Extract.cpp

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#include "cloudViewer/utility/Extract.h"
 
#include <FileSystem.h>
#include <Logging.h>
 
#include <unordered_map>
 
#include "cloudViewer/utility/ExtractZIP.h"
 
namespace cloudViewer {
namespace utility {
 
static const std::unordered_map<
        std::string,
        std::function<void(const std::string&, const std::string&)>>
        file_extension_to_extract_function{
                {"zip", ExtractFromZIP},
        };
 
bool IsSupportedCompressedFilePath(const std::string& file_path) {
    const std::string format =
            utility::filesystem::GetFileExtensionInLowerCase(file_path);
    return file_extension_to_extract_function.count(format) != 0;
}
 
void Extract(const std::string& file_path, const std::string& extract_dir) {
    if (!utility::filesystem::FileExists(file_path)) {
        utility::LogError("File {} does not exist.", file_path);
    }
    if (!IsSupportedCompressedFilePath(file_path)) {
        utility::LogError("Extraction Failed: unknown extension for {}.",
                          file_path);
    }
    if (!utility::filesystem::DirectoryExists(extract_dir)) {
        utility::filesystem::MakeDirectoryHierarchy(extract_dir);
        utility::LogInfo("Created directory {}.", extract_dir);
    }
    utility::LogInfo("Extracting {}.", file_path);
    const std::string format =
            utility::filesystem::GetFileExtensionInLowerCase(file_path);
    file_extension_to_extract_function.at(format)(file_path, extract_dir);
    utility::LogInfo("Extracted to {}.", extract_dir);
}
 
}  // namespace utility
}  // namespace cloudViewer