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diffcore-break: micro-optimize by avoiding delta between identical files.
[git.git]
/
diffcore-break.c
diff --git
a/diffcore-break.c
b/diffcore-break.c
index
c57513a
..
95b5eb4
100644
(file)
--- a/
diffcore-break.c
+++ b/
diffcore-break.c
@@
-58,6
+58,10
@@
static int should_break(struct diff_filespec *src,
if (!S_ISREG(src->mode) || !S_ISREG(dst->mode))
return 0; /* leave symlink rename alone */
if (!S_ISREG(src->mode) || !S_ISREG(dst->mode))
return 0; /* leave symlink rename alone */
+ if (src->sha1_valid && dst->sha1_valid &&
+ !memcmp(src->sha1, dst->sha1, 20))
+ return 0; /* they are the same */
+
if (diff_populate_filespec(src, 0) || diff_populate_filespec(dst, 0))
return 0; /* error but caught downstream */
if (diff_populate_filespec(src, 0) || diff_populate_filespec(dst, 0))
return 0; /* error but caught downstream */