Line Flow Count Block(s) Source
1 - /*
2 - * Copyright (C) the libgit2 contributors. All rights reserved.
3 - *
4 - * This file is part of libgit2, distributed under the GNU GPL v2 with
5 - * a Linking Exception. For full terms see the included COPYING file.
6 - */
7 -
8 - #include "push.h"
9 -
10 - #include "git2.h"
11 -
12 - #include "pack.h"
13 - #include "pack-objects.h"
14 - #include "remote.h"
15 - #include "vector.h"
16 - #include "tree.h"
17 -
18 ##### 2 static int push_spec_rref_cmp(const void *a, const void *b)
19 - {
20 ##### 2 const push_spec *push_spec_a = a, *push_spec_b = b;
21 -
22 ##### 2 return strcmp(push_spec_a->refspec.dst, push_spec_b->refspec.dst);
23 - }
24 -
25 ##### 2 static int push_status_ref_cmp(const void *a, const void *b)
26 - {
27 ##### 2 const push_status *push_status_a = a, *push_status_b = b;
28 -
29 ##### 2 return strcmp(push_status_a->ref, push_status_b->ref);
30 - }
31 -
32 9 2 int git_push_new(git_push **out, git_remote *remote)
33 - {
34 - git_push *p;
35 -
36 9 2 *out = NULL;
37 -
38 9 2 p = git__calloc(1, sizeof(*p));
39 9 3,4 GIT_ERROR_CHECK_ALLOC(p);
40 -
41 9 5 p->repo = remote->repo;
42 9 5 p->remote = remote;
43 9 5 p->report_status = 1;
44 9 5 p->pb_parallelism = 1;
45 -
46 9 5,6 if (git_vector_init(&p->specs, 0, push_spec_rref_cmp) < 0) {
47 ##### 7 git__free(p);
48 ##### 8 return -1;
49 - }
50 -
51 9 9,10 if (git_vector_init(&p->status, 0, push_status_ref_cmp) < 0) {
52 ##### 11 git_vector_free(&p->specs);
53 ##### 12 git__free(p);
54 ##### 13 return -1;
55 - }
56 -
57 9 14,15 if (git_vector_init(&p->updates, 0, NULL) < 0) {
58 ##### 16 git_vector_free(&p->status);
59 ##### 17 git_vector_free(&p->specs);
60 ##### 18 git__free(p);
61 ##### 19 return -1;
62 - }
63 -
64 9 20 *out = p;
65 9 20 return 0;
66 - }
67 -
68 2 2 int git_push_set_options(git_push *push, const git_push_options *opts)
69 - {
70 2 2,3 if (!push || !opts)
71 ##### 4 return -1;
72 -
73 2 5-7 GIT_ERROR_CHECK_VERSION(opts, GIT_PUSH_OPTIONS_VERSION, "git_push_options");
74 -
75 2 8 push->pb_parallelism = opts->pb_parallelism;
76 2 8 push->connection.custom_headers = &opts->custom_headers;
77 2 8 push->connection.proxy = &opts->proxy_opts;
78 -
79 2 8 return 0;
80 - }
81 -
82 9 2 static void free_refspec(push_spec *spec)
83 - {
84 9 2 if (spec == NULL)
85 9 3,6 return;
86 -
87 9 4 git_refspec__dispose(&spec->refspec);
88 9 5 git__free(spec);
89 - }
90 -
91 9 2 static int check_rref(char *ref)
92 - {
93 9 2,3 if (git__prefixcmp(ref, "refs/")) {
94 ##### 4 git_error_set(GIT_ERROR_INVALID, "not a valid reference '%s'", ref);
95 ##### 5 return -1;
96 - }
97 -
98 9 6 return 0;
99 - }
100 -
101 7 2 static int check_lref(git_push *push, char *ref)
102 - {
103 - /* lref must be resolvable to an existing object */
104 - git_object *obj;
105 7 2 int error = git_revparse_single(&obj, push->repo, ref);
106 7 3 git_object_free(obj);
107 -
108 7 4 if (!error)
109 7 5 return 0;
110 -
111 ##### 6 if (error == GIT_ENOTFOUND)
112 ##### 7 git_error_set(GIT_ERROR_REFERENCE,
113 - "src refspec '%s' does not match any existing object", ref);
114 - else
115 ##### 8 git_error_set(GIT_ERROR_INVALID, "not a valid reference '%s'", ref);
116 ##### 9 return -1;
117 - }
118 -
119 9 2 static int parse_refspec(git_push *push, push_spec **spec, const char *str)
120 - {
121 - push_spec *s;
122 -
123 9 2 *spec = NULL;
124 -
125 9 2 s = git__calloc(1, sizeof(*s));
