Mercurial > hg-stable

changeset 6871:13fe85fe396b

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mdiff: compare content of binary files directly A plain Python string comparison stops when the first mismatch is found, whereas the call to md5 would need to compute the hash over the entire string and only then do the comparison.
author Martin Geisler <mg@daimi.au.dk>
date Sat, 09 Aug 2008 02:10:22 +0200
parents 974f5263f546
children c7cc40fd74f6
files mercurial/mdiff.py
diffstat 1 files changed, 1 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/mdiff.py	Fri Aug 08 18:49:55 2008 +0200
+++ b/mercurial/mdiff.py	Sat Aug 09 02:10:22 2008 +0200
@@ -78,10 +78,7 @@
     epoch = util.datestr((0, 0))
 
     if not opts.text and (util.binary(a) or util.binary(b)):
-        def h(v):
-            # md5 is used instead of sha1 because md5 is supposedly faster
-            return util.md5(v).digest()
-        if a and b and len(a) == len(b) and h(a) == h(b):
+        if a and b and len(a) == len(b) and a == b:
             return ""
         l = ['Binary file %s has changed\n' % fn1]
     elif not a: