From 26f33b9581e91797f08fc57b1bff140a43898421 Mon Sep 17 00:00:00 2001
From: Mat Scales <mat@netcopy.co.uk>
Date: Fri, 24 May 2013 17:29:16 +0100
Subject: [PATCH] Check that git is installed when instantiating a git resolver

---
 lib/core/resolvers/GitResolver.js | 13 +++++++++++++
 package.json                      |  3 ++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/lib/core/resolvers/GitResolver.js b/lib/core/resolvers/GitResolver.js
index 02aa1fc6..0c37a147 100644
--- a/lib/core/resolvers/GitResolver.js
+++ b/lib/core/resolvers/GitResolver.js
@@ -7,9 +7,22 @@ var rimraf = require('rimraf');
 var mout = require('mout');
 var Resolver = require('./Resolver');
 var createError = require('../../util/createError');
+var which = require('which');
+
+var gitChecked = false;
 
 var GitResolver = function (source, options) {
     Resolver.call(this, source, options);
+
+    if (!gitChecked) {
+        try {
+            which.sync('git');
+        } catch (ex) {
+            throw new Error('git is not installed or not in the PATH');
+        }
+    }
+
+    gitChecked = true;
 };
 
 util.inherits(GitResolver, Resolver);
diff --git a/package.json b/package.json
index bad459d5..8eb6fb7e 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,8 @@
     "grunt-contrib-watch": "~0.4.3",
     "grunt": "~0.4.1",
     "grunt-contrib-jshint": "~0.5.4",
-    "grunt-execute": "~0.1.4"
+    "grunt-execute": "~0.1.4",
+    "which": "~1.0.5"
   },
   "scripts": {
     "test": "grunt test"