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Merge branch 'jt/fetch-no-update-shallow-in-proto-v2'

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Fix for protocol v2 support in "git fetch-pack" of shallow clones.

* jt/fetch-no-update-shallow-in-proto-v2:
  fetch-pack: respect --no-update-shallow in v2
  fetch-pack: call prepare_shallow_info only if v0
This commit is contained in:
Junio C Hamano
2019-04-25 16:41:16 +09:00
parent abd7ccdd4d 1339078f5e
commit 732ce7aaca
2 changed files with 45 additions and 10 deletions
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51
fetch-pack.c
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@ -1253,9 +1253,11 @@ static int process_acks(struct fetch_negotiator *negotiator,
}
static void receive_shallow_info(struct fetch_pack_args *args,
struct packet_reader *reader)
struct packet_reader *reader,
struct oid_array *shallows,
struct shallow_info *si)
{
int line_received = 0;
int unshallow_received = 0;
process_section_header(reader, "shallow-info", 0);
while (packet_reader_read(reader) == PACKET_READ_NORMAL) {
@ -1265,8 +1267,7 @@ static void receive_shallow_info(struct fetch_pack_args *args,
if (skip_prefix(reader->line, "shallow ", &arg)) {
if (get_oid_hex(arg, &oid))
die(_("invalid shallow line: %s"), reader->line);
register_shallow(the_repository, &oid);
line_received = 1;
oid_array_append(shallows, &oid);
continue;
}
if (skip_prefix(reader->line, "unshallow ", &arg)) {
@ -1279,7 +1280,7 @@ static void receive_shallow_info(struct fetch_pack_args *args,
die(_("error in object: %s"), reader->line);
if (unregister_shallow(&oid))
die(_("no shallow found: %s"), reader->line);
line_received = 1;
unshallow_received = 1;
continue;
}
die(_("expected shallow/unshallow, got %s"), reader->line);
@ -1289,10 +1290,31 @@ static void receive_shallow_info(struct fetch_pack_args *args,
reader->status != PACKET_READ_DELIM)
die(_("error processing shallow info: %d"), reader->status);
if (line_received) {
if (args->deepen || unshallow_received) {
/*
* Treat these as shallow lines caused by our depth settings.
* In v0, these lines cannot cause refs to be rejected; do the
* same.
*/
int i;
for (i = 0; i < shallows->nr; i++)
register_shallow(the_repository, &shallows->oid[i]);
setup_alternate_shallow(&shallow_lock, &alternate_shallow_file,
NULL);
args->deepen = 1;
} else if (shallows->nr) {
/*
* Treat these as shallow lines caused by the remote being
* shallow. In v0, remote refs that reach these objects are
* rejected (unless --update-shallow is set); do the same.
*/
prepare_shallow_info(si, shallows);
if (si->nr_ours || si->nr_theirs)
alternate_shallow_file =
setup_temporary_shallow(si->shallow);
else
alternate_shallow_file = NULL;
} else {
alternate_shallow_file = NULL;
}
@ -1338,6 +1360,8 @@ static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args,
int fd[2],
const struct ref *orig_ref,
struct ref **sought, int nr_sought,
struct oid_array *shallows,
struct shallow_info *si,
char **pack_lockfile)
{
struct ref *ref = copy_ref_list(orig_ref);
@ -1412,7 +1436,7 @@ static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args,
case FETCH_GET_PACK:
/* Check for shallow-info section */
if (process_section_header(&reader, "shallow-info", 1))
receive_shallow_info(args, &reader);
receive_shallow_info(args, &reader, shallows, si);
if (process_section_header(&reader, "wanted-refs", 1))
receive_wanted_refs(&reader, sought, nr_sought);
@ -1625,6 +1649,7 @@ struct ref *fetch_pack(struct fetch_pack_args *args,
{
struct ref *ref_cpy;
struct shallow_info si;
struct oid_array shallows_scratch = OID_ARRAY_INIT;
fetch_pack_setup();
if (nr_sought)
@ -1648,13 +1673,18 @@ struct ref *fetch_pack(struct fetch_pack_args *args,
packet_flush(fd[1]);
die(_("no matching remote head"));
}
prepare_shallow_info(&si, shallow);
if (version == protocol_v2)
if (version == protocol_v2) {
if (shallow->nr)
BUG("Protocol V2 does not provide shallows at this point in the fetch");
memset(&si, 0, sizeof(si));
ref_cpy = do_fetch_pack_v2(args, fd, ref, sought, nr_sought,
&shallows_scratch, &si,
pack_lockfile);
else
} else {
prepare_shallow_info(&si, shallow);
ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought,
&si, pack_lockfile);
}
reprepare_packed_git(the_repository);
if (!args->cloning && args->deepen) {
@ -1676,6 +1706,7 @@ struct ref *fetch_pack(struct fetch_pack_args *args,
update_shallow(args, sought, nr_sought, &si);
cleanup:
clear_shallow_info(&si);
oid_array_clear(&shallows_scratch);
return ref_cpy;
}