1 f8a36e22 2021-08-26 stsp /*
  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>
  4 f8a36e22 2021-08-26 stsp  *
  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.
  8 f8a36e22 2021-08-26 stsp  *
  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.
 16 f8a36e22 2021-08-26 stsp  */
 17 4fccd2fe 2023-03-08 thomas 
 18 4fccd2fe 2023-03-08 thomas #include "got_compat.h"
 19 f8a36e22 2021-08-26 stsp 
 20 f8a36e22 2021-08-26 stsp #include <sys/types.h>
 21 f8a36e22 2021-08-26 stsp #include <sys/stat.h>
 22 8b925c6c 2022-07-16 thomas #include <sys/queue.h>
 23 f8a36e22 2021-08-26 stsp #include <sys/uio.h>
 24 f8a36e22 2021-08-26 stsp #include <sys/socket.h>
 25 f8a36e22 2021-08-26 stsp #include <sys/wait.h>
 26 f8a36e22 2021-08-26 stsp #include <sys/resource.h>
 27 f8a36e22 2021-08-26 stsp #include <sys/socket.h>
 28 f8a36e22 2021-08-26 stsp 
 29 f8a36e22 2021-08-26 stsp #include <errno.h>
 30 f8a36e22 2021-08-26 stsp #include <err.h>
 31 f8a36e22 2021-08-26 stsp #include <fcntl.h>
 32 f8a36e22 2021-08-26 stsp #include <stdio.h>
 33 f8a36e22 2021-08-26 stsp #include <stdlib.h>
 34 f8a36e22 2021-08-26 stsp #include <string.h>
 35 f8a36e22 2021-08-26 stsp #include <stdint.h>
 36 f8a36e22 2021-08-26 stsp #include <unistd.h>
 37 f8a36e22 2021-08-26 stsp #include <zlib.h>
 38 f8a36e22 2021-08-26 stsp #include <ctype.h>
 39 f8a36e22 2021-08-26 stsp #include <limits.h>
 40 f8a36e22 2021-08-26 stsp #include <time.h>
 41 f8a36e22 2021-08-26 stsp 
 42 f8a36e22 2021-08-26 stsp #include "got_error.h"
 43 f8a36e22 2021-08-26 stsp #include "got_reference.h"
 44 f8a36e22 2021-08-26 stsp #include "got_repository.h"
 45 f8a36e22 2021-08-26 stsp #include "got_path.h"
 46 f8a36e22 2021-08-26 stsp #include "got_cancel.h"
 47 f8a36e22 2021-08-26 stsp #include "got_worktree.h"
 48 f8a36e22 2021-08-26 stsp #include "got_object.h"
 49 f8a36e22 2021-08-26 stsp #include "got_opentemp.h"
 50 f8a36e22 2021-08-26 stsp #include "got_send.h"
 51 f8a36e22 2021-08-26 stsp #include "got_repository_admin.h"
 52 f8a36e22 2021-08-26 stsp #include "got_commit_graph.h"
 53 f8a36e22 2021-08-26 stsp 
 54 f8a36e22 2021-08-26 stsp #include "got_lib_delta.h"
 55 f8a36e22 2021-08-26 stsp #include "got_lib_inflate.h"
 56 f8a36e22 2021-08-26 stsp #include "got_lib_object.h"
 57 f8a36e22 2021-08-26 stsp #include "got_lib_object_parse.h"
 58 f8a36e22 2021-08-26 stsp #include "got_lib_object_create.h"
 59 f8a36e22 2021-08-26 stsp #include "got_lib_pack.h"
 60 be288a59 2023-02-23 thomas #include "got_lib_hash.h"
 61 f8a36e22 2021-08-26 stsp #include "got_lib_privsep.h"
 62 f8a36e22 2021-08-26 stsp #include "got_lib_object_cache.h"
 63 f8a36e22 2021-08-26 stsp #include "got_lib_repository.h"
 64 abd46894 2022-10-18 thomas #include "got_lib_ratelimit.h"
 65 f8a36e22 2021-08-26 stsp #include "got_lib_pack_create.h"
 66 d65a88a2 2021-09-05 stsp #include "got_lib_dial.h"
 67 f8a36e22 2021-08-26 stsp 
 68 f8a36e22 2021-08-26 stsp #ifndef nitems
 69 f8a36e22 2021-08-26 stsp #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
 70 f8a36e22 2021-08-26 stsp #endif
 71 f8a36e22 2021-08-26 stsp 
 72 f8a36e22 2021-08-26 stsp #ifndef ssizeof
 73 f8a36e22 2021-08-26 stsp #define ssizeof(_x) ((ssize_t)(sizeof(_x)))
 74 f8a36e22 2021-08-26 stsp #endif
 75 f8a36e22 2021-08-26 stsp 
 76 f8a36e22 2021-08-26 stsp #ifndef MIN
 77 f8a36e22 2021-08-26 stsp #define	MIN(_a,_b) ((_a) < (_b) ? (_a) : (_b))
 78 f8a36e22 2021-08-26 stsp #endif
 79 f8a36e22 2021-08-26 stsp 
 80 f8a36e22 2021-08-26 stsp const struct got_error *
 81 f8a36e22 2021-08-26 stsp got_send_connect(pid_t *sendpid, int *sendfd, const char *proto,
 82 f8a36e22 2021-08-26 stsp     const char *host, const char *port, const char *server_path, int verbosity)
