chore: codebase modernization and hygiene improvements.

Signed-off-by: Amlal El Mahrouss <amlal@nekernel.org>

19 files changed, 88 insertions, 104 deletions

diff --git a/.clang-format b/.clang-format
index 3943f55..293ba4e 100644
--- a/.clang-format
+++ b/.clang-format
@@ -26,4 +26,4 @@ AlignConsecutiveDeclarations: true
 AlignTrailingComments: true
 FixNamespaceComments: true
 IncludeIsMainRegex: '(Test)?$'
-SortUsingDeclarations: true
+SortUsingDeclarations: true
\ No newline at end of file
diff --git a/examples/example_02_libnebuild/libnebuild.cc b/examples/example_02_libnebuild/libnebuild.cc
index e707f6c..fffb962 100644
--- a/examples/example_02_libnebuild/libnebuild.cc
+++ b/examples/example_02_libnebuild/libnebuild.cc
@@ -2,15 +2,15 @@
 
 int main(int argc, char** argv) {
 #ifndef _WIN32
-  constexpr auto kPath = "./posix.json";
+  constexpr auto path = "./posix.json";
 #else
-  constexpr auto kPath = ".\\win64.json";
+  constexpr auto path = ".\\win64.json";
 #endif
 
   NeBuild::JSONManifestBuilder builder;
   NeBuild::BuildConfig         config;
 
-  config.path_    = kPath;
+  config.path_    = path;
   config.dry_run_ = false;
 
   return builder.BuildTarget(config);
diff --git a/include/.keep b/include/.keep
deleted file mode 100644
index e69de29..0000000
--- a/include/.keep
+++ /dev/null
diff --git a/include/NeBuildKit/Detail/Config.h b/include/NeBuildKit/Detail/Config.h
index 915bde4..ddf93c1 100644
--- a/include/NeBuildKit/Detail/Config.h
+++ b/include/NeBuildKit/Detail/Config.h
@@ -16,32 +16,30 @@
 #define LIKELY(ARG) ((ARG) ? assert(false) : ((void) 0))
 #define UNLIKELY(ARG) LIKELY(!(ARG))
 
-#define LIBNEBUILD_VERSION "v0.0.7-buildkit"
+#define NEBUILD_VERSION "v0.0.8-buildkit"
 
-#define LIBNEBUILD_VERSION_BCD 0x0007
+#define NEBUILD_VERSION_BCD 0x0007
 
-#define LIBNEBUILD_VERSION_MAJOR 0
-#define LIBNEBUILD_VERSION_MINOR 0
-#define LIBNEBUILD_VERSION_PATCH 7
+#define NEBUILD_VERSION_MAJOR 0
+#define NEBUILD_VERSION_MINOR 0
+#define NEBUILD_VERSION_PATCH 7
 
-#define LIBNEBUILD_EXPORT_C extern "C"
+#define NEBUILD_EXPORT_C extern "C"
 
-#define LIBNEBUILD_UNUSED(X) ((void) X)
+#define NEBUILD_UNUSED(X) ((void) X)
 
 namespace NeBuild {
-  struct BuildConfig final {
-    bool has_failed_{false};
-    bool dry_run_{false};
-    std::string path_{};
-
-    explicit operator bool() {
-      return has_failed_;
-    }
-
-    BuildConfig() = default;
-    ~BuildConfig() {}
-  };
-}
+struct BuildConfig final {
+  bool        has_failed_{false};
+  bool        dry_run_{false};
+  std::string path_{};
+
+  explicit operator bool() { return has_failed_; }
+
+  BuildConfig() = default;
+  ~BuildConfig() = default;
+};
+}  // namespace NeBuild
 
 namespace NeBuild::Logger {
 /// @brief replacement for std::cout for NeBuild logging.
@@ -51,5 +49,3 @@ inline std::ostream& info() noexcept {
   return out;
 }
 }  // namespace NeBuild::Logger
-
-
diff --git a/include/NeBuildKit/IManifestBuilder.h b/include/NeBuildKit/IManifestBuilder.h
index 8131495..c42f257 100644
--- a/include/NeBuildKit/IManifestBuilder.h
+++ b/include/NeBuildKit/IManifestBuilder.h
@@ -6,6 +6,7 @@
 #pragma once
 
