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>
39 f8a36e22 2021-08-26 stsp #include "got_error.h"
40 f8a36e22 2021-08-26 stsp #include "got_reference.h"
41 f8a36e22 2021-08-26 stsp #include "got_repository.h"
42 f8a36e22 2021-08-26 stsp #include "got_path.h"
43 f8a36e22 2021-08-26 stsp #include "got_cancel.h"
44 f8a36e22 2021-08-26 stsp #include "got_worktree.h"
45 f8a36e22 2021-08-26 stsp #include "got_object.h"
46 f8a36e22 2021-08-26 stsp #include "got_opentemp.h"
47 f8a36e22 2021-08-26 stsp #include "got_send.h"
48 f8a36e22 2021-08-26 stsp #include "got_repository_admin.h"
49 f8a36e22 2021-08-26 stsp #include "got_commit_graph.h"
51 f8a36e22 2021-08-26 stsp #include "got_lib_delta.h"
52 f8a36e22 2021-08-26 stsp #include "got_lib_inflate.h"
53 f8a36e22 2021-08-26 stsp #include "got_lib_object.h"
54 f8a36e22 2021-08-26 stsp #include "got_lib_object_parse.h"
55 f8a36e22 2021-08-26 stsp #include "got_lib_object_create.h"
56 f8a36e22 2021-08-26 stsp #include "got_lib_pack.h"
57 f8a36e22 2021-08-26 stsp #include "got_lib_sha1.h"
58 f8a36e22 2021-08-26 stsp #include "got_lib_privsep.h"
59 f8a36e22 2021-08-26 stsp #include "got_lib_object_cache.h"
60 f8a36e22 2021-08-26 stsp #include "got_lib_repository.h"
61 f8a36e22 2021-08-26 stsp #include "got_lib_pack_create.h"
62 d65a88a2 2021-09-05 stsp #include "got_lib_dial.h"
64 f8a36e22 2021-08-26 stsp #ifndef nitems
65 f8a36e22 2021-08-26 stsp #define nitems(_a) (sizeof((_a)) / sizeof((_a)[0]))
68 f8a36e22 2021-08-26 stsp #ifndef ssizeof
69 f8a36e22 2021-08-26 stsp #define ssizeof(_x) ((ssize_t)(sizeof(_x)))
73 f8a36e22 2021-08-26 stsp #define MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
76 f8a36e22 2021-08-26 stsp const struct got_error *
77 f8a36e22 2021-08-26 stsp got_send_connect(pid_t *sendpid, int *sendfd, const char *proto,
78 f8a36e22 2021-08-26 stsp const char *host, const char *port, const char *server_path, int verbosity)
80 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
82 f8a36e22 2021-08-26 stsp *sendpid = -1;
83 f8a36e22 2021-08-26 stsp *sendfd = -1;
85 f8a36e22 2021-08-26 stsp if (strcmp(proto, "ssh") == 0 || strcmp(proto, "git+ssh") == 0)
86 d65a88a2 2021-09-05 stsp err = got_dial_ssh(sendpid, sendfd, host, port, server_path,
87 d65a88a2 2021-09-05 stsp GOT_DIAL_DIRECTION_SEND, verbosity);
88 f8a36e22 2021-08-26 stsp else if (strcmp(proto, "git") == 0)
89 d65a88a2 2021-09-05 stsp err = got_dial_git(sendfd, host, port, server_path,
90 d65a88a2 2021-09-05 stsp GOT_DIAL_DIRECTION_SEND);
91 f8a36e22 2021-08-26 stsp else if (strcmp(proto, "http") == 0 || strcmp(proto, "git+http") == 0)
92 f8a36e22 2021-08-26 stsp err = got_error_path(proto, GOT_ERR_NOT_IMPL);
94 f8a36e22 2021-08-26 stsp err = got_error_path(proto, GOT_ERR_BAD_PROTO);
98 f8a36e22 2021-08-26 stsp struct pack_progress_arg {
99 f8a36e22 2021-08-26 stsp got_send_progress_cb progress_cb;
100 f8a36e22 2021-08-26 stsp void *progress_arg;
102 f8a36e22 2021-08-26 stsp off_t packfile_size;
103 f8a36e22 2021-08-26 stsp int ncommits;
104 f8a36e22 2021-08-26 stsp int nobj_total;
