pkgs/den-http-get-updater: allow to provide unpack and name argument per prefetch

pkgs/by-name/de/den-http-get-updater/package.nix

@@ -23,6 +23,8 @@
   #   };
   #   prefetchHash: string?;
   #   targetHash: string?;
+  #   unpack: bool?;
+  #   name: string?;
   # }[]
   #
   prefetchList ? [],
@@ -38,7 +40,6 @@
   unpack ? true,
   hashAlgo ? "sha256",
   hashFormat ? "sri",
-  name ? if unpack then "source" else null,
 }:
 
 let
@@ -52,7 +53,8 @@ let
     );
     assert lib.isAttrs x.prefetchUrlLocation && lib.isString x.prefetchUrlLocation.attrpath or null;
     rec {
-      inherit fileLocation hashAlgo hashFormat;
+      inherit fileLocation hashAlgo hashFormat unpack;
+      name = if x.unpack or unpack then "source" else null;
       mark = builtins.hashString "sha256" x.previousHash;
       markRegexEscape = lib.escapeRegex mark;
       realFileLocation = builtins.toString x.fileLocation or fileLocation;
@@ -66,8 +68,6 @@ let
 
   previousVersionRegexEscape = lib.escapeRegex previousVersion;
 
-  nixUnpack = lib.optionalString unpack "--unpack";
-  nixName = lib.optionalString (!builtins.isNull name) "--name \"${lib.escapeShellArg name}\"";
 
   path = lib.makeBinPath ([
     curl
@@ -104,10 +104,15 @@ writeScript "den-http-get-updater" (''
 + lib.concatStringsSep "\n" (lib.map ({
   fileLocation,
   markRegexEscape,
+  name,
   prefetchUrlLocationShellEscape,
   realFileLocationShellEscape,
+  unpack,
   ...
-}: ''
+}: let
+  nixUnpack = lib.optionalString unpack "--unpack";
+  nixName = lib.optionalString (!builtins.isNull name) "--name \"${lib.escapeShellArg name}\"";
+in ''
   nixUrlsResult=$(nix-instantiate --eval --json --strict \
     "${prefetchUrlLocationShellEscape.file}" \
     -A "${prefetchUrlLocationShellEscape.attrpath}"