i18n: verify-tag: mark parseopt strings for translation
[git/jnareb-git.git] / remote-curl.c
blob04a9d6277db8fac78cb223a906b12744aab32193
1 #include "cache.h"
2 #include "remote.h"
3 #include "strbuf.h"
4 #include "walker.h"
5 #include "http.h"
6 #include "exec_cmd.h"
7 #include "run-command.h"
8 #include "pkt-line.h"
9 #include "sideband.h"
11 static struct remote *remote;
12 static const char *url; /* always ends with a trailing slash */
14 struct options {
15 int verbosity;
16 unsigned long depth;
17 unsigned progress : 1,
18 followtags : 1,
19 dry_run : 1,
20 thin : 1;
22 static struct options options;
24 static int set_option(const char *name, const char *value)
26 if (!strcmp(name, "verbosity")) {
27 char *end;
28 int v = strtol(value, &end, 10);
29 if (value == end || *end)
30 return -1;
31 options.verbosity = v;
32 return 0;
34 else if (!strcmp(name, "progress")) {
35 if (!strcmp(value, "true"))
36 options.progress = 1;
37 else if (!strcmp(value, "false"))
38 options.progress = 0;
39 else
40 return -1;
41 return 0;
43 else if (!strcmp(name, "depth")) {
44 char *end;
45 unsigned long v = strtoul(value, &end, 10);
46 if (value == end || *end)
47 return -1;
48 options.depth = v;
49 return 0;
51 else if (!strcmp(name, "followtags")) {
52 if (!strcmp(value, "true"))
53 options.followtags = 1;
54 else if (!strcmp(value, "false"))
55 options.followtags = 0;
56 else
57 return -1;
58 return 0;
60 else if (!strcmp(name, "dry-run")) {
61 if (!strcmp(value, "true"))
62 options.dry_run = 1;
63 else if (!strcmp(value, "false"))
64 options.dry_run = 0;
65 else
66 return -1;
67 return 0;
69 else {
70 return 1 /* unsupported */;
74 struct discovery {
75 const char *service;
76 char *buf_alloc;
77 char *buf;
78 size_t len;
79 unsigned proto_git : 1;
81 static struct discovery *last_discovery;
83 static void free_discovery(struct discovery *d)
85 if (d) {
86 if (d == last_discovery)
87 last_discovery = NULL;
88 free(d->buf_alloc);
89 free(d);
93 static struct discovery* discover_refs(const char *service)
95 struct strbuf buffer = STRBUF_INIT;
96 struct discovery *last = last_discovery;
97 char *refs_url;
98 int http_ret, is_http = 0, proto_git_candidate = 1;
100 if (last && !strcmp(service, last->service))
101 return last;
102 free_discovery(last);
104 strbuf_addf(&buffer, "%sinfo/refs", url);
105 if (!prefixcmp(url, "http://") || !prefixcmp(url, "https://")) {
106 is_http = 1;
107 if (!strchr(url, '?'))
108 strbuf_addch(&buffer, '?');
109 else
110 strbuf_addch(&buffer, '&');
111 strbuf_addf(&buffer, "service=%s", service);
113 refs_url = strbuf_detach(&buffer, NULL);
115 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
117 /* try again with "plain" url (no ? or & appended) */
118 if (http_ret != HTTP_OK && http_ret != HTTP_NOAUTH) {
119 free(refs_url);
120 strbuf_reset(&buffer);
122 proto_git_candidate = 0;
123 strbuf_addf(&buffer, "%sinfo/refs", url);
124 refs_url = strbuf_detach(&buffer, NULL);
126 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
129 switch (http_ret) {
130 case HTTP_OK:
131 break;
132 case HTTP_MISSING_TARGET:
133 die("%s not found: did you run git update-server-info on the"
134 " server?", refs_url);
135 case HTTP_NOAUTH:
136 die("Authentication failed");
137 default:
138 http_error(refs_url, http_ret);
139 die("HTTP request failed");
142 last= xcalloc(1, sizeof(*last_discovery));
143 last->service = service;
144 last->buf_alloc = strbuf_detach(&buffer, &last->len);
145 last->buf = last->buf_alloc;
147 if (is_http && proto_git_candidate
148 && 5 <= last->len && last->buf[4] == '#') {
149 /* smart HTTP response; validate that the service
150 * pkt-line matches our request.
152 struct strbuf exp = STRBUF_INIT;
154 if (packet_get_line(&buffer, &last->buf, &last->len) <= 0)
155 die("%s has invalid packet header", refs_url);
156 if (buffer.len && buffer.buf[buffer.len - 1] == '\n')
157 strbuf_setlen(&buffer, buffer.len - 1);
159 strbuf_addf(&exp, "# service=%s", service);
160 if (strbuf_cmp(&exp, &buffer))
161 die("invalid server response; got '%s'", buffer.buf);
162 strbuf_release(&exp);
164 /* The header can include additional metadata lines, up
165 * until a packet flush marker. Ignore these now, but
166 * in the future we might start to scan them.
168 strbuf_reset(&buffer);
169 while (packet_get_line(&buffer, &last->buf, &last->len) > 0)
170 strbuf_reset(&buffer);
172 last->proto_git = 1;
175 free(refs_url);
176 strbuf_release(&buffer);
177 last_discovery = last;
178 return last;
181 static int write_discovery(int in, int out, void *data)
183 struct discovery *heads = data;
184 int err = 0;
185 if (write_in_full(out, heads->buf, heads->len) != heads->len)
186 err = 1;
187 close(out);
188 return err;
191 static struct ref *parse_git_refs(struct discovery *heads, int for_push)
193 struct ref *list = NULL;
194 struct async async;
196 memset(&async, 0, sizeof(async));
197 async.proc = write_discovery;
198 async.data = heads;
199 async.out = -1;
201 if (start_async(&async))
202 die("cannot start thread to parse advertised refs");
203 get_remote_heads(async.out, &list,
204 for_push ? REF_NORMAL : 0, NULL);
205 close(async.out);
206 if (finish_async(&async))
207 die("ref parsing thread failed");
208 return list;
211 static struct ref *parse_info_refs(struct discovery *heads)
213 char *data, *start, *mid;
214 char *ref_name;
215 int i = 0;
217 struct ref *refs = NULL;
218 struct ref *ref = NULL;
219 struct ref *last_ref = NULL;
221 data = heads->buf;
222 start = NULL;
223 mid = data;
224 while (i < heads->len) {
225 if (!start) {
226 start = &data[i];
228 if (data[i] == '\t')
229 mid = &data[i];
230 if (data[i] == '\n') {
231 if (mid - start != 40)
232 die("%sinfo/refs not valid: is this a git repository?", url);
233 data[i] = 0;
234 ref_name = mid + 1;
235 ref = xmalloc(sizeof(struct ref) +
236 strlen(ref_name) + 1);
237 memset(ref, 0, sizeof(struct ref));
238 strcpy(ref->name, ref_name);
239 get_sha1_hex(start, ref->old_sha1);
240 if (!refs)
241 refs = ref;
242 if (last_ref)
243 last_ref->next = ref;
244 last_ref = ref;
245 start = NULL;
247 i++;
250 ref = alloc_ref("HEAD");
251 if (!http_fetch_ref(url, ref) &&
252 !resolve_remote_symref(ref, refs)) {
253 ref->next = refs;
254 refs = ref;
255 } else {
256 free(ref);
259 return refs;
262 static struct ref *get_refs(int for_push)
264 struct discovery *heads;
266 if (for_push)
267 heads = discover_refs("git-receive-pack");
268 else
269 heads = discover_refs("git-upload-pack");
271 if (heads->proto_git)
272 return parse_git_refs(heads, for_push);
273 return parse_info_refs(heads);
276 static void output_refs(struct ref *refs)
278 struct ref *posn;
279 for (posn = refs; posn; posn = posn->next) {
280 if (posn->symref)
281 printf("@%s %s\n", posn->symref, posn->name);
282 else
283 printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name);
285 printf("\n");
286 fflush(stdout);
287 free_refs(refs);
290 struct rpc_state {
291 const char *service_name;
292 const char **argv;
293 struct strbuf *stdin_preamble;
294 char *service_url;
295 char *hdr_content_type;
296 char *hdr_accept;
297 char *buf;
298 size_t alloc;
299 size_t len;
300 size_t pos;
301 int in;
302 int out;
303 struct strbuf result;
304 unsigned gzip_request : 1;
305 unsigned initial_buffer : 1;
308 static size_t rpc_out(void *ptr, size_t eltsize,
309 size_t nmemb, void *buffer_)
311 size_t max = eltsize * nmemb;
312 struct rpc_state *rpc = buffer_;
313 size_t avail = rpc->len - rpc->pos;
315 if (!avail) {
316 rpc->initial_buffer = 0;
317 avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
318 if (!avail)
319 return 0;
320 rpc->pos = 0;
321 rpc->len = avail;
324 if (max < avail)
325 avail = max;
326 memcpy(ptr, rpc->buf + rpc->pos, avail);
327 rpc->pos += avail;
328 return avail;
331 #ifndef NO_CURL_IOCTL
332 static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
334 struct rpc_state *rpc = clientp;
336 switch (cmd) {
337 case CURLIOCMD_NOP:
338 return CURLIOE_OK;
340 case CURLIOCMD_RESTARTREAD:
341 if (rpc->initial_buffer) {
342 rpc->pos = 0;
343 return CURLIOE_OK;
345 fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
346 return CURLIOE_FAILRESTART;
348 default:
349 return CURLIOE_UNKNOWNCMD;
352 #endif
354 static size_t rpc_in(char *ptr, size_t eltsize,
355 size_t nmemb, void *buffer_)
357 size_t size = eltsize * nmemb;
358 struct rpc_state *rpc = buffer_;
359 write_or_die(rpc->in, ptr, size);
360 return size;
363 static int run_slot(struct active_request_slot *slot)
365 int err = 0;
366 struct slot_results results;
368 slot->results = &results;
369 slot->curl_result = curl_easy_perform(slot->curl);
370 finish_active_slot(slot);
372 if (results.curl_result != CURLE_OK) {
373 err |= error("RPC failed; result=%d, HTTP code = %ld",
374 results.curl_result, results.http_code);
377 return err;
380 static int probe_rpc(struct rpc_state *rpc)
382 struct active_request_slot *slot;
383 struct curl_slist *headers = NULL;
384 struct strbuf buf = STRBUF_INIT;
385 int err;
387 slot = get_active_slot();
389 headers = curl_slist_append(headers, rpc->hdr_content_type);
390 headers = curl_slist_append(headers, rpc->hdr_accept);
392 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
393 curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
394 curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
395 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "");
396 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, "0000");
397 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, 4);
398 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
399 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
400 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buf);
402 err = run_slot(slot);
404 curl_slist_free_all(headers);
405 strbuf_release(&buf);
406 return err;
409 static int post_rpc(struct rpc_state *rpc)
411 struct active_request_slot *slot;
412 struct curl_slist *headers = NULL;
413 int use_gzip = rpc->gzip_request;
414 char *gzip_body = NULL;
415 int err, large_request = 0;
417 /* Try to load the entire request, if we can fit it into the
418 * allocated buffer space we can use HTTP/1.0 and avoid the
419 * chunked encoding mess.
421 while (1) {
422 size_t left = rpc->alloc - rpc->len;
423 char *buf = rpc->buf + rpc->len;
424 int n;
426 if (left < LARGE_PACKET_MAX) {
427 large_request = 1;
428 use_gzip = 0;
429 break;
432 n = packet_read_line(rpc->out, buf, left);
433 if (!n)
434 break;
435 rpc->len += n;
438 if (large_request) {
439 err = probe_rpc(rpc);
440 if (err)
441 return err;
444 slot = get_active_slot();
446 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
447 curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
448 curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
449 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "");
451 headers = curl_slist_append(headers, rpc->hdr_content_type);
452 headers = curl_slist_append(headers, rpc->hdr_accept);
453 headers = curl_slist_append(headers, "Expect:");
455 if (large_request) {
456 /* The request body is large and the size cannot be predicted.
457 * We must use chunked encoding to send it.
459 headers = curl_slist_append(headers, "Transfer-Encoding: chunked");
460 rpc->initial_buffer = 1;
461 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out);
462 curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc);
463 #ifndef NO_CURL_IOCTL
464 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl);
465 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc);
466 #endif
467 if (options.verbosity > 1) {
468 fprintf(stderr, "POST %s (chunked)\n", rpc->service_name);
469 fflush(stderr);
472 } else if (use_gzip && 1024 < rpc->len) {
473 /* The client backend isn't giving us compressed data so
474 * we can try to deflate it ourselves, this may save on.
475 * the transfer time.
