bool CopyFile()

in src/utils/File_Utils.cpp [55:88]

• 31 lines of code
• 6 McCabe index (conditional complexity)

bool CopyFile(const std::string& srcFilename, const std::string& dstFilename, bool createPath) {
  std::ifstream srcFile(srcFilename, std::ios::binary);
  if (!srcFile) {
    fmt::printf("Warning: Couldn't open file %s for reading.\n", srcFilename);
    return false;
  }
  // find source file length
  srcFile.seekg(0, std::ios::end);
  std::streamsize srcSize = srcFile.tellg();
  srcFile.seekg(0, std::ios::beg);

  if (createPath && !CreatePath(dstFilename.c_str())) {
    fmt::printf("Warning: Couldn't create directory %s.\n", dstFilename);
    return false;
  }

  std::ofstream dstFile(dstFilename, std::ios::binary | std::ios::trunc);
  if (!dstFile) {
    fmt::printf("Warning: Couldn't open file %s for writing.\n", dstFilename);
    return false;
  }
  dstFile << srcFile.rdbuf();
  std::streamsize dstSize = dstFile.tellp();
  if (srcSize == dstSize) {
    return true;
  }
  fmt::printf(
      "Warning: Only copied %lu bytes to %s, when %s is %lu bytes long.\n",
      dstSize,
      dstFilename,
      srcFilename,
      srcSize);
  return false;
}