grunt-es-dependency-graph

Grunt task to generate a JSON file with the dependency tree in ES6 module files.

Getting Started

This plugin requires Grunt ~0.4.0

If you haven't used Grunt before, be sure to check out the Getting Started guide, as it explains how to create a Gruntfile as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:

npm install grunt-es-dependency-graph --save-dev

Once the plugin has been installed, it may be enabled inside your Gruntfile with this line of JavaScript:

grunt.loadNpmTasks('grunt-es-dependency-graph');

The depGraph task

Run this task with the grunt depGraph command. This will generate a JSON file with all the dependencies of each module specified as a task src.

Task targets, files and options may be specified according to the grunt Configuring tasks guide.

Usage example

Recommended

grunt.initConfig({
  depGraph: {
    production: {
      src: ['src/*.js'],
      dest: 'dist/dependencies.json'
    }
  }
});

Running this task will generate a file that looks like this:

{
  "module1.js": ["module2"]
}

Including named imports/exports

Alternatively you can get more information from all you source files by using the includeBindings option:

grunt.initConfig({
  depGraph: {
    production: {
      options: {
        includeBindings: true
      },
      src: ['src/*.js'],
      dest: 'dist/dependencies.json'
    }
  }
});

Chosing this option will generate an output file similar to:

{
  "module1.js": {
    "imports": {
      "module2": ["someImport", "anotherImport"]
    },
    "exports": ["somethingExported"]
  }
}

Normalizing module names

By default module names are left as they were in the source code and top level keys are the paths to each module file. However, this is not desirable for many tools that depend on this information. The moduleName option allows you to normalize those names to whatever pattern works in your project. It receives two parameters: the current path and the path to the parent module in the case of an import. Example:

grunt.initConfig({
  depGraph: {
    production: {
      options: {
        includeBindings: true,
        moduleName: function (importPath, modulePath) {
          return path.join(path.dirname(modulePath), importPath);
        }
      },
      src: ['src/*.js'],
      dest: 'dist/dependencies.json'
    }
  }
});

License

This software is free to use under the Yahoo Inc. BSD license. See the LICENSE file for license text and copyright information.

Contribute

See the CONTRIBUTING file for info.