Add build info header to userver.

commit_hash:bd58b2fdcae41bd2a681e1bf39c7059ae71b6a96

Author: shfdis

.mapping.json

@@ -6319,6 +6319,8 @@
   "ydb/src/ydb/dist_lock/worker.cpp":"taxi/uservices/userver/ydb/src/ydb/dist_lock/worker.cpp",
   "ydb/src/ydb/exceptions.cpp":"taxi/uservices/userver/ydb/src/ydb/exceptions.cpp",
   "ydb/src/ydb/federated_topic.cpp":"taxi/uservices/userver/ydb/src/ydb/federated_topic.cpp",
+  "ydb/src/ydb/impl/build_info.cpp":"taxi/uservices/userver/ydb/src/ydb/impl/build_info.cpp",
+  "ydb/src/ydb/impl/build_info.hpp":"taxi/uservices/userver/ydb/src/ydb/impl/build_info.hpp",
   "ydb/src/ydb/impl/config.cpp":"taxi/uservices/userver/ydb/src/ydb/impl/config.cpp",
   "ydb/src/ydb/impl/config.hpp":"taxi/uservices/userver/ydb/src/ydb/impl/config.hpp",
   "ydb/src/ydb/impl/dist_lock/semaphore_settings.hpp":"taxi/uservices/userver/ydb/src/ydb/impl/dist_lock/semaphore_settings.hpp",

ydb/src/ydb/impl/build_info.cpp

@@ -0,0 +1,60 @@
+#include "build_info.hpp"
+
+#include <ydb-cpp-sdk/client/driver/driver.h>
+
+#include <userver/utils/algo.hpp>
+#include <userver/utils/assert.hpp>
+#include <userver/utils/userver_info.hpp>
+
+USERVER_NAMESPACE_BEGIN
+
+namespace ydb::impl {
+
+namespace {
+
+constexpr std::string_view kBuildInfoName = "ydb-userver";
+
+bool IsNonEmptyAlnum(std::string_view s) {
+    return !s.empty() && std::ranges::all_of(s, [](char c) { return isdigit(c) || isalpha(c) && islower(c); });
+}
+
+}  // namespace
+
+std::string FormatUserverVersionForBuildInfo(std::string_view version) {
+    const auto dash = version.find('-');
+    if (dash != std::string_view::npos) {
+        version = version.substr(0, dash);
+    }
+
+    const auto dot1 = version.find('.');
+    UINVARIANT(dot1 != std::string_view::npos, "Invalid userver version");
+
+    const auto dot2 = version.find('.', dot1 + 1);
+    std::string result;
+    if (dot2 == std::string_view::npos) {
+        result = utils::StrCat(version, ".0");
+    } else {
+        UINVARIANT(version.find('.', dot2 + 1) == std::string_view::npos, "Invalid userver version");
+        result.assign(version);
+    }
+
+    const auto result_dot1 = result.find('.');
+    const auto result_dot2 = result.find('.', result_dot1 + 1);
+    UINVARIANT(
+        IsNonEmptyAlnum(std::string_view{result}.substr(0, result_dot1)
+        ) && IsNonEmptyAlnum(std::string_view{result}.substr(result_dot1 + 1, result_dot2 - result_dot1 - 1)) &&
+            IsNonEmptyAlnum(std::string_view{result}.substr(result_dot2 + 1)),
+        "Invalid userver version for build info"
+    );
+
+    return result;
+}
+
+void AppendUserverYdbBuildInfo(NYdb::TDriverConfig& config) {
+    const auto version = FormatUserverVersionForBuildInfo(utils::GetUserverVersion());
+    config.AppendBuildInfo(utils::StrCat(kBuildInfoName, "/", version));
+}
+
+}  // namespace ydb::impl
+
+USERVER_NAMESPACE_END

ydb/src/ydb/impl/build_info.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <string>
+#include <string_view>
+
+#include <ydb-cpp-sdk/client/driver/fwd.h>
+
+USERVER_NAMESPACE_BEGIN
+
+namespace ydb::impl {
+
+/// Normalizes userver version to X.Y.Z format required by NYdb::TDriverConfig::AppendBuildInfo.
+std::string FormatUserverVersionForBuildInfo(std::string_view version);
+
+/// Appends "ydb-userver/<version>" segment to the driver config build info header.
+void AppendUserverYdbBuildInfo(NYdb::TDriverConfig& config);
+
+}  // namespace ydb::impl
+
+USERVER_NAMESPACE_END

ydb/src/ydb/impl/driver.cpp

@@ -8,6 +8,7 @@
 #include <userver/utils/algo.hpp>
 #include <userver/utils/text_light.hpp>
 
+#include <ydb/impl/build_info.hpp>
 #include <ydb/impl/config.hpp>
 #include <ydb/impl/native_metrics.hpp>
 
@@ -70,6 +71,8 @@ Driver::Driver(std::string dbname, impl::DriverSettings settings)
         driver_config.SetGRpcKeepAlivePermitWithoutCalls(*settings.grpc_keepalive_permit_without_calls);
     }
 
+    AppendUserverYdbBuildInfo(driver_config);
+
     driver_ = std::make_unique<NYdb::TDriver>(driver_config);
     NSolomonStatExtension::AddMetricRegistry(*driver_, native_metrics_.get());
 }