Fixing headers as per OSS requirement (facebookresearch#3847)

Summary:
Pull Request resolved: facebookresearch#3847

same as title.
Fixing headers as raised in task - P1558157110

Reviewed By: junjieqi

Differential Revision: D62408917

demos/rocksdb_ivf/RocksDBInvertedLists.cpp

@@ -1,4 +1,9 @@
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
 
 #include "RocksDBInvertedLists.h"
 

demos/rocksdb_ivf/RocksDBInvertedLists.h

@@ -1,4 +1,11 @@
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// -*- c++ -*-
 
 #pragma once
 

demos/rocksdb_ivf/demo_rocksdb_ivf.cpp

@@ -1,4 +1,11 @@
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+// -*- c++ -*-
 
 #include <exception>
 #include <iostream>

faiss/gpu/hipify.sh

@@ -1,4 +1,8 @@
 #!/bin/bash
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
 
 # go one level up from faiss/gpu
 top=$(dirname "${BASH_SOURCE[0]}")/..

faiss/gpu/impl/scan/IVFInterleavedScanKernelTemplate.cu

@@ -1,3 +1,10 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
 #include <faiss/gpu/impl/scan/IVFInterleavedImpl.cuh>
 
 namespace faiss {

faiss/gpu/test/test_index_cpu_to_gpu.py

@@ -1,3 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
 import numpy as np
 import unittest
 import faiss

tests/test_common_ivf_empty_index.cpp

@@ -1,4 +1,9 @@
-// (c) Meta Platforms, Inc. and affiliates. Confidential and proprietary.
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
 
 #include <gtest/gtest.h>