File 0011-fsck-complain-about-NTFS-.git-aliases-in-trees.patch of Package git.openSUSE_13.1_Update
From d08c13b947335cc48ecc1a8453d97b7147c2d6d6 Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Wed, 10 Dec 2014 22:28:27 +0100
Subject: [PATCH 11/11] fsck: complain about NTFS ".git" aliases in trees
Now that the index can block pathnames that can be mistaken
to mean ".git" on NTFS and FAT32, it would be helpful for
fsck to notice such problematic paths. This lets servers
which use receive.fsckObjects block them before the damage
spreads.
Note that the fsck check is always on, even for systems
without core.protectNTFS set. This is technically more
restrictive than we need to be, as a set of users on ext4
could happily use these odd filenames without caring about
NTFS.
However, on balance, it's helpful for all servers to block
these (because the paths can be used for mischief, and
servers which bother to fsck would want to stop the spread
whether they are on NTFS themselves or not), and hardly
anybody will be affected (because the blocked names are
variants of .git or git~1, meaning mischief is almost
certainly what the tree author had in mind).
Ideally these would be controlled by a separate
"fsck.protectNTFS" flag. However, it would be much nicer to
be able to enable/disable _any_ fsck flag individually, and
any scheme we choose should match such a system. Given the
likelihood of anybody using such a path in practice, it is
not unreasonable to wait until such a system materializes.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
fsck.c | 3 ++-
t/t1450-fsck.sh | 9 +++++++--
2 files changed, 9 insertions(+), 3 deletions(-)
--- a/fsck.c
+++ b/fsck.c
@@ -176,7 +176,8 @@ static int fsck_tree(struct tree *item,
has_dot = 1;
if (!strcmp(name, ".."))
has_dotdot = 1;
- if (!strcasecmp(name, ".git") || is_hfs_dotgit(name))
+ if (!strcasecmp(name, ".git") || is_hfs_dotgit(name) ||
+ is_ntfs_dotgit(name))
has_dotgit = 1;
has_zero_pad |= *(char *)desc.buffer == '0';
update_tree_entry(&desc);
--- a/t/t1450-fsck.sh
+++ b/t/t1450-fsck.sh
@@ -251,10 +251,10 @@ while read name path pretty; do
tree=$(git rev-parse HEAD^{tree}) &&
value=$(eval "echo \$$type") &&
printf "$mode $type %s\t%s" "$value" "$path" >bad &&
- git mktree <bad &&
+ bad_tree=$(git mktree <bad) &&
git fsck 2>out &&
cat out &&
- grep "warning.*\\." out
+ grep "warning.*tree $bad_tree" out
)'
done <<-\EOF
100644 blob
@@ -266,6 +266,11 @@ dotdot ..
dotgit .git
dotgit-case .GIT
dotgit-unicode .gI${u200c}T .gI{u200c}T
+dotgit-case2 .Git
+git-tilde1 git~1
+dotgitdot .git.
+dot-backslash-case .\\\\.GIT\\\\foobar
+dotgit-case-backslash .git\\\\foobar
EOF
test_done
