static struct command *read_head_info(struct sha1_array *shallow)
{
struct command *commands = NULL;
struct command **p = &commands;
for (;;) {
char *line;
unsigned char old_sha1[20], new_sha1[20];
struct command *cmd;
char *refname;
int len, reflen;
line = packet_read_line(0, &len);
if (!line)
break;
if (len == 48 && starts_with(line, "shallow ")) {
if (get_sha1_hex(line + 8, old_sha1))
die("protocol error: expected shallow sha, got '%s'", line + 8);
sha1_array_append(shallow, old_sha1);
continue;
}
if (len < 83 ||
line[40] != ' ' ||
line[81] != ' ' ||
get_sha1_hex(line, old_sha1) ||
get_sha1_hex(line + 41, new_sha1))
die("protocol error: expected old/new/ref, got '%s'",
line);
refname = line + 82;
reflen = strlen(refname);
if (reflen + 82 < len) {
const char *feature_list = refname + reflen + 1;
if (parse_feature_request(feature_list, "report-status"))
report_status = 1;
if (parse_feature_request(feature_list, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
if (parse_feature_request(feature_list, "quiet"))
quiet = 1;
}
cmd = xcalloc(1, sizeof(struct command) + len - 80);
hashcpy(cmd->old_sha1, old_sha1);
hashcpy(cmd->new_sha1, new_sha1);
memcpy(cmd->ref_name, line + 82, len - 81);
*p = cmd;
p = &cmd->next;
}
return commands;
}
static struct command *read_head_info(void)
{
struct command *commands = NULL;
struct command **p = &commands;
for (;;) {
static char line[1000];
unsigned char old_sha1[20], new_sha1[20];
struct command *cmd;
char *refname;
int len, reflen;
len = packet_read_line(0, line, sizeof(line));
if (!len)
break;
if (line[len-1] == '\n')
line[--len] = 0;
if (len < 83 ||
line[40] != ' ' ||
line[81] != ' ' ||
get_sha1_hex(line, old_sha1) ||
get_sha1_hex(line + 41, new_sha1))
die("protocol error: expected old/new/ref, got '%s'",
line);
refname = line + 82;
reflen = strlen(refname);
if (reflen + 82 < len) {
const char *feature_list = refname + reflen + 1;
if (parse_feature_request(feature_list, "report-status"))
report_status = 1;
if (parse_feature_request(feature_list, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
if (parse_feature_request(feature_list, "quiet"))
quiet = 1;
}
cmd = xcalloc(1, sizeof(struct command) + len - 80);
hashcpy(cmd->old_sha1, old_sha1);
hashcpy(cmd->new_sha1, new_sha1);
memcpy(cmd->ref_name, line + 82, len - 81);
*p = cmd;
p = &cmd->next;
}
return commands;
}
int server_supports_feature(const char *c, const char *feature,
int die_on_error)
{
int i;
for (i = 0; i < server_capabilities_v2.argc; i++) {
const char *out;
if (skip_prefix(server_capabilities_v2.argv[i], c, &out) &&
(!*out || *(out++) == '=')) {
if (parse_feature_request(out, feature))
return 1;
else
break;
}
}
if (die_on_error)
die(_("server doesn't support feature '%s'"), feature);
return 0;
}
static void receive_needs(void)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
int depth = 0;
int has_non_tip = 0;
shallow_nr = 0;
for (;;) {
struct object *o;
const char *features;
unsigned char sha1_buf[20];
char *line = packet_read_line(0, NULL);
reset_timeout();
if (!line)
break;
if (starts_with(line, "shallow ")) {
unsigned char sha1[20];
struct object *object;
if (get_sha1_hex(line + 8, sha1))
die("invalid shallow line: %s", line);
object = parse_object(sha1);
if (!object)
continue;
if (object->type != OBJ_COMMIT)
die("invalid shallow object %s", sha1_to_hex(sha1));
if (!(object->flags & CLIENT_SHALLOW)) {
object->flags |= CLIENT_SHALLOW;
add_object_array(object, NULL, &shallows);
}
continue;
}
if (starts_with(line, "deepen ")) {
char *end;
depth = strtol(line + 7, &end, 0);
if (end == line + 7 || depth <= 0)
die("Invalid deepen: %s", line);
continue;
}
if (!starts_with(line, "want ") ||
get_sha1_hex(line+5, sha1_buf))
die("git upload-pack: protocol error, "
"expected to get sha, not '%s'", line);
features = line + 45;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
multi_ack = 1;
if (parse_feature_request(features, "no-done"))
no_done = 1;
if (parse_feature_request(features, "thin-pack"))
use_thin_pack = 1;
if (parse_feature_request(features, "ofs-delta"))
use_ofs_delta = 1;
if (parse_feature_request(features, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
else if (parse_feature_request(features, "side-band"))
use_sideband = DEFAULT_PACKET_MAX;
if (parse_feature_request(features, "no-progress"))
no_progress = 1;
if (parse_feature_request(features, "include-tag"))
use_include_tag = 1;
o = parse_object(sha1_buf);
if (!o)
die("git upload-pack: not our ref %s",
sha1_to_hex(sha1_buf));
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
if (!is_our_ref(o))
has_non_tip = 1;
add_object_array(o, NULL, &want_obj);
}
}
/*
* We have sent all our refs already, and the other end
* should have chosen out of them. When we are operating
* in the stateless RPC mode, however, their choice may
* have been based on the set of older refs advertised
* by another process that handled the initial request.
