mirror of
https://github.com/nestriness/cdc-file-transfer.git
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4326e972ac
The tools allow efficient and fast synchronization of large directory trees from a Windows workstation to a Linux target machine. cdc_rsync* support efficient copy of files by using content-defined chunking (CDC) to identify chunks within files that can be reused. asset_stream_manager + cdc_fuse_fs support efficient streaming of a local directory to a remote virtual file system based on FUSE. It also employs CDC to identify and reuse unchanged data chunks.
80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
// Copyright 2022 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "manifest/content_id.h"
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#include "gtest/gtest.h"
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namespace cdc_ft {
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namespace {
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using StringList = std::vector<absl::string_view>;
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static constexpr char kData[] = "Hey Google, tell me a joke.";
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static constexpr size_t kHashSize = 20;
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static constexpr char kHash[kHashSize + 1] =
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"\x12\xe8\x41\x41\x39\x93\x13\x82\x34\xd0\xfe\xcb\x4e\xcf\x6a\x4c\xfd\x74"
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"\x55\x27";
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static constexpr char kHashHex[] = "12e841413993138234d0fecb4ecf6a4cfd745527";
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TEST(ContentIdTest, StringToContentId) {
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ContentIdProto content_id = ContentId::FromDataString(std::string(kData));
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EXPECT_EQ(content_id.blake3_sum_160().size(), kHashSize);
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EXPECT_EQ(content_id.blake3_sum_160(), absl::string_view(kHash, kHashSize));
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}
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TEST(ContentIdTest, StringViewToContentId) {
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ContentIdProto content_id =
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ContentId::FromDataString(absl::string_view(kData));
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EXPECT_EQ(content_id.blake3_sum_160().size(), kHashSize);
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EXPECT_EQ(content_id.blake3_sum_160(), absl::string_view(kHash, kHashSize));
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}
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TEST(ContentIdTest, PtrToContentId) {
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absl::string_view data(kData);
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ContentIdProto content_id = ContentId::FromArray(data.data(), data.size());
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EXPECT_EQ(content_id.blake3_sum_160().size(), kHashSize);
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EXPECT_EQ(content_id.blake3_sum_160(), absl::string_view(kHash, kHashSize));
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}
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TEST(ContentIdTest, ToHexString) {
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ContentIdProto content_id =
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ContentId::FromDataString(absl::string_view(kData));
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std::string hash_str = ContentId::ToHexString(content_id);
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EXPECT_EQ(hash_str.size(), 2 * kHashSize);
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EXPECT_EQ(hash_str, kHashHex);
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}
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TEST(ContentIdTest, FromHexString) {
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ContentIdProto content_id;
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EXPECT_TRUE(ContentId::FromHexString(kHashHex, &content_id));
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EXPECT_EQ(content_id.blake3_sum_160(), kHash);
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}
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TEST(ContentIdTest, GetByte) {
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ContentIdProto content_id;
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EXPECT_EQ(ContentId::GetByte(content_id, 0), 0);
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EXPECT_EQ(ContentId::GetByte(content_id, 1000), 0);
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EXPECT_TRUE(ContentId::FromHexString(kHashHex, &content_id));
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EXPECT_EQ(ContentId::GetByte(content_id, 0), static_cast<uint8_t>(kHash[0]));
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EXPECT_EQ(ContentId::GetByte(content_id, 1), static_cast<uint8_t>(kHash[1]));
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EXPECT_EQ(ContentId::GetByte(content_id, 20), 0);
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}
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} // namespace
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} // namespace cdc_ft
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