使用gulp-usemin不会将丑化的文件重写为HTML文件

我正面临gulp-usemin插件的问题。usemin任务运行时，将css和js文件进行拼接和丑化，但生成的丑化js文件不会重写为html文件。我正在分享我的gulpfile.js和index.html代码。

index.html 之前转换

<html>
    <head>
        <!-- build:css build/css -->
        <link rel="stylesheet" href="css/blue.css">
        <link rel="stylesheet" href="css/green.css">
        <link rel="stylesheet" href="css/orange.css">
        <!-- endbuild -->
        <!-- build:js build/js1 -->
        <script src="js/add.js"></script>
        <script src="js/sub.js"></script>
        <script src="js/mul.js"></script>
        <!-- endbuild -->
    </head>
    <body>
        <p class="blue" id="sum"></p>
        <p class="green" id="diff"></p>
        <p class="orange" id="mul"></p>
        <img src="images/1.jpg" width="304" height="228">
        <img src="images/2.jpg" width="304" height="228">
        <script>
        document.getElementById('sum').innerHTML=add(4,4);
        document.getElementById('diff').innerHTML=sub(4,4);
        document.getElementById('mul').innerHTML=mul(4,4);
        </script>
    </body>
</html>

gulpfile.js

var usemin = require('gulp-usemin');
var gulp = require('gulp');
var uglify = require('gulp-uglify');
var minifyHtml = require('gulp-minify-html');
var minifyCss = require('gulp-minify-css');
var jshint = require('gulp-jshint');
var concat = require('gulp-concat');
var rev = require('gulp-rev'),
    notify = require('gulp-notify');
gulp.task('usemin', function() {
  gulp.src('./*.html')
    .pipe(usemin({
      css: [minifyCss(), 'concat'],
      html: [minifyHtml({empty: true})],
      js: [uglify()]
    }))
    .pipe(gulp.dest('build/'));
});

index.html 后转换

//you can see that build/css is generated but build/js is not generated
<html>
    <head>
    <link rel="stylesheet" href="build/css"/>
    </head>
    <body>
    <p class="blue" id="sum"></p>
    <p class="green" id="diff"></p>
    <p class="orange" id="mul"></p>
    <img src="images/1.jpg" width="304" height="228">
    <img src="images/2.jpg" width="304" height="228">
    <script>
    document.getElementById('sum').innerHTML=add(4,4);
    document.getElementById('diff').innerHTML=sub(4,4);
    document.getElementById('mul').innerHTML=mul(4,4);
    </script>
    </body>
</html>

帮助我解决这个问题。

首先，您在js usemin呼叫中缺少rev，将task更改为:

gulp.task('usemin', function() {
  gulp.src('./*.html')
    .pipe(usemin({
      css: [minifyCss(), 'concat'],
      html: [minifyHtml({empty: true})],
      js: [uglify(), rev()]
    }))
    .pipe(gulp.dest('build/'));
  });

同样，gulp-usemin中blocks的最后一个参数表示file的路径。您应该精确扩展名，以免与目录

混淆。

<!-- build:css build/style.css -->
<!-- build:js build/js1.js -->

为清楚起见，您还应该在两个不同的块之间放置一个换行符。

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