The string in 'base' contains a path suffix to a specific object; when
its value is used, the suffix must either be filled (as in
stat_sha1_file, open_sha1_file, check_and_freshen_nonlocal) or cleared
(as in prepare_packed_git) to avoid junk at the end. loose_from_alt_odb
(introduced in 660c889e46d185dc98ba78963528826728b0a55d) did neither and
treated 'base' as a complete path to the "base" object directory,
instead of a pointer to the "base" of the full path string.
The trailing path after 'base' is still initialized to NUL, hiding the
bug in some common cases. Additionally the descendent
for_each_file_in_obj_subdir function swallows ENOENT, so an error only
shows if the alternate's path was last filled with a valid object
(where statting /path/to/existing/00/0bjectfile/00 fails).
Signed-off-by: Jonathon Mah <me@xxxxxxxxxxxxxxx>
---
sha1_file.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/sha1_file.c b/sha1_file.c
index 30995e6..fcb1c4b 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -3396,9 +3396,13 @@ static int loose_from_alt_odb(struct alternate_object_database *alt,
void *vdata)
{
struct loose_alt_odb_data *data = vdata;
- return for_each_loose_file_in_objdir(alt->base,
- data->cb, NULL, NULL,
- data->data);
+ int r;
+ alt->name[-1] = 0;
+ r = for_each_loose_file_in_objdir(alt->base,
+ data->cb, NULL, NULL,
+ data->data);
+ alt->name[-1] = '/';
+ return r;
}
int for_each_loose_object(each_loose_object_fn cb, void *data)
--
2.3.0.rc2.2.g184f7a0
--
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