id 1776177215

.clang-tidy

@@ -1,46 +1,148 @@
-# Apply to ALL headers (empty = no restriction)
-HeaderFilterRegex: '.*'
-
-# Treat warnings as errors (optional but recommended for CI)
-# WarningsAsErrors: '*'
-WarningsAsErrors: ''
+---
+# Configure clang-tidy for this project.
 
+# Here is an explanation for why some of the checks are disabled:
+#
+#  -google-readability-namespace-comments: the *_CLIENT_NS is a macro, and
+#      clang-tidy fails to match it against the initial value.
+#
+#  -modernize-use-trailing-return-type: clang-tidy recommends using
+#      `auto Foo() -> std::string { return ...; }`, we think the code is less
+#      readable in this form.
+#
+#  --modernize-concat-nested-namespaces: clang-tidy recommends
+#      `namespace google::cloud {}` over `namespace google { namespace cloud { } }`
+#      We need to support C++14, which does not supported nested namespaces.
+#
+#  --modernize-use-nodiscard: clang-tidy recommends adding a nodiscard annotation
+#      to functions where the return value should not be ignored.
+#      We need to support C++14, which does not supported the annotation.
+#
+#  -modernize-return-braced-init-list: We think removing typenames and using
+#      only braced-init can hurt readability.
+#
+#  -modernize-avoid-c-arrays: We only use C arrays when they seem to be the
+#      right tool for the job, such as `char foo[] = "hello"`. In these cases,
+#      avoiding C arrays often makes the code less readable, and std::array is
+#      not a drop-in replacement because it doesn't deduce the size.
+#
+#  -modernize-type-traits: clang-tidy recommands using c++17 style variable
+#      templates. We will enable this check after we moved to c++17.
+#
+#  -modernize-unary-static-assert: clang-tidy asks removing empty string in
+#      static_assert(), the check is only applicable for c++17 and later code.
+#      We will enable this check after we moved to c++17.
+#
+#  -performance-move-const-arg: This warning requires the developer to
+#      know/care more about the implementation details of types/functions than
+#      should be necessary. For example, `A a; F(std::move(a));` will trigger a
+#      warning IFF `A` is a trivial type (and therefore the move is
+#      meaningless). It would also warn if `F` accepts by `const&`, which is
+#      another detail that the caller need not care about.
+#
+#  -performance-avoid-endl: we would like to turn this on, but there are too
+#      many legitimate uses in our samples.
+#
+#  -performance-enum-size: Smaller enums may or not may be faster, it depends on
+#      the architechture. If data size was a consideration, we might decide to
+#      enable the warnings.
+#
+#  -readability-redundant-declaration: A friend declaration inside a class
+#      counts as a declaration, so if we also declare that friend outside the
+#      class in order to document it as part of the public API, that will
+#      trigger a redundant declaration warning from this check.
+#
+#  -readability-avoid-return-with-void-value: We believe this is idiomatic
+#    and saves typing, and the intent is obvious.
+#
+#  -readability-function-cognitive-complexity: too many false positives with
+#      clang-tidy-12. We need to disable this check in macros, and that setting
+#      only appears in clang-tidy-13.
+#
+#  -bugprone-narrowing-conversions: too many false positives around
+#      `std::size_t`  vs. `*::difference_type`.
+#
+#  -bugprone-easily-swappable-parameters: too many false positives.
+#
+#  -bugprone-implicit-widening-of-multiplication-result: too many false positives.
+#     Almost any expression of the form `2 * variable` or `long x = a_int * b_int;`
+#     generates an error.
+#
+#  -bugprone-unchecked-optional-access: too many false positives in tests.
+#     Despite what the documentation says, this warning appears after
+#     `ASSERT_TRUE(variable)` or `ASSERT_TRUE(variable.has_value())`.
+#
+#   TODO(#14162): Enable clang-tidy checks. We initially omitted these checks
+#   because they require large cleanup efforts or were blocking the clang-tidy
+#   X update.
 Checks: >
   -*,
-  clang-diagnostic-*,
-  modernize-*,
-  -modernize-use-trailing-return-type,
-  -modernize-use-auto,
-  cppcoreguidelines-*,
-  -cppcoreguidelines-owning-memory,
-  -cppcoreguidelines-pro-type-vararg,
-  -cppcoreguidelines-avoid-magic-numbers,
+  abseil-*,
   bugprone-*,
+  google-*,
+  misc-*,
+  modernize-*,
   performance-*,
+  portability-*,
   readability-*,
-  -readability-magic-numbers,
+  -bugprone-exception-escape,
+  -google-readability-braces-around-statements,
+  -google-readability-namespace-comments,
+  -google-runtime-references,
+  -misc-non-private-member-variables-in-classes,
+  -misc-const-correctness,
+  -misc-include-cleaner,
+  -modernize-return-braced-init-list,
+  -modernize-use-trailing-return-type,
+  -modernize-concat-nested-namespaces,
+  -modernize-use-nodiscard,
+  -modernize-avoid-c-arrays,
+  -modernize-type-traits,
+  -modernize-unary-static-assert,
+  -performance-move-const-arg,
+  -performance-avoid-endl,
+  -performance-enum-size,
+  -readability-braces-around-statements,
   -readability-identifier-length,
-  misc-*,
-  -misc-unused-parameters
-
-CheckOptions:
-  - key: readability-identifier-naming.NamespaceCase
-    value: lower_case
-
-  - key: readability-identifier-naming.ClassCase
-    value: CamelCase
-
-  - key: readability-identifier-naming.StructCase
-    value: CamelCase
-
-  - key: readability-identifier-naming.FunctionCase
-    value: lower_case
+  -readability-magic-numbers,
+  -readability-named-parameter,
+  -readability-redundant-declaration,
+  -readability-avoid-return-with-void-value,
+  -readability-function-cognitive-complexity,
+  -bugprone-narrowing-conversions,
+  -bugprone-easily-swappable-parameters,
+  -bugprone-inc-dec-in-conditions,
+  -bugprone-implicit-widening-of-multiplication-result,
+  -bugprone-unchecked-optional-access,
+  -bugprone-unused-local-non-trivial-variable,
+  -bugprone-unused-return-value
 
