sp-dev-fx-webparts/samples/react-pages-hierarchy/gulpfile.js

'use strict';

const gulp = require('gulp');
const build = require('@microsoft/sp-build-web');

build.addSuppression(`Warning - [sass] The local CSS class 'ms-Grid' is not camelCase and will not be type-safe.`);

const path = require('path');
build.configureWebpack.mergeConfig({
    additionalConfiguration: (generatedConfiguration) => {
        if (!generatedConfiguration.resolve.alias) {
            generatedConfiguration.resolve.alias = {};
        }

        // root src folder
        generatedConfiguration.resolve.alias['@src'] = path.resolve(__dirname, 'lib')

        return generatedConfiguration;
    }
});

var getTasks = build.rig.getTasks;
build.rig.getTasks = function () {
  var result = getTasks.call(build.rig);

  result.set('serve', result.get('serve-deprecated'));

  return result;
};

// disable tslint
build.tslintCmd.enabled = false;

build.initialize(require('gulp'));

var runSequence = require('run-sequence');
gulp.task('package', function (cb) {
    runSequence('clean', 'build', 'bundle', 'package-solution', cb);
});