http: make end_url_with_slash() public
[git/git.git] / remote-curl.c
CommitLineData
a2d725b7
DB
1#include "cache.h"
2#include "remote.h"
3#include "strbuf.h"
4#include "walker.h"
5#include "http.h"
d01a8e32 6#include "exec_cmd.h"
ae4efe19 7#include "run-command.h"
97cc7bc4 8#include "pkt-line.h"
de1a2fdd 9#include "sideband.h"
a2d725b7 10
37a8768f
SP
11static struct remote *remote;
12static const char *url;
13static struct walker *walker;
14
ef08ef9e
SP
15struct options {
16 int verbosity;
17 unsigned long depth;
18 unsigned progress : 1,
ae4efe19 19 followtags : 1,
de1a2fdd
SP
20 dry_run : 1,
21 thin : 1;
ef08ef9e
SP
22};
23static struct options options;
24
37a8768f
SP
25static void init_walker(void)
26{
27 if (!walker)
28 walker = get_http_walker(url, remote);
29}
30
ef08ef9e
SP
31static int set_option(const char *name, const char *value)
32{
33 if (!strcmp(name, "verbosity")) {
34 char *end;
35 int v = strtol(value, &end, 10);
36 if (value == end || *end)
37 return -1;
38 options.verbosity = v;
39 return 0;
40 }
41 else if (!strcmp(name, "progress")) {
42 if (!strcmp(value, "true"))
43 options.progress = 1;
44 else if (!strcmp(value, "false"))
45 options.progress = 0;
46 else
47 return -1;
249b2004 48 return 0;
ef08ef9e
SP
49 }
50 else if (!strcmp(name, "depth")) {
51 char *end;
52 unsigned long v = strtoul(value, &end, 10);
53 if (value == end || *end)
54 return -1;
55 options.depth = v;
249b2004 56 return 0;
ef08ef9e
SP
57 }
58 else if (!strcmp(name, "followtags")) {
59 if (!strcmp(value, "true"))
60 options.followtags = 1;
61 else if (!strcmp(value, "false"))
62 options.followtags = 0;
63 else
64 return -1;
249b2004 65 return 0;
ef08ef9e 66 }
ae4efe19
SP
67 else if (!strcmp(name, "dry-run")) {
68 if (!strcmp(value, "true"))
69 options.dry_run = 1;
70 else if (!strcmp(value, "false"))
71 options.dry_run = 0;
72 else
73 return -1;
74 return 0;
75 }
ef08ef9e
SP
76 else {
77 return 1 /* unsupported */;
78 }
79}
80
97cc7bc4
SP
81struct discovery {
82 const char *service;
83 char *buf_alloc;
84 char *buf;
85 size_t len;
86 unsigned proto_git : 1;
87};
88static struct discovery *last_discovery;
89
90static void free_discovery(struct discovery *d)
91{
92 if (d) {
93 if (d == last_discovery)
94 last_discovery = NULL;
95 free(d->buf_alloc);
96 free(d);
97 }
98}
99
100static struct discovery* discover_refs(const char *service)
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DB
101{
102 struct strbuf buffer = STRBUF_INIT;
97cc7bc4 103 struct discovery *last = last_discovery;
a2d725b7 104 char *refs_url;
703e6e76 105 int http_ret, is_http = 0, proto_git_candidate = 1;
a2d725b7 106
97cc7bc4
SP
107 if (last && !strcmp(service, last->service))
108 return last;
109 free_discovery(last);
a2d725b7 110
97cc7bc4
SP
111 strbuf_addf(&buffer, "%s/info/refs", url);
112 if (!prefixcmp(url, "http://") || !prefixcmp(url, "https://")) {
113 is_http = 1;
114 if (!strchr(url, '?'))
115 strbuf_addch(&buffer, '?');
116 else
117 strbuf_addch(&buffer, '&');
118 strbuf_addf(&buffer, "service=%s", service);
119 }
120 refs_url = strbuf_detach(&buffer, NULL);
a2d725b7 121
37a8768f 122 init_walker();
a2d725b7 123 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
703e6e76
TRC
124
125 /* try again with "plain" url (no ? or & appended) */
126 if (http_ret != HTTP_OK) {
127 free(refs_url);
128 strbuf_reset(&buffer);
129
130 proto_git_candidate = 0;
131 strbuf_addf(&buffer, "%s/info/refs", url);
132 refs_url = strbuf_detach(&buffer, NULL);
133
134 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
135 }
136
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DB
137 switch (http_ret) {
138 case HTTP_OK:
139 break;
140 case HTTP_MISSING_TARGET:
141 die("%s not found: did you run git update-server-info on the"
142 " server?", refs_url);
143 default:
144 http_error(refs_url, http_ret);
145 die("HTTP request failed");
146 }
147
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SP
148 last= xcalloc(1, sizeof(*last_discovery));
149 last->service = service;
150 last->buf_alloc = strbuf_detach(&buffer, &last->len);
151 last->buf = last->buf_alloc;
152
703e6e76
TRC
153 if (is_http && proto_git_candidate
154 && 5 <= last->len && last->buf[4] == '#') {
97cc7bc4
SP
155 /* smart HTTP response; validate that the service
156 * pkt-line matches our request.
157 */
158 struct strbuf exp = STRBUF_INIT;
159
160 if (packet_get_line(&buffer, &last->buf, &last->len) <= 0)
161 die("%s has invalid packet header", refs_url);
162 if (buffer.len && buffer.buf[buffer.len - 1] == '\n')
163 strbuf_setlen(&buffer, buffer.len - 1);
164
165 strbuf_addf(&exp, "# service=%s", service);
166 if (strbuf_cmp(&exp, &buffer))
167 die("invalid server response; got '%s'", buffer.buf);
168 strbuf_release(&exp);
169
170 /* The header can include additional metadata lines, up
171 * until a packet flush marker. Ignore these now, but
172 * in the future we might start to scan them.
173 */
174 strbuf_reset(&buffer);
175 while (packet_get_line(&buffer, &last->buf, &last->len) > 0)
176 strbuf_reset(&buffer);
177
178 last->proto_git = 1;
179 }
180
181 free(refs_url);
182 strbuf_release(&buffer);
183 last_discovery = last;
184 return last;
185}
186
187static int write_discovery(int fd, void *data)
188{
189 struct discovery *heads = data;
190 int err = 0;
191 if (write_in_full(fd, heads->buf, heads->len) != heads->len)
192 err = 1;
193 close(fd);
194 return err;
195}
196
197static struct ref *parse_git_refs(struct discovery *heads)
198{
199 struct ref *list = NULL;
200 struct async async;
201
202 memset(&async, 0, sizeof(async));
203 async.proc = write_discovery;
204 async.data = heads;
205
206 if (start_async(&async))
207 die("cannot start thread to parse advertised refs");
208 get_remote_heads(async.out, &list, 0, NULL, 0, NULL);
209 close(async.out);
210 if (finish_async(&async))
211 die("ref parsing thread failed");
212 return list;
213}
214
215static struct ref *parse_info_refs(struct discovery *heads)
216{
217 char *data, *start, *mid;
218 char *ref_name;
219 int i = 0;
220
221 struct ref *refs = NULL;
222 struct ref *ref = NULL;
223 struct ref *last_ref = NULL;
224
225 data = heads->buf;
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DB
226 start = NULL;
227 mid = data;
97cc7bc4 228 while (i < heads->len) {
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DB
229 if (!start) {
230 start = &data[i];
231 }
232 if (data[i] == '\t')
233 mid = &data[i];
