[web] Update packages, use TS 2.4

web/apps/gulp-common.js

 /*
   Copyright 2016 The LUCI Authors. All rights reserved.
   Use of this source code is governed under the Apache License, Version 2.0
   that can be found in the LICENSE file.
 
   This document has been largely derived from the Polymer Starter Kit:
   https://github.com/PolymerElements/polymer-starter-kit
 */
 
 'use strict';
 
 var path = require('path');
 var argv = require('yargs').argv;
 
 var exports = module.exports = {}
 exports.base = path.join(__dirname, '..');
 exports.out = (argv.out || exports.base);
 exports.plugins = require('gulp-load-plugins')({
   config: path.join(exports.base, 'package.json'),
 });
 
 // Include Gulp & tools we'll use
 var $ = exports.plugins;
 var browserSync = require('browser-sync');
+var cleanCSS = require('gulp-clean-css');
 var debug = require('gulp-debug');
 var del = require('del');
 var format = require('gulp-clang-format');
 var fs = require('fs');
 var glob = require('glob-all');
 var gulpIf = require('gulp-if');
+var htmlmin = require('gulp-htmlmin');
 var historyApiFallback = require('connect-history-api-fallback');
 var hyd = require('hydrolysis');
 var merge = require('merge-stream');
 var reload = browserSync.reload;
 var runSequence = require('run-sequence');
 var ts = require('gulp-typescript');
 var sourcemaps = require('gulp-sourcemaps');
 var tslint = require('gulp-tslint');
 
 
@@ skipping 93 matching lines @@
       return path.join.apply(null, parts);
     };
   };
 
   var styleTask = function(stylesPath, srcs) {
     return gulp.src(srcs.map(function(src) {
         return path.join(stylesPath, src);
       }))
       .pipe($.autoprefixer(AUTOPREFIXER_BROWSERS))
       .pipe(gulp.dest('.tmp/' + stylesPath))
-      .pipe($.minifyCss())
+      .pipe(cleanCSS())
       .pipe(gulp.dest(layout.dist(stylesPath)))
       .pipe($.size({title: stylesPath}));
   };
 
   var imageOptimizeTask = function(src, dest) {
     return gulp.src(src)
       .pipe($.imagemin({
         progressive: true,
         interlaced: true
       }))
       .pipe(gulp.dest(dest))
       .pipe($.size({title: 'images'}));
   };
 
   var optimizeHtmlTask = function(src, dest) {
     var assets = $.useref.assets({
       searchPath: ['.tmp', config.dir]
     });
 
     return gulp.src(src)
       .pipe(assets)
       // Concatenate and minify JavaScript
       .pipe($.if('*.js', $.uglify({
         preserveComments: 'some'
       })))
       // Concatenate and minify styles
       // In case you are still using useref build blocks
-      .pipe($.if('*.css', $.minifyCss()))
+      .pipe($.if('*.css', cleanCSS()))
       .pipe(assets.restore())
       .pipe($.useref())
       // Minify any HTML
-      .pipe($.if('*.html', $.minifyHtml({
-        quotes: true,
-        empty: true,
-        spare: true
+      .pipe($.if('*.html', htmlmin({
+        remoteAttributeQuotes: false,
+        remoteEmptyAttributes: false,
+        remoteRedundantAttributes: false,
       })))
       // Output files
       .pipe(gulp.dest(dest))
       .pipe($.size({
         title: 'html'
       }));
   };
 
   // Transpiles "inc/*/*.ts" and deposits the result alongside their source
   // "ts" files.
@@ skipping 169 matching lines @@
   });
 
   // Install common targets.
   exports.setup_common(gulp);
 };
 
 // Load custom tasks from the `tasks` directory
 try {
   require('require-dir')('tasks');
 } catch (err) {}