Style audit: update code to strictly follow Google Style Guide

pipeline/.clang-tidy

@@ -1,17 +1,37 @@
----
 Checks: >
   -*,
   bugprone-*,
-  clang-analyzer-*,
-  cppcoreguidelines-*,
   google-*,
   modernize-*,
-  performance-*,
   readability-*,
-  -cppcoreguidelines-avoid-magic-numbers,
+  cppcoreguidelines-*,
-  -cppcoreguidelines-owning-memory,
+  -modernize-use-trailing-return-type,
-  -readability-magic-numbers,
+  -google-runtime-references
-  -google-readability-todo
+
-HeaderFilterRegex: "^(src|includes)/.*"
+CheckOptions:
-FormatStyle: file
+  # Enforce Google Naming Conventions
-...
+  - key: readability-identifier-naming.ClassMemberCase
+    value: snake_case
+  - key: readability-identifier-naming.ClassMemberSuffix
+    value: _
+  - key: readability-identifier-naming.ClassCase
+    value: PascalCase
+  - key: readability-identifier-naming.FunctionCase
+    value: PascalCase
+  - key: readability-identifier-naming.StructCase
+    value: PascalCase
+  - key: readability-identifier-naming.VariableCase
+    value: snake_case
+  - key: readability-identifier-naming.GlobalConstantCase
+    value: kPascalCase
+
+  # Ensure C++20 Modernization
+  - key: modernize-make-unique.MakeSmartPtrFunction
+    value: std::make_unique
+  - key: modernize-make-shared.MakeSmartPtrFunction
+    value: std::make_shared
+  - key: modernize-use-override.IgnoreDestructors
+    value: "false"
+
+# Warnings as Errors to ensure compliance during build
+WarningsAsErrors: "*"

pipeline/CMakeLists.txt

@@ -4,78 +4,76 @@ project(biergarten-pipeline)
 # Boost.DI still declares a very old minimum CMake version, which newer CMake
 # releases reject unless a policy version floor is provided.
 set(CMAKE_POLICY_VERSION_MINIMUM 3.5 CACHE STRING "" FORCE)
+
 # =============================================================================
-# 1. GPU Detection
+# 1. Platform & GPU Detection (Windows explicitly NOT supported)
-# =============================================================================
-# GGML_CUDA / GGML_METAL are set here so that the llama.cpp FetchContent below
-# inherits them as cache variables before its CMakeLists.txt is processed.
-# =============================================================================
-# 1. Platform & GPU Detection
 # =============================================================================
+if(WIN32)
+    message(FATAL_ERROR "[biergarten] Windows is currently not supported. Please use Linux (Fedora 43) or macOS (M1 Pro).")
+endif()
 
 if(APPLE)
-    # Check if this is an M-series Mac (arm64) or Intel Mac (x86_64)
     if(CMAKE_SYSTEM_PROCESSOR MATCHES "arm64")
         message(STATUS "[biergarten] Apple Silicon detected — enabling Metal acceleration.")
         set(GGML_METAL ON CACHE BOOL "Enable Metal for Apple Silicon" FORCE)
     else()
         message(STATUS "[biergarten] Intel Mac detected — using CPU / Accelerate framework.")
-        # Explicitly turn off Metal so the build doesn't fail on x86_64
         set(GGML_METAL OFF CACHE BOOL "Disable Metal for Intel Macs" FORCE)
-        # Note: llama.cpp will automatically detect and enable Apple's Accelerate framework here
     endif()
-
 elseif(UNIX AND NOT APPLE)
-    # Search for NVIDIA CUDA Toolkit
     find_package(CUDAToolkit QUIET)
-
-    # Search for AMD HIP/ROCm Toolkit
     find_package(HIP QUIET)
 
     if(CUDAToolkit_FOUND)
         message(STATUS "[biergarten] NVIDIA GPU detected — enabling CUDA acceleration.")
         set(GGML_CUDA ON CACHE BOOL "Enable CUDA for NVIDIA GPUs" FORCE)
         set(CMAKE_CUDA_ARCHITECTURES native)
-
     elseif(HIP_FOUND OR EXISTS "/opt/rocm")
         message(STATUS "[biergarten] AMD GPU detected — enabling HIP/ROCm acceleration.")
         set(GGML_HIPBLAS ON CACHE BOOL "Enable HIP for AMD GPUs" FORCE)
-
     else()
         message(STATUS "[biergarten] No NVIDIA or AMD GPU found — falling back to CPU.")
     endif()
-
-else()
-    message(FATAL_ERROR "[biergarten] Unrecognized platform. Windows is currently not supported.")
 endif()
 
