UX tables get displayed along with json output on usage of --json flag

[brunda-copado]

I've built a command and Im displaying some data using the table component off Ux (from the library @salesforce/sf-plugins-core), but when I use the --json flag, the json response is output after the table. I'd expect only the json result and not the table to be printed.

To Reproduce
Steps to reproduce the behavior:

1. Create a command with a Ux table printing some data on the stdout.
2. use the command with the -- json flag

Expected behavior

I would expect the output to be just the json data, based on what Im returning in the command class instead of the table + json output.

Additional context
Versions used -
@oclif/core - 2.15.0
@salesforce/sf-plugins-core - 4.0.0

[mdonnalley]

The ux module is not aware of the json flag and so you have to handle it yourself. The Command class has a jsonEnabled() method on it that will return true is json is enabled (either by the flag or env var). I would use that to determine if ux.table should be called.

if (!this.jsonEnabled()) ux.table()

[brunda-copado]

Thanks a bunch!