Custom command listening does not work of the new version

[Hack-Jay]

const commander = require('commander');
const program = new commander.Command();

  program
        .name(Object.keys(pkg.bin)[0])
        .usage('<command> [options]')
        .version(pkg.version)
        .option('-d, --debug', 'debug mode', false)

   program.on('option:debug', function () {
      // this.debug is undefined
        if (this.debug) {
            process.env.LOG_LEVEL = 'verbose';
        } else {
            process.env.LOG_LEVEL = 'info';
        }
        log.level = process.env.LOG_LEVEL;
        log.verbose('verbose', 'debug mode')
    });

cli -d

Version 7.2.1 does not work, but version 6.2.1 does

[shadowspawn]

What do you mean by "does not work"? Is it that your listener does not correctly detect the state of the debug option?

There was a major change to the way option values are stored between Commander 6 and 7. By default, the option values are now stored separately and not as properties on the command object.

See Migration Tips: https://github.com/tj/commander.js/releases/tag/v7.0.0

Instead of program.debug, you can access the value as program.opts().debug.

[shadowspawn]

The PR making the change: #1409

[Hack-Jay]

Thank you. That solves my problem

program.opts().debug.