]>
Commit | Line | Data |
---|---|---|
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" | |
40cb4fab | 9 | #include "send-pack.h" |
c29727d5 | 10 | #include "walker.h" |
c7a8a162 | 11 | #include "bundle.h" |
cd547b48 JS |
12 | #include "dir.h" |
13 | #include "refs.h" | |
14 | ||
15 | /* rsync support */ | |
16 | ||
17 | /* | |
18 | * We copy packed-refs and refs/ into a temporary file, then read the | |
19 | * loose refs recursively (sorting whenever possible), and then inserting | |
20 | * those packed refs that are not yet in the list (not validating, but | |
21 | * assuming that the file is sorted). | |
22 | * | |
23 | * Appears refactoring this from refs.c is too cumbersome. | |
24 | */ | |
25 | ||
26 | static int str_cmp(const void *a, const void *b) | |
27 | { | |
28 | const char *s1 = a; | |
29 | const char *s2 = b; | |
30 | ||
31 | return strcmp(s1, s2); | |
32 | } | |
33 | ||
34 | /* path->buf + name_offset is expected to point to "refs/" */ | |
35 | ||
36 | static int read_loose_refs(struct strbuf *path, int name_offset, | |
37 | struct ref **tail) | |
38 | { | |
39 | DIR *dir = opendir(path->buf); | |
40 | struct dirent *de; | |
41 | struct { | |
42 | char **entries; | |
43 | int nr, alloc; | |
44 | } list; | |
45 | int i, pathlen; | |
46 | ||
47 | if (!dir) | |
48 | return -1; | |
49 | ||
50 | memset (&list, 0, sizeof(list)); | |
51 | ||
52 | while ((de = readdir(dir))) { | |
8ca12c0d | 53 | if (is_dot_or_dotdot(de->d_name)) |
cd547b48 JS |
54 | continue; |
55 | ALLOC_GROW(list.entries, list.nr + 1, list.alloc); | |
56 | list.entries[list.nr++] = xstrdup(de->d_name); | |
57 | } | |
58 | closedir(dir); | |
59 | ||
60 | /* sort the list */ | |
61 | ||
62 | qsort(list.entries, list.nr, sizeof(char *), str_cmp); | |
63 | ||
64 | pathlen = path->len; | |
65 | strbuf_addch(path, '/'); | |
66 | ||
67 | for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) { | |
68 | strbuf_addstr(path, list.entries[i]); | |
69 | if (read_loose_refs(path, name_offset, tail)) { | |
70 | int fd = open(path->buf, O_RDONLY); | |
71 | char buffer[40]; | |
72 | struct ref *next; | |
73 | ||
74 | if (fd < 0) | |
75 | continue; | |
59c69c0c | 76 | next = alloc_ref(path->buf + name_offset); |
cd547b48 JS |
77 | if (read_in_full(fd, buffer, 40) != 40 || |
78 | get_sha1_hex(buffer, next->old_sha1)) { | |
79 | close(fd); | |
80 | free(next); | |
81 | continue; | |
82 | } | |
83 | close(fd); | |
cd547b48 JS |
84 | (*tail)->next = next; |
85 | *tail = next; | |
86 | } | |
87 | } | |
88 | strbuf_setlen(path, pathlen); | |
89 | ||
90 | for (i = 0; i < list.nr; i++) | |
91 | free(list.entries[i]); | |
92 | free(list.entries); | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | /* insert the packed refs for which no loose refs were found */ | |
98 | ||
99 | static void insert_packed_refs(const char *packed_refs, struct ref **list) | |
100 | { | |
101 | FILE *f = fopen(packed_refs, "r"); | |
102 | static char buffer[PATH_MAX]; | |
103 | ||
104 | if (!f) | |
105 | return; | |
106 | ||
107 | for (;;) { | |
47ec7943 | 108 | int cmp = cmp, len; |
cd547b48 JS |
109 | |
110 | if (!fgets(buffer, sizeof(buffer), f)) { | |
111 | fclose(f); | |
112 | return; | |
113 | } | |
