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Commit | Line | Data |
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9b288516 DB |
1 | #include "cache.h" |
2 | #include "transport.h" | |
3 | #include "run-command.h" | |
ccfc02a3 | 4 | #ifndef NO_CURL |
c29727d5 | 5 | #include "http.h" |
ccfc02a3 | 6 | #endif |
c29727d5 DB |
7 | #include "pkt-line.h" |
8 | #include "fetch-pack.h" | |
9 | #include "walker.h" | |
c7a8a162 | 10 | #include "bundle.h" |
cd547b48 JS |
11 | #include "dir.h" |
12 | #include "refs.h" | |
13 | ||
14 | /* rsync support */ | |
15 | ||
16 | /* | |
17 | * We copy packed-refs and refs/ into a temporary file, then read the | |
18 | * loose refs recursively (sorting whenever possible), and then inserting | |
19 | * those packed refs that are not yet in the list (not validating, but | |
20 | * assuming that the file is sorted). | |
21 | * | |
22 | * Appears refactoring this from refs.c is too cumbersome. | |
23 | */ | |
24 | ||
25 | static int str_cmp(const void *a, const void *b) | |
26 | { | |
27 | const char *s1 = a; | |
28 | const char *s2 = b; | |
29 | ||
30 | return strcmp(s1, s2); | |
31 | } | |
32 | ||
33 | /* path->buf + name_offset is expected to point to "refs/" */ | |
34 | ||
35 | static int read_loose_refs(struct strbuf *path, int name_offset, | |
36 | struct ref **tail) | |
37 | { | |
38 | DIR *dir = opendir(path->buf); | |
39 | struct dirent *de; | |
40 | struct { | |
41 | char **entries; | |
42 | int nr, alloc; | |
43 | } list; | |
44 | int i, pathlen; | |
45 | ||
46 | if (!dir) | |
47 | return -1; | |
48 | ||
49 | memset (&list, 0, sizeof(list)); | |
50 | ||
51 | while ((de = readdir(dir))) { | |
52 | if (de->d_name[0] == '.' && (de->d_name[1] == '\0' || | |
53 | (de->d_name[1] == '.' && | |
54 | de->d_name[2] == '\0'))) | |
55 | continue; | |
56 | ALLOC_GROW(list.entries, list.nr + 1, list.alloc); | |
57 | list.entries[list.nr++] = xstrdup(de->d_name); | |
58 | } | |
59 | closedir(dir); | |
60 | ||
61 | /* sort the list */ | |
62 | ||
63 | qsort(list.entries, list.nr, sizeof(char *), str_cmp); | |
64 | ||
65 | pathlen = path->len; | |
66 | strbuf_addch(path, '/'); | |
67 | ||
68 | for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) { | |
69 | strbuf_addstr(path, list.entries[i]); | |
70 | if (read_loose_refs(path, name_offset, tail)) { | |
71 | int fd = open(path->buf, O_RDONLY); | |
72 | char buffer[40]; | |
73 | struct ref *next; | |
74 | ||
75 | if (fd < 0) | |
76 | continue; | |
77 | next = alloc_ref(path->len - name_offset + 1); | |
78 | if (read_in_full(fd, buffer, 40) != 40 || | |
79 | get_sha1_hex(buffer, next->old_sha1)) { | |
80 | close(fd); | |
81 | free(next); | |
82 | continue; | |
83 | } | |
84 | close(fd); | |
85 | strcpy(next->name, path->buf + name_offset); | |
86 | (*tail)->next = next; | |
87 | *tail = next; | |
88 | } | |
89 | } | |
90 | strbuf_setlen(path, pathlen); | |
91 | ||
92 | for (i = 0; i < list.nr; i++) | |
93 | free(list.entries[i]); | |
94 | free(list.entries); | |
95 | ||
96 | return 0; | |
97 | } | |
98 | ||
99 | /* insert the packed refs for which no loose refs were found */ | |
100 | ||
101 | static void insert_packed_refs(const char *packed_refs, struct ref **list) | |
102 | { | |
103 | FILE *f = fopen(packed_refs, "r"); | |
104 | static char buffer[PATH_MAX]; | |
105 | ||
106 | if (!f) | |
107 | return; | |
108 | ||
109 | for (;;) { | |
110 | int cmp, len; | |
111 | ||
112 | if (!fgets(buffer, sizeof(buffer), f)) { | |
113 | fclose(f); | |
114 | return; | |
115 | } | |
116 | ||
117 | if (hexval(buffer[0]) > 0xf) | |
118 | continue; | |
119 | len = strlen(buffer); | |
120 | if (buffer[len - 1] == '\n') | |
121 | buffer[--len] = '\0'; | |
122 | if (len < 41) | |
123 | continue; | |
124 | while ((*list)->next && | |
125 | (cmp = strcmp(buffer + 41, | |
126 | (*list)->next->name)) > 0) | |
127 | list = &(*list)->next; | |
128 | if (!(*list)->next || cmp < 0) { | |
129 | struct ref *next = alloc_ref(len - 40); | |
130 | buffer[40] = '\0'; | |
131 | if (get_sha1_hex(buffer, next->old_sha1)) { | |
132 | warning ("invalid SHA-1: %s", buffer); | |
133 | free(next); | |
134 | continue; | |
135 | } | |
136 | strcpy(next->name, buffer + 41); | |
137 | next->next = (*list)->next; | |
138 | (*list)->next = next; | |
139 | list = &(*list)->next; | |
140 | } | |
141 | } | |
142 | } | |
143 | ||
144 | static struct ref *get_refs_via_rsync(const struct transport *transport) | |
145 | { | |
146 | struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT; | |
147 | struct ref dummy, *tail = &dummy; | |
148 | struct child_process rsync; | |
149 | const char *args[5]; | |
150 | int temp_dir_len; | |
151 | ||
152 | /* copy the refs to the temporary directory */ | |
153 | ||
154 | strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX")); | |
155 | if (!mkdtemp(temp_dir.buf)) | |
156 | die ("Could not make temporary directory"); | |
157 | temp_dir_len = temp_dir.len; | |
158 | ||
159 | strbuf_addstr(&buf, transport->url); | |
160 | strbuf_addstr(&buf, "/refs"); | |
161 | ||
162 | memset(&rsync, 0, sizeof(rsync)); | |
163 | rsync.argv = args; | |
164 | rsync.stdout_to_stderr = 1; | |
165 | args[0] = "rsync"; | |
2b5a06ed | 166 | args[1] = (transport->verbose > 0) ? "-rv" : "-r"; |
cd547b48 JS |
167 | args[2] = buf.buf; |
168 | args[3] = temp_dir.buf; | |
169 | args[4] = NULL; | |
170 | ||
171 | if (run_command(&rsync)) | |
172 | die ("Could not run rsync to get refs"); | |
173 | ||
174 | strbuf_reset(&buf); | |
175 | strbuf_addstr(&buf, transport->url); | |
176 | strbuf_addstr(&buf, "/packed-refs"); | |
177 | ||
178 | args[2] = buf.buf; | |
179 | ||
180 | if (run_command(&rsync)) | |
181 | die ("Could not run rsync to get refs"); | |
182 | ||
183 | /* read the copied refs */ | |
184 | ||
185 | strbuf_addstr(&temp_dir, "/refs"); | |
186 | read_loose_refs(&temp_dir, temp_dir_len + 1, &tail); | |
187 | strbuf_setlen(&temp_dir, temp_dir_len); | |
188 | ||
189 | tail = &dummy; | |
190 | strbuf_addstr(&temp_dir, "/packed-refs"); | |
191 | insert_packed_refs(temp_dir.buf, &tail); | |
192 | strbuf_setlen(&temp_dir, temp_dir_len); | |
193 | ||
194 | if (remove_dir_recursively(&temp_dir, 0)) | |
195 | warning ("Error removing temporary directory %s.", | |
196 | temp_dir.buf); | |
197 | ||
198 | strbuf_release(&buf); | |
199 | strbuf_release(&temp_dir); | |
200 | ||
201 | return dummy.next; | |
202 | } | |
203 | ||
204 | static int fetch_objs_via_rsync(struct transport *transport, | |
205 | int nr_objs, struct ref **to_fetch) | |
206 | { | |
207 | struct strbuf buf = STRBUF_INIT; | |
208 | struct child_process rsync; | |
209 | const char *args[8]; | |
210 | int result; | |
211 | ||
212 | strbuf_addstr(&buf, transport->url); | |
213 | strbuf_addstr(&buf, "/objects/"); | |
214 | ||
215 | memset(&rsync, 0, sizeof(rsync)); | |
216 | rsync.argv = args; | |
217 | rsync.stdout_to_stderr = 1; | |
218 | args[0] = "rsync"; | |
2b5a06ed | 219 | args[1] = (transport->verbose > 0) ? "-rv" : "-r"; |
cd547b48 JS |
220 | args[2] = "--ignore-existing"; |
221 | args[3] = "--exclude"; | |
222 | args[4] = "info"; | |
223 | args[5] = buf.buf; | |