126 9 3,4 GIT_ERROR_CHECK_ALLOC(s);
127 -
128 9 5,6 if (git_refspec__parse(&s->refspec, str, false) < 0) {
129 ##### 7 git_error_set(GIT_ERROR_INVALID, "invalid refspec %s", str);
130 ##### 17 goto on_error;
131 - }
132 -
133 9 8,9,11 if (s->refspec.src && s->refspec.src[0] != '\0' &&
134 7 10 check_lref(push, s->refspec.src) < 0) {
135 ##### 12 goto on_error;
136 - }
137 -
138 9 13,14 if (check_rref(s->refspec.dst) < 0)
139 ##### 15 goto on_error;
140 -
141 9 16 *spec = s;
142 9 16 return 0;
143 -
144 - on_error:
145 ##### 18 free_refspec(s);
146 ##### 19 return -1;
147 - }
148 -
149 9 2 int git_push_add_refspec(git_push *push, const char *refspec)
150 - {
151 - push_spec *spec;
152 -
153 9 2,3,5 if (parse_refspec(push, &spec, refspec) < 0 ||
154 9 4 git_vector_insert(&push->specs, spec) < 0)
155 ##### 6 return -1;
156 -
157 9 7 return 0;
158 - }
159 -
160 5 2 int git_push_update_tips(git_push *push, const git_remote_callbacks *callbacks)
161 - {
162 5 2 git_buf remote_ref_name = GIT_BUF_INIT;
163 - size_t i, j;
164 - git_refspec *fetch_spec;
165 5 2 push_spec *push_spec = NULL;
166 - git_reference *remote_ref;
167 - push_status *status;
168 5 2 int error = 0;
169 -
170 10 2,42-44 git_vector_foreach(&push->status, i, status) {
171 5 3 int fire_callback = 1;
172 -
173 - /* Skip unsuccessful updates which have non-empty messages */
174 5 3 if (status->msg)
175 ##### 4 continue;
176 -
177 - /* Find the corresponding remote ref */
178 5 5 fetch_spec = git_remote__matching_refspec(push->remote, status->ref);
179 5 6 if (!fetch_spec)
180 ##### 7 continue;
181 -
182 - /* Clear the buffer which can be dirty from previous iteration */
183 5 8 git_buf_clear(&remote_ref_name);
184 -
185 5 9,10 if ((error = git_refspec_transform(&remote_ref_name, fetch_spec, status->ref)) < 0)
186 ##### 11 goto on_error;
187 -
188 - /* Find matching push ref spec */
189 5 12,15-17 git_vector_foreach(&push->specs, j, push_spec) {
190 5 13 if (!strcmp(push_spec->refspec.dst, status->ref))
191 5 14 break;
192 - }
193 -
194 - /* Could not find the corresponding push ref spec for this push update */
195 5 18 if (j == push->specs.length)
196 ##### 19 continue;
197 -
198 - /* Update the remote ref */
199 5 20,21 if (git_oid_is_zero(&push_spec->loid)) {
200 2 22,23 error = git_reference_lookup(&remote_ref, push->remote->repo, git_buf_cstr(&remote_ref_name));
201 -
202 2 24 if (error >= 0) {
203 1 25 error = git_reference_delete(remote_ref);
204 2 26,27 git_reference_free(remote_ref);
205 - }
206 - } else {
207 3 28,29 error = git_reference_create(NULL, push->remote->repo,
208 3 28 git_buf_cstr(&remote_ref_name), &push_spec->loid, 1,
209 - "update by push");
210 - }
211 -
212 5 30 if (error < 0) {
213 1 31 if (error != GIT_ENOTFOUND)
214 ##### 32 goto on_error;
215 -
216 1 33 git_error_clear();
217 1 34 fire_callback = 0;
218 - }
219 -
220 5 35-37 if (fire_callback && callbacks && callbacks->update_tips) {
221 ##### 38,38,39 error = callbacks->update_tips(git_buf_cstr(&remote_ref_name),
222 ##### 38 &push_spec->roid, &push_spec->loid, callbacks->payload);
223 -
224 ##### 40 if (error < 0)
225 ##### 41 goto on_error;
226 - }
227 - }
228 -
229 5 45 error = 0;
230 -
231 - on_error:
232 5 46 git_buf_dispose(&remote_ref_name);
233 5 47 return error;
234 - }
235 -
236 - /**
237 - * Insert all tags until we find a non-tag object, which is returned
238 - * in `out`.
239 - */
240 ##### 2 static int enqueue_tag(git_object **out, git_push *push, git_oid *id)
241 - {
242 ##### 2 git_object *obj = NULL, *target = NULL;
243 - int error;
244 -
245 ##### 2,3 if ((error = git_object_lookup(&obj, push->repo, id, GIT_OBJECT_TAG)) < 0)
246 ##### 4 return error;
247 -
248 ##### 5,15,16 while (git_object_type(obj) == GIT_OBJECT_TAG) {
249 ##### 6-8 if ((error = git_packbuilder_insert(push->pb, git_object_id(obj), NULL)) < 0)
250 ##### 9 break;
251 -
252 ##### 10,11 if ((error = git_tag_target(&target, (git_tag *) obj)) < 0)
253 ##### 12 break;
254 -
255 ##### 13 git_object_free(obj);
256 ##### 14 obj = target;
257 - }
258 -
259 ##### 17 if (error < 0)
260 ##### 18 git_object_free(obj);
261 - else
262 ##### 19 *out = obj;
263 -
264 ##### 20 return error;
265 - }
266 -
267 8 2 static int queue_objects(git_push *push)
268 - {
269 - git_remote_head *head;
270 - push_spec *spec;
271 - git_revwalk *rw;
272 - unsigned int i;
273 8 2 int error = -1;
274 -
275 8 2,3 if (git_revwalk_new(&rw, push->repo) < 0)
276 ##### 4 return -1;
277 -
278 8 5 git_revwalk_sorting(rw, GIT_SORT_TIME);
279 -
280 16 6,60-62 git_vector_foreach(&push->specs, i, spec) {
281 - git_object_t type;
282 - size_t size;
283 -
284 8 7,8 if (git_oid_is_zero(&spec->loid))
285 - /*
286 - * Delete reference on remote side;
287 - * nothing to do here.
288 - */
289 8 9,58 continue;
290 -
291 6 10,11 if (git_oid_equal(&spec->loid, &spec->roid))
292 ##### 12 continue; /* up-to-date */
293 -
294 6 13,14 if (git_odb_read_header(&size, &type, push->repo->_odb, &spec->loid) < 0)
295 ##### 15,59 goto on_error;
296 -
297 6 16 if (type == GIT_OBJECT_TAG) {
298 - git_object *target;
299 -
300 ##### 17,18 if ((error = enqueue_tag(&target, push, &spec->loid)) < 0)
301 ##### 19,34 goto on_error;
302 -
303 ##### 20,21 if (git_object_type(target) == GIT_OBJECT_COMMIT) {
304 ##### 22-24 if (git_revwalk_push(rw, git_object_id(target)) < 0) {
305 ##### 25 git_object_free(target);
306 ##### 33 goto on_error;
307 - }
308 - } else {
309 ##### 26-28 if (git_packbuilder_insert(
310 - push->pb, git_object_id(target), NULL) < 0) {
311 ##### 29 git_object_free(target);
312 ##### 30 goto on_error;
313 - }
314 - }
315 ##### 31,32 git_object_free(target);
316 6 35,36 } else if (git_revwalk_push(rw, &spec->loid) < 0)
317 ##### 37 goto on_error;
318 -
319 6 38 if (!spec->refspec.force) {
320 - git_oid base;
321 -
322 6 39,40 if (git_oid_is_zero(&spec->roid))
323 6 41 continue;
324 -
325 ##### 42,43 if (!git_odb_exists(push->repo->_odb, &spec->roid)) {
326 ##### 44 git_error_set(GIT_ERROR_REFERENCE,
327 - "cannot push because a reference that you are trying to update on the remote contains commits that are not present locally.");
328 ##### 45 error = GIT_ENONFASTFORWARD;
329 ##### 45,56,57 goto on_error;
330 - }
331 -
332 ##### 46 error = git_merge_base(&base, push->repo,
333 ##### 46 &spec->loid, &spec->roid);
334 -
335 ##### 47,48 if (error == GIT_ENOTFOUND ||
