[Code Health] Clang Tidy cleanup, Part 2 (open-telemetry#3038)

.clang-tidy

@@ -31,9 +31,12 @@ Checks: >
   -misc-unused-alias-decls,
   -misc-use-anonymous-namespace,
   cppcoreguidelines-*,
+  -cppcoreguidelines-owning-memory,
+  -cppcoreguidelines-avoid-do-while,
   -cppcoreguidelines-avoid-c-arrays,
   -cppcoreguidelines-avoid-magic-numbers,
   -cppcoreguidelines-init-variables,
   -cppcoreguidelines-macro-usage,
   -cppcoreguidelines-non-private-member-variables-in-classes,
+  -cppcoreguidelines-avoid-non-const-global-variables,
   -cppcoreguidelines-pro-*

.github/workflows/clang-tidy.yaml

@@ -68,7 +68,7 @@ jobs:
       - name: Run clang-tidy
         run: |
           cd build
-          make -j$(nproc) 2>&1 | tee -a clang-tidy.log || exit 1
+          make 2>&1 | tee -a clang-tidy.log || exit 1
 
       - uses: actions/upload-artifact@v4
         with:

api/test/baggage/propagation/baggage_propagator_test.cc

@@ -15,7 +15,7 @@ class BaggageCarrierTest : public context::propagation::TextMapCarrier
 {
 public:
   BaggageCarrierTest() = default;
-  virtual nostd::string_view Get(nostd::string_view key) const noexcept override
+  nostd::string_view Get(nostd::string_view key) const noexcept override
   {
     auto it = headers_.find(std::string(key));
     if (it != headers_.end())
@@ -24,7 +24,7 @@ class BaggageCarrierTest : public context::propagation::TextMapCarrier
     }
     return "";
   }
-  virtual void Set(nostd::string_view key, nostd::string_view value) noexcept override
+  void Set(nostd::string_view key, nostd::string_view value) noexcept override
   {
     headers_[std::string(key)] = std::string(value);
   }

api/test/context/propagation/composite_propagator_test.cc

@@ -31,7 +31,7 @@ static std::string Hex(const T &id_item)
 class TextMapCarrierTest : public context::propagation::TextMapCarrier
 {
 public:
-  virtual nostd::string_view Get(nostd::string_view key) const noexcept override
+  nostd::string_view Get(nostd::string_view key) const noexcept override
   {
     auto it = headers_.find(std::string(key));
     if (it != headers_.end())
@@ -40,7 +40,7 @@ class TextMapCarrierTest : public context::propagation::TextMapCarrier
     }
     return "";
   }
-  virtual void Set(nostd::string_view key, nostd::string_view value) noexcept override
+  void Set(nostd::string_view key, nostd::string_view value) noexcept override
   {
     headers_[std::string(key)] = std::string(value);
   }
@@ -66,7 +66,7 @@ class CompositePropagatorTest : public ::testing::Test
         new context::propagation::CompositePropagator(std::move(propogator_list));
   }
 
-  ~CompositePropagatorTest() { delete composite_propagator_; }
+  ~CompositePropagatorTest() override { delete composite_propagator_; }
 
 protected:
   context::propagation::CompositePropagator *composite_propagator_;

api/test/logs/logger_benchmark.cc

@@ -32,7 +32,7 @@ constexpr int64_t kMaxIterations = 1000000000;
 class Barrier
 {
 public:
-  explicit Barrier(std::size_t iCount) : mThreshold(iCount), mCount(iCount), mGeneration(0) {}
+  explicit Barrier(std::size_t iCount) : mThreshold(iCount), mCount(iCount) {}
 
   void Wait()
   {
@@ -55,7 +55,7 @@ class Barrier
   std::condition_variable mCond;
   std::size_t mThreshold;
   std::size_t mCount;
-  std::size_t mGeneration;
+  std::size_t mGeneration{0};
 };
 
 static void ThreadRoutine(Barrier &barrier,
@@ -84,14 +84,14 @@ static void ThreadRoutine(Barrier &barrier,
 
 void MultiThreadRunner(benchmark::State &state, const std::function<void()> &func)
 {
-  int num_threads = std::thread::hardware_concurrency();
+  uint32_t num_threads = std::thread::hardware_concurrency();
 
   Barrier barrier(num_threads);
 
   std::vector<std::thread> threads;
 
   threads.reserve(num_threads);
-  for (int i = 0; i < num_threads; i++)
+  for (uint32_t i = 0; i < num_threads; i++)
   {
     threads.emplace_back(ThreadRoutine, std::ref(barrier), std::ref(state), i, func);
   }

api/test/nostd/shared_ptr_test.cc

@@ -35,7 +35,7 @@ class C
 class D : public C
 {
 public:
-  virtual ~D() {}
+  ~D() override {}
 };
 
 TEST(SharedPtrTest, DefaultConstruction)

api/test/trace/propagation/b3_propagation_test.cc

@@ -15,7 +15,7 @@ using namespace opentelemetry;
 class TextMapCarrierTest : public context::propagation::TextMapCarrier
 {
 public:
-  virtual nostd::string_view Get(nostd::string_view key) const noexcept override
+  nostd::string_view Get(nostd::string_view key) const noexcept override
   {
     auto it = headers_.find(std::string(key));
     if (it != headers_.end())
@@ -24,7 +24,7 @@ class TextMapCarrierTest : public context::propagation::TextMapCarrier
     }
     return "";
   }
-  virtual void Set(nostd::string_view key, nostd::string_view value) noexcept override
+  void Set(nostd::string_view key, nostd::string_view value) noexcept override
   {
     headers_[std::string(key)] = std::string(value);
   }

api/test/trace/propagation/http_text_format_test.cc

@@ -18,7 +18,7 @@ using namespace opentelemetry;
 class TextMapCarrierTest : public context::propagation::TextMapCarrier
 {
 public:
-  virtual nostd::string_view Get(nostd::string_view key) const noexcept override
+  nostd::string_view Get(nostd::string_view key) const noexcept override
   {
     auto it = headers_.find(std::string(key));
     if (it != headers_.end())
@@ -27,7 +27,7 @@ class TextMapCarrierTest : public context::propagation::TextMapCarrier
     }
     return "";
   }
-  virtual void Set(nostd::string_view key, nostd::string_view value) noexcept override
+  void Set(nostd::string_view key, nostd::string_view value) noexcept override
   {
     headers_[std::string(key)] = std::string(value);
   }

api/test/trace/propagation/jaeger_propagation_test.cc

@@ -14,7 +14,7 @@ using namespace opentelemetry;
 class TextMapCarrierTest : public context::propagation::TextMapCarrier
 {
 public:
-  virtual nostd::string_view Get(nostd::string_view key) const noexcept override
+  nostd::string_view Get(nostd::string_view key) const noexcept override
   {
     auto it = headers_.find(std::string(key));
     if (it != headers_.end())
@@ -23,7 +23,7 @@ class TextMapCarrierTest : public context::propagation::TextMapCarrier
     }
     return "";
   }
-  virtual void Set(nostd::string_view key, nostd::string_view value) noexcept override
+  void Set(nostd::string_view key, nostd::string_view value) noexcept override
   {
     headers_[std::string(key)] = std::string(value);
   }

examples/http/server.cc

@@ -21,8 +21,8 @@ constexpr const char *server_name = "localhost";
 class RequestHandler : public HTTP_SERVER_NS::HttpRequestCallback
 {
 public:
-  virtual int onHttpRequest(HTTP_SERVER_NS::HttpRequest const &request,
-                            HTTP_SERVER_NS::HttpResponse &response) override
+  int onHttpRequest(HTTP_SERVER_NS::HttpRequest const &request,
+                    HTTP_SERVER_NS::HttpResponse &response) override
   {
     StartSpanOptions options;
     options.kind          = SpanKind::kServer;  // server

