Update rcodesign for recent MacOS

Author: hamishmack

overlays/default.nix

@@ -93,6 +93,7 @@ let
     cacheCompilerDeps = import ./cache-compiler-deps.nix;
     fetch-source = import ./fetch-source.nix;
     lazy-inputs = import ../lazy-inputs;
+    rcodesign = import ./rcodesign.nix;
   };
 
   composeExtensions = f: g: final: prev:
@@ -133,6 +134,7 @@ let
     cacheCompilerDeps
     fetch-source
     lazy-inputs
+    rcodesign
   ];
   combined = builtins.foldl' composeExtensions (_: _: { }) ordered;
 in overlays // { inherit combined; }

overlays/rcodesign.nix

@@ -0,0 +1,32 @@
+# nixpkgs is using `rcodesign` 0.22 and it fails to build on recent
+# versions of macOS (one of the tests fails validating signatures
+# in `/usr/bin`).
+final: prev: {
+  rcodesign = prev.rcodesign.override (old: {
+    rustPlatform = old.rustPlatform // {
+      buildRustPackage = args: old.rustPlatform.buildRustPackage (args // {
+        version = "0.27.0";
+
+        src = final.fetchFromGitHub {
+          owner = "hamishmack";
+          repo = "apple-platform-rs";
+          rev = "hkm/cargo-update";
+          hash = "sha256-gma2e73m2MDC8BAcIuclG/RPLhAHRLkehCa56f5835g=";
+        };
+
+        cargoHash = "sha256-4ra1oBQK/kXZTKvvq17kX2+49iKyXXT484Z6ON4bFbU=";
+
+        buildInputs = final.lib.optionals final.stdenv.hostPlatform.isDarwin [
+          final.darwin.apple_sdk_11_0.frameworks.Security
+          final.darwin.apple_sdk_11_0.frameworks.SystemConfiguration
+        ];
+
+        checkFlags = [
+          # Does network IO
+          "--skip=ticket_lookup::test::lookup_ticket"
+          "--skip=cli_tests"
+        ];
+      });
+    };
+  });
+}