224 | args[6] = get_object_directory(); | |
225 | args[7] = NULL; | |
226 | ||
227 | /* NEEDSWORK: handle one level of alternates */ | |
228 | result = run_command(&rsync); | |
229 | ||
230 | strbuf_release(&buf); | |
231 | ||
232 | return result; | |
233 | } | |
234 | ||
235 | static int write_one_ref(const char *name, const unsigned char *sha1, | |
236 | int flags, void *data) | |
237 | { | |
238 | struct strbuf *buf = data; | |
239 | int len = buf->len; | |
240 | FILE *f; | |
241 | ||
242 | /* when called via for_each_ref(), flags is non-zero */ | |
243 | if (flags && prefixcmp(name, "refs/heads/") && | |
244 | prefixcmp(name, "refs/tags/")) | |
245 | return 0; | |
246 | ||
247 | strbuf_addstr(buf, name); | |
248 | if (safe_create_leading_directories(buf->buf) || | |
249 | !(f = fopen(buf->buf, "w")) || | |
250 | fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 || | |
251 | fclose(f)) | |
252 | return error("problems writing temporary file %s", buf->buf); | |
253 | strbuf_setlen(buf, len); | |
254 | return 0; | |
255 | } | |
256 | ||
257 | static int write_refs_to_temp_dir(struct strbuf *temp_dir, | |
258 | int refspec_nr, const char **refspec) | |
259 | { | |
260 | int i; | |
261 | ||
262 | for (i = 0; i < refspec_nr; i++) { | |
263 | unsigned char sha1[20]; | |
264 | char *ref; | |
265 | ||
266 | if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1) | |
267 | return error("Could not get ref %s", refspec[i]); | |
268 | ||
269 | if (write_one_ref(ref, sha1, 0, temp_dir)) { | |
270 | free(ref); | |
271 | return -1; | |
272 | } | |
273 | free(ref); | |
274 | } | |
275 | return 0; | |
276 | } | |
277 | ||
278 | static int rsync_transport_push(struct transport *transport, | |
279 | int refspec_nr, const char **refspec, int flags) | |
280 | { | |
281 | struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT; | |
282 | int result = 0, i; | |
283 | struct child_process rsync; | |
ee020f35 | 284 | const char *args[10]; |
cd547b48 JS |
285 | |
286 | /* first push the objects */ | |
287 | ||
288 | strbuf_addstr(&buf, transport->url); | |
289 | strbuf_addch(&buf, '/'); | |
290 | ||
291 | memset(&rsync, 0, sizeof(rsync)); | |
292 | rsync.argv = args; | |
293 | rsync.stdout_to_stderr = 1; | |
ee020f35 SP |
294 | i = 0; |
295 | args[i++] = "rsync"; | |
296 | args[i++] = "-a"; | |
297 | if (flags & TRANSPORT_PUSH_DRY_RUN) | |
298 | args[i++] = "--dry-run"; | |
299 | if (transport->verbose > 0) | |
300 | args[i++] = "-v"; | |
301 | args[i++] = "--ignore-existing"; | |
302 | args[i++] = "--exclude"; | |
303 | args[i++] = "info"; | |
304 | args[i++] = get_object_directory(); | |
305 | args[i++] = buf.buf; | |
306 | args[i++] = NULL; | |
cd547b48 JS |
307 | |
308 | if (run_command(&rsync)) | |
309 | return error("Could not push objects to %s", transport->url); | |
310 | ||
311 | /* copy the refs to the temporary directory; they could be packed. */ | |
312 | ||
313 | strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX")); | |
314 | if (!mkdtemp(temp_dir.buf)) | |
315 | die ("Could not make temporary directory"); | |
316 | strbuf_addch(&temp_dir, '/'); | |
317 | ||
318 | if (flags & TRANSPORT_PUSH_ALL) { | |
319 | if (for_each_ref(write_one_ref, &temp_dir)) | |
320 | return -1; | |
321 | } else if (write_refs_to_temp_dir(&temp_dir, refspec_nr, refspec)) | |
322 | return -1; | |
323 | ||
ee020f35 SP |
324 | i = 2; |
325 | if (flags & TRANSPORT_PUSH_DRY_RUN) | |
326 | args[i++] = "--dry-run"; | |
327 | if (!(flags & TRANSPORT_PUSH_FORCE)) | |
328 | args[i++] = "--ignore-existing"; | |
cd547b48 JS |
329 | args[i++] = temp_dir.buf; |
