maintainers/scripts/update-dotnet-lockfiles.nix: use update.nix

maintainers/scripts/update-dotnet-lockfiles.nix

@@ -8,69 +8,12 @@
   to 'fetch-deps', 'nuget-to-nix', or other changes to the dotnet build
   infrastructure. Regular updates should be done through the individual packages
   update scripts.
- */
-{ startWith ? null }:
-let
-  pkgs = import ../.. { config.allowAliases = false; };
-
-  inherit (pkgs) lib;
-
-  packagesWith = cond: pkgs:
-    let
-      packagesWithInner = attrs:
-        lib.concatLists (
-          lib.mapAttrsToList (name: elem:
-            let
-              result = builtins.tryEval elem;
-            in
-              if result.success then
-                let
-                  value = result.value;
-                in
-                  if lib.isDerivation value then
-                    lib.optional (cond value) value
-                  else
-                    if lib.isAttrs value && (value.recurseForDerivations or false || value.recurseForRelease or false) then
-                      packagesWithInner value
-                    else []
-              else []) attrs);
-    in
-      packagesWithInner pkgs;
-
-  packages = lib.unique
-    (lib.filter (p:
-      (builtins.tryEval p.outPath).success ||
-      builtins.trace "warning: skipping ${p.name} because it failed to evaluate" false)
-    ((pkgs: (lib.drop (lib.lists.findFirstIndex (p: p.name == startWith) 0 pkgs) pkgs))
-    (packagesWith (p: p ? fetch-deps) pkgs)));
-
-  helpText = ''
-    Please run:
-
-        % nix-shell maintainers/scripts/update-dotnet-lockfiles.nix
-  '';
-
-  fetchScripts = map (p: p.fetch-deps) packages;
-
-in pkgs.stdenv.mkDerivation {
-  name = "nixpkgs-update-dotnet-lockfiles";
-  buildCommand = ''
-    echo ""
-    echo "----------------------------------------------------------------"
-    echo ""
-    echo "Not possible to update packages using \`nix-build\`"
-    echo ""
-    echo "${helpText}"
-    echo "----------------------------------------------------------------"
-    exit 1
-  '';
-  shellHook = ''
-    unset shellHook # do not contaminate nested shells
-    set -e
-    for x in $fetchScripts; do
-      $x
-    done
-    exit
-  '';
-  inherit fetchScripts;
-}
+*/
+{ ... }@args:
+import ./update.nix (
+  {
+    predicate = _: _: true;
+    get-script = pkg: pkg.fetch-deps or null;
+  }
+  // args
+)