-  - key: readability-identifier-naming.VariableCase
-    value: lower_case
+# Turn all the warnings from the checks above into errors.
+WarningsAsErrors: "*"
 
-  - key: readability-identifier-naming.MemberCase
-    value: lower_case
+HeaderFilterRegex: "(google/cloud/|generator/).*\\.h$"
 
-  - key: modernize-use-nullptr.NullMacros
-    value: 'NULL'
+CheckOptions:
+  - { key: readability-identifier-naming.NamespaceCase,          value: lower_case }
+  - { key: readability-identifier-naming.ClassCase,              value: CamelCase  }
+  - { key: readability-identifier-naming.StructCase,             value: CamelCase  }
+  - { key: readability-identifier-naming.TemplateParameterCase,  value: CamelCase  }
+  - { key: readability-identifier-naming.FunctionCase,           value: aNy_CasE  }
+  - { key: readability-identifier-naming.VariableCase,           value: lower_case }
+  - { key: readability-identifier-naming.ClassMemberCase,        value: lower_case }
+  - { key: readability-identifier-naming.ClassMemberSuffix,      value: _          }
+  - { key: readability-identifier-naming.PrivateMemberSuffix,    value: _          }
+  - { key: readability-identifier-naming.ProtectedMemberSuffix,  value: _          }
+  - { key: readability-identifier-naming.EnumConstantCase,         value: CamelCase }
+  - { key: readability-identifier-naming.EnumConstantPrefix,       value: k         }
+  - { key: readability-identifier-naming.ConstexprVariableCase,    value: CamelCase }
+  - { key: readability-identifier-naming.ConstexprVariablePrefix,  value: k         }
+  - { key: readability-identifier-naming.GlobalConstantCase,       value: CamelCase }
+  - { key: readability-identifier-naming.GlobalConstantPrefix,     value: k         }
+  - { key: readability-identifier-naming.MemberConstantCase,       value: CamelCase }
+  - { key: readability-identifier-naming.MemberConstantPrefix,     value: k         }
+  - { key: readability-identifier-naming.StaticConstantCase,       value: CamelCase }
+  - { key: readability-identifier-naming.StaticConstantPrefix,     value: k         }
+  - { key: readability-implicit-bool-conversion.AllowIntegerConditions,  value: 1   }
+  - { key: readability-implicit-bool-conversion.AllowPointerConditions,  value: 1   }
+  - { key: readability-function-cognitive-complexity.IgnoreMacros,  value: 1   }

CMakeLists.txt

@@ -1,53 +1,29 @@
-#                   ROOT CMAKE
-#                        │
-#      ┌─────────────────┴─────────────────┐
-#      │                                   │
-# src module                         tests module
-#      │                                   │
-# ┌────┴────┐                              │
-# │         │                              │
-# core    socket                           │
-# │         │                              │
-# └──────┬──┘                              │
-#        │                                 │
-#        ▼                                 ▼
-# cpp_lab_project                 cpp_lab_project_unit_test
-# (main executable)               (GoogleTest executable)
-
 cmake_minimum_required(VERSION 3.14)
 
-# ----------------------------------------------------------------------------------------
 # Project metadata
-# ----------------------------------------------------------------------------------------
 project(cpp_lab_project # ${PROJECT_NAME}
     VERSION 1.0.0
     DESCRIPTION "A C/C++ project uses CMake, GoogleTest, gcc, g++, cppcheck, and lcov, integrated with Docker and GitHub Actions for CI/CD."
     LANGUAGES CXX
 )
 
-# ----------------------------------------------------------------------------------------
 # Output directories to build/bin
-# ----------------------------------------------------------------------------------------
 # Executables
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
 # Shared libraries
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 # Static libraries
 set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib)
 
