6 #include "run-command.h"
10 #include "transport.h"
13 static const char send_pack_usage[] =
14 "git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
15 " --all and explicit <ref> specification are mutually exclusive.";
17 static struct send_pack_args args;
19 static int feed_object(const unsigned char *sha1, int fd, int negative)
23 if (negative && !has_sha1_file(sha1))
26 memcpy(buf + negative, sha1_to_hex(sha1), 40);
29 buf[40 + negative] = '\n';
30 return write_or_whine(fd, buf, 41 + negative, "send-pack: send refs");
34 * Make a pack stream and spit it out into file descriptor fd
36 static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra, struct send_pack_args *args)
39 * The child becomes pack-objects --revs; we feed
40 * the revision parameters to it via its stdin and
41 * let its stdout go back to the other end.
43 const char *argv[] = {
45 "--all-progress-implied",
54 struct child_process po;
58 if (args->use_thin_pack)
60 if (args->use_ofs_delta)
61 argv[i++] = "--delta-base-offset";
62 if (args->quiet || !args->progress)
65 argv[i++] = "--progress";
66 memset(&po, 0, sizeof(po));
69 po.out = args->stateless_rpc ? -1 : fd;
71 if (start_command(&po))
72 die_errno("git pack-objects failed");
75 * We feed the pack-objects we just spawned with revision
76 * parameters by writing to the pipe.
78 for (i = 0; i < extra->nr; i++)
79 if (!feed_object(extra->array[i], po.in, 1))
83 if (!is_null_sha1(refs->old_sha1) &&
84 !feed_object(refs->old_sha1, po.in, 1))
86 if (!is_null_sha1(refs->new_sha1) &&
87 !feed_object(refs->new_sha1, po.in, 0))
94 if (args->stateless_rpc) {
95 char *buf = xmalloc(LARGE_PACKET_MAX);
97 ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX);
100 send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX);
107 if (finish_command(&po))
112 static int receive_status(int in, struct ref *refs)
117 int len = packet_read_line(in, line, sizeof(line));
118 if (len < 10 || memcmp(line, "unpack ", 7))
119 return error("did not receive remote status");
120 if (memcmp(line, "unpack ok\n", 10)) {
121 char *p = line + strlen(line) - 1;
124 error("unpack failed: %s", line + 7);
131 len = packet_read_line(in, line, sizeof(line));
135 (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3))) {
136 fprintf(stderr, "protocol error: %s\n", line);
141 line[strlen(line)-1] = '\0';
143 msg = strchr(refname, ' ');
147 /* first try searching at our hint, falling back to all refs */
149 hint = find_ref_by_name(hint, refname);
151 hint = find_ref_by_name(refs, refname);
153 warning("remote reported status on unknown ref: %s",
157 if (hint->status != REF_STATUS_EXPECTING_REPORT) {
158 warning("remote reported status on unexpected ref: %s",
163 if (line[0] == 'o' && line[1] == 'k')
164 hint->status = REF_STATUS_OK;
166 hint->status = REF_STATUS_REMOTE_REJECT;
170 hint->remote_status = xstrdup(msg);
171 /* start our next search from the next ref */
177 static void print_helper_status(struct ref *ref)
179 struct strbuf buf = STRBUF_INIT;
181 for (; ref; ref = ref->next) {
182 const char *msg = NULL;
185 switch(ref->status) {
186 case REF_STATUS_NONE:
195 case REF_STATUS_UPTODATE:
200 case REF_STATUS_REJECT_NONFASTFORWARD:
202 msg = "non-fast forward";
205 case REF_STATUS_REJECT_NODELETE:
206 case REF_STATUS_REMOTE_REJECT:
210 case REF_STATUS_EXPECTING_REPORT:
216 strbuf_addf(&buf, "%s %s", res, ref->name);
217 if (ref->remote_status)
218 msg = ref->remote_status;
220 strbuf_addch(&buf, ' ');
221 quote_two_c_style(&buf, "", msg, 0);
223 strbuf_addch(&buf, '\n');
225 safe_write(1, buf.buf, buf.len);
227 strbuf_release(&buf);
230 static int sideband_demux(int in, int out, void *data)
236 ret = recv_sideband("send-pack", fd[0], out);
241 int send_pack(struct send_pack_args *args,
242 int fd[], struct child_process *conn,
243 struct ref *remote_refs,
244 struct extra_have_objects *extra_have)
248 struct strbuf req_buf = STRBUF_INIT;
251 int allow_deleting_refs = 0;
252 int status_report = 0;
253 int use_sideband = 0;
254 int quiet_supported = 0;
255 unsigned cmds_sent = 0;
259 /* Does the other end support the reporting? */
260 if (server_supports("report-status"))
262 if (server_supports("delete-refs"))
263 allow_deleting_refs = 1;
264 if (server_supports("ofs-delta"))
265 args->use_ofs_delta = 1;
266 if (server_supports("side-band-64k"))
268 if (server_supports("quiet"))
272 fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
273 "Perhaps you should specify a branch such as 'master'.\n");
278 * Finally, tell the other end!
