size_t nr, alloc;
};
-static void cache_one_alternate(const char *refname,
- const struct object_id *oid,
+static void cache_one_alternate(const struct object_id *oid,
void *vcache)
{
struct alternate_object_cache *cache = vcache;
ACK_ready
};
-static void consume_shallow_list(struct fetch_pack_args *args, int fd)
+static void consume_shallow_list(struct fetch_pack_args *args,
+ struct packet_reader *reader)
{
if (args->stateless_rpc && args->deepen) {
/* If we sent a depth we will get back "duplicate"
* shallow and unshallow commands every time there
* is a block of have lines exchanged.
*/
- char *line;
- while ((line = packet_read_line(fd, NULL))) {
- if (starts_with(line, "shallow "))
+ while (packet_reader_read(reader) == PACKET_READ_NORMAL) {
+ if (starts_with(reader->line, "shallow "))
continue;
- if (starts_with(line, "unshallow "))
+ if (starts_with(reader->line, "unshallow "))
continue;
die(_("git fetch-pack: expected shallow list"));
}
+ if (reader->status != PACKET_READ_FLUSH)
+ die(_("git fetch-pack: expected a flush packet after shallow list"));
}
}
-static enum ack_type get_ack(int fd, struct object_id *result_oid)
+static enum ack_type get_ack(struct packet_reader *reader,
+ struct object_id *result_oid)
{
int len;
- char *line = packet_read_line(fd, &len);
const char *arg;
- if (!line)
+ if (packet_reader_read(reader) != PACKET_READ_NORMAL)
die(_("git fetch-pack: expected ACK/NAK, got a flush packet"));
- if (!strcmp(line, "NAK"))
+ len = reader->pktlen;
+
+ if (!strcmp(reader->line, "NAK"))
return NAK;
- if (skip_prefix(line, "ACK ", &arg)) {
+ if (skip_prefix(reader->line, "ACK ", &arg)) {
if (!get_oid_hex(arg, result_oid)) {
arg += 40;
- len -= arg - line;
+ len -= arg - reader->line;
if (len < 1)
return ACK;
if (strstr(arg, "continue"))
return ACK;
}
}
- if (skip_prefix(line, "ERR ", &arg))
+ if (skip_prefix(reader->line, "ERR ", &arg))
die(_("remote error: %s"), arg);
- die(_("git fetch-pack: expected ACK/NAK, got '%s'"), line);
+ die(_("git fetch-pack: expected ACK/NAK, got '%s'"), reader->line);
}
static void send_request(struct fetch_pack_args *args,
int got_ready = 0;
struct strbuf req_buf = STRBUF_INIT;
size_t state_len = 0;
+ struct packet_reader reader;
if (args->stateless_rpc && multi_ack == 1)
die(_("--stateless-rpc requires multi_ack_detailed"));
+ packet_reader_init(&reader, fd[0], NULL, 0,
+ PACKET_READ_CHOMP_NEWLINE);
+
if (!args->no_dependents) {
mark_tips(negotiator, args->negotiation_tips);
for_each_cached_alternate(negotiator, insert_one_alternate_object);
state_len = req_buf.len;
if (args->deepen) {
- char *line;
const char *arg;
struct object_id oid;
send_request(args, fd[1], &req_buf);
- while ((line = packet_read_line(fd[0], NULL))) {
- if (skip_prefix(line, "shallow ", &arg)) {
+ while (packet_reader_read(&reader) == PACKET_READ_NORMAL) {
+ if (skip_prefix(reader.line, "shallow ", &arg)) {
if (get_oid_hex(arg, &oid))
- die(_("invalid shallow line: %s"), line);
+ die(_("invalid shallow line: %s"), reader.line);
register_shallow(the_repository, &oid);
continue;
}
- if (skip_prefix(line, "unshallow ", &arg)) {
+ if (skip_prefix(reader.line, "unshallow ", &arg)) {
if (get_oid_hex(arg, &oid))
- die(_("invalid unshallow line: %s"), line);
+ die(_("invalid unshallow line: %s"), reader.line);
if (!lookup_object(the_repository, oid.hash))
- die(_("object not found: %s"), line);
+ die(_("object not found: %s"), reader.line);
/* make sure that it is parsed as shallow */
if (!parse_object(the_repository, &oid))
- die(_("error in object: %s"), line);
+ die(_("error in object: %s"), reader.line);
if (unregister_shallow(&oid))
- die(_("no shallow found: %s"), line);
+ die(_("no shallow found: %s"), reader.line);
continue;
}