 # =============================================================================
-# 2. Project-wide Settings
+# 2. Project-wide Settings (Standard & Optimization)
 # =============================================================================
-set(CMAKE_CXX_STANDARD 23)
+
+# Downgrade to C++20 as per Google Style Guide
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+
+# GCC/Clang specific settings (warnings as errors)
+add_compile_options(-Wall -Wextra -Werror -Wpedantic)
+
+# Release Build Optimization: Aggressive (-O3), Arch-specific, and LTO
+set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O3 -march=native -flto")
+
+# Debug Build Optimization: Fast and debuggable (-Og)
+set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -Og -g")
+
 # =============================================================================
 # 3. Dependencies
 # =============================================================================
 include(FetchContent)
-# --- libcurl ------------------------------------------------------------------
+
-# Prefer the system package; the build will fail at link time if absent and
-# no system curl is found, so emit a fatal error early rather than a silent gap.
 find_package(CURL QUIET)
 if(NOT CURL_FOUND)
-    message(FATAL_ERROR
+    message(FATAL_ERROR "[biergarten] libcurl not found. Install it (e.g. 'sudo dnf install libcurl-devel').")
-        "[biergarten] libcurl not found. Install it via your package manager "
-        "(e.g. 'sudo dnf install libcurl-devel') or set CURL_ROOT.")
 endif()
-# --- llama.cpp ----------------------------------------------------------------
+
+# Require system Boost for JSON and Program Options to speed up build times
+find_package(Boost REQUIRED COMPONENTS json program_options)
+
 FetchContent_Declare(
     llama-cpp
     GIT_REPOSITORY https://github.com/ggml-org/llama.cpp.git
     GIT_TAG        b8739
 )
 FetchContent_MakeAvailable(llama-cpp)
-# --- boost-ext/di -------------------------------------------------------------
+
 FetchContent_Declare(
     boost-di
     GIT_REPOSITORY https://github.com/boost-ext/di.git
@@ -85,42 +83,33 @@ FetchContent_MakeAvailable(boost-di)
 if(TARGET Boost.DI AND NOT TARGET boost::di)
     add_library(boost::di ALIAS Boost.DI)
 endif()
-# --- Boost (JSON + program_options) ------------------------------------------
+
-FetchContent_Declare(
-    boost
-    URL https://github.com/boostorg/boost/releases/download/boost-1.85.0/boost-1.85.0-cmake.tar.gz
-)
-FetchContent_MakeAvailable(boost)
-# --- spdlog -------------------------------------------------------------------
 FetchContent_Declare(
     spdlog
     GIT_REPOSITORY https://github.com/gabime/spdlog.git
     GIT_TAG        v1.15.3
 )
 FetchContent_MakeAvailable(spdlog)
+
 # =============================================================================
 # 4. Sources
 # =============================================================================
 set(SOURCES
     src/main.cpp
-    # BiergartenDataGenerator methods
     src/biergarten_data_generator/biergarten_data_generator.cpp
     src/biergarten_data_generator/run.cpp
     src/biergarten_data_generator/query_cities_with_countries.cpp
     src/biergarten_data_generator/generate_breweries.cpp
     src/biergarten_data_generator/log_results.cpp
-    # WikipediaService methods
     src/services/wikipedia/wikipedia_service.cpp
     src/services/wikipedia/get_summary.cpp
     src/services/wikipedia/fetch_extract.cpp
-    # CURLWebClient and CurlGlobalState methods
     src/web_client/curl_global_state.cpp
     src/web_client/curl_web_client.cpp
     src/web_client/curl_web_client_download_to_file.cpp
     src/web_client/curl_web_client_get.cpp
     src/web_client/curl_web_client_utils.cpp
     src/web_client/curl_web_client_url_encode.cpp
-    # Data generation modules
     src/data_generation/llama/llama_generator.cpp
     src/data_generation/llama/generate_brewery.cpp
     src/data_generation/llama/generate_user.cpp
@@ -134,12 +123,11 @@ set(SOURCES
     src/data_generation/mock/generate_user.cpp
     src/json_handling/json_loader.cpp
 )
+
 # =============================================================================
 # 5. Target
 # =============================================================================
-add_executable(${PROJECT_NAME}
+add_executable(${PROJECT_NAME} ${SOURCES})
-    ${SOURCES}
-)
 target_include_directories(${PROJECT_NAME} PRIVATE
     includes
     ${llama-cpp_SOURCE_DIR}/include
@@ -148,8 +136,8 @@ target_include_directories(${PROJECT_NAME} PRIVATE
 target_link_libraries(${PROJECT_NAME} PRIVATE
     llama
     boost::di
-    boost_json
+    Boost::json
-    boost_program_options
+    Boost::program_options
     spdlog::spdlog
     CURL::libcurl
 )
@@ -157,8 +145,6 @@ target_link_libraries(${PROJECT_NAME} PRIVATE
 # =============================================================================
 # 6. Runtime Assets
 # =============================================================================
-# Make locations.json available in the build directory for runtime relative path
-# lookups (e.g. when running from ./build).
 configure_file(
     ${CMAKE_SOURCE_DIR}/locations.json
     ${CMAKE_BINARY_DIR}/locations.json

