2 f8a36e22 2021-08-26 stsp * Copyright (c) 2018, 2019 Ori Bernstein <ori@openbsd.org>
3 f8a36e22 2021-08-26 stsp * Copyright (c) 2021 Stefan Sperling <stsp@openbsd.org>
5 f8a36e22 2021-08-26 stsp * Permission to use, copy, modify, and distribute this software for any
6 f8a36e22 2021-08-26 stsp * purpose with or without fee is hereby granted, provided that the above
7 f8a36e22 2021-08-26 stsp * copyright notice and this permission notice appear in all copies.
9 f8a36e22 2021-08-26 stsp * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 f8a36e22 2021-08-26 stsp * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 f8a36e22 2021-08-26 stsp * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 f8a36e22 2021-08-26 stsp * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 f8a36e22 2021-08-26 stsp * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 f8a36e22 2021-08-26 stsp * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 f8a36e22 2021-08-26 stsp * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18 f8a36e22 2021-08-26 stsp #include <sys/types.h>
19 f8a36e22 2021-08-26 stsp #include <sys/stat.h>
20 f8a36e22 2021-08-26 stsp #include <sys/uio.h>
21 f8a36e22 2021-08-26 stsp #include <sys/socket.h>
22 f8a36e22 2021-08-26 stsp #include <sys/wait.h>
23 f8a36e22 2021-08-26 stsp #include <sys/resource.h>
24 f8a36e22 2021-08-26 stsp #include <sys/socket.h>
26 f8a36e22 2021-08-26 stsp #include <errno.h>
27 f8a36e22 2021-08-26 stsp #include <err.h>
28 f8a36e22 2021-08-26 stsp #include <fcntl.h>
29 f8a36e22 2021-08-26 stsp #include <stdio.h>
30 f8a36e22 2021-08-26 stsp #include <stdlib.h>
31 f8a36e22 2021-08-26 stsp #include <string.h>
32 f8a36e22 2021-08-26 stsp #include <stdint.h>
33 f8a36e22 2021-08-26 stsp #include <unistd.h>
34 f8a36e22 2021-08-26 stsp #include <zlib.h>
35 f8a36e22 2021-08-26 stsp #include <ctype.h>
36 f8a36e22 2021-08-26 stsp #include <limits.h>
37 f8a36e22 2021-08-26 stsp #include <time.h>
38 f8a36e22 2021-08-26 stsp #include <uuid.h>
40 f8a36e22 2021-08-26 stsp #include "got_error.h"
41 f8a36e22 2021-08-26 stsp #include "got_reference.h"
42 f8a36e22 2021-08-26 stsp #include "got_repository.h"
43 f8a36e22 2021-08-26 stsp #include "got_path.h"
44 f8a36e22 2021-08-26 stsp #include "got_cancel.h"
45 f8a36e22 2021-08-26 stsp #include "got_worktree.h"
46 f8a36e22 2021-08-26 stsp #include "got_object.h"
47 f8a36e22 2021-08-26 stsp #include "got_opentemp.h"
48 f8a36e22 2021-08-26 stsp #include "got_send.h"
49 f8a36e22 2021-08-26 stsp #include "got_repository_admin.h"
50 f8a36e22 2021-08-26 stsp #include "got_commit_graph.h"
52 f8a36e22 2021-08-26 stsp #include "got_lib_delta.h"
53 f8a36e22 2021-08-26 stsp #include "got_lib_inflate.h"
54 f8a36e22 2021-08-26 stsp #include "got_lib_object.h"
55 f8a36e22 2021-08-26 stsp #include "got_lib_object_parse.h"
56 f8a36e22 2021-08-26 stsp #include "got_lib_object_create.h"
57 f8a36e22 2021-08-26 stsp #include "got_lib_pack.h"
58 f8a36e22 2021-08-26 stsp #include "got_lib_sha1.h"
59 f8a36e22 2021-08-26 stsp #include "got_lib_privsep.h"
60 f8a36e22 2021-08-26 stsp #include "got_lib_object_cache.h"
61 f8a36e22 2021-08-26 stsp #include "got_lib_repository.h"
62 f8a36e22 2021-08-26 stsp #include "got_lib_pack_create.h"
63 d65a88a2 2021-09-05 stsp #include "got_lib_dial.h"
65 f8a36e22 2021-08-26 stsp #ifndef nitems
66 f8a36e22 2021-08-26 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
69 f8a36e22 2021-08-26 stsp #ifndef ssizeof
70 f8a36e22 2021-08-26 stsp #define ssizeof(_x) ((ssize_t)(sizeof(_x)))
74 f8a36e22 2021-08-26 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
77 f8a36e22 2021-08-26 stsp const struct got_error *
