Use packages.json for intel packages instead of awk script

pkgs/intel-oneapi/2023.nix

@@ -35,35 +35,18 @@ let
     mpi      = "2021.9.0";
   };
 
-  aptPackageIndex = stdenv.mkDerivation {
-    name = "intel-oneapi-packages";
-    srcs = [
-      # Run update.sh to update the package lists
-      ./amd64-packages ./all-packages
-    ];
-    phases = [ "installPhase" ];
-    installPhase = ''
-      awk -F': ' '\
-        BEGIN   { print "[ {" } \
-        NF==0 { empty=1; } \
-        NF && empty { print "} {"; empty=0; } \
-        /: /    { printf "%s = \"%s\";\n", $1, $2 } \
-        END     { print "} ]" }' $srcs > $out
-    '';
-  };
-
   findMatch = name:
   let
-    aptPackages = import aptPackageIndex;
+    aptPackages = builtins.fromJSON (builtins.readFile ./packages.json);
-    matches = lib.filter (x: name == x.Package) aptPackages;
+    matches = lib.filter (x: name == x.pname) aptPackages;
     n = lib.length matches;
     match = builtins.traceVerbose (name + " -- ${builtins.toString n}") (builtins.head matches);
 
     apthost = "https://apt.repos.intel.com/oneapi/";
   in
     {
-      url = apthost + match.Filename;
+      url = apthost + match.filename;
-      sha256 = match.SHA256;
+      sha256 = match.sha256;
     };
 
   uncompressDebs = debs: name: stdenv.mkDerivation {