exporters/otlp/src/otlp_file_client.cc

@@ -966,7 +966,7 @@ class OPENTELEMETRY_LOCAL_SYMBOL OtlpFileSystemBackend : public OtlpFileAppender
 {
 public:
   explicit OtlpFileSystemBackend(const OtlpFileClientFileSystemOptions &options)
-      : options_(options), is_initialized_{false}, check_file_path_interval_{0}
+      : options_(options), is_initialized_{false}
   {
     file_ = std::make_shared<FileStats>();
     file_->is_shutdown.store(false);
@@ -1539,7 +1539,7 @@ class OPENTELEMETRY_LOCAL_SYMBOL OtlpFileSystemBackend : public OtlpFileAppender
   std::shared_ptr<FileStats> file_;
 
   std::atomic<bool> is_initialized_;
-  std::time_t check_file_path_interval_;
+  std::time_t check_file_path_interval_{0};
 };
 
 class OPENTELEMETRY_LOCAL_SYMBOL OtlpFileOstreamBackend : public OtlpFileAppender
@@ -1568,7 +1568,7 @@ class OPENTELEMETRY_LOCAL_SYMBOL OtlpFileOstreamBackend : public OtlpFileAppende
 };
 
 OtlpFileClient::OtlpFileClient(OtlpFileClientOptions &&options)
-    : is_shutdown_(false), options_(options)
+    : is_shutdown_(false), options_(std::move(options))
 {
   if (nostd::holds_alternative<OtlpFileClientFileSystemOptions>(options_.backend_options))
   {

exporters/otlp/src/otlp_file_metric_exporter_options.cc

@@ -13,6 +13,7 @@ namespace otlp
 {
 
 OtlpFileMetricExporterOptions::OtlpFileMetricExporterOptions()
+    : aggregation_temporality(PreferredAggregationTemporality::kCumulative)
 {
   console_debug = false;
 
@@ -25,8 +26,6 @@ OtlpFileMetricExporterOptions::OtlpFileMetricExporterOptions()
   fs_options.rotate_size    = 10;
 
   backend_options = fs_options;
-
-  aggregation_temporality = PreferredAggregationTemporality::kCumulative;
 }
 
 OtlpFileMetricExporterOptions::~OtlpFileMetricExporterOptions() {}

exporters/otlp/src/otlp_grpc_metric_exporter_options.cc

@@ -11,6 +11,7 @@ namespace otlp
 {
 
 OtlpGrpcMetricExporterOptions::OtlpGrpcMetricExporterOptions()
+    : aggregation_temporality(PreferredAggregationTemporality::kCumulative)
 {
   endpoint                    = GetOtlpDefaultGrpcMetricsEndpoint();
   use_ssl_credentials         = !GetOtlpDefaultGrpcMetricsIsInsecure(); /* negation intended. */
@@ -28,8 +29,6 @@ OtlpGrpcMetricExporterOptions::OtlpGrpcMetricExporterOptions()
   metadata   = GetOtlpDefaultMetricsHeaders();
   user_agent = GetOtlpDefaultUserAgent();
 
-  aggregation_temporality = PreferredAggregationTemporality::kCumulative;
-
   max_threads = 0;
 
   compression = GetOtlpDefaultMetricsCompression();

exporters/otlp/src/otlp_http_client.cc

@@ -707,7 +707,7 @@ OtlpHttpClient::~OtlpHttpClient()
 OtlpHttpClient::OtlpHttpClient(OtlpHttpClientOptions &&options,
                                std::shared_ptr<ext::http::client::HttpClient> http_client)
     : is_shutdown_(false),
-      options_(options),
+      options_(std::move(options)),
       http_client_(std::move(http_client)),
       start_session_counter_(0),
       finished_session_counter_(0)