234 if (data[i] == '\n') {
235 data[i] = 0;
236 ref_name = mid + 1;
237 ref = xmalloc(sizeof(struct ref) +
238 strlen(ref_name) + 1);
239 memset(ref, 0, sizeof(struct ref));
240 strcpy(ref->name, ref_name);
241 get_sha1_hex(start, ref->old_sha1);
242 if (!refs)
243 refs = ref;
244 if (last_ref)
245 last_ref->next = ref;
246 last_ref = ref;
247 start = NULL;
248 }
249 i++;
250 }
251
97cc7bc4 252 init_walker();
a2d725b7
DB
253 ref = alloc_ref("HEAD");
254 if (!walker->fetch_ref(walker, ref) &&
255 !resolve_remote_symref(ref, refs)) {
256 ref->next = refs;
257 refs = ref;
258 } else {
259 free(ref);
260 }
261
a2d725b7
DB
262 return refs;
263}
264
97cc7bc4
SP
265static struct ref *get_refs(int for_push)
266{
267 struct discovery *heads;
268
269 if (for_push)
270 heads = discover_refs("git-receive-pack");
271 else
272 heads = discover_refs("git-upload-pack");
273
274 if (heads->proto_git)
275 return parse_git_refs(heads);
276 return parse_info_refs(heads);
277}
278
ae4efe19
SP
279static void output_refs(struct ref *refs)
280{
281 struct ref *posn;
282 for (posn = refs; posn; posn = posn->next) {
283 if (posn->symref)
284 printf("@%s %s\n", posn->symref, posn->name);
285 else
286 printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name);
287 }
288 printf("\n");
289 fflush(stdout);
290 free_refs(refs);
291}
292
de1a2fdd
SP
293struct rpc_state {
294 const char *service_name;
295 const char **argv;
296 char *service_url;
297 char *hdr_content_type;
298 char *hdr_accept;
299 char *buf;
300 size_t alloc;
301 size_t len;
302 size_t pos;
303 int in;
304 int out;
305 struct strbuf result;
b8538603 306 unsigned gzip_request : 1;
6c81a990 307 unsigned initial_buffer : 1;
de1a2fdd
SP
308};
309
310static size_t rpc_out(void *ptr, size_t eltsize,
311 size_t nmemb, void *buffer_)
312{
313 size_t max = eltsize * nmemb;
314 struct rpc_state *rpc = buffer_;
315 size_t avail = rpc->len - rpc->pos;
316
317 if (!avail) {
6c81a990 318 rpc->initial_buffer = 0;
de1a2fdd
SP
319 avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
320 if (!avail)
321 return 0;
322 rpc->pos = 0;
323 rpc->len = avail;
324 }
325
48310608 326 if (max < avail)
de1a2fdd
SP
327 avail = max;
328 memcpy(ptr, rpc->buf + rpc->pos, avail);
329 rpc->pos += avail;
330 return avail;
331}
332
6c81a990 333#ifndef NO_CURL_IOCTL
5092d3ec 334static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp)
6c81a990
MS
335{
336 struct rpc_state *rpc = clientp;
337
338 switch (cmd) {
339 case CURLIOCMD_NOP:
340 return CURLIOE_OK;
341
342 case CURLIOCMD_RESTARTREAD:
343 if (rpc->initial_buffer) {
344 rpc->pos = 0;
345 return CURLIOE_OK;
346 }
347 fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n");
348 return CURLIOE_FAILRESTART;
349
350 default:
351 return CURLIOE_UNKNOWNCMD;
352 }
353}
354#endif
355
de1a2fdd
SP
356static size_t rpc_in(const void *ptr, size_t eltsize,
357 size_t nmemb, void *buffer_)
358{
359 size_t size = eltsize * nmemb;
360 struct rpc_state *rpc = buffer_;
361 write_or_die(rpc->in, ptr, size);
362 return size;
363}
364
365static int post_rpc(struct rpc_state *rpc)
366{
367 struct active_request_slot *slot;
368 struct slot_results results;
369 struct curl_slist *headers = NULL;
b8538603
SP
370 int use_gzip = rpc->gzip_request;
371 char *gzip_body = NULL;
de1a2fdd
SP
372 int err = 0, large_request = 0;
373
374 /* Try to load the entire request, if we can fit it into the
375 * allocated buffer space we can use HTTP/1.0 and avoid the
376 * chunked encoding mess.
