emacs: default to 30 (#386348)

Author: jian-lin

pkgs/top-level/aliases.nix

@@ -419,6 +419,7 @@ mapAliases {
   emacsMacport = emacs-macport; # Added 2023-08-10
   emacsNativeComp = emacs28NativeComp; # Added 2022-06-08
   emacsWithPackages = throw "'emacsWithPackages' has been renamed to/replaced by 'emacs.pkgs.withPackages'"; # Converted to throw 2024-10-17
+  emacsPackages = emacs.pkgs; # Added 2025-03-02
 
   EmptyEpsilon = empty-epsilon; # Added 2024-07-14
   enyo-doom = enyo-launcher; # Added 2022-09-09

pkgs/top-level/all-packages.nix

@@ -13186,20 +13186,17 @@ with pkgs;
   ;
 
   emacs-macport = emacs29-macport;
-  emacs = emacs29;
-  emacs-gtk = emacs29-gtk3;
-  emacs-nox = emacs29-nox;
+  emacs = emacs30;
+  emacs-gtk = emacs30-gtk3;
+  emacs-nox = emacs30-nox;
+  emacs-pgtk = emacs30-pgtk;
 
   emacsPackagesFor = emacs: import ./emacs-packages.nix {
     inherit (lib) makeScope makeOverridable dontRecurseIntoAttrs;
     emacs' = emacs;
     pkgs' = pkgs;  # default pkgs used for bootstrapping the emacs package set
   };
 
-  # This alias should live in aliases.nix but that would cause Hydra not to evaluate/build the packages.
-  # If you turn this into "real" alias again, please add it to pkgs/top-level/packages-config.nix again too
-  emacsPackages = emacs.pkgs // { __recurseIntoDerivationForReleaseJobs = true; };
-
   epick = callPackage ../applications/graphics/epick {
     inherit (darwin.apple_sdk.frameworks) AppKit;
   };

pkgs/top-level/packages-config.nix

@@ -36,6 +36,10 @@
         compiler = recurseIntoAttrs super.haskell.compiler;
       };
 
+      # emacsPackages is an alias for emacs.pkgs
+      # Re-introduce emacsPackages here so that emacs.pkgs can be searched.
+      emacsPackages = emacs.pkgs;
+
       # minimal-bootstrap packages aren't used for anything but bootstrapping our
       # stdenv. They should not be used for any other purpose and therefore not
       # show up in search results or repository tracking services that consume our