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Commit | Line | Data |
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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 |
11 | static struct remote *remote; |
12 | static const char *url; | |
13 | static struct walker *walker; | |
14 | ||
ef08ef9e SP |
15 | struct 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 | }; |
23 | static struct options options; | |
24 | ||
37a8768f SP |
25 | static void init_walker(void) |
26 | { | |
27 | if (!walker) | |
28 | walker = get_http_walker(url, remote); | |
29 | } | |
30 | ||
ef08ef9e SP |
31 | static 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 |
81 | struct discovery { |
82 | const char *service; | |
83 | char *buf_alloc; | |
84 | char *buf; | |
85 | size_t len; | |
86 | unsigned proto_git : 1; | |
87 | }; | |
88 | static struct discovery *last_discovery; | |
89 | ||
90 | static 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 | ||
100 | static struct discovery* discover_refs(const char *service) | |
a2d725b7 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 | ||
a2d725b7 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 | ||
97cc7bc4 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 | ||
ae6a5609 | 187 | static int write_discovery(int in, int out, void *data) |
97cc7bc4 SP |
188 | { |
189 | struct discovery *heads = data; | |
190 | int err = 0; | |
ae6a5609 | 191 | if (write_in_full(out, heads->buf, heads->len) != heads->len) |
97cc7bc4 | 192 | err = 1; |
ae6a5609 | 193 | close(out); |
97cc7bc4 SP |
194 | return err; |
195 | } | |
196 | ||
197 | static 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; | |
ae6a5609 | 205 | async.out = -1; |
97cc7bc4 SP |
206 | |
207 | if (start_async(&async)) | |
208 | die("cannot start thread to parse advertised refs"); | |
209 | get_remote_heads(async.out, &list, 0, NULL, 0, NULL); | |
210 | close(async.out); | |
211 | if (finish_async(&async)) | |
212 | die("ref parsing thread failed"); | |
213 | return list; | |
214 | } | |
215 | ||
216 | static struct ref *parse_info_refs(struct discovery *heads) | |
217 | { | |
218 | char *data, *start, *mid; | |
219 | char *ref_name; | |
220 | int i = 0; | |
221 | ||
222 | struct ref *refs = NULL; | |
223 | struct ref *ref = NULL; | |
224 | struct ref *last_ref = NULL; | |
225 | ||
226 | data = heads->buf; | |
a2d725b7 DB |
227 | start = NULL; |
228 | mid = data; | |
97cc7bc4 | 229 | while (i < heads->len) { |
a2d725b7 DB |
230 | if (!start) { |
231 | start = &data[i]; | |
232 | } | |
233 | if (data[i] == '\t') | |
234 | mid = &data[i]; | |
235 | if (data[i] == '\n') { | |
236 | data[i] = 0; | |
237 | ref_name = mid + 1; | |
238 | ref = xmalloc(sizeof(struct ref) + | |
239 | strlen(ref_name) + 1); | |
240 | memset(ref, 0, sizeof(struct ref)); | |
241 | strcpy(ref->name, ref_name); | |
242 | get_sha1_hex(start, ref->old_sha1); | |
243 | if (!refs) | |
244 | refs = ref; | |
245 | if (last_ref) | |
246 | last_ref->next = ref; | |
247 | last_ref = ref; | |
248 | start = NULL; | |
249 | } | |
250 | i++; | |
251 | } | |
252 | ||
97cc7bc4 | 253 | init_walker(); |
a2d725b7 DB |
254 | ref = alloc_ref("HEAD"); |
255 | if (!walker->fetch_ref(walker, ref) && | |
256 | !resolve_remote_symref(ref, refs)) { | |
257 | ref->next = refs; | |
258 | refs = ref; | |
259 | } else { | |
260 | free(ref); | |
261 | } | |
262 | ||
a2d725b7 DB |
263 | return refs; |
264 | } | |
265 | ||
97cc7bc4 SP |
266 | static struct ref *get_refs(int for_push) |
267 | { | |
268 | struct discovery *heads; | |
269 | ||
270 | if (for_push) | |
271 | heads = discover_refs("git-receive-pack"); | |
272 | else | |
273 | heads = discover_refs("git-upload-pack"); | |
274 | ||
275 | if (heads->proto_git) | |
276 | return parse_git_refs(heads); | |
277 | return parse_info_refs(heads); | |
278 | } | |
279 | ||
ae4efe19 SP |
