From e1d5089d237a34c4977cdf5dfa65c9f58b351d11 Mon Sep 17 00:00:00 2001
From: Amlal El Mahrouss <amlal@nekernel.org>
Date: Thu, 19 Feb 2026 07:49:30 +0100
Subject: chore: build: project infra tweaks.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>
---
 src/lib/JSONManifestBuilder.cpp | 124 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/lib/JSONManifestBuilder.cpp

(limited to 'src/lib/JSONManifestBuilder.cpp')

diff --git a/src/lib/JSONManifestBuilder.cpp b/src/lib/JSONManifestBuilder.cpp
new file mode 100644
index 0000000..7f52f51
--- /dev/null
+++ b/src/lib/JSONManifestBuilder.cpp
@@ -0,0 +1,124 @@
+// ============================================================= //
+// NeBuild
+// PURPOSE: JSON support.
+// Copyright (C) 2024-2025, Amlal El Mahrouss and NeKernel Authors, licensed under BSD-3 license.
+// ============================================================= //
+
+#include <NeBuildKit/JSONManifestBuilder.h>
+#include <json/json.h>
+#include <fstream>
+
+namespace NeBuild {
+namespace FS = std::filesystem;
+
+/// =========================================================== ///
+/// @brief Builds a nlohmann::json target from a nlohmann::json file.
+/// @param arg_sz filename size (must be 1 or greater).
+/// @param arg_val filename path (must be a valid nlohmann::json file).
+/// @return bool: whether the build has succeeded or not.
+/// =========================================================== ///
+bool JSONManifestBuilder::BuildTarget(BuildConfig& config) {
+  std::string path;
+
+  if (config.path_.empty()) {
+    NeBuild::Logger::info() << "error: file path is empty" << std::endl;
+    return false;
+  } else {
+    path = config.path_;
+
+    if (!FS::exists(path)) {
+      NeBuild::Logger::info() << "error: file '" << path << "' does not exist"
+                              << std::endl;
+      return false;
+    }
+  }
+
+  try {
+    std::ifstream json(path);
+
+    if (!json.good()) {
+      NeBuild::Logger::info() << "error: file '" << path
+                              << "' is not a valid nlohmann::json" << std::endl;
+      return false;
+    }
+
+    nlohmann::json json_obj = nlohmann::json::parse(json);
+
+    try {
+      nlohmann::json description = json_obj["description"];
+
+      NeBuild::Logger::info() << "package path: " << path << std::endl;
+
+      if (auto res = description.get<std::string>(); !res.empty())
+        NeBuild::Logger::info() << "description: " << res << std::endl;
+    } catch (...) {
+      
+    }
+
+    std::string compiler = json_obj["compiler_path"].get<std::string>();
+
+    std::string command = compiler + " ";
+
+    nlohmann::json header_search_path = json_obj["compiler_headers_path"];
+
+    for (auto& headers : header_search_path) {
+      command += "-I" + headers.get<std::string>() + " ";
+    }
+
+    nlohmann::json headers_path = json_obj["headers_path"];
+
+    for (auto& headers : headers_path) {
+      command += "-I" + headers.get<std::string>() + " ";
+    }
+
+    nlohmann::json sources_files = json_obj["sources_path"];
+
+    for (auto& sources : sources_files) {
+      command += sources.get<std::string>() + " ";
+    }
+
+    nlohmann::json macros_list = json_obj["cpp_macros"];
+
+    for (auto& macro : macros_list) {
+      command += "-D" + macro.get<std::string>() + " ";
+    }
+
+    nlohmann::json compiler_flags = json_obj["compiler_flags"];
+
+    for (auto& flag : compiler_flags) {
+      command += flag.get<std::string>() + " ";
+    }
+
+    if (json_obj["compiler_std"].is_string())
+      command += "-std=" + json_obj["compiler_std"].get<std::string>() + " ";
+
+    command += "-o " + json_obj["output_name"].get<std::string>();
+
+    auto target = json_obj["output_name"].get<std::string>();
+
+    NeBuild::Logger::info() << "output path: " << target << "\n";
+
+    auto ret_exec = std::system(command.c_str());
+
+    if (ret_exec > 0) {
+      NeBuild::Logger::info() << "error: exit with message: " << std::strerror(ret_exec) << ""
+                              << std::endl;
+      config.has_failed_ = true;
+      return false;
+    }
+  } catch (const std::exception& err) {
+    NeBuild::Logger::info() << "error: exit with message: " << err.what() << "" << std::endl;
+    config.has_failed_ = true;
+    return false;
+  }
+
+  return true;
+}
+
+/// =========================================================== ///
+/// @brief Returns the build system name.
+/// =========================================================== ///
+const std::string_view JSONManifestBuilder::BuildSystem() {
+  return "NeBuild (nlohmann::json)";
+}
+}  // namespace NeBuild
-- 
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