Method readContent

src/Common/FileSystem.cpp:133–160

}

bool FileSystem::readContent(PathId fileId, std::string &content) {
  if (!fileId) return false;

  bool result = false;
  std::streamsize length = 0;
  if (filesize(fileId, &length)) {
    std::istream &strm = openForRead(fileId);
    if (strm.good()) {
      content.resize(length);

      std::streamsize offset = 0;
      while (!strm.eof() && (offset < length)) {
        strm.read(content.data() + offset, length - offset);
        offset += strm.gcount();
      }
      // Can't compare the offset to length for identifying success
      // Based on platform, filesize returns number of bytes when
      // the file is loaded in binary mode. But when reading the file
      // as text (as here is the case), the underlying stream automatically
      // strips '\r' (at least in the case of Windows) and thus the number
      // of actual bytes loaded are less than the number of bytes on disk.
      if (offset != length) content.resize(offset);
      result = (offset == length) || strm.eof();
    }
    close(strm);
  }
  return result;
}

bool FileSystem::writeContent(PathId fileId, std::string_view content,
                              bool onlyIfModified) {