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Pony metadata collection files are used by ponysay
to by just reading
one file per directory determine all pony files metadata and determine which
ponies will pass the --restrict option when ponies are randomly selected.
A metadata colletion file’s content a list, of pony files with and their corresponding metadata as a map from tag name to tag value set, serialised with Python’s cPickle module.
Running ponysay-tool --metadata PONY-DIR
will generate the file metadata
with the serialised information. For use by the installer, the files to include can be
explicity declared appending their basename to the command.