330 | args[i++] = transport->url; | |
331 | args[i++] = NULL; | |
332 | if (run_command(&rsync)) | |
333 | result = error("Could not push to %s", transport->url); | |
334 | ||
335 | if (remove_dir_recursively(&temp_dir, 0)) | |
336 | warning ("Could not remove temporary directory %s.", | |
337 | temp_dir.buf); | |
338 | ||
339 | strbuf_release(&buf); | |
340 | strbuf_release(&temp_dir); | |
341 | ||
342 | return result; | |
343 | } | |
c29727d5 DB |
344 | |
345 | /* Generic functions for using commit walkers */ | |
346 | ||
1788c39c | 347 | static int fetch_objs_via_walker(struct transport *transport, |
425b1393 | 348 | int nr_objs, struct ref **to_fetch) |
c29727d5 DB |
349 | { |
350 | char *dest = xstrdup(transport->url); | |
351 | struct walker *walker = transport->data; | |
425b1393 SP |
352 | char **objs = xmalloc(nr_objs * sizeof(*objs)); |
353 | int i; | |
c29727d5 DB |
354 | |
355 | walker->get_all = 1; | |
356 | walker->get_tree = 1; | |
357 | walker->get_history = 1; | |
2b5a06ed | 358 | walker->get_verbosely = transport->verbose >= 0; |
c29727d5 DB |
359 | walker->get_recover = 0; |
360 | ||
425b1393 SP |
361 | for (i = 0; i < nr_objs; i++) |
362 | objs[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
363 | ||
b6abb48a | 364 | if (walker_fetch(walker, nr_objs, objs, NULL, NULL)) |
c29727d5 DB |
365 | die("Fetch failed."); |
366 | ||
425b1393 SP |
367 | for (i = 0; i < nr_objs; i++) |
368 | free(objs[i]); | |
369 | free(objs); | |
c29727d5 DB |
370 | free(dest); |
371 | return 0; | |
372 | } | |
373 | ||
374 | static int disconnect_walker(struct transport *transport) | |
375 | { | |
376 | struct walker *walker = transport->data; | |
377 | if (walker) | |
378 | walker_free(walker); | |
379 | return 0; | |
380 | } | |
9b288516 | 381 | |
ccfc02a3 | 382 | #ifndef NO_CURL |
9b288516 DB |
383 | static int curl_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags) { |
384 | const char **argv; | |
385 | int argc; | |
386 | int err; | |
387 | ||
388 | argv = xmalloc((refspec_nr + 11) * sizeof(char *)); | |
389 | argv[0] = "http-push"; | |
390 | argc = 1; | |
391 | if (flags & TRANSPORT_PUSH_ALL) | |
392 | argv[argc++] = "--all"; | |
393 | if (flags & TRANSPORT_PUSH_FORCE) | |
394 | argv[argc++] = "--force"; | |
395 | argv[argc++] = transport->url; | |
396 | while (refspec_nr--) | |
397 | argv[argc++] = *refspec++; | |
398 | argv[argc] = NULL; | |
399 | err = run_command_v_opt(argv, RUN_GIT_CMD); | |
400 | switch (err) { | |
401 | case -ERR_RUN_COMMAND_FORK: | |
402 | error("unable to fork for %s", argv[0]); | |
403 | case -ERR_RUN_COMMAND_EXEC: | |
404 | error("unable to exec %s", argv[0]); | |
405 | break; | |
406 | case -ERR_RUN_COMMAND_WAITPID: | |
407 | case -ERR_RUN_COMMAND_WAITPID_WRONG_PID: | |
408 | case -ERR_RUN_COMMAND_WAITPID_SIGNAL: | |
409 | case -ERR_RUN_COMMAND_WAITPID_NOEXIT: | |
410 | error("%s died with strange error", argv[0]); | |
411 | } | |
412 | return !!err; | |
413 | } | |
414 | ||
c29727d5 DB |
415 | static int missing__target(int code, int result) |
416 | { | |
417 | return /* file:// URL -- do we ever use one??? */ | |
418 | (result == CURLE_FILE_COULDNT_READ_FILE) || | |
419 | /* http:// and https:// URL */ | |
420 | (code == 404 && result == CURLE_HTTP_RETURNED_ERROR) || | |
421 | /* ftp:// URL */ | |
422 | (code == 550 && result == CURLE_FTP_COULDNT_RETR_FILE) | |
423 | ; | |
424 | } | |
425 | ||
426 | #define missing_target(a) missing__target((a)->http_code, (a)->curl_result) | |
427 | ||
428 | static struct ref *get_refs_via_curl(const struct transport *transport) | |
