Function archiveConfig

src/OpenColorIO/OCIOZArchive.cpp:205–326

//////////////////////////////////////////////////////////////////////////////////////

void archiveConfig(std::ostream & ostream, const Config & config, const char * configWorkingDirectory)
{
    void * archiver = nullptr;
    void *write_mem_stream = NULL;
    const uint8_t *buffer_ptr = NULL;
    int32_t buffer_size = 0;
    mz_zip_file file_info;

    if (!config.isArchivable())
    {
        std::ostringstream os;
        os << "Config is not archivable.";
        throw Exception(os.str().c_str());  
    }

    // Initialize.
    memset(&file_info, 0, sizeof(file_info));

    // Retrieve and store the config as string.
    std::stringstream ss;
    config.serialize(ss);
    std::string configStr = ss.str();

    // Write zip to memory stream.
#if MZ_VERSION_BUILD >= 040000
    write_mem_stream = mz_stream_mem_create();
#else
    mz_stream_mem_create(&write_mem_stream);
#endif
    mz_stream_mem_set_grow_size(write_mem_stream, 128 * 1024);
    mz_stream_open(write_mem_stream, NULL, MZ_OPEN_MODE_CREATE);

    // Minizip archive options.
    ArchiveOptions options;
    // Make sure that the compression method is set to DEFLATE.
    options.compress_method = ArchiveCompressionMethods::DEFLATE;
    // Make sure that the compression level is set to BEST.
    options.compress_level  = ArchiveCompressionLevels::BEST;

    // Create the writer handle.
#if MZ_VERSION_BUILD >= 040000
    archiver = mz_zip_writer_create();
#else
    mz_zip_writer_create(&archiver);
#endif

    // Archive options.
    // Compression method
    mz_zip_writer_set_compress_method(archiver, options.compress_method);
    // Compress level.
    mz_zip_writer_set_compress_level(archiver, options.compress_level);

    MinizipNgMemStreamGuard memStreamGuard(write_mem_stream);
    MinizipNgHandlerGuard archiverGuard(archiver, true, true);

    // Open the in-memory zip.
    if (mz_zip_writer_open(archiver, write_mem_stream, 0) == MZ_OK)
    {