emacs.pkgs.control-lock: Add package (#166520)

* emacs.pkgs.control-lock: Add package

* emacs.pkgs.control-lock: Address PR comments

pkgs/applications/editors/emacs/elisp-packages/control-lock/default.nix

@@ -0,0 +1,23 @@
+{ lib, stdenv, fetchurl }:
+
+stdenv.mkDerivation {
+  name = "control-lock";
+
+  src = fetchurl {
+    url = "https://github.com/emacsmirror/emacswiki.org/blob/185fdc34fb1e02b43759ad933d3ee5646b0e78f8/control-lock.el";
+    sha256 = "1b5xcgq2r565pr1c14dwrmn1fl05p56infapa5pqvajv2kpfla7h";
+  };
+
+  dontUnpack = true;
+
+  installPhase = ''
+    install -d $out/share/emacs/site-lisp
+    install $src $out/share/emacs/site-lisp/control-lock.el
+  '';
+
+  meta = {
+    description = "Like caps-lock, but for your control key.  Give your pinky a rest!";
+    homepage = "https://www.emacswiki.org/emacs/control-lock.el";
+    platforms = lib.platforms.all;
+  };
+}

pkgs/applications/editors/emacs/elisp-packages/manual-packages.nix

@@ -190,6 +190,8 @@
 
   perl-completion = callPackage ./perl-completion { };
 
+  control-lock = callPackage ./control-lock { };
+
   plz = callPackage ./plz { };
 
   pod-mode = callPackage ./pod-mode { };