From 6583a53b7a10db08c4aa0ba5cad9b1a70ec8553d Mon Sep 17 00:00:00 2001
From: Yun Lai <lyonlai1984@gmail.com>
Date: Sun, 12 Jul 2015 17:54:10 +1000
Subject: [PATCH] added config runOnlyOnce for special cases.

---
 index.js     | 11 +++++++++++
 package.json |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/index.js b/index.js
index 7fa7bd5..95481ad 100644
--- a/index.js
+++ b/index.js
@@ -10,11 +10,22 @@ var runScriptOnChangePreprocessor = function(args, logger, config) {
 
   var messageOnError = (config && config.messageOnError) || null;
 
+  var runOnlyOnce = (config && config.runOnlyOnce) || null;
+
+  var scriptHasRun = false;
+
   return function(content, file, done) {
     var result = null;
 
+    if(runOnlyOnce && scriptHasRun) {
+      log.debug('script has been executed, not gonna run again, exiting');
+      return done(null, content);
+    }
+
     if (script) {
       result = shell.exec(script);
+
+      scriptHasRun = true;
     }
 
     log.debug('shell execution result', result);
diff --git a/package.json b/package.json
index 9626612..880d710 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "karma-runscript-preprocessor",
-  "version": "0.0.4",
+  "version": "0.0.5",
   "description": "run a script on file changed. it can bail the test running on script failed. it's suitable for using a single test-loader in karma-webpack.",
   "main": "index.js",
   "scripts": {