429 | { | |
430 | struct buffer buffer; | |
431 | char *data, *start, *mid; | |
432 | char *ref_name; | |
433 | char *refs_url; | |
434 | int i = 0; | |
435 | ||
436 | struct active_request_slot *slot; | |
437 | struct slot_results results; | |
438 | ||
439 | struct ref *refs = NULL; | |
440 | struct ref *ref = NULL; | |
441 | struct ref *last_ref = NULL; | |
442 | ||
443 | data = xmalloc(4096); | |
444 | buffer.size = 4096; | |
445 | buffer.posn = 0; | |
446 | buffer.buffer = data; | |
447 | ||
448 | refs_url = xmalloc(strlen(transport->url) + 11); | |
449 | sprintf(refs_url, "%s/info/refs", transport->url); | |
450 | ||
451 | http_init(); | |
452 | ||
453 | slot = get_active_slot(); | |
454 | slot->results = &results; | |
455 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
456 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
457 | curl_easy_setopt(slot->curl, CURLOPT_URL, refs_url); | |
458 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL); | |
459 | if (start_active_slot(slot)) { | |
460 | run_active_slot(slot); | |
461 | if (results.curl_result != CURLE_OK) { | |
462 | if (missing_target(&results)) { | |
463 | free(buffer.buffer); | |
464 | return NULL; | |
465 | } else { | |
466 | free(buffer.buffer); | |
467 | error("%s", curl_errorstr); | |
468 | return NULL; | |
469 | } | |
470 | } | |
471 | } else { | |
472 | free(buffer.buffer); | |
473 | error("Unable to start request"); | |
474 | return NULL; | |
475 | } | |
476 | ||
477 | http_cleanup(); | |
478 | ||
479 | data = buffer.buffer; | |
480 | start = NULL; | |
481 | mid = data; | |
482 | while (i < buffer.posn) { | |
483 | if (!start) | |
484 | start = &data[i]; | |
485 | if (data[i] == '\t') | |
486 | mid = &data[i]; | |
487 | if (data[i] == '\n') { | |
488 | data[i] = 0; | |
489 | ref_name = mid + 1; | |
490 | ref = xmalloc(sizeof(struct ref) + | |
491 | strlen(ref_name) + 1); | |
492 | memset(ref, 0, sizeof(struct ref)); | |
493 | strcpy(ref->name, ref_name); | |
494 | get_sha1_hex(start, ref->old_sha1); | |
495 | if (!refs) | |
496 | refs = ref; | |
497 | if (last_ref) | |
498 | last_ref->next = ref; | |
499 | last_ref = ref; | |
500 | start = NULL; | |
501 | } | |
502 | i++; | |
503 | } | |
504 | ||
505 | free(buffer.buffer); | |
506 | ||
507 | return refs; | |
508 | } | |
509 | ||
e5f4e214 SP |
510 | static int fetch_objs_via_curl(struct transport *transport, |
511 | int nr_objs, struct ref **to_fetch) | |
512 | { | |
513 | if (!transport->data) | |
514 | transport->data = get_http_walker(transport->url); | |
515 | return fetch_objs_via_walker(transport, nr_objs, to_fetch); | |
516 | } | |
517 | ||
c29727d5 DB |
518 | #endif |
519 | ||
c7a8a162 JS |
520 | struct bundle_transport_data { |
521 | int fd; | |
522 | struct bundle_header header; | |
523 | }; | |
524 | ||
525 | static struct ref *get_refs_from_bundle(const struct transport *transport) | |
526 | { | |
527 | struct bundle_transport_data *data = transport->data; | |
528 | struct ref *result = NULL; | |
529 | int i; | |
530 | ||
531 | if (data->fd > 0) | |
532 | close(data->fd); | |
533 | data->fd = read_bundle_header(transport->url, &data->header); | |
534 | if (data->fd < 0) | |
535 | die ("Could not read bundle '%s'.", transport->url); | |
536 | for (i = 0; i < data->header.references.nr; i++) { | |
537 | struct ref_list_entry *e = data->header.references.list + i; | |
90446a00 | 538 | struct ref *ref = alloc_ref(strlen(e->name) + 1); |
c7a8a162 JS |
539 | hashcpy(ref->old_sha1, e->sha1); |
540 | strcpy(ref->name, e->name); | |