477 size_t size;
478 git_zstream stream;
479 int ret;
481 memset(&stream, 0, sizeof(stream));
482 git_deflate_init_gzip(&stream, Z_BEST_COMPRESSION);
483 size = git_deflate_bound(&stream, rpc->len);
484 gzip_body = xmalloc(size);
486 stream.next_in = (unsigned char *)rpc->buf;
487 stream.avail_in = rpc->len;
488 stream.next_out = (unsigned char *)gzip_body;
489 stream.avail_out = size;
491 ret = git_deflate(&stream, Z_FINISH);
492 if (ret != Z_STREAM_END)
493 die("cannot deflate request; zlib deflate error %d", ret);
495 ret = git_deflate_end_gently(&stream);
496 if (ret != Z_OK)
497 die("cannot deflate request; zlib end error %d", ret);
499 size = stream.total_out;
501 headers = curl_slist_append(headers, "Content-Encoding: gzip");
502 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body);
503 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size);
505 if (options.verbosity > 1) {
506 fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n",
507 rpc->service_name,
508 (unsigned long)rpc->len, (unsigned long)size);
509 fflush(stderr);
511 } else {
512 /* We know the complete request size in advance, use the
513 * more normal Content-Length approach.
515 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf);
516 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len);
517 if (options.verbosity > 1) {
518 fprintf(stderr, "POST %s (%lu bytes)\n",
519 rpc->service_name, (unsigned long)rpc->len);
520 fflush(stderr);
524 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
525 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in);
526 curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc);
528 err = run_slot(slot);
530 curl_slist_free_all(headers);
531 free(gzip_body);
532 return err;
535 static int rpc_service(struct rpc_state *rpc, struct discovery *heads)
537 const char *svc = rpc->service_name;
538 struct strbuf buf = STRBUF_INIT;
539 struct strbuf *preamble = rpc->stdin_preamble;
540 struct child_process client;
541 int err = 0;
543 memset(&client, 0, sizeof(client));
544 client.in = -1;
545 client.out = -1;
546 client.git_cmd = 1;
547 client.argv = rpc->argv;
548 if (start_command(&client))
549 exit(1);
550 if (preamble)
551 write_or_die(client.in, preamble->buf, preamble->len);
552 if (heads)
553 write_or_die(client.in, heads->buf, heads->len);
555 rpc->alloc = http_post_buffer;
556 rpc->buf = xmalloc(rpc->alloc);
557 rpc->in = client.in;
558 rpc->out = client.out;
559 strbuf_init(&rpc->result, 0);
561 strbuf_addf(&buf, "%s%s", url, svc);
562 rpc->service_url = strbuf_detach(&buf, NULL);
564 strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc);
565 rpc->hdr_content_type = strbuf_detach(&buf, NULL);
567 strbuf_addf(&buf, "Accept: application/x-%s-result", svc);
568 rpc->hdr_accept = strbuf_detach(&buf, NULL);
570 while (!err) {
571 int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
572 if (!n)
573 break;
574 rpc->pos = 0;
575 rpc->len = n;
576 err |= post_rpc(rpc);
579 close(client.in);
580 client.in = -1;
581 if (!err) {
582 strbuf_read(&rpc->result, client.out, 0);
583 } else {
584 char buf[4096];
585 for (;;)
586 if (xread(client.out, buf, sizeof(buf)) <= 0)
587 break;
590 close(client.out);
591 client.out = -1;
593 err |= finish_command(&client);
594 free(rpc->service_url);
595 free(rpc->hdr_content_type);
596 free(rpc->hdr_accept);
597 free(rpc->buf);
598 strbuf_release(&buf);
599 return err;
602 static int fetch_dumb(int nr_heads, struct ref **to_fetch)
604 struct walker *walker;
605 char **targets = xmalloc(nr_heads * sizeof(char*));
606 int ret, i;
608 if (options.depth)
609 die("dumb http transport does not support --depth");
610 for (i = 0; i < nr_heads; i++)
611 targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
613 walker = get_http_walker(url);
614 walker->get_all = 1;
615 walker->get_tree = 1;
616 walker->get_history = 1;
617 walker->get_verbosely = options.verbosity >= 3;
618 walker->get_recover = 0;
619 ret = walker_fetch(walker, nr_heads, targets, NULL, NULL);
620 walker_free(walker);
622 for (i = 0; i < nr_heads; i++)
623 free(targets[i]);
624 free(targets);
626 return ret ? error("Fetch failed.") : 0;
629 static int fetch_git(struct discovery *heads,
630 int nr_heads, struct ref **to_fetch)
632 struct rpc_state rpc;
633 struct strbuf preamble = STRBUF_INIT;
634 char *depth_arg = NULL;
635 int argc = 0, i, err;
636 const char *argv[15];
638 argv[argc++] = "fetch-pack";
639 argv[argc++] = "--stateless-rpc";
640 argv[argc++] = "--stdin";
641 argv[argc++] = "--lock-pack";
642 if (options.followtags)
643 argv[argc++] = "--include-tag";
644 if (options.thin)
645 argv[argc++] = "--thin";
646 if (options.verbosity >= 3) {
647 argv[argc++] = "-v";
648 argv[argc++] = "-v";
650 if (!options.progress)
651 argv[argc++] = "--no-progress";
652 if (options.depth) {
653 struct strbuf buf = STRBUF_INIT;
654 strbuf_addf(&buf, "--depth=%lu", options.depth);
655 depth_arg = strbuf_detach(&buf, NULL);
656 argv[argc++] = depth_arg;
658 argv[argc++] = url;
659 argv[argc++] = NULL;
661 for (i = 0; i < nr_heads; i++) {
662 struct ref *ref = to_fetch[i];
663 if (!ref->name || !*ref->name)
664 die("cannot fetch by sha1 over smart http");
665 packet_buf_write(&preamble, "%s\n", ref->name);
667 packet_buf_flush(&preamble);
669 memset(&rpc, 0, sizeof(rpc));
670 rpc.service_name = "git-upload-pack",
671 rpc.argv = argv;
672 rpc.stdin_preamble = &preamble;
673 rpc.gzip_request = 1;
675 err = rpc_service(&rpc, heads);
676 if (rpc.result.len)
677 safe_write(1, rpc.result.buf, rpc.result.len);
678 strbuf_release(&rpc.result);
679 strbuf_release(&preamble);
680 free(depth_arg);
681 return err;
684 static int fetch(int nr_heads, struct ref **to_fetch)
686 struct discovery *d = discover_refs("git-upload-pack");
687 if (d->proto_git)
688 return fetch_git(d, nr_heads, to_fetch);
689 else
690 return fetch_dumb(nr_heads, to_fetch);
693 static void parse_fetch(struct strbuf *buf)
695 struct ref **to_fetch = NULL;
696 struct ref *list_head = NULL;
697 struct ref **list = &list_head;
698 int alloc_heads = 0, nr_heads = 0;
700 do {
701 if (!prefixcmp(buf->buf, "fetch ")) {
702 char *p = buf->buf + strlen("fetch ");
703 char *name;
704 struct ref *ref;
705 unsigned char old_sha1[20];
707 if (strlen(p) < 40 || get_sha1_hex(p, old_sha1))
708 die("protocol error: expected sha/ref, got %s'", p);
709 if (p[40] == ' ')
710 name = p + 41;
711 else if (!p[40])
712 name = "";
713 else
714 die("protocol error: expected sha/ref, got %s'", p);
716 ref = alloc_ref(name);
717 hashcpy(ref->old_sha1, old_sha1);
719 *list = ref;
720 list = &ref->next;
722 ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads);
723 to_fetch[nr_heads++] = ref;
725 else
726 die("http transport does not support %s", buf->buf);
728 strbuf_reset(buf);
729 if (strbuf_getline(buf, stdin, '\n') == EOF)
730 return;
731 if (!*buf->buf)
732 break;
733 } while (1);
735 if (fetch(nr_heads, to_fetch))
736 exit(128); /* error already reported */
737 free_refs(list_head);
738 free(to_fetch);
740 printf("\n");
741 fflush(stdout);
742 strbuf_reset(buf);
745 static int push_dav(int nr_spec, char **specs)
747 const char **argv = xmalloc((10 + nr_spec) * sizeof(char*));
748 int argc = 0, i;
750 argv[argc++] = "http-push";
751 argv[argc++] = "--helper-status";
752 if (options.dry_run)
753 argv[argc++] = "--dry-run";
754 if (options.verbosity > 1)
755 argv[argc++] = "--verbose";
756 argv[argc++] = url;
757 for (i = 0; i < nr_spec; i++)
758 argv[argc++] = specs[i];
759 argv[argc++] = NULL;
761 if (run_command_v_opt(argv, RUN_GIT_CMD))
762 die("git-%s failed", argv[0]);
763 free(argv);
764 return 0;