*/
if (has_non_tip)
check_non_tip();
if (!use_sideband && daemon_mode)
no_progress = 1;
if (depth == 0 && shallows.nr == 0)
return;
if (depth > 0) {
struct commit_list *result = NULL, *backup = NULL;
int i;
if (depth == INFINITE_DEPTH && !is_repository_shallow())
for (i = 0; i < shallows.nr; i++) {
struct object *object = shallows.objects[i].item;
object->flags |= NOT_SHALLOW;
}
else
backup = result =
get_shallow_commits(&want_obj, depth,
SHALLOW, NOT_SHALLOW);
while (result) {
struct object *object = &result->item->object;
if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
packet_write(1, "shallow %s",
sha1_to_hex(object->sha1));
register_shallow(object->sha1);
shallow_nr++;
}
result = result->next;
}
free_commit_list(backup);
for (i = 0; i < shallows.nr; i++) {
struct object *object = shallows.objects[i].item;
if (object->flags & NOT_SHALLOW) {
struct commit_list *parents;
packet_write(1, "unshallow %s",
sha1_to_hex(object->sha1));
object->flags &= ~CLIENT_SHALLOW;
/* make sure the real parents are parsed */
unregister_shallow(object->sha1);
object->parsed = 0;
parse_commit_or_die((struct commit *)object);
parents = ((struct commit *)object)->parents;
while (parents) {
add_object_array(&parents->item->object,
NULL, &want_obj);
parents = parents->next;
}
add_object_array(object, NULL, &extra_edge_obj);
}
/* make sure commit traversal conforms to client */
register_shallow(object->sha1);
}
packet_flush(1);
} else
if (shallows.nr > 0) {
int i;
for (i = 0; i < shallows.nr; i++)
register_shallow(shallows.objects[i].item->sha1);
}
shallow_nr += shallows.nr;
free(shallows.objects);
}
static struct command *read_head_info(struct sha1_array *shallow)
{
struct command *commands = NULL;
struct command **p = &commands;
for (;;) {
char *line;
int len, linelen;
line = packet_read_line(0, &len);
if (!line)
break;
if (len == 48 && starts_with(line, "shallow ")) {
unsigned char sha1[20];
if (get_sha1_hex(line + 8, sha1))
die("protocol error: expected shallow sha, got '%s'",
line + 8);
sha1_array_append(shallow, sha1);
continue;
}
linelen = strlen(line);
if (linelen < len) {
const char *feature_list = line + linelen + 1;
if (parse_feature_request(feature_list, "report-status"))
report_status = 1;
if (parse_feature_request(feature_list, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
if (parse_feature_request(feature_list, "quiet"))
quiet = 1;
if (advertise_atomic_push
&& parse_feature_request(feature_list, "atomic"))
use_atomic = 1;
if (advertise_push_options
&& parse_feature_request(feature_list, "push-options"))
use_push_options = 1;
}
if (!strcmp(line, "push-cert")) {
int true_flush = 0;
char certbuf[1024];
for (;;) {
len = packet_read(0, NULL, NULL,
certbuf, sizeof(certbuf), 0);
if (!len) {
true_flush = 1;
break;
}
if (!strcmp(certbuf, "push-cert-end\n"))
break; /* end of cert */
strbuf_addstr(&push_cert, certbuf);
}
if (true_flush)
break;
continue;
}
p = queue_command(p, line, linelen);
}
if (push_cert.len)
queue_commands_from_cert(p, &push_cert);
return commands;
}
static void receive_needs(void)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
struct string_list deepen_not = STRING_LIST_INIT_DUP;
int depth = 0;
int has_non_tip = 0;
timestamp_t deepen_since = 0;
int deepen_rev_list = 0;
shallow_nr = 0;
for (;;) {
struct object *o;
const char *features;
struct object_id oid_buf;
char *line = packet_read_line(0, NULL);
const char *arg;
reset_timeout();
if (!line)
break;
if (process_shallow(line, &shallows))
