limit to platform in install

install

@@ -14,6 +14,18 @@ def makedirs(dirname):
     if not os.path.exists(dirname):
         os.makedirs(dirname)
 
+def get_platform():
+    name = sys.platform
+    if name.startswith('darwin'):
+        name = 'darwin64'
+    elif name.startswith('linux'):
+        import platform
+        if platform.architecture()[0] == '64bit':
+            name = 'linux64'
+        else:
+            name = 'linux32'
+    return name
+
 class Install(Thread):
 
     base_url = 'http://downloads.openmedialibrary.com/'
@@ -98,7 +110,9 @@ class Install(Thread):
         release = self.get_release()
         self.status['release'] = release
         print("Installing Open Media Library:")
+        platform = get_platform()
         for module in sorted(release['modules']):
+            if release['modules'][module].get('platform', platform) == platform:
                 self.status['installing'] = module
                 self.status['progress'] = 0
                 self.status['size'] = 0