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authorJonathon Mah <me@jonathonmah.com>2015-02-08 20:15:39 -0500
committerJunio C Hamano <gitster@pobox.com>2015-02-09 14:14:56 -0800
commitb0a4264277b7968741580093e7ea1e366943d297 (patch)
tree4f5aa607be2f0a2e5d75ff3f7ab893f0367e63f3
parente6f875e052bb327d43d86b4e8335ebd4746d3e2a (diff)
downloadgit-b0a4264277b7968741580093e7ea1e366943d297.tar.gz
sha1_file: fix iterating loose alternate objects
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. 660c889e (sha1_file: add for_each iterators for loose and packed objects, 2014-10-15) introduced loose_from_alt_odb(), but this 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@JonathonMah.com> Helped-by: Kyle J. McKay <mackyle@gmail.com> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--sha1_file.c13
-rwxr-xr-xt/t5304-prune.sh8
2 files changed, 18 insertions, 3 deletions
diff --git a/sha1_file.c b/sha1_file.c
index 725de7f9cf..a41cc4f65f 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -3406,9 +3406,16 @@ 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);
+ struct strbuf buf = STRBUF_INIT;
+ int r;
+
+ /* copy base not including trailing '/' */
+ strbuf_add(&buf, alt->base, alt->name - alt->base - 1);
+ r = for_each_loose_file_in_objdir_buf(&buf,
+ data->cb, NULL, NULL,
+ data->data);
+ strbuf_release(&buf);
+ return r;
}
int for_each_loose_object(each_loose_object_fn cb, void *data)
diff --git a/t/t5304-prune.sh b/t/t5304-prune.sh
index e32e46dee1..0794d33dad 100755
--- a/t/t5304-prune.sh
+++ b/t/t5304-prune.sh
@@ -253,4 +253,12 @@ test_expect_success 'prune .git/shallow' '
test_path_is_missing .git/shallow
'
+test_expect_success 'prune: handle alternate object database' '
+ test_create_repo A &&
+ git -C A commit --allow-empty -m "initial commit" &&
+ git clone --shared A B &&
+ git -C B commit --allow-empty -m "next commit" &&
+ git -C B prune
+'
+
test_done