114 | ||
115 | if (hexval(buffer[0]) > 0xf) | |
116 | continue; | |
117 | len = strlen(buffer); | |
872c930d | 118 | if (len && buffer[len - 1] == '\n') |
cd547b48 JS |
119 | buffer[--len] = '\0'; |
120 | if (len < 41) | |
121 | continue; | |
122 | while ((*list)->next && | |
123 | (cmp = strcmp(buffer + 41, | |
124 | (*list)->next->name)) > 0) | |
125 | list = &(*list)->next; | |
126 | if (!(*list)->next || cmp < 0) { | |
59c69c0c | 127 | struct ref *next = alloc_ref(buffer + 41); |
cd547b48 JS |
128 | buffer[40] = '\0'; |
129 | if (get_sha1_hex(buffer, next->old_sha1)) { | |
130 | warning ("invalid SHA-1: %s", buffer); | |
131 | free(next); | |
132 | continue; | |
133 | } | |
cd547b48 JS |
134 | next->next = (*list)->next; |
135 | (*list)->next = next; | |
136 | list = &(*list)->next; | |
137 | } | |
138 | } | |
139 | } | |
140 | ||
4577370e | 141 | static struct ref *get_refs_via_rsync(struct transport *transport) |
cd547b48 JS |
142 | { |
143 | struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT; | |
144 | struct ref dummy, *tail = &dummy; | |
145 | struct child_process rsync; | |
146 | const char *args[5]; | |
147 | int temp_dir_len; | |
148 | ||
149 | /* copy the refs to the temporary directory */ | |
150 | ||
151 | strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX")); | |
152 | if (!mkdtemp(temp_dir.buf)) | |
153 | die ("Could not make temporary directory"); | |
154 | temp_dir_len = temp_dir.len; | |
155 | ||
156 | strbuf_addstr(&buf, transport->url); | |
157 | strbuf_addstr(&buf, "/refs"); | |
158 | ||
159 | memset(&rsync, 0, sizeof(rsync)); | |
160 | rsync.argv = args; | |
161 | rsync.stdout_to_stderr = 1; | |
162 | args[0] = "rsync"; | |
2b5a06ed | 163 | args[1] = (transport->verbose > 0) ? "-rv" : "-r"; |
cd547b48 JS |
164 | args[2] = buf.buf; |
165 | args[3] = temp_dir.buf; | |
166 | args[4] = NULL; | |
167 | ||
168 | if (run_command(&rsync)) | |
169 | die ("Could not run rsync to get refs"); | |
170 | ||
171 | strbuf_reset(&buf); | |
172 | strbuf_addstr(&buf, transport->url); | |
173 | strbuf_addstr(&buf, "/packed-refs"); | |
174 | ||
175 | args[2] = buf.buf; | |
176 | ||
177 | if (run_command(&rsync)) | |
178 | die ("Could not run rsync to get refs"); | |
179 | ||
180 | /* read the copied refs */ | |
181 | ||
182 | strbuf_addstr(&temp_dir, "/refs"); | |
183 | read_loose_refs(&temp_dir, temp_dir_len + 1, &tail); | |
184 | strbuf_setlen(&temp_dir, temp_dir_len); | |
185 | ||
186 | tail = &dummy; | |
187 | strbuf_addstr(&temp_dir, "/packed-refs"); | |
188 | insert_packed_refs(temp_dir.buf, &tail); | |
189 | strbuf_setlen(&temp_dir, temp_dir_len); | |
190 | ||
191 | if (remove_dir_recursively(&temp_dir, 0)) | |
192 | warning ("Error removing temporary directory %s.", | |
193 | temp_dir.buf); | |
194 | ||
195 | strbuf_release(&buf); | |
196 | strbuf_release(&temp_dir); | |
197 | ||
198 | return dummy.next; | |
199 | } | |
200 | ||
201 | static int fetch_objs_via_rsync(struct transport *transport, | |
2d5c298f | 202 | int nr_objs, const struct ref **to_fetch) |
cd547b48 JS |
203 | { |
204 | struct strbuf buf = STRBUF_INIT; | |
205 | struct child_process rsync; | |
206 | const char *args[8]; | |
207 | int result; | |
