emacs: replace fetchFromSavannah with mirror; adjust build (#436020)

pkgs/applications/editors/emacs/default.nix

@@ -13,7 +13,7 @@ lib.makeScope pkgs.newScope (
       inherit lib;
       inherit (pkgs)
         fetchFromBitbucket
-        fetchFromSavannah
+        fetchurl
         ;
     };
 

pkgs/applications/editors/emacs/make-emacs.nix

@@ -69,7 +69,6 @@
   # Boolean flags
   withNativeCompilation ? stdenv.buildPlatform.canExecute stdenv.hostPlatform,
   noGui ? false,
-  srcRepo ? true,
   withAcl ? false,
   withAlsaLib ? false,
   withAthena ? false,
@@ -200,9 +199,11 @@ mkDerivation (finalAttrs: {
     ];
 
   postPatch = lib.concatStringsSep "\n" [
-    (lib.optionalString srcRepo ''
-      rm -fr .git
-    '')
+
+    # See: https://github.com/NixOS/nixpkgs/issues/170426
+    ''
+      find . -type f \( -name "*.elc" -o -name "*loaddefs.el" \) -exec rm {} \;
+    ''
 
     # Add the name of the wrapped gvfsd
     # This used to be carried as a patch but it often got out of sync with
@@ -247,11 +248,6 @@ mkDerivation (finalAttrs: {
   nativeBuildInputs = [
     makeWrapper
     pkg-config
-  ]
-  ++ lib.optionals (variant == "macport") [
-    texinfo
-  ]
-  ++ lib.optionals srcRepo [
     autoreconfHook
     texinfo
   ]

pkgs/applications/editors/emacs/sources.nix

@@ -1,7 +1,7 @@
 {
   lib,
   fetchFromBitbucket,
-  fetchFromSavannah,
+  fetchurl,
 }:
 
 let
@@ -26,9 +26,9 @@ let
       src =
         {
           "mainline" = (
-            fetchFromSavannah {
-              repo = "emacs";
-              inherit rev hash;
+            fetchurl {
+              url = "mirror://gnu/emacs/emacs-${rev}.tar.xz";
+              inherit hash;
             }
           );
           "macport" = (
@@ -108,7 +108,7 @@ in
     version = "30.2";
     variant = "mainline";
     rev = "30.2";
-    hash = "sha256-3Lfb3HqdlXqSnwJfxe7npa4GGR9djldy8bKRpkQCdSA=";
+    hash = "sha256-s/NvGKbdJxVxM3AWYlfeL64B+dOM/oeM7Zsebe1b79k=";
     patches = fetchpatch: [
       (builtins.path {
         name = "inhibit-lexical-cookie-warning-67916.patch";