https://github.com/koajs/bundle

Generic asset pipeline with caching, etags, minification, gzipping and sourcemaps.
https://github.com/koajs/bundle

Last synced: 2 months ago
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Generic asset pipeline with caching, etags, minification, gzipping and sourcemaps.

• Host: GitHub
• URL: https://github.com/koajs/bundle
• Owner: koajs
• Created: 2015-03-08T04:39:53.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2023-12-03T14:05:16.000Z (about 1 year ago)
• Last Synced: 2024-04-14T13:08:39.077Z (8 months ago)
• Language: JavaScript
• Homepage:
• Size: 3.42 MB
• Stars: 36
• Watchers: 9
• Forks: 3
• Open Issues: 8
• Metadata Files:
  • Readme: Readme.md
  • Changelog: History.md

Awesome Lists containing this project

• awesome-koa - bundle - Generic asset pipeline with caching, etags, minification, gzipping and sourcemaps. (Middleware)

README

        

# koa-bundle

  Generic asset pipeline with caching, etags, minification, gzipping and sourcemaps.

  The child of [node-enchilada](https://github.com/defunctzombie/node-enchilada) and [static-cache](https://github.com/koajs/static-cache).

## Examples

- Browserify (with a callback and options)

```js

var bundle = Bundle({ debug: true, root: __dirname) }, function(file, fn) {

  Browserify({ debug: file.debug })

    .add(file.path)

    .transform(require('babelify'))

    .bundle(fn);

}))

app.use(bundle('app.js'));

```

- Duo (using generators)

```js

var bundle = Bundle(function *(file) {

  return yield Duo(file.root)

    .entry(file.path)

    .use(require('duo-sass')())

    .run();

})

app.use(bundle('app.css'));

```

- Gulp (using currying and globbing)

```js

var bundle = Bundler({ root: __dirname }, function(file, fn) {

  var gulp = Gulp.src(file.path, { cwd: file.root });

  if ('styl' == file.type) {

    gulp.pipe(styl())

      .on('error', fn);

  }

  gulp.pipe(myth())

    .on('error', fn)

  if ('production' == process.env.NODE_ENV) {

    gulp

      .pipe(csso())

      .on('error', fn);

  }

  gulp.on('end', fn);

});

// ... in another file, single middleware

app.use(bundle());

// multiple endpoints

bundle('app.styl');

bundle('app.js');

```

## Installation

```js

npm install koa-bundle

```

## API

#### `bundle(settings, handler) => bundler([path]) => middleware`

#### `bundle(handler)(glob) => bundler([path]) => middleware`

Create a bundler with an optional set of `settings` and a `handler`.

A `handler` can be a synchronous function, asynchronous function, generator or promise. The handler passes a `File` object that has the following properties:

```js

var File = {

  type: "js",

  src: "... JS ...",

  path: "dashboard.js",

  root: "/Users/Matt/Projects/..."

  minify: true,

  debug: false,

  cache: true,

  gzip: true,

}

```

---

The available `settings` are:

- `debug`: enables sourcemaps

- `minify`: minify JS and CSS

- `cache`: cache responses across requests and add etags

- `gzip`: gzip the response if it's supported

The default settings depend on the environment (`NODE_ENV`):

- Production:

  - `debug`: false

  - `minify`: true

  - `cache`: true

  - `gzip`: true

- Development:

  - `debug`: true

  - `minify`: false

  - `cache`: false

  - `gzip`: false

---

The bundler returns a function that you can then pass a `path` into:

```js

var bundle = Bundler(settings, handler);

app.use(bundle('app.js'));

```

The `path` is relative to `settings.root` or `process.cwd()`. The `script[src]` and `link[href]` is relative the `root` specified.

## TODO

- Warmup cache in production

- More examples

- Testing

## Credits

- [node-enchilada](https://github.com/defunctzombie/node-enchilada) and [browserify-middleware](https://github.com/forbeslindesay/browserify-middleware) for some ideas and general design.

- [static-cache](https://github.com/koajs/static-cache) for the caching, etagging and gzipping.

- sponsored by [Lapwing Labs](http://lapwinglabs.com).

## License

MIT

Copyright (c) 2015 Matthew Mueller <[email protected]>