208 | ||
209 | strbuf_addstr(&buf, transport->url); | |
210 | strbuf_addstr(&buf, "/objects/"); | |
211 | ||
212 | memset(&rsync, 0, sizeof(rsync)); | |
213 | rsync.argv = args; | |
214 | rsync.stdout_to_stderr = 1; | |
215 | args[0] = "rsync"; | |
2b5a06ed | 216 | args[1] = (transport->verbose > 0) ? "-rv" : "-r"; |
cd547b48 JS |
217 | args[2] = "--ignore-existing"; |
218 | args[3] = "--exclude"; | |
219 | args[4] = "info"; | |
220 | args[5] = buf.buf; | |
221 | args[6] = get_object_directory(); | |
222 | args[7] = NULL; | |
223 | ||
224 | /* NEEDSWORK: handle one level of alternates */ | |
225 | result = run_command(&rsync); | |
226 | ||
227 | strbuf_release(&buf); | |
228 | ||
229 | return result; | |
230 | } | |
231 | ||
232 | static int write_one_ref(const char *name, const unsigned char *sha1, | |
233 | int flags, void *data) | |
234 | { | |
235 | struct strbuf *buf = data; | |
236 | int len = buf->len; | |
237 | FILE *f; | |
238 | ||
239 | /* when called via for_each_ref(), flags is non-zero */ | |
240 | if (flags && prefixcmp(name, "refs/heads/") && | |
241 | prefixcmp(name, "refs/tags/")) | |
242 | return 0; | |
243 | ||
244 | strbuf_addstr(buf, name); | |
245 | if (safe_create_leading_directories(buf->buf) || | |
246 | !(f = fopen(buf->buf, "w")) || | |
247 | fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 || | |
248 | fclose(f)) | |
249 | return error("problems writing temporary file %s", buf->buf); | |
250 | strbuf_setlen(buf, len); | |
251 | return 0; | |
252 | } | |
253 | ||
254 | static int write_refs_to_temp_dir(struct strbuf *temp_dir, | |
255 | int refspec_nr, const char **refspec) | |
256 | { | |
257 | int i; | |
258 | ||
259 | for (i = 0; i < refspec_nr; i++) { | |
260 | unsigned char sha1[20]; | |
261 | char *ref; | |
262 | ||
263 | if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1) | |
264 | return error("Could not get ref %s", refspec[i]); | |
265 | ||
266 | if (write_one_ref(ref, sha1, 0, temp_dir)) { | |
267 | free(ref); | |
268 | return -1; | |
269 | } | |
270 | free(ref); | |
271 | } | |
272 | return 0; | |
273 | } | |
274 | ||
275 | static int rsync_transport_push(struct transport *transport, | |
276 | int refspec_nr, const char **refspec, int flags) | |
277 | { | |
278 | struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT; | |
279 | int result = 0, i; | |
280 | struct child_process rsync; | |
ee020f35 | 281 | const char *args[10]; |
cd547b48 | 282 | |
94c89ba6 AW |
283 | if (flags & TRANSPORT_PUSH_MIRROR) |
284 | return error("rsync transport does not support mirror mode"); | |
285 | ||
cd547b48 JS |
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 | ||
b9c506f7 | 347 | #ifndef NO_CURL /* http fetch is the only user */ |
1788c39c | 348 | static int fetch_objs_via_walker(struct transport *transport, |
2d5c298f | 349 | int nr_objs, const struct ref **to_fetch) |
c29727d5 DB |
350 | { |
351 | char *dest = xstrdup(transport->url); | |
352 | struct walker *walker = transport->data; | |
425b1393 SP |
353 | char **objs = xmalloc(nr_objs * sizeof(*objs)); |
354 | int i; | |
c29727d5 DB |
355 | |
356 | walker->get_all = 1; | |
357 | walker->get_tree = 1; | |
358 | walker->get_history = 1; | |
2b5a06ed | 359 | walker->get_verbosely = transport->verbose >= 0; |
c29727d5 DB |
360 | walker->get_recover = 0; |
361 | ||
425b1393 SP |
362 | for (i = 0; i < nr_objs; i++) |
363 | objs[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1)); | |
364 | ||
b6abb48a | 365 | if (walker_fetch(walker, nr_objs, objs, NULL, NULL)) |
c29727d5 DB |
366 | die("Fetch failed."); |
367 | ||
425b1393 SP |
368 | for (i = 0; i < nr_objs; i++) |
369 | free(objs[i]); | |
370 | free(objs); | |
c29727d5 DB |
371 | free(dest); |
372 | return 0; | |
373 | } | |
b9c506f7 | 374 | #endif /* NO_CURL */ |
c29727d5 DB |
375 | |
376 | static int disconnect_walker(struct transport *transport) | |
377 | { | |
378 | struct walker *walker = transport->data; | |
379 | if (walker) | |
380 | walker_free(walker); | |
381 | return 0; | |
382 | } | |
9b288516 | 383 | |
ccfc02a3 | 384 | #ifndef NO_CURL |
f3fa1838 JH |
385 | static int curl_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags) |
386 | { | |
9b288516 DB |
387 | const char **argv; |
388 | int argc; | |
389 | int err; | |
390 | ||
94c89ba6 AW |
391 | if (flags & TRANSPORT_PUSH_MIRROR) |
392 | return error("http transport does not support mirror mode"); | |
393 | ||
1b2486d7 | 394 | argv = xmalloc((refspec_nr + 12) * sizeof(char *)); |
9b288516 DB |
395 | argv[0] = "http-push"; |
396 | argc = 1; | |
397 | if (flags & TRANSPORT_PUSH_ALL) | |
398 | argv[argc++] = "--all"; | |
399 | if (flags & TRANSPORT_PUSH_FORCE) | |
400 | argv[argc++] = "--force"; | |
fe5d1d3e SP |
401 | if (flags & TRANSPORT_PUSH_DRY_RUN) |
402 | argv[argc++] = "--dry-run"; | |
1b2486d7 SP |
403 | if (flags & TRANSPORT_PUSH_VERBOSE) |
404 | argv[argc++] = "--verbose"; | |
9b288516 DB |
405 | argv[argc++] = transport->url; |
406 | while (refspec_nr--) | |
407 | argv[argc++] = *refspec++; | |
408 | argv[argc] = NULL; | |
409 | err = run_command_v_opt(argv, RUN_GIT_CMD); | |
410 | switch (err) { | |
411 | case -ERR_RUN_COMMAND_FORK: | |
412 | error("unable to fork for %s", argv[0]); | |
413 | case -ERR_RUN_COMMAND_EXEC: | |
414 | error("unable to exec %s", argv[0]); | |
415 | break; | |
416 | case -ERR_RUN_COMMAND_WAITPID: | |
417 | case -ERR_RUN_COMMAND_WAITPID_WRONG_PID: | |
418 | case -ERR_RUN_COMMAND_WAITPID_SIGNAL: | |
419 | case -ERR_RUN_COMMAND_WAITPID_NOEXIT: | |
420 | error("%s died with strange error", argv[0]); | |
421 | } | |
422 | return !!err; | |
423 | } | |
424 | ||
4577370e | 425 | static struct ref *get_refs_via_curl(struct transport *transport) |
c29727d5 | 426 | { |
028c2976 | 427 | struct strbuf buffer = STRBUF_INIT; |
c29727d5 DB |
428 | char *data, *start, *mid; |
429 | char *ref_name; | |
430 | char *refs_url; | |
431 | int i = 0; | |
432 | ||
433 | struct active_request_slot *slot; | |
434 | struct slot_results results; | |
435 | ||
436 | struct ref *refs = NULL; | |
437 | struct ref *ref = NULL; | |
438 | struct ref *last_ref = NULL; | |
439 | ||
be885d96 DB |
440 | struct walker *walker; |
441 | ||
9fd9279b | 442 | if (!transport->data) |
9fc6440d MH |
443 | transport->data = get_http_walker(transport->url, |
444 | transport->remote); | |
9fd9279b | 445 | |
be885d96 DB |
446 | walker = transport->data; |
447 | ||
c29727d5 DB |
