Stop Gulp Task if Conditions are met

Question

I am trying to make it so if a --theme flag isn\'t specified it stops the gulp task and wondering the best way to do it in a DRY way.

I would like each individual task t

Answer 1

I think the easiest way would be to create a verifyArgs function which throws an error when the requirements aren't met:

function verifyArgs() {
  if(typeof(args.theme) == 'undefined' || args.theme === true) {
    throw Error(msg.noTheme);
  }
}

gulp.task('test', function() {
    verifyArgs();
    // run rest of task...
});

gulp.task('test-2', function() {
    verifyArgs();
    // run rest of task...
});

gulp.task('default', ['test-1', 'test-2']);