78 f8a36e22 2021-08-26 stsp got_send_connect(pid_t *sendpid, int *sendfd, const char *proto,
79 f8a36e22 2021-08-26 stsp const char *host, const char *port, const char *server_path, int verbosity)
81 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
83 f8a36e22 2021-08-26 stsp *sendpid = -1;
84 f8a36e22 2021-08-26 stsp *sendfd = -1;
86 f8a36e22 2021-08-26 stsp if (strcmp(proto, "ssh") == 0 || strcmp(proto, "git+ssh") == 0)
87 d65a88a2 2021-09-05 stsp err = got_dial_ssh(sendpid, sendfd, host, port, server_path,
88 d65a88a2 2021-09-05 stsp GOT_DIAL_DIRECTION_SEND, verbosity);
89 f8a36e22 2021-08-26 stsp else if (strcmp(proto, "git") == 0)
90 d65a88a2 2021-09-05 stsp err = got_dial_git(sendfd, host, port, server_path,
91 d65a88a2 2021-09-05 stsp GOT_DIAL_DIRECTION_SEND);
92 f8a36e22 2021-08-26 stsp else if (strcmp(proto, "http") == 0 || strcmp(proto, "git+http") == 0)
93 f8a36e22 2021-08-26 stsp err = got_error_path(proto, GOT_ERR_NOT_IMPL);
95 f8a36e22 2021-08-26 stsp err = got_error_path(proto, GOT_ERR_BAD_PROTO);
99 f8a36e22 2021-08-26 stsp struct pack_progress_arg {
100 f8a36e22 2021-08-26 stsp got_send_progress_cb progress_cb;
101 f8a36e22 2021-08-26 stsp void *progress_arg;
103 f8a36e22 2021-08-26 stsp off_t packfile_size;
104 f8a36e22 2021-08-26 stsp int ncommits;
105 f8a36e22 2021-08-26 stsp int nobj_total;
106 f8a36e22 2021-08-26 stsp int nobj_deltify;
107 f8a36e22 2021-08-26 stsp int nobj_written;
110 f8a36e22 2021-08-26 stsp static const struct got_error *
111 f8a36e22 2021-08-26 stsp pack_progress(void *arg, off_t packfile_size, int ncommits,
112 f8a36e22 2021-08-26 stsp int nobj_total, int nobj_deltify, int nobj_written)
114 f8a36e22 2021-08-26 stsp const struct got_error *err;
115 f8a36e22 2021-08-26 stsp struct pack_progress_arg *a = arg;
117 f8a36e22 2021-08-26 stsp err = a->progress_cb(a->progress_arg, packfile_size, ncommits,
118 f8a36e22 2021-08-26 stsp nobj_total, nobj_deltify, nobj_written, 0, NULL, 0);
120 f8a36e22 2021-08-26 stsp return err;
122 f8a36e22 2021-08-26 stsp a->packfile_size = packfile_size;
123 f8a36e22 2021-08-26 stsp a->ncommits = ncommits;
124 f8a36e22 2021-08-26 stsp a->nobj_total = nobj_total;
125 f8a36e22 2021-08-26 stsp a->nobj_deltify = nobj_deltify;
126 f8a36e22 2021-08-26 stsp a->nobj_written = nobj_written;
127 f8a36e22 2021-08-26 stsp return NULL;
130 f8a36e22 2021-08-26 stsp static const struct got_error *
131 f8a36e22 2021-08-26 stsp insert_ref(struct got_reflist_head *refs, const char *refname,
132 f8a36e22 2021-08-26 stsp struct got_repository *repo)
134 f8a36e22 2021-08-26 stsp const struct got_error *err;
135 f8a36e22 2021-08-26 stsp struct got_reference *ref;
136 f8a36e22 2021-08-26 stsp struct got_reflist_entry *new;
138 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, refname, 0);
140 f8a36e22 2021-08-26 stsp return err;
142 f8a36e22 2021-08-26 stsp err = got_reflist_insert(&new, refs, ref, got_ref_cmp_by_name, NULL);
143 f8a36e22 2021-08-26 stsp if (err || new == NULL /* duplicate */)
144 f8a36e22 2021-08-26 stsp got_ref_close(ref);
146 f8a36e22 2021-08-26 stsp return err;
149 f8a36e22 2021-08-26 stsp static const struct got_error *
150 f8a36e22 2021-08-26 stsp check_linear_ancestry(const char *refname, struct got_object_id *my_id,
151 f8a36e22 2021-08-26 stsp struct got_object_id *their_id, struct got_repository *repo,
152 f8a36e22 2021-08-26 stsp got_cancel_cb cancel_cb, void *cancel_arg)
154 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
155 f8a36e22 2021-08-26 stsp struct got_object_id *yca_id;
156 f8a36e22 2021-08-26 stsp int obj_type;
158 f8a36e22 2021-08-26 stsp err = got_object_get_type(&obj_type, repo, their_id);
160 f8a36e22 2021-08-26 stsp return err;
161 f8a36e22 2021-08-26 stsp if (obj_type != GOT_OBJ_TYPE_COMMIT)
