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Ensures that the directory exists. If the directory structure does not exist, it is created. Like mkdir -p. Requires the --allow-read and --allow-write flag.

Test whether or not the given path exists by checking with the file system

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Take a set of command line arguments, optionally with a set of options, and return an object representing the flags found in the passed arguments.

Parses content as single YAML document.

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Serializes object as a YAML document.

Walks the file tree rooted at root, yielding each file or directory in the tree filtered according to the given options. The files are walked in lexical order, which makes the output deterministic but means that for very large directories walk() can be inefficient.