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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; | |
37a8768f | 13 | |
ef08ef9e SP |
14 | struct options { |
15 | int verbosity; | |
16 | unsigned long depth; | |
17 | unsigned progress : 1, | |
ae4efe19 | 18 | followtags : 1, |
de1a2fdd SP |
19 | dry_run : 1, |
20 | thin : 1; | |
ef08ef9e SP |
21 | }; |
22 | static struct options options; | |
23 | ||
ef08ef9e SP |
24 | static int set_option(const char *name, const char *value) |
25 | { | |
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; | |
33 | } | |
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; | |
249b2004 | 41 | return 0; |
ef08ef9e SP |
42 | } |
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; | |
249b2004 | 49 | return 0; |
ef08ef9e SP |
50 | } |
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; | |
249b2004 | 58 | return 0; |
ef08ef9e | 59 | } |
ae4efe19 SP |
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; | |
68 | } | |
ef08ef9e SP |
69 | else { |
70 | return 1 /* unsupported */; | |
71 | } | |
72 | } | |
73 | ||
97cc7bc4 SP |
74 | struct discovery { |
75 | const char *service; | |
76 | char *buf_alloc; | |
77 | char *buf; | |
78 | size_t len; | |
79 | unsigned proto_git : 1; | |
80 | }; | |
81 | static struct discovery *last_discovery; | |
82 | ||
83 | static void free_discovery(struct discovery *d) | |
84 | { | |
85 | if (d) { | |
86 | if (d == last_discovery) | |
87 | last_discovery = NULL; | |
88 | free(d->buf_alloc); | |
89 | free(d); | |
90 | } | |
91 | } | |
92 | ||
93 | static struct discovery* discover_refs(const char *service) | |
a2d725b7 DB |
94 | { |
95 | struct strbuf buffer = STRBUF_INIT; | |
97cc7bc4 | 96 | struct discovery *last = last_discovery; |
a2d725b7 | 97 | char *refs_url; |
703e6e76 | 98 | int http_ret, is_http = 0, proto_git_candidate = 1; |
a2d725b7 | 99 | |
97cc7bc4 SP |
100 | if (last && !strcmp(service, last->service)) |
101 | return last; | |
102 | free_discovery(last); | |
a2d725b7 | 103 | |
97cc7bc4 SP |
104 | strbuf_addf(&buffer, "%s/info/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); | |
112 | } | |
113 | refs_url = strbuf_detach(&buffer, NULL); | |
a2d725b7 DB |
114 | |
115 | http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE); | |
703e6e76 TRC |
116 | |
117 | /* try again with "plain" url (no ? or & appended) */ | |
118 | if (http_ret != HTTP_OK) { | |
119 | free(refs_url); | |
120 | strbuf_reset(&buffer); | |
121 | ||
122 | proto_git_candidate = 0; | |
123 | strbuf_addf(&buffer, "%s/info/refs", url); | |
124 | refs_url = strbuf_detach(&buffer, NULL); | |
125 | ||
126 | http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE); | |
127 | } | |
128 | ||
a2d725b7 DB |
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 | default: | |
136 | http_error(refs_url, http_ret); | |
137 | die("HTTP request failed"); | |
138 | } | |
139 | ||
97cc7bc4 SP |
140 | last= xcalloc(1, sizeof(*last_discovery)); |
141 | last->service = service; | |
142 | last->buf_alloc = strbuf_detach(&buffer, &last->len); | |
143 | last->buf = last->buf_alloc; | |
144 | ||
703e6e76 TRC |
145 | if (is_http && proto_git_candidate |
146 | && 5 <= last->len && last->buf[4] == '#') { | |
97cc7bc4 SP |
147 | /* smart HTTP response; validate that the service |
148 | * pkt-line matches our request. | |
149 | */ | |
150 | struct strbuf exp = STRBUF_INIT; | |