pipeline/includes/biergarten_data_generator.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_BIERGARTEN_DATA_GENERATOR_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_BIERGARTEN_DATA_GENERATOR_H_
-#define BIERGARTEN_PIPELINE_BIERGARTEN_DATA_GENERATOR_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_BIERGARTEN_DATA_GENERATOR_H_
 
 /**
  * @file biergarten_data_generator.h
@@ -117,6 +117,6 @@ class BiergartenDataGenerator {
    };
 
    /// @brief Stores generated brewery data.
-   std::vector<GeneratedBrewery> generatedBreweries_;
+   std::vector<GeneratedBrewery> generated_breweries_;
 };
-#endif  // BIERGARTEN_PIPELINE_BIERGARTEN_DATA_GENERATOR_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_BIERGARTEN_DATA_GENERATOR_H_

pipeline/includes/data_generation/data_generator.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_DATA_GENERATION_DATA_GENERATOR_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_DATA_GENERATOR_H_
-#define BIERGARTEN_PIPELINE_DATA_GENERATION_DATA_GENERATOR_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_DATA_GENERATOR_H_
 
 /**
  * @file data_generation/data_generator.h
@@ -69,4 +69,4 @@ class DataGenerator {
    virtual UserResult GenerateUser(const std::string& locale) = 0;
 };
 
-#endif  // BIERGARTEN_PIPELINE_DATA_GENERATION_DATA_GENERATOR_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_DATA_GENERATOR_H_

pipeline/includes/data_generation/llama_generator.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_DATA_GENERATION_LLAMA_GENERATOR_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_LLAMA_GENERATOR_H_
-#define BIERGARTEN_PIPELINE_DATA_GENERATION_LLAMA_GENERATOR_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_LLAMA_GENERATOR_H_
 
 /**
  * @file data_generation/llama_generator.h
@@ -120,4 +120,4 @@ class LlamaGenerator final : public DataGenerator {
    std::string brewery_system_prompt_;
 };
 
-#endif  // BIERGARTEN_PIPELINE_DATA_GENERATION_LLAMA_GENERATOR_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_LLAMA_GENERATOR_H_

pipeline/includes/data_generation/llama_generator_helpers.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_DATA_GENERATION_LLAMA_GENERATOR_HELPERS_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_LLAMA_GENERATOR_HELPERS_H_
-#define BIERGARTEN_PIPELINE_DATA_GENERATION_LLAMA_GENERATOR_HELPERS_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_LLAMA_GENERATOR_HELPERS_H_
 
