Disable IngestExternalFile in ReadOnly mode

Summary:
Disable IngestExternalFile() in read only mode
Closes https://github.com/facebook/rocksdb/pull/1781

Differential Revision: D4439179

Pulled By: IslamAbdelRahman

fbshipit-source-id: b7e46e7

db/compacted_db_impl.h

@@ -76,6 +76,13 @@ class CompactedDBImpl : public DBImpl {
                        ColumnFamilyHandle* column_family) override {
     return Status::NotSupported("Not supported in compacted db mode.");
   }
+  using DB::IngestExternalFile;
+  virtual Status IngestExternalFile(
+      ColumnFamilyHandle* column_family,
+      const std::vector<std::string>& external_files,
+      const IngestExternalFileOptions& ingestion_options) override {
+    return Status::NotSupported("Not supported in compacted db mode.");
+  }
 
  private:
   friend class DB;

db/db_impl_readonly.h

@@ -79,7 +79,6 @@ class DBImplReadOnly : public DBImpl {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
 
-#ifndef ROCKSDB_LITE
   virtual Status DisableFileDeletions() override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
@@ -92,7 +91,6 @@ class DBImplReadOnly : public DBImpl {
                               bool flush_memtable = true) override {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
-#endif  // ROCKSDB_LITE
 
   using DBImpl::Flush;
   virtual Status Flush(const FlushOptions& options,
@@ -105,6 +103,14 @@ class DBImplReadOnly : public DBImpl {
     return Status::NotSupported("Not supported operation in read only mode.");
   }
 
+  using DB::IngestExternalFile;
+  virtual Status IngestExternalFile(
+      ColumnFamilyHandle* column_family,
+      const std::vector<std::string>& external_files,
+      const IngestExternalFileOptions& ingestion_options) override {
+    return Status::NotSupported("Not supported operation in read only mode.");
+  }
+
  private:
   friend class DB;