@@ -422,6 +422,44 @@ test_expect_success 'single-branch tag following respects partial clone' '
test_must_fail git -C single rev-parse --verify refs/tags/C
'
+test_expect_success 'fetch from a partial clone, protocol v0' '
+ rm -rf server client trace &&
+
+ # Pretend that the server is a partial clone
+ git init server &&
+ git -C server remote add a_remote "file://$(pwd)/" &&
+ test_config -C server core.repositoryformatversion 1 &&
+ test_config -C server extensions.partialclone a_remote &&
+ test_config -C server protocol.version 0 &&
+ test_commit -C server foo &&
+
+ # Fetch from the server
+ git init client &&
+ test_config -C client protocol.version 0 &&
+ test_commit -C client bar &&
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch "file://$(pwd)/server" &&
+ ! grep "version 2" trace
+'
+
+test_expect_success 'fetch from a partial clone, protocol v2' '
+ rm -rf server client trace &&
+
+ # Pretend that the server is a partial clone
+ git init server &&
+ git -C server remote add a_remote "file://$(pwd)/" &&
+ test_config -C server core.repositoryformatversion 1 &&
+ test_config -C server extensions.partialclone a_remote &&
+ test_config -C server protocol.version 2 &&
+ test_commit -C server foo &&
+
+ # Fetch from the server
+ git init client &&
+ test_config -C client protocol.version 2 &&
+ test_commit -C client bar &&
+ GIT_TRACE_PACKET="$(pwd)/trace" git -C client fetch "file://$(pwd)/server" &&
+ grep "version 2" trace
+'
+
. "$TEST_DIRECTORY"/lib-httpd.sh
start_httpd
@@ -482,7 +482,8 @@ static int got_oid(struct upload_pack_data *data,
{
if (get_oid_hex(hex, oid))
die("git upload-pack: expected SHA1 object, got '%s'", hex);
- if (!has_object_file(oid))
+ if (!has_object_file_with_flags(oid,
+ OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT))
return -1;
return do_got_oid(data, oid);
}
@@ -1423,7 +1424,8 @@ static int process_haves(struct upload_pack_data *data, struct oid_array *common
for (i = 0; i < data->haves.nr; i++) {
const struct object_id *oid = &data->haves.oid[i];
- if (!has_object_file(oid))
+ if (!has_object_file_with_flags(oid,
+ OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT))
continue;
oid_array_append(common, oid);
When upload-pack receives a request containing "have" hashes, it (among other things) checks if the served repository has the corresponding objects. However, it does not do so with the OBJECT_INFO_SKIP_FETCH_OBJECT flag, so if serving a partial clone, a lazy fetch will be triggered first. This was discovered at $DAYJOB when a user fetched from a partial clone (into another partial clone - although this would also happen if the repo to be fetched into is not a partial clone). Therefore, whenever "have" hashes are checked for existence, pass the OBJECT_INFO_SKIP_FETCH_OBJECT flag. Also add the OBJECT_INFO_QUICK flag to improve performance, as it is typical that such objects do not exist in the serving repo, and the consequences of a false negative are minor (usually, a slightly larger pack sent). Signed-off-by: Jonathan Tan <jonathantanmy@google.com> --- Differences from v1: OBJECT_INFO_QUICK is also used wherever OBJECT_INFO_SKIP_FETCH_OBJECT is added. Using OBJECT_INFO_QUICK makes sense to me, so here's an updated patch. --- t/t5616-partial-clone.sh | 38 ++++++++++++++++++++++++++++++++++++++ upload-pack.c | 6 ++++-- 2 files changed, 42 insertions(+), 2 deletions(-)