Support JSON

[SchulzeStTSI]

Hi:)

The groovy file format is a bit strange to config and to generate automatically, because 50% yaml and 50% json. Can you support either full yaml or full json instead of the exotic groovy?

regards

[netomi]

its not groovy format, but jsonnet which is a templating language for json.

However, there are ideas to provide a different configuration format, see #17.

jsonnet is a bit complex but otoh also very powerful, so having two ways to do the configuration is useful imho.