 83 f8a36e22 2021-08-26 stsp {
 84 f8a36e22 2021-08-26 stsp 	const struct got_error *err = NULL;
 85 f8a36e22 2021-08-26 stsp 
 86 f8a36e22 2021-08-26 stsp 	*sendpid = -1;
 87 f8a36e22 2021-08-26 stsp 	*sendfd = -1;
 88 f8a36e22 2021-08-26 stsp 
 89 f8a36e22 2021-08-26 stsp 	if (strcmp(proto, "ssh") == 0 || strcmp(proto, "git+ssh") == 0)
 90 d65a88a2 2021-09-05 stsp 		err = got_dial_ssh(sendpid, sendfd, host, port, server_path,
 91 d65a88a2 2021-09-05 stsp 		    GOT_DIAL_DIRECTION_SEND, verbosity);
 92 f8a36e22 2021-08-26 stsp 	else if (strcmp(proto, "git") == 0)
 93 d65a88a2 2021-09-05 stsp 		err = got_dial_git(sendfd, host, port, server_path,
 94 d65a88a2 2021-09-05 stsp 		    GOT_DIAL_DIRECTION_SEND);
 95 f8a36e22 2021-08-26 stsp 	else if (strcmp(proto, "http") == 0 || strcmp(proto, "git+http") == 0)
 96 f8a36e22 2021-08-26 stsp 		err = got_error_path(proto, GOT_ERR_NOT_IMPL);
 97 f8a36e22 2021-08-26 stsp 	else
 98 f8a36e22 2021-08-26 stsp 		err = got_error_path(proto, GOT_ERR_BAD_PROTO);
 99 f8a36e22 2021-08-26 stsp 	return err;
100 f8a36e22 2021-08-26 stsp }
101 f8a36e22 2021-08-26 stsp 
102 f8a36e22 2021-08-26 stsp struct pack_progress_arg {
103 f8a36e22 2021-08-26 stsp     got_send_progress_cb progress_cb;
104 f8a36e22 2021-08-26 stsp     void *progress_arg;
105 f8a36e22 2021-08-26 stsp 
106 85220b0e 2022-03-22 thomas     int ncolored;
107 85220b0e 2022-03-22 thomas     int nfound;
108 85220b0e 2022-03-22 thomas     int ntrees;
109 f8a36e22 2021-08-26 stsp     off_t packfile_size;
110 f8a36e22 2021-08-26 stsp     int ncommits;
111 f8a36e22 2021-08-26 stsp     int nobj_total;
112 f8a36e22 2021-08-26 stsp     int nobj_deltify;
113 f8a36e22 2021-08-26 stsp     int nobj_written;
114 f8a36e22 2021-08-26 stsp };
115 f8a36e22 2021-08-26 stsp 
116 f8a36e22 2021-08-26 stsp static const struct got_error *
117 85220b0e 2022-03-22 thomas pack_progress(void *arg, int ncolored, int nfound, int ntrees,
118 85220b0e 2022-03-22 thomas     off_t packfile_size, int ncommits, int nobj_total, int nobj_deltify,
119 85220b0e 2022-03-22 thomas     int nobj_written)
120 f8a36e22 2021-08-26 stsp {
121 f8a36e22 2021-08-26 stsp 	const struct got_error *err;
122 f8a36e22 2021-08-26 stsp 	struct pack_progress_arg *a = arg;
123 f8a36e22 2021-08-26 stsp 
124 85220b0e 2022-03-22 thomas 	err = a->progress_cb(a->progress_arg, ncolored, nfound, ntrees,
125 85220b0e 2022-03-22 thomas 	    packfile_size, ncommits, nobj_total, nobj_deltify,
126 3fe5d0fe 2022-11-17 thomas 	    nobj_written, 0, NULL, NULL, 0);
127 f8a36e22 2021-08-26 stsp 	if (err)
128 f8a36e22 2021-08-26 stsp 		return err;
129 f8a36e22 2021-08-26 stsp 
130 85220b0e 2022-03-22 thomas 	a->ncolored= ncolored;
131 85220b0e 2022-03-22 thomas 	a->nfound = nfound;
132 85220b0e 2022-03-22 thomas 	a->ntrees = ntrees;
133 f8a36e22 2021-08-26 stsp 	a->packfile_size = packfile_size;
134 f8a36e22 2021-08-26 stsp 	a->ncommits = ncommits;
135 f8a36e22 2021-08-26 stsp 	a->nobj_total = nobj_total;
136 f8a36e22 2021-08-26 stsp 	a->nobj_deltify = nobj_deltify;
137 f8a36e22 2021-08-26 stsp 	a->nobj_written = nobj_written;
138 f8a36e22 2021-08-26 stsp 	return NULL;
139 f8a36e22 2021-08-26 stsp }
140 f8a36e22 2021-08-26 stsp 
141 f8a36e22 2021-08-26 stsp static const struct got_error *
142 f8a36e22 2021-08-26 stsp insert_ref(struct got_reflist_head *refs, const char *refname,
143 f8a36e22 2021-08-26 stsp     struct got_repository *repo)
144 f8a36e22 2021-08-26 stsp {
145 f8a36e22 2021-08-26 stsp 	const struct got_error *err;
146 f8a36e22 2021-08-26 stsp 	struct got_reference *ref;
147 f8a36e22 2021-08-26 stsp 	struct got_reflist_entry *new;
148 f8a36e22 2021-08-26 stsp 
149 f8a36e22 2021-08-26 stsp 	err = got_ref_open(&ref, repo, refname, 0);
150 f8a36e22 2021-08-26 stsp 	if (err)
151 f8a36e22 2021-08-26 stsp 		return err;
152 f8a36e22 2021-08-26 stsp 
153 f8a36e22 2021-08-26 stsp 	err = got_reflist_insert(&new, refs, ref, got_ref_cmp_by_name, NULL);
154 f8a36e22 2021-08-26 stsp 	if (err || new == NULL /* duplicate */)
155 f8a36e22 2021-08-26 stsp 		got_ref_close(ref);
156 f8a36e22 2021-08-26 stsp 
157 f8a36e22 2021-08-26 stsp 	return err;
158 f8a36e22 2021-08-26 stsp }
159 f8a36e22 2021-08-26 stsp 
160 f8a36e22 2021-08-26 stsp static const struct got_error *
161 f8a36e22 2021-08-26 stsp check_linear_ancestry(const char *refname, struct got_object_id *my_id,
162 f8a36e22 2021-08-26 stsp     struct got_object_id *their_id, struct got_repository *repo,
163 f8a36e22 2021-08-26 stsp     got_cancel_cb cancel_cb, void *cancel_arg)
164 f8a36e22 2021-08-26 stsp {
165 f8a36e22 2021-08-26 stsp 	const struct got_error *err = NULL;
166 f8a36e22 2021-08-26 stsp 	struct got_object_id *yca_id;
167 f8a36e22 2021-08-26 stsp 	int obj_type;
168 f8a36e22 2021-08-26 stsp 
169 f8a36e22 2021-08-26 stsp 	err = got_object_get_type(&obj_type, repo, their_id);
170 f8a36e22 2021-08-26 stsp 	if (err)
171 f8a36e22 2021-08-26 stsp 		return err;
172 f8a36e22 2021-08-26 stsp 	if (obj_type != GOT_OBJ_TYPE_COMMIT)
173 f8a36e22 2021-08-26 stsp 		return got_error_fmt(GOT_ERR_OBJ_TYPE,
174 f8a36e22 2021-08-26 stsp 		    "bad object type on server for %s", refname);
175 f8a36e22 2021-08-26 stsp 
176 f8a36e22 2021-08-26 stsp 	err = got_commit_graph_find_youngest_common_ancestor(&yca_id,
177 768705e3 2021-09-27 thomas 	    my_id, their_id, 1, repo, cancel_cb, cancel_arg);
178 f8a36e22 2021-08-26 stsp 	if (err)
179 f8a36e22 2021-08-26 stsp 		return err;
180 f8a36e22 2021-08-26 stsp 	if (yca_id == NULL)
181 f8a36e22 2021-08-26 stsp 		return got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
182 f8a36e22 2021-08-26 stsp 
183 f8a36e22 2021-08-26 stsp 	/*
184 f8a36e22 2021-08-26 stsp 	 * Require a straight line of history between the two commits,
185 f8a36e22 2021-08-26 stsp 	 * with their commit being older than my commit.
186 f8a36e22 2021-08-26 stsp 	 *
187 f8a36e22 2021-08-26 stsp 	 * Non-linear situations such as this require a rebase:
188 f8a36e22 2021-08-26 stsp 	 *
189 f8a36e22 2021-08-26 stsp 	 * (theirs) D       F (mine)
190 f8a36e22 2021-08-26 stsp 	 *           \     /
191 f8a36e22 2021-08-26 stsp 	 *            C   E
192 f8a36e22 2021-08-26 stsp 	 *             \ /
193 f8a36e22 2021-08-26 stsp 	 *              B (yca)
194 f8a36e22 2021-08-26 stsp 	 *              |
195 f8a36e22 2021-08-26 stsp 	 *              A
196 f8a36e22 2021-08-26 stsp 	 */
197 f8a36e22 2021-08-26 stsp 	if (got_object_id_cmp(their_id, yca_id) != 0)
198 f8a36e22 2021-08-26 stsp 		err = got_error_fmt(GOT_ERR_SEND_ANCESTRY, "%s", refname);
199 f8a36e22 2021-08-26 stsp 
200 f8a36e22 2021-08-26 stsp 	free(yca_id);
201 f8a36e22 2021-08-26 stsp 	return err;
202 f8a36e22 2021-08-26 stsp }
203 f8a36e22 2021-08-26 stsp 
204 f8a36e22 2021-08-26 stsp static const struct got_error *
205 f8a36e22 2021-08-26 stsp realloc_ids(struct got_object_id ***ids, size_t *nalloc, size_t n)
206 f8a36e22 2021-08-26 stsp {
207 f8a36e22 2021-08-26 stsp 	struct got_object_id **new;
208 f8a36e22 2021-08-26 stsp 	const size_t alloc_chunksz = 256;
209 f8a36e22 2021-08-26 stsp 
210 535e07c7 2021-08-29 naddy 	if (*nalloc >= n)
211 f8a36e22 2021-08-26 stsp 		return NULL;
212 f8a36e22 2021-08-26 stsp 
213 f8a36e22 2021-08-26 stsp 	new = recallocarray(*ids, *nalloc, *nalloc + alloc_chunksz,
214 f8a36e22 2021-08-26 stsp 	    sizeof(struct got_object_id));
