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