Not possible to specify jsonl (JSON lines) in the language parameter

[aliok]

I follow logs of a Kubernetes pod. Those logs are in jsonl format (https://jsonlines.org/), where each line is a valid and complete JSON entry.

I see jsonl support is added here: https://github.com/sharkdp/bat/pull/2539. However, it only uses jsonl format if a file name ends with .jsonl. In my case, I use a pipe like

kubectl logs -n my-pod --follow | bat --paging=never -l jsonl

which doesn't work: [bat error]: unknown syntax: 'jsonl'

Is it possible to add a separate language entry for jsonl?

[keith-hall]

Currently the .jsonl files are mapped to the JSON syntax so you should be able to just use -l json.

[aliok]

But in case of a pipe, the tool won't understand that the input is jsonl and not json, hence not doing the syntax highlighting properly.

[lmmx]

Think this was a misunderstanding—Keith was saying to pass -l json, not -l jsonl (which errors as shown in the issue description).

But in case of a pipe, the tool won't understand that the input is jsonl and not json, hence not doing the syntax highlighting properly.

The original issue was about passing -l jsonl as a flag (which doesn't exist), not about bat inferring file types. Keith wasn't suggesting bat auto-detects format over pipes, that's not a feature bat has.

Since -l json works for jsonl content, think this can be closed.

[keith-hall]

In general, bat can try to guess formats from the first line. There is currently no separate syntax highlighting for json vs jsonl, both are highlighted fine with the json syntax definition