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Re: git-add fails after file type change

From
Junio C Hamano <junkio@cox.net>
Date
Dec 17, 2006, 01:39 UTC
Message-ID
<7vk60r7139.fsf@assigned-by-dhcp.cox.net>
In-Reply-To
<7vvekb73jh.fsf@assigned-by-dhcp.cox.net>

When replacing an existing file A with a directory B that has a file B/C in it in the index, 'update-index --replace --add B/C' did not properly remove the file to make room for the new directory.

There was a trivial logic error, most likely a cut & paste one, dating back to quite early days of git.

Signed-off-by: Junio C Hamano <junkio@cox.net>
---
  Junio C Hamano <junkio@cox.net> writes:
  > But I think you helped me to spot a bug ;-).
  >
  >         $ git update-index --replace --add 3/2
  >         $ git ls-files -s
  >         100644 00750edc07d6415dcc07ae0351e9397b0222b7ba 0     1
  >         100644 00750edc07d6415dcc07ae0351e9397b0222b7ba 0     3
  >         100644 fa457baf8abbf5dd3bb4cbfab0c5a4cf0523d7f8 0     3/2
  >
  > The entry '3' should have been removed when we did --replace.
  > This index cannot be written out as a tree:
  >
  >       $ git write-tree
  >         You have both 3 and 3/2
  >         fatal: git-write-tree: error building trees
  And this fixes it.
 read-cache.c     |    2 +-
 t/t0000-basic.sh |    9 +++++++++
 2 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/read-cache.c b/read-cache.c
index a602010..e856a2e 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -517,7 +517,7 @@ static int has_dir_name(const struct cache_entry *ce, int pos, int ok_to_replace
 		pos = cache_name_pos(name, ntohs(create_ce_flags(len, stage)));
 		if (pos >= 0) {
 			retval = -1;
-			if (ok_to_replace)
+			if (!ok_to_replace)
 				break;
 			remove_cache_entry_at(pos);
 			continue;
diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index 3260d1d..0cd1c41 100755
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -272,4 +272,13 @@ test_expect_success \
 	 wc -l) &&
      test $numparent = 1'
 
+test_expect_success 'update-index D/F conflict' '
+	mv path0 tmp &&
+	mv path2 path0 &&
+	mv tmp path2 &&
+	git update-index --add --replace path2 path0/file2 &&
+	numpath0=$(git ls-files path0 | wc -l) &&
+	test $numpath0 = 1
+'
+
 test_done
Previous: Junio C HamanoNext: Junio C Hamano
Message 9 of 11 in “git-add fails after file type change”
  1. Steven GrimmDec 16, 2006
  2. Jakub NarebskiDec 16, 2006
  3. Steven GrimmDec 16, 2006
  4. A Large Angry SCMDec 16, 2006
  5. Junio C HamanoDec 16, 2006
  6. Steven GrimmDec 16, 2006
  7. Steven GrimmDec 17, 2006
  8. Junio C HamanoDec 17, 2006
  9. Junio C HamanoDec 17, 2006
  10. git-add: remove conflicting entry when adding.Junio C Hamano, Dec 17, 2006
  11. Junio C HamanoDec 16, 2006

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