151 | ||
152 | if (packet_get_line(&buffer, &last->buf, &last->len) <= 0) | |
153 | die("%s has invalid packet header", refs_url); | |
154 | if (buffer.len && buffer.buf[buffer.len - 1] == '\n') | |
155 | strbuf_setlen(&buffer, buffer.len - 1); | |
156 | ||
157 | strbuf_addf(&exp, "# service=%s", service); | |
158 | if (strbuf_cmp(&exp, &buffer)) | |
159 | die("invalid server response; got '%s'", buffer.buf); | |
160 | strbuf_release(&exp); | |
161 | ||
162 | /* The header can include additional metadata lines, up | |
163 | * until a packet flush marker. Ignore these now, but | |
164 | * in the future we might start to scan them. | |
165 | */ | |
166 | strbuf_reset(&buffer); | |
167 | while (packet_get_line(&buffer, &last->buf, &last->len) > 0) | |
168 | strbuf_reset(&buffer); | |
169 | ||
170 | last->proto_git = 1; | |
171 | } | |
172 | ||
173 | free(refs_url); | |
174 | strbuf_release(&buffer); | |
175 | last_discovery = last; | |
176 | return last; | |
177 | } | |
178 | ||
ae6a5609 | 179 | static int write_discovery(int in, int out, void *data) |
97cc7bc4 SP |
180 | { |
181 | struct discovery *heads = data; | |
182 | int err = 0; | |
ae6a5609 | 183 | if (write_in_full(out, heads->buf, heads->len) != heads->len) |
97cc7bc4 | 184 | err = 1; |
ae6a5609 | 185 | close(out); |
97cc7bc4 SP |
186 | return err; |
187 | } | |
188 | ||
189 | static struct ref *parse_git_refs(struct discovery *heads) | |
190 | { | |
191 | struct ref *list = NULL; | |
192 | struct async async; | |
193 | ||
194 | memset(&async, 0, sizeof(async)); | |
195 | async.proc = write_discovery; | |
196 | async.data = heads; | |
ae6a5609 | 197 | async.out = -1; |
97cc7bc4 SP |
198 | |
199 | if (start_async(&async)) | |
200 | die("cannot start thread to parse advertised refs"); | |
201 | get_remote_heads(async.out, &list, 0, NULL, 0, NULL); | |
202 | close(async.out); | |
203 | if (finish_async(&async)) | |
204 | die("ref parsing thread failed"); | |
205 | return list; | |
206 | } | |
207 | ||
208 | static struct ref *parse_info_refs(struct discovery *heads) | |
209 | { | |
210 | char *data, *start, *mid; | |
211 | char *ref_name; | |
212 | int i = 0; | |
213 | ||
214 | struct ref *refs = NULL; | |
215 | struct ref *ref = NULL; | |
216 | struct ref *last_ref = NULL; | |
217 | ||
218 | data = heads->buf; | |
a2d725b7 DB |
219 | start = NULL; |
220 | mid = data; | |
97cc7bc4 | 221 | while (i < heads->len) { |
a2d725b7 DB |
222 | if (!start) { |
223 | start = &data[i]; | |
224 | } | |
225 | if (data[i] == '\t') | |
226 | mid = &data[i]; | |
227 | if (data[i] == '\n') { | |
228 | data[i] = 0; | |
229 | ref_name = mid + 1; | |
230 | ref = xmalloc(sizeof(struct ref) + | |
231 | strlen(ref_name) + 1); | |
232 | memset(ref, 0, sizeof(struct ref)); | |
233 | strcpy(ref->name, ref_name); | |
234 | get_sha1_hex(start, ref->old_sha1); | |
235 | if (!refs) | |
236 | refs = ref; | |
237 | if (last_ref) | |
238 | last_ref->next = ref; | |
239 | last_ref = ref; | |
240 | start = NULL; | |
241 | } | |
242 | i++; | |
243 | } | |
244 | ||
a2d725b7 | 245 | ref = alloc_ref("HEAD"); |
aec49756 | 246 | if (!http_fetch_ref(url, ref) && |
a2d725b7 DB |
247 | !resolve_remote_symref(ref, refs)) { |
248 | ref->next = refs; | |
249 | refs = ref; | |
250 | } else { | |
251 | free(ref); | |
252 | } | |
253 | ||
a2d725b7 DB |
254 | return refs; |
255 | } | |
256 | ||
97cc7bc4 SP |
257 | static struct ref *get_refs(int for_push) |
258 | { | |
259 | struct discovery *heads; | |
260 | ||
261 | if (for_push) | |
262 | heads = discover_refs("git-receive-pack"); | |
263 | else | |
264 | heads = discover_refs("git-upload-pack"); | |
265 | ||
266 | if (heads->proto_git) | |
267 | return parse_git_refs(heads); | |
268 | return parse_info_refs(heads); | |
269 | } | |
270 | ||
ae4efe19 SP |
271 | static void output_refs(struct ref *refs) |
272 | { | |
273 | struct ref *posn; | |
274 | for (posn = refs; posn; posn = posn->next) { | |
275 | if (posn->symref) | |
276 | printf("@%s %s\n", posn->symref, posn->name); | |
277 | else | |
278 | printf("%s %s\n", sha1_to_hex(posn->old_sha1), posn->name); | |
279 | } | |
280 | printf("\n"); | |
281 | fflush(stdout); | |
282 | free_refs(refs); | |
283 | } | |
284 | ||
de1a2fdd SP |
285 | struct rpc_state { |
286 | const char *service_name; | |
287 | const char **argv; | |
288 | char *service_url; | |
289 | char *hdr_content_type; | |
290 | char *hdr_accept; | |
291 | char *buf; | |
292 | size_t alloc; | |
293 | size_t len; | |
294 | size_t pos; | |
295 | int in; | |
296 | int out; | |
297 | struct strbuf result; | |
b8538603 | 298 | unsigned gzip_request : 1; |
6c81a990 | 299 | unsigned initial_buffer : 1; |
de1a2fdd SP |
300 | }; |
301 | ||
302 | static size_t rpc_out(void *ptr, size_t eltsize, | |
303 | size_t nmemb, void *buffer_) | |
304 | { | |
305 | size_t max = eltsize * nmemb; | |
306 | struct rpc_state *rpc = buffer_; | |
307 | size_t avail = rpc->len - rpc->pos; | |
308 | ||
309 | if (!avail) { | |
6c81a990 | 310 | rpc->initial_buffer = 0; |
de1a2fdd SP |
311 | avail = packet_read_line(rpc->out, rpc->buf, rpc->alloc); |
312 | if (!avail) | |
313 | return 0; | |
314 | rpc->pos = 0; | |
315 | rpc->len = avail; | |
316 | } | |
317 | ||
48310608 | 318 | if (max < avail) |
de1a2fdd SP |
319 | avail = max; |
320 | memcpy(ptr, rpc->buf + rpc->pos, avail); | |
321 | rpc->pos += avail; | |
322 | return avail; | |
323 | } | |
324 | ||
6c81a990 | 325 | #ifndef NO_CURL_IOCTL |
5092d3ec | 326 | static curlioerr rpc_ioctl(CURL *handle, int cmd, void *clientp) |
6c81a990 MS |
327 | { |
328 | struct rpc_state *rpc = clientp; | |
329 | ||
330 | switch (cmd) { | |
331 | case CURLIOCMD_NOP: | |
332 | return CURLIOE_OK; | |
333 | ||
334 | case CURLIOCMD_RESTARTREAD: | |
335 | if (rpc->initial_buffer) { | |
336 | rpc->pos = 0; | |
337 | return CURLIOE_OK; | |
338 | } | |
339 | fprintf(stderr, "Unable to rewind rpc post data - try increasing http.postBuffer\n"); | |
340 | return CURLIOE_FAILRESTART; | |
341 | ||
342 | default: | |
343 | return CURLIOE_UNKNOWNCMD; | |
344 | } | |
345 | } | |
346 | #endif | |
347 | ||
de1a2fdd SP |
348 | static size_t rpc_in(const void *ptr, size_t eltsize, |
349 | size_t nmemb, void *buffer_) | |
350 | { | |
351 | size_t size = eltsize * nmemb; | |
352 | struct rpc_state *rpc = buffer_; | |
353 | write_or_die(rpc->in, ptr, size); | |
354 | return size; | |
355 | } | |
356 | ||
357 | static int post_rpc(struct rpc_state *rpc) | |
358 | { | |
359 | struct active_request_slot *slot; | |
360 | struct slot_results results; | |
361 | struct curl_slist *headers = NULL; | |
b8538603 SP |
362 | int use_gzip = rpc->gzip_request; |
363 | char *gzip_body = NULL; | |
de1a2fdd SP |
364 | int err = 0, large_request = 0; |
365 | ||
366 | /* Try to load the entire request, if we can fit it into the | |
367 | * allocated buffer space we can use HTTP/1.0 and avoid the | |
368 | * chunked encoding mess. | |
369 | */ | |
370 | while (1) { | |
371 | size_t left = rpc->alloc - rpc->len; | |
372 | char *buf = rpc->buf + rpc->len; | |
373 | int n; | |
374 | ||
375 | if (left < LARGE_PACKET_MAX) { | |
376 | large_request = 1; | |
b8538603 | 377 | use_gzip = 0; |
de1a2fdd SP |
378 | break; |
379 | } | |
380 | ||
381 | n = packet_read_line(rpc->out, buf, left); | |
382 | if (!n) | |
383 | break; | |
384 | rpc->len += n; | |
385 | } | |
386 | ||
387 | slot = get_active_slot(); | |
388 | slot->results = &results; | |
389 | ||
de1a2fdd | 390 | curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0); |
d21f9794 | 391 | curl_easy_setopt(slot->curl, CURLOPT_POST, 1); |
de1a2fdd | 392 | curl_easy_setopt(slot->curl, CURLOPT_URL, rpc->service_url); |
b8538603 | 393 | curl_easy_setopt(slot->curl, CURLOPT_ENCODING, ""); |
de1a2fdd SP |
394 | |
395 | headers = curl_slist_append(headers, rpc->hdr_content_type); | |
396 | headers = curl_slist_append(headers, rpc->hdr_accept); | |
397 | ||
398 | if (large_request) { | |
399 | /* The request body is large and the size cannot be predicted. | |
400 | * We must use chunked encoding to send it. | |
401 | */ | |
402 | headers = curl_slist_append(headers, "Expect: 100-continue"); | |
403 | headers = curl_slist_append(headers, "Transfer-Encoding: chunked"); | |
6c81a990 | 404 | rpc->initial_buffer = 1; |
de1a2fdd SP |
405 | curl_easy_setopt(slot->curl, CURLOPT_READFUNCTION, rpc_out); |
406 | curl_easy_setopt(slot->curl, CURLOPT_INFILE, rpc); | |
6c81a990 MS |
407 | #ifndef NO_CURL_IOCTL |
408 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLFUNCTION, rpc_ioctl); | |
409 | curl_easy_setopt(slot->curl, CURLOPT_IOCTLDATA, rpc); | |
410 | #endif | |
de1a2fdd SP |
411 | if (options.verbosity > 1) { |
412 | fprintf(stderr, "POST %s (chunked)\n", rpc->service_name); | |
413 | fflush(stderr); | |
414 | } | |
415 | ||
b8538603 SP |
416 | } else if (use_gzip && 1024 < rpc->len) { |
417 | /* The client backend isn't giving us compressed data so | |
418 | * we can try to deflate it ourselves, this may save on. | |
419 | * the transfer time. | |
420 | */ | |
421 | size_t size; | |
422 | z_stream stream; | |
423 | int ret; | |
424 | ||
425 | memset(&stream, 0, sizeof(stream)); | |
426 | ret = deflateInit2(&stream, Z_BEST_COMPRESSION, | |
427 | Z_DEFLATED, (15 + 16), | |
428 | 8, Z_DEFAULT_STRATEGY); | |
429 | if (ret != Z_OK) | |
430 | die("cannot deflate request; zlib init error %d", ret); | |
431 | size = deflateBound(&stream, rpc->len); | |
432 | gzip_body = xmalloc(size); | |
433 | ||
434 | stream.next_in = (unsigned char *)rpc->buf; | |
435 | stream.avail_in = rpc->len; | |
436 | stream.next_out = (unsigned char *)gzip_body; | |
437 | stream.avail_out = size; | |
438 | ||
439 | ret = deflate(&stream, Z_FINISH); | |
440 | if (ret != Z_STREAM_END) | |
441 | die("cannot deflate request; zlib deflate error %d", ret); | |
442 | ||
443 | ret = deflateEnd(&stream); | |
444 | if (ret != Z_OK) | |
445 | die("cannot deflate request; zlib end error %d", ret); | |
446 | ||
447 | size = stream.total_out; | |
448 | ||
449 | headers = curl_slist_append(headers, "Content-Encoding: gzip"); | |
450 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, gzip_body); | |
