feature(spawnify) add getHome

Author: coderaiser

lib/spawnify.js

@@ -41,15 +41,21 @@
         return spawnify;
     };
 
-    function parseDir(dir) {
+    function getHome() {
         var HOME_WIN    = process.env.HOMEPATH,
             HOME_UNIX   = process.env.HOME,
-            HOME        = HOME_WIN || HOME_UNIX,
-            cwd         = process.cwd();
+            HOME        = HOME_WIN || HOME_UNIX;
+        
+        return HOME;
+    }
+    
+    function parseDir(dir) {
+        var home    = getHome(),
+            cwd     = process.cwd();
 
         assert(dir, 'dir should be string!');
 
-        dir = dir.replace(/^~/, HOME)
+        dir = dir.replace(/^~/, home)
                  .replace(/^\./, cwd);
 
         return dir;
@@ -234,7 +240,7 @@
         var wasError, strs,
             self            = this,
             CD              = 'cd ',
-            HOME            = process.env.HOME,
+            HOME            = getHome(),
 
             isChangeVolume  = win.isChangeVolume(command),
             isVolume        = win.isVolume(command),