541 | ref->next = result; | |
542 | result = ref; | |
543 | } | |
544 | return result; | |
545 | } | |
546 | ||
1788c39c | 547 | static int fetch_refs_from_bundle(struct transport *transport, |
425b1393 | 548 | int nr_heads, struct ref **to_fetch) |
c7a8a162 JS |
549 | { |
550 | struct bundle_transport_data *data = transport->data; | |
551 | return unbundle(&data->header, data->fd); | |
552 | } | |
553 | ||
554 | static int close_bundle(struct transport *transport) | |
555 | { | |
556 | struct bundle_transport_data *data = transport->data; | |
557 | if (data->fd > 0) | |
558 | close(data->fd); | |
f4e95765 | 559 | free(data); |
c7a8a162 JS |
560 | return 0; |
561 | } | |
562 | ||
9b288516 DB |
563 | struct git_transport_data { |
564 | unsigned thin : 1; | |
c29727d5 | 565 | unsigned keep : 1; |
c29727d5 | 566 | int depth; |
c29727d5 | 567 | const char *uploadpack; |
9b288516 DB |
568 | const char *receivepack; |
569 | }; | |
570 | ||
571 | static int set_git_option(struct transport *connection, | |
572 | const char *name, const char *value) | |
573 | { | |
574 | struct git_transport_data *data = connection->data; | |
c29727d5 DB |
575 | if (!strcmp(name, TRANS_OPT_UPLOADPACK)) { |
576 | data->uploadpack = value; | |
577 | return 0; | |
578 | } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) { | |
9b288516 DB |
579 | data->receivepack = value; |
580 | return 0; | |
581 | } else if (!strcmp(name, TRANS_OPT_THIN)) { | |
582 | data->thin = !!value; | |
583 | return 0; | |
c29727d5 DB |
584 | } else if (!strcmp(name, TRANS_OPT_KEEP)) { |
585 | data->keep = !!value; | |
586 | return 0; | |
c29727d5 DB |
587 | } else if (!strcmp(name, TRANS_OPT_DEPTH)) { |
588 | if (!value) | |
589 | data->depth = 0; | |
590 | else | |
591 | data->depth = atoi(value); | |
592 | return 0; | |
9b288516 DB |
593 | } |
594 | return 1; | |
595 | } | |
596 | ||
c29727d5 DB |
597 | static struct ref *get_refs_via_connect(const struct transport *transport) |
598 | { | |
599 | struct git_transport_data *data = transport->data; | |
600 | struct ref *refs; | |
601 | int fd[2]; | |
602 | pid_t pid; | |
603 | char *dest = xstrdup(transport->url); | |
604 | ||
605 | pid = git_connect(fd, dest, data->uploadpack, 0); | |
606 | ||
607 | if (pid < 0) | |
608 | die("Failed to connect to \"%s\"", transport->url); | |
609 | ||
610 | get_remote_heads(fd[0], &refs, 0, NULL, 0); | |
611 | packet_flush(fd[1]); | |
612 | ||
613 | finish_connect(pid); | |
614 | ||
615 | free(dest); | |
616 | ||
617 | return refs; | |
618 | } | |
619 | ||
1788c39c | 620 | static int fetch_refs_via_pack(struct transport *transport, |
425b1393 | 621 | int nr_heads, struct ref **to_fetch) |
c29727d5 DB |
622 | { |
623 | struct git_transport_data *data = transport->data; | |
425b1393 | 624 | char **heads = xmalloc(nr_heads * sizeof(*heads)); |
e4cd6c7a | 625 | char **origh = xmalloc(nr_heads * sizeof(*origh)); |
c29727d5 DB |
626 | struct ref *refs; |
627 | char *dest = xstrdup(transport->url); | |
628 | struct fetch_pack_args args; | |
425b1393 | 629 | int i; |
c29727d5 | 630 | |
fa740529 | 631 | memset(&args, 0, sizeof(args)); |
c29727d5 | 632 | args.uploadpack = data->uploadpack; |
c29727d5 | 633 | args.keep_pack = data->keep; |
fa740529 | 634 | args.lock_pack = 1; |
c29727d5 | 635 | args.use_thin_pack = data->thin; |
2b5a06ed | 636 | args.verbose = transport->verbose > 0; |
c29727d5 | 637 | args.depth = data->depth; |
c29727d5 | 638 | |
425b1393 | 639 | for (i = 0; i < nr_heads; i++) |
e4cd6c7a | 640 | origh[i] = heads[i] = xstrdup(to_fetch[i]->name); |
