code: func matchLocalFileAndUnit(file string, su *schema.Unit) (bool, error) {
  	a := schema.MapSchemaUnitOptionsToUnitFile(su.Options)
  
  	_, err := os.Stat(file)
  	if err != nil {
  		return false, err
  	}
  
  	b, err := getUnitFromFile(file)
  	if err != nil {
  		return false, err
  	}
  
  	return unit.MatchUnitFiles(a, b), nil
  }
docs: // matchLocalFileAndUnit compares a file with a Unit
  // Returns true if the contents of the file matches the unit one, false
  // otherwise; and any error encountered.