weber

1.0.6 • Public • Published

Introduction

Weber (a fork of Hem) compiles, concatenates and minifies scripts, stylesheets and templates on-the-fly.

Weber improves upon Hem by providing more flexibility in terms of input sources and multiple build targets. If Hem is good enough for you then stick with it. Otherwise take a look at what Weber can offer you below.

Installation

npm install -g weber

Usage

Weber runs in 3 modes. Let's look at the server mode first...

Server mode

Once you have Weber configured you can launch server mode by typing the following in the root of your project:

$ weber server

This will launch a simple Strata server running on http://localhost:9294. This mode allows you to quickly test out your scripts, stylesheets and templates and rapidly iterate with them.

But let's configure Weber first. Goto the root of your project folder and type:

$ weber init

You will now find a file called weber.json:

{
    "/" : "./public_assets",

    "/css/app.css" : [
        "./css/reset.css",
        "./css/main.styl"
    ],

    "/css/test.css" : {
        "minify": false,
        "input" : [
            "./css/test"
        ]
    },

    "/js/app.js" : {
        "build" : "./app.js",
        "input" : {
            "dependency" : [ "es5-shimify" ],
            "lib" : [ "./lib/jquery.js" ],
            "module": [ "./coffee" ]
        }
    },

    "/js/test.js" : {
        "minify": false,
        "input": [
            "./test/testbase.js",
            "./test/test.coffee"
        ]
    }
}

The above configuration is put there by Weber just to show you what configuration options are available.

The first key-value pair tells Weber which folder to use as the document root when running in server mode. In this case Weber will expect an index.html file inside the ./public_assets folder to serve up when the browser navigates to http://localhost:9294. If this setting is ommitted then Weber will assume the document root to be the folder containing weber.json. By the way, Weber can be told to listen on a different port by adding a port: <portnum key in the config file above.

The remaining key-value pairs in the config file tell Weber what to do when the browser visits the relative URLs /css/app.css, /css/test.css, /js/app.js and /js/test.js respectively. When this happens Weber dynamically builds and outputs these files using the information provided in the config file. Here is what it does for each file:

  • /css/app.css - concatenates reset.css with main.styl and then minifies the final result.

  • /css/test.css - concatenates all CSS and Stylus files in ./css/test.

  • /js/apps.js - concatenates the npm module es5-shimify with ./lib/jquery.js with all the modularized versions of all the code in ./coffee and then minifies the final result.

  • /js/test.js - concatenates modularized versions of ./test/testbase.js and ./test/test.coffee.

Two points to note:

  • It automatically compiles coffee, stylus and other files into their JS and CSS equivalents when needed.
  • To modularize means to wrap the code such that it thinks of itself and behaves like a CommonJS module, i.e. require, exports, module are available.

The example folder in the Weber source code contains a fully working example app with the above configuration file.

Build mode

Once you're ready to actually build the static output files you can run:

$ weber build

Weber automatically decided where to place the built output file based on the config. For example, if we have:

{
    "/" : "./public_assets",
    "/js/app.js" : [ "./coffee" ]
}

Then the output file for /js/app.js will be at ./public_assets/js/app.js. But we can override this path by using the build key as follows:

{
    "/" : "./public_assets",
    "/js/app.js" : {
        "build" : [ "./built_app.js" ]
        "input" : [ "./coffee" ]
    }
}

Now Weber will build the output file at ./built_app.js.

Watch mode

In this mode Weber will build the static output files and then watch the inputs for changes, rebuilding the output files as and when necessary:

$ weber watch

Supported file types

At present Weber is able to handle the following file extensions:

Future improvements and contributions

I welcome all feedback contributions to making Weber better.

Some ideas I currently have for the future:

  • Unit/functional testing
  • Allow for pluggable outputs and inputs. For example, if you want to build Weber to build Jade templates into HTML you should be able to tell it how to do this in the weber.json config.

License

See [https://raw.github.com/hiddentao/weber/master/LICENSE]

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  • hiddentao