From: W. Trevor King <wking@drexel.edu>
Date: Wed, 17 Nov 2010 22:13:24 +0000 (-0500)
Subject: Adjust mkogg.py's file hash algorithm for faster binary file hashing.
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=48e38521c3b0a7c68984c0568248df8426b31709;p=blog.git

Adjust mkogg.py's file hash algorithm for faster binary file hashing.
---

diff --git a/posts/mkogg/mkogg.py b/posts/mkogg/mkogg.py
index dd8c9f6..22d7720 100755
--- a/posts/mkogg/mkogg.py
+++ b/posts/mkogg/mkogg.py
@@ -185,10 +185,13 @@ class Converter (object):
         >>> c.cleanup()
         """
         h = _hash()
+        chunk_size = 2**20  # 1 Mb
         try:
-            with open(filename, 'r') as f:
-                for line in f:
-                    h.update(line)
+            with open(filename, 'rb') as f:
+                chunk = ' '
+                while len(chunk) > 0:
+                    chunk = f.read(chunk_size)
+                    h.update(chunk)
         except IOError:
             return None
         return str(h.hexdigest())