continue;
if (process_deepen(line, &depth))
continue;
if (process_deepen_since(line, &deepen_since, &deepen_rev_list))
continue;
if (process_deepen_not(line, &deepen_not, &deepen_rev_list))
continue;
if (skip_prefix(line, "filter ", &arg)) {
if (!filter_capability_requested)
die("git upload-pack: filtering capability not negotiated");
parse_list_objects_filter(&filter_options, arg);
continue;
}
if (!skip_prefix(line, "want ", &arg) ||
parse_oid_hex(arg, &oid_buf, &features))
die("git upload-pack: protocol error, "
"expected to get object ID, not '%s'", line);
if (parse_feature_request(features, "deepen-relative"))
deepen_relative = 1;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
multi_ack = 1;
if (parse_feature_request(features, "no-done"))
no_done = 1;
if (parse_feature_request(features, "thin-pack"))
use_thin_pack = 1;
if (parse_feature_request(features, "ofs-delta"))
use_ofs_delta = 1;
if (parse_feature_request(features, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
else if (parse_feature_request(features, "side-band"))
use_sideband = DEFAULT_PACKET_MAX;
if (parse_feature_request(features, "no-progress"))
no_progress = 1;
if (parse_feature_request(features, "include-tag"))
use_include_tag = 1;
if (allow_filter && parse_feature_request(features, "filter"))
filter_capability_requested = 1;
o = parse_object(&oid_buf);
if (!o) {
packet_write_fmt(1,
"ERR upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
die("git upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
}
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
if (!((allow_unadvertised_object_request & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1
|| is_our_ref(o)))
has_non_tip = 1;
add_object_array(o, NULL, &want_obj);
}
}
/*
* We have sent all our refs already, and the other end
* should have chosen out of them. When we are operating
* in the stateless RPC mode, however, their choice may
* have been based on the set of older refs advertised
* by another process that handled the initial request.
*/
if (has_non_tip)
check_non_tip();
if (!use_sideband && daemon_mode)
no_progress = 1;
if (depth == 0 && !deepen_rev_list && shallows.nr == 0)
return;
if (send_shallow_list(depth, deepen_rev_list, deepen_since,
&deepen_not, &shallows))
packet_flush(1);
object_array_clear(&shallows);
}
int server_supports(const char *feature)
{
return !!parse_feature_request(server_capabilities, feature);
}
static void receive_needs(void)
{
struct object_array shallows = OBJECT_ARRAY_INIT;
struct string_list deepen_not = STRING_LIST_INIT_DUP;
int depth = 0;
int has_non_tip = 0;
timestamp_t deepen_since = 0;
int deepen_rev_list = 0;
shallow_nr = 0;
for (;;) {
struct object *o;
const char *features;
struct object_id oid_buf;
char *line = packet_read_line(0, NULL);
const char *arg;
reset_timeout();
if (!line)
break;
if (skip_prefix(line, "shallow ", &arg)) {
struct object_id oid;
struct object *object;
if (get_oid_hex(arg, &oid))
die("invalid shallow line: %s", line);
object = parse_object(&oid);
if (!object)
continue;
if (object->type != OBJ_COMMIT)
die("invalid shallow object %s", oid_to_hex(&oid));
if (!(object->flags & CLIENT_SHALLOW)) {
object->flags |= CLIENT_SHALLOW;
add_object_array(object, NULL, &shallows);
}
continue;
}
if (skip_prefix(line, "deepen ", &arg)) {
char *end = NULL;
depth = strtol(arg, &end, 0);
if (!end || *end || depth <= 0)
die("Invalid deepen: %s", line);
continue;
}
if (skip_prefix(line, "deepen-since ", &arg)) {
char *end = NULL;