162 f8a36e22 2021-08-26 stsp return got_error_fmt(GOT_ERR_OBJ_TYPE,
163 f8a36e22 2021-08-26 stsp "bad object type on server for %s", refname);
165 f8a36e22 2021-08-26 stsp err = got_commit_graph_find_youngest_common_ancestor(&yca_id,
166 768705e3 2021-09-27 thomas my_id, their_id, 1, repo, cancel_cb, cancel_arg);
168 f8a36e22 2021-08-26 stsp return err;
169 f8a36e22 2021-08-26 stsp if (yca_id == NULL)
170 f8a36e22 2021-08-26 stsp return got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
173 f8a36e22 2021-08-26 stsp * Require a straight line of history between the two commits,
174 f8a36e22 2021-08-26 stsp * with their commit being older than my commit.
176 f8a36e22 2021-08-26 stsp * Non-linear situations such as this require a rebase:
178 f8a36e22 2021-08-26 stsp * (theirs) D F (mine)
186 f8a36e22 2021-08-26 stsp if (got_object_id_cmp(their_id, yca_id) != 0)
187 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
189 f8a36e22 2021-08-26 stsp free(yca_id);
190 f8a36e22 2021-08-26 stsp return err;
193 f8a36e22 2021-08-26 stsp static const struct got_error *
194 f8a36e22 2021-08-26 stsp realloc_ids(struct got_object_id ***ids, size_t *nalloc, size_t n)
196 f8a36e22 2021-08-26 stsp struct got_object_id **new;
197 f8a36e22 2021-08-26 stsp const size_t alloc_chunksz = 256;
199 535e07c7 2021-08-29 naddy if (*nalloc >= n)
200 f8a36e22 2021-08-26 stsp return NULL;
202 f8a36e22 2021-08-26 stsp new = recallocarray(*ids, *nalloc, *nalloc + alloc_chunksz,
203 f8a36e22 2021-08-26 stsp sizeof(struct got_object_id));
204 f8a36e22 2021-08-26 stsp if (new == NULL)
205 f8a36e22 2021-08-26 stsp return got_error_from_errno("recallocarray");
207 f8a36e22 2021-08-26 stsp *ids = new;
208 f8a36e22 2021-08-26 stsp *nalloc += alloc_chunksz;
209 f8a36e22 2021-08-26 stsp return NULL;
212 f8a36e22 2021-08-26 stsp static struct got_reference *
213 f8a36e22 2021-08-26 stsp find_ref(struct got_reflist_head *refs, const char *refname)
215 f8a36e22 2021-08-26 stsp struct got_reflist_entry *re;
217 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, refs, entry) {
218 f8a36e22 2021-08-26 stsp if (got_path_cmp(got_ref_get_name(re->ref), refname,
219 f8a36e22 2021-08-26 stsp strlen(got_ref_get_name(re->ref)),
220 f8a36e22 2021-08-26 stsp strlen(refname)) == 0) {
221 f8a36e22 2021-08-26 stsp return re->ref;
225 f8a36e22 2021-08-26 stsp return NULL;
228 f8a36e22 2021-08-26 stsp static struct got_pathlist_entry *
229 f8a36e22 2021-08-26 stsp find_their_ref(struct got_pathlist_head *their_refs, const char *refname)
231 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
233 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, their_refs, entry) {
234 f8a36e22 2021-08-26 stsp const char *their_refname = pe->path;
235 f8a36e22 2021-08-26 stsp if (got_path_cmp(their_refname, refname,
236 f8a36e22 2021-08-26 stsp strlen(their_refname), strlen(refname)) == 0) {
241 f8a36e22 2021-08-26 stsp return NULL;
244 f8a36e22 2021-08-26 stsp static const struct got_error *
245 f8a36e22 2021-08-26 stsp get_remote_refname(char **remote_refname, const char *remote_name,
246 f8a36e22 2021-08-26 stsp const char *refname)
248 f8a36e22 2021-08-26 stsp if (strncmp(refname, "refs/", 5) == 0)
249 f8a36e22 2021-08-26 stsp refname += 5;
250 f8a36e22 2021-08-26 stsp if (strncmp(refname, "heads/", 6) == 0)
251 f8a36e22 2021-08-26 stsp refname += 6;
253 f8a36e22 2021-08-26 stsp if (asprintf(remote_refname, "refs/remotes/%s/%s",
254 f8a36e22 2021-08-26 stsp remote_name, refname) == -1)
255 f8a36e22 2021-08-26 stsp return got_error_from_errno("asprintf");
257 f8a36e22 2021-08-26 stsp return NULL;
260 f8a36e22 2021-08-26 stsp static const struct got_error *
261 f8a36e22 2021-08-26 stsp update_remote_ref(struct got_reference *my_ref, const char *remote_name,
262 f8a36e22 2021-08-26 stsp struct got_repository *repo)
264 f8a36e22 2021-08-26 stsp const struct got_error *err, *unlock_err;
265 f8a36e22 2021-08-26 stsp struct got_object_id *my_id;
266 f8a36e22 2021-08-26 stsp struct got_reference *ref = NULL;
267 f8a36e22 2021-08-26 stsp char *remote_refname = NULL;
268 f8a36e22 2021-08-26 stsp int ref_locked = 0;
270 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
272 f8a36e22 2021-08-26 stsp return err;
274 f8a36e22 2021-08-26 stsp err = get_remote_refname(&remote_refname, remote_name,
275 f8a36e22 2021-08-26 stsp got_ref_get_name(my_ref));
279 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, remote_refname, 1 /* lock */);
281 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NOT_REF)
283 f8a36e22 2021-08-26 stsp err = got_ref_alloc(&ref, remote_refname, my_id);
287 f8a36e22 2021-08-26 stsp ref_locked = 1;
288 f8a36e22 2021-08-26 stsp err = got_ref_change_ref(ref, my_id);
293 f8a36e22 2021-08-26 stsp err = got_ref_write(ref, repo);
296 f8a36e22 2021-08-26 stsp if (ref_locked) {
297 f8a36e22 2021-08-26 stsp unlock_err = got_ref_unlock(ref);
298 f8a36e22 2021-08-26 stsp if (unlock_err && err == NULL)
299 f8a36e22 2021-08-26 stsp err = unlock_err;
301 f8a36e22 2021-08-26 stsp got_ref_close(ref);
303 f8a36e22 2021-08-26 stsp free(my_id);
304 f8a36e22 2021-08-26 stsp free(remote_refname);
305 f8a36e22 2021-08-26 stsp return err;
308 f8a36e22 2021-08-26 stsp const struct got_error*
309 f8a36e22 2021-08-26 stsp got_send_pack(const char *remote_name, struct got_pathlist_head *branch_names,
310 f8a36e22 2021-08-26 stsp struct got_pathlist_head *tag_names,
311 f8a36e22 2021-08-26 stsp struct got_pathlist_head *delete_branches,
312 f8a36e22 2021-08-26 stsp int verbosity, int overwrite_refs, int sendfd,
313 f8a36e22 2021-08-26 stsp struct got_repository *repo, got_send_progress_cb progress_cb,
314 f8a36e22 2021-08-26 stsp void *progress_arg, got_cancel_cb cancel_cb, void *cancel_arg)
316 f8a36e22 2021-08-26 stsp int imsg_sendfds[2];
317 f8a36e22 2021-08-26 stsp int npackfd = -1, nsendfd = -1;
318 f8a36e22 2021-08-26 stsp int sendstatus, done = 0;
319 f8a36e22 2021-08-26 stsp const struct got_error *err;
320 f8a36e22 2021-08-26 stsp struct imsgbuf sendibuf;
321 f8a36e22 2021-08-26 stsp pid_t sendpid = -1;
322 f8a36e22 2021-08-26 stsp struct got_reflist_head refs;
323 f8a36e22 2021-08-26 stsp struct got_pathlist_head have_refs;
324 f8a36e22 2021-08-26 stsp struct got_pathlist_head their_refs;
325 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
326 f8a36e22 2021-08-26 stsp struct got_reflist_entry *re;
327 f8a36e22 2021-08-26 stsp struct got_object_id **our_ids = NULL;
328 f8a36e22 2021-08-26 stsp struct got_object_id **their_ids = NULL;
329 f8a36e22 2021-08-26 stsp int i, nours = 0, ntheirs = 0;
330 f8a36e22 2021-08-26 stsp size_t nalloc_ours = 0, nalloc_theirs = 0;
331 27b75514 2021-08-28 stsp int refs_to_send = 0, refs_to_delete = 0;
332 f8a36e22 2021-08-26 stsp off_t bytes_sent = 0;
333 f8a36e22 2021-08-26 stsp struct pack_progress_arg ppa;
334 f8a36e22 2021-08-26 stsp uint8_t packsha1[SHA1_DIGEST_LENGTH];
335 f8a36e22 2021-08-26 stsp FILE *packfile = NULL;
337 f8a36e22 2021-08-26 stsp TAILQ_INIT(&refs);
338 f8a36e22 2021-08-26 stsp TAILQ_INIT(&have_refs);
339 f8a36e22 2021-08-26 stsp TAILQ_INIT(&their_refs);
341 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, branch_names, entry) {
342 f8a36e22 2021-08-26 stsp const char *branchname = pe->path;
343 f8a36e22 2021-08-26 stsp if (strncmp(branchname, "refs/heads/", 11) != 0) {
