Method printInfoJSON

tools/ktx/command_info.cpp:177–238

}

KTX_error_code CommandInfo::printInfoJSON(std::istream& file, bool minified) {
    const auto base_indent = minified ? 0 : +0;
    const auto indent_width = minified ? 0 : 4;
    const auto space = minified ? "" : " ";
    const auto nl = minified ? "" : "\n";

    std::ostringstream messagesOS;
    PrintIndent pi{messagesOS, base_indent, indent_width};

    bool first = true;
    const auto validationResult = validateIOStream(file, fmtInFile(options.inputFilepath), false, false, [&](const ValidationReport& issue) {
        if (!std::exchange(first, false)) {
            pi(2, "}},{}", nl);
        }
        pi(2, "{{{}", nl);
        pi(3, "\"id\":{}{},{}", space, issue.id, nl);
        pi(3, "\"type\":{}\"{}\",{}", space, toString(issue.type), nl);
        pi(3, "\"message\":{}\"{}\",{}", space, escape_json_copy(issue.message), nl);
        pi(3, "\"details\":{}\"{}\"{}", space, escape_json_copy(issue.details), nl);
    });

    file.clear(); // Clear any unexpected EOF from validation

    // Workaround detection to decide if ktx will produce any output into the json
    // to eliminate a trailing comma
    file.seekg(0, std::ios_base::end);
    const auto fileSize = file.tellg();
    bool fileIdentifierIsCorrect = false;
    if (fileSize >= 12) {
        static constexpr uint8_t ktx2_identifier_reference[12] = KTX2_IDENTIFIER_REF;
        ktx_uint8_t identifier[12];
        file.seekg(0, std::ios_base::beg);
        file.read(reinterpret_cast<char*>(identifier), 12);
        fileIdentifierIsCorrect = std::memcmp(identifier, ktx2_identifier_reference, 12) == 0;
    }
    const auto ktxWillPrintOutput = fileIdentifierIsCorrect && fileSize >= KTX2_HEADER_SIZE;

    PrintIndent out{std::cout, base_indent, indent_width};
    out(0, "{{{}", nl);
    out(1, "\"$schema\":{}\"https://schema.khronos.org/ktx/info_v0.json\",{}", space, nl);
    out(1, "\"valid\":{}{},{}", space, validationResult == 0, nl);
    if (!first) {
        out(1, "\"messages\":{}[{}", space, nl);
        fmt::print("{}", std::move(messagesOS).str());
        out(2, "}}{}", nl);
        out(1, "]{}{}", ktxWillPrintOutput ? "," : "", nl);
    } else {
        out(1, "\"messages\":{}[]{}{}", space, ktxWillPrintOutput ? "," : "", nl);
    }

    file.seekg(0, std::ios_base::beg);
    if (!file) {
        out(0, "}}{}", nl);
        return validationResult == 0 ? KTX_FILE_SEEK_ERROR : KTX_SUCCESS;
    }

    StreambufStream<std::streambuf*> ktx2Stream{file.rdbuf(), std::ios::in | std::ios::binary};
    const auto result = ktxPrintKTX2InfoJSONForStream(ktx2Stream.stream(), base_indent + 1, indent_width, minified);