blame.c: Properly initialize strbuf after calling, textconv_object()
[git/dscho.git] / remote-curl.c
blob04d4813e4183c675b54aba942cd078d8ff632053
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) {
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)
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, 0, NULL, 0, NULL);
204 close(async.out);
205 if (finish_async(&async))
206 die("ref parsing thread failed");
207 return list;
210 static struct ref *parse_info_refs(struct discovery *heads)
212 char *data, *start, *mid;
213 char *ref_name;
214 int i = 0;
216 struct ref *refs = NULL;
217 struct ref *ref = NULL;
218 struct ref *last_ref = NULL;
220 data = heads->buf;
221 start = NULL;
222 mid = data;
223 while (i < heads->len) {
224 if (!start) {
225 start = &data[i];
227 if (data[i] == '\t')
228 mid = &data[i];
229 if (data[i] == '\n') {
230 data[i] = 0;
231 ref_name = mid + 1;
232 ref = xmalloc(sizeof(struct ref) +
233 strlen(ref_name) + 1);
234 memset(ref, 0, sizeof(struct ref));
235 strcpy(ref->name, ref_name);
236 get_sha1_hex(start, ref->old_sha1);
237 if (!refs)
238 refs = ref;
239 if (last_ref)
240 last_ref->next = ref;
241 last_ref = ref;
242 start = NULL;
244 i++;
247 ref = alloc_ref("HEAD");
248 if (!http_fetch_ref(url, ref) &&
249 !resolve_remote_symref(ref, refs)) {
250 ref->next = refs;
251 refs = ref;
252 } else {
253 free(ref);
256 return refs;
259 static struct ref *get_refs(int for_push)
261 struct discovery *heads;
263 if (for_push)
264 heads = discover_refs("git-receive-pack");
265 else
266 heads = discover_refs("git-upload-pack");
268 if (heads->proto_git)
269 return parse_git_refs(heads);
270 return parse_info_refs(heads);
273 static void output_refs(struct ref *refs)
275 struct ref *posn;
276 for (posn = refs; posn; posn = posn->next) {
277 if (posn->symref)
278 printf("@%s %s\n", posn->symref, posn->name);
279 else
280 printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name);
282 printf("\n");
283 fflush(stdout);
284 free_refs(refs);
287 struct rpc_state {
288 const char *service_name;
289 const char **argv;
290 char *service_url;
291 char *hdr_content_type;
292 char *hdr_accept;
293 char *buf;
294 size_t alloc;
295 size_t len;
296 size_t pos;
297 int in;
298 int out;
299 struct strbuf result;
300 unsigned gzip_request : 1;
301 unsigned initial_buffer : 1;
304 static size_t rpc_out(void *ptr, size_t eltsize,
305 size_t nmemb, void *buffer_)
307 size_t max = eltsize * nmemb;
308 struct rpc_state *rpc = buffer_;
309 size_t avail = rpc->len - rpc->pos;
311 if (!avail) {
312 rpc->initial_buffer = 0;
313 avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
314 if (!avail)
315 return 0;
316 rpc->pos = 0;
317 rpc->len = avail;
320 if (max < avail)
321 avail = max;
322 memcpy(ptr, rpc->buf + rpc->pos, avail);
323 rpc->pos += avail;
324 return avail;
327 #ifndef NO_CURL_IOCTL
328 static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
330 struct rpc_state *rpc = clientp;
332 switch (cmd) {
333 case CURLIOCMD_NOP:
334 return CURLIOE_OK;
336 case CURLIOCMD_RESTARTREAD:
337 if (rpc->initial_buffer) {
338 rpc->pos = 0;
339 return CURLIOE_OK;
341 fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
342 return CURLIOE_FAILRESTART;
344 default:
345 return CURLIOE_UNKNOWNCMD;
348 #endif
350 static size_t rpc_in(const void *ptr, size_t eltsize,
351 size_t nmemb, void *buffer_)
353 size_t size = eltsize * nmemb;
354 struct rpc_state *rpc = buffer_;
355 write_or_die(rpc->in, ptr, size);
356 return size;
359 static int post_rpc(struct rpc_state *rpc)
361 struct active_request_slot *slot;
362 struct slot_results results;
363 struct curl_slist *headers = NULL;
364 int use_gzip = rpc->gzip_request;
365 char *gzip_body = NULL;
366 int err = 0, large_request = 0;
368 /* Try to load the entire request, if we can fit it into the
369 * allocated buffer space we can use HTTP/1.0 and avoid the
370 * chunked encoding mess.
372 while (1) {
373 size_t left = rpc->alloc - rpc->len;
374 char *buf = rpc->buf + rpc->len;
375 int n;
377 if (left < LARGE_PACKET_MAX) {
378 large_request = 1;
379 use_gzip = 0;
380 break;
383 n = packet_read_line(rpc->out, buf, left);
384 if (!n)
385 break;
386 rpc->len += n;
389 slot = get_active_slot();
390 slot->results = &results;
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, "");
397 headers = curl_slist_append(headers, rpc->hdr_content_type);
398 headers = curl_slist_append(headers, rpc->hdr_accept);
400 if (large_request) {
401 /* The request body is large and the size cannot be predicted.
402 * We must use chunked encoding to send it.
404 headers = curl_slist_append(headers, "Expect: 100-continue");
405 headers = curl_slist_append(headers, "Transfer-Encoding: chunked");
406 rpc->initial_buffer = 1;
407 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out);
408 curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc);
409 #ifndef NO_CURL_IOCTL
410 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl);
411 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc);
412 #endif
413 if (options.verbosity > 1) {
414 fprintf(stderr, "POST %s (chunked)\n", rpc->service_name);
415 fflush(stderr);
418 } else if (use_gzip && 1024 < rpc->len) {
419 /* The client backend isn't giving us compressed data so
420 * we can try to deflate it ourselves, this may save on.
421 * the transfer time.
423 size_t size;
424 z_stream stream;
425 int ret;
427 memset(&stream, 0, sizeof(stream));
428 ret = deflateInit2(&stream, Z_BEST_COMPRESSION,
429 Z_DEFLATED, (15 + 16),
430 8, Z_DEFAULT_STRATEGY);
431 if (ret != Z_OK)
432 die("cannot deflate request; zlib init error %d", ret);
433 size = deflateBound(&stream, rpc->len);
434 gzip_body = xmalloc(size);
436 stream.next_in = (unsigned char *)rpc->buf;
437 stream.avail_in = rpc->len;
438 stream.next_out = (unsigned char *)gzip_body;
439 stream.avail_out = size;
441 ret = deflate(&stream, Z_FINISH);
442 if (ret != Z_STREAM_END)
443 die("cannot deflate request; zlib deflate error %d", ret);
445 ret = deflateEnd(&stream);
446 if (ret != Z_OK)
447 die("cannot deflate request; zlib end error %d", ret);
449 size = stream.total_out;
451 headers = curl_slist_append(headers, "Content-Encoding: gzip");
452 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body);
453 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size);
455 if (options.verbosity > 1) {
456 fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n",
457 rpc->service_name,
458 (unsigned long)rpc->len, (unsigned long)size);
459 fflush(stderr);
461 } else {
462 /* We know the complete request size in advance, use the
463 * more normal Content-Length approach.
465 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf);
466 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len);
467 if (options.verbosity > 1) {
468 fprintf(stderr, "POST %s (%lu bytes)\n",
469 rpc->service_name, (unsigned long)rpc->len);
470 fflush(stderr);
474 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
475 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in);
476 curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc);
478 slot->curl_result = curl_easy_perform(slot->curl);
479 finish_active_slot(slot);
481 if (results.curl_result != CURLE_OK) {
482 err |= error("RPC failed; result=%d, HTTP code = %ld",
483 results.curl_result, results.http_code);
486 curl_slist_free_all(headers);
487 free(gzip_body);
488 return err;
491 static int rpc_service(struct rpc_state *rpc, struct discovery *heads)
493 const char *svc = rpc->service_name;
494 struct strbuf buf = STRBUF_INIT;
495 struct child_process client;
496 int err = 0;
498 memset(&client, 0, sizeof(client));
499 client.in = -1;
500 client.out = -1;
501 client.git_cmd = 1;
502 client.argv = rpc->argv;
503 if (start_command(&client))
504 exit(1);
505 if (heads)
506 write_or_die(client.in, heads->buf, heads->len);
508 rpc->alloc = http_post_buffer;
509 rpc->buf = xmalloc(rpc->alloc);
510 rpc->in = client.in;
511 rpc->out = client.out;
512 strbuf_init(&rpc->result, 0);
514 strbuf_addf(&buf, "%s%s", url, svc);
515 rpc->service_url = strbuf_detach(&buf, NULL);
517 strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc);
518 rpc->hdr_content_type = strbuf_detach(&buf, NULL);
520 strbuf_addf(&buf, "Accept: application/x-%s-result", svc);
521 rpc->hdr_accept = strbuf_detach(&buf, NULL);
523 while (!err) {
524 int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
525 if (!n)
526 break;
527 rpc->pos = 0;
528 rpc->len = n;
529 err |= post_rpc(rpc);
532 close(client.in);
533 client.in = -1;
534 strbuf_read(&rpc->result, client.out, 0);
536 close(client.out);
537 client.out = -1;
539 err |= finish_command(&client);
540 free(rpc->service_url);
541 free(rpc->hdr_content_type);
542 free(rpc->hdr_accept);
543 free(rpc->buf);
544 strbuf_release(&buf);
545 return err;
548 static int fetch_dumb(int nr_heads, struct ref **to_fetch)
550 struct walker *walker;
551 char **targets = xmalloc(nr_heads * sizeof(char*));
552 int ret, i;
554 if (options.depth)
555 die("dumb http transport does not support --depth");
556 for (i = 0; i < nr_heads; i++)
557 targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
559 walker = get_http_walker(url);
560 walker->get_all = 1;
561 walker->get_tree = 1;
562 walker->get_history = 1;
563 walker->get_verbosely = options.verbosity >= 3;
564 walker->get_recover = 0;
565 ret = walker_fetch(walker, nr_heads, targets, NULL, NULL);
566 walker_free(walker);
568 for (i = 0; i < nr_heads; i++)
569 free(targets[i]);
570 free(targets);
572 return ret ? error("Fetch failed.") : 0;
575 static int fetch_git(struct discovery *heads,
576 int nr_heads, struct ref **to_fetch)
578 struct rpc_state rpc;
579 char *depth_arg = NULL;
580 const char **argv;
581 int argc = 0, i, err;
583 argv = xmalloc((15 + nr_heads) * sizeof(char*));
584 argv[argc++] = "fetch-pack";
585 argv[argc++] = "--stateless-rpc";
586 argv[argc++] = "--lock-pack";
587 if (options.followtags)
588 argv[argc++] = "--include-tag";
589 if (options.thin)
590 argv[argc++] = "--thin";
591 if (options.verbosity >= 3) {
592 argv[argc++] = "-v";
593 argv[argc++] = "-v";
595 if (!options.progress)
596 argv[argc++] = "--no-progress";
597 if (options.depth) {
598 struct strbuf buf = STRBUF_INIT;
599 strbuf_addf(&buf, "--depth=%lu", options.depth);
600 depth_arg = strbuf_detach(&buf, NULL);
601 argv[argc++] = depth_arg;
603 argv[argc++] = url;
604 for (i = 0; i < nr_heads; i++) {
605 struct ref *ref = to_fetch[i];
606 if (!ref->name || !*ref->name)
607 die("cannot fetch by sha1 over smart http");
608 argv[argc++] = ref->name;
610 argv[argc++] = NULL;
612 memset(&rpc, 0, sizeof(rpc));
613 rpc.service_name = "git-upload-pack",
614 rpc.argv = argv;
615 rpc.gzip_request = 1;
617 err = rpc_service(&rpc, heads);
618 if (rpc.result.len)
619 safe_write(1, rpc.result.buf, rpc.result.len);
620 strbuf_release(&rpc.result);
621 free(argv);
622 free(depth_arg);
623 return err;
626 static int fetch(int nr_heads, struct ref **to_fetch)
628 struct discovery *d = discover_refs("git-upload-pack");
629 if (d->proto_git)
630 return fetch_git(d, nr_heads, to_fetch);
631 else
632 return fetch_dumb(nr_heads, to_fetch);
635 static void parse_fetch(struct strbuf *buf)
637 struct ref **to_fetch = NULL;
638 struct ref *list_head = NULL;
639 struct ref **list = &list_head;
640 int alloc_heads = 0, nr_heads = 0;
642 do {
643 if (!prefixcmp(buf->buf, "fetch ")) {
644 char *p = buf->buf + strlen("fetch ");
645 char *name;
646 struct ref *ref;
647 unsigned char old_sha1[20];
649 if (strlen(p) < 40 || get_sha1_hex(p, old_sha1))
650 die("protocol error: expected sha/ref, got %s'", p);
651 if (p[40] == ' ')
652 name = p + 41;
653 else if (!p[40])
654 name = "";
655 else
656 die("protocol error: expected sha/ref, got %s'", p);
658 ref = alloc_ref(name);
659 hashcpy(ref->old_sha1, old_sha1);
661 *list = ref;
662 list = &ref->next;
664 ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads);
665 to_fetch[nr_heads++] = ref;
667 else
668 die("http transport does not support %s", buf->buf);
670 strbuf_reset(buf);
671 if (strbuf_getline(buf, stdin, '\n') == EOF)
672 return;
673 if (!*buf->buf)
674 break;
675 } while (1);
677 if (fetch(nr_heads, to_fetch))