105 f8a36e22 2021-08-26 stsp int nobj_deltify;
106 f8a36e22 2021-08-26 stsp int nobj_written;
109 f8a36e22 2021-08-26 stsp static const struct got_error *
110 f8a36e22 2021-08-26 stsp pack_progress(void *arg, off_t packfile_size, int ncommits,
111 f8a36e22 2021-08-26 stsp int nobj_total, int nobj_deltify, int nobj_written)
113 f8a36e22 2021-08-26 stsp const struct got_error *err;
114 f8a36e22 2021-08-26 stsp struct pack_progress_arg *a = arg;
116 f8a36e22 2021-08-26 stsp err = a->progress_cb(a->progress_arg, packfile_size, ncommits,
117 f8a36e22 2021-08-26 stsp nobj_total, nobj_deltify, nobj_written, 0, NULL, 0);
119 f8a36e22 2021-08-26 stsp return err;
121 f8a36e22 2021-08-26 stsp a->packfile_size = packfile_size;
122 f8a36e22 2021-08-26 stsp a->ncommits = ncommits;
123 f8a36e22 2021-08-26 stsp a->nobj_total = nobj_total;
124 f8a36e22 2021-08-26 stsp a->nobj_deltify = nobj_deltify;
125 f8a36e22 2021-08-26 stsp a->nobj_written = nobj_written;
126 f8a36e22 2021-08-26 stsp return NULL;
129 f8a36e22 2021-08-26 stsp static const struct got_error *
130 f8a36e22 2021-08-26 stsp insert_ref(struct got_reflist_head *refs, const char *refname,
131 f8a36e22 2021-08-26 stsp struct got_repository *repo)
133 f8a36e22 2021-08-26 stsp const struct got_error *err;
134 f8a36e22 2021-08-26 stsp struct got_reference *ref;
135 f8a36e22 2021-08-26 stsp struct got_reflist_entry *new;
137 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, refname, 0);
139 f8a36e22 2021-08-26 stsp return err;
141 f8a36e22 2021-08-26 stsp err = got_reflist_insert(&new, refs, ref, got_ref_cmp_by_name, NULL);
142 f8a36e22 2021-08-26 stsp if (err || new == NULL /* duplicate */)
143 f8a36e22 2021-08-26 stsp got_ref_close(ref);
145 f8a36e22 2021-08-26 stsp return err;
148 f8a36e22 2021-08-26 stsp static const struct got_error *
149 f8a36e22 2021-08-26 stsp check_linear_ancestry(const char *refname, struct got_object_id *my_id,
150 f8a36e22 2021-08-26 stsp struct got_object_id *their_id, struct got_repository *repo,
151 f8a36e22 2021-08-26 stsp got_cancel_cb cancel_cb, void *cancel_arg)
153 f8a36e22 2021-08-26 stsp const struct got_error *err = NULL;
154 f8a36e22 2021-08-26 stsp struct got_object_id *yca_id;
155 f8a36e22 2021-08-26 stsp int obj_type;
157 f8a36e22 2021-08-26 stsp err = got_object_get_type(&obj_type, repo, their_id);
159 f8a36e22 2021-08-26 stsp return err;
160 f8a36e22 2021-08-26 stsp if (obj_type != GOT_OBJ_TYPE_COMMIT)
161 f8a36e22 2021-08-26 stsp return got_error_fmt(GOT_ERR_OBJ_TYPE,
162 f8a36e22 2021-08-26 stsp "bad object type on server for %s", refname);
164 f8a36e22 2021-08-26 stsp err = got_commit_graph_find_youngest_common_ancestor(&yca_id,
165 768705e3 2021-09-27 thomas my_id, their_id, 1, repo, cancel_cb, cancel_arg);
167 f8a36e22 2021-08-26 stsp return err;
168 f8a36e22 2021-08-26 stsp if (yca_id == NULL)
169 f8a36e22 2021-08-26 stsp return got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
172 f8a36e22 2021-08-26 stsp * Require a straight line of history between the two commits,
173 f8a36e22 2021-08-26 stsp * with their commit being older than my commit.