280 | static void output_refs(struct ref *refs) |
281 | { | |
282 | struct ref *posn; | |
283 | for (posn = refs; posn; posn = posn->next) { | |
284 | if (posn->symref) | |
285 | printf("@%s %s\n", posn->symref, posn->name); | |
286 | else | |
287 | printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name); | |
288 | } | |
289 | printf("\n"); | |
290 | fflush(stdout); | |
291 | free_refs(refs); | |
292 | } | |
293 | ||
de1a2fdd SP |
294 | struct rpc_state { |
295 | const char *service_name; | |
296 | const char **argv; | |
297 | char *service_url; | |
298 | char *hdr_content_type; | |
299 | char *hdr_accept; | |
300 | char *buf; | |
301 | size_t alloc; | |
302 | size_t len; | |
303 | size_t pos; | |
304 | int in; | |
305 | int out; | |
306 | struct strbuf result; | |
b8538603 | 307 | unsigned gzip_request : 1; |
6c81a990 | 308 | unsigned initial_buffer : 1; |
de1a2fdd SP |
309 | }; |
310 | ||
311 | static size_t rpc_out(void *ptr, size_t eltsize, | |
312 | size_t nmemb, void *buffer_) | |
313 | { | |
314 | size_t max = eltsize * nmemb; | |
315 | struct rpc_state *rpc = buffer_; | |
316 | size_t avail = rpc->len - rpc->pos; | |
317 | ||
318 | if (!avail) { | |
6c81a990 | 319 | rpc->initial_buffer = 0; |
de1a2fdd SP |
320 | avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc); |
321 | if (!avail) | |
322 | return 0; | |
323 | rpc->pos = 0; | |
324 | rpc->len = avail; | |
325 | } | |
326 | ||
48310608 | 327 | if (max < avail) |
de1a2fdd SP |
328 | avail = max; |
329 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
330 | rpc->pos += avail; | |
331 | return avail; | |
332 | } | |
333 | ||
6c81a990 | 334 | #ifndef NO_CURL_IOCTL |
5092d3ec | 335 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
336 | { |
337 | struct rpc_state *rpc = clientp; | |
338 | ||
339 | switch (cmd) { | |
340 | case CURLIOCMD_NOP: | |
341 | return CURLIOE_OK; | |
342 | ||
343 | case CURLIOCMD_RESTARTREAD: | |
344 | if (rpc->initial_buffer) { | |
345 | rpc->pos = 0; | |
346 | return CURLIOE_OK; | |
347 | } | |
348 | fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n"); | |
349 | return CURLIOE_FAILRESTART; | |
350 | ||
351 | default: | |
352 | return CURLIOE_UNKNOWNCMD; | |
353 | } | |
354 | } | |
355 | #endif | |
356 | ||
de1a2fdd SP |
357 | static size_t rpc_in(const void *ptr, size_t eltsize, |
358 | size_t nmemb, void *buffer_) | |
359 | { | |
360 | size_t size = eltsize * nmemb; | |
361 | struct rpc_state *rpc = buffer_; | |
362 | write_or_die(rpc->in, ptr, size); | |
363 | return size; | |
364 | } | |
365 | ||
366 | static int post_rpc(struct rpc_state *rpc) | |
367 | { | |
368 | struct active_request_slot *slot; | |
369 | struct slot_results results; | |
370 | struct curl_slist *headers = NULL; | |
b8538603 SP |
371 | int use_gzip = rpc->gzip_request; |
372 | char *gzip_body = NULL; | |
de1a2fdd SP |
373 | int err = 0, large_request = 0; |
374 | ||
375 | /* Try to load the entire request, if we can fit it into the | |
376 | * allocated buffer space we can use HTTP/1.0 and avoid the | |
377 | * chunked encoding mess. | |
378 | */ | |
379 | while (1) { | |
380 | size_t left = rpc->alloc - rpc->len; | |
381 | char *buf = rpc->buf + rpc->len; | |
382 | int n; | |
383 | ||
384 | if (left < LARGE_PACKET_MAX) { | |
385 | large_request = 1; | |
b8538603 | 386 | use_gzip = 0; |
de1a2fdd SP |
387 | break; |
388 | } | |
389 | ||
390 | n = packet_read_line(rpc->out, buf, left); | |
391 | if (!n) | |
392 | break; | |
393 | rpc->len += n; | |
394 | } | |
395 | ||
396 | slot = get_active_slot(); | |
397 | slot->results = &results; | |
398 | ||
de1a2fdd | 399 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
d21f9794 | 400 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); |
de1a2fdd | 401 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); |
