From b9d5f11b208e3b888433e9de3ad5eee503e82ea1 Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Thu, 21 Jun 2018 16:52:33 +0200
Subject: Add `./mach bootstrap-android`

---
 python/servo/util.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'python/servo/util.py')

diff --git a/python/servo/util.py b/python/servo/util.py
index 2043b0e2868..a4e126d3240 100644
--- a/python/servo/util.py
+++ b/python/servo/util.py
@@ -9,6 +9,7 @@
 
 from __future__ import absolute_import, print_function, unicode_literals
 
+import hashlib
 import os
 import os.path
 import platform
@@ -165,3 +166,15 @@ def extract(src, dst, movedir=None):
         os.rmdir(movedir)
 
     os.remove(src)
+
+def check_hash(filename, expected, algorithm):
+    hasher = hashlib.new(algorithm)
+    with open(filename, "rb") as f:
+        while True:
+            block = f.read(16 * 1024)
+            if len(block) == 0:
+                break
+            hasher.update(block)
+    if hasher.hexdigest() != expected:
+        print("Incorrect {} hash for {}".format(algorithm, filename))
+        sys.exit(1)
-- 
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