175 f8a36e22 2021-08-26 stsp * Non-linear situations such as this require a rebase:
177 f8a36e22 2021-08-26 stsp * (theirs) D F (mine)
185 f8a36e22 2021-08-26 stsp if (got_object_id_cmp(their_id, yca_id) != 0)
186 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
188 f8a36e22 2021-08-26 stsp free(yca_id);
189 f8a36e22 2021-08-26 stsp return err;
192 f8a36e22 2021-08-26 stsp static const struct got_error *
193 f8a36e22 2021-08-26 stsp realloc_ids(struct got_object_id ***ids, size_t *nalloc, size_t n)
195 f8a36e22 2021-08-26 stsp struct got_object_id **new;
196 f8a36e22 2021-08-26 stsp const size_t alloc_chunksz = 256;
198 535e07c7 2021-08-29 naddy if (*nalloc >= n)
199 f8a36e22 2021-08-26 stsp return NULL;
201 f8a36e22 2021-08-26 stsp new = recallocarray(*ids, *nalloc, *nalloc + alloc_chunksz,
202 f8a36e22 2021-08-26 stsp sizeof(struct got_object_id));
203 f8a36e22 2021-08-26 stsp if (new == NULL)
204 f8a36e22 2021-08-26 stsp return got_error_from_errno("recallocarray");
206 f8a36e22 2021-08-26 stsp *ids = new;
207 f8a36e22 2021-08-26 stsp *nalloc += alloc_chunksz;
208 f8a36e22 2021-08-26 stsp return NULL;
211 f8a36e22 2021-08-26 stsp static struct got_reference *
212 f8a36e22 2021-08-26 stsp find_ref(struct got_reflist_head *refs, const char *refname)
214 f8a36e22 2021-08-26 stsp struct got_reflist_entry *re;
216 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, refs, entry) {
217 f8a36e22 2021-08-26 stsp if (got_path_cmp(got_ref_get_name(re->ref), refname,
218 f8a36e22 2021-08-26 stsp strlen(got_ref_get_name(re->ref)),
219 f8a36e22 2021-08-26 stsp strlen(refname)) == 0) {
220 f8a36e22 2021-08-26 stsp return re->ref;
224 f8a36e22 2021-08-26 stsp return NULL;
227 f8a36e22 2021-08-26 stsp static struct got_pathlist_entry *
228 f8a36e22 2021-08-26 stsp find_their_ref(struct got_pathlist_head *their_refs, const char *refname)
230 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
232 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, their_refs, entry) {
233 f8a36e22 2021-08-26 stsp const char *their_refname = pe->path;
234 f8a36e22 2021-08-26 stsp if (got_path_cmp(their_refname, refname,
235 f8a36e22 2021-08-26 stsp strlen(their_refname), strlen(refname)) == 0) {
240 f8a36e22 2021-08-26 stsp return NULL;
243 f8a36e22 2021-08-26 stsp static const struct got_error *
244 f8a36e22 2021-08-26 stsp get_remote_refname(char **remote_refname, const char *remote_name,
245 f8a36e22 2021-08-26 stsp const char *refname)
247 f8a36e22 2021-08-26 stsp if (strncmp(refname, "refs/", 5) == 0)
248 f8a36e22 2021-08-26 stsp refname += 5;
249 f8a36e22 2021-08-26 stsp if (strncmp(refname, "heads/", 6) == 0)
250 f8a36e22 2021-08-26 stsp refname += 6;
252 f8a36e22 2021-08-26 stsp if (asprintf(remote_refname, "refs/remotes/%s/%s",
253 f8a36e22 2021-08-26 stsp remote_name, refname) == -1)
254 f8a36e22 2021-08-26 stsp return got_error_from_errno("asprintf");
256 f8a36e22 2021-08-26 stsp return NULL;
259 f8a36e22 2021-08-26 stsp static const struct got_error *
260 f8a36e22 2021-08-26 stsp update_remote_ref(struct got_reference *my_ref, const char *remote_name,
261 f8a36e22 2021-08-26 stsp struct got_repository *repo)
263 f8a36e22 2021-08-26 stsp const struct got_error *err, *unlock_err;
264 f8a36e22 2021-08-26 stsp struct got_object_id *my_id;
265 f8a36e22 2021-08-26 stsp struct got_reference *ref = NULL;
266 f8a36e22 2021-08-26 stsp char *remote_refname = NULL;
267 f8a36e22 2021-08-26 stsp int ref_locked = 0;
