YT-19324: move YT provider to ydb/library/yql

This commit is formed by the following script: https://paste.yandex-team.ru/6f92e4b8-efc5-4d34-948b-15ee2accd7e7/text.
This commit has zero effect on all projects that depend on YQL.

The summary of changes:
- `yql/providers/yt -> ydb/library/yql/providers/yt `- the whole implementation of YT provider is moved into YDB code base for further export as a part of YT YQL plugin shared library;
- `yql/providers/stat/{expr_nodes,uploader} -> ydb/library/yql/providers/stat/{expr_nodes,uploader}` - a small interface without implementation and the description of stat expr nodes;
- `yql/core/extract_predicate/ut -> ydb/library/yql/core/extract_predicate/ut`;
- `yql/core/{ut,ut_common} -> ydb/library/yql/core/{ut,ut_common}`;
- `yql/core` is gone;
- `yql/library/url_preprocessing -> ydb/library/yql/core/url_preprocessing`.

**NB**: all new targets inside `ydb/` are under `IF (NOT CMAKE_EXPORT)` clause which disables them from open-source cmake generation and ya make build. They will be enabled in the subsequent commits.

1 files changed, 126 insertions, 0 deletions

diff --git a/yt/cpp/mapreduce/interface/logging/yt_log.cpp b/yt/cpp/mapreduce/interface/logging/yt_log.cpp
new file mode 100644
index 00000000000..9fa7b915802
--- /dev/null
+++ b/yt/cpp/mapreduce/interface/logging/yt_log.cpp
@@ -0,0 +1,126 @@
+#include "yt_log.h"
+
+#include "logger.h"
+
+#include <util/generic/guid.h>
+
+#include <util/system/mutex.h>
+
+namespace NYT {
+
+using namespace NLogging;
+
+////////////////////////////////////////////////////////////////////////////////
+
+namespace {
+
+class TLogManager
+    : public ILogManager
+{
+public:
+    static constexpr TStringBuf CategoryName = "Wrapper";
+
+public:
+    void RegisterStaticAnchor(
+        TLoggingAnchor* anchor,
+        ::TSourceLocation sourceLocation,
+        TStringBuf anchorMessage) override
+    {
+        if (anchor->Registered.exchange(true)) {
+            return;
+        }
+
+        anchor->Enabled.store(true);
+
+        auto guard = Guard(Mutex_);
+        anchor->SourceLocation = sourceLocation;
+        anchor->AnchorMessage = anchorMessage;
+    }
+
+    void UpdateAnchor(TLoggingAnchor* /*position*/) override
+    { }
+
+    void Enqueue(TLogEvent&& event) override
+    {
+        auto message = TString(event.MessageRef.ToStringBuf());
+        LogMessage(
+            ToImplLevel(event.Level),
+            ::TSourceLocation(event.SourceFile, event.SourceLine),
+            "%.*s",
+            event.MessageRef.size(),
+            event.MessageRef.begin());
+    }
+
+    const TLoggingCategory* GetCategory(TStringBuf categoryName) override
+    {
+        Y_VERIFY(categoryName == CategoryName);
+        return &Category_;
+    }
+
+    void UpdateCategory(TLoggingCategory* /*category*/) override
+    {
+        Y_FAIL();
+    }
+
+    bool GetAbortOnAlert() const override
+    {
+        return false;
+    }
+
+private:
+    static ILogger::ELevel ToImplLevel(ELogLevel level)
+    {
+        switch (level) {
+            case ELogLevel::Minimum:
+            case ELogLevel::Trace:
+            case ELogLevel::Debug:
+                return ILogger::ELevel::DEBUG;
+            case ELogLevel::Info:
+                return ILogger::ELevel::INFO;
+            case ELogLevel::Warning:
+            case ELogLevel::Error:
+                return ILogger::ELevel::ERROR;
+            case ELogLevel::Alert:
+            case ELogLevel::Fatal:
+            case ELogLevel::Maximum:
+                return ILogger::ELevel::FATAL;
+        }
+    }
+
+    static void LogMessage(ILogger::ELevel level, const ::TSourceLocation& sourceLocation, const char* format, ...)
+    {
+        va_list args;
+        va_start(args, format);
+        GetLogger()->Log(level, sourceLocation, format, args);
+        va_end(args);
+    }
+
+private:
+    ::TMutex Mutex_;
+    std::atomic<int> ActualVersion_{1};
+    const TLoggingCategory Category_{
+        .Name{CategoryName},
+        .MinPlainTextLevel{ELogLevel::Minimum},
+        .CurrentVersion{1},
+        .ActualVersion = &ActualVersion_,
+    };
+};
+
+TLogManager LogManager;
+
+} // namespace
+
+////////////////////////////////////////////////////////////////////////////////
+
+TLogger Logger(&LogManager, TLogManager::CategoryName);
+
+////////////////////////////////////////////////////////////////////////////////
+
+void FormatValue(TStringBuilderBase* builder, const TGUID& value, TStringBuf /*format*/)
+{
+    builder->AppendString(GetGuidAsString(value));
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+} // namespace NYT