6 #include "run-command.h"
10 #include "transport.h"
13 static int feed_object(const unsigned char *sha1, int fd, int negative)
17 if (negative && !has_sha1_file(sha1))
20 memcpy(buf + negative, sha1_to_hex(sha1), 40);
23 buf[40 + negative] = '\n';
24 return write_or_whine(fd, buf, 41 + negative, "send-pack: send refs");
28 * Make a pack stream and spit it out into file descriptor fd
30 static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra, struct send_pack_args *args)
33 * The child becomes pack-objects --revs; we feed
34 * the revision parameters to it via its stdin and
35 * let its stdout go back to the other end.
37 const char *argv[] = {
39 "--all-progress-implied",
48 struct child_process po;
52 if (args->use_thin_pack)
54 if (args->use_ofs_delta)
55 argv[i++] = "--delta-base-offset";
56 if (args->quiet || !args->progress)
59 argv[i++] = "--progress";
60 memset(&po, 0, sizeof(po));
63 po.out = args->stateless_rpc ? -1 : fd;
65 if (start_command(&po))
66 die_errno("git pack-objects failed");
69 * We feed the pack-objects we just spawned with revision
70 * parameters by writing to the pipe.
72 for (i = 0; i < extra->nr; i++)
73 if (!feed_object(extra->array[i], po.in, 1))
77 if (!is_null_sha1(refs->old_sha1) &&
78 !feed_object(refs->old_sha1, po.in, 1))
80 if (!is_null_sha1(refs->new_sha1) &&
81 !feed_object(refs->new_sha1, po.in, 0))
88 if (args->stateless_rpc) {
89 char *buf = xmalloc(LARGE_PACKET_MAX);
91 ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX);
94 send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX);
101 if (finish_command(&po))
106 static int receive_status(int in, struct ref *refs)
111 int len = packet_read_line(in, line, sizeof(line));
112 if (prefixcmp(line, "unpack "))
113 return error("did not receive remote status");
114 if (strcmp(line, "unpack ok\n")) {
115 char *p = line + strlen(line) - 1;
118 error("unpack failed: %s", line + 7);
125 len = packet_read_line(in, line, sizeof(line));
128 if (prefixcmp(line, "ok ") && prefixcmp(line, "ng ")) {
129 error("invalid ref status from remote: %s", line);
134 line[strlen(line)-1] = '\0';
136 msg = strchr(refname, ' ');
140 /* first try searching at our hint, falling back to all refs */
142 hint = find_ref_by_name(hint, refname);
144 hint = find_ref_by_name(refs, refname);
146 warning("remote reported status on unknown ref: %s",
150 if (hint->status != REF_STATUS_EXPECTING_REPORT) {
151 warning("remote reported status on unexpected ref: %s",
156 if (line[0] == 'o' && line[1] == 'k')
157 hint->status = REF_STATUS_OK;
159 hint->status = REF_STATUS_REMOTE_REJECT;
163 hint->remote_status = xstrdup(msg);
164 /* start our next search from the next ref */
170 static int sideband_demux(int in, int out, void *data)
176 ret = recv_sideband("send-pack", fd[0], out);
181 int send_pack(struct send_pack_args *args,
182 int fd[], struct child_process *conn,
183 struct ref *remote_refs,
184 struct extra_have_objects *extra_have)
188 struct strbuf req_buf = STRBUF_INIT;
191 int allow_deleting_refs = 0;
192 int status_report = 0;
193 int use_sideband = 0;
194 int quiet_supported = 0;
195 int agent_supported = 0;
196 unsigned cmds_sent = 0;
200 /* Does the other end support the reporting? */
201 if (server_supports("report-status"))
203 if (server_supports("delete-refs"))
204 allow_deleting_refs = 1;
205 if (server_supports("ofs-delta"))
206 args->use_ofs_delta = 1;
207 if (server_supports("side-band-64k"))
209 if (server_supports("quiet"))
211 if (server_supports("agent"))
215 fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
216 "Perhaps you should specify a branch such as 'master'.\n");
221 * Finally, tell the other end!
224 for (ref = remote_refs; ref; ref = ref->next) {
225 if (!ref->peer_ref && !args->send_mirror)
228 /* Check for statuses set by set_ref_status_for_push() */
229 switch (ref->status) {
230 case REF_STATUS_REJECT_NONFASTFORWARD:
231 case REF_STATUS_REJECT_ALREADY_EXISTS:
232 case REF_STATUS_REJECT_FETCH_FIRST:
233 case REF_STATUS_REJECT_NEEDS_FORCE:
234 case REF_STATUS_UPTODATE:
240 if (ref->deletion && !allow_deleting_refs) {
241 ref->status = REF_STATUS_REJECT_NODELETE;
249 ref->status = REF_STATUS_OK;
251 char *old_hex = sha1_to_hex(ref->old_sha1);
252 char *new_hex = sha1_to_hex(ref->new_sha1);
253 int quiet = quiet_supported && (args->quiet || !args->progress);
255 if (!cmds_sent && (status_report || use_sideband ||
256 quiet || agent_supported)) {
257 packet_buf_write(&req_buf,
258 "%s %s %s%c%s%s%s%s%s",
259 old_hex, new_hex, ref->name, 0,
260 status_report ? " report-status" : "",
261 use_sideband ? " side-band-64k" : "",
262 quiet ? " quiet" : "",
263 agent_supported ? " agent=" : "",
264 agent_supported ? git_user_agent_sanitized() : ""
268 packet_buf_write(&req_buf, "%s %s %s",
269 old_hex, new_hex, ref->name);
270 ref->status = status_report ?
271 REF_STATUS_EXPECTING_REPORT :
277 if (args->stateless_rpc) {
278 if (!args->dry_run && cmds_sent) {
279 packet_buf_flush(&req_buf);
280 send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX);
283 write_or_die(out, req_buf.buf, req_buf.len);
286 strbuf_release(&req_buf);
288 if (use_sideband && cmds_sent) {
289 memset(&demux, 0, sizeof(demux));
290 demux.proc = sideband_demux;
293 if (start_async(&demux))
294 die("send-pack: unable to fork off sideband demultiplexer");
298 if (new_refs && cmds_sent) {
299 if (pack_objects(out, remote_refs, extra_have, args) < 0) {
300 for (ref = remote_refs; ref; ref = ref->next)
301 ref->status = REF_STATUS_NONE;
302 if (args->stateless_rpc)
304 if (git_connection_is_socket(conn))
305 shutdown(fd[0], SHUT_WR);
307 finish_async(&demux);
311 if (args->stateless_rpc && cmds_sent)
314 if (status_report && cmds_sent)
315 ret = receive_status(in, remote_refs);
318 if (args->stateless_rpc)
321 if (use_sideband && cmds_sent) {
322 if (finish_async(&demux)) {
323 error("error in sideband demultiplexer");
335 for (ref = remote_refs; ref; ref = ref->next) {
336 switch (ref->status) {
337 case REF_STATUS_NONE:
338 case REF_STATUS_UPTODATE: