grunt-preprocessor

Grunt task to preprocess JS files using preprocessor.

Getting Started

Install this grunt plugin next to your project's grunt.js gruntfile with: npm install grunt-preprocessor.

Then add this line to your project's grunt.js gruntfile:

grunt.loadNpmTasks("grunt-preprocessor");

Documentation

Options

root default: .

Include path

Options

separator

Type: String Default: grunt.util.linefeed

Multiple files will be joined on this string. If you're processing concatenated JavaScript files with a minifier, you may need to use a semicolon ';' as the separator.

context

Preprocessor context.

mergeEnv

Merge preprocessor context with the process environment variables. Default true.

Example #1

grunt.initConfig({
  preprocessor: {
    main: {
      options: {
        root: "app/includes",
        context: {
          DEBUG: true
        }
      },
      files: {
        "build/main.js": "app/main.js"
      }
    }
  }
});

Example #2

Concat multiple files and process them

grunt.initConfig({
  preprocessor: {
    main: {
      options: {
        root: "app/includes",
        context: {
          DEBUG: true
        }
      },
      files: {
        "build/main.js": "app/main.js",
        "build/extras.js": ["app/libs.js", "app/additional.js"],
      }
    }
  }
});

Contributing

In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality. Lint and test your code using grunt.

Release History

• 01/02/2016 - 0.6.1: ESLint remake
• 01/02/2016 - 0.5.1: Based on https://github.com/nashdot/Preprocessor.js
• 11/02/2013 - 0.4.0: Update grunt-contrib-jshint / Remove grunt.util._ (@shinnn)
• 07/02/2013 - 0.3.0: Support multiple targets and globbing (@rvock)
• 20/08/2013 - 0.2.0: Introduce context with process.env merge.
• 26/07/2013 - 0.1.0: Initial release.

License

Copyright (c) 2014 Stanislav Lesnikov and contributors Licensed under the MIT license.