Question

我正在尝试使用gulp-usemin捆绑我的CSS和javascript文件进行制作。 gulp-usemin在我的CSS文件上工作正常，但没有输出与我的javascript文件相关的任何内容。有人可以向我指出我做错了吗？

我遇到类似于uglified files are not rewritten in html file using gulp-usemin的问题，但建议的解决方案无效。

供参考，我的node版本为v0.12.1，我的gulp版本如下：

"devDependencies": {
  "gulp": "^3.9.1",
  "gulp-minify-css": "^1.2.4",
  "gulp-rev": "^7.1.2",
  "gulp-uglify": "^2.0.0",
  "gulp-usemin": "^0.3.24"
}

index.html

<html>
<head>
  <meta charset="utf-8">

  <!-- build:css css/site.css -->
  <link rel="stylesheet" href="stylesheets/style.css" type="text/css" media="all" />
  <link rel="stylesheet" href="bower_components/font-awesome/css/font-awesome.min.css" type="text/css" media="all" />
  <!-- endbuild -->

  <!-- build:js js/site.js -->
  <script type="text/javascript" src='bower_components/gsap/src/minified/TweenMax.min.js'> </script>
  <script type="text/javascript" src='bower_components/d3/d3.js'> </script>
  <script type="text/javascript" src='bower_components/d3-tip/index.js'> </script>
  <script type="text/javascript" src='bower_components/moment/moment.js'> </script>
  <script type="text/javascript" src='chart.js'> </script>
  <!-- endbuild -->

</head>
<body>

</body>
</html>

gulp file

var gulp = require('gulp');
var uglify = require('gulp-uglify');
var usemin = require('gulp-usemin');
var minifyCss = require('gulp-minify-css');

gulp.task('build', function() {
  return gulp.src(['index.html'])
    .pipe(usemin({
      css: [minifyCss()],
      js: [uglify()]
    }))
  .pipe(gulp.dest('dist/'));
});

运行gulp build后，我生成了一个dist目录，如下所示

dist/
  css/
    site.css
  index.html

我生成的index.html是

<html>
<head>
  <meta charset="utf-8">

  <link rel="stylesheet" href="css/site.css" media="all"/>

</head>
<body>

</body>
</html>

有什么明显的东西我不见了吗？为什么css阻止有效但js阻止无效？

Answer 1

gulp-usemin使用的regex不允许在开始<script>和结束</script>标记之间留出任何空格。它也不允许type="text/javascript"属性。

有关匹配且不匹配的示例，请参阅this regex101 page。

所以这个：

<!-- build:js js/site.js -->
<script type="text/javascript" src='bower_components/gsap/src/minified/TweenMax.min.js'> </script>
<script type="text/javascript" src='bower_components/d3/d3.js'> </script>
<script type="text/javascript" src='bower_components/d3-tip/index.js'> </script>
<script type="text/javascript" src='bower_components/moment/moment.js'> </script>
<script type="text/javascript" src='chart.js'> </script>
<!-- endbuild -->

应该是这样的：

<!-- build:js js/site.js -->
<script src='bower_components/gsap/src/minified/TweenMax.min.js'></script>
<script src='bower_components/d3/d3.js'></script>
<script src='bower_components/d3-tip/index.js'></script>
<script src='bower_components/moment/moment.js'></script>
<script src='chart.js'></script>
<!-- endbuild -->

gulp-usemin不输出js文件

1 个答案: