summaryrefslogtreecommitdiff
path: root/fetch-pack.c
diff options
context:
space:
mode:
Diffstat (limited to 'fetch-pack.c')
-rw-r--r--fetch-pack.c98
1 files changed, 67 insertions, 31 deletions
diff --git a/fetch-pack.c b/fetch-pack.c
index 812be15d7e..3f24d0c8a6 100644
--- a/fetch-pack.c
+++ b/fetch-pack.c
@@ -191,8 +191,10 @@ static void send_request(struct fetch_pack_args *args,
if (args->stateless_rpc) {
send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX);
packet_flush(fd);
- } else
- write_or_die(fd, buf->buf, buf->len);
+ } else {
+ if (write_in_full(fd, buf->buf, buf->len) < 0)
+ die_errno(_("unable to write to remote"));
+ }
}
static void insert_one_alternate_object(struct fetch_negotiator *negotiator,
@@ -571,9 +573,14 @@ static void filter_refs(struct fetch_pack_args *args,
next = ref->next;
if (starts_with(ref->name, "refs/") &&
- check_refname_format(ref->name, 0))
- ; /* trash */
- else {
+ check_refname_format(ref->name, 0)) {
+ /*
+ * trash or a peeled value; do not even add it to
+ * unmatched list
+ */
+ free_one_ref(ref);
+ continue;
+ } else {
while (i < nr_sought) {
int cmp = strcmp(ref->name, sought[i]->name);
if (cmp < 0)
@@ -628,10 +635,7 @@ static void filter_refs(struct fetch_pack_args *args,
}
oidset_clear(&tip_oids);
- for (ref = unmatched; ref; ref = next) {
- next = ref->next;
- free(ref);
- }
+ free_refs(unmatched);
*refs = newlist;
}
@@ -1163,7 +1167,8 @@ static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out,
/* Send request */
packet_buf_flush(&req_buf);
- write_or_die(fd_out, req_buf.buf, req_buf.len);
+ if (write_in_full(fd_out, req_buf.buf, req_buf.len) < 0)
+ die_errno(_("unable to write request to remote"));
strbuf_release(&req_buf);
return ret;
@@ -1250,9 +1255,11 @@ 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) {
@@ -1262,8 +1269,7 @@ 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)) {
@@ -1276,7 +1282,7 @@ 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);
@@ -1286,15 +1292,41 @@ 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;
}
}
+static int cmp_name_ref(const void *name, const void *ref)
+{
+ return strcmp(name, (*(struct ref **)ref)->name);
+}
+
static void receive_wanted_refs(struct packet_reader *reader,
struct ref **sought, int nr_sought)
{
@@ -1302,20 +1334,16 @@ static void receive_wanted_refs(struct packet_reader *reader,
while (packet_reader_read(reader) == PACKET_READ_NORMAL) {
struct object_id oid;
const char *end;
- int i;
+ struct ref **found;
if (parse_oid_hex(reader->line, &oid, &end) || *end++ != ' ')
die(_("expected wanted-ref, got '%s'"), reader->line);
- for (i = 0; i < nr_sought; i++) {
- if (!strcmp(end, sought[i]->name)) {
- oidcpy(&sought[i]->old_oid, &oid);
- break;
- }
- }
-
- if (i == nr_sought)
+ found = bsearch(end, sought, nr_sought, sizeof(*sought),
+ cmp_name_ref);
+ if (!found)
die(_("unexpected wanted-ref: '%s'"), reader->line);
+ oidcpy(&(*found)->old_oid, &oid);
}
if (reader->status != PACKET_READ_DELIM)
@@ -1334,6 +1362,8 @@ 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);
@@ -1408,7 +1438,7 @@ 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);
@@ -1612,9 +1642,8 @@ static int iterate_ref_map(void *cb_data, struct object_id *oid)
}
struct ref *fetch_pack(struct fetch_pack_args *args,
- int fd[], struct child_process *conn,
+ int fd[],
const struct ref *ref,
- const char *dest,
struct ref **sought, int nr_sought,
struct oid_array *shallow,
char **pack_lockfile,
@@ -1622,6 +1651,7 @@ 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)
@@ -1645,13 +1675,18 @@ 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) {
@@ -1673,6 +1708,7 @@ 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;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 22:53:54 +0000