269 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
271 f8a36e22 2021-08-26 stsp return err;
273 f8a36e22 2021-08-26 stsp err = get_remote_refname(&remote_refname, remote_name,
274 f8a36e22 2021-08-26 stsp got_ref_get_name(my_ref));
278 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, remote_refname, 1 /* lock */);
280 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NOT_REF)
282 f8a36e22 2021-08-26 stsp err = got_ref_alloc(&ref, remote_refname, my_id);
286 f8a36e22 2021-08-26 stsp ref_locked = 1;
287 f8a36e22 2021-08-26 stsp err = got_ref_change_ref(ref, my_id);
292 f8a36e22 2021-08-26 stsp err = got_ref_write(ref, repo);
295 f8a36e22 2021-08-26 stsp if (ref_locked) {
296 f8a36e22 2021-08-26 stsp unlock_err = got_ref_unlock(ref);
297 f8a36e22 2021-08-26 stsp if (unlock_err && err == NULL)
298 f8a36e22 2021-08-26 stsp err = unlock_err;
300 f8a36e22 2021-08-26 stsp got_ref_close(ref);
302 f8a36e22 2021-08-26 stsp free(my_id);
303 f8a36e22 2021-08-26 stsp free(remote_refname);
304 f8a36e22 2021-08-26 stsp return err;
307 f8a36e22 2021-08-26 stsp const struct got_error*
308 f8a36e22 2021-08-26 stsp got_send_pack(const char *remote_name, struct got_pathlist_head *branch_names,
309 f8a36e22 2021-08-26 stsp struct got_pathlist_head *tag_names,
310 f8a36e22 2021-08-26 stsp struct got_pathlist_head *delete_branches,
311 f8a36e22 2021-08-26 stsp int verbosity, int overwrite_refs, int sendfd,
312 f8a36e22 2021-08-26 stsp struct got_repository *repo, got_send_progress_cb progress_cb,
313 f8a36e22 2021-08-26 stsp void *progress_arg, got_cancel_cb cancel_cb, void *cancel_arg)
315 f8a36e22 2021-08-26 stsp int imsg_sendfds[2];
316 f8a36e22 2021-08-26 stsp int npackfd = -1, nsendfd = -1;
317 f8a36e22 2021-08-26 stsp int sendstatus, done = 0;
318 f8a36e22 2021-08-26 stsp const struct got_error *err;
319 f8a36e22 2021-08-26 stsp struct imsgbuf sendibuf;
320 f8a36e22 2021-08-26 stsp pid_t sendpid = -1;
321 f8a36e22 2021-08-26 stsp struct got_reflist_head refs;
322 f8a36e22 2021-08-26 stsp struct got_pathlist_head have_refs;
323 f8a36e22 2021-08-26 stsp struct got_pathlist_head their_refs;
324 f8a36e22 2021-08-26 stsp struct got_pathlist_entry *pe;
325 f8a36e22 2021-08-26 stsp struct got_reflist_entry *re;
326 f8a36e22 2021-08-26 stsp struct got_object_id **our_ids = NULL;
327 f8a36e22 2021-08-26 stsp struct got_object_id **their_ids = NULL;
328 f8a36e22 2021-08-26 stsp int i, nours = 0, ntheirs = 0;
329 f8a36e22 2021-08-26 stsp size_t nalloc_ours = 0, nalloc_theirs = 0;
330 27b75514 2021-08-28 stsp int refs_to_send = 0, refs_to_delete = 0;
331 f8a36e22 2021-08-26 stsp off_t bytes_sent = 0;
332 f8a36e22 2021-08-26 stsp struct pack_progress_arg ppa;
333 f8a36e22 2021-08-26 stsp uint8_t packsha1[SHA1_DIGEST_LENGTH];
334 f8a36e22 2021-08-26 stsp FILE *packfile = NULL;
336 f8a36e22 2021-08-26 stsp TAILQ_INIT(&refs);
337 f8a36e22 2021-08-26 stsp TAILQ_INIT(&have_refs);
338 f8a36e22 2021-08-26 stsp TAILQ_INIT(&their_refs);
340 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, branch_names, entry) {
341 f8a36e22 2021-08-26 stsp const char *branchname = pe->path;
342 f8a36e22 2021-08-26 stsp if (strncmp(branchname, "refs/heads/", 11) != 0) {
344 f8a36e22 2021-08-26 stsp if (asprintf(&s, "refs/heads/%s", branchname) == -1) {
345 f8a36e22 2021-08-26 stsp err = got_error_from_errno("asprintf");
348 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, s, repo);
351 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, branchname, repo);
357 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, delete_branches, entry) {
358 f8a36e22 2021-08-26 stsp const char *branchname = pe->path;
359 f8a36e22 2021-08-26 stsp struct got_reference *ref;
360 f8a36e22 2021-08-26 stsp if (strncmp(branchname, "refs/heads/", 11) != 0) {
361 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_DELETE_REF, "%s",
362 f8a36e22 2021-08-26 stsp branchname);
365 f8a36e22 2021-08-26 stsp ref = find_ref(&refs, branchname);
367 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_DELETE_REF,
368 f8a36e22 2021-08-26 stsp "changes on %s will be sent to server",
369 f8a36e22 2021-08-26 stsp branchname);
374 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, tag_names, entry) {
375 f8a36e22 2021-08-26 stsp const char *tagname = pe->path;
376 f8a36e22 2021-08-26 stsp if (strncmp(tagname, "refs/tags/", 10) != 0) {
378 f8a36e22 2021-08-26 stsp if (asprintf(&s, "refs/tags/%s", tagname) == -1) {
379 f8a36e22 2021-08-26 stsp err = got_error_from_errno("asprintf");
382 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, s, repo);
385 f8a36e22 2021-08-26 stsp err = insert_ref(&refs, tagname, repo);
391 f8a36e22 2021-08-26 stsp if (TAILQ_EMPTY(&refs) && TAILQ_EMPTY(delete_branches)) {
392 f8a36e22 2021-08-26 stsp err = got_error(GOT_ERR_SEND_EMPTY);
396 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
397 f8a36e22 2021-08-26 stsp struct got_object_id *id;
398 f8a36e22 2021-08-26 stsp int obj_type;
400 f8a36e22 2021-08-26 stsp if (got_ref_is_symbolic(re->ref)) {
401 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_BAD_REF_TYPE,
402 f8a36e22 2021-08-26 stsp "cannot send symbolic reference %s",
403 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref));
407 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&id, repo, re->ref);
410 f8a36e22 2021-08-26 stsp err = got_object_get_type(&obj_type, repo, id);
414 f8a36e22 2021-08-26 stsp switch (obj_type) {
415 f8a36e22 2021-08-26 stsp case GOT_OBJ_TYPE_COMMIT:
416 f8a36e22 2021-08-26 stsp case GOT_OBJ_TYPE_TAG:
419 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_OBJ_TYPE,
420 f8a36e22 2021-08-26 stsp "cannot send %s", got_ref_get_name(re->ref));
425 f8a36e22 2021-08-26 stsp packfile = got_opentemp();
426 f8a36e22 2021-08-26 stsp if (packfile == NULL) {
427 f8a36e22 2021-08-26 stsp err = got_error_from_errno("got_opentemp");
431 f8a36e22 2021-08-26 stsp if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_sendfds) == -1) {
432 f8a36e22 2021-08-26 stsp err = got_error_from_errno("socketpair");
436 f8a36e22 2021-08-26 stsp sendpid = fork();
437 f8a36e22 2021-08-26 stsp if (sendpid == -1) {
438 f8a36e22 2021-08-26 stsp err = got_error_from_errno("fork");
440 f8a36e22 2021-08-26 stsp } else if (sendpid == 0){
441 f8a36e22 2021-08-26 stsp got_privsep_exec_child(imsg_sendfds,
442 f8a36e22 2021-08-26 stsp GOT_PATH_PROG_SEND_PACK, got_repo_get_path(repo));
445 f8a36e22 2021-08-26 stsp if (close(imsg_sendfds[1]) == -1) {
446 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
449 f8a36e22 2021-08-26 stsp imsg_init(&sendibuf, imsg_sendfds[0]);
450 f8a36e22 2021-08-26 stsp nsendfd = dup(sendfd);
451 f8a36e22 2021-08-26 stsp if (nsendfd == -1) {
452 f8a36e22 2021-08-26 stsp err = got_error_from_errno("dup");
457 f8a36e22 2021-08-26 stsp * Convert reflist to pathlist since the privsep layer
458 f8a36e22 2021-08-26 stsp * is linked into helper programs which lack reference.c.
