Check if a certain debug flag is enabled. 

3rdeden

enabled

 * Checks if a given namespace is allowed by the environment variables.

 * @param {String} name namespace that should be included.

module.exports = function enabled(name, variables) {

  variables = variables || ['diagnostics', 'debug'];

    if ((variable = envy[variables[i]])) break;

    variable = variables[i].replace('*', '.*?');

      if (!(new RegExp('^'+ variable.substr(1) +'$')).test(name)) {

      if ((new RegExp('^'+ variable.substr(1) +'$')).test(name)) {

    if ((new RegExp('^'+ variable +'$')).test(name)) {

  "description": "Check if a certain debug flag is enabled.",

    "100%": "istanbul check-coverage --statements 100 --functions 100 --lines 100 --branches 100",

    "coverage": "istanbul cover ./node_modules/.bin/_mocha -- test.js",

    "test-travis": "istanbul cover node_modules/.bin/_mocha --report lcovonly -- test.js"

    "url": "git://github.com/bigpipe/enabled.git"

[![From bigpipe.io][from]](http://bigpipe.io)[![Version npm][version]](http://browsenpm.org/package/enabled)[![Build Status][build]](https://travis-ci.org/bigpipe/enabled)[![Dependencies][david]](https://david-dm.org/bigpipe/enabled)[![Coverage Status][cover]](https://coveralls.io/r/bigpipe/enabled?branch=master)

[from]: https://img.shields.io/badge/from-bigpipe.io-9d8dff.svg?style=flat-square

[version]: http://img.shields.io/npm/v/enabled.svg?style=flat-square

[build]: http://img.shields.io/travis/bigpipe/enabled/master.svg?style=flat-square

[david]: https://img.shields.io/david/bigpipe/enabled.svg?style=flat-square

[cover]: http://img.shields.io/coveralls/bigpipe/enabled/master.svg?style=flat-square

Enabled is a small utility that can check if certain namespace are enabled by

environment variables which are automatically transformed to regular expressions

The module is release in the public npm registry and can be used in browsers and

servers as it uses plain ol ES3 to make the magic work.

First of all make sure you've required the module using:

The returned `enabled` function accepts 2 arguments.

1. `name` **string**, The namespace that should match.

2. `variables` **array**, **optional**, Names of the `env` variable that it

   should use for matching. If no argument is supplied it will default to

process.env.DEBUG = 'foobar,-shizzle,nizzle';

  it('uses the `debug` env', function () {

    assume(enabled('bigpipe')).to.be.true();

    assume(enabled('false')).to.be.false();

  it('uses the `diagnostics` env', function () {

    assume(enabled('bro-fist')).to.be.true();

    assume(enabled('ro-fist')).to.be.false();

  it('is disabled by default', function () {

    assume(enabled('bigpipe')).to.be.false();

  it('can ignore loggers using a -', function () {

    process.env.DEBUG = 'bigpipe,-primus,sack';

    process.env.DEBUG = 'bigpipe,-primus,sack,-other';

    assume(enabled('sack')).to.be.true();

    assume(enabled('primus')).to.be.false();

    assume(enabled('other')).to.be.false();

    assume(enabled('unknown')).to.be.false();

  it('supports multiple ranges', function () {

    process.env.DEBUG = 'bigpipe*,primus*';

    assume(enabled('bigpipe:')).to.be.true();

    assume(enabled('bigpipes')).to.be.true();

    assume(enabled('primus:')).to.be.true();

    assume(enabled('primush')).to.be.true();

		@@ -33,4 +33,4 @@ 'use strict';
		if ('-' === variable.charAt(0)) {
		if (!(new RegExp('^'+ variable.substr(1) +'$')).test(name)) {
		return true;
		if ((new RegExp('^'+ variable.substr(1) +'$')).test(name)) {
		return false;
		}
		@@ -37,0 +37,0 @@

		{
		"name": "enabled",
		"version": "1.0.1",
		"version": "1.0.2",
		"description": "Check if a certain debug flag is enabled.",
		@@ -13,2 +13,6 @@ "main": "index.js",
		},
		"repository": {
		"type": "git",
		"url": "git://github.com/bigpipe/enabled.git"
		},
		"keywords": [
		@@ -29,7 +33,7 @@ "enabled",
		"devDependencies": {
		"assume": "1.2.x",
		"istanbul": "0.3.x",
		"mocha": "2.2.x",
		"pre-commit": "1.0.x"
		"assume": "1.3.x",
		"istanbul": "0.4.x",
		"mocha": "2.3.x",
		"pre-commit": "1.1.x"
		}
		}

		@@ -44,4 +44,9 @@ # enabled
		```js
		process.env.DEBUG = 'foob';
		process.env.DEBUG = 'foo';
		enabled('foo') // true;
		enabled('bar') // false;

		// can use wildcards
		process.env.DEBUG = 'foob*';

		enabled('foobar') // true;
		@@ -48,0 +53,0 @@ enabled('barfoo') // false;

Fixed alerts

Improved metrics

		@@ -45,3 +45,3 @@ describe('enabled', function () {
		it('can ignore loggers using a -', function () {
		process.env.DEBUG = 'bigpipe,-primus,sack';
		process.env.DEBUG = 'bigpipe,-primus,sack,-other';

		@@ -51,2 +51,4 @@ assume(enabled('bigpipe')).to.be.true();
		assume(enabled('primus')).to.be.false();
		assume(enabled('other')).to.be.false();
		assume(enabled('unknown')).to.be.false();
		});
		@@ -53,0 +55,0 @@