b8538603 | 402 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); |
de1a2fdd SP |
403 | |
404 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
405 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
406 | ||
407 | if (large_request) { | |
408 | /* The request body is large and the size cannot be predicted. | |
409 | * We must use chunked encoding to send it. | |
410 | */ | |
411 | headers = curl_slist_append(headers, "Expect: 100-continue"); | |
412 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); | |
6c81a990 | 413 | rpc->initial_buffer = 1; |
de1a2fdd SP |
414 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
415 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
416 | #ifndef NO_CURL_IOCTL |
417 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
418 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
419 | #endif | |
de1a2fdd SP |
420 | if (options.verbosity > 1) { |
421 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
422 | fflush(stderr); | |
423 | } | |
424 | ||
b8538603 SP |
425 | } else if (use_gzip && 1024 < rpc->len) { |
426 | /* The client backend isn't giving us compressed data so | |
427 | * we can try to deflate it ourselves, this may save on. | |
428 | * the transfer time. | |
429 | */ | |
430 | size_t size; | |
431 | z_stream stream; | |
432 | int ret; | |
433 | ||
434 | memset(&stream, 0, sizeof(stream)); | |
435 | ret = deflateInit2(&stream, Z_BEST_COMPRESSION, | |
436 | Z_DEFLATED, (15 + 16), | |
437 | 8, Z_DEFAULT_STRATEGY); | |
438 | if (ret != Z_OK) | |
439 | die("cannot deflate request; zlib init error %d", ret); | |
440 | size = deflateBound(&stream, rpc->len); | |
441 | gzip_body = xmalloc(size); | |
442 | ||
443 | stream.next_in = (unsigned char *)rpc->buf; | |
444 | stream.avail_in = rpc->len; | |
445 | stream.next_out = (unsigned char *)gzip_body; | |
446 | stream.avail_out = size; | |
447 | ||
448 | ret = deflate(&stream, Z_FINISH); | |
449 | if (ret != Z_STREAM_END) | |
450 | die("cannot deflate request; zlib deflate error %d", ret); | |
451 | ||
452 | ret = deflateEnd(&stream); | |
453 | if (ret != Z_OK) | |
454 | die("cannot deflate request; zlib end error %d", ret); | |
455 | ||
456 | size = stream.total_out; | |
457 | ||
458 | headers = curl_slist_append(headers, "Content-Encoding: gzip"); | |
459 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
460 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size); | |
461 | ||
462 | if (options.verbosity > 1) { | |
463 | fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n", | |
464 | rpc->service_name, | |
465 | (unsigned long)rpc->len, (unsigned long)size); | |
466 | fflush(stderr); | |
467 | } | |
de1a2fdd SP |
468 | } else { |
469 | /* We know the complete request size in advance, use the | |
470 | * more normal Content-Length approach. | |
471 | */ | |
472 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf); | |
473 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len); | |
474 | if (options.verbosity > 1) { | |
475 | fprintf(stderr, "POST %s (%lu bytes)\n", | |
476 | rpc->service_name, (unsigned long)rpc->len); | |
477 | fflush(stderr); | |
478 | } | |
479 | } | |
480 | ||
481 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
482 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in); | |
483 | curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc); | |
484 | ||
485 | slot->curl_result = curl_easy_perform(slot->curl); | |
486 | finish_active_slot(slot); | |
487 | ||
488 | if (results.curl_result != CURLE_OK) { | |
489 | err |= error("RPC failed; result=%d, HTTP code = %ld", | |
490 | results.curl_result, results.http_code); | |
491 | } | |
492 | ||
493 | curl_slist_free_all(headers); | |
b8538603 | 494 | free(gzip_body); |
de1a2fdd SP |
495 | return err; |
496 | } | |
497 | ||
498 | static int rpc_service(struct rpc_state *rpc, struct discovery *heads) | |
499 | { | |
