make age-plugin-fido2-hmac work on darwin (NixOS#339299)

Author: Lassulus

pkgs/by-name/ag/age-plugin-fido2-hmac/package.nix

@@ -1,10 +1,27 @@
-{ lib
-, buildGoModule
-, fetchFromGitHub
-, libfido2
-, stdenv
+{
+  lib,
+  buildGoModule,
+  fetchFromGitHub,
+  stdenv,
+  libfido2,
+  openssl,
+  libcbor
 }:
+let
+  darwin_arch = if stdenv.hostPlatform.system == "aarch64-darwin" then "arm64" else "amd64";
+  darwin_configure = ''
+    chmod -R +w vendor/github.com/keys-pub/go-libfido2
+    cat << EOF > vendor/github.com/keys-pub/go-libfido2/fido2_static_${darwin_arch}.go
+    package libfido2
 
+    /*
+    #cgo darwin LDFLAGS: -framework CoreFoundation -framework IOKit -L${lib.getLib openssl}/lib -L${lib.getLib libcbor}/lib -lfido2
+    #cgo darwin CFLAGS: -I${libfido2.dev}/include -I${openssl.dev}/include
+    */
+    import "C"
+    EOF
+  '';
+in
 buildGoModule rec {
   pname = "age-plugin-fido2-hmac";
   version = "0.2.3";
@@ -18,18 +35,17 @@ buildGoModule rec {
 
   vendorHash = "sha256-h4/tyq9oZt41IfRJmmsLHUpJiPJ7YuFu59ccM7jHsFo=";
 
-  ldflags = [ "-s" "-w" ];
+  ldflags = [ "-s" "-w" "-X main.version=v${version}" ];
 
-  buildInputs = [
-    libfido2
-  ];
+  buildInputs = [ libfido2 ];
+
+  postConfigure = lib.optional stdenv.isDarwin darwin_configure;
 
   meta = with lib; {
     description = "Age plugin to encrypt files with fido2 tokens using the hmac-secret extension and non-discoverable credentials";
     homepage = "https://github.com/olastor/age-plugin-fido2-hmac/";
     license = licenses.mit;
     maintainers = with maintainers; [ matthewcroughan ];
     mainProgram = "age-plugin-fido2-hmac";
-    broken = stdenv.isDarwin;
   };
 }