What format are the codes in the --countries build argument?

[wcedmisten]

https://github.com/headwaymaps/headway/blob/main/BUILD.md?plain=1#L54

Mentions including the countries used for the WOF import under the --countries arg.

https://github.com/pelias/wof-admin-lookup mentions 3-character country codes, but I wasn't able to tell if this should be used for the headway config as well, since the provided example is only 2 characters.

Is US a special case here? It would be great to clarify this explicitly in the docs.

Thanks!

[ellenhp]

Hi! That value is piped into the whosonfirst section of the pelias.json config via environment variable substitution. The parameter is documented here but the short answer is it looks like any two digit ISO 3166-1 country code, or a comma-delimited list of multiple two digit ISO 3166-1 country codes.

[wcedmisten]

I looked in two different pelias repos, but not that one, whoops!

I put up a documentation PR that I think would be useful, but feel free to close it if you disagree. Thanks!

[ellenhp]

Looks useful to me but I'm not the maintainer of this project anymore so it'll be up to @michaelkirk :)