gulp-assets-plus

md5/sha256 the static files(eg. javascript, style, image files) and change the hash strings in the quoted file. Forked from gulp-md5-assets.

<link rel="stylesheet" href="./css/main.css" />
=>
<link rel="stylesheet" href="./css/main.css?56318d54ed" />

.gf {
  background-image: url(./img/goldenfinger.jpg);
}
=>
.gf {
  background-image: url(./img/goldenfinger.jpg?56318d54ed);
}

Usage

First, install gulp-assets-plus as a development dependency:

npm i --save-dev gulp-assets-plus

Then, add the code below to your gulpfile.js.

Example 1: Md5 all css files in the src folder and change these css names in the quoted html.

var hashAssets = require("gulp-assets-plus");

gulp.src("./src/*.css")
  .pipe(hashAssets('./output/*.html'))
  .pipe(gulp.dest("./dist")
);

Example 2: First, optimize all images in the img folder including all sub folders; then sha256 all these images limited to a length of 6 and change these images'names in the quoted css files.

gulp.task('img' ,function() {
  var imgSrc = './static/img/**';
  var quoteSrc = './output/static/css/**/*.css',
  var imgDst = './output/static/img';

  return gulp.src(imgSrc)
    .pipe(imagemin())
    .pipe(hashAssets(quoteSrc, {
      size: 6,
      algorithm: 'sha256'
    }))
    .pipe(gulp.dest(imgDst));
});

note

the directory of the md5ed files in the imgDst folder is the same as that of original files in the imgSrc folder; and css files can refer the image file with the same name in different folder rightly.

API

hashAssets(file, opt)

file

Type: String

Default: null

Optionnal: the file need to replace the file name of the hashed files. Dir is also supported.

Example:

gulp.src('static/js/*')
  .pipe(hashAssets('./output/html/*.html'), {size: 6})
  .pipe(gulp.dest('./output')
);

The sample above will append the md5 hash(length: 6) to each of the file in the static/js folder then repalce the link file name in the output/html/ using md5ed file name; at last store all of that into the output folder.

opt

opt.size

Type: String

Default: 7

Optionnal: you can pass the size to limit the size of the hash that is appended.

opt.assetsPath

Type: String

Default: null

Optionnal: you can declare the assets folder manually when the assets path is different to the quoted source.

Example:

<link rel="stylesheet" href="http://127.0.0.1/css/main.css?56318d54ed" />

gulp.src('dist/css/**/*.css')
  .pipe(hashAssets('./output/html/*.html'), {
    assetsPath: 'dist/'
  })
  .pipe(gulp.dest('./output')
);

opt.quotedPath

Type: String

Default: null

Optionnal: you can declare the quotes folder manually when quoted source is diffrent from actual Path (rewritten).

Example:

<link rel="stylesheet" href="http://127.0.0.1/rewrite_to_css/main.css?56318d54ed" />

gulp.src('css/**/*.css')
  .pipe(hashAssets('./output/html/*.html'), {
    quotedPath: 'rewrite_to_css/'
  })
);

opt.whitelist

Type: String | Array

Default: null

Optionnal: you can pass a whitelist array to filter the files you don't want to add the hash. For example: use ['base', 'jquery'] will ignore all the files which contains 'base' or 'jquery' in the filename, it's useful when you don't want to add hash to some file.

opt.ignore

Type: String | Array

Default: null

Optionnal: you can pass an ignore string/array to filter the files with this hash. For example: use ['debug'] or 'debug' will ignore these files when you quote them like <link rel="stylesheet" href="./css/main.css?debug" />. It's useful when you change some file frequently during development, but don't forget to remove that string before publish.

opt.algorithm

Type: String

Default: 'md5'

Optionnal: generate hash digests using the given algorithm. On recent releases of OpenSSL, openssl list-message-digest-algorithms will display the available digest algorithms. See more at Node.js Documentation.

License

MIT License