448 | refs_url = xmalloc(strlen(transport->url) + 11); |
449 | sprintf(refs_url, "%s/info/refs", transport->url); | |
450 | ||
c29727d5 DB |
451 | slot = get_active_slot(); |
452 | slot->results = &results; | |
453 | curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer); | |
454 | curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer); | |
455 | curl_easy_setopt(slot->curl, CURLOPT_URL, refs_url); | |
456 | curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL); | |
14c98218 | 457 | |
c29727d5 DB |
458 | if (start_active_slot(slot)) { |
459 | run_active_slot(slot); | |
460 | if (results.curl_result != CURLE_OK) { | |
028c2976 | 461 | strbuf_release(&buffer); |
fd35e426 PB |
462 | if (missing_target(&results)) |
463 | die("%s not found: did you run git update-server-info on the server?", refs_url); | |
464 | else | |
465 | die("%s download error - %s", refs_url, curl_errorstr); | |
c29727d5 DB |
466 | } |
467 | } else { | |
028c2976 | 468 | strbuf_release(&buffer); |
fd35e426 | 469 | die("Unable to start HTTP request"); |
c29727d5 DB |
470 | } |
471 | ||
028c2976 | 472 | data = buffer.buf; |
c29727d5 DB |
473 | start = NULL; |
474 | mid = data; | |
028c2976 | 475 | while (i < buffer.len) { |
c29727d5 DB |
476 | if (!start) |
477 | start = &data[i]; | |
478 | if (data[i] == '\t') | |
479 | mid = &data[i]; | |
480 | if (data[i] == '\n') { | |
481 | data[i] = 0; | |
482 | ref_name = mid + 1; | |
483 | ref = xmalloc(sizeof(struct ref) + | |
484 | strlen(ref_name) + 1); | |
485 | memset(ref, 0, sizeof(struct ref)); | |
486 | strcpy(ref->name, ref_name); | |
487 | get_sha1_hex(start, ref->old_sha1); | |
488 | if (!refs) | |
489 | refs = ref; | |
490 | if (last_ref) | |
491 | last_ref->next = ref; | |
492 | last_ref = ref; | |
493 | start = NULL; | |
494 | } | |
495 | i++; | |
496 | } | |
497 | ||
028c2976 | 498 | strbuf_release(&buffer); |
c29727d5 | 499 | |
59c69c0c | 500 | ref = alloc_ref("HEAD"); |
be885d96 DB |
501 | if (!walker->fetch_ref(walker, ref) && |
502 | !resolve_remote_symref(ref, refs)) { | |
503 | ref->next = refs; | |
504 | refs = ref; | |
505 | } else { | |
506 | free(ref); | |
507 | } | |
508 | ||
c29727d5 DB |
509 | return refs; |
510 | } | |
511 | ||
e5f4e214 | 512 | static int fetch_objs_via_curl(struct transport *transport, |
2d5c298f | 513 | int nr_objs, const struct ref **to_fetch) |
e5f4e214 SP |
514 | { |
515 | if (!transport->data) | |
9fc6440d MH |
516 | transport->data = get_http_walker(transport->url, |
517 | transport->remote); | |
e5f4e214 SP |
518 | return fetch_objs_via_walker(transport, nr_objs, to_fetch); |
519 | } | |
520 | ||
c29727d5 DB |
521 | #endif |
522 | ||
c7a8a162 JS |
523 | struct bundle_transport_data { |
524 | int fd; | |
525 | struct bundle_header header; | |
526 | }; | |
527 | ||
4577370e | 528 | static struct ref *get_refs_from_bundle(struct transport *transport) |
c7a8a162 JS |
529 | { |
530 | struct bundle_transport_data *data = transport->data; | |
531 | struct ref *result = NULL; | |
532 | int i; | |
533 | ||
534 | if (data->fd > 0) | |
535 | close(data->fd); | |
536 | data->fd = read_bundle_header(transport->url, &data->header); | |
537 | if (data->fd < 0) | |
