Author: philip
Date: Tue Jun 7 13:44:41 2011
New Revision: 1133010
URL: http://svn.apache.org/viewvc?rev=1133010&view=rev
Log:
* build/generator/gen_base.py
(write_sqlite_headers): When writing headers don't overwite files
with unchanged content.
Modified:
subversion/trunk/build/generator/gen_base.py
Modified: subversion/trunk/build/generator/gen_base.py
URL:
http://svn.apache.org/viewvc/subversion/trunk/build/generator/gen_base.py?rev=1133010&r1=1133009&r2=1133010&view=diff
==============================================================================
--- subversion/trunk/build/generator/gen_base.py (original)
+++ subversion/trunk/build/generator/gen_base.py Tue Jun 7 13:44:41 2011
@@ -27,6 +27,7 @@ import sys
import glob
import re
import fileinput
+import filecmp
try:
# Python >=3.0
import configparser
@@ -215,7 +216,26 @@ class GeneratorBase:
import transform_sql
for hdrfile, sqlfile in self.graph.get_deps(DT_SQLHDR):
- transform_sql.main(sqlfile[0], open(hdrfile, 'w'))
+ new_hdrfile = hdrfile + ".new"
+ with open(new_hdrfile, 'w') as new_file:
+ transform_sql.main(sqlfile[0], new_file)
+
+ def identical(file1, file2):
+ try:
+ if filecmp.cmp(new_hdrfile, hdrfile):
+ return True
+ else:
+ return False
+ except:
+ return False
+
+ if identical(new_hdrfile, hdrfile):
+ os.remove(new_hdrfile)
+ else:
+ try:
+ os.remove(hdrfile)
+ except: pass
+ os.rename(new_hdrfile, hdrfile)
class DependencyGraph:
