gulp

var gulp = require("gulp");
var gutil = require("gulp-util");
var webpack = require("webpack");
var WebpackDevServer = require("webpack-dev-server");

gulp.task("webpack", function(callback) {
    // run webpack
    webpack({
        // configuration
    }, function(err, stats) {
        if(err) throw new gutil.PluginError("webpack", err);
        gutil.log("[webpack]", stats.toString({
            // output options
        }));
        callback();
    });
});

gulp.task("webpack-dev-server", function(callback) {
    // Start a webpack-dev-server
    var compiler = webpack({
        // configuration
    });

    new WebpackDevServer(compiler, {
        // server and middleware options
    }).listen(8080, "localhost", function(err) {
        if(err) throw new gutil.PluginError("webpack-dev-server", err);
        // Server listening
        gutil.log("[webpack-dev-server]", "http://localhost:8080/webpack-dev-server/index.html");

        // keep the server alive or continue?
        // callback();
    });
});