377 */
378 while (1) {
379 size_t left = rpc->alloc - rpc->len;
380 char *buf = rpc->buf + rpc->len;
381 int n;
382
383 if (left < LARGE_PACKET_MAX) {
384 large_request = 1;
b8538603 385 use_gzip = 0;
de1a2fdd
SP
386 break;
387 }
388
389 n = packet_read_line(rpc->out, buf, left);
390 if (!n)
391 break;
392 rpc->len += n;
393 }
394
395 slot = get_active_slot();
396 slot->results = &results;
397
de1a2fdd 398 curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
d21f9794 399 curl_easy_setopt(slot->curl, CURLOPT_POST, 1);
de1a2fdd 400 curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url);
b8538603 401 curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "");
de1a2fdd
SP
402
403 headers = curl_slist_append(headers, rpc->hdr_content_type);
404 headers = curl_slist_append(headers, rpc->hdr_accept);
405
406 if (large_request) {
407 /* The request body is large and the size cannot be predicted.
408 * We must use chunked encoding to send it.
409 */
410 headers = curl_slist_append(headers, "Expect: 100-continue");
411 headers = curl_slist_append(headers, "Transfer-Encoding: chunked");
6c81a990 412 rpc->initial_buffer = 1;
de1a2fdd
SP
413 curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out);
414 curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc);
6c81a990
MS
415#ifndef NO_CURL_IOCTL
416 curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl);
417 curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc);
418#endif
de1a2fdd
SP
419 if (options.verbosity > 1) {
420 fprintf(stderr, "POST %s (chunked)\n", rpc->service_name);
421 fflush(stderr);
422 }
423
b8538603
SP
424 } else if (use_gzip && 1024 < rpc->len) {
425 /* The client backend isn't giving us compressed data so
426 * we can try to deflate it ourselves, this may save on.
427 * the transfer time.
428 */
429 size_t size;
430 z_stream stream;
431 int ret;
432
433 memset(&stream, 0, sizeof(stream));
434 ret = deflateInit2(&stream, Z_BEST_COMPRESSION,
435 Z_DEFLATED, (15 + 16),
436 8, Z_DEFAULT_STRATEGY);
437 if (ret != Z_OK)
438 die("cannot deflate request; zlib init error %d", ret);
439 size = deflateBound(&stream, rpc->len);
440 gzip_body = xmalloc(size);
441
442 stream.next_in = (unsigned char *)rpc->buf;
443 stream.avail_in = rpc->len;
444 stream.next_out = (unsigned char *)gzip_body;
445 stream.avail_out = size;
446
447 ret = deflate(&stream, Z_FINISH);
448 if (ret != Z_STREAM_END)
449 die("cannot deflate request; zlib deflate error %d", ret);
450
451 ret = deflateEnd(&stream);
452 if (ret != Z_OK)
453 die("cannot deflate request; zlib end error %d", ret);
454
455 size = stream.total_out;
456
457 headers = curl_slist_append(headers, "Content-Encoding: gzip");
458 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body);
459 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size);
460
461 if (options.verbosity > 1) {
462 fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n",
463 rpc->service_name,
464 (unsigned long)rpc->len, (unsigned long)size);
465 fflush(stderr);
466 }
de1a2fdd
SP
467 } else {
468 /* We know the complete request size in advance, use the
469 * more normal Content-Length approach.