500 | const char *svc = rpc->service_name; | |
501 | struct strbuf buf = STRBUF_INIT; | |
502 | struct child_process client; | |
503 | int err = 0; | |
504 | ||
505 | init_walker(); | |
506 | memset(&client, 0, sizeof(client)); | |
507 | client.in = -1; | |
508 | client.out = -1; | |
509 | client.git_cmd = 1; | |
510 | client.argv = rpc->argv; | |
511 | if (start_command(&client)) | |
512 | exit(1); | |
513 | if (heads) | |
514 | write_or_die(client.in, heads->buf, heads->len); | |
515 | ||
516 | rpc->alloc = http_post_buffer; | |
517 | rpc->buf = xmalloc(rpc->alloc); | |
518 | rpc->in = client.in; | |
519 | rpc->out = client.out; | |
520 | strbuf_init(&rpc->result, 0); | |
521 | ||
522 | strbuf_addf(&buf, "%s/%s", url, svc); | |
523 | rpc->service_url = strbuf_detach(&buf, NULL); | |
524 | ||
525 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
526 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
527 | ||
8efa5f62 | 528 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
529 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
530 | ||
531 | while (!err) { | |
532 | int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc); | |
533 | if (!n) | |
534 | break; | |
535 | rpc->pos = 0; | |
536 | rpc->len = n; | |
537 | err |= post_rpc(rpc); | |
538 | } | |
539 | strbuf_read(&rpc->result, client.out, 0); | |
540 | ||
541 | close(client.in); | |
542 | close(client.out); | |
543 | client.in = -1; | |
544 | client.out = -1; | |
545 | ||
546 | err |= finish_command(&client); | |
547 | free(rpc->service_url); | |
548 | free(rpc->hdr_content_type); | |
549 | free(rpc->hdr_accept); | |
550 | free(rpc->buf); | |
551 | strbuf_release(&buf); | |
552 | return err; | |
553 | } | |
554 | ||
292ce46b SP |
555 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
556 | { | |
557 | char **targets = xmalloc(nr_heads * sizeof(char*)); | |
558 | int ret, i; | |
559 | ||
249b2004 SP |
560 | if (options.depth) |
561 | die("dumb http transport does not support --depth"); | |
292ce46b SP |
562 | for (i = 0; i < nr_heads; i++) |
563 | targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
564 | ||
565 | init_walker(); | |
566 | walker->get_all = 1; | |
567 | walker->get_tree = 1; | |
568 | walker->get_history = 1; | |
ef08ef9e | 569 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
570 | walker->get_recover = 0; |
571 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
572 | ||
573 | for (i = 0; i < nr_heads; i++) | |
574 | free(targets[i]); | |
575 | free(targets); | |
576 | ||
577 | return ret ? error("Fetch failed.") : 0; | |
578 | } | |
579 | ||
249b2004 SP |
580 | static int fetch_git(struct discovery *heads, |
581 | int nr_heads, struct ref **to_fetch) | |
582 | { | |
583 | struct rpc_state rpc; | |
584 | char *depth_arg = NULL; | |
585 | const char **argv; | |
586 | int argc = 0, i, err; | |
587 | ||
588 | argv = xmalloc((15 + nr_heads) * sizeof(char*)); | |
589 | argv[argc++] = "fetch-pack"; | |
590 | argv[argc++] = "--stateless-rpc"; | |
591 | argv[argc++] = "--lock-pack"; | |
592 | if (options.followtags) | |
593 | argv[argc++] = "--include-tag"; | |
594 | if (options.thin) | |
595 | argv[argc++] = "--thin"; | |
596 | if (options.verbosity >= 3) { | |
597 | argv[argc++] = "-v"; | |
598 | argv[argc++] = "-v"; | |
599 | } | |
600 | if (!options.progress) | |
601 | argv[argc++] = "--no-progress"; | |
602 | if (options.depth) { | |
603 | struct strbuf buf = STRBUF_INIT; | |
604 | strbuf_addf(&buf, "--depth=%lu", options.depth); | |
605 | depth_arg = strbuf_detach(&buf, NULL); | |
606 | argv[argc++] = depth_arg; | |
607 | } | |
608 | argv[argc++] = url; | |
609 | for (i = 0; i < nr_heads; i++) { | |
610 | struct ref *ref = to_fetch[i]; | |
611 | if (!ref->name || !*ref->name) | |
612 | die("cannot fetch by sha1 over smart http"); | |
613 | argv[argc++] = ref->name; | |
614 | } | |