 /**
  * @file data_generation/llama_generator_helpers.h
@@ -85,4 +85,4 @@ std::string ValidateBreweryJsonPublic(const std::string& raw,
  */
 std::string ExtractLastJsonObjectPublic(const std::string& text);
 
-#endif  // BIERGARTEN_PIPELINE_DATA_GENERATION_LLAMA_GENERATOR_HELPERS_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_LLAMA_GENERATOR_HELPERS_H_

pipeline/includes/data_generation/mock_generator.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_DATA_GENERATION_MOCK_GENERATOR_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_MOCK_GENERATOR_H_
-#define BIERGARTEN_PIPELINE_DATA_GENERATION_MOCK_GENERATOR_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_MOCK_GENERATOR_H_
 
 /**
  * @file data_generation/mock_generator.h
@@ -51,4 +51,4 @@ class MockGenerator final : public DataGenerator {
    static const std::vector<std::string> kBios;
 };
 
-#endif  // BIERGARTEN_PIPELINE_DATA_GENERATION_MOCK_GENERATOR_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_DATA_GENERATION_MOCK_GENERATOR_H_

pipeline/includes/data_model/location.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_MODELS_LOCATION_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_DATA_MODEL_LOCATION_H_
-#define BIERGARTEN_PIPELINE_MODELS_LOCATION_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_DATA_MODEL_LOCATION_H_
 
 /**
  * @file data_model/location.h
@@ -34,4 +34,4 @@ struct Location {
    double longitude;
 };
 
-#endif  // BIERGARTEN_PIPELINE_MODELS_LOCATION_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_DATA_MODEL_LOCATION_H_

pipeline/includes/json_handling/json_loader.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_JSON_HANDLING_JSON_LOADER_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_JSON_HANDLING_JSON_LOADER_H_
-#define BIERGARTEN_PIPELINE_JSON_HANDLING_JSON_LOADER_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_JSON_HANDLING_JSON_LOADER_H_
 
 /**
  * @file json_handling/json_loader.h
@@ -18,4 +18,4 @@ class JsonLoader {
    static std::vector<Location> LoadLocations(const std::string& filepath);
 };
 
-#endif  // BIERGARTEN_PIPELINE_JSON_HANDLING_JSON_LOADER_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_JSON_HANDLING_JSON_LOADER_H_

pipeline/includes/llama_backend_state.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_LLAMA_BACKEND_STATE_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_LLAMA_BACKEND_STATE_H_
-#define BIERGARTEN_PIPELINE_LLAMA_BACKEND_STATE_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_LLAMA_BACKEND_STATE_H_
 
 /**
  * @file llama_backend_state.h
@@ -29,4 +29,4 @@ class LlamaBackendState {
    LlamaBackendState& operator=(const LlamaBackendState&) = delete;
 };
 
-#endif  // BIERGARTEN_PIPELINE_LLAMA_BACKEND_STATE_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_LLAMA_BACKEND_STATE_H_

pipeline/includes/services/enrichment_service.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_SERVICES_ENRICHMENT_SERVICE_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_SERVICES_ENRICHMENT_SERVICE_H_
-#define BIERGARTEN_PIPELINE_SERVICES_ENRICHMENT_SERVICE_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_SERVICES_ENRICHMENT_SERVICE_H_
 
 /**
  * @file services/enrichment_service.h
@@ -27,4 +27,4 @@ class IEnrichmentService {
    virtual std::string GetLocationContext(const Location& loc) = 0;
 };
 
-#endif  // BIERGARTEN_PIPELINE_SERVICES_ENRICHMENT_SERVICE_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_SERVICES_ENRICHMENT_SERVICE_H_

pipeline/includes/services/wikipedia_service.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_WIKIPEDIA_SERVICE_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_SERVICES_WIKIPEDIA_SERVICE_H_
-#define BIERGARTEN_PIPELINE_WIKIPEDIA_SERVICE_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_SERVICES_WIKIPEDIA_SERVICE_H_
 