215 f8a36e22 2021-08-26 stsp 	if (new == NULL)
216 f8a36e22 2021-08-26 stsp 		return got_error_from_errno("recallocarray");
217 f8a36e22 2021-08-26 stsp 
218 f8a36e22 2021-08-26 stsp 	*ids = new;
219 f8a36e22 2021-08-26 stsp 	*nalloc += alloc_chunksz;
220 f8a36e22 2021-08-26 stsp 	return NULL;
221 f8a36e22 2021-08-26 stsp }
222 f8a36e22 2021-08-26 stsp 
223 f8a36e22 2021-08-26 stsp static struct got_reference *
224 f8a36e22 2021-08-26 stsp find_ref(struct got_reflist_head *refs, const char *refname)
225 f8a36e22 2021-08-26 stsp {
226 f8a36e22 2021-08-26 stsp 	struct got_reflist_entry *re;
227 f8a36e22 2021-08-26 stsp 
228 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(re, refs, entry) {
229 f8a36e22 2021-08-26 stsp 		if (got_path_cmp(got_ref_get_name(re->ref), refname,
230 f8a36e22 2021-08-26 stsp 		    strlen(got_ref_get_name(re->ref)),
231 f8a36e22 2021-08-26 stsp 		    strlen(refname)) == 0) {
232 f8a36e22 2021-08-26 stsp 			return re->ref;
233 f8a36e22 2021-08-26 stsp 		}
234 f8a36e22 2021-08-26 stsp 	}
235 f8a36e22 2021-08-26 stsp 
236 f8a36e22 2021-08-26 stsp 	return NULL;
237 f8a36e22 2021-08-26 stsp }
238 f8a36e22 2021-08-26 stsp 
239 f8a36e22 2021-08-26 stsp static struct got_pathlist_entry *
240 f8a36e22 2021-08-26 stsp find_their_ref(struct got_pathlist_head *their_refs, const char *refname)
241 f8a36e22 2021-08-26 stsp {
242 f8a36e22 2021-08-26 stsp 	struct got_pathlist_entry *pe;
243 f8a36e22 2021-08-26 stsp 
244 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(pe, their_refs, entry) {
245 f8a36e22 2021-08-26 stsp 		const char *their_refname = pe->path;
246 f8a36e22 2021-08-26 stsp 		if (got_path_cmp(their_refname, refname,
247 f8a36e22 2021-08-26 stsp 		    strlen(their_refname), strlen(refname)) == 0) {
248 f8a36e22 2021-08-26 stsp 			return pe;
249 f8a36e22 2021-08-26 stsp 		}
250 f8a36e22 2021-08-26 stsp 	}
251 f8a36e22 2021-08-26 stsp 
252 f8a36e22 2021-08-26 stsp 	return NULL;
253 f8a36e22 2021-08-26 stsp }
254 f8a36e22 2021-08-26 stsp 
255 f8a36e22 2021-08-26 stsp static const struct got_error *
256 f8a36e22 2021-08-26 stsp get_remote_refname(char **remote_refname, const char *remote_name,
257 f8a36e22 2021-08-26 stsp     const char *refname)
258 f8a36e22 2021-08-26 stsp {
259 f8a36e22 2021-08-26 stsp 	if (strncmp(refname, "refs/", 5) == 0)
260 f8a36e22 2021-08-26 stsp 		refname += 5;
261 f8a36e22 2021-08-26 stsp 	if (strncmp(refname, "heads/", 6) == 0)
262 f8a36e22 2021-08-26 stsp 		refname += 6;
263 f8a36e22 2021-08-26 stsp 
264 f8a36e22 2021-08-26 stsp 	if (asprintf(remote_refname, "refs/remotes/%s/%s",
265 f8a36e22 2021-08-26 stsp 	    remote_name, refname) == -1)
266 f8a36e22 2021-08-26 stsp 		return got_error_from_errno("asprintf");
267 f8a36e22 2021-08-26 stsp 
268 f8a36e22 2021-08-26 stsp 	return NULL;
269 f8a36e22 2021-08-26 stsp }
270 f8a36e22 2021-08-26 stsp 
271 f8a36e22 2021-08-26 stsp static const struct got_error *
272 f8a36e22 2021-08-26 stsp update_remote_ref(struct got_reference *my_ref, const char *remote_name,
273 f8a36e22 2021-08-26 stsp     struct got_repository *repo)
274 f8a36e22 2021-08-26 stsp {
275 f8a36e22 2021-08-26 stsp 	const struct got_error *err, *unlock_err;
276 f8a36e22 2021-08-26 stsp 	struct got_object_id *my_id;
277 f8a36e22 2021-08-26 stsp 	struct got_reference *ref = NULL;
278 f8a36e22 2021-08-26 stsp 	char *remote_refname = NULL;
279 f8a36e22 2021-08-26 stsp 	int ref_locked = 0;
280 f8a36e22 2021-08-26 stsp 
281 f8a36e22 2021-08-26 stsp 	err = got_ref_resolve(&my_id, repo, my_ref);
282 f8a36e22 2021-08-26 stsp 	if (err)
283 f8a36e22 2021-08-26 stsp 		return err;
284 f8a36e22 2021-08-26 stsp 
285 f8a36e22 2021-08-26 stsp 	err = get_remote_refname(&remote_refname, remote_name,
286 f8a36e22 2021-08-26 stsp 	    got_ref_get_name(my_ref));
287 f8a36e22 2021-08-26 stsp 	if (err)
288 f8a36e22 2021-08-26 stsp 		goto done;
289 f8a36e22 2021-08-26 stsp 
290 f8a36e22 2021-08-26 stsp 	err = got_ref_open(&ref, repo, remote_refname, 1 /* lock */);
291 f8a36e22 2021-08-26 stsp 	if (err) {
292 f8a36e22 2021-08-26 stsp 		if (err->code != GOT_ERR_NOT_REF)
293 f8a36e22 2021-08-26 stsp 			goto done;
294 f8a36e22 2021-08-26 stsp 		err = got_ref_alloc(&ref, remote_refname, my_id);
295 f8a36e22 2021-08-26 stsp 		if (err)
296 f8a36e22 2021-08-26 stsp 			goto done;
297 f8a36e22 2021-08-26 stsp 	} else {
298 f8a36e22 2021-08-26 stsp 		ref_locked = 1;
299 f8a36e22 2021-08-26 stsp 		err = got_ref_change_ref(ref, my_id);
300 f8a36e22 2021-08-26 stsp 		if (err)
301 f8a36e22 2021-08-26 stsp 			goto done;
302 f8a36e22 2021-08-26 stsp 	}
303 f8a36e22 2021-08-26 stsp 
304 f8a36e22 2021-08-26 stsp 	err = got_ref_write(ref, repo);
305 f8a36e22 2021-08-26 stsp done:
306 f8a36e22 2021-08-26 stsp 	if (ref) {
307 f8a36e22 2021-08-26 stsp 		if (ref_locked) {
308 f8a36e22 2021-08-26 stsp 			unlock_err = got_ref_unlock(ref);
309 f8a36e22 2021-08-26 stsp 			if (unlock_err && err == NULL)
310 f8a36e22 2021-08-26 stsp 				err = unlock_err;
311 f8a36e22 2021-08-26 stsp 		}
312 f8a36e22 2021-08-26 stsp 		got_ref_close(ref);
313 f8a36e22 2021-08-26 stsp 	}
314 f8a36e22 2021-08-26 stsp 	free(my_id);
315 f8a36e22 2021-08-26 stsp 	free(remote_refname);
316 f8a36e22 2021-08-26 stsp 	return err;
317 f8a36e22 2021-08-26 stsp }
318 f8a36e22 2021-08-26 stsp 
319 f8a36e22 2021-08-26 stsp const struct got_error*
320 f8a36e22 2021-08-26 stsp got_send_pack(const char *remote_name, struct got_pathlist_head *branch_names,
321 f8a36e22 2021-08-26 stsp     struct got_pathlist_head *tag_names,
322 f8a36e22 2021-08-26 stsp     struct got_pathlist_head *delete_branches,
323 f8a36e22 2021-08-26 stsp     int verbosity, int overwrite_refs, int sendfd,
324 f8a36e22 2021-08-26 stsp     struct got_repository *repo, got_send_progress_cb progress_cb,
325 f8a36e22 2021-08-26 stsp     void *progress_arg, got_cancel_cb cancel_cb, void *cancel_arg)
326 f8a36e22 2021-08-26 stsp {
327 f8a36e22 2021-08-26 stsp 	int imsg_sendfds[2];
328 f8a36e22 2021-08-26 stsp 	int npackfd = -1, nsendfd = -1;
329 f8a36e22 2021-08-26 stsp 	int sendstatus, done = 0;
330 f8a36e22 2021-08-26 stsp 	const struct got_error *err;
331 f8a36e22 2021-08-26 stsp 	struct imsgbuf sendibuf;
332 f8a36e22 2021-08-26 stsp 	pid_t sendpid = -1;
333 f8a36e22 2021-08-26 stsp 	struct got_reflist_head refs;
334 f8a36e22 2021-08-26 stsp 	struct got_pathlist_head have_refs;
335 f8a36e22 2021-08-26 stsp 	struct got_pathlist_head their_refs;
336 f8a36e22 2021-08-26 stsp 	struct got_pathlist_entry *pe;
337 f8a36e22 2021-08-26 stsp 	struct got_reflist_entry *re;
338 f8a36e22 2021-08-26 stsp 	struct got_object_id **our_ids = NULL;
339 f8a36e22 2021-08-26 stsp 	struct got_object_id **their_ids = NULL;
340 f8a36e22 2021-08-26 stsp 	int i, nours = 0, ntheirs = 0;
341 f8a36e22 2021-08-26 stsp 	size_t nalloc_ours = 0, nalloc_theirs = 0;
342 27b75514 2021-08-28 stsp 	int refs_to_send = 0, refs_to_delete = 0;
343 46cd7462 2022-07-21 thomas 	off_t bytes_sent = 0, bytes_sent_cur = 0;
344 f8a36e22 2021-08-26 stsp 	struct pack_progress_arg ppa;
345 f8a36e22 2021-08-26 stsp 	uint8_t packsha1[SHA1_DIGEST_LENGTH];
346 20a7d452 2022-10-16 thomas 	int packfd = -1;
347 05fa7118 2022-10-16 thomas 	FILE *delta_cache = NULL;
348 f8a36e22 2021-08-26 stsp 
349 f8a36e22 2021-08-26 stsp 	TAILQ_INIT(&refs);
350 f8a36e22 2021-08-26 stsp 	TAILQ_INIT(&have_refs);
351 f8a36e22 2021-08-26 stsp 	TAILQ_INIT(&their_refs);
352 f8a36e22 2021-08-26 stsp 