460 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
461 f8a36e22 2021-08-26 stsp struct got_object_id *id;
462 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&id, repo, re->ref);
465 f8a36e22 2021-08-26 stsp err = got_pathlist_append(&have_refs,
466 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref), id);
470 f8a36e22 2021-08-26 stsp * Also prepare the array of our object IDs which
471 f8a36e22 2021-08-26 stsp * will be needed for generating a pack file.
473 535e07c7 2021-08-29 naddy err = realloc_ids(&our_ids, &nalloc_ours, nours + 1);
476 f8a36e22 2021-08-26 stsp our_ids[nours] = id;
480 f8a36e22 2021-08-26 stsp err = got_privsep_send_send_req(&sendibuf, nsendfd, &have_refs,
481 f8a36e22 2021-08-26 stsp delete_branches, verbosity);
484 f8a36e22 2021-08-26 stsp nsendfd = -1;
486 f8a36e22 2021-08-26 stsp err = got_privsep_recv_send_remote_refs(&their_refs, &sendibuf);
491 f8a36e22 2021-08-26 stsp * Process references reported by the server.
492 f8a36e22 2021-08-26 stsp * Push appropriate object IDs onto the "their IDs" array.
493 f8a36e22 2021-08-26 stsp * This array will be used to exclude objects which already
494 f8a36e22 2021-08-26 stsp * exist on the server from our pack file.
496 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(pe, &their_refs, entry) {
497 f8a36e22 2021-08-26 stsp const char *refname = pe->path;
498 f8a36e22 2021-08-26 stsp struct got_object_id *their_id = pe->data;
499 f8a36e22 2021-08-26 stsp int have_their_id;
500 f8a36e22 2021-08-26 stsp struct got_object *obj;
501 f8a36e22 2021-08-26 stsp struct got_reference *my_ref = NULL;
502 f8a36e22 2021-08-26 stsp int is_tag = 0;
504 f8a36e22 2021-08-26 stsp /* Don't blindly trust the server to send us valid names. */
505 f8a36e22 2021-08-26 stsp if (!got_ref_name_is_valid(refname))
508 4064588e 2021-10-17 thomas if (strncmp(refname, "refs/tags/", 10) == 0)
509 4064588e 2021-10-17 thomas is_tag = 1;
511 f8a36e22 2021-08-26 stsp * Find out whether this is a reference we want to upload.
512 f8a36e22 2021-08-26 stsp * Otherwise we can still use this reference as a hint to
513 f8a36e22 2021-08-26 stsp * avoid uploading any objects the server already has.
515 f8a36e22 2021-08-26 stsp my_ref = find_ref(&refs, refname);
516 f8a36e22 2021-08-26 stsp if (my_ref) {
517 c2105d00 2021-09-14 stsp struct got_object_id *my_id;
518 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
521 4064588e 2021-10-17 thomas if (got_object_id_cmp(my_id, their_id) != 0) {
522 4064588e 2021-10-17 thomas if (!overwrite_refs && is_tag) {
523 4064588e 2021-10-17 thomas err = got_error_fmt(
524 4064588e 2021-10-17 thomas GOT_ERR_SEND_TAG_EXISTS,
525 4064588e 2021-10-17 thomas "%s", refname);
526 4064588e 2021-10-17 thomas free(my_id);
527 4064588e 2021-10-17 thomas goto done;
529 c2105d00 2021-09-14 stsp refs_to_send++;
531 c2105d00 2021-09-14 stsp free(my_id);
534 f8a36e22 2021-08-26 stsp /* Check if their object exists locally. */
535 f8a36e22 2021-08-26 stsp err = got_object_open(&obj, repo, their_id);
537 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NO_OBJ)
539 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref != NULL) {
540 f8a36e22 2021-08-26 stsp err = got_error_fmt(GOT_ERR_SEND_ANCESTRY,
541 f8a36e22 2021-08-26 stsp "%s", refname);
