gulp-autowatch 
Information
| Package | gulp-autowatch |
| Description | Sugar for reusing a paths object to watch and run gulp tasks |
| Node Version | >= 0.9 |
Usage
Supports gulp 3.x and 4.x
var gulp = require('gulp');
var autowatch = require('gulp-autowatch');
// key = task name to run
// value = glob or array of globs to watch
var paths = {
vendor: './client/vendor/**/*',
coffee: './client/**/*.coffee',
jsx: './client/**/*.jsx',
stylus: './client/**/*.styl',
html: './client/**/*.html',
config: './server/config/*.json'
};
// assume all those tasks were defined
gulp.task('watch', function() {
autowatch(gulp, paths);
});