353 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(pe, branch_names, entry) {
354 f8a36e22 2021-08-26 stsp 		const char *branchname = pe->path;
355 f8a36e22 2021-08-26 stsp 		if (strncmp(branchname, "refs/heads/", 11) != 0) {
356 f8a36e22 2021-08-26 stsp 			char *s;
357 f8a36e22 2021-08-26 stsp 			if (asprintf(&s, "refs/heads/%s", branchname) == -1) {
358 f8a36e22 2021-08-26 stsp 				err = got_error_from_errno("asprintf");
359 f8a36e22 2021-08-26 stsp 				goto done;
360 f8a36e22 2021-08-26 stsp 			}
361 f8a36e22 2021-08-26 stsp 			err = insert_ref(&refs, s, repo);
362 f8a36e22 2021-08-26 stsp 			free(s);
363 f8a36e22 2021-08-26 stsp 		} else {
364 f8a36e22 2021-08-26 stsp 			err = insert_ref(&refs, branchname, repo);
365 f8a36e22 2021-08-26 stsp 		}
366 f8a36e22 2021-08-26 stsp 		if (err)
367 f8a36e22 2021-08-26 stsp 			goto done;
368 f8a36e22 2021-08-26 stsp 	}
369 f8a36e22 2021-08-26 stsp 
370 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(pe, delete_branches, entry) {
371 f8a36e22 2021-08-26 stsp 		const char *branchname = pe->path;
372 f8a36e22 2021-08-26 stsp 		struct got_reference *ref;
373 f8a36e22 2021-08-26 stsp 		if (strncmp(branchname, "refs/heads/", 11) != 0) {
374 f8a36e22 2021-08-26 stsp 			err = got_error_fmt(GOT_ERR_SEND_DELETE_REF, "%s",
375 f8a36e22 2021-08-26 stsp 			    branchname);
376 f8a36e22 2021-08-26 stsp 			goto done;
377 f8a36e22 2021-08-26 stsp 		}
378 f8a36e22 2021-08-26 stsp 		ref = find_ref(&refs, branchname);
379 f8a36e22 2021-08-26 stsp 		if (ref) {
380 f8a36e22 2021-08-26 stsp 			err = got_error_fmt(GOT_ERR_SEND_DELETE_REF,
381 f8a36e22 2021-08-26 stsp 			    "changes on %s will be sent to server",
382 f8a36e22 2021-08-26 stsp 			    branchname);
383 f8a36e22 2021-08-26 stsp 			goto done;
384 f8a36e22 2021-08-26 stsp 		}
385 f8a36e22 2021-08-26 stsp 	}
386 f8a36e22 2021-08-26 stsp 
387 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(pe, tag_names, entry) {
388 f8a36e22 2021-08-26 stsp 		const char *tagname = pe->path;
389 f8a36e22 2021-08-26 stsp 		if (strncmp(tagname, "refs/tags/", 10) != 0) {
390 f8a36e22 2021-08-26 stsp 			char *s;
391 f8a36e22 2021-08-26 stsp 			if (asprintf(&s, "refs/tags/%s", tagname) == -1) {
392 f8a36e22 2021-08-26 stsp 				err = got_error_from_errno("asprintf");
393 f8a36e22 2021-08-26 stsp 				goto done;
394 f8a36e22 2021-08-26 stsp 			}
395 f8a36e22 2021-08-26 stsp 			err = insert_ref(&refs, s, repo);
396 f8a36e22 2021-08-26 stsp 			free(s);
397 f8a36e22 2021-08-26 stsp 		} else {
398 f8a36e22 2021-08-26 stsp 			err = insert_ref(&refs, tagname, repo);
399 f8a36e22 2021-08-26 stsp 		}
400 f8a36e22 2021-08-26 stsp 		if (err)
401 f8a36e22 2021-08-26 stsp 			goto done;
402 f8a36e22 2021-08-26 stsp 	}
403 f8a36e22 2021-08-26 stsp 
404 f8a36e22 2021-08-26 stsp 	if (TAILQ_EMPTY(&refs) && TAILQ_EMPTY(delete_branches)) {
405 f8a36e22 2021-08-26 stsp 		err = got_error(GOT_ERR_SEND_EMPTY);
406 f8a36e22 2021-08-26 stsp 		goto done;
407 f8a36e22 2021-08-26 stsp 	}
408 f8a36e22 2021-08-26 stsp 
409 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(re, &refs, entry) {
410 f8a36e22 2021-08-26 stsp 		struct got_object_id *id;
411 f8a36e22 2021-08-26 stsp 		int obj_type;
412 f8a36e22 2021-08-26 stsp 
413 f8a36e22 2021-08-26 stsp 		if (got_ref_is_symbolic(re->ref)) {
414 f8a36e22 2021-08-26 stsp 			err = got_error_fmt(GOT_ERR_BAD_REF_TYPE,
415 f8a36e22 2021-08-26 stsp 			    "cannot send symbolic reference %s",
416 f8a36e22 2021-08-26 stsp 			    got_ref_get_name(re->ref));
417 f8a36e22 2021-08-26 stsp 			goto done;
418 f8a36e22 2021-08-26 stsp 		}
419 f8a36e22 2021-08-26 stsp 
420 f8a36e22 2021-08-26 stsp 		err = got_ref_resolve(&id, repo, re->ref);
