Author: jross
Date: Fri Jul 12 13:47:53 2013
New Revision: 1502556
URL: http://svn.apache.org/r1502556
Log:
QPID-4987: Avoid unnecessary disk writes
Modified:
qpid/site/python/transom/site.py
Modified: qpid/site/python/transom/site.py
URL:
http://svn.apache.org/viewvc/qpid/site/python/transom/site.py?rev=1502556&r1=1502555&r2=1502556&view=diff
==============================================================================
--- qpid/site/python/transom/site.py (original)
+++ qpid/site/python/transom/site.py Fri Jul 12 13:47:53 2013
@@ -22,6 +22,7 @@ import os
import shutil
import sys
import tempfile
+import zlib
from ConfigParser import SafeConfigParser
from collections import defaultdict
@@ -273,6 +274,15 @@ class _Page(_File):
if path is None:
path = self.output_path
+ if os.path.exists(path):
+ content_checksum = zlib.adler32(self.content)
+
+ with open(path, "r") as file:
+ file_checksum = zlib.adler32(file.read())
+
+ if content_checksum == file_checksum:
+ return
+
_make_dirs(os.path.dirname(path))
with open(path, "w") as file:
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