CtxBareClone makes a copy of this context.

CtxSetRewind sets "rewind" value to this context.

CtxSetRoot sets "root" value to this context.

ErrIsClient determines if an error thrown by osmapi is client error.

FindSubAreas looks for outputs of a sub-area.

NewContext is the utility to encapsulate pkg-scoped context values by preventing context key collision.

SubAreas constructs a GeoJSON output of an OpenStreetMap relation ID.

VerifyOutput makes sure that output files of a sub-area exist.