 #include <NeBuildKit/Detail/Config.h>
+#include <string_view>
 
 #define NEBUILD_MANIFEST_BUILDER : public ::NeBuild::IManifestBuilder
 
@@ -19,8 +20,8 @@ class IManifestBuilder {
   IManifestBuilder()          = default;
   virtual ~IManifestBuilder() = default;
 
-  IManifestBuilder& operator=(const IManifestBuilder&) = default;
-  IManifestBuilder(const IManifestBuilder&)            = default;
+  IManifestBuilder& operator=(const IManifestBuilder&) = delete;
+  IManifestBuilder(const IManifestBuilder&)            = delete;
 
   /// =========================================================== ///
   /// @brief Builds a TOML target from a file.
@@ -33,6 +34,6 @@ class IManifestBuilder {
   /// =========================================================== ///
   /// @brief Returns the build system name.
   /// =========================================================== ///
-  virtual const char* BuildSystem() = 0;
+  virtual const std::string_view BuildSystem() = 0;
 };
 }  // namespace NeBuild
\ No newline at end of file
diff --git a/include/NeBuildKit/JSONManifestBuilder.h b/include/NeBuildKit/JSONManifestBuilder.h
index 21f5f87..9f1afdc 100644
--- a/include/NeBuildKit/JSONManifestBuilder.h
+++ b/include/NeBuildKit/JSONManifestBuilder.h
@@ -17,9 +17,6 @@ class JSONManifestBuilder final NEBUILD_MANIFEST_BUILDER {
   JSONManifestBuilder()           = default;
   ~JSONManifestBuilder() override = default;
 
-  JSONManifestBuilder& operator=(const JSONManifestBuilder&) = default;
-  JSONManifestBuilder(const JSONManifestBuilder&)            = default;
-
  public:
   /// =========================================================== ///
   /// @brief Builds a JSON target from a JSON file.
@@ -32,6 +29,6 @@ class JSONManifestBuilder final NEBUILD_MANIFEST_BUILDER {
   /// =========================================================== ///
   /// @brief Returns the build system name.
   /// =========================================================== ///
-  const char* BuildSystem() override;
+  const std::string_view BuildSystem() override;
 };
 }  // namespace NeBuild
\ No newline at end of file
diff --git a/include/NeBuildKit/TOMLManifestBuilder.h b/include/NeBuildKit/TOMLManifestBuilder.h
index 7caf9d6..1c6bb1b 100644
--- a/include/NeBuildKit/TOMLManifestBuilder.h
+++ b/include/NeBuildKit/TOMLManifestBuilder.h
@@ -17,9 +17,6 @@ class TOMLManifestBuilder final NEBUILD_MANIFEST_BUILDER {
   TOMLManifestBuilder()           = default;
   ~TOMLManifestBuilder() override = default;
 
-  TOMLManifestBuilder& operator=(const TOMLManifestBuilder&) = default;
-  TOMLManifestBuilder(const TOMLManifestBuilder&)            = default;
-
  public:
   /// =========================================================== ///
   /// @brief Builds a TOML target from a TOML file.
@@ -32,6 +29,6 @@ class TOMLManifestBuilder final NEBUILD_MANIFEST_BUILDER {
   /// =========================================================== ///
   /// @brief Returns the build system name.
   /// =========================================================== ///
-  const char* BuildSystem() override;
+  const std::string_view BuildSystem() override;
 };
 }  // namespace NeBuild
\ No newline at end of file
diff --git a/targets/osx-dylib.json b/scripts/osx-dylib.json
index d5b87bc..d5b87bc 100644
--- a/targets/osx-dylib.json
+++ b/scripts/osx-dylib.json
diff --git a/targets/osx.json b/scripts/osx.json
index bdcab49..bdcab49 100644
--- a/targets/osx.json
+++ b/scripts/osx.json
diff --git a/targets/posix-dylib.json b/scripts/posix-dylib.json
index 3326b3e..3326b3e 100644
--- a/targets/posix-dylib.json
+++ b/scripts/posix-dylib.json
diff --git a/targets/posix.json b/scripts/posix.json
index 679296c..679296c 100644
--- a/targets/posix.json
+++ b/scripts/posix.json
diff --git a/targets/win64.json b/scripts/win64.json
index 75c025a..75c025a 100644
--- a/targets/win64.json
+++ b/scripts/win64.json
diff --git a/src/cli/main.cc b/src/cli/main.cc
index e3a17a0..e79cc6e 100644
--- a/src/cli/main.cc
+++ b/src/cli/main.cc
@@ -6,24 +6,24 @@
 
