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pack-objects: allow --shallow and --path-walk 

There does not appear to be anything particularly incompatible about the
--shallow and --path-walk options of 'git pack-objects'. If shallow
commits are to be handled differently, then it is by the revision walk
that defines the commit set and which are interesting or uninteresting.

However, before the previous change, a trivial removal of the warning
would cause a failure in t5500-fetch-pack.sh when
GIT_TEST_PACK_PATH_WALK is enabled. The shallow fetch would provide more
objects than we desired, due to some incorrect behavior of the path-walk
API, especially around walking uninteresting objects.

The recently-added tests in t5538-push-shallow.sh help to confirm this
behavior is working with the --path-walk option if
GIT_TEST_PACK_PATH_WALK is enabled. These tests passed previously due to
the --path-walk feature being disabled in the presence of a shallow
clone.

Signed-off-by: Derrick Stolee <stolee@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Derrick Stolee 2025-05-16 18:12:03 +00:00 committed by Junio C Hamano
parent 4705889c3d
commit c178b02e29
2 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
builtin/pack-objects.c
View File

@ -210,6 +210,7 @@ static int keep_unreachable, unpack_unreachable, include_tag;
static timestamp_t unpack_unreachable_expiration;
static int pack_loose_unreachable;
static int cruft;
static int shallow = 0;
static timestamp_t cruft_expiration;
static int local;
static int have_non_local_packs;
@ -4490,6 +4491,7 @@ static void get_object_list_path_walk(struct rev_info *revs)
* base objects.
*/
info.prune_all_uninteresting = sparse;
info.edge_aggressive = shallow;

trace2_region_enter("pack-objects", "path-walk", revs->repo);
result = walk_objects_by_path(&info);
@ -4695,7 +4697,6 @@ int cmd_pack_objects(int argc,
struct repository *repo UNUSED)
{
int use_internal_rev_list = 0;
int shallow = 0;
int all_progress_implied = 0;
struct strvec rp = STRVEC_INIT;
int rev_list_unpacked = 0, rev_list_all = 0, rev_list_reflog = 0;
@ -4881,8 +4882,6 @@ int cmd_pack_objects(int argc,
option = "--filter";
else if (use_delta_islands)
option = "--delta-islands";
else if (shallow)
option = "--shallow";

if (option) {
warning(_("cannot use %s with %s"),

10
t/t5538-push-shallow.sh
View File

@ -153,7 +153,15 @@ test_expect_success 'push new commit from shallow clone has good deltas' '

# If the delta base is found, then this message uses "bytes".
# If the delta base is not found, then this message uses "KiB".
test_grep "Writing objects: .* bytes" err
test_grep "Writing objects: .* bytes" err &&

git -C deltas commit --amend -m "changed message" &&
GIT_TRACE2_EVENT="$(pwd)/config-push.txt" \
GIT_PROGRESS_DELAY=0 git -C deltas -c pack.usePathWalk=true \
push --progress -f origin deltas 2>err &&

test_grep "Enumerating objects: 1, done" err &&
test_region pack-objects path-walk config-push.txt
'

test_done