CidBaseDefined returns true if the `cid-base` option is specified on the command line.

CidEncoderFromPath creates a new encoder that is influenced from the encoded Cid in a Path.

GetApi extracts CoreAPI instance from the environment.

GetCidEncoder processes the `cid-base` and `output-cidv1` options and returns a encoder to use based on those parameters.

GetConfig extracts the config from the environment.

GetConfigRoot extracts the config root from the environment.

GetFileArg returns the next file from the directory or an error.

GetLowLevelCidEncoder is like GetCidEncoder but meant to be used by lower level commands.

GetNode extracts the node from the environment.