exporters/otlp/src/otlp_http_exporter_options.cc

@@ -16,27 +16,28 @@ namespace otlp
 {
 
 OtlpHttpExporterOptions::OtlpHttpExporterOptions()
+    : json_bytes_mapping(JsonBytesMappingKind::kHexId),
+      use_json_name(false),
+      console_debug(false),
+      ssl_insecure_skip_verify(false)
 {
-  url                = GetOtlpDefaultHttpTracesEndpoint();
-  content_type       = GetOtlpHttpProtocolFromString(GetOtlpDefaultHttpTracesProtocol());
-  json_bytes_mapping = JsonBytesMappingKind::kHexId;
-  use_json_name      = false;
-  console_debug      = false;
-  timeout            = GetOtlpDefaultTracesTimeout();
-  http_headers       = GetOtlpDefaultTracesHeaders();
+  url          = GetOtlpDefaultHttpTracesEndpoint();
+  content_type = GetOtlpHttpProtocolFromString(GetOtlpDefaultHttpTracesProtocol());
+
+  timeout      = GetOtlpDefaultTracesTimeout();
+  http_headers = GetOtlpDefaultTracesHeaders();
 
 #ifdef ENABLE_ASYNC_EXPORT
   max_concurrent_requests     = 64;
   max_requests_per_connection = 8;
 #endif /* ENABLE_ASYNC_EXPORT */
 
-  ssl_insecure_skip_verify = false;
-  ssl_ca_cert_path         = GetOtlpDefaultTracesSslCertificatePath();
-  ssl_ca_cert_string       = GetOtlpDefaultTracesSslCertificateString();
-  ssl_client_key_path      = GetOtlpDefaultTracesSslClientKeyPath();
-  ssl_client_key_string    = GetOtlpDefaultTracesSslClientKeyString();
-  ssl_client_cert_path     = GetOtlpDefaultTracesSslClientCertificatePath();
-  ssl_client_cert_string   = GetOtlpDefaultTracesSslClientCertificateString();
+  ssl_ca_cert_path       = GetOtlpDefaultTracesSslCertificatePath();
+  ssl_ca_cert_string     = GetOtlpDefaultTracesSslCertificateString();
+  ssl_client_key_path    = GetOtlpDefaultTracesSslClientKeyPath();
+  ssl_client_key_string  = GetOtlpDefaultTracesSslClientKeyString();
+  ssl_client_cert_path   = GetOtlpDefaultTracesSslClientCertificatePath();
+  ssl_client_cert_string = GetOtlpDefaultTracesSslClientCertificateString();
 
   ssl_min_tls      = GetOtlpDefaultTracesSslTlsMinVersion();
   ssl_max_tls      = GetOtlpDefaultTracesSslTlsMaxVersion();

exporters/otlp/src/otlp_http_log_record_exporter_options.cc

@@ -16,27 +16,28 @@ namespace otlp
 {
 
 OtlpHttpLogRecordExporterOptions::OtlpHttpLogRecordExporterOptions()
+    : json_bytes_mapping(JsonBytesMappingKind::kHexId),
+      use_json_name(false),
+      console_debug(false),
+      ssl_insecure_skip_verify(false)
 {
-  url                = GetOtlpDefaultHttpLogsEndpoint();
-  content_type       = GetOtlpHttpProtocolFromString(GetOtlpDefaultHttpLogsProtocol());
-  json_bytes_mapping = JsonBytesMappingKind::kHexId;
-  use_json_name      = false;
-  console_debug      = false;
-  timeout            = GetOtlpDefaultLogsTimeout();
-  http_headers       = GetOtlpDefaultLogsHeaders();
+  url          = GetOtlpDefaultHttpLogsEndpoint();
+  content_type = GetOtlpHttpProtocolFromString(GetOtlpDefaultHttpLogsProtocol());
+
+  timeout      = GetOtlpDefaultLogsTimeout();
+  http_headers = GetOtlpDefaultLogsHeaders();
 
 #ifdef ENABLE_ASYNC_EXPORT
   max_concurrent_requests     = 64;
   max_requests_per_connection = 8;
 #endif
 
