build(flake): refactor

flake.nix

@@ -16,43 +16,44 @@
         lib = pkgs.lib;
         craneLib = inputs.crane.mkLib pkgs;
 
-        cargoToml = fromTOML (builtins.readFile ./Cargo.toml);
-        name = cargoToml.package.name;
-
-        dlDeps =
-          with pkgs;
-          [
-            # needed for both x11 and wayland
-            libxkbcommon
-            libGL
-
-            libx11
-            libxcursor
-            libxi
-            libxcb
-          ]
-          ++ lib.optionals stdenv.hostPlatform.isLinux [
-            vulkan-loader
-            wayland
-          ];
-
         commonArgs = {
-          # all that's needed for artifacts and checks
-          nativeBuildInputs = with pkgs; [
-            # pkg-config
-          ];
-          buildInputs = with pkgs; [
-          ];
-
           src = ./.;
-        };
 
-        # Build *just* the cargo dependencies,
+          strictDeps = true;
-        # to reuse them for build and test derivations.
+          __structuredAttrs = true;
+        };
         cargoArtifacts = craneLib.buildDepsOnly commonArgs;
 
-        # Build the actual crate itself,
+        cargoToml = fromTOML (builtins.readFile (commonArgs.src + "/Cargo.toml"));
-        # reusing the dependency artifacts from above.
+        name = cargoToml.package.name;
+
+        binArgs = commonArgs // {
+          inherit cargoArtifacts;
+
+          nativeBuildInputs = with pkgs; [
+            autoPatchelfHook
+          ];
+          buildInputs = with pkgs; [
+            libgcc
+          ];
+          runtimeDependencies =
+            with pkgs;
+            [
+              libxkbcommon
+              libGL
+
+              libx11
+              libxcursor
+              libxi
+              libxcb
+            ]
+            ++ lib.optionals stdenv.hostPlatform.isLinux [
+              vulkan-loader
+              wayland
+            ];
+
+          doCheck = false;
+        };
         crate =
           let
             desktopItem = pkgs.makeDesktopItem {
@@ -63,25 +64,11 @@
             };
           in
           craneLib.buildPackage (
-            commonArgs
+            binArgs
             // {
-              inherit cargoArtifacts;
-
-              nativeBuildInputs = commonArgs.nativeBuildInputs ++ [
-                pkgs.autoPatchelfHook
-              ];
-
-              buildInputs = commonArgs.buildInputs ++ [
-                pkgs.libgcc
-              ];
-
-              runtimeDependencies = dlDeps;
-
-              doCheck = false;
 
               postFixup = ''
-                mkdir -p "$out/share/applications"
+                cp -rs "${desktopItem}"/* "$out"
-                ln -s "${desktopItem}"/share/applications/* "$out/share/applications/"
               '';
             }
           );
@@ -101,9 +88,8 @@
         };
 
         devShells.default = craneLib.devShell {
-          LD_LIBRARY_PATH = lib.makeLibraryPath dlDeps;
+          LD_LIBRARY_PATH = lib.makeLibraryPath binArgs.runtimeDependencies;
 
-          inputsFrom = [ crate ];
           packages = with pkgs; [
             rust-analyzer
             mold