345 f8a36e22 2021-08-26 stsp if (asprintf(&s, "refs/heads/%s", branchname) == -1) {
346 f8a36e22 2021-08-26 stsp err = got_error_from_errno("asprintf");
349 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, s, repo);
352 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, branchname, repo);
358 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, delete_branches, entry) {
359 f8a36e22 2021-08-26 stsp const char *branchname = pe->path;
360 f8a36e22 2021-08-26 stsp struct got_reference *ref;
361 f8a36e22 2021-08-26 stsp if (strncmp(branchname, "refs/heads/", 11) != 0) {
362 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_DELETE_REF, "%s",
363 f8a36e22 2021-08-26 stsp branchname);
366 f8a36e22 2021-08-26 stsp ref = find_ref(&refs, branchname);
368 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_DELETE_REF,
369 f8a36e22 2021-08-26 stsp "changes on %s will be sent to server",
370 f8a36e22 2021-08-26 stsp branchname);
375 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, tag_names, entry) {
376 f8a36e22 2021-08-26 stsp const char *tagname = pe->path;
377 f8a36e22 2021-08-26 stsp if (strncmp(tagname, "refs/tags/", 10) != 0) {
379 f8a36e22 2021-08-26 stsp if (asprintf(&s, "refs/tags/%s", tagname) == -1) {
380 f8a36e22 2021-08-26 stsp err = got_error_from_errno("asprintf");
383 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, s, repo);
386 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, tagname, repo);
392 f8a36e22 2021-08-26 stsp if (TAILQ_EMPTY(&refs) && TAILQ_EMPTY(delete_branches)) {
393 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_SEND_EMPTY);
397 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
398 f8a36e22 2021-08-26 stsp struct got_object_id *id;
399 f8a36e22 2021-08-26 stsp int obj_type;
401 f8a36e22 2021-08-26 stsp if (got_ref_is_symbolic(re->ref)) {
402 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_BAD_REF_TYPE,
403 f8a36e22 2021-08-26 stsp "cannot send symbolic reference %s",
404 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref));
408 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&id, repo, re->ref);
411 f8a36e22 2021-08-26 stsp err = got_object_get_type(&obj_type, repo, id);
415 f8a36e22 2021-08-26 stsp switch (obj_type) {
416 f8a36e22 2021-08-26 stsp case GOT_OBJ_TYPE_COMMIT:
417 f8a36e22 2021-08-26 stsp case GOT_OBJ_TYPE_TAG:
420 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_OBJ_TYPE,
421 f8a36e22 2021-08-26 stsp "cannot send %s", got_ref_get_name(re->ref));
426 f8a36e22 2021-08-26 stsp packfile = got_opentemp();
427 f8a36e22 2021-08-26 stsp if (packfile == NULL) {
428 f8a36e22 2021-08-26 stsp err = got_error_from_errno("got_opentemp");
432 f8a36e22 2021-08-26 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_sendfds) == -1) {
433 f8a36e22 2021-08-26 stsp err = got_error_from_errno("socketpair");
437 f8a36e22 2021-08-26 stsp sendpid = fork();
438 f8a36e22 2021-08-26 stsp if (sendpid == -1) {
439 f8a36e22 2021-08-26 stsp err = got_error_from_errno("fork");
441 f8a36e22 2021-08-26 stsp } else if (sendpid == 0){
442 f8a36e22 2021-08-26 stsp got_privsep_exec_child(imsg_sendfds,
443 f8a36e22 2021-08-26 stsp GOT_PATH_PROG_SEND_PACK, got_repo_get_path(repo));
446 f8a36e22 2021-08-26 stsp if (close(imsg_sendfds[1]) == -1) {
447 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
450 f8a36e22 2021-08-26 stsp imsg_init(&sendibuf, imsg_sendfds[0]);
451 f8a36e22 2021-08-26 stsp nsendfd = dup(sendfd);
452 f8a36e22 2021-08-26 stsp if (nsendfd == -1) {
453 f8a36e22 2021-08-26 stsp err = got_error_from_errno("dup");
458 f8a36e22 2021-08-26 stsp * Convert reflist to pathlist since the privsep layer
459 f8a36e22 2021-08-26 stsp * is linked into helper programs which lack reference.c.
