Errors thrown via SfdxError are not appearing: sfdx xyz:myplugin:set -u alias -p=xyz

[venkatpolisetti]

Reporting a bug

Errors thrown via SfdxError from the plugin are not appearing when the plugin is invoked via $sfdx xyz:myplugin:set -u myalias -p=xyz

but when invoked through ./bin/run, it would display the error messages.

What is the current behavior?

When run from sfdx, plugin does not display exception message. It simply return without displaying the exception message. $ sfdx xyz:myplugin:set -u venkattemp -o=campaign -profiles="*" Validating flags... $

Where as when I run it from the ./bin in the plugin directory using run, it would work as expected. $ ./bin/run xyz:myplugin:set -u venkattemp -o=campaign -profiles="*" Validating flags... done ERROR running set: --profiles and --filter must be specified when --sobjects is used $

Please mention your Salesforce CLI and OS version. OS: Windows 7 $ sfdx --version sfdx-cli/6.34.0-6fec0d751a (windows-x64) node-v8.9.4

Is there something that I am missing here, a setting or something?

[venkatpolisetti]

Looks like if you are throwing SfdxError after ux.startSpinner, the exception is eaten away by the spinner.

The exception is raised after the startSpinner call in my code.

this.ux.startSpinner('Validating flags');
if (this.flags.datafile && this.flags.profiles == undefined) {
    throw new core.SfdxError('--profiles must be specified when --datafile is used');
}

It started showing the exception message only after I commented startSpinner line.

I still do not understand why it would work with ./bin/run though.

[venkatpolisetti]

Also calling this.ux.stopSpinner() before throwing an exception also worked.