538 | die ("Could not read bundle '%s'.", transport->url); | |
539 | for (i = 0; i < data->header.references.nr; i++) { | |
540 | struct ref_list_entry *e = data->header.references.list + i; | |
59c69c0c | 541 | struct ref *ref = alloc_ref(e->name); |
c7a8a162 | 542 | hashcpy(ref->old_sha1, e->sha1); |
c7a8a162 JS |
543 | ref->next = result; |
544 | result = ref; | |
545 | } | |
546 | return result; | |
547 | } | |
548 | ||
1788c39c | 549 | static int fetch_refs_from_bundle(struct transport *transport, |
2d5c298f | 550 | int nr_heads, const struct ref **to_fetch) |
c7a8a162 JS |
551 | { |
552 | struct bundle_transport_data *data = transport->data; | |
553 | return unbundle(&data->header, data->fd); | |
554 | } | |
555 | ||
556 | static int close_bundle(struct transport *transport) | |
557 | { | |
558 | struct bundle_transport_data *data = transport->data; | |
559 | if (data->fd > 0) | |
560 | close(data->fd); | |
f4e95765 | 561 | free(data); |
c7a8a162 JS |
562 | return 0; |
563 | } | |
564 | ||
9b288516 DB |
565 | struct git_transport_data { |
566 | unsigned thin : 1; | |
c29727d5 | 567 | unsigned keep : 1; |
41fa7d2e | 568 | unsigned followtags : 1; |
c29727d5 | 569 | int depth; |
ba227857 DB |
570 | struct child_process *conn; |
571 | int fd[2]; | |
c29727d5 | 572 | const char *uploadpack; |
9b288516 DB |
573 | const char *receivepack; |
574 | }; | |
575 | ||
576 | static int set_git_option(struct transport *connection, | |
577 | const char *name, const char *value) | |
578 | { | |
579 | struct git_transport_data *data = connection->data; | |
c29727d5 DB |
580 | if (!strcmp(name, TRANS_OPT_UPLOADPACK)) { |
581 | data->uploadpack = value; | |
582 | return 0; | |
583 | } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) { | |
9b288516 DB |
584 | data->receivepack = value; |
585 | return 0; | |
586 | } else if (!strcmp(name, TRANS_OPT_THIN)) { | |
587 | data->thin = !!value; | |
588 | return 0; | |
41fa7d2e SP |
589 | } else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) { |
590 | data->followtags = !!value; | |
591 | return 0; | |
c29727d5 DB |
592 | } else if (!strcmp(name, TRANS_OPT_KEEP)) { |
593 | data->keep = !!value; | |
594 | return 0; | |
c29727d5 DB |
595 | } else if (!strcmp(name, TRANS_OPT_DEPTH)) { |
596 | if (!value) | |
597 | data->depth = 0; | |
598 | else | |
599 | data->depth = atoi(value); | |
600 | return 0; | |
9b288516 DB |
601 | } |
602 | return 1; | |
603 | } | |
604 | ||
ba227857 DB |
605 | static int connect_setup(struct transport *transport) |
606 | { | |
607 | struct git_transport_data *data = transport->data; | |
608 | data->conn = git_connect(data->fd, transport->url, data->uploadpack, 0); | |
609 | return 0; | |
610 | } | |
611 | ||
4577370e | 612 | static struct ref *get_refs_via_connect(struct transport *transport) |
c29727d5 DB |
613 | { |
614 | struct git_transport_data *data = transport->data; | |
615 | struct ref *refs; | |
c29727d5 | 616 | |
ba227857 | 617 | connect_setup(transport); |
40c155ff | 618 | get_remote_heads(data->fd[0], &refs, 0, NULL, 0, NULL); |
c29727d5 DB |
619 | |
620 | return refs; | |
621 | } | |
622 | ||
1788c39c | 623 | static int fetch_refs_via_pack(struct transport *transport, |
