1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/debug-log/index.js b/node_modules/debug-log/index.js
new file mode 100644
index 000000000..ce783650d
--- /dev/null
+++ b/node_modules/debug-log/index.js
@@ -0,0 +1,23 @@
+'use strict';
+// https://github.com/joyent/node/blob/fbfe562d71ae8d8f8bbf627808c755e513e4e905/lib/util.js#L96-L114
+var util = require('util');
+var debugEnv = process.env.NODE_DEBUG || '';
+var cache = {};
+
+module.exports = function (set) {
+	set = set.toUpperCase();
+
+	if (!cache[set]) {
+		if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnv)) {
+			var pid = process.pid;
+
+			cache[set] = function () {
+				console.error('%s %d: %s', set, pid, util.format.apply(util, arguments));
+			};
+		} else {
+			cache[set] = function () {};
+		}
+	}
+
+	return cache[set];
+};