1 files changed, 49 insertions, 16 deletions

diff --git a/node_modules/supports-color/index.js b/node_modules/supports-color/index.js
index a2b978450..113040d63 100644
--- a/node_modules/supports-color/index.js
+++ b/node_modules/supports-color/index.js
@@ -1,39 +1,72 @@
 'use strict';
-var argv = process.argv;
+var hasFlag = require('has-flag');
 
-module.exports = (function () {
-	if (argv.indexOf('--no-color') !== -1 ||
-		argv.indexOf('--no-colors') !== -1 ||
-		argv.indexOf('--color=false') !== -1) {
+var support = function (level) {
+	if (level === 0) {
 		return false;
 	}
 
-	if (argv.indexOf('--color') !== -1 ||
-		argv.indexOf('--colors') !== -1 ||
-		argv.indexOf('--color=true') !== -1 ||
-		argv.indexOf('--color=always') !== -1) {
-		return true;
+	return {
+		level: level,
+		hasBasic: true,
+		has256: level >= 2,
+		has16m: level >= 3
+	};
+};
+
+var supportLevel = (function () {
+	if (hasFlag('no-color') ||
+		hasFlag('no-colors') ||
+		hasFlag('color=false')) {
+		return 0;
+	}
+
+	if (hasFlag('color=16m') ||
+		hasFlag('color=full') ||
+		hasFlag('color=truecolor')) {
+		return 3;
+	}
+
+	if (hasFlag('color=256')) {
+		return 2;
+	}
+
+	if (hasFlag('color') ||
+		hasFlag('colors') ||
+		hasFlag('color=true') ||
+		hasFlag('color=always')) {
+		return 1;
 	}
 
 	if (process.stdout && !process.stdout.isTTY) {
-		return false;
+		return 0;
 	}
 
 	if (process.platform === 'win32') {
-		return true;
+		return 1;
 	}
 
 	if ('COLORTERM' in process.env) {
-		return true;
+		return 1;
 	}
 
 	if (process.env.TERM === 'dumb') {
-		return false;
+		return 0;
+	}
+
+	if (/^xterm-256(?:color)?/.test(process.env.TERM)) {
+		return 2;
 	}
 
 	if (/^screen|^xterm|^vt100|color|ansi|cygwin|linux/i.test(process.env.TERM)) {
-		return true;
+		return 1;
 	}
 
-	return false;
+	return 0;
 })();
+
+if (supportLevel === 0 && 'FORCE_COLOR' in process.env) {
+	supportLevel = 1;
+}
+
+module.exports = process && support(supportLevel);