fa740529 | 641 | refs = fetch_pack(&args, dest, nr_heads, heads, &transport->pack_lockfile); |
c29727d5 | 642 | |
425b1393 | 643 | for (i = 0; i < nr_heads; i++) |
e4cd6c7a SP |
644 | free(origh[i]); |
645 | free(origh); | |
646 | free(heads); | |
c29727d5 | 647 | free_refs(refs); |
c29727d5 DB |
648 | free(dest); |
649 | return 0; | |
650 | } | |
651 | ||
9b288516 DB |
652 | static int git_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags) { |
653 | struct git_transport_data *data = transport->data; | |
654 | const char **argv; | |
655 | char *rem; | |
656 | int argc; | |
657 | int err; | |
658 | ||
659 | argv = xmalloc((refspec_nr + 11) * sizeof(char *)); | |
660 | argv[0] = "send-pack"; | |
661 | argc = 1; | |
662 | if (flags & TRANSPORT_PUSH_ALL) | |
663 | argv[argc++] = "--all"; | |
664 | if (flags & TRANSPORT_PUSH_FORCE) | |
665 | argv[argc++] = "--force"; | |
2e13e5d8 SP |
666 | if (flags & TRANSPORT_PUSH_DRY_RUN) |
667 | argv[argc++] = "--dry-run"; | |
9b288516 DB |
668 | if (data->receivepack) { |
669 | char *rp = xmalloc(strlen(data->receivepack) + 16); | |
670 | sprintf(rp, "--receive-pack=%s", data->receivepack); | |
671 | argv[argc++] = rp; | |
672 | } | |
673 | if (data->thin) | |
674 | argv[argc++] = "--thin"; | |
675 | rem = xmalloc(strlen(transport->remote->name) + 10); | |
676 | sprintf(rem, "--remote=%s", transport->remote->name); | |
677 | argv[argc++] = rem; | |
678 | argv[argc++] = transport->url; | |
679 | while (refspec_nr--) | |
680 | argv[argc++] = *refspec++; | |
681 | argv[argc] = NULL; | |
682 | err = run_command_v_opt(argv, RUN_GIT_CMD); | |
683 | switch (err) { | |
684 | case -ERR_RUN_COMMAND_FORK: | |
685 | error("unable to fork for %s", argv[0]); | |
686 | case -ERR_RUN_COMMAND_EXEC: | |
687 | error("unable to exec %s", argv[0]); | |
688 | break; | |
689 | case -ERR_RUN_COMMAND_WAITPID: | |
690 | case -ERR_RUN_COMMAND_WAITPID_WRONG_PID: | |
691 | case -ERR_RUN_COMMAND_WAITPID_SIGNAL: | |
692 | case -ERR_RUN_COMMAND_WAITPID_NOEXIT: | |
693 | error("%s died with strange error", argv[0]); | |
694 | } | |
695 | return !!err; | |
696 | } | |
697 | ||
f4e95765 SP |
698 | static int disconnect_git(struct transport *transport) |
699 | { | |
700 | free(transport->data); | |
701 | return 0; | |
702 | } | |
703 | ||
9b288516 DB |
704 | static int is_local(const char *url) |
705 | { | |
706 | const char *colon = strchr(url, ':'); | |
707 | const char *slash = strchr(url, '/'); | |
708 | return !colon || (slash && slash < colon); | |
709 | } | |
710 | ||
711 | static int is_file(const char *url) | |
712 | { | |
713 | struct stat buf; | |
714 | if (stat(url, &buf)) | |
715 | return 0; | |
716 | return S_ISREG(buf.st_mode); | |
717 | } | |
718 | ||
e5f4e214 | 719 | struct transport *transport_get(struct remote *remote, const char *url) |
9b288516 | 720 | { |
8eb554ae SP |
721 | struct transport *ret = xcalloc(1, sizeof(*ret)); |
722 | ||
723 | ret->remote = remote; | |
724 | ret->url = url; | |
8eb554ae | 725 | |
9b288516 | 726 | if (!prefixcmp(url, "rsync://")) { |
cd547b48 JS |
727 | ret->get_refs_list = get_refs_via_rsync; |
728 | ret->fetch = fetch_objs_via_rsync; | |
729 | ret->push = rsync_transport_push; | |
824d5776 | 730 | |
8eb554ae SP |
731 | } else if (!prefixcmp(url, "http://") |
732 | || !prefixcmp(url, "https://") | |
733 | || !prefixcmp(url, "ftp://")) { | |
ccfc02a3 JS |
734 | #ifdef NO_CURL |
735 | error("git was compiled without libcurl support."); | |
736 | #else | |
824d5776 SP |
737 | ret->get_refs_list = get_refs_via_curl; |
738 | ret->fetch = fetch_objs_via_curl; | |
