                       ("rust-serde-json" ,rust-serde-json-1)
+                       ("rust-smallvec" ,rust-smallvec-1)
+                       ("rust-env-logger" ,rust-env-logger-0.10))
+      #:cargo-development-inputs `(("rust-emacs" ,rust-emacs-0.18)
+                                   ("rust-tempfile" ,rust-tempfile-3))
+      #:install-source? #f))
+    (native-inputs (list emacs))    ; Not emacs-minimal
+    (home-page "https://github.com/blahgeek/emacs-lsp-booster")
+    (synopsis "Emacs LSP performance booster")
+    (description
+     "@code{emacs-lsp-booster} improves the performance of @code{lsp-mode} and
+@code{eglot} Emacs packages using a wrapper executable.  See the home-page for
+configuration instructions.")
+    (license license:expat)))
+
 (define-public eza
   (package
     (name "eza")