50 lines
2.1 KiB
C
50 lines
2.1 KiB
C
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// ----------------------------------------------------------------------------
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// - Open3D: www.open3d.org -
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// ----------------------------------------------------------------------------
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// Copyright (c) 2018-2023 www.open3d.org
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// SPDX-License-Identifier: MIT
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// ----------------------------------------------------------------------------
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#pragma once
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#include <string>
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#include <vector>
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namespace open3d {
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namespace utility {
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/// \brief Computes MD5 Hash for the given file.
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/// \param file_path Path to the file.
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std::string GetMD5(const std::string& file_path);
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/// \brief Download a file from URL. If a file already exists and the MD5 hash
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/// matches, the download will be skipped.
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///
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/// \param url File URL. The saved file name will be the last part of the URL.
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/// \param md5 MD5 checksum of the file. This is required as the same
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/// URL may point to different files over time.
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/// \param download_dir The file will be downloaded to download_dir.
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/// \returns Path to downloaded file.
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/// \throw std::runtime_error If the download fails.
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std::string DownloadFromURL(const std::string& url,
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const std::string& md5,
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const std::string& download_dir);
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/// \brief Download a file from list of mirror URLs. If a file already exists
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/// and the MD5 hash matches, the download will be skipped. All file names must
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/// be the same in mirrors.
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///
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/// \param mirrors List of file mirror URLs for the same file. The saved
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/// file name will be the last part of the URL.
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/// \param md5 MD5 checksum of the file. This is required as the same URL may
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/// point to different files over time.
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/// \param download_dir The file will be downloaded to download_dir.
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/// \returns Path to downloaded file.
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/// \throw std::runtime_error If the download fails.
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std::string DownloadFromMirrors(const std::vector<std::string>& mirrors,
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const std::string& md5,
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const std::string& download_dir);
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} // namespace utility
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} // namespace open3d
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