451 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, size); | |
452 | ||
453 | if (options.verbosity > 1) { | |
454 | fprintf(stderr, "POST %s (gzip %lu to %lu bytes)\n", | |
455 | rpc->service_name, | |
456 | (unsigned long)rpc->len, (unsigned long)size); | |
457 | fflush(stderr); | |
458 | } | |
de1a2fdd SP |
459 | } else { |
460 | /* We know the complete request size in advance, use the | |
461 | * more normal Content-Length approach. | |
462 | */ | |
463 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, rpc->buf); | |
464 | curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDSIZE, rpc->len); | |
465 | if (options.verbosity > 1) { | |
466 | fprintf(stderr, "POST %s (%lu bytes)\n", | |
467 | rpc->service_name, (unsigned long)rpc->len); | |
468 | fflush(stderr); | |
469 | } | |
470 | } | |
471 | ||
472 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers); | |
473 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, rpc_in); | |
474 | curl_easy_setopt(slot->curl, CURLOPT_FILE, rpc); | |
475 | ||
476 | slot->curl_result = curl_easy_perform(slot->curl); | |
477 | finish_active_slot(slot); | |
478 | ||
479 | if (results.curl_result != CURLE_OK) { | |
480 | err |= error("RPC failed; result=%d, HTTP code = %ld", | |
481 | results.curl_result, results.http_code); | |
482 | } | |
483 | ||
484 | curl_slist_free_all(headers); | |
b8538603 | 485 | free(gzip_body); |
de1a2fdd SP |
486 | return err; |
487 | } | |
488 | ||
489 | static int rpc_service(struct rpc_state *rpc, struct discovery *heads) | |
490 | { | |
491 | const char *svc = rpc->service_name; | |
492 | struct strbuf buf = STRBUF_INIT; | |
493 | struct child_process client; | |
494 | int err = 0; | |
495 | ||
de1a2fdd SP |
496 | memset(&client, 0, sizeof(client)); |
497 | client.in = -1; | |
498 | client.out = -1; | |
499 | client.git_cmd = 1; | |
500 | client.argv = rpc->argv; | |
501 | if (start_command(&client)) | |
502 | exit(1); | |
503 | if (heads) | |
504 | write_or_die(client.in, heads->buf, heads->len); | |
505 | ||
506 | rpc->alloc = http_post_buffer; | |
507 | rpc->buf = xmalloc(rpc->alloc); | |
508 | rpc->in = client.in; | |
509 | rpc->out = client.out; | |
510 | strbuf_init(&rpc->result, 0); | |
511 | ||
512 | strbuf_addf(&buf, "%s/%s", url, svc); | |
513 | rpc->service_url = strbuf_detach(&buf, NULL); | |
514 | ||
515 | strbuf_addf(&buf, "Content-Type: application/x-%s-request", svc); | |
516 | rpc->hdr_content_type = strbuf_detach(&buf, NULL); | |
517 | ||
8efa5f62 | 518 | strbuf_addf(&buf, "Accept: application/x-%s-result", svc); |
de1a2fdd SP |
519 | rpc->hdr_accept = strbuf_detach(&buf, NULL); |
520 | ||
521 | while (!err) { | |
522 | int n = packet_read_line(rpc->out, rpc->buf, rpc->alloc); | |
523 | if (!n) | |
524 | break; | |
525 | rpc->pos = 0; | |
526 | rpc->len = n; | |
527 | err |= post_rpc(rpc); | |
528 | } | |
529 | strbuf_read(&rpc->result, client.out, 0); | |
530 | ||
531 | close(client.in); | |
532 | close(client.out); | |
533 | client.in = -1; | |
534 | client.out = -1; | |
535 | ||
536 | err |= finish_command(&client); | |
537 | free(rpc->service_url); | |
538 | free(rpc->hdr_content_type); | |
539 | free(rpc->hdr_accept); | |
540 | free(rpc->buf); | |
541 | strbuf_release(&buf); | |
542 | return err; | |
543 | } | |
544 | ||
292ce46b SP |