615 | argv[argc++] = NULL; | |
616 | ||
617 | memset(&rpc, 0, sizeof(rpc)); | |
618 | rpc.service_name = "git-upload-pack", | |
619 | rpc.argv = argv; | |
b8538603 | 620 | rpc.gzip_request = 1; |
249b2004 SP |
621 | |
622 | err = rpc_service(&rpc, heads); | |
623 | if (rpc.result.len) | |
624 | safe_write(1, rpc.result.buf, rpc.result.len); | |
625 | strbuf_release(&rpc.result); | |
626 | free(argv); | |
627 | free(depth_arg); | |
628 | return err; | |
629 | } | |
630 | ||
631 | static int fetch(int nr_heads, struct ref **to_fetch) | |
632 | { | |
633 | struct discovery *d = discover_refs("git-upload-pack"); | |
634 | if (d->proto_git) | |
635 | return fetch_git(d, nr_heads, to_fetch); | |
636 | else | |
637 | return fetch_dumb(nr_heads, to_fetch); | |
638 | } | |
639 | ||
292ce46b SP |
640 | static void parse_fetch(struct strbuf *buf) |
641 | { | |
642 | struct ref **to_fetch = NULL; | |
643 | struct ref *list_head = NULL; | |
644 | struct ref **list = &list_head; | |
645 | int alloc_heads = 0, nr_heads = 0; | |
646 | ||
647 | do { | |
648 | if (!prefixcmp(buf->buf, "fetch ")) { | |
649 | char *p = buf->buf + strlen("fetch "); | |
650 | char *name; | |
651 | struct ref *ref; | |
652 | unsigned char old_sha1[20]; | |
653 | ||
654 | if (strlen(p) < 40 || get_sha1_hex(p, old_sha1)) | |
655 | die("protocol error: expected sha/ref, got %s'", p); | |
656 | if (p[40] == ' ') | |
657 | name = p + 41; | |
658 | else if (!p[40]) | |
659 | name = ""; | |
660 | else | |
661 | die("protocol error: expected sha/ref, got %s'", p); | |
662 | ||
663 | ref = alloc_ref(name); | |
664 | hashcpy(ref->old_sha1, old_sha1); | |
665 | ||
666 | *list = ref; | |
667 | list = &ref->next; | |
668 | ||
669 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
670 | to_fetch[nr_heads++] = ref; | |
671 | } | |
672 | else | |
673 | die("http transport does not support %s", buf->buf); | |
674 | ||
675 | strbuf_reset(buf); | |
676 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
677 | return; | |
678 | if (!*buf->buf) | |
679 | break; | |
680 | } while (1); | |
681 | ||
249b2004 | 682 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
683 | exit(128); /* error already reported */ |
684 | free_refs(list_head); | |
685 | free(to_fetch); | |
686 | ||
687 | printf("\n"); | |
688 | fflush(stdout); | |
689 | strbuf_reset(buf); | |
690 | } | |
691 | ||
ae4efe19 SP |
692 | static int push_dav(int nr_spec, char **specs) |
693 | { | |
694 | const char **argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
695 | int argc = 0, i; | |
696 | ||
697 | argv[argc++] = "http-push"; | |
698 | argv[argc++] = "--helper-status"; | |
699 | if (options.dry_run) | |
700 | argv[argc++] = "--dry-run"; | |
701 | if (options.verbosity > 1) | |
702 | argv[argc++] = "--verbose"; | |
703 | argv[argc++] = url; | |
704 | for (i = 0; i < nr_spec; i++) | |
705 | argv[argc++] = specs[i]; | |
706 | argv[argc++] = NULL; | |
707 | ||
708 | if (run_command_v_opt(argv, RUN_GIT_CMD)) | |
709 | die("git-%s failed", argv[0]); | |
710 | free(argv); | |
711 | return 0; | |
712 | } | |
713 | ||
de1a2fdd SP |
714 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
715 | { | |
716 | struct rpc_state rpc; | |
717 | const char **argv; | |
718 | int argc = 0, i, err; | |
719 | ||
720 | argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
721 | argv[argc++] = "send-pack"; | |
722 | argv[argc++] = "--stateless-rpc"; | |
723 | argv[argc++] = "--helper-status"; | |
724 | if (options.thin) | |
725 | argv[argc++] = "--thin"; | |
726 | if (options.dry_run) | |
727 | argv[argc++] = "--dry-run"; | |
728 | if (options.verbosity > 1) | |
729 | argv[argc++] = "--verbose"; | |
730 | argv[argc++] = url; | |
731 | for (i = 0; i < nr_spec; i++) | |
732 | argv[argc++] = specs[i]; | |
733 | argv[argc++] = NULL; | |
734 | ||
735 | memset(&rpc, 0, sizeof(rpc)); | |
