From 9fee69fe4870649b3c2118ad731db73c2b48282a Mon Sep 17 00:00:00 2001
From: Jan Niklas Hasse <jhasse@gmail.com>
Date: Thu, 22 Oct 2015 13:18:01 +0200
Subject: [PATCH] Check for CLICOLOR and CLICOLOR_FORCE. Fixes #31 and #32.

---
 index.js | 14 ++++++++++++++
 test.js  | 21 +++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/index.js b/index.js
index 113040d..ad4de6b 100644
--- a/index.js
+++ b/index.js
@@ -38,6 +38,20 @@ var supportLevel = (function () {
 		return 1;
 	}
 
+	if ('CLICOLOR' in process.env) {
+		if (process.env.CLICOLOR === '0') {
+			return 0;
+		}
+
+		if (process.stdout && process.stdout.isTTY) {
+			return 1;
+		}
+	}
+
+	if ('CLICOLOR_FORCE' in process.env && process.env.CLICOLOR_FORCE !== '0') {
+		return 1;
+	}
+
 	if (process.stdout && !process.stdout.isTTY) {
 		return 0;
 	}
diff --git a/test.js b/test.js
index 034b8bb..52da8fa 100644
--- a/test.js
+++ b/test.js
@@ -15,6 +15,27 @@ it('should return true if `FORCE_COLOR` is in env', function () {
 	assert.equal(result.level, 1);
 });
 
+it('should return true if `CLICOLOR_FORCE` is != 0', function () {
+	process.env.CLICOLOR_FORCE = '1';
+	process.stdout.isTTY = false;
+	var result = requireUncached('./');
+	assert.equal(Boolean(result), true);
+	assert.equal(result.level, 1);
+});
+
+it('should return false if `CLICOLOR` is 0', function () {
+	process.env.CLICOLOR = '0';
+	var result = requireUncached('./');
+	assert.equal(Boolean(result), false);
+});
+
+it('should return true if `CLICOLOR` is != 0', function () {
+	process.env.CLICOLOR = '1';
+	var result = requireUncached('./');
+	assert.equal(Boolean(result), true);
+	assert.equal(result.level, 1);
+});
+
 it('should return false if not TTY', function () {
 	process.stdout.isTTY = false;
 	var result = requireUncached('./');