281 for (ref = remote_refs; ref; ref = ref->next) {
282 if (!ref->peer_ref && !args->send_mirror)
285 /* Check for statuses set by set_ref_status_for_push() */
286 switch (ref->status) {
287 case REF_STATUS_REJECT_NONFASTFORWARD:
288 case REF_STATUS_UPTODATE:
294 if (ref->deletion && !allow_deleting_refs) {
295 ref->status = REF_STATUS_REJECT_NODELETE;
303 ref->status = REF_STATUS_OK;
305 char *old_hex = sha1_to_hex(ref->old_sha1);
306 char *new_hex = sha1_to_hex(ref->new_sha1);
307 int quiet = quiet_supported && (args->quiet || !args->progress);
309 if (!cmds_sent && (status_report || use_sideband || quiet)) {
310 packet_buf_write(&req_buf,
311 "%s %s %s%c%s%s%s agent=%s",
312 old_hex, new_hex, ref->name, 0,
313 status_report ? " report-status" : "",
314 use_sideband ? " side-band-64k" : "",
315 quiet ? " quiet" : "",
316 git_user_agent_sanitized());
319 packet_buf_write(&req_buf, "%s %s %s",
320 old_hex, new_hex, ref->name);
321 ref->status = status_report ?
322 REF_STATUS_EXPECTING_REPORT :
328 if (args->stateless_rpc) {
329 if (!args->dry_run && cmds_sent) {
330 packet_buf_flush(&req_buf);
331 send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX);
334 safe_write(out, req_buf.buf, req_buf.len);
337 strbuf_release(&req_buf);
339 if (use_sideband && cmds_sent) {
340 memset(&demux, 0, sizeof(demux));
341 demux.proc = sideband_demux;
344 if (start_async(&demux))
345 die("send-pack: unable to fork off sideband demultiplexer");
349 if (new_refs && cmds_sent) {
350 if (pack_objects(out, remote_refs, extra_have, args) < 0) {
351 for (ref = remote_refs; ref; ref = ref->next)
352 ref->status = REF_STATUS_NONE;
353 if (args->stateless_rpc)
355 if (git_connection_is_socket(conn))
356 shutdown(fd[0], SHUT_WR);
358 finish_async(&demux);
362 if (args->stateless_rpc && cmds_sent)
365 if (status_report && cmds_sent)
366 ret = receive_status(in, remote_refs);
369 if (args->stateless_rpc)
372 if (use_sideband && cmds_sent) {
373 if (finish_async(&demux)) {
374 error("error in sideband demultiplexer");
386 for (ref = remote_refs; ref; ref = ref->next) {
387 switch (ref->status) {
388 case REF_STATUS_NONE:
389 case REF_STATUS_UPTODATE:
399 int cmd_send_pack(int argc, const char **argv, const char *prefix)
401 int i, nr_refspecs = 0;
402 const char **refspecs = NULL;
403 const char *remote_name = NULL;
404 struct remote *remote = NULL;
405 const char *dest = NULL;
407 struct child_process *conn;
408 struct extra_have_objects extra_have;
409 struct ref *remote_refs, *local_refs;
411 int helper_status = 0;
413 const char *receivepack = "git-receive-pack";
415 int nonfastforward = 0;
419 for (i = 1; i < argc; i++, argv++) {
420 const char *arg = *argv;
423 if (!prefixcmp(arg, "--receive-pack=")) {
424 receivepack = arg + 15;
427 if (!prefixcmp(arg, "--exec=")) {
428 receivepack = arg + 7;
431 if (!prefixcmp(arg, "--remote=")) {
432 remote_name = arg + 9;
435 if (!strcmp(arg, "--all")) {
439 if (!strcmp(arg, "--dry-run")) {
443 if (!strcmp(arg, "--mirror")) {
444 args.send_mirror = 1;
447 if (!strcmp(arg, "--force")) {
448 args.force_update = 1;
451 if (!strcmp(arg, "--quiet")) {
455 if (!strcmp(arg, "--verbose")) {
459 if (!strcmp(arg, "--progress")) {
463 if (!strcmp(arg, "--no-progress")) {
467 if (!strcmp(arg, "--thin")) {
468 args.use_thin_pack = 1;
471 if (!strcmp(arg, "--stateless-rpc")) {
472 args.stateless_rpc = 1;
475 if (!strcmp(arg, "--helper-status")) {
479 usage(send_pack_usage);
485 refspecs = (const char **) argv;
486 nr_refspecs = argc - i;
490 usage(send_pack_usage);
492 * --all and --mirror are incompatible; neither makes sense
495 if ((refspecs && (send_all || args.send_mirror)) ||
496 (send_all && args.send_mirror))
497 usage(send_pack_usage);
500 remote = remote_get(remote_name);
501 if (!remote_has_url(remote, dest)) {
502 die("Destination %s is not a uri for %s",
508 progress = !args.quiet && isatty(2);
509 args.progress = progress;
511 if (args.stateless_rpc) {
516 conn = git_connect(fd, dest, receivepack,
517 args.verbose ? CONNECT_VERBOSE : 0);
520 memset(&extra_have, 0, sizeof(extra_have));
522 get_remote_heads(fd[0], &remote_refs, REF_NORMAL, &extra_have);
524 transport_verify_remote_names(nr_refspecs, refspecs);
526 local_refs = get_local_heads();
528 flags = MATCH_REFS_NONE;
531 flags |= MATCH_REFS_ALL;
532 if (args.send_mirror)
533 flags |= MATCH_REFS_MIRROR;
536 if (match_push_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
539 set_ref_status_for_push(remote_refs, args.send_mirror,
542 ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
545 print_helper_status(remote_refs);
550 ret |= finish_connect(conn);
553 transport_print_push_status(dest, remote_refs, args.verbose, 0, &nonfastforward);
555 if (!args.dry_run && remote) {
557 for (ref = remote_refs; ref; ref = ref->next)
558 transport_update_tracking_ref(remote, ref, args.verbose);
561 if (!ret && !transport_refs_pushed(remote_refs))
562 fprintf(stderr, "Everything up-to-date\n");