racket-minimal: init at 6.12.0 (same as racket)

Racket without the bundled packages, such as Mr Racket.

The essential package racket-libs is included, as well as libraries
that live in collections. In particular, raco and the pkg library are
still bundled.

pkgs/development/interpreters/racket/default.nix

@@ -35,8 +35,13 @@ stdenv.mkDerivation rec {
   name = "racket-${version}";
   version = "6.12";
 
-  src = fetchurl {
-    url = "https://mirror.racket-lang.org/installers/${version}/${name}-src.tgz";
+  src = (stdenv.lib.makeOverridable ({ name, sha256 }:
+    fetchurl rec {
+      url = "https://mirror.racket-lang.org/installers/${version}/${name}-src.tgz";
+      inherit sha256;
+    }
+  )) {
+    inherit name;
     sha256 = "0cwcypzjfl9py1s695mhqkiapff7c1w29llsmdj7qgn58wl0apk5";
   };
 

pkgs/development/interpreters/racket/minimal.nix

@@ -0,0 +1,10 @@
+{ racket
+}:
+
+racket.overrideAttrs (oldAttrs: rec {
+  name = "racket-minimal-${oldAttrs.version}";
+  src = oldAttrs.src.override {
+    inherit name;
+    sha256 = "0c565jy2y3gjl5lncd5adjsrj8c24p4i062kphv26ni5q1nn5ip5";
+  };
+})

pkgs/top-level/all-packages.nix

@@ -7015,6 +7015,7 @@ with pkgs;
     # https://github.com/NixOS/nixpkgs/pull/31017#issuecomment-343574769
     stdenv = overrideCC stdenv gcc7;
   };
+  racket-minimal = callPackage ../development/interpreters/racket/minimal.nix { };
 
   rakudo = callPackage ../development/interpreters/rakudo {
     inherit (darwin.apple_sdk.frameworks) CoreServices ApplicationServices;