-  ssl_insecure_skip_verify = false;
-  ssl_ca_cert_path         = GetOtlpDefaultLogsSslCertificatePath();
-  ssl_ca_cert_string       = GetOtlpDefaultLogsSslCertificateString();
-  ssl_client_key_path      = GetOtlpDefaultLogsSslClientKeyPath();
-  ssl_client_key_string    = GetOtlpDefaultLogsSslClientKeyString();
-  ssl_client_cert_path     = GetOtlpDefaultLogsSslClientCertificatePath();
-  ssl_client_cert_string   = GetOtlpDefaultLogsSslClientCertificateString();
+  ssl_ca_cert_path       = GetOtlpDefaultLogsSslCertificatePath();
+  ssl_ca_cert_string     = GetOtlpDefaultLogsSslCertificateString();
+  ssl_client_key_path    = GetOtlpDefaultLogsSslClientKeyPath();
+  ssl_client_key_string  = GetOtlpDefaultLogsSslClientKeyString();
+  ssl_client_cert_path   = GetOtlpDefaultLogsSslClientCertificatePath();
+  ssl_client_cert_string = GetOtlpDefaultLogsSslClientCertificateString();
 
   ssl_min_tls      = GetOtlpDefaultLogsSslTlsMinVersion();
   ssl_max_tls      = GetOtlpDefaultLogsSslTlsMaxVersion();

exporters/otlp/src/otlp_http_metric_exporter_options.cc

@@ -17,28 +17,29 @@ namespace otlp
 {
 
 OtlpHttpMetricExporterOptions::OtlpHttpMetricExporterOptions()
+    : json_bytes_mapping(JsonBytesMappingKind::kHexId),
+      use_json_name(false),
+      console_debug(false),
+      aggregation_temporality(PreferredAggregationTemporality::kCumulative),
+      ssl_insecure_skip_verify(false)
 {
-  url                     = GetOtlpDefaultMetricsEndpoint();
-  content_type            = GetOtlpHttpProtocolFromString(GetOtlpDefaultHttpMetricsProtocol());
-  json_bytes_mapping      = JsonBytesMappingKind::kHexId;
-  use_json_name           = false;
-  console_debug           = false;
-  timeout                 = GetOtlpDefaultMetricsTimeout();
-  http_headers            = GetOtlpDefaultMetricsHeaders();
-  aggregation_temporality = PreferredAggregationTemporality::kCumulative;
+  url          = GetOtlpDefaultMetricsEndpoint();
+  content_type = GetOtlpHttpProtocolFromString(GetOtlpDefaultHttpMetricsProtocol());
+
+  timeout      = GetOtlpDefaultMetricsTimeout();
+  http_headers = GetOtlpDefaultMetricsHeaders();
 
 #ifdef ENABLE_ASYNC_EXPORT
   max_concurrent_requests     = 64;
   max_requests_per_connection = 8;
 #endif
 
-  ssl_insecure_skip_verify = false;
-  ssl_ca_cert_path         = GetOtlpDefaultMetricsSslCertificatePath();
-  ssl_ca_cert_string       = GetOtlpDefaultMetricsSslCertificateString();
-  ssl_client_key_path      = GetOtlpDefaultMetricsSslClientKeyPath();
-  ssl_client_key_string    = GetOtlpDefaultMetricsSslClientKeyString();
-  ssl_client_cert_path     = GetOtlpDefaultMetricsSslClientCertificatePath();
-  ssl_client_cert_string   = GetOtlpDefaultMetricsSslClientCertificateString();
+  ssl_ca_cert_path       = GetOtlpDefaultMetricsSslCertificatePath();
+  ssl_ca_cert_string     = GetOtlpDefaultMetricsSslCertificateString();
+  ssl_client_key_path    = GetOtlpDefaultMetricsSslClientKeyPath();
+  ssl_client_key_string  = GetOtlpDefaultMetricsSslClientKeyString();
+  ssl_client_cert_path   = GetOtlpDefaultMetricsSslClientCertificatePath();
+  ssl_client_cert_string = GetOtlpDefaultMetricsSslClientCertificateString();
 
   ssl_min_tls      = GetOtlpDefaultMetricsSslTlsMinVersion();
   ssl_max_tls      = GetOtlpDefaultMetricsSslTlsMaxVersion();