421 f8a36e22 2021-08-26 stsp 		if (err)
422 f8a36e22 2021-08-26 stsp 			goto done;
423 f8a36e22 2021-08-26 stsp 		err = got_object_get_type(&obj_type, repo, id);
424 f8a36e22 2021-08-26 stsp 		free(id);
425 f8a36e22 2021-08-26 stsp 		if (err)
426 f8a36e22 2021-08-26 stsp 			goto done;
427 f8a36e22 2021-08-26 stsp 		switch (obj_type) {
428 f8a36e22 2021-08-26 stsp 		case GOT_OBJ_TYPE_COMMIT:
429 f8a36e22 2021-08-26 stsp 		case GOT_OBJ_TYPE_TAG:
430 f8a36e22 2021-08-26 stsp 			break;
431 f8a36e22 2021-08-26 stsp 		default:
432 f8a36e22 2021-08-26 stsp 			err = got_error_fmt(GOT_ERR_OBJ_TYPE,
433 f8a36e22 2021-08-26 stsp 			    "cannot send %s", got_ref_get_name(re->ref));
434 f8a36e22 2021-08-26 stsp 			goto done;
435 f8a36e22 2021-08-26 stsp 		}
436 f8a36e22 2021-08-26 stsp 	}
437 f8a36e22 2021-08-26 stsp 
438 20a7d452 2022-10-16 thomas 	packfd = got_opentempfd();
439 20a7d452 2022-10-16 thomas 	if (packfd == -1) {
440 20a7d452 2022-10-16 thomas 		err = got_error_from_errno("got_opentempfd");
441 f8a36e22 2021-08-26 stsp 		goto done;
442 f8a36e22 2021-08-26 stsp 	}
443 f8a36e22 2021-08-26 stsp 
444 05fa7118 2022-10-16 thomas 	delta_cache = got_opentemp();
445 05fa7118 2022-10-16 thomas 	if (delta_cache == NULL) {
446 05fa7118 2022-10-16 thomas 		err = got_error_from_errno("got_opentemp");
447 05fa7118 2022-10-16 thomas 		goto done;
448 05fa7118 2022-10-16 thomas 	}
449 05fa7118 2022-10-16 thomas 
450 f8a36e22 2021-08-26 stsp 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_sendfds) == -1) {
451 f8a36e22 2021-08-26 stsp 		err = got_error_from_errno("socketpair");
452 f8a36e22 2021-08-26 stsp 		goto done;
453 f8a36e22 2021-08-26 stsp 	}
454 f8a36e22 2021-08-26 stsp 
455 f8a36e22 2021-08-26 stsp 	sendpid = fork();
456 f8a36e22 2021-08-26 stsp 	if (sendpid == -1) {
457 f8a36e22 2021-08-26 stsp 		err = got_error_from_errno("fork");
458 f8a36e22 2021-08-26 stsp 		goto done;
459 f8a36e22 2021-08-26 stsp 	} else if (sendpid == 0){
460 f8a36e22 2021-08-26 stsp 		got_privsep_exec_child(imsg_sendfds,
461 f8a36e22 2021-08-26 stsp 		    GOT_PATH_PROG_SEND_PACK, got_repo_get_path(repo));
462 f8a36e22 2021-08-26 stsp 	}
463 f8a36e22 2021-08-26 stsp 
464 f8a36e22 2021-08-26 stsp 	if (close(imsg_sendfds[1]) == -1) {
465 f8a36e22 2021-08-26 stsp 		err = got_error_from_errno("close");
466 f8a36e22 2021-08-26 stsp 		goto done;
467 f8a36e22 2021-08-26 stsp 	}
468 f8a36e22 2021-08-26 stsp 	imsg_init(&sendibuf, imsg_sendfds[0]);
469 f8a36e22 2021-08-26 stsp 	nsendfd = dup(sendfd);
470 f8a36e22 2021-08-26 stsp 	if (nsendfd == -1) {
471 f8a36e22 2021-08-26 stsp 		err = got_error_from_errno("dup");
472 f8a36e22 2021-08-26 stsp 		goto done;
473 f8a36e22 2021-08-26 stsp 	}
474 f8a36e22 2021-08-26 stsp 
475 f8a36e22 2021-08-26 stsp 	/*
476 f8a36e22 2021-08-26 stsp 	 * Convert reflist to pathlist since the privsep layer
477 f8a36e22 2021-08-26 stsp 	 * is linked into helper programs which lack reference.c.
478 f8a36e22 2021-08-26 stsp 	 */
479 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(re, &refs, entry) {
480 f8a36e22 2021-08-26 stsp 		struct got_object_id *id;
481 f8a36e22 2021-08-26 stsp 		err = got_ref_resolve(&id, repo, re->ref);
482 f8a36e22 2021-08-26 stsp 		if (err)
483 f8a36e22 2021-08-26 stsp 			goto done;
484 f8a36e22 2021-08-26 stsp 		err = got_pathlist_append(&have_refs,
485 f8a36e22 2021-08-26 stsp 		    got_ref_get_name(re->ref), id);
486 f8a36e22 2021-08-26 stsp 		if (err)
487 f8a36e22 2021-08-26 stsp 			goto done;
488 f8a36e22 2021-08-26 stsp 		/*
489 f8a36e22 2021-08-26 stsp 		 * Also prepare the array of our object IDs which
490 f8a36e22 2021-08-26 stsp 		 * will be needed for generating a pack file.
