grunt-build-config

Make config file for browser at build time

Why I wrote this

For server-side applications like node.js, configuration per mode can be set with env variable(ex. NODE_ENV). But client-side applications cannot be easily configured in this way, because the apps run on the browser.

So I wrote this! This plugin generates configuration file for browser at 'build time'.

For example, when configuration file is given,

module.exports = {
  development: {
    api_host: "http://localhost:7000",
    env: process.env.NODE_ENV
  },
  production: {
    api_host: "http://my-api.server.com",
    env: process.env.NODE_ENV
  }
};

run buildconfig task,

$ grunt buildconfig:development

then a file which will run on browsers is generated.

default mode:

/* jshint ignore:start */
;(function () {

  'use strict';

  window.__BUILD_CONFIG__ =
  {
    "api_host": "http://localhost:7000",
    "env": "development"
  };

})();
/* jshint ignore:end */

browserify mode:

/* jshint ignore:start */
'use strict';
module.exports = {
  "api_host": "http://localhost:7000",
  "env": "development"
};
/* jshint ignore:end */

Installation

$ npm install grunt-build-config --save-dev

Buildconfig task

Run this task with the grunt buildconfig command.

Read a configuration table and generate a configuration file with given environment.

Options

srcFile

Type: String
Default: 'buildconfig'

Input file path.

srcFile should be an requirable path (ex. *.js, *.json) that returns an object with properties. task target will be used to choose value of which property will be used. The value of it will be given to the global variable.

destFile

Type: String
Default: 'out/buildconfig.js'

Output file path.

varName

Type: String
Default: '_BUILD_CONFIG_'

Name of the global variable which contains the configuration information.

mode

Type: String Default: 'default'

Form of output js file.
When mode is default, config file data is assigned to a global variable.
When mode is browserify, config file data will be exported in commonjs way.

Usage Examples

buildconfig: {
  options: {
    srcFile: 'test/fixtures/config.js',
    destFile: '.tmp/config.js',
    varName: '__CONFIG__',
    mode: 'default'
  }
},

Tests

To run the test suite, first install the dependencies, then run npm test:

$ npm install
$ npm test

License

MIT