karma-sass-preprocessor

Preprocessor to watch sass files changes and build css on the fly.

Installation

The easiest way is to keep karma-sass-preprocessor as a devDependency in your package.json.

{
  "devDependencies": {
    "karma": "~0.10",
    "karma-sass-preprocessor": "~0.0.1"
  }
}

You can simple do it by:

npm install karma-sass-preprocessor --save-dev

Configuration

Following code shows the example configuration...

// karma.conf.js
module.exports = function(config) {
  config.set({
    files: [
      {
        pattern: 'scss/**/*.scss',
        watched: true,
        included: false,
        served: true
      },
      'test/unit-sass.css'
    ],
    preprocessors: {
      'scss/**/*.scss': ['sass']
    },
    sassPreprocessor: {
      source: 'scss/*.scss',
      createSourceMaps: true,
      outputDir:  __dirname + '/test/',
      outputFile: 'unit-sass.css'
    }    
  });
};

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For more information on Karma see the homepage.