678 exit(128); /* error already reported */
679 free_refs(list_head);
680 free(to_fetch);
682 printf("\n");
683 fflush(stdout);
684 strbuf_reset(buf);
687 static int push_dav(int nr_spec, char **specs)
689 const char **argv = xmalloc((10 + nr_spec) * sizeof(char*));
690 int argc = 0, i;
692 argv[argc++] = "http-push";
693 argv[argc++] = "--helper-status";
694 if (options.dry_run)
695 argv[argc++] = "--dry-run";
696 if (options.verbosity > 1)
697 argv[argc++] = "--verbose";
698 argv[argc++] = url;
699 for (i = 0; i < nr_spec; i++)
700 argv[argc++] = specs[i];
701 argv[argc++] = NULL;
703 if (run_command_v_opt(argv, RUN_GIT_CMD))
704 die("git-%s failed", argv[0]);
705 free(argv);
706 return 0;
709 static int push_git(struct discovery *heads, int nr_spec, char **specs)
711 struct rpc_state rpc;
712 const char **argv;
713 int argc = 0, i, err;
715 argv = xmalloc((10 + nr_spec) * sizeof(char*));
716 argv[argc++] = "send-pack";
717 argv[argc++] = "--stateless-rpc";
718 argv[argc++] = "--helper-status";
719 if (options.thin)
720 argv[argc++] = "--thin";
721 if (options.dry_run)
722 argv[argc++] = "--dry-run";
723 if (options.verbosity > 1)
724 argv[argc++] = "--verbose";
725 argv[argc++] = url;
726 for (i = 0; i < nr_spec; i++)
727 argv[argc++] = specs[i];
728 argv[argc++] = NULL;
730 memset(&rpc, 0, sizeof(rpc));
731 rpc.service_name = "git-receive-pack",
732 rpc.argv = argv;
734 err = rpc_service(&rpc, heads);
735 if (rpc.result.len)
736 safe_write(1, rpc.result.buf, rpc.result.len);
737 strbuf_release(&rpc.result);
738 free(argv);
739 return err;
742 static int push(int nr_spec, char **specs)
744 struct discovery *heads = discover_refs("git-receive-pack");
745 int ret;
747 if (heads->proto_git)
748 ret = push_git(heads, nr_spec, specs);
749 else
750 ret = push_dav(nr_spec, specs);
751 free_discovery(heads);
752 return ret;
755 static void parse_push(struct strbuf *buf)
757 char **specs = NULL;
758 int alloc_spec = 0, nr_spec = 0, i;
760 do {
761 if (!prefixcmp(buf->buf, "push ")) {
762 ALLOC_GROW(specs, nr_spec + 1, alloc_spec);
763 specs[nr_spec++] = xstrdup(buf->buf + 5);
765 else
766 die("http transport does not support %s", buf->buf);
768 strbuf_reset(buf);
769 if (strbuf_getline(buf, stdin, '\n') == EOF)
770 return;
771 if (!*buf->buf)
772 break;
773 } while (1);
775 if (push(nr_spec, specs))
776 exit(128); /* error already reported */
777 for (i = 0; i < nr_spec; i++)
778 free(specs[i]);
779 free(specs);
781 printf("\n");
782 fflush(stdout);
785 int main(int argc, const char **argv)
787 struct strbuf buf = STRBUF_INIT;
788 int nongit;
790 git_extract_argv0_path(argv[0]);
791 setup_git_directory_gently(&nongit);
792 if (argc < 2) {
793 fprintf(stderr, "Remote needed\n");
794 return 1;
797 options.verbosity = 1;
798 options.progress = !!isatty(2);
799 options.thin = 1;
801 remote = remote_get(argv[1]);
803 if (argc > 2) {
804 end_url_with_slash(&buf, argv[2]);
805 } else {
806 end_url_with_slash(&buf, remote->url[0]);
809 url = strbuf_detach(&buf, NULL);
811 http_init(remote);
813 do {
814 if (strbuf_getline(&buf, stdin, '\n') == EOF)
815 break;
816 if (!prefixcmp(buf.buf, "fetch ")) {
817 if (nongit)
818 die("Fetch attempted without a local repo");
819 parse_fetch(&buf);
821 } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) {
822 int for_push = !!strstr(buf.buf + 4, "for-push");
823 output_refs(get_refs(for_push));
825 } else if (!prefixcmp(buf.buf, "push ")) {
826 parse_push(&buf);
828 } else if (!prefixcmp(buf.buf, "option ")) {
829 char *name = buf.buf + strlen("option ");
830 char *value = strchr(name, ' ');
831 int result;
833 if (value)
834 *value++ = '\0';
835 else
836 value = "true";
838 result = set_option(name, value);
839 if (!result)
840 printf("ok\n");
841 else if (result < 0)
842 printf("error invalid value\n");
843 else
844 printf("unsupported\n");
845 fflush(stdout);
847 } else if (!strcmp(buf.buf, "capabilities")) {
848 printf("fetch\n");
849 printf("option\n");
850 printf("push\n");
851 printf("\n");
852 fflush(stdout);
853 } else {
854 return 1;
856 strbuf_reset(&buf);
857 } while (1);
859 http_cleanup();
861 return 0;