545 | static int fetch_dumb(int nr_heads, struct ref **to_fetch) |
546 | { | |
26e1e0b2 | 547 | struct walker *walker; |
292ce46b SP |
548 | char **targets = xmalloc(nr_heads * sizeof(char*)); |
549 | int ret, i; | |
550 | ||
249b2004 SP |
551 | if (options.depth) |
552 | die("dumb http transport does not support --depth"); | |
292ce46b SP |
553 | for (i = 0; i < nr_heads; i++) |
554 | targets[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
555 | ||
26e1e0b2 | 556 | walker = get_http_walker(url); |
292ce46b SP |
557 | walker->get_all = 1; |
558 | walker->get_tree = 1; | |
559 | walker->get_history = 1; | |
ef08ef9e | 560 | walker->get_verbosely = options.verbosity >= 3; |
292ce46b SP |
561 | walker->get_recover = 0; |
562 | ret = walker_fetch(walker, nr_heads, targets, NULL, NULL); | |
26e1e0b2 | 563 | walker_free(walker); |
292ce46b SP |
564 | |
565 | for (i = 0; i < nr_heads; i++) | |
566 | free(targets[i]); | |
567 | free(targets); | |
568 | ||
569 | return ret ? error("Fetch failed.") : 0; | |
570 | } | |
571 | ||
249b2004 SP |
572 | static int fetch_git(struct discovery *heads, |
573 | int nr_heads, struct ref **to_fetch) | |
574 | { | |
575 | struct rpc_state rpc; | |
576 | char *depth_arg = NULL; | |
577 | const char **argv; | |
578 | int argc = 0, i, err; | |
579 | ||
580 | argv = xmalloc((15 + nr_heads) * sizeof(char*)); | |
581 | argv[argc++] = "fetch-pack"; | |
582 | argv[argc++] = "--stateless-rpc"; | |
583 | argv[argc++] = "--lock-pack"; | |
584 | if (options.followtags) | |
585 | argv[argc++] = "--include-tag"; | |
586 | if (options.thin) | |
587 | argv[argc++] = "--thin"; | |
588 | if (options.verbosity >= 3) { | |
589 | argv[argc++] = "-v"; | |
590 | argv[argc++] = "-v"; | |
591 | } | |
592 | if (!options.progress) | |
593 | argv[argc++] = "--no-progress"; | |
594 | if (options.depth) { | |
595 | struct strbuf buf = STRBUF_INIT; | |
596 | strbuf_addf(&buf, "--depth=%lu", options.depth); | |
597 | depth_arg = strbuf_detach(&buf, NULL); | |
598 | argv[argc++] = depth_arg; | |
599 | } | |
600 | argv[argc++] = url; | |
601 | for (i = 0; i < nr_heads; i++) { | |
602 | struct ref *ref = to_fetch[i]; | |
603 | if (!ref->name || !*ref->name) | |
604 | die("cannot fetch by sha1 over smart http"); | |
605 | argv[argc++] = ref->name; | |
606 | } | |
607 | argv[argc++] = NULL; | |
608 | ||
609 | memset(&rpc, 0, sizeof(rpc)); | |
610 | rpc.service_name = "git-upload-pack", | |
611 | rpc.argv = argv; | |
b8538603 | 612 | rpc.gzip_request = 1; |
249b2004 SP |
613 | |
614 | err = rpc_service(&rpc, heads); | |
615 | if (rpc.result.len) | |
616 | safe_write(1, rpc.result.buf, rpc.result.len); | |
617 | strbuf_release(&rpc.result); | |
618 | free(argv); | |
619 | free(depth_arg); | |
620 | return err; | |
621 | } | |
622 | ||
623 | static int fetch(int nr_heads, struct ref **to_fetch) | |
624 | { | |
625 | struct discovery *d = discover_refs("git-upload-pack"); | |
626 | if (d->proto_git) | |
627 | return fetch_git(d, nr_heads, to_fetch); | |
628 | else | |
629 | return fetch_dumb(nr_heads, to_fetch); | |
630 | } | |
631 | ||
292ce46b SP |
632 | static void parse_fetch(struct strbuf *buf) |
633 | { | |
634 | struct ref **to_fetch = NULL; | |
635 | struct ref *list_head = NULL; | |
636 | struct ref **list = &list_head; | |
637 | int alloc_heads = 0, nr_heads = 0; | |
638 | ||
639 | do { | |
640 | if (!prefixcmp(buf->buf, "fetch ")) { | |