470 */
471 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf);
472 curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len);
473 if (options.verbosity > 1) {
474 fprintf(stderr, "POST %s (%lu bytes)\n",
475 rpc->service_name, (unsigned long)rpc->len);
476 fflush(stderr);
477 }
478 }
479
480 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
481 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in);
482 curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc);
483
484 slot->curl_result = curl_easy_perform(slot->curl);
485 finish_active_slot(slot);
486
487 if (results.curl_result != CURLE_OK) {
488 err |= error("RPC failed; result=%d, HTTP code = %ld",
489 results.curl_result, results.http_code);
490 }
491
492 curl_slist_free_all(headers);
b8538603 493 free(gzip_body);
de1a2fdd
SP
494 return err;
495}
496
497static int rpc_service(struct rpc_state *rpc, struct discovery *heads)
498{
499 const char *svc = rpc->service_name;
500 struct strbuf buf = STRBUF_INIT;
501 struct child_process client;
502 int err = 0;
503
504 init_walker();
505 memset(&client, 0, sizeof(client));
506 client.in = -1;
507 client.out = -1;
508 client.git_cmd = 1;
509 client.argv = rpc->argv;
510 if (start_command(&client))
511 exit(1);
512 if (heads)
513 write_or_die(client.in, heads->buf, heads->len);
514
515 rpc->alloc = http_post_buffer;
516 rpc->buf = xmalloc(rpc->alloc);
517 rpc->in = client.in;
518 rpc->out = client.out;
519 strbuf_init(&rpc->result, 0);
520
521 strbuf_addf(&buf, "%s/%s", url, svc);
522 rpc->service_url = strbuf_detach(&buf, NULL);
523
524 strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc);
525 rpc->hdr_content_type = strbuf_detach(&buf, NULL);
526
8efa5f62 527 strbuf_addf(&buf, "Accept: application/x-%s-result", svc);
de1a2fdd
SP
528 rpc->hdr_accept = strbuf_detach(&buf, NULL);
529
530 while (!err) {
531 int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc);
532 if (!n)
533 break;
534 rpc->pos = 0;
535 rpc->len = n;
536 err |= post_rpc(rpc);
537 }
538 strbuf_read(&rpc->result, client.out, 0);
539
540 close(client.in);
541 close(client.out);
542 client.in = -1;
543 client.out = -1;
544
545 err |= finish_command(&client);
546 free(rpc->service_url);
547 free(rpc->hdr_content_type);
548 free(rpc->hdr_accept);
549 free(rpc->buf);
550 strbuf_release(&buf);
551 return err;
552}
553
292ce46b
SP
554static int fetch_dumb(int nr_heads, struct ref **to_fetch)
555{
556 char **targets = xmalloc(nr_heads * sizeof(char*));
557 int ret, i;
558
249b2004
SP
559 if (options.depth)
560 die("dumb http transport does not support --depth");
292ce46b
SP
561 for (i = 0; i < nr_heads; i++)
562 targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
563
564 init_walker();
565 walker->get_all = 1;
566 walker->get_tree = 1;
567 walker->get_history = 1;
ef08ef9e 568 walker->get_verbosely = options.verbosity >= 3;
292ce46b
SP
569 walker->get_recover = 0;
570 ret = walker_fetch(walker, nr_heads, targets, NULL, NULL);
571
572 for (i = 0; i < nr_heads; i++)
573 free(targets[i]);
574 free(targets);
575
576 return ret ? error("Fetch failed.") : 0;
577}
578
249b2004
SP
579static int fetch_git(struct discovery *heads,
580 int nr_heads, struct ref **to_fetch)
581{
582 struct rpc_state rpc;
583 char *depth_arg = NULL;
584 const char **argv;
585 int argc = 0, i, err;
586
587 argv = xmalloc((15 + nr_heads) * sizeof(char*));
588 argv[argc++] = "fetch-pack";