 /**
  * @file services/wikipedia_service.h
@@ -30,4 +30,4 @@ class WikipediaService final : public IEnrichmentService {
    std::unordered_map<std::string, std::string> extract_cache_;
 };
 
-#endif  // BIERGARTEN_PIPELINE_WIKIPEDIA_SERVICE_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_SERVICES_WIKIPEDIA_SERVICE_H_

pipeline/includes/web_client/curl_web_client.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_WEB_CLIENT_CURL_WEB_CLIENT_H_
+#ifndef BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_CURL_WEB_CLIENT_H_
-#define BIERGARTEN_PIPELINE_WEB_CLIENT_CURL_WEB_CLIENT_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_CURL_WEB_CLIENT_H_
 
 /**
  * @file web_client/curl_web_client.h
@@ -68,4 +68,4 @@ class CURLWebClient : public WebClient {
    std::string UrlEncode(const std::string& value) override;
 };
 
-#endif  // BIERGARTEN_PIPELINE_WEB_CLIENT_CURL_WEB_CLIENT_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_CURL_WEB_CLIENT_H_

pipeline/includes/web_client/web_client.h

@@ -1,5 +1,6 @@
-#ifndef BIERGARTEN_PIPELINE_WEB_CLIENT_WEB_CLIENT_H_
+#ifndef
-#define BIERGARTEN_PIPELINE_WEB_CLIENT_WEB_CLIENT_H_
+BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_WEB_CLIENT_H_
+#define BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_WEB_CLIENT_H_
 
 /**
  * @file web_client/web_client.h
@@ -42,4 +43,4 @@ class WebClient {
    virtual std::string UrlEncode(const std::string& value) = 0;
 };
 
-#endif  // BIERGARTEN_PIPELINE_WEB_CLIENT_WEB_CLIENT_H_
+#endif  // BIERGARTEN_PIPELINE_INCLUDES_WEB_CLIENT_WEB_CLIENT_H_

pipeline/src/biergarten_data_generator/generate_breweries.cpp

@@ -10,7 +10,7 @@
 void BiergartenDataGenerator::GenerateBreweries(
     const std::vector<EnrichedCity>& cities) {
    spdlog::info("\n=== SAMPLE BREWERY GENERATION ===");
-   generatedBreweries_.clear();
+   generated_breweries_.clear();
 
    size_t skipped_count = 0;
 
@@ -20,7 +20,7 @@ void BiergartenDataGenerator::GenerateBreweries(
              BreweryLocation{enriched_city.location.city,
                              enriched_city.location.country},
              enriched_city.region_context);
-         generatedBreweries_.push_back(GeneratedBrewery{
+         generated_breweries_.push_back(GeneratedBrewery{
              .location = enriched_city.location, .brewery = brewery});
       } catch (const std::exception& e) {
          ++skipped_count;

pipeline/src/biergarten_data_generator/log_results.cpp

@@ -10,7 +10,7 @@
 void BiergartenDataGenerator::LogResults() const {
    spdlog::info("\n=== GENERATED DATA DUMP ===");
    size_t index = 1;
-   for (const auto& [location, brewery] : generatedBreweries_) {
+   for (const auto& [location, brewery] : generated_breweries_) {
       spdlog::info(
           "{}. city=\"{}\" country=\"{}\" state=\"{}\" "
           "iso3166_2={} lat={} lon={}",

pipeline/src/biergarten_data_generator/query_cities_with_countries.cpp

@@ -14,8 +14,7 @@
 
 static constexpr unsigned int brewery_amount = 4;
 
-auto BiergartenDataGenerator::QueryCitiesWithCountries()
+std::vector<Location> BiergartenDataGenerator::QueryCitiesWithCountries() {
-    -> std::vector<Location> {
    spdlog::info("\n=== GEOGRAPHIC DATA OVERVIEW ===");
 
    const std::filesystem::path locations_path = "locations.json";

pipeline/src/biergarten_data_generator/run.cpp

@@ -7,7 +7,7 @@
 
 #include "biergarten_data_generator.h"
 
