compiln

Asset compiler middleware for Connect (node.js) that supports plugins.

compiln

Open-armed asset compiling for Node.js.

compiln uses a plugin-based architecture to allow YOU to choose your preprocssor stack, not me.

npm install compiln

compiln can be used as middleware. The middleware accepts 3 options:

  • buildOnStart - Compile assets when the server starts (defaults to "true")
  • buildOnRequest - Compile an asset every time it is requested (defaults to "false")
  • version - Version/fingerprint asset filename when compiled (defaults to "true")

To integrate:

var compiln = require('compiln');  
app.use(compiln.compile({"buildOnStart":true, "buildOnRequest":false, "version":true}));

What compiln will compile is dictated by what compiln plugins are being used. To compile CoffeeScript, for instance, simply install the complin CoffeeScript plugin:

npm install compiln-coffeescript

And tell compiln to use the plugin:

var compiln_coffeescript = require('compiln-coffeescript');  
compiln.use(compiln_coffeescript);

The use method accepts four total parameters:

  1. The plugin. (Required)
  2. The path of the root source folder for that asset type. (Optional)
  3. The path of the root destination folder for that asset type to be compiled to. (Optional)
  4. An object of options for the plugin. (Optional)

compiln can also be configured with a json file in the root directory named compiln.json:

{  
  "buildOnStart": true,  
  "buildOnRequest": false,  
  "version": true,  
  "use": [  
    {  
      "plugin": "compiln-coffeescript",  
      "source": "",  
      "destination": "/public"  
    }
  ],  
  "sources": [  
    "/scripts/main.js"  
  ]  
}

These settings will be overwritten by any settings made when integrating the middleware.

"sources" is an array of files that should be compiled by compiln (used by the CLI). Note that the source file name uses the compiled extension (.js) rather than the preprocessor extension (.coffee).

One of the benefits of compiln is that it is an open preprocessor compiling platform - it does not specify or dictate which preprocessors to use. If you would like to use compiln to compile an asset type for which a plugin does not exist, then you can easily write a new plugin.

compiln plugins require three methods to be defined. These methods should be made available by adding them to module.exports:

  • module.exports.detect - Should return an array of extensions. These are the extensions that the source files possess. The extensions should not include the dot (ie. coffee).
  • module.exports.ext - Should return a string of the desitination extension - the extension the source files will compile into. This should not include the dot (ie. js).
  • module.exports.compile - Accepts two parameters: file and options. file is the source file path. options will contain any options passed when the plugin is passed to compiln. This method should load the source file (ie. via fs.readFileSync) and return the compiled data.

If you'd rather not use compiln as middleware, compiln includes a CLI to allow you to precompile your assets.

To use, install compiln globally:

npm install -g compiln

To build the files:

compiln build

Use the -b argument to compile without versioning.

Note that the CLI requires compiln.json in order to utilize plugins and know which files should be compiled.

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  5. Submit
  6. Yay!

(The MIT License)

Copyright (c) 2012 Ian Lollar

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.