How to detemine if jekyll running locally or in production site? -

there config param in jekyll called production_url. can't find information on how use it.

ideally able generate permalinks local url when being run serve param , production url when run build param.

how that?

jekyll serve call jekyll build, can't use 2 way output different url schemes.

i built jekyll plugin liquid filter , 1 user defined variable in _config.yml called mode.

you set mode development or production , plugin takes care of rest in templates.

so in template have url such as:

<img src="{{ '/img/dog.jpg' | to_absurl }}" />

when mode development, upon jekyll build/serve relative url:

<img src="/img/dog.jpg" />

locally accessed as: http://0.0.0.0:4000/img/dog.jpg

when mode production, upon jekyll build/serve absolute url:

<img src="http://www.domain.tld/img/dog.jpg" />

the http://www.domain.tld have set in _config.yml -> url variable.

you can see more details on plugin here:

KHS