461 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
462 f8a36e22 2021-08-26 stsp struct got_object_id *id;
463 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&id, repo, re->ref);
466 f8a36e22 2021-08-26 stsp err = got_pathlist_append(&have_refs,
467 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref), id);
471 f8a36e22 2021-08-26 stsp * Also prepare the array of our object IDs which
472 f8a36e22 2021-08-26 stsp * will be needed for generating a pack file.
474 535e07c7 2021-08-29 naddy err = realloc_ids(&our_ids, &nalloc_ours, nours + 1);
477 f8a36e22 2021-08-26 stsp our_ids[nours] = id;
481 f8a36e22 2021-08-26 stsp err = got_privsep_send_send_req(&sendibuf, nsendfd, &have_refs,
482 f8a36e22 2021-08-26 stsp delete_branches, verbosity);
485 f8a36e22 2021-08-26 stsp nsendfd = -1;
487 f8a36e22 2021-08-26 stsp err = got_privsep_recv_send_remote_refs(&their_refs, &sendibuf);
492 f8a36e22 2021-08-26 stsp * Process references reported by the server.
493 f8a36e22 2021-08-26 stsp * Push appropriate object IDs onto the "their IDs" array.
494 f8a36e22 2021-08-26 stsp * This array will be used to exclude objects which already
495 f8a36e22 2021-08-26 stsp * exist on the server from our pack file.
497 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, &their_refs, entry) {
498 f8a36e22 2021-08-26 stsp const char *refname = pe->path;
499 f8a36e22 2021-08-26 stsp struct got_object_id *their_id = pe->data;
500 f8a36e22 2021-08-26 stsp int have_their_id;
501 f8a36e22 2021-08-26 stsp struct got_object *obj;
502 f8a36e22 2021-08-26 stsp struct got_reference *my_ref = NULL;
503 f8a36e22 2021-08-26 stsp int is_tag = 0;
505 f8a36e22 2021-08-26 stsp /* Don't blindly trust the server to send us valid names. */
506 f8a36e22 2021-08-26 stsp if (!got_ref_name_is_valid(refname))
510 f8a36e22 2021-08-26 stsp * Find out whether this is a reference we want to upload.
511 f8a36e22 2021-08-26 stsp * Otherwise we can still use this reference as a hint to
512 f8a36e22 2021-08-26 stsp * avoid uploading any objects the server already has.