2d5c298f | 624 | int nr_heads, const struct ref **to_fetch) |
c29727d5 DB |
625 | { |
626 | struct git_transport_data *data = transport->data; | |
425b1393 | 627 | char **heads = xmalloc(nr_heads * sizeof(*heads)); |
e4cd6c7a | 628 | char **origh = xmalloc(nr_heads * sizeof(*origh)); |
ba227857 | 629 | const struct ref *refs; |
c29727d5 DB |
630 | char *dest = xstrdup(transport->url); |
631 | struct fetch_pack_args args; | |
425b1393 | 632 | int i; |
00183cbb | 633 | struct ref *refs_tmp = NULL; |
c29727d5 | 634 | |
fa740529 | 635 | memset(&args, 0, sizeof(args)); |
c29727d5 | 636 | args.uploadpack = data->uploadpack; |
c29727d5 | 637 | args.keep_pack = data->keep; |
fa740529 | 638 | args.lock_pack = 1; |
c29727d5 | 639 | args.use_thin_pack = data->thin; |
41fa7d2e | 640 | args.include_tag = data->followtags; |
9b373229 | 641 | args.verbose = (transport->verbose > 0); |
fe8aa148 | 642 | args.quiet = (transport->verbose < 0); |
21188b1e | 643 | args.no_progress = args.quiet || (!transport->progress && !isatty(1)); |
c29727d5 | 644 | args.depth = data->depth; |
c29727d5 | 645 | |
425b1393 | 646 | for (i = 0; i < nr_heads; i++) |
e4cd6c7a | 647 | origh[i] = heads[i] = xstrdup(to_fetch[i]->name); |
ba227857 | 648 | |
ba227857 | 649 | if (!data->conn) { |
ba227857 | 650 | connect_setup(transport); |
40c155ff | 651 | get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0, NULL); |
ba227857 DB |
652 | } |
653 | ||
00183cbb DB |
654 | refs = fetch_pack(&args, data->fd, data->conn, |
655 | refs_tmp ? refs_tmp : transport->remote_refs, | |
ba227857 DB |
656 | dest, nr_heads, heads, &transport->pack_lockfile); |
657 | close(data->fd[0]); | |
658 | close(data->fd[1]); | |
659 | if (finish_connect(data->conn)) | |
660 | refs = NULL; | |
661 | data->conn = NULL; | |
c29727d5 | 662 | |
00183cbb DB |
663 | free_refs(refs_tmp); |
664 | ||
425b1393 | 665 | for (i = 0; i < nr_heads; i++) |
e4cd6c7a SP |
666 | free(origh[i]); |
667 | free(origh); | |
668 | free(heads); | |
c29727d5 | 669 | free(dest); |
c6bc4005 | 670 | return (refs ? 0 : -1); |
c29727d5 DB |
671 | } |
672 | ||
f3fa1838 JH |
673 | static int git_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags) |
674 | { | |
9b288516 | 675 | struct git_transport_data *data = transport->data; |
40cb4fab | 676 | struct send_pack_args args; |
9b288516 | 677 | |
40cb4fab DB |
678 | args.receivepack = data->receivepack; |
679 | args.send_all = !!(flags & TRANSPORT_PUSH_ALL); | |
94c89ba6 | 680 | args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR); |
40cb4fab DB |
681 | args.force_update = !!(flags & TRANSPORT_PUSH_FORCE); |
682 | args.use_thin_pack = data->thin; | |
a108e538 | 683 | args.verbose = !!(flags & TRANSPORT_PUSH_VERBOSE); |
40cb4fab DB |
684 | args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN); |
685 | ||
686 | return send_pack(&args, transport->url, transport->remote, refspec_nr, refspec); | |
9b288516 DB |
687 | } |
688 | ||
f4e95765 SP |
689 | static int disconnect_git(struct transport *transport) |
690 | { | |
ba227857 DB |
691 | struct git_transport_data *data = transport->data; |
692 | if (data->conn) { | |
693 | packet_flush(data->fd[1]); | |
694 | close(data->fd[0]); | |
695 | close(data->fd[1]); | |