641 | char *p = buf->buf + strlen("fetch "); | |
642 | char *name; | |
643 | struct ref *ref; | |
644 | unsigned char old_sha1[20]; | |
645 | ||
646 | if (strlen(p) < 40 || get_sha1_hex(p, old_sha1)) | |
647 | die("protocol error: expected sha/ref, got %s'", p); | |
648 | if (p[40] == ' ') | |
649 | name = p + 41; | |
650 | else if (!p[40]) | |
651 | name = ""; | |
652 | else | |
653 | die("protocol error: expected sha/ref, got %s'", p); | |
654 | ||
655 | ref = alloc_ref(name); | |
656 | hashcpy(ref->old_sha1, old_sha1); | |
657 | ||
658 | *list = ref; | |
659 | list = &ref->next; | |
660 | ||
661 | ALLOC_GROW(to_fetch, nr_heads + 1, alloc_heads); | |
662 | to_fetch[nr_heads++] = ref; | |
663 | } | |
664 | else | |
665 | die("http transport does not support %s", buf->buf); | |
666 | ||
667 | strbuf_reset(buf); | |
668 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
669 | return; | |
670 | if (!*buf->buf) | |
671 | break; | |
672 | } while (1); | |
673 | ||
249b2004 | 674 | if (fetch(nr_heads, to_fetch)) |
292ce46b SP |
675 | exit(128); /* error already reported */ |
676 | free_refs(list_head); | |
677 | free(to_fetch); | |
678 | ||
679 | printf("\n"); | |
680 | fflush(stdout); | |
681 | strbuf_reset(buf); | |
682 | } | |
683 | ||
ae4efe19 SP |
684 | static int push_dav(int nr_spec, char **specs) |
685 | { | |
686 | const char **argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
687 | int argc = 0, i; | |
688 | ||
689 | argv[argc++] = "http-push"; | |
690 | argv[argc++] = "--helper-status"; | |
691 | if (options.dry_run) | |
692 | argv[argc++] = "--dry-run"; | |
693 | if (options.verbosity > 1) | |
694 | argv[argc++] = "--verbose"; | |
695 | argv[argc++] = url; | |
696 | for (i = 0; i < nr_spec; i++) | |
697 | argv[argc++] = specs[i]; | |
698 | argv[argc++] = NULL; | |
699 | ||
700 | if (run_command_v_opt(argv, RUN_GIT_CMD)) | |
701 | die("git-%s failed", argv[0]); | |
702 | free(argv); | |
703 | return 0; | |
704 | } | |
705 | ||
de1a2fdd SP |
706 | static int push_git(struct discovery *heads, int nr_spec, char **specs) |
707 | { | |
708 | struct rpc_state rpc; | |
709 | const char **argv; | |
710 | int argc = 0, i, err; | |
711 | ||
712 | argv = xmalloc((10 + nr_spec) * sizeof(char*)); | |
713 | argv[argc++] = "send-pack"; | |
714 | argv[argc++] = "--stateless-rpc"; | |
715 | argv[argc++] = "--helper-status"; | |
716 | if (options.thin) | |
717 | argv[argc++] = "--thin"; | |
718 | if (options.dry_run) | |
719 | argv[argc++] = "--dry-run"; | |
720 | if (options.verbosity > 1) | |
721 | argv[argc++] = "--verbose"; | |
722 | argv[argc++] = url; | |
723 | for (i = 0; i < nr_spec; i++) | |
724 | argv[argc++] = specs[i]; | |
725 | argv[argc++] = NULL; | |
726 | ||
727 | memset(&rpc, 0, sizeof(rpc)); | |
728 | rpc.service_name = "git-receive-pack", | |
729 | rpc.argv = argv; | |
730 | ||
731 | err = rpc_service(&rpc, heads); | |
732 | if (rpc.result.len) | |
733 | safe_write(1, rpc.result.buf, rpc.result.len); | |
734 | strbuf_release(&rpc.result); | |
735 | free(argv); | |
736 | return err; | |
737 | } | |
738 | ||
739 | static int push(int nr_spec, char **specs) | |
740 | { | |
741 | struct discovery *heads = discover_refs("git-receive-pack"); | |
742 | int ret; | |
743 | ||
744 | if (heads->proto_git) | |
745 | ret = push_git(heads, nr_spec, specs); | |
746 | else | |
747 | ret = push_dav(nr_spec, specs); | |