589 argv[argc++] = "--stateless-rpc";
590 argv[argc++] = "--lock-pack";
591 if (options.followtags)
592 argv[argc++] = "--include-tag";
593 if (options.thin)
594 argv[argc++] = "--thin";
595 if (options.verbosity >= 3) {
596 argv[argc++] = "-v";
597 argv[argc++] = "-v";
598 }
599 if (!options.progress)
600 argv[argc++] = "--no-progress";
601 if (options.depth) {
602 struct strbuf buf = STRBUF_INIT;
603 strbuf_addf(&buf, "--depth=%lu", options.depth);
604 depth_arg = strbuf_detach(&buf, NULL);
605 argv[argc++] = depth_arg;
606 }
607 argv[argc++] = url;
608 for (i = 0; i < nr_heads; i++) {
609 struct ref *ref = to_fetch[i];
610 if (!ref->name || !*ref->name)
611 die("cannot fetch by sha1 over smart http");
612 argv[argc++] = ref->name;
613 }
614 argv[argc++] = NULL;
615
616 memset(&rpc, 0, sizeof(rpc));
617 rpc.service_name = "git-upload-pack",
618 rpc.argv = argv;
b8538603 619 rpc.gzip_request = 1;
249b2004
SP
620
621 err = rpc_service(&rpc, heads);
622 if (rpc.result.len)
623 safe_write(1, rpc.result.buf, rpc.result.len);
624 strbuf_release(&rpc.result);
625 free(argv);
626 free(depth_arg);
627 return err;
628}
629
630static int fetch(int nr_heads, struct ref **to_fetch)
631{
632 struct discovery *d = discover_refs("git-upload-pack");
633 if (d->proto_git)
634 return fetch_git(d, nr_heads, to_fetch);
635 else
636 return fetch_dumb(nr_heads, to_fetch);
637}
638
292ce46b
SP
639static void parse_fetch(struct strbuf *buf)
640{
641 struct ref **to_fetch = NULL;
642 struct ref *list_head = NULL;
643 struct ref **list = &list_head;
644 int alloc_heads = 0, nr_heads = 0;
645
646 do {
647 if (!prefixcmp(buf->buf, "fetch ")) {
648 char *p = buf->buf + strlen("fetch ");
649 char *name;
650 struct ref *ref;
651 unsigned char old_sha1[20];
652
653 if (strlen(p) < 40 || get_sha1_hex(p, old_sha1))
654 die("protocol error: expected sha/ref, got %s'", p);
655 if (p[40] == ' ')
656 name = p + 41;
657 else if (!p[40])
658 name = "";
659 else
660 die("protocol error: expected sha/ref, got %s'", p);
661
662 ref = alloc_ref(name);
663 hashcpy(ref->old_sha1, old_sha1);
664
665 *list = ref;
666 list = &ref->next;
667
668 ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads);
669 to_fetch[nr_heads++] = ref;
670 }
671 else
672 die("http transport does not support %s", buf->buf);
673
674 strbuf_reset(buf);
675 if (strbuf_getline(buf, stdin, '\n') == EOF)
676 return;
677 if (!*buf->buf)
678 break;
679 } while (1);
680
249b2004 681 if (fetch(nr_heads, to_fetch))
292ce46b
SP
682 exit(128); /* error already reported */
683 free_refs(list_head);
684 free(to_fetch);
685
686 printf("\n");
687 fflush(stdout);
688 strbuf_reset(buf);
689}
690
ae4efe19
SP
691static int push_dav(int nr_spec, char **specs)
692{
693 const char **argv = xmalloc((10 + nr_spec) * sizeof(char*));
694 int argc = 0, i;
695
696 argv[argc++] = "http-push";
697 argv[argc++] = "--helper-status";
698 if (options.dry_run)
699 argv[argc++] = "--dry-run";
700 if (options.verbosity > 1)
701 argv[argc++] = "--verbose";
702 argv[argc++] = url;
703 for (i = 0; i < nr_spec; i++)
704 argv[argc++] = specs[i];
705 argv[argc++] = NULL;
706
707 if (run_command_v_opt(argv, RUN_GIT_CMD))
708 die("git-%s failed", argv[0]);
709 free(argv);
710 return 0;
711}
712
de1a2fdd
SP
713static int push_git(struct discovery *heads, int nr_spec, char **specs)
714{
715 struct rpc_state rpc;
716 const char **argv;
717 int argc = 0, i, err;
718