deepen_since = parse_timestamp(arg, &end, 0);
if (!end || *end || !deepen_since ||
/* revisions.c's max_age -1 is special */
deepen_since == -1)
die("Invalid deepen-since: %s", line);
deepen_rev_list = 1;
continue;
}
if (skip_prefix(line, "deepen-not ", &arg)) {
char *ref = NULL;
struct object_id oid;
if (expand_ref(arg, strlen(arg), &oid, &ref) != 1)
die("git upload-pack: ambiguous deepen-not: %s", line);
string_list_append(&deepen_not, ref);
free(ref);
deepen_rev_list = 1;
continue;
}
if (skip_prefix(line, "filter ", &arg)) {
if (!filter_capability_requested)
die("git upload-pack: filtering capability not negotiated");
parse_list_objects_filter(&filter_options, arg);
continue;
}
if (!skip_prefix(line, "want ", &arg) ||
get_oid_hex(arg, &oid_buf))
die("git upload-pack: protocol error, "
"expected to get sha, not '%s'", line);
features = arg + 40;
if (parse_feature_request(features, "deepen-relative"))
deepen_relative = 1;
if (parse_feature_request(features, "multi_ack_detailed"))
multi_ack = 2;
else if (parse_feature_request(features, "multi_ack"))
multi_ack = 1;
if (parse_feature_request(features, "no-done"))
no_done = 1;
if (parse_feature_request(features, "thin-pack"))
use_thin_pack = 1;
if (parse_feature_request(features, "ofs-delta"))
use_ofs_delta = 1;
if (parse_feature_request(features, "side-band-64k"))
use_sideband = LARGE_PACKET_MAX;
else if (parse_feature_request(features, "side-band"))
use_sideband = DEFAULT_PACKET_MAX;
if (parse_feature_request(features, "no-progress"))
no_progress = 1;
if (parse_feature_request(features, "include-tag"))
use_include_tag = 1;
if (allow_filter && parse_feature_request(features, "filter"))
filter_capability_requested = 1;
o = parse_object(&oid_buf);
if (!o) {
packet_write_fmt(1,
"ERR upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
die("git upload-pack: not our ref %s",
oid_to_hex(&oid_buf));
}
if (!(o->flags & WANTED)) {
o->flags |= WANTED;
if (!((allow_unadvertised_object_request & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1
|| is_our_ref(o)))
has_non_tip = 1;
add_object_array(o, NULL, &want_obj);
}
}
/*
* We have sent all our refs already, and the other end
* should have chosen out of them. When we are operating
* in the stateless RPC mode, however, their choice may
* have been based on the set of older refs advertised
* by another process that handled the initial request.
*/
if (has_non_tip)
check_non_tip();
if (!use_sideband && daemon_mode)
no_progress = 1;
if (depth == 0 && !deepen_rev_list && shallows.nr == 0)
return;
if (depth > 0 && deepen_rev_list)
die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together");
if (depth > 0)
deepen(depth, deepen_relative, &shallows);
else if (deepen_rev_list) {
struct argv_array av = ARGV_ARRAY_INIT;
int i;
argv_array_push(&av, "rev-list");
if (deepen_since)
argv_array_pushf(&av, "--max-age=%"PRItime, deepen_since);
if (deepen_not.nr) {
argv_array_push(&av, "--not");
for (i = 0; i < deepen_not.nr; i++) {
struct string_list_item *s = deepen_not.items + i;
argv_array_push(&av, s->string);
}
argv_array_push(&av, "--not");
}
for (i = 0; i < want_obj.nr; i++) {
struct object *o = want_obj.objects[i].item;
argv_array_push(&av, oid_to_hex(&o->oid));
}
deepen_by_rev_list(av.argc, av.argv, &shallows);
argv_array_clear(&av);
}
else
if (shallows.nr > 0) {
int i;
for (i = 0; i < shallows.nr; i++)
register_shallow(&shallows.objects[i].item->oid);
}
shallow_nr += shallows.nr;
object_array_clear(&shallows);
}