739 | ret->push = curl_transport_push; | |
ccfc02a3 | 740 | #endif |
824d5776 SP |
741 | ret->disconnect = disconnect_walker; |
742 | ||
9b288516 | 743 | } else if (is_local(url) && is_file(url)) { |
c7a8a162 | 744 | struct bundle_transport_data *data = xcalloc(1, sizeof(*data)); |
c7a8a162 | 745 | ret->data = data; |
824d5776 SP |
746 | ret->get_refs_list = get_refs_from_bundle; |
747 | ret->fetch = fetch_refs_from_bundle; | |
748 | ret->disconnect = close_bundle; | |
749 | ||
9b288516 DB |
750 | } else { |
751 | struct git_transport_data *data = xcalloc(1, sizeof(*data)); | |
9b288516 | 752 | ret->data = data; |
824d5776 SP |
753 | ret->set_option = set_git_option; |
754 | ret->get_refs_list = get_refs_via_connect; | |
755 | ret->fetch = fetch_refs_via_pack; | |
756 | ret->push = git_transport_push; | |
f4e95765 | 757 | ret->disconnect = disconnect_git; |
824d5776 | 758 | |
9b288516 | 759 | data->thin = 1; |
c29727d5 DB |
760 | data->uploadpack = "git-upload-pack"; |
761 | if (remote && remote->uploadpack) | |
762 | data->uploadpack = remote->uploadpack; | |
9b288516 DB |
763 | data->receivepack = "git-receive-pack"; |
764 | if (remote && remote->receivepack) | |
765 | data->receivepack = remote->receivepack; | |
9b288516 | 766 | } |
8eb554ae | 767 | |
9b288516 DB |
768 | return ret; |
769 | } | |
770 | ||
771 | int transport_set_option(struct transport *transport, | |
772 | const char *name, const char *value) | |
773 | { | |
824d5776 SP |
774 | if (transport->set_option) |
775 | return transport->set_option(transport, name, value); | |
ab865e6e | 776 | return 1; |
9b288516 DB |
777 | } |
778 | ||
779 | int transport_push(struct transport *transport, | |
780 | int refspec_nr, const char **refspec, int flags) | |
781 | { | |
824d5776 | 782 | if (!transport->push) |
9b288516 | 783 | return 1; |
824d5776 | 784 | return transport->push(transport, refspec_nr, refspec, flags); |
9b288516 DB |
785 | } |
786 | ||
c29727d5 DB |
787 | struct ref *transport_get_remote_refs(struct transport *transport) |
788 | { | |
789 | if (!transport->remote_refs) | |
824d5776 | 790 | transport->remote_refs = transport->get_refs_list(transport); |
c29727d5 DB |
791 | return transport->remote_refs; |
792 | } | |
793 | ||
c29727d5 DB |
794 | int transport_fetch_refs(struct transport *transport, struct ref *refs) |
795 | { | |
425b1393 | 796 | int rc; |
7a2bff45 | 797 | int nr_heads = 0, nr_alloc = 0; |
425b1393 | 798 | struct ref **heads = NULL; |
c29727d5 | 799 | struct ref *rm; |
c29727d5 DB |
800 | |
801 | for (rm = refs; rm; rm = rm->next) { | |
802 | if (rm->peer_ref && | |
803 | !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1)) | |
804 | continue; | |
7a2bff45 | 805 | ALLOC_GROW(heads, nr_heads + 1, nr_alloc); |
425b1393 | 806 | heads[nr_heads++] = rm; |
c29727d5 DB |
807 | } |
808 | ||
824d5776 | 809 | rc = transport->fetch(transport, nr_heads, heads); |
c29727d5 | 810 | free(heads); |
425b1393 | 811 | return rc; |
c29727d5 DB |
812 | } |
813 | ||
1788c39c SP |
814 | void transport_unlock_pack(struct transport *transport) |
815 | { | |
816 | if (transport->pack_lockfile) { | |
817 | unlink(transport->pack_lockfile); | |
818 | free(transport->pack_lockfile); | |
819 | transport->pack_lockfile = NULL; | |
820 | } | |
821 | } | |
822 | ||
9b288516 DB |
823 | int transport_disconnect(struct transport *transport) |
824 | { | |
825 | int ret = 0; | |
824d5776 SP |
826 | if (transport->disconnect) |
827 | ret = transport->disconnect(transport); | |
9b288516 DB |
828 | free(transport); |
829 | return ret; | |
830 | } |