736 | rpc.service_name = "git-receive-pack", | |
737 | rpc.argv = argv; | |
738 | ||
739 | err = rpc_service(&rpc, heads); | |
740 | if (rpc.result.len) | |
741 | safe_write(1, rpc.result.buf, rpc.result.len); | |
742 | strbuf_release(&rpc.result); | |
743 | free(argv); | |
744 | return err; | |
745 | } | |
746 | ||
747 | static int push(int nr_spec, char **specs) | |
748 | { | |
749 | struct discovery *heads = discover_refs("git-receive-pack"); | |
750 | int ret; | |
751 | ||
752 | if (heads->proto_git) | |
753 | ret = push_git(heads, nr_spec, specs); | |
754 | else | |
755 | ret = push_dav(nr_spec, specs); | |
756 | free_discovery(heads); | |
757 | return ret; | |
758 | } | |
759 | ||
ae4efe19 SP |
760 | static void parse_push(struct strbuf *buf) |
761 | { | |
762 | char **specs = NULL; | |
763 | int alloc_spec = 0, nr_spec = 0, i; | |
764 | ||
765 | do { | |
766 | if (!prefixcmp(buf->buf, "push ")) { | |
767 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); | |
768 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
769 | } | |
770 | else | |
771 | die("http transport does not support %s", buf->buf); | |
772 | ||
773 | strbuf_reset(buf); | |
774 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
775 | return; | |
776 | if (!*buf->buf) | |
777 | break; | |
778 | } while (1); | |
779 | ||
de1a2fdd | 780 | if (push(nr_spec, specs)) |
ae4efe19 SP |
781 | exit(128); /* error already reported */ |
782 | for (i = 0; i < nr_spec; i++) | |
783 | free(specs[i]); | |
784 | free(specs); | |
785 | ||
786 | printf("\n"); | |
787 | fflush(stdout); | |
788 | } | |
789 | ||
a2d725b7 DB |
790 | int main(int argc, const char **argv) |
791 | { | |
a2d725b7 | 792 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 793 | int nongit; |
a2d725b7 | 794 | |
c6dfb399 | 795 | git_extract_argv0_path(argv[0]); |
a45d3d7e | 796 | setup_git_directory_gently(&nongit); |
a2d725b7 DB |
797 | if (argc < 2) { |
798 | fprintf(stderr, "Remote needed\n"); | |
799 | return 1; | |
800 | } | |
801 | ||
ef08ef9e SP |
802 | options.verbosity = 1; |
803 | options.progress = !!isatty(2); | |
de1a2fdd | 804 | options.thin = 1; |
ef08ef9e | 805 | |
a2d725b7 DB |
806 | remote = remote_get(argv[1]); |
807 | ||
808 | if (argc > 2) { | |
809 | url = argv[2]; | |
810 | } else { | |
811 | url = remote->url[0]; | |
812 | } | |
813 | ||
814 | do { | |
815 | if (strbuf_getline(&buf, stdin, '\n') == EOF) | |
816 | break; | |
817 | if (!prefixcmp(buf.buf, "fetch ")) { | |
a45d3d7e DB |
818 | if (nongit) |
819 | die("Fetch attempted without a local repo"); | |
292ce46b SP |
820 | parse_fetch(&buf); |
821 | ||
ae4efe19 | 822 | } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) { |
97cc7bc4 SP |
823 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
824 | output_refs(get_refs(for_push)); | |
ae4efe19 SP |
825 | |
826 | } else if (!prefixcmp(buf.buf, "push ")) { | |
827 | parse_push(&buf); | |
828 | ||
ef08ef9e SP |
829 | } else if (!prefixcmp(buf.buf, "option ")) { |
830 | char *name = buf.buf + strlen("option "); | |
831 | char *value = strchr(name, ' '); | |
832 | int result; | |
833 | ||
834 | if (value) | |
835 | *value++ = '\0'; | |
836 | else | |
837 | value = "true"; | |
838 | ||
839 | result = set_option(name, value); | |
840 | if (!result) | |
841 | printf("ok\n"); | |
842 | else if (result < 0) | |
843 | printf("error invalid value\n"); | |
844 | else | |
845 | printf("unsupported\n"); | |
a2d725b7 | 846 | fflush(stdout); |
ef08ef9e | 847 | |
a2d725b7 DB |
848 | } else if (!strcmp(buf.buf, "capabilities")) { |
849 | printf("fetch\n"); | |
ef08ef9e | 850 | printf("option\n"); |
ae4efe19 | 851 | printf("push\n"); |
a2d725b7 DB |
852 | printf("\n"); |
853 | fflush(stdout); | |
854 | } else { | |
855 | return 1; | |
856 | } | |
857 | strbuf_reset(&buf); | |
858 | } while (1); | |
859 | return 0; | |
860 | } |