696 | finish_connect(data->conn); | |
697 | } | |
698 | ||
699 | free(data); | |
f4e95765 SP |
700 | return 0; |
701 | } | |
702 | ||
9b288516 DB |
703 | static int is_local(const char *url) |
704 | { | |
705 | const char *colon = strchr(url, ':'); | |
706 | const char *slash = strchr(url, '/'); | |
be501813 JS |
707 | return !colon || (slash && slash < colon) || |
708 | has_dos_drive_prefix(url); | |
9b288516 DB |
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; |
ba227857 | 760 | data->conn = NULL; |
c29727d5 DB |
761 | data->uploadpack = "git-upload-pack"; |
762 | if (remote && remote->uploadpack) | |
763 | data->uploadpack = remote->uploadpack; | |
9b288516 DB |
764 | data->receivepack = "git-receive-pack"; |
765 | if (remote && remote->receivepack) | |
766 | data->receivepack = remote->receivepack; | |
9b288516 | 767 | } |
8eb554ae | 768 | |
9b288516 DB |
769 | return ret; |
770 | } | |
771 | ||
772 | int transport_set_option(struct transport *transport, | |
773 | const char *name, const char *value) | |
774 | { | |
824d5776 SP |
775 | if (transport->set_option) |
776 | return transport->set_option(transport, name, value); | |
ab865e6e | 777 | return 1; |
9b288516 DB |
778 | } |
779 | ||
780 | int transport_push(struct transport *transport, | |
781 | int refspec_nr, const char **refspec, int flags) | |
782 | { | |
824d5776 | 783 | if (!transport->push) |
9b288516 | 784 | return 1; |
824d5776 | 785 | return transport->push(transport, refspec_nr, refspec, flags); |
9b288516 DB |
786 | } |
787 | ||
4577370e | 788 | const struct ref *transport_get_remote_refs(struct transport *transport) |
c29727d5 DB |
789 | { |
790 | if (!transport->remote_refs) | |
824d5776 | 791 | transport->remote_refs = transport->get_refs_list(transport); |
c29727d5 DB |
792 | return transport->remote_refs; |
793 | } | |
794 | ||
2d5c298f | 795 | int transport_fetch_refs(struct transport *transport, const struct ref *refs) |
c29727d5 | 796 | { |
425b1393 | 797 | int rc; |
7a2bff45 | 798 | int nr_heads = 0, nr_alloc = 0; |
2d5c298f DB |
799 | const struct ref **heads = NULL; |
800 | const struct ref *rm; | |
c29727d5 DB |
801 | |
802 | for (rm = refs; rm; rm = rm->next) { | |
803 | if (rm->peer_ref && | |
804 | !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1)) | |
805 | continue; | |
7a2bff45 | 806 | ALLOC_GROW(heads, nr_heads + 1, nr_alloc); |
425b1393 | 807 | heads[nr_heads++] = rm; |
c29727d5 DB |
808 | } |
809 | ||
824d5776 | 810 | rc = transport->fetch(transport, nr_heads, heads); |
c29727d5 | 811 | free(heads); |
425b1393 | 812 | return rc; |
c29727d5 DB |
813 | } |
814 | ||
1788c39c SP |
815 | void transport_unlock_pack(struct transport *transport) |
816 | { | |
817 | if (transport->pack_lockfile) { | |
818 | unlink(transport->pack_lockfile); | |
819 | free(transport->pack_lockfile); | |
820 | transport->pack_lockfile = NULL; | |
821 | } | |
822 | } | |
823 | ||
9b288516 DB |
824 | int transport_disconnect(struct transport *transport) |
825 | { | |
826 | int ret = 0; | |
824d5776 SP |
827 | if (transport->disconnect) |
828 | ret = transport->disconnect(transport); | |
9b288516 DB |
829 | free(transport); |
830 | return ret; | |
831 | } |