text: /*********************************************************************************
   *
   * Inviwo - Interactive Visualization Workshop
   *
   * Copyright (c) 2018-2020 Inviwo Foundation
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   * list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   * this list of conditions and the following disclaimer in the documentation
   * and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
   * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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   *********************************************************************************/
  
  #include <inviwo/meta/includetools.hpp>
  #include <inviwo/meta/util.hpp>
  
  #include <fstream>
  #include <streambuf>
  #include <regex>
  #include <sstream>
  #include <fmt/format.h>
  
  namespace inviwo::meta::util {
  
  bool replaceInclude(std::filesystem::path file, std::string_view oldInclude,
                      std::string_view newInclude) {
  
      const auto data = [&file]() {
          std::ifstream ifs{file};
          if (!ifs) throw util::makeError("Unable to open module file '{}'", file.generic_string());
          return std::string((std::istreambuf_iterator<char>(ifs)), std::istreambuf_iterator<char>());
      }();
  
      const auto reInclude = std::regex(fmt::format(R"(#include\s* {})", oldInclude));
  
      if (std::regex_search(data, reInclude)) {
  
          const auto replaced =
              std::regex_replace(data, reInclude, fmt::format(R"(#include {})", newInclude));
  
          std::ofstream ofs{file};
          if (!ofs) throw util::makeError("Unable to open module file '{}'", file.generic_string());
          ofs << replaced;
  
          return true;
      } else {
          return false;
      }
  }
  
  }  // namespace inviwo::meta::util
  