-auto BiergartenDataGenerator::Run() -> bool {
+bool BiergartenDataGenerator::Run() {
    try {
       const std::vector<Location> cities = QueryCitiesWithCountries();
       std::vector<EnrichedCity> enriched;

pipeline/src/data_generation/llama/generate_brewery.cpp

@@ -15,7 +15,7 @@
 
 namespace {
 
-auto ExtractFinalJsonPayload(std::string raw_response) -> std::string {
+std::string ExtractFinalJsonPayload(std::string raw_response) {
    auto trim = [](std::string_view text) -> std::string_view {
       const std::size_t first = text.find_first_not_of(" \t\n\r");
       if (first == std::string_view::npos) {
@@ -58,9 +58,8 @@ auto ExtractFinalJsonPayload(std::string raw_response) -> std::string {
 
 }  // namespace
 
-auto LlamaGenerator::GenerateBrewery(const BreweryLocation& location,
+BreweryResult LlamaGenerator::GenerateBrewery(
-                                     const std::string& region_context)
+    const BreweryLocation& location, const std::string& region_context) {
-    -> BreweryResult {
    /**
     * Preprocess and truncate region context to manageable size
     */

pipeline/src/data_generation/mock/deterministic_hash.cpp

@@ -9,8 +9,7 @@
 
 #include "data_generation/mock_generator.h"
 
-auto MockGenerator::DeterministicHash(const BreweryLocation& location)
+std::size_t MockGenerator::DeterministicHash(const BreweryLocation& location) {
-    -> std::size_t {
    std::size_t seed = 0;
    boost::hash_combine(seed, location.city_name);
    boost::hash_combine(seed, location.country_name);

pipeline/src/data_generation/mock/generate_brewery.cpp

@@ -8,9 +8,8 @@
 
 #include "data_generation/mock_generator.h"
 
-auto MockGenerator::GenerateBrewery(const BreweryLocation& location,
+BreweryResult MockGenerator::GenerateBrewery(
-                                    const std::string& /*region_context*/)
+    const BreweryLocation& location, const std::string& /*region_context*/) {
-    -> BreweryResult {
    const std::size_t hash = DeterministicHash(location);
 
    const std::string& adjective =

pipeline/src/json_handling/json_loader.cpp

@@ -13,8 +13,8 @@
 #include <sstream>
 #include <stdexcept>
 
-static auto ReadRequiredString(const boost::json::object& object,
+static std::string ReadRequiredString(const boost::json::object& object,
-                               const char* key) -> std::string {
+                                      const char* key) {
    const boost::json::value* value = object.if_contains(key);
    if (value == nullptr || !value->is_string()) {
       throw std::runtime_error(
@@ -23,8 +23,8 @@ static auto ReadRequiredString(const boost::json::object& object,
    return std::string(value->as_string().c_str());
 }
 
-static auto ReadRequiredNumber(const boost::json::object& object,
+static double ReadRequiredNumber(const boost::json::object& object,
-                               const char* key) -> double {
+                                 const char* key) {
    const boost::json::value* value = object.if_contains(key);
    if (value == nullptr || !value->is_number()) {
       throw std::runtime_error(
@@ -33,8 +33,7 @@ static auto ReadRequiredNumber(const boost::json::object& object,
    return value->to_number<double>();
 }
 
-auto JsonLoader::LoadLocations(const std::string& filepath)
+std::vector<Location> JsonLoader::LoadLocations(const std::string& filepath) {
-    -> std::vector<Location> {
    std::ifstream input(filepath);
    if (!input.is_open()) {
       throw std::runtime_error("Failed to open locations file: " + filepath);
@@ -44,7 +43,7 @@ auto JsonLoader::LoadLocations(const std::string& filepath)
    buffer << input.rdbuf();
    const std::string content = buffer.str();
 