 #include <NeBuildKit/JSONManifestBuilder.h>
 #include <NeBuildKit/TOMLManifestBuilder.h>
+#include <memory>
 #include <thread>
 
-static NeBuild::BuildConfig kConfig;
-
 int main(int argc, char** argv) {
   if (argc <= 1) return EXIT_FAILURE;
 
+  NeBuild::BuildConfig config;
+
   for (size_t index = 1; index < argc; ++index) {
     std::string index_path = argv[index];
 
     if (index_path == "-v" || index_path == "-version") {
-      NeBuild::Logger::info() << "NeBuild (" << LIBNEBUILD_VERSION << ")\n";
-      NeBuild::Logger::info()
-          << "Bugs, issues? https://github.com/nekernel-org/nebuild/issues\n";
+      NeBuild::Logger::info() << "NeBuild (" << NEBUILD_VERSION << ")\n";
+      NeBuild::Logger::info() << "Bugs or issues? https://github.com/nekernel-org/nebuild/issues\n";
 
       return EXIT_SUCCESS;
     } else if (index_path == "-dry-run" || index_path == "-n") {
-      kConfig.dry_run_ = true;
+      config.dry_run_ = true;
       continue;
     } else if (index_path == "-h" || index_path == "-help") {
       NeBuild::Logger::info() << "usage: nebuild <options> <file>.\n";
@@ -33,58 +33,50 @@ int main(int argc, char** argv) {
 
     auto index_cpy = index;
 
-    std::thread job_build_thread(
-        [&index_path, &index, &index_cpy, &argv]() -> void {
-          NeBuild::IManifestBuilder* builder = nullptr;
+    std::thread job_build_thread([&index_path, &index, &index_cpy, &argc, &argv, &config]() -> void {
+      std::unique_ptr<NeBuild::IManifestBuilder> builder;
 
-          const auto kJsonExtension = ".json";
+      const auto kJsonExtension = ".json";
 
-          if (index_path.ends_with(kJsonExtension)) {
-            builder = new NeBuild::JSONManifestBuilder();
+      if (index_path.ends_with(kJsonExtension)) {
+        builder = std::make_unique<NeBuild::JSONManifestBuilder>();
 
-            if (!builder) {
-              kConfig.has_failed_ = true;
-              return;
-            }
-          } else {
-            const auto kTomlExtension = ".toml";
-            builder                   = new NeBuild::TOMLManifestBuilder();
+        if (!builder) {
+          config.has_failed_ = true;
+          return;
+        }
+      } else {
+        const auto kTomlExtension = ".toml";
+        builder = std::make_unique<NeBuild::TOMLManifestBuilder>();
 
-            if (index_path.ends_with(kTomlExtension)) {
-              goto nebuild_build_target;
-            } else {
-              NeBuild::Logger::info()
-                  << "error: file '" << index_path << "' is not a manifest file!" << std::endl;
-              kConfig.has_failed_ = true;
-              return;
-            }
-          }
+        if (!index_path.ends_with(kTomlExtension)) {
+          NeBuild::Logger::info() << "error: file '" << index_path << "' is not a manifest file!"
+                                  << std::endl;
+          config.has_failed_ = true;
+          return;
+        }
+      }
 
-        nebuild_build_target:
-          std::string next_path;
+      std::string next_path;
 
-          if (argv[index_cpy + 1]) next_path = argv[index_cpy + 1];
+      if ((index_cpy + 1) < argc && argv[index_cpy + 1]) next_path = argv[index_cpy + 1];
 