- die(_("expected shallow/unshallow, got %s"), line);
+ die(_("expected shallow/unshallow, got %s"), reader.line);
}
} else if (!args->stateless_rpc)
send_request(args, fd[1], &req_buf);
if (!args->stateless_rpc && count == INITIAL_FLUSH)
continue;
- consume_shallow_list(args, fd[0]);
+ consume_shallow_list(args, &reader);
do {
- ack = get_ack(fd[0], result_oid);
+ ack = get_ack(&reader, result_oid);
if (ack)
print_verbose(args, _("got %s %d %s"), "ack",
ack, oid_to_hex(result_oid));
strbuf_release(&req_buf);
if (!got_ready || !no_done)
- consume_shallow_list(args, fd[0]);
+ consume_shallow_list(args, &reader);
while (flushes || multi_ack) {
- int ack = get_ack(fd[0], result_oid);
+ int ack = get_ack(&reader, result_oid);
if (ack) {
print_verbose(args, _("got %s (%d) %s"), "ack",
ack, oid_to_hex(result_oid));
oidset_insert(oids, &refs->old_oid);
}
-static int tip_oids_contain(struct oidset *tip_oids,
- struct ref *unmatched, struct ref *newlist,
- const struct object_id *id)
+static int is_unmatched_ref(const struct ref *ref)
{
- /*
- * Note that this only looks at the ref lists the first time it's
- * called. This works out in filter_refs() because even though it may
- * add to "newlist" between calls, the additions will always be for
- * oids that are already in the set.
- */
- if (!tip_oids->map.map.tablesize) {
- add_refs_to_oidset(tip_oids, unmatched);
- add_refs_to_oidset(tip_oids, newlist);
- }
- return oidset_contains(tip_oids, id);
+ struct object_id oid;
+ const char *p;
+ return ref->match_status == REF_NOT_MATCHED &&
+ !parse_oid_hex(ref->name, &oid, &p) &&
+ *p == '\0' &&
+ oideq(&oid, &ref->old_oid);
}
static void filter_refs(struct fetch_pack_args *args,
struct ref *ref, *next;
struct oidset tip_oids = OIDSET_INIT;
int i;
+ int strict = !(allow_unadvertised_object_request &
+ (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1));
i = 0;
for (ref = *refs; ref; ref = next) {
}
}
+ if (strict) {
+ for (i = 0; i < nr_sought; i++) {
+ ref = sought[i];
+ if (!is_unmatched_ref(ref))
+ continue;
+
+ add_refs_to_oidset(&tip_oids, unmatched);
+ add_refs_to_oidset(&tip_oids, newlist);
+ break;
+ }
+ }
+
/* Append unmatched requests to the list */
for (i = 0; i < nr_sought; i++) {
- struct object_id oid;
- const char *p;
-
ref = sought[i];
- if (ref->match_status != REF_NOT_MATCHED)
- continue;
- if (parse_oid_hex(ref->name, &oid, &p) ||
- *p != '\0' ||
- oidcmp(&oid, &ref->old_oid))
+ if (!is_unmatched_ref(ref))
continue;
- if ((allow_unadvertised_object_request &
- (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)) ||
- tip_oids_contain(&tip_oids, unmatched, newlist,
- &ref->old_oid)) {
+ if (!strict || oidset_contains(&tip_oids, &ref->old_oid)) {
ref->match_status = REF_MATCHED;
*newtail = copy_ref(ref);
newtail = &(*newtail)->next;
reader->status != PACKET_READ_DELIM)
die(_("error processing acks: %d"), reader->status);
+ /*
+ * If an "acknowledgments" section is sent, a packfile is sent if and
+ * only if "ready" was sent in this section. The other sections
+ * ("shallow-info" and "wanted-refs") are sent only if a packfile is
+ * sent. Therefore, a DELIM is expected if "ready" is sent, and a FLUSH
+ * otherwise.
+ */
+ if (received_ready && reader->status != PACKET_READ_DELIM)
+ die(_("expected packfile to be sent after 'ready'"));
+ if (!received_ready && reader->status != PACKET_READ_FLUSH)
+ die(_("expected no other sections to be sent after no 'ready'"));
+
/* return 0 if no common, 1 if there are common, or 2 if ready */
return received_ready ? 2 : (received_ack ? 1 : 0);
}
parse_list_objects_filter(&args->filter_options, "blob:none");
}
- if (!ref) {
+ if (version != protocol_v2 && !ref) {
packet_flush(fd[1]);
die(_("no matching remote head"));
}