514 f8a36e22 2021-08-26 stsp my_ref = find_ref(&refs, refname);
515 f8a36e22 2021-08-26 stsp if (my_ref) {
516 c2105d00 2021-09-14 stsp struct got_object_id *my_id;
517 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
520 c2105d00 2021-09-14 stsp if (got_object_id_cmp(my_id, their_id) != 0)
521 c2105d00 2021-09-14 stsp refs_to_send++;
522 c2105d00 2021-09-14 stsp free(my_id);
526 f8a36e22 2021-08-26 stsp if (strncmp(refname, "refs/tags/", 10) == 0)
527 f8a36e22 2021-08-26 stsp is_tag = 1;
529 f8a36e22 2021-08-26 stsp /* Prevent tags from being overwritten by default. */
530 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref && is_tag) {
531 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_TAG_EXISTS,
532 f8a36e22 2021-08-26 stsp "%s", refname);
536 f8a36e22 2021-08-26 stsp /* Check if their object exists locally. */
537 f8a36e22 2021-08-26 stsp err = got_object_open(&obj, repo, their_id);
539 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NO_OBJ)
541 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref != NULL) {
542 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_ANCESTRY,
543 f8a36e22 2021-08-26 stsp "%s", refname);
546 f8a36e22 2021-08-26 stsp have_their_id = 0;
548 f8a36e22 2021-08-26 stsp got_object_close(obj);
549 f8a36e22 2021-08-26 stsp have_their_id = 1;
552 535e07c7 2021-08-29 naddy err = realloc_ids(&their_ids, &nalloc_theirs, ntheirs + 1);
556 f8a36e22 2021-08-26 stsp if (have_their_id) {
557 f8a36e22 2021-08-26 stsp /* Enforce linear ancestry if required. */
558 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref && !is_tag) {
559 f8a36e22 2021-08-26 stsp struct got_object_id *my_id;
560 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
563 f8a36e22 2021-08-26 stsp err = check_linear_ancestry(refname, my_id,
564 f8a36e22 2021-08-26 stsp their_id, repo, cancel_cb, cancel_arg);
565 f8a36e22 2021-08-26 stsp free(my_id);
566 f8a36e22 2021-08-26 stsp my_id = NULL;
570 f8a36e22 2021-08-26 stsp /* Exclude any objects reachable via their ID. */
571 f8a36e22 2021-08-26 stsp their_ids[ntheirs] = got_object_id_dup(their_id);
572 f8a36e22 2021-08-26 stsp if (their_ids[ntheirs] == NULL) {
573 f8a36e22 2021-08-26 stsp err = got_error_from_errno("got_object_id_dup");
577 f8a36e22 2021-08-26 stsp } else if (!is_tag) {
578 f8a36e22 2021-08-26 stsp char *remote_refname;
579 f8a36e22 2021-08-26 stsp struct got_reference *ref;
581 f8a36e22 2021-08-26 stsp * Exclude any objects which exist on the server
582 f8a36e22 2021-08-26 stsp * according to a locally cached remote reference.
584 f8a36e22 2021-08-26 stsp err = get_remote_refname(&remote_refname,
585 f8a36e22 2021-08-26 stsp remote_name, refname);
588 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, remote_refname, 0);
589 f8a36e22 2021-08-26 stsp free(remote_refname);
591 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NOT_REF)
594 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&their_ids[ntheirs],
595 f8a36e22 2021-08-26 stsp repo, ref);
596 f8a36e22 2021-08-26 stsp got_ref_close(ref);
604 f8a36e22 2021-08-26 stsp /* Account for any new references we are going to upload. */
605 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
606 f8a36e22 2021-08-26 stsp if (find_their_ref(&their_refs,
607 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref)) == NULL)
608 f8a36e22 2021-08-26 stsp refs_to_send++;
611 1bd76734 2021-08-26 stsp /* Account for any existing references we are going to delete. */
612 1bd76734 2021-08-26 stsp TAILQ_FOREACH(pe, delete_branches, entry) {
613 1bd76734 2021-08-26 stsp const char *branchname = pe->path;
614 1bd76734 2021-08-26 stsp if (find_their_ref(&their_refs, branchname))
615 27b75514 2021-08-28 stsp refs_to_delete++;
618 27b75514 2021-08-28 stsp if (refs_to_send == 0 && refs_to_delete == 0) {
619 f8a36e22 2021-08-26 stsp got_privsep_send_stop(imsg_sendfds[0]);
