From 4fcb6396580698a56c4e44cfbef3b76157649940 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jukka=20Jyl=C3=A4nki?= <jujjyl@gmail.com>
Date: Thu, 21 Nov 2013 15:39:04 +0200
Subject: [PATCH] Fix vs-tool installation to properly unzip over a previous
 version.

---
 emsdk | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/emsdk b/emsdk
index 56792eb..faaf749 100644
--- a/emsdk
+++ b/emsdk
@@ -562,7 +562,8 @@ class Tool:
       if hasattr(self, 'git_branch'):
         success = git_clone_checkout_and_pull(url, self.installation_path(), self.git_branch)
       elif url.endswith('zip') or url.endswith('.tar') or url.endswith('.gz'):
-        success = download_and_unzip(url, self.installation_path())
+        download_even_if_exists = (self.id == 'vs-tool')
+        success = download_and_unzip(url, self.installation_path(), download_even_if_exists)
       else:
         dst_file = download_file(urlparse.urljoin(emsdk_packages_url, self.download_url()), self.installation_path())
         if dst_file: