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verify_dotfile(): reject .git case-insensitively

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We do not allow ".git" to enter into the index as a path
component, because checking out the result to the working
tree may causes confusion for subsequent git commands.
However, on case-insensitive file systems, ".Git" or ".GIT"
is the same. We should catch and prevent those, too.

Note that technically we could allow this for repos on
case-sensitive filesystems. But there's not much point. It's
unlikely that anybody cares, and it creates a repository
that is unexpectedly non-portable to other systems.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2014-11-24 13:39:12 -05:00 committed by Junio C Hamano
parent 96b50cc190
commit cc2fc7c2f0
2 changed files with 4 additions and 2 deletions
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5
read-cache.c
View File

@ -759,9 +759,10 @@ static int verify_dotfile(const char *rest)
* shares the path end test with the ".." case.
*/
case 'g':
if (rest[1] != 'i')
case 'G':
if (rest[1] != 'i' && rest[1] != 'I')
break;
if (rest[2] != 't')
if (rest[2] != 't' && rest[2] != 'T')
break;
rest += 2;
/* fallthrough */

1
t/t1014-read-tree-confusing.sh
View File

@ -27,6 +27,7 @@ done <<-\EOF
.
..
.git
.GIT
EOF
test_done