623 27b75514 2021-08-28 stsp if (refs_to_send > 0) {
624 27b75514 2021-08-28 stsp memset(&ppa, 0, sizeof(ppa));
625 27b75514 2021-08-28 stsp ppa.progress_cb = progress_cb;
626 27b75514 2021-08-28 stsp ppa.progress_arg = progress_arg;
627 27b75514 2021-08-28 stsp err = got_pack_create(packsha1, packfile, their_ids, ntheirs,
628 27b75514 2021-08-28 stsp our_ids, nours, repo, 0, 1, pack_progress, &ppa,
629 27b75514 2021-08-28 stsp cancel_cb, cancel_arg);
633 27b75514 2021-08-28 stsp if (fflush(packfile) == -1) {
634 27b75514 2021-08-28 stsp err = got_error_from_errno("fflush");
638 27b75514 2021-08-28 stsp npackfd = dup(fileno(packfile));
639 27b75514 2021-08-28 stsp if (npackfd == -1) {
640 27b75514 2021-08-28 stsp err = got_error_from_errno("dup");
643 27b75514 2021-08-28 stsp err = got_privsep_send_packfd(&sendibuf, npackfd);
644 27b75514 2021-08-28 stsp if (err != NULL)
646 27b75514 2021-08-28 stsp npackfd = -1;
648 27b75514 2021-08-28 stsp err = got_privsep_send_packfd(&sendibuf, -1);
649 27b75514 2021-08-28 stsp if (err != NULL)
653 f8a36e22 2021-08-26 stsp while (!done) {
654 f8a36e22 2021-08-26 stsp int success = 0;
655 f8a36e22 2021-08-26 stsp char *refname = NULL;
656 f8a36e22 2021-08-26 stsp off_t bytes_sent_cur = 0;
657 f8a36e22 2021-08-26 stsp if (cancel_cb) {
658 f8a36e22 2021-08-26 stsp err = (*cancel_cb)(cancel_arg);
662 f8a36e22 2021-08-26 stsp err = got_privsep_recv_send_progress(&done, &bytes_sent,
663 f8a36e22 2021-08-26 stsp &success, &refname, &sendibuf);
666 f8a36e22 2021-08-26 stsp if (refname && got_ref_name_is_valid(refname) && success &&
667 f8a36e22 2021-08-26 stsp strncmp(refname, "refs/tags/", 10) != 0) {
668 f8a36e22 2021-08-26 stsp struct got_reference *my_ref;
670 f8a36e22 2021-08-26 stsp * The server has accepted our changes.
671 f8a36e22 2021-08-26 stsp * Update our reference in refs/remotes/ accordingly.
673 f8a36e22 2021-08-26 stsp my_ref = find_ref(&refs, refname);
674 f8a36e22 2021-08-26 stsp if (my_ref) {
675 f8a36e22 2021-08-26 stsp err = update_remote_ref(my_ref, remote_name,
681 f8a36e22 2021-08-26 stsp if (refname != NULL ||
682 f8a36e22 2021-08-26 stsp bytes_sent_cur != bytes_sent) {
683 f8a36e22 2021-08-26 stsp err = progress_cb(progress_arg, ppa.packfile_size,
684 f8a36e22 2021-08-26 stsp ppa.ncommits, ppa.nobj_total, ppa.nobj_deltify,
685 f8a36e22 2021-08-26 stsp ppa.nobj_written, bytes_sent,
686 f8a36e22 2021-08-26 stsp refname, success);
688 f8a36e22 2021-08-26 stsp free(refname);
691 f8a36e22 2021-08-26 stsp bytes_sent_cur = bytes_sent;
693 f8a36e22 2021-08-26 stsp free(refname);
696 f8a36e22 2021-08-26 stsp if (sendpid != -1) {
698 f8a36e22 2021-08-26 stsp got_privsep_send_stop(imsg_sendfds[0]);
699 f8a36e22 2021-08-26 stsp if (waitpid(sendpid, &sendstatus, 0) == -1 && err == NULL)
700 f8a36e22 2021-08-26 stsp err = got_error_from_errno("waitpid");
702 f8a36e22 2021-08-26 stsp if (packfile && fclose(packfile) == EOF && err == NULL)
703 f8a36e22 2021-08-26 stsp err = got_error_from_errno("fclose");
704 f8a36e22 2021-08-26 stsp if (nsendfd != -1 && close(nsendfd) == -1 && err == NULL)
705 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
706 f8a36e22 2021-08-26 stsp if (npackfd != -1 && close(npackfd) == -1 && err == NULL)
707 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
709 f8a36e22 2021-08-26 stsp got_ref_list_free(&refs);
710 f8a36e22 2021-08-26 stsp got_pathlist_free(&have_refs);
711 f8a36e22 2021-08-26 stsp got_pathlist_free(&their_refs);
712 f8a36e22 2021-08-26 stsp for (i = 0; i < nours; i++)
713 f8a36e22 2021-08-26 stsp free(our_ids[i]);
714 f8a36e22 2021-08-26 stsp free(our_ids);
715 f8a36e22 2021-08-26 stsp for (i = 0; i < ntheirs; i++)
716 f8a36e22 2021-08-26 stsp free(their_ids[i]);
717 f8a36e22 2021-08-26 stsp free(their_ids);
718 f8a36e22 2021-08-26 stsp return err;