-# ----------------------------------------------------------------------------------------
 # Compiler and language configuration
-# ----------------------------------------------------------------------------------------
 # Require at least C++17 for GoogleTest and modern C++ features
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
 # Export compile_commands.json (useful for clang-tidy, clangd, IDEs)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
-# ----------------------------------------------------------------------------------------
 # Build metadata
-# ----------------------------------------------------------------------------------------
 # Ensure directory exists for generated headers
 file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/generated)
 
@@ -60,24 +36,18 @@ configure_file(
     ${CMAKE_BINARY_DIR}/generated/version.h
 )
 
-# ----------------------------------------------------------------------------------------
 # External dependencies (GoogleTest,...)
-# ----------------------------------------------------------------------------------------
 include(cmake/Dependencies.cmake)
 
-# ----------------------------------------------------------------------------------------
 # Compiler warnings (useful for learning/debugging)
-# ----------------------------------------------------------------------------------------
 add_compile_options(-Wall -Wextra -Wpedantic)
 
 message(STATUS "C Compiler: ${CMAKE_C_COMPILER}")
 message(STATUS "C++ Compiler: ${CMAKE_CXX_COMPILER}")
 message(STATUS "C++ Compiler ID: ${CMAKE_CXX_COMPILER_ID}")
 message(STATUS "C++ Compiler Version: ${CMAKE_CXX_COMPILER_VERSION}")
 
-# ----------------------------------------------------------------------------------------
 # Code coverage configuration
-# ----------------------------------------------------------------------------------------
 option(ENABLE_COVERAGE "Enable coverage reporting" OFF)
 
 if(ENABLE_COVERAGE AND CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
@@ -86,13 +56,9 @@ if(ENABLE_COVERAGE AND CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
     add_link_options(--coverage)
 endif()
 
-# ----------------------------------------------------------------------------------------
 # Enable CTest framework (used by GoogleTest)
-# ----------------------------------------------------------------------------------------
 enable_testing()
 
-# ----------------------------------------------------------------------------------------
 # Add project modules
-# ----------------------------------------------------------------------------------------
 add_subdirectory(src)
 add_subdirectory(tests)

README.md

@@ -47,6 +47,7 @@ Get-ChildItem -Recurse -Include *.cpp, *.h, *.hpp | ForEach-Object { clang-forma
         $ sudo apt-get install cppcheck
         $ sudo apt-get install -y clang-tidy
         $ sudo apt install python3-gcovr
+        $ sudo apt-get install -y libgtkmm-4.0-dev
         ```
     * Build the application and the tests
         ```bash

include/Logger.h

@@ -0,0 +1,61 @@
+#ifndef LOGGER_H_
+#define LOGGER_H_
+
+#include <iostream>
+
+#ifndef NDEBUG
+#include <mutex>
+#include <source_location>
+#include <string_view>
+
+class Logger {
+ public:
+  static Logger& instance() {
+    static Logger logger;  // guaranteed single instance, thread-safe in C++11+
+    return logger;
+  }
+
+  void log(std::string_view msg, std::string_view level = "INFO",
+           std::source_location loc = std::source_location::current()) {
+    std::lock_guard<std::mutex> lock(mutex_);
+
+    // Extract filename only (no full path)
+    std::string_view file = loc.file_name();
+    auto pos = file.find_last_of("/\\");
+    if (pos != std::string_view::npos) {
+      file = file.substr(pos + 1);
+    }
+
+    // Get current time
+    auto now = std::chrono::system_clock::now();
+    auto t = std::chrono::system_clock::to_time_t(now);
+    std::tm tm{};
+    localtime_r(&t, &tm);
+
+    char time_buf[9];
+    std::strftime(time_buf, sizeof(time_buf), "%H:%M:%S", &tm);
+
+    std::cout << "[" << time_buf << "]" << "[" << level << "]" << "[" << file
+              << ":" << loc.line() << "]" << "[" << loc.function_name() << "] "
+              << msg << '\n';
+  }
+
+  // Prevent copies
+  Logger(const Logger&) = delete;
+  Logger& operator=(const Logger&) = delete;
+
+ private:
+  Logger() = default;
+  std::mutex mutex_;
+};
+
+#define LOG(msg) Logger::instance().log(msg)
+
+#else
+
+inline void LOG(const std::string& msg) {
+  std::cout << msg << '\n';
+}
+
+#endif
+#endif

scripts/run.sh

@@ -1,7 +1,3 @@
-## NOTE:
-## This file was initially generated with the assistance of AI.
-## The code has been reviewed and may have been modified by the developer
-## to ensure correctness, readability, and compliance with project requirements.
 #!/usr/bin/env bash
 
 set -e  # Exit immediately if a command fails

src/main.cpp

@@ -4,6 +4,7 @@
 #include <vector>
 
 #include "ExampleRegistry.h"
+#include "Logger.h"
 #include "version.h"
 
 int readChoice() {
@@ -103,6 +104,7 @@ void runMenu() {
 }
 
 int main(int argc, char* argv[]) {
+  LOG("Logger has been integrated");
   std::cout << std::endl;
   if (__cplusplus == 202302L)
     std::cout << "C++23";