767 static int push_git(struct discovery *heads, int nr_spec, char **specs)
769 struct rpc_state rpc;
770 const char **argv;
771 int argc = 0, i, err;
773 argv = xmalloc((10 + nr_spec) * sizeof(char*));
774 argv[argc++] = "send-pack";
775 argv[argc++] = "--stateless-rpc";
776 argv[argc++] = "--helper-status";
777 if (options.thin)
778 argv[argc++] = "--thin";
779 if (options.dry_run)
780 argv[argc++] = "--dry-run";
781 if (options.verbosity == 0)
782 argv[argc++] = "--quiet";
783 else if (options.verbosity > 1)
784 argv[argc++] = "--verbose";
785 argv[argc++] = options.progress ? "--progress" : "--no-progress";
786 argv[argc++] = url;
787 for (i = 0; i < nr_spec; i++)
788 argv[argc++] = specs[i];
789 argv[argc++] = NULL;
791 memset(&rpc, 0, sizeof(rpc));
792 rpc.service_name = "git-receive-pack",
793 rpc.argv = argv;
795 err = rpc_service(&rpc, heads);
796 if (rpc.result.len)
797 safe_write(1, rpc.result.buf, rpc.result.len);
798 strbuf_release(&rpc.result);
799 free(argv);
800 return err;
803 static int push(int nr_spec, char **specs)
805 struct discovery *heads = discover_refs("git-receive-pack");
806 int ret;
808 if (heads->proto_git)
809 ret = push_git(heads, nr_spec, specs);
810 else
811 ret = push_dav(nr_spec, specs);
812 free_discovery(heads);
813 return ret;
816 static void parse_push(struct strbuf *buf)
818 char **specs = NULL;
819 int alloc_spec = 0, nr_spec = 0, i, ret;
821 do {
822 if (!prefixcmp(buf->buf, "push ")) {
823 ALLOC_GROW(specs, nr_spec + 1, alloc_spec);
824 specs[nr_spec++] = xstrdup(buf->buf + 5);
826 else
827 die("http transport does not support %s", buf->buf);
829 strbuf_reset(buf);
830 if (strbuf_getline(buf, stdin, '\n') == EOF)
831 goto free_specs;
832 if (!*buf->buf)
833 break;
834 } while (1);
836 ret = push(nr_spec, specs);
837 printf("\n");
838 fflush(stdout);
840 if (ret)
841 exit(128); /* error already reported */
843 free_specs:
844 for (i = 0; i < nr_spec; i++)
845 free(specs[i]);
846 free(specs);
849 int main(int argc, const char **argv)
851 struct strbuf buf = STRBUF_INIT;
852 int nongit;
854 git_extract_argv0_path(argv[0]);
855 setup_git_directory_gently(&nongit);
856 if (argc < 2) {
857 fprintf(stderr, "Remote needed\n");
858 return 1;
861 options.verbosity = 1;
862 options.progress = !!isatty(2);
863 options.thin = 1;
865 remote = remote_get(argv[1]);
867 if (argc > 2) {
868 end_url_with_slash(&buf, argv[2]);
869 } else {
870 end_url_with_slash(&buf, remote->url[0]);
873 url = strbuf_detach(&buf, NULL);
875 http_init(remote, url, 0);
877 do {
878 if (strbuf_getline(&buf, stdin, '\n') == EOF) {
879 if (ferror(stdin))
880 fprintf(stderr, "Error reading command stream\n");
881 else
882 fprintf(stderr, "Unexpected end of command stream\n");
883 return 1;
885 if (buf.len == 0)
886 break;
887 if (!prefixcmp(buf.buf, "fetch ")) {
888 if (nongit)
889 die("Fetch attempted without a local repo");
890 parse_fetch(&buf);
892 } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) {
893 int for_push = !!strstr(buf.buf + 4, "for-push");
894 output_refs(get_refs(for_push));
896 } else if (!prefixcmp(buf.buf, "push ")) {
897 parse_push(&buf);
899 } else if (!prefixcmp(buf.buf, "option ")) {
900 char *name = buf.buf + strlen("option ");
901 char *value = strchr(name, ' ');
902 int result;
904 if (value)
905 *value++ = '\0';
906 else
907 value = "true";
909 result = set_option(name, value);
910 if (!result)
911 printf("ok\n");
912 else if (result < 0)
913 printf("error invalid value\n");
914 else
915 printf("unsupported\n");
916 fflush(stdout);
918 } else if (!strcmp(buf.buf, "capabilities")) {
919 printf("fetch\n");
920 printf("option\n");
921 printf("push\n");
922 printf("\n");
923 fflush(stdout);
924 } else {
925 fprintf(stderr, "Unknown command '%s'\n", buf.buf);
926 return 1;
928 strbuf_reset(&buf);
929 } while (1);
931 http_cleanup();
933 return 0;