Fixes #167 - On El Cap, detect Xcode 7 properly installed

check_reqs.js

@@ -0,0 +1,32 @@
+#!/usr/bin/env node
+
+var shell = require('shelljs');
+var util = require('util');
+var os = require('os');
+
+var XCODEBUILD_MIN_VERSION = '6.4';
+var XCODEBUILD_NOT_FOUND_MESSAGE =
+    'Please install Xcode version ' + XCODEBUILD_MIN_VERSION + ' or greater from App Store';
+	
+var tool = 'xcodebuild'
+var tool_command = shell.which(tool);
+if (!tool_command) {
+    console.log(tool + ' : ' + XCODEBUILD_NOT_FOUND_MESSAGE);
+	process.exit(1);
+}
+
+shell.exec(tool + ' -version', { silent: true }, function(code, output) {
+	if (code === 0) {
+		var arr = output.match(/^Xcode (\d+\.\d+)/);
+		var ver = arr[1];
+
+		if (os.release() >= '15.0.0' && ver < '7.0') {
+			console.log(util.format('You need at least Xcode 7.0 on OS X 10.11 El Capitan (you have version %s)', ver));
+			process.exit(1);
+		}
+		
+		if (ver < XCODEBUILD_MIN_VERSION) {
+		    console.log(util.format('%s : %s. (you have version %s)', tool, XCODEBUILD_NOT_FOUND_MESSAGE, ver));
+		}
+	} 
+});

package.json

@@ -1,17 +1,22 @@
 {
   "name": "ios-deploy",
   "version": "1.8.0",
-  "os" : [ "darwin" ],
+  "os": [
+    "darwin"
+  ],
   "description": "launch iOS apps iOS devices from the command line (Xcode 7)",
   "main": "ios-deploy",
   "scripts": {
-      "preinstall": "make ios-deploy"
+    "preinstall": "./check_reqs.js && make ios-deploy"
   },
-  "bin" : "./ios-deploy" ,
+  "bin": "./ios-deploy",
   "repository": {
     "type": "git",
     "url": "https://github.com/phonegap/ios-deploy"
   },
+  "dependencies": {
+    "shelljs": "^0.2.6"
+  },
   "keywords": [
     "ios-deploy",
     "deploy to iOS device"