336 ##### 49,50 (!error && !git_oid_equal(&base, &spec->roid))) {
337 ##### 51 git_error_set(GIT_ERROR_REFERENCE,
338 - "cannot push non-fastforwardable reference");
339 ##### 52 error = GIT_ENONFASTFORWARD;
340 ##### 52 goto on_error;
341 - }
342 -
343 ##### 53 if (error < 0)
344 ##### 54,55 goto on_error;
345 - }
346 - }
347 -
348 53 63,73-75 git_vector_foreach(&push->remote->refs, i, head) {
349 45 64,65 if (git_oid_is_zero(&head->oid))
350 ##### 66 continue;
351 -
352 45 67-69 if ((error = git_revwalk_hide(rw, &head->oid)) < 0 &&
353 ##### 70,71 error != GIT_ENOTFOUND && error != GIT_EINVALIDSPEC && error != GIT_EPEEL)
354 ##### 72 goto on_error;
355 - }
356 -
357 8 76 error = git_packbuilder_insert_walk(push->pb, rw);
358 -
359 - on_error:
360 8 77 git_revwalk_free(rw);
361 8 78 return error;
362 - }
363 -
364 8 2 static int add_update(git_push *push, push_spec *spec)
365 - {
366 8 2 git_push_update *u = git__calloc(1, sizeof(git_push_update));
367 8 3,4 GIT_ERROR_CHECK_ALLOC(u);
368 -
369 8 5 u->src_refname = git__strdup(spec->refspec.src);
370 8 6,7 GIT_ERROR_CHECK_ALLOC(u->src_refname);
371 -
372 8 8 u->dst_refname = git__strdup(spec->refspec.dst);
373 8 9,10 GIT_ERROR_CHECK_ALLOC(u->dst_refname);
374 -
375 8 11 git_oid_cpy(&u->src, &spec->roid);
376 8 12 git_oid_cpy(&u->dst, &spec->loid);
377 -
378 8 13 return git_vector_insert(&push->updates, u);
379 - }
380 -
381 8 2 static int calculate_work(git_push *push)
382 - {
383 - git_remote_head *head;
384 - push_spec *spec;
385 - unsigned int i, j;
386 -
387 - /* Update local and remote oids*/
388 -
389 16 2,19-21 git_vector_foreach(&push->specs, i, spec) {
390 8 3,4 if (spec->refspec.src && spec->refspec.src[0]!= '\0') {
391 - /* This is a create or update. Local ref must exist. */
392 6 5,6 if (git_reference_name_to_id(
393 6 5 &spec->loid, push->repo, spec->refspec.src) < 0) {
394 ##### 7 git_error_set(GIT_ERROR_REFERENCE, "no such reference '%s'", spec->refspec.src);
395 ##### 8 return -1;
396 - }
397 - }
398 -
399 - /* Remote ref may or may not (e.g. during create) already exist. */
400 35 9,12-14 git_vector_foreach(&push->remote->refs, j, head) {
401 29 10 if (!strcmp(spec->refspec.dst, head->name)) {
402 2 11 git_oid_cpy(&spec->roid, &head->oid);
403 2 15 break;
404 - }
405 - }
406 -
407 8 16,17 if (add_update(push, spec) < 0)
408 ##### 18 return -1;
409 - }
410 -
411 8 22 return 0;
412 - }
413 -
414 9 2 static int do_push(git_push *push, const git_remote_callbacks *callbacks)
415 - {
416 9 2 int error = 0;
417 9 2 git_transport *transport = push->remote->transport;
418 -
419 9 2 if (!transport->push) {
420 1 3 git_error_set(GIT_ERROR_NET, "remote transport doesn't support push");
421 1 4 error = -1;
422 1 4 goto on_error;
423 - }
424 -
425 - /*
426 - * A pack-file MUST be sent if either create or update command
427 - * is used, even if the server already has all the necessary
428 - * objects. In this case the client MUST send an empty pack-file.