544 f8a36e22 2021-08-26 stsp have_their_id = 0;
546 f8a36e22 2021-08-26 stsp got_object_close(obj);
547 f8a36e22 2021-08-26 stsp have_their_id = 1;
550 535e07c7 2021-08-29 naddy err = realloc_ids(&their_ids, &nalloc_theirs, ntheirs + 1);
554 f8a36e22 2021-08-26 stsp if (have_their_id) {
555 f8a36e22 2021-08-26 stsp /* Enforce linear ancestry if required. */
556 f8a36e22 2021-08-26 stsp if (!overwrite_refs && my_ref && !is_tag) {
557 f8a36e22 2021-08-26 stsp struct got_object_id *my_id;
558 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&my_id, repo, my_ref);
561 f8a36e22 2021-08-26 stsp err = check_linear_ancestry(refname, my_id,
562 f8a36e22 2021-08-26 stsp their_id, repo, cancel_cb, cancel_arg);
563 f8a36e22 2021-08-26 stsp free(my_id);
564 f8a36e22 2021-08-26 stsp my_id = NULL;
568 f8a36e22 2021-08-26 stsp /* Exclude any objects reachable via their ID. */
569 f8a36e22 2021-08-26 stsp their_ids[ntheirs] = got_object_id_dup(their_id);
570 f8a36e22 2021-08-26 stsp if (their_ids[ntheirs] == NULL) {
571 f8a36e22 2021-08-26 stsp err = got_error_from_errno("got_object_id_dup");
575 f8a36e22 2021-08-26 stsp } else if (!is_tag) {
576 f8a36e22 2021-08-26 stsp char *remote_refname;
577 f8a36e22 2021-08-26 stsp struct got_reference *ref;
579 f8a36e22 2021-08-26 stsp * Exclude any objects which exist on the server
580 f8a36e22 2021-08-26 stsp * according to a locally cached remote reference.
582 f8a36e22 2021-08-26 stsp err = get_remote_refname(&remote_refname,
583 f8a36e22 2021-08-26 stsp remote_name, refname);
586 f8a36e22 2021-08-26 stsp err = got_ref_open(&ref, repo, remote_refname, 0);
587 f8a36e22 2021-08-26 stsp free(remote_refname);
589 f8a36e22 2021-08-26 stsp if (err->code != GOT_ERR_NOT_REF)
592 f8a36e22 2021-08-26 stsp err = got_ref_resolve(&their_ids[ntheirs],
593 f8a36e22 2021-08-26 stsp repo, ref);
594 f8a36e22 2021-08-26 stsp got_ref_close(ref);
602 f8a36e22 2021-08-26 stsp /* Account for any new references we are going to upload. */
603 f8a36e22 2021-08-26 stsp TAILQ_FOREACH(re, &refs, entry) {
604 f8a36e22 2021-08-26 stsp if (find_their_ref(&their_refs,
605 f8a36e22 2021-08-26 stsp got_ref_get_name(re->ref)) == NULL)
606 f8a36e22 2021-08-26 stsp refs_to_send++;
609 1bd76734 2021-08-26 stsp /* Account for any existing references we are going to delete. */
610 1bd76734 2021-08-26 stsp TAILQ_FOREACH(pe, delete_branches, entry) {
611 1bd76734 2021-08-26 stsp const char *branchname = pe->path;
612 1bd76734 2021-08-26 stsp if (find_their_ref(&their_refs, branchname))
613 27b75514 2021-08-28 stsp refs_to_delete++;
616 27b75514 2021-08-28 stsp if (refs_to_send == 0 && refs_to_delete == 0) {
617 f8a36e22 2021-08-26 stsp got_privsep_send_stop(imsg_sendfds[0]);
621 27b75514 2021-08-28 stsp if (refs_to_send > 0) {
622 27b75514 2021-08-28 stsp memset(&ppa, 0, sizeof(ppa));
623 27b75514 2021-08-28 stsp ppa.progress_cb = progress_cb;
624 27b75514 2021-08-28 stsp ppa.progress_arg = progress_arg;
625 27b75514 2021-08-28 stsp err = got_pack_create(packsha1, packfile, their_ids, ntheirs,
626 27b75514 2021-08-28 stsp our_ids, nours, repo, 0, 1, pack_progress, &ppa,
627 27b75514 2021-08-28 stsp cancel_cb, cancel_arg);
631 27b75514 2021-08-28 stsp if (fflush(packfile) == -1) {
632 27b75514 2021-08-28 stsp err = got_error_from_errno("fflush");