719 argv = xmalloc((10 + nr_spec) * sizeof(char*));
720 argv[argc++] = "send-pack";
721 argv[argc++] = "--stateless-rpc";
722 argv[argc++] = "--helper-status";
723 if (options.thin)
724 argv[argc++] = "--thin";
725 if (options.dry_run)
726 argv[argc++] = "--dry-run";
727 if (options.verbosity > 1)
728 argv[argc++] = "--verbose";
729 argv[argc++] = url;
730 for (i = 0; i < nr_spec; i++)
731 argv[argc++] = specs[i];
732 argv[argc++] = NULL;
733
734 memset(&rpc, 0, sizeof(rpc));
735 rpc.service_name = "git-receive-pack",
736 rpc.argv = argv;
737
738 err = rpc_service(&rpc, heads);
739 if (rpc.result.len)
740 safe_write(1, rpc.result.buf, rpc.result.len);
741 strbuf_release(&rpc.result);
742 free(argv);
743 return err;
744}
745
746static int push(int nr_spec, char **specs)
747{
748 struct discovery *heads = discover_refs("git-receive-pack");
749 int ret;
750
751 if (heads->proto_git)
752 ret = push_git(heads, nr_spec, specs);
753 else
754 ret = push_dav(nr_spec, specs);
755 free_discovery(heads);
756 return ret;
757}
758
ae4efe19
SP
759static void parse_push(struct strbuf *buf)
760{
761 char **specs = NULL;
762 int alloc_spec = 0, nr_spec = 0, i;
763
764 do {
765 if (!prefixcmp(buf->buf, "push ")) {
766 ALLOC_GROW(specs, nr_spec + 1, alloc_spec);
767 specs[nr_spec++] = xstrdup(buf->buf + 5);
768 }
769 else
770 die("http transport does not support %s", buf->buf);
771
772 strbuf_reset(buf);
773 if (strbuf_getline(buf, stdin, '\n') == EOF)
774 return;
775 if (!*buf->buf)
776 break;
777 } while (1);
778
de1a2fdd 779 if (push(nr_spec, specs))
ae4efe19
SP
780 exit(128); /* error already reported */
781 for (i = 0; i < nr_spec; i++)
782 free(specs[i]);
783 free(specs);
784
785 printf("\n");
786 fflush(stdout);
787}
788
a2d725b7
DB
789int main(int argc, const char **argv)
790{
a2d725b7 791 struct strbuf buf = STRBUF_INIT;
a45d3d7e 792 int nongit;
a2d725b7 793
c6dfb399 794 git_extract_argv0_path(argv[0]);
a45d3d7e 795 setup_git_directory_gently(&nongit);
a2d725b7
DB
796 if (argc < 2) {
797 fprintf(stderr, "Remote needed\n");
798 return 1;
799 }
800
ef08ef9e
SP
801 options.verbosity = 1;
802 options.progress = !!isatty(2);
de1a2fdd 803 options.thin = 1;
ef08ef9e 804
a2d725b7
DB
805 remote = remote_get(argv[1]);
806
807 if (argc > 2) {
808 url = argv[2];
809 } else {
810 url = remote->url[0];
811 }
812
813 do {
814 if (strbuf_getline(&buf, stdin, '\n') == EOF)
815 break;
816 if (!prefixcmp(buf.buf, "fetch ")) {
a45d3d7e
DB
817 if (nongit)
818 die("Fetch attempted without a local repo");
292ce46b
SP
819 parse_fetch(&buf);
820
ae4efe19 821 } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) {
97cc7bc4
SP
822 int for_push = !!strstr(buf.buf + 4, "for-push");
823 output_refs(get_refs(for_push));
ae4efe19
SP
824
825 } else if (!prefixcmp(buf.buf, "push ")) {
826 parse_push(&buf);
827
ef08ef9e
SP
828 } else if (!prefixcmp(buf.buf, "option ")) {
829 char *name = buf.buf + strlen("option ");
830 char *value = strchr(name, ' ');
831 int result;
832
833 if (value)
834 *value++ = '\0';
835 else
836 value = "true";
837
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");
a2d725b7 845 fflush(stdout);
ef08ef9e 846
a2d725b7
DB
847 } else if (!strcmp(buf.buf, "capabilities")) {
848 printf("fetch\n");
ef08ef9e 849 printf("option\n");
ae4efe19 850 printf("push\n");
a2d725b7
DB
851 printf("\n");
852 fflush(stdout);
853 } else {
854 return 1;
855 }
856 strbuf_reset(&buf);
857 } while (1);
858 return 0;
859}