YT-23568: create attribute in RichYPath

* Changelog entry
Type: feature
Component: cpp-sdk

Add support for `create` attribute in RichYPath.
Don't create paths explicitly if `create` attribute is specified.
commit_hash:52e77ce4cf5e21fae6d6e510ffb0edba35ec2a1d

Author: ermolovd

yt/cpp/mapreduce/client/operation.cpp

@@ -975,12 +975,15 @@ void CreateOutputTable(
     const TRichYPath& path)
 {
     Y_ENSURE(path.Path_, "Output table is not set");
-    Create(
-        preparer.GetClientRetryPolicy()->CreatePolicyForGenericRequest(),
-        preparer.GetContext(), preparer.GetTransactionId(), path.Path_, NT_TABLE,
-        TCreateOptions()
-            .IgnoreExisting(true)
-            .Recursive(true));
+    if (!path.Create_.Defined()) {
+        // If `create` attribute is defined
+        Create(
+            preparer.GetClientRetryPolicy()->CreatePolicyForGenericRequest(),
+            preparer.GetContext(), preparer.GetTransactionId(), path.Path_, NT_TABLE,
+            TCreateOptions()
+                .IgnoreExisting(true)
+                .Recursive(true));
+    }
 }
 
 void CreateOutputTables(

yt/cpp/mapreduce/interface/common.h

@@ -1124,6 +1124,14 @@ struct TRichYPath
     /// Allows to start cross-transactional operations.
     FLUENT_FIELD_OPTION(TTransactionId, TransactionId);
 
+    ///
+    /// @brief Wether to create operation output path.
+    ///
+    /// If set to `true` output path is created by YT server.
+    /// If set to `false` output path is not created explicitly (and operation will fail if it doesn't exist)
+    /// If attribute is not set output path is created by this library using explicit master call.
+    FLUENT_FIELD_OPTION(bool, Create);
+
     using TRenameColumnsDescriptor = THashMap<TString, TString>;
 
     /// Specifies columnar mapping which will be applied to columns before transfer to job.

yt/cpp/mapreduce/interface/serialize.cpp

@@ -471,6 +471,9 @@ void Serialize(const TRichYPath& path, NYson::IYsonConsumer* consumer)
         .DoIf(path.Cluster_.Defined(), [&] (TFluentAttributes fluent) {
             fluent.Item("cluster").Value(*path.Cluster_);
         })
+        .DoIf(path.Create_.Defined(), [&] (TFluentAttributes fluent) {
+            fluent.Item("create").Value(*path.Create_);
+        })
     .EndAttributes()
     .Value(path.Path_);
 }
@@ -503,6 +506,7 @@ void Deserialize(TRichYPath& path, const TNode& node)
     DESERIALIZE_ATTR("rename_columns", path.RenameColumns_);
     DESERIALIZE_ATTR("bypass_artifact_cache", path.BypassArtifactCache_);
     DESERIALIZE_ATTR("cluster", path.Cluster_);
+    DESERIALIZE_ATTR("create", path.Create_);
     Deserialize(path.Path_, node);
 }