From 7c10ea23822ceb4fd3a640c8c16eea15bb6b9617 Mon Sep 17 00:00:00 2001
From: Amadey Vorontsov <vorontsov@amadey.xyz>
Date: Fri, 15 May 2026 23:11:06 +0000
Subject: [PATCH] [M7] flake: lib.buildCppPackage + packages.default

---
 flake.nix | 67 ++++++++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 52 insertions(+), 15 deletions(-)

diff --git a/flake.nix b/flake.nix
index 45e0b04..7d75c10 100644
--- a/flake.nix
+++ b/flake.nix
@@ -10,22 +10,61 @@
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = import nixpkgs { inherit system; };
-        cargoxx = pkgs.gcc15Stdenv.mkDerivation {
-          # Fill rules here
-        };
-        buildCppPackage = attrs: pkgs.gcc15Stdenv.mkDerivation {
-          pname = attrs.pname;
-          version = attrs.version;
-          buildPhase = ''
-            cargoxx build
+        cargoxx-bin = pkgs.gcc15Stdenv.mkDerivation {
+          pname = "cargoxx";
+          version = "0.1.0";
+          src = ./.;
+          nativeBuildInputs = [
+            pkgs.cmake
+            pkgs.ninja
+          ];
+          buildInputs = [
+            pkgs.sqlite
+            pkgs.reproc
+            pkgs.catch2_3
+          ];
+          configurePhase = ''
+            cmake -S build -B build/release -G Ninja \
+              -DCMAKE_BUILD_TYPE=Release
           '';
+          buildPhase = ''
+            cmake --build build/release
+          '';
+          installPhase = ''
+            mkdir -p $out/bin
+            cp build/release/cargoxx $out/bin/
+          '';
+          hardeningDisable = [ "all" ];
         };
+
+        buildCppPackage = { src, name ? null, ... }@args:
+          let
+            lock = builtins.fromTOML (builtins.readFile (src + "/Cargoxx.lock"));
+            root = builtins.head
+              (builtins.filter (p: !(p ? linkdb_source)) lock.package);
+            pname = if name != null then name else root.name;
+          in pkgs.gcc15Stdenv.mkDerivation {
+            inherit pname src;
+            version = root.version;
+            nativeBuildInputs = [ cargoxx-bin pkgs.nix ];
+            buildPhase = ''
+              export HOME=$(mktemp -d)
+              cargoxx build --release
+            '';
+            installPhase = ''
+              mkdir -p $out/bin
+              cp build/release/${pname}     $out/bin/ 2>/dev/null || \
+              cp build/release/${pname}_bin $out/bin/${pname}
+            '';
+            hardeningDisable = [ "all" ];
+            __noChroot = true;
+          };
       in {
+        packages.default = cargoxx-bin;
         lib.buildCppPackage = buildCppPackage;
-        package = cargoxx;
-        devShell = pkgs.gcc15Stdenv.mkDerivation {
-          name = "shell";
-          version = "1.0";
+        devShells.default = pkgs.gcc15Stdenv.mkDerivation {
+          name = "cargoxx-dev";
+          version = "0.1.0";
           nativeBuildInputs = [
             pkgs.ninja
             pkgs.cmake
@@ -35,9 +74,7 @@
             pkgs.sqlite
             pkgs.catch2_3
           ];
-          hardeningDisable = [
-            "all"
-          ];
+          hardeningDisable = [ "all" ];
         };
       });
 }