-   boost::json::error_code error;
+   boost::system::error_code error;
    boost::json::value root = boost::json::parse(content, error);
    if (error) {
       throw std::runtime_error("Failed to parse locations JSON: " +

pipeline/src/main.cpp

@@ -32,8 +32,8 @@ namespace di = boost::di;
  * @param options Output ApplicationOptions struct.
  * @return true if parsing succeeded and should proceed, false otherwise.
  */
-auto ParseArguments(const int argc, char** argv,
+bool ParseArguments(const int argc, char** argv,
-                    ApplicationOptions& options) noexcept -> bool {
+                    ApplicationOptions& options) noexcept {
    prog_opts::options_description desc("Pipeline Options");
    desc.add_options()("help,h", "Produce help message")(
        "mocked", prog_opts::bool_switch(),
@@ -118,7 +118,7 @@ auto ParseArguments(const int argc, char** argv,
    }
 }
 
-auto main(const int argc, char** argv) noexcept -> int {
+int main(const int argc, char** argv) noexcept {
    try {
       const CurlGlobalState curl_state;
       const LlamaBackendState llama_backend_state;

pipeline/src/services/wikipedia/fetch_extract.cpp

@@ -11,7 +11,7 @@
 
 #include "services/wikipedia_service.h"
 
-auto WikipediaService::FetchExtract(std::string_view query) -> std::string {
+std::string WikipediaService::FetchExtract(std::string_view query) {
    const std::string cache_key(query);
    const auto cache_it = this->extract_cache_.find(cache_key);
    if (cache_it != this->extract_cache_.end()) {

pipeline/src/services/wikipedia/get_summary.cpp

@@ -9,7 +9,7 @@
 
 #include "services/wikipedia_service.h"
 
-auto WikipediaService::GetLocationContext(const Location& loc) -> std::string {
+std::string WikipediaService::GetLocationContext(const Location& loc) {
    const std::string cache_key = loc.city + "|" + loc.country;
    const auto cache_it = cache_.find(cache_key);
    if (cache_it != cache_.end()) {

pipeline/src/web_client/curl_web_client_utils.cpp

@@ -7,7 +7,7 @@
 
 #include <stdexcept>
 
-auto create_handle() -> CurlHandle {
+CurlHandle create_handle() {
    CURL* handle = curl_easy_init();
    if (handle == nullptr) {
       throw std::runtime_error(
@@ -16,8 +16,8 @@ auto create_handle() -> CurlHandle {
    return CurlHandle(handle, &curl_easy_cleanup);
 }
 
-auto set_common_get_options(CURL* curl, const std::string& url,
+void set_common_get_options(CURL* curl, const std::string& url,
-                            CurlTimeouts timeouts) -> void {
+                            CurlTimeouts timeouts) {
    curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
    curl_easy_setopt(curl, CURLOPT_USERAGENT, "biergarten-pipeline/0.1.0");
    curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);

pipeline/src/web_client/curl_web_client_utils.h

@@ -1,5 +1,5 @@
-#ifndef BIERGARTEN_PIPELINE_WEB_CLIENT_CURL_WEB_CLIENT_UTILS_H_
+#ifndef BIERGARTEN_PIPELINE_SRC_WEB_CLIENT_CURL_WEB_CLIENT_UTILS_H_
-#define BIERGARTEN_PIPELINE_WEB_CLIENT_CURL_WEB_CLIENT_UTILS_H_
+#define BIERGARTEN_PIPELINE_SRC_WEB_CLIENT_CURL_WEB_CLIENT_UTILS_H_
 
 /**
  * @file web_client/curl_web_client_utils.h
@@ -23,4 +23,4 @@ CurlHandle create_handle();
 void set_common_get_options(CURL* curl, const std::string& url,
                             CurlTimeouts timeouts);
 
-#endif  // BIERGARTEN_PIPELINE_WEB_CLIENT_CURL_WEB_CLIENT_UTILS_H_
+#endif  // BIERGARTEN_PIPELINE_SRC_WEB_CLIENT_CURL_WEB_CLIENT_UTILS_H_