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  • Hash : 9c26de0f
    Author : Edward Thomson
    Date : 2015-04-27T15:38:44

    config: lock the file for write before reading
    
    When writing a configuration file, we want to take a lock on the
    new file (eg, `config.lock`) before opening the configuration file
    (`config`) for reading so that we can prevent somebody from changing
    the contents underneath us.