static int process_haves_and_send_acks(struct upload_pack_data *data)
{
struct oid_array common = OID_ARRAY_INIT;
struct strbuf response = STRBUF_INIT;
int ret = 0;
process_haves(&data->haves, &common);
if (data->done) {
ret = 1;
} else if (send_acks(&common, &response)) {
packet_buf_delim(&response);
ret = 1;
} else {
/* Add Flush */
packet_buf_flush(&response);
ret = 0;
}
/* Send response */
write_or_die(1, response.buf, response.len);
strbuf_release(&response);
oid_array_clear(&data->haves);
oid_array_clear(&common);
return ret;
}
/*
* CURLOPT_READFUNCTION callback function.
* Attempts to copy over a single packet-line at a time into the
* curl provided buffer.
*/
static size_t proxy_in(char *buffer, size_t eltsize,
size_t nmemb, void *userdata)
{
size_t max;
struct proxy_state *p = userdata;
size_t avail = p->request_buffer.len - p->pos;
if (eltsize != 1)
BUG("curl read callback called with size = %"PRIuMAX" != 1",
(uintmax_t)eltsize);
max = nmemb;
if (!avail) {
if (p->seen_flush) {
p->seen_flush = 0;
return 0;
}
strbuf_reset(&p->request_buffer);
switch (packet_reader_read(&p->reader)) {
case PACKET_READ_EOF:
die("unexpected EOF when reading from parent process");
case PACKET_READ_NORMAL:
packet_buf_write_len(&p->request_buffer, p->reader.line,
p->reader.pktlen);
break;
case PACKET_READ_DELIM:
packet_buf_delim(&p->request_buffer);
break;
case PACKET_READ_FLUSH:
packet_buf_flush(&p->request_buffer);
p->seen_flush = 1;
break;
}
p->pos = 0;
avail = p->request_buffer.len;
}
if (max < avail)
avail = max;
memcpy(buffer, p->request_buffer.buf + p->pos, avail);
p->pos += avail;
return avail;
}
static int send_fetch_request(int fd_out, const struct fetch_pack_args *args,
const struct ref *wants, struct oidset *common,
int *haves_to_send, int *in_vain)
{
int ret = 0;
struct strbuf req_buf = STRBUF_INIT;
if (server_supports_v2("fetch", 1))
packet_buf_write(&req_buf, "command=fetch");
if (server_supports_v2("agent", 0))
packet_buf_write(&req_buf, "agent=%s", git_user_agent_sanitized());
packet_buf_delim(&req_buf);
if (args->use_thin_pack)
packet_buf_write(&req_buf, "thin-pack");
if (args->no_progress)
packet_buf_write(&req_buf, "no-progress");
if (args->include_tag)
packet_buf_write(&req_buf, "include-tag");
if (prefer_ofs_delta)
packet_buf_write(&req_buf, "ofs-delta");
/* Add shallow-info and deepen request */
if (server_supports_feature("fetch", "shallow", 0))
add_shallow_requests(&req_buf, args);
else if (is_repository_shallow() || args->deepen)
die(_("Server does not support shallow requests"));
/* add wants */
add_wants(wants, &req_buf);
/* Add all of the common commits we've found in previous rounds */
add_common(&req_buf, common);
/* Add initial haves */
ret = add_haves(&req_buf, haves_to_send, in_vain);
/* Send request */
packet_buf_flush(&req_buf);
write_or_die(fd_out, req_buf.buf, req_buf.len);
strbuf_release(&req_buf);
return ret;
}
static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out,
const struct fetch_pack_args *args,
const struct ref *wants, struct oidset *common,
int *haves_to_send, int *in_vain)
{
int ret = 0;
struct strbuf req_buf = STRBUF_INIT;
if (server_supports_v2("fetch", 1))
packet_buf_write(&req_buf, "command=fetch");
if (server_supports_v2("agent", 0))
packet_buf_write(&req_buf, "agent=%s", git_user_agent_sanitized());
if (args->server_options && args->server_options->nr &&
server_supports_v2("server-option", 1)) {
int i;
for (i = 0; i < args->server_options->nr; i++)
packet_write_fmt(fd_out, "server-option=%s",
args->server_options->items[i].string);
}
packet_buf_delim(&req_buf);
if (args->use_thin_pack)
packet_buf_write(&req_buf, "thin-pack");
if (args->no_progress)
packet_buf_write(&req_buf, "no-progress");
if (args->include_tag)
packet_buf_write(&req_buf, "include-tag");
if (prefer_ofs_delta)
packet_buf_write(&req_buf, "ofs-delta");
/* Add shallow-info and deepen request */
if (server_supports_feature("fetch", "shallow", 0))
add_shallow_requests(&req_buf, args);
else if (is_repository_shallow(the_repository) || args->deepen)
die(_("Server does not support shallow requests"));
/* Add filter */
if (server_supports_feature("fetch", "filter", 0) &&
args->filter_options.choice) {
print_verbose(args, _("Server supports filter"));
packet_buf_write(&req_buf, "filter %s",
args->filter_options.filter_spec);
} else if (args->filter_options.choice) {
warning("filtering not recognized by server, ignoring");
}
/* add wants */
add_wants(args->no_dependents, wants, &req_buf);
if (args->no_dependents) {
packet_buf_write(&req_buf, "done");
ret = 1;
} else {
/* Add all of the common commits we've found in previous rounds */
add_common(&req_buf, common);
/* Add initial haves */
ret = add_haves(negotiator, &req_buf, haves_to_send, in_vain);
}
/* Send request */
packet_buf_flush(&req_buf);
write_or_die(fd_out, req_buf.buf, req_buf.len);
strbuf_release(&req_buf);
return ret;
}
