refactor(package): share more stuff

This should hopefully speed up the nix evals

.forgejo/workflows/check.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: https://git.salame.cl/actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - run: nix --version
       - name: Generate size report
-        uses: "https://git.salame.cl/jalil/nix-flake-outputs-size@6b0b78e4962d7aae6243b4601ba8257be99e3a70" # main
+        uses: "https://git.salame.cl/jalil/nix-flake-outputs-size@e5d1a0751adb4963c0a4982503806ae5f19f52da" # main
         with:
           comment-on-pr: ${{ github.ref_name != 'main' }}
           generate-artifact: ${{ github.ref_name == 'main' }}

default.nix

@@ -1,15 +1,16 @@
+let
+  inherit (builtins.getFlake (builtins.toString ./.)) inputs;
+in
 {
-  pkgs ?
+  pkgs ? inputs.nixpkgs.legacyPackages.${builtins.currentSystem},
-    (builtins.getFlake (builtins.toString ./.)).inputs.nixpkgs.legacyPackages.${builtins.currentSystem},
   lib ? pkgs.lib,
-  crane ? (builtins.getFlake (builtins.toString ./.)).inputs.crane,
+  crane ? inputs.crane,
-  pkgSrc ? ./.,
+  craneLib ? crane.mkLib pkgs,
+  cargoArtifacts ? null,
+  src ? craneLib.cleanCargoSource ./.,
   mold ? pkgs.mold,
 }:
 let
-  craneLib = crane.mkLib pkgs;
-  src = craneLib.cleanCargoSource pkgSrc;
-
   commonArgs = {
     inherit src;
     strictDeps = true;
@@ -26,12 +27,13 @@ let
       mainProgram = "webnsupdate";
     };
   };
-
-  cargoArtifacts = craneLib.buildDepsOnly commonArgs;
 in
 craneLib.buildPackage (
   lib.mergeAttrsList [
     commonArgs
-    { inherit cargoArtifacts; }
+    {
+      cargoArtifacts =
+        if cargoArtifacts == null then craneLib.buildDepsOnly commonArgs else cargoArtifacts;
+    }
   ]
 )

flake-modules/package.nix

@@ -44,8 +44,7 @@ in
         { inherit cargoArtifacts; }
       ];
       webnsupdate = pkgs.callPackage ../default.nix {
-        inherit crane;
+        inherit craneLib cargoArtifacts src;
-        pkgSrc = src;
       };
     in
     {