-          if (next_path == "-build-system") {
-            NeBuild::Logger::info() << builder->BuildSystem() << std::endl;
-            std::exit(EXIT_SUCCESS);
-          }
+      if (next_path == "-build-system") {
+        NeBuild::Logger::info() << builder->BuildSystem() << std::endl;
+        std::exit(EXIT_SUCCESS);
+      }
 
-          NeBuild::Logger::info() << "building manifest: " << index_path << std::endl;
+      NeBuild::Logger::info() << "building manifest: " << index_path << std::endl;
 
-          kConfig.path_ = index_path;
-          
-          if (builder && !builder->BuildTarget(kConfig)) {
-            kConfig.has_failed_ = true;
-          }
+      config.path_ = index_path;
 
-        toml_build_done:
-          delete builder;
-          builder = nullptr;
-        });
+      if (builder && !builder->BuildTarget(config)) {
+        config.has_failed_ = true;
+      }
+    });
 
     job_build_thread.join();
   }
 
-  return !kConfig ? EXIT_FAILURE : EXIT_SUCCESS;
+  return !config ? EXIT_FAILURE : EXIT_SUCCESS;
 }
diff --git a/src/lib/JSONManifestBuilder.cc b/src/lib/JSONManifestBuilder.cc
index c6ff4d8..af69176 100644
--- a/src/lib/JSONManifestBuilder.cc
+++ b/src/lib/JSONManifestBuilder.cc
@@ -7,10 +7,8 @@
 #include <json/json.h>
 #include <fstream>
 
-using namespace NeBuild;
-using namespace nlohmann;
-
-using JSON   = json;
+namespace NeBuild {
+using JSON   = nlohmann::json;
 namespace FS = std::filesystem;
 
 /// =========================================================== ///
@@ -95,10 +93,12 @@ bool JSONManifestBuilder::BuildTarget(BuildConfig& config) {
     if (ret_exec > 0) {
       NeBuild::Logger::info() << "error: exit with message: " << std::strerror(ret_exec) << ""
                               << std::endl;
+      config.has_failed_ = true;
       return false;
     }
   } catch (std::runtime_error& err) {
     NeBuild::Logger::info() << "error: exit with message: " << err.what() << "" << std::endl;
+    config.has_failed_ = true;
     return false;
   }
 
@@ -108,6 +108,7 @@ bool JSONManifestBuilder::BuildTarget(BuildConfig& config) {
 /// =========================================================== ///
 /// @brief Returns the build system name.
 /// =========================================================== ///
-const char* JSONManifestBuilder::BuildSystem() {
+const std::string_view JSONManifestBuilder::BuildSystem() {
   return "NeBuild (JSON)";
 }
+}  // namespace NeBuild
\ No newline at end of file
diff --git a/src/lib/TOMLManifestBuilder.cc b/src/lib/TOMLManifestBuilder.cc
index a58b280..5b759fc 100644
--- a/src/lib/TOMLManifestBuilder.cc
+++ b/src/lib/TOMLManifestBuilder.cc
@@ -4,11 +4,10 @@
 // ============================================================= //
 
 #include <NeBuildKit/TOMLManifestBuilder.h>
-#include <toml++/toml.hpp>
 #include <filesystem>
+#include <toml++/toml.hpp>
 
-using namespace NeBuild;
-
+namespace NeBuild {
 namespace FS = std::filesystem;
 
 /// =========================================================== ///
@@ -98,10 +97,12 @@ bool TOMLManifestBuilder::BuildTarget(BuildConfig& config) {
     if (ret_exec > 0) {
       NeBuild::Logger::info() << "error: exit with message: " << std::strerror(ret_exec) << ""
                               << std::endl;
+      config.has_failed_ = true;
       return false;
     }
   } catch (std::runtime_error& err) {
     NeBuild::Logger::info() << "error: exit with message: " << err.what() << "" << std::endl;
+    config.has_failed_ = true;
     return false;
   }
 
