emacs: Add update script for manually packaged packages

pkgs/applications/editors/emacs/elisp-packages/update

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$( cd "$(dirname "$0")" ; pwd -P )"
+cd "$SCRIPT_DIR"
+
+./update-from-overlay
+
+./update-manual
+git commit -m "emacs.pkgs.manualPackages: $(date --iso)" -- .

pkgs/applications/editors/emacs/elisp-packages/update-manual

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$( cd "$(dirname "$0")" ; pwd -P )"
+cd "$SCRIPT_DIR"
+
+nix-build --no-out-link update-manual.nix | xargs -n 1 -P $(nproc) bash -c

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

@@ -0,0 +1,11 @@
+let
+  pkgs = import ../../../../../. {
+    config.allowBroken = true;
+  };
+  inherit (pkgs) lib emacs;
+  inherit (lib) isDerivation hasAttr filterAttrs mapAttrs attrValues;
+
+  # Extract updateScript's from manually package emacs packages
+  hasScript = filterAttrs (_: v: isDerivation v && hasAttr "updateScript" v) emacs.pkgs.manualPackages;
+
+in attrValues (mapAttrs (_: v: v.updateScript) hasScript)