push sheeet

pkgs/development/compilers/dart/package-source-builders/objectbox_flutter_libs/default.nix

@@ -0,0 +1,50 @@
+{
+  lib,
+  stdenv,
+  fetchzip,
+  replaceVars,
+}:
+
+{ version, src, ... }:
+
+let
+  selectSystem =
+    attrs:
+    attrs.${stdenv.hostPlatform.system}
+      or (throw "objectbox_flutter_libs: ${stdenv.hostPlatform.system} is not supported");
+
+  arch = selectSystem {
+    x86_64-linux = "x64";
+    aarch64-linux = "aarch64";
+  };
+
+  objectbox-sync = fetchzip {
+    url = "https://github.com/objectbox/objectbox-c/releases/download/v4.0.2/objectbox-sync-linux-${arch}.tar.gz";
+    hash = selectSystem {
+      x86_64-linux = "sha256-VXTuCYg0ZItK+lAs7xkNlxO0rUPnbRZOP5RAXbcRyjM=";
+      aarch64-linux = "sha256-kNlrBRR/qDEhdU34f4eDQLgYkYAIfFC8/of4rgL+m6k=";
+    };
+    stripRoot = false;
+  };
+in
+stdenv.mkDerivation {
+  pname = "objectbox_flutter_libs";
+  inherit version src;
+  inherit (src) passthru;
+
+  patches = [
+    (replaceVars ./CMakeLists.patch {
+      OBJECTBOX_SHARED_LIBRARY = "${objectbox-sync}/lib/libobjectbox.so";
+    })
+  ];
+
+  installPhase = ''
+    runHook preInstall
+
+    cp -r . $out
+
+    runHook postInstall
+  '';
+
+  meta.sourceProvenance = with lib.sourceTypes; [ binaryBytecode ];
+}