chore: setup Builder

.gitignore

@@ -0,0 +1,4 @@
+.build/
+.cache/
+bin/
+compile_commands.json

.nix/flake.nix

@@ -17,7 +17,15 @@
             cmake
             ninja
             sccache
+
+            # pre-commit
+            pre-commit
+            commitizen
           ];
+
+          shellHook = ''
+            pre-commit install --allow-missing-config --hook-type pre-commit --hook-type commit-msg
+          '';
         };
       }
     );

.pre-commit-config.yaml

@@ -0,0 +1,29 @@
+repos:
+  - repo: https://github.com/commitizen-tools/commitizen
+    rev: v3.15.0
+    hooks:
+      - id: commitizen
+        stages: [commit-msg]
+
+  - repo: https://github.com/pre-commit/mirrors-prettier
+    rev: v4.0.0-alpha.8
+    hooks:
+      - id: prettier
+        name: check markdown/yaml formatting
+        types_or:
+          - markdown
+          - yaml
+        args: [--no-config]
+        exclude: CHANGELOG.md
+
+  - repo: https://github.com/pocc/pre-commit-hooks
+    rev: v1.3.5
+    hooks:
+      - id: clang-format
+      - id: clang-tidy
+
+  - repo: https://github.com/cheshirekow/cmake-format-precommit
+    rev: v0.6.13
+    hooks:
+      - id: cmake-format
+      - id: cmake-lint

Builder/CMakeLists.txt

@@ -0,0 +1,21 @@
+cmake_minimum_required(VERSION 3.20)
+
+project(
+  Builder
+  VERSION 0.1.0
+  LANGUAGES CXX)
+
+list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/../cmake")
+
+include(ExportCompileCommands)
+include(sccache)
+
+add_executable(Builder main.cpp)
+
+target_compile_features(Builder PUBLIC cxx_std_20)
+
+set_target_properties(
+  Builder
+  PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin"
+             RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin"
+             RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin")

Builder/bootstrap.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+
+cmake -S . -B .build -G Ninja -D CMAKE_EXPORT_COMPILE_COMMANDS=ON
+ln -s .build/compile_commands.json

Builder/build.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh 
+
+cmake --build .build 

Builder/main.cpp

@@ -0,0 +1,8 @@
+#include <iostream>
+
+int main(int argc, char *argv[]) {
+
+  std::cout << "Builder" << std::endl;
+
+  return EXIT_SUCCESS;
+}

Singleton/CMakeLists.txt

@@ -0,0 +1,21 @@
+cmake_minimum_required(VERSION 3.20)
+
+project(
+  Singleton
+  VERSION 0.1.0
+  LANGUAGES CXX)
+
+list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/../cmake")
+
+include(ExportCompileCommands)
+include(sccache)
+
+add_executable(Singleton main.cpp)
+
+target_compile_features(Singleton PUBLIC cxx_std_20)
+
+set_target_properties(
+  Singleton
+  PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin"
+             RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin"
+             RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin")

Singleton/bootstrap.sh

@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+
+cmake -S . -B .build -G Ninja -D CMAKE_EXPORT_COMPILE_COMMANDS=ON
+ln -s .build/compile_commands.json

Singleton/build.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/env sh 
+
+cmake --build .build 

Singleton/main.cpp

@@ -0,0 +1,42 @@
+#include <cstdlib>
+#include <iomanip>
+#include <iostream>
+#include <mutex>
+
+class Singleton {
+private:
+  static Singleton *singleton;
+  static std::mutex mutex;
+
+  Singleton() = default;
+
+public:
+  Singleton(const Singleton &other) = delete;
+  Singleton &operator=(const Singleton &) = delete;
+
+  static Singleton *GetInstance() {
+    std::lock_guard<std::mutex> lock(mutex);
+
+    if (singleton == nullptr) {
+      singleton = new Singleton();
+    }
+
+    return singleton;
+  }
+};
+
+Singleton *Singleton::singleton = nullptr;
+std::mutex Singleton::mutex;
+
+int main(int argc, char *argv[]) {
+
+  std::cout << "Singleton" << std::endl;
+
+  auto singleton1 = Singleton::GetInstance();
+  auto singleton2 = Singleton::GetInstance();
+
+  std::cout << std::setw(20) << "Singleton 1: " << singleton1 << std::endl;
+  std::cout << std::setw(20) << "Singleton 2: " << singleton2 << std::endl;
+
+  return EXIT_SUCCESS;
+}