636 27b75514 2021-08-28 stsp npackfd = dup(fileno(packfile));
637 27b75514 2021-08-28 stsp if (npackfd == -1) {
638 27b75514 2021-08-28 stsp err = got_error_from_errno("dup");
641 27b75514 2021-08-28 stsp err = got_privsep_send_packfd(&sendibuf, npackfd);
642 27b75514 2021-08-28 stsp if (err != NULL)
644 27b75514 2021-08-28 stsp npackfd = -1;
646 27b75514 2021-08-28 stsp err = got_privsep_send_packfd(&sendibuf, -1);
647 27b75514 2021-08-28 stsp if (err != NULL)
651 f8a36e22 2021-08-26 stsp while (!done) {
652 f8a36e22 2021-08-26 stsp int success = 0;
653 f8a36e22 2021-08-26 stsp char *refname = NULL;
654 f8a36e22 2021-08-26 stsp off_t bytes_sent_cur = 0;
655 f8a36e22 2021-08-26 stsp if (cancel_cb) {
656 f8a36e22 2021-08-26 stsp err = (*cancel_cb)(cancel_arg);
660 f8a36e22 2021-08-26 stsp err = got_privsep_recv_send_progress(&done, &bytes_sent,
661 f8a36e22 2021-08-26 stsp &success, &refname, &sendibuf);
664 f8a36e22 2021-08-26 stsp if (refname && got_ref_name_is_valid(refname) && success &&
665 f8a36e22 2021-08-26 stsp strncmp(refname, "refs/tags/", 10) != 0) {
666 f8a36e22 2021-08-26 stsp struct got_reference *my_ref;
668 f8a36e22 2021-08-26 stsp * The server has accepted our changes.
669 f8a36e22 2021-08-26 stsp * Update our reference in refs/remotes/ accordingly.
671 f8a36e22 2021-08-26 stsp my_ref = find_ref(&refs, refname);
672 f8a36e22 2021-08-26 stsp if (my_ref) {
673 f8a36e22 2021-08-26 stsp err = update_remote_ref(my_ref, remote_name,
679 f8a36e22 2021-08-26 stsp if (refname != NULL ||
680 f8a36e22 2021-08-26 stsp bytes_sent_cur != bytes_sent) {
681 f8a36e22 2021-08-26 stsp err = progress_cb(progress_arg, ppa.packfile_size,
682 f8a36e22 2021-08-26 stsp ppa.ncommits, ppa.nobj_total, ppa.nobj_deltify,
683 f8a36e22 2021-08-26 stsp ppa.nobj_written, bytes_sent,
684 f8a36e22 2021-08-26 stsp refname, success);
686 f8a36e22 2021-08-26 stsp free(refname);
689 f8a36e22 2021-08-26 stsp bytes_sent_cur = bytes_sent;
691 f8a36e22 2021-08-26 stsp free(refname);
694 f8a36e22 2021-08-26 stsp if (sendpid != -1) {
696 f8a36e22 2021-08-26 stsp got_privsep_send_stop(imsg_sendfds[0]);
697 f8a36e22 2021-08-26 stsp if (waitpid(sendpid, &sendstatus, 0) == -1 && err == NULL)
698 f8a36e22 2021-08-26 stsp err = got_error_from_errno("waitpid");
700 f8a36e22 2021-08-26 stsp if (packfile && fclose(packfile) == EOF && err == NULL)
701 f8a36e22 2021-08-26 stsp err = got_error_from_errno("fclose");
702 f8a36e22 2021-08-26 stsp if (nsendfd != -1 && close(nsendfd) == -1 && err == NULL)
703 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
704 f8a36e22 2021-08-26 stsp if (npackfd != -1 && close(npackfd) == -1 && err == NULL)
705 f8a36e22 2021-08-26 stsp err = got_error_from_errno("close");
707 f8a36e22 2021-08-26 stsp got_ref_list_free(&refs);
708 f8a36e22 2021-08-26 stsp got_pathlist_free(&have_refs);
709 f8a36e22 2021-08-26 stsp got_pathlist_free(&their_refs);
710 f8a36e22 2021-08-26 stsp for (i = 0; i < nours; i++)
711 f8a36e22 2021-08-26 stsp free(our_ids[i]);
712 f8a36e22 2021-08-26 stsp free(our_ids);
713 f8a36e22 2021-08-26 stsp for (i = 0; i < ntheirs; i++)
714 f8a36e22 2021-08-26 stsp free(their_ids[i]);
715 f8a36e22 2021-08-26 stsp free(their_ids);
716 f8a36e22 2021-08-26 stsp return err;
