isValid method

@override bool isValid(String path, String root)

Checking if file is valid or not if it was valid then return true else false

Implementation

@override
bool isValid(String path, String root) {
  if (directoryOnly) {
    // is directory or link
    if (FileSystemEntity.isDirectorySync(path)) {
      if (!includeHidden) {
        if (isHidden(path, root)) {
          return false;
        }
        return true;
      }
      return true;
      // is file
    } else
      return false;
  } else if (fileOnly) {
    // is directory or link
    if (FileSystemEntity.isDirectorySync(path)) {
      return false;
      // is file
    } else if (FileSystemEntity.isFileSync(path)) {
      if (checkExtension(path)) {
        if (!includeHidden) {
          if (isHidden(path, root)) {
            return false;
          }
        }

        return true;
      }
      return false;
    } else if (FileSystemEntity.isLinkSync(path)) {
      return true;
    } else {
      return false;
    }
  } else {
    // is directory or link
    if (path is Directory) {
      if (!includeHidden) {
        if (isHidden(path, root)) {
          return false;
        }
        return true;
      }
      return true;
      // is file
    } else if (path is File) {
      if (checkExtension(path)) {
        if (!includeHidden) {
          if (isHidden(path, root)) {
            return false;
          }
        }

        return true;
      }
      return false;
    } else if (path is Link) {
      return true;
    } else {
      return true;
    }
  }
}