gulpfile.js

var gulp = require('gulp');
var htmlmin = require('gulp-htmlmin');
var uglify = require('gulp-uglify');
var minifyInline = require('gulp-minify-inline');
var pump = require('pump');
var historyApiFallback = require('connect-history-api-fallback');
var fileinclude = require('gulp-file-include');
var browserSync = require('browser-sync').create();
var del = require('del');
var plumber = require('gulp-plumber');
var buildSpeaker = require('./src/build/profile.build.js');

gulp.task('compress', function() {
    return pump([
        gulp.src('src/*.js'),
        uglify(),
        gulp.dest('dist')
    ]);
});

gulp.task('clean', function () {
    return del([
        'dist/**',
        'src/html-compiled/**',
    ]);
});

gulp.task('fileinclude', ['clean'], function(callback) {
    return gulp.src(['src/html/*.html'])
      .pipe(plumber())
      .pipe(fileinclude({
        prefix: '@@',
        basepath: '@file'
      }))
      .pipe(gulp.dest('src/html-compiled/'))
      .pipe(browserSync.stream());
  });

gulp.task('minify', function() {
    return gulp.src('src/html/*.html')
        .pipe(htmlmin({ collapseWhitespace: true, removeComments: true }))
        .pipe(minifyInline())
        .pipe(gulp.dest('dist'));
});

gulp.task('minify-speaker', async function() {

    await buildSpeaker();

    return gulp.src('static/speaker/*.html')
        .pipe(htmlmin({ collapseWhitespace: true, removeComments: true }))
        .pipe(minifyInline())
        .pipe(gulp.dest('dist/speaker'));
});

gulp.task('copy', function() {
    return gulp.src([
            'src/_redirects',
            'src/*.xml',
            'src/*.txt',
            'src/*.pdf'
        ])
        .pipe(gulp.dest('dist'));
});

gulp.task('build', ['minify', 'minify-speaker', 'compress', 'copy']);

gulp.task('include-watch', ['fileinclude'], browserSync.reload);

gulp.task('watch', ['fileinclude', 'browser-sync'], function () {
    "use strict";
    gulp.watch("./src/html/**/*.html", ['include-watch']);
    gulp.watch("./src/*.json", ['include-watch']);
});

gulp.task('watch-dist', ['build'], function () {
    "use strict";
    gulp.watch("./dist/*.html", browserSync.reload);
});

function simpleURLRewrite(req, res, next) {
    if (req.url === '/') {
        req.url = "/index";
    }
    if (req.url.indexOf('.') === -1) {
        req.url += ".html";
    }
    return next();
}

// Static server
gulp.task('browser-sync', ['fileinclude'], function() {
    browserSync.init({
        server: {
            baseDir: "./src/html-compiled/",
        },
        middleware: simpleURLRewrite,
    });
});

gulp.task('browser-sync-dist', ['build'], function() {
    browserSync.init({
        server: {
            baseDir: "./dist/",
        },
        middleware: simpleURLRewrite,
    });
});

gulp.task('default', ['watch']);

gulp.task('dist', ['watch-dist', 'browser-sync-dist']);