From abdab75112a6da880d7388bcbf492f7032d897a7 Mon Sep 17 00:00:00 2001
From: Matthew Andrews <matthew@andrews.eu.com>
Date: Wed, 24 Jul 2013 23:37:17 +0100
Subject: [PATCH] Allow the developer to opt out of instrumentation

---
 lib/buster-istanbul.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/buster-istanbul.js b/lib/buster-istanbul.js
index af527f0..d3a5a9a 100644
--- a/lib/buster-istanbul.js
+++ b/lib/buster-istanbul.js
@@ -21,8 +21,9 @@ function merge(paths) {
 }
 
 var setup = {
-  node: function(group) {
+  node: function(group, instrument) {
     coverage.hookRequire();
+    if (instrument === false) return;
     group.sources.forEach(function(pattern) {
       glob.glob(pattern).forEach(function(fPath) {
         coverage.addInstrumentCandidate(fPath);
@@ -44,6 +45,7 @@ var setup = {
     });
 
     group.on('load:sources', function(rs){
+      if (instrument === false) return;
       rs.addProcessor(function(resource, content){
         return coverage.instrumentCode(content, resource['path'].replace(/\//, ''));
       });
@@ -86,7 +88,7 @@ module.exports = {
   },
 
   configure: function(group) {
-    setup[group.environment](group);
+    setup[group.environment](group, this.options.instrument);
     var self = this;
     process.on("exit", function() {
       coverage.writeReports(self.options.outputDirectory);