748 | free_discovery(heads); | |
749 | return ret; | |
750 | } | |
751 | ||
ae4efe19 SP |
752 | static void parse_push(struct strbuf *buf) |
753 | { | |
754 | char **specs = NULL; | |
755 | int alloc_spec = 0, nr_spec = 0, i; | |
756 | ||
757 | do { | |
758 | if (!prefixcmp(buf->buf, "push ")) { | |
759 | ALLOC_GROW(specs, nr_spec + 1, alloc_spec); | |
760 | specs[nr_spec++] = xstrdup(buf->buf + 5); | |
761 | } | |
762 | else | |
763 | die("http transport does not support %s", buf->buf); | |
764 | ||
765 | strbuf_reset(buf); | |
766 | if (strbuf_getline(buf, stdin, '\n') == EOF) | |
767 | return; | |
768 | if (!*buf->buf) | |
769 | break; | |
770 | } while (1); | |
771 | ||
de1a2fdd | 772 | if (push(nr_spec, specs)) |
ae4efe19 SP |
773 | exit(128); /* error already reported */ |
774 | for (i = 0; i < nr_spec; i++) | |
775 | free(specs[i]); | |
776 | free(specs); | |
777 | ||
778 | printf("\n"); | |
779 | fflush(stdout); | |
780 | } | |
781 | ||
a2d725b7 DB |
782 | int main(int argc, const char **argv) |
783 | { | |
a2d725b7 | 784 | struct strbuf buf = STRBUF_INIT; |
a45d3d7e | 785 | int nongit; |
a2d725b7 | 786 | |
c6dfb399 | 787 | git_extract_argv0_path(argv[0]); |
a45d3d7e | 788 | setup_git_directory_gently(&nongit); |
a2d725b7 DB |
789 | if (argc < 2) { |
790 | fprintf(stderr, "Remote needed\n"); | |
791 | return 1; | |
792 | } | |
793 | ||
ef08ef9e SP |
794 | options.verbosity = 1; |
795 | options.progress = !!isatty(2); | |
de1a2fdd | 796 | options.thin = 1; |
ef08ef9e | 797 | |
a2d725b7 DB |
798 | remote = remote_get(argv[1]); |
799 | ||
800 | if (argc > 2) { | |
801 | url = argv[2]; | |
802 | } else { | |
803 | url = remote->url[0]; | |
804 | } | |
805 | ||
888692b7 TRC |
806 | http_init(remote); |
807 | ||
a2d725b7 DB |
808 | do { |
809 | if (strbuf_getline(&buf, stdin, '\n') == EOF) | |
810 | break; | |
811 | if (!prefixcmp(buf.buf, "fetch ")) { | |
a45d3d7e DB |
812 | if (nongit) |
813 | die("Fetch attempted without a local repo"); | |
292ce46b SP |
814 | parse_fetch(&buf); |
815 | ||
ae4efe19 | 816 | } else if (!strcmp(buf.buf, "list") || !prefixcmp(buf.buf, "list ")) { |
97cc7bc4 SP |
817 | int for_push = !!strstr(buf.buf + 4, "for-push"); |
818 | output_refs(get_refs(for_push)); | |
ae4efe19 SP |
819 | |
820 | } else if (!prefixcmp(buf.buf, "push ")) { | |
821 | parse_push(&buf); | |
822 | ||
ef08ef9e SP |
823 | } else if (!prefixcmp(buf.buf, "option ")) { |
824 | char *name = buf.buf + strlen("option "); | |
825 | char *value = strchr(name, ' '); | |
826 | int result; | |
827 | ||
828 | if (value) | |
829 | *value++ = '\0'; | |
830 | else | |
831 | value = "true"; | |
832 | ||
833 | result = set_option(name, value); | |
834 | if (!result) | |
835 | printf("ok\n"); | |
836 | else if (result < 0) | |
837 | printf("error invalid value\n"); | |
838 | else | |
839 | printf("unsupported\n"); | |
a2d725b7 | 840 | fflush(stdout); |
ef08ef9e | 841 | |
a2d725b7 DB |
842 | } else if (!strcmp(buf.buf, "capabilities")) { |
843 | printf("fetch\n"); | |
ef08ef9e | 844 | printf("option\n"); |
ae4efe19 | 845 | printf("push\n"); |
a2d725b7 DB |
846 | printf("\n"); |
847 | fflush(stdout); | |
848 | } else { | |
849 | return 1; | |
850 | } | |
851 | strbuf_reset(&buf); | |
852 | } while (1); | |
888692b7 TRC |
853 | |
854 | http_cleanup(); | |
855 | ||
a2d725b7 DB |
856 | return 0; |
857 | } |