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// ============================================================= //
// nebuild
// Copyright (C) 2024-2025, Amlal El Mahrouss, all rights reserved.
// ============================================================= //
#include <BuildKit/JSONManifestBuilder.h>
using JSON = nlohmann::json;
namespace FS = std::filesystem;
using namespace NeBuild;
/// @brief Builds a JSON target from a JSON file.
/// @param arg_sz filename size (must be 1 or greater).
/// @param arg_val filename path (must be a valid JSON file).
/// @retval true building has succeeded.
/// @retval false fail to build, see error message.
bool JSONManifestBuilder::BuildTarget(const std::string& argv_val, const bool dry_run) {
std::string path;
if (argv_val.empty()) {
NeBuild::Logger::info() << "nebuild: error: file path is empty" << std::endl;
return false;
} else {
path = argv_val;
if (!FS::exists(path)) {
NeBuild::Logger::info() << "nebuild: error: file '" << path << "' does not exist"
<< std::endl;
return false;
}
}
try {
std::ifstream json(path);
if (!json.good()) {
NeBuild::Logger::info() << "nebuild: error: file '" << path << "' is not a valid JSON"
<< std::endl;
return false;
}
JSON json_obj = JSON::parse(json);
std::string compiler = json_obj["compiler_path"].get<std::string>();
std::string command = compiler + " ";
JSON header_search_path = json_obj["compiler_headers_path"];
for (auto& headers : header_search_path) {
command += "-I" + headers.get<std::string>() + " ";
}
JSON headers_path = json_obj["headers_path"];
for (auto& headers : headers_path) {
command += "-I" + headers.get<std::string>() + " ";
}
JSON sources_files = json_obj["sources_path"];
for (auto& sources : sources_files) {
command += sources.get<std::string>() + " ";
}
JSON macros_list = json_obj["cpp_macros"];
for (auto& macro : macros_list) {
command += "-D" + macro.get<std::string>() + " ";
}
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";
NeBuild::Logger::info() << "command: " << command << "\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;
return false;
}
} catch (std::runtime_error& err) {
NeBuild::Logger::info() << "error: " << err.what() << std::endl;
return false;
}
return true;
}
const char* JSONManifestBuilder::BuildSystem() {
return "NeBuild (JSON)";
}
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