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[PATCH] Make -C less eager.

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Like diff-tree, this patch makes -C option for diff-* brothers
to use only pre-image of modified files as rename/copy detection
by default.  Give --find-copies-harder to use unmodified files
to find copies from as well.

This also fixes "diff-files -C" problem earlier noticed by
Linus.  It was feeding the null sha1 even when the file in the
work tree was known to match what is in the index file.  This
resulted in diff-files showing everything in the project.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Junio C Hamano
2005-06-19 13:14:05 -07:00
committed by Linus Torvalds
parent 170241b7d1
commit 4727f64003
8 changed files with 37 additions and 18 deletions
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2
t/t4007-rename-3.sh
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@@ -26,7 +26,7 @@ test_expect_success \
# path1 both have COPYING and the latter is a copy of path0/COPYING.
# Comparing the full tree with cache should tell us so.
git-diff-cache -C $tree >current
git-diff-cache -C --find-copies-harder $tree >current
cat >expected <<\EOF
:100644 100644 6ff87c4664981e4397625791c8ea3bbb5f2279a3 6ff87c4664981e4397625791c8ea3bbb5f2279a3 C100 path0/COPYING path1/COPYING