Release json-formatter as Docker image

[aslakhellesoy]

This will remove some of the portability problems using the standalone formatter

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[iomedico-beyer]

I just created an image myself and documented it here:
https://stackoverflow.com/a/72868618/1948252

[aurelien-reeves]

Hey @iomedico-beyer

Nice to see that you figured out a simple solution by yourself.

I would like to ask: why do you need the cucumber-json-formatter? I understood that you need it to convert NDJSON messages into the "legacy" JSON format.

What don't you generate the JSON directly from cucumber itself?

I know, at some point we have deprecated the JSON formatter. But it is not the case anymore, you will be able to rely on it in future version, as usual

[iomedico-beyer]

Hi @aurelien-reeves

I am using @badeball/cypress-cucumber-preprocessor which only can output NDJSON and needs me to use that binary to convert it into JSON.

@badeball wrote: “I've refactored my implementation to output messages, because that was significantly easier implementation wise”.
So it’s not Cucumber writing those NDJSON messages here.

[aurelien-reeves]

Thanks for the info 👌