@@ -111,6 +112,7 @@ bool TOMLManifestBuilder::BuildTarget(BuildConfig& config) {
 /// =========================================================== ///
 /// @brief Returns the build system name.
 /// =========================================================== ///
-const char* TOMLManifestBuilder::BuildSystem() {
+const std::string_view TOMLManifestBuilder::BuildSystem() {
   return "NeBuild (TOML)";
 }
+}  // namespace NeBuild
\ No newline at end of file
diff --git a/vendor/.keep b/vendor/.keep
deleted file mode 100644
index e69de29..0000000
--- a/vendor/.keep
+++ /dev/null
diff --git a/vendor/toml++/impl/array.inl b/vendor/toml++/impl/array.inl
index 7ae8ee1..194a21f 100644
--- a/vendor/toml++/impl/array.inl
+++ b/vendor/toml++/impl/array.inl
@@ -207,7 +207,7 @@ TOML_NAMESPACE_START {
   }
 
   TOML_EXTERNAL_LINKAGE
-  void array::flatten_child(array && child, size_t & dest_index) noexcept {
+  void array::flatten_child(array && child, size_t& dest_index) noexcept {
     for (size_t i = 0, e = child.size(); i < e; i++) {
       auto type = child.elems_[i]->type();
       if (type == node_type::array) {
@@ -219,7 +219,7 @@ TOML_NAMESPACE_START {
   }
 
   TOML_EXTERNAL_LINKAGE
-  array& array::flatten()& {
+  array& array::flatten() & {
     if (elems_.empty()) return *this;
 
     bool   requires_flattening   = false;
@@ -258,7 +258,7 @@ TOML_NAMESPACE_START {
   }
 
   TOML_EXTERNAL_LINKAGE
-  array& array::prune(bool recursive)& noexcept {
+  array& array::prune(bool recursive) & noexcept {
     if (elems_.empty()) return *this;
 
     for (size_t i = elems_.size(); i-- > 0u;) {
diff --git a/vendor/toml++/impl/parser.inl b/vendor/toml++/impl/parser.inl
index 1530e5a..0ebc31e 100644
--- a/vendor/toml++/impl/parser.inl
+++ b/vendor/toml++/impl/parser.inl
@@ -391,11 +391,11 @@ TOML_ANON_NAMESPACE_START {
   };
 
   template <typename Char>
-  utf8_reader(std::basic_string_view<Char>,
-              std::string_view) -> utf8_reader<std::basic_string_view<Char>>;
+  utf8_reader(std::basic_string_view<Char>, std::string_view)
+      -> utf8_reader<std::basic_string_view<Char>>;
   template <typename Char>
-  utf8_reader(std::basic_string_view<Char>,
-              std::string&&) -> utf8_reader<std::basic_string_view<Char>>;
+  utf8_reader(std::basic_string_view<Char>, std::string&&)
+      -> utf8_reader<std::basic_string_view<Char>>;
   template <typename Char>
   utf8_reader(std::basic_istream<Char>&, std::string_view) -> utf8_reader<std::basic_istream<Char>>;
   template <typename Char>
@@ -3369,10 +3369,8 @@ TOML_ANON_NAMESPACE_START {
   TOML_INTERNAL_LINKAGE
   parse_result do_parse_file(std::string_view file_path) {
 #if TOML_EXCEPTIONS
-#define TOML_PARSE_FILE_ERROR(msg, path)                                         \
-  throw parse_error {                                                            \
-    msg, source_position{}, std::make_shared<const std::string>(std::move(path)) \
-  }
+#define TOML_PARSE_FILE_ERROR(msg, path) \
+  throw parse_error{msg, source_position{}, std::make_shared<const std::string>(std::move(path))}
 #else
 #define TOML_PARSE_FILE_ERROR(msg, path)                                           \
   return parse_result {                                                            \
diff --git a/vendor/toml++/impl/table.inl b/vendor/toml++/impl/table.inl
index ca7473e..ba76963 100644
--- a/vendor/toml++/impl/table.inl
+++ b/vendor/toml++/impl/table.inl
@@ -198,7 +198,7 @@ TOML_NAMESPACE_START {
   }
 
   TOML_EXTERNAL_LINKAGE
-  table& table::prune(bool recursive)& noexcept {
+  table& table::prune(bool recursive) & noexcept {
     if (map_.empty()) return *this;
 
     for (auto it = map_.begin(); it != map_.end();) {