429 - */
430 -
431 8 5,6 if ((error = git_packbuilder_new(&push->pb, push->repo)) < 0)
432 ##### 7 goto on_error;
433 -
434 8 8 git_packbuilder_set_threads(push->pb, push->pb_parallelism);
435 -
436 8 9,10 if (callbacks && callbacks->pack_progress)
437 ##### 11,12 if ((error = git_packbuilder_set_callbacks(push->pb, callbacks->pack_progress, callbacks->payload)) < 0)
438 ##### 13 goto on_error;
439 -
440 8 14,15 if ((error = calculate_work(push)) < 0)
441 ##### 16 goto on_error;
442 -
443 8 17-20 if (callbacks && callbacks->push_negotiation &&
444 2 19 (error = callbacks->push_negotiation((const git_push_update **) push->updates.contents,
445 - push->updates.length, callbacks->payload)) < 0)
446 ##### 21 goto on_error;
447 -
448 8 22-24 if ((error = queue_objects(push)) < 0 ||
449 8 24 (error = transport->push(transport, push, callbacks)) < 0)
450 - goto on_error;
451 -
452 - on_error:
453 9 25 git_packbuilder_free(push->pb);
454 9 26 return error;
455 - }
456 -
457 9 2 static int filter_refs(git_remote *remote)
458 - {
459 - const git_remote_head **heads;
460 - size_t heads_len, i;
461 -
462 9 2 git_vector_clear(&remote->refs);
463 -
464 9 3,4 if (git_remote_ls(&heads, &heads_len, remote) < 0)
465 ##### 5 return -1;
466 -
467 76 6,10,11 for (i = 0; i < heads_len; i++) {
468 67 7,8 if (git_vector_insert(&remote->refs, (void *)heads[i]) < 0)
469 ##### 9 return -1;
470 - }
471 -
472 9 12 return 0;
473 - }
474 -
475 9 2 int git_push_finish(git_push *push, const git_remote_callbacks *callbacks)
476 - {
477 - int error;
478 -
479 9 2-5 if (!git_remote_connected(push->remote) &&
480 ##### 4 (error = git_remote__connect(push->remote, GIT_DIRECTION_PUSH, callbacks, &push->connection)) < 0)
481 ##### 6 return error;
482 -
483 9 7-10 if ((error = filter_refs(push->remote)) < 0 ||
484 - (error = do_push(push, callbacks)) < 0)
485 2 11 return error;
486 -
487 7 12 if (!push->unpack_ok) {
488 ##### 13 error = -1;
489 ##### 13 git_error_set(GIT_ERROR_NET, "unpacking the sent packfile failed on the remote");
490 - }
491 -
492 7 14 return error;
493 - }
494 -
495 ##### 2 int git_push_status_foreach(git_push *push,
496 - int (*cb)(const char *ref, const char *msg, void *data),
497 - void *data)
498 - {
499 - push_status *status;
500 - unsigned int i;
501 -
502 ##### 2,6-8 git_vector_foreach(&push->status, i, status) {
503 ##### 3 int error = cb(status->ref, status->msg, data);
504 ##### 4 if (error)
505 ##### 5 return git_error_set_after_callback(error);
506 - }
507 -
508 ##### 9 return 0;
509 - }
510 -
511 7 2 void git_push_status_free(push_status *status)
512 - {
513 7 2 if (status == NULL)
514 7 3,7 return;
515 -
516 7 4 git__free(status->msg);
517 7 5 git__free(status->ref);
518 7 6 git__free(status);
519 - }
520 -
521 611 2 void git_push_free(git_push *push)
522 - {
523 - push_spec *spec;
524 - push_status *status;
525 - git_push_update *update;
526 - unsigned int i;
527 -
528 611 2 if (push == NULL)
529 611 3,25 return;
530 -
531 18 4,6-8 git_vector_foreach(&push->specs, i, spec) {
532 9 5 free_refspec(spec);
533 - }
534 9 9 git_vector_free(&push->specs);
535 -
536 16 10,12-14 git_vector_foreach(&push->status, i, status) {
537 7 11 git_push_status_free(status);
538 - }
539 9 15 git_vector_free(&push->status);
540 -
541 17 16,20-22 git_vector_foreach(&push->updates, i, update) {
542 8 17 git__free(update->src_refname);
543 8 18 git__free(update->dst_refname);
544 8 19 git__free(update);
545 - }
546 9 23 git_vector_free(&push->updates);
547 -
548 9 24 git__free(push);
549 - }
550 -
551 1 2 int git_push_options_init(git_push_options *opts, unsigned int version)
552 - {
553 1 2-4 GIT_INIT_STRUCTURE_FROM_TEMPLATE(
554 - opts, version, git_push_options, GIT_PUSH_OPTIONS_INIT);
555 1 5 return 0;
556 - }
557 -
558 - #ifndef GIT_DEPRECATE_HARD
559 ##### 2 int git_push_init_options(git_push_options *opts, unsigned int version)
560 - {
561 ##### 2 return git_push_options_init(opts, version);
562 - }
563 - #endif