491 f8a36e22 2021-08-26 stsp 		 */
492 535e07c7 2021-08-29 naddy 		err = realloc_ids(&our_ids, &nalloc_ours, nours + 1);
493 f8a36e22 2021-08-26 stsp 		if (err)
494 f8a36e22 2021-08-26 stsp 			goto done;
495 f8a36e22 2021-08-26 stsp 		our_ids[nours] = id;
496 f8a36e22 2021-08-26 stsp 		nours++;
497 f8a36e22 2021-08-26 stsp 	}
498 f8a36e22 2021-08-26 stsp 
499 f8a36e22 2021-08-26 stsp 	err = got_privsep_send_send_req(&sendibuf, nsendfd, &have_refs,
500 f8a36e22 2021-08-26 stsp 	    delete_branches, verbosity);
501 f8a36e22 2021-08-26 stsp 	if (err)
502 f8a36e22 2021-08-26 stsp 		goto done;
503 f8a36e22 2021-08-26 stsp 	nsendfd = -1;
504 f8a36e22 2021-08-26 stsp 
505 f8a36e22 2021-08-26 stsp 	err = got_privsep_recv_send_remote_refs(&their_refs, &sendibuf);
506 f8a36e22 2021-08-26 stsp 	if (err)
507 f8a36e22 2021-08-26 stsp 		goto done;
508 f8a36e22 2021-08-26 stsp 
509 f8a36e22 2021-08-26 stsp 	/*
510 f8a36e22 2021-08-26 stsp 	 * Process references reported by the server.
511 f8a36e22 2021-08-26 stsp 	 * Push appropriate object IDs onto the "their IDs" array.
512 f8a36e22 2021-08-26 stsp 	 * This array will be used to exclude objects which already
513 f8a36e22 2021-08-26 stsp 	 * exist on the server from our pack file.
514 f8a36e22 2021-08-26 stsp 	 */
515 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(pe, &their_refs, entry) {
516 f8a36e22 2021-08-26 stsp 		const char *refname = pe->path;
517 f8a36e22 2021-08-26 stsp 		struct got_object_id *their_id = pe->data;
518 f8a36e22 2021-08-26 stsp 		int have_their_id;
519 f8a36e22 2021-08-26 stsp 		struct got_object *obj;
520 f8a36e22 2021-08-26 stsp 		struct got_reference *my_ref = NULL;
521 f8a36e22 2021-08-26 stsp 		int is_tag = 0;
522 f8a36e22 2021-08-26 stsp 
523 f8a36e22 2021-08-26 stsp 		/* Don't blindly trust the server to send us valid names. */
524 f8a36e22 2021-08-26 stsp 		if (!got_ref_name_is_valid(refname))
525 f8a36e22 2021-08-26 stsp 			continue;
526 f8a36e22 2021-08-26 stsp 
527 4064588e 2021-10-17 thomas 		if (strncmp(refname, "refs/tags/", 10) == 0)
528 4064588e 2021-10-17 thomas 			is_tag = 1;
529 f8a36e22 2021-08-26 stsp 		/*
530 f8a36e22 2021-08-26 stsp 		 * Find out whether this is a reference we want to upload.
531 f8a36e22 2021-08-26 stsp 		 * Otherwise we can still use this reference as a hint to
532 f8a36e22 2021-08-26 stsp 		 * avoid uploading any objects the server already has.
533 f8a36e22 2021-08-26 stsp 		 */
534 f8a36e22 2021-08-26 stsp 		my_ref = find_ref(&refs, refname);
535 f8a36e22 2021-08-26 stsp 		if (my_ref) {
536 c2105d00 2021-09-14 stsp 			struct got_object_id *my_id;
537 f8a36e22 2021-08-26 stsp 			err = got_ref_resolve(&my_id, repo, my_ref);
538 f8a36e22 2021-08-26 stsp 			if (err)
539 f8a36e22 2021-08-26 stsp 				goto done;
540 4064588e 2021-10-17 thomas 			if (got_object_id_cmp(my_id, their_id) != 0) {
541 4064588e 2021-10-17 thomas 				if (!overwrite_refs && is_tag) {
542 4064588e 2021-10-17 thomas 					err = got_error_fmt(
543 4064588e 2021-10-17 thomas 					    GOT_ERR_SEND_TAG_EXISTS,
544 4064588e 2021-10-17 thomas 					    "%s", refname);
545 4064588e 2021-10-17 thomas 					free(my_id);
546 4064588e 2021-10-17 thomas 					goto done;
547 4064588e 2021-10-17 thomas 				}
548 c2105d00 2021-09-14 stsp 				refs_to_send++;
549 4064588e 2021-10-17 thomas 			}
550 c2105d00 2021-09-14 stsp 			free(my_id);
551 f8a36e22 2021-08-26 stsp 		}
552 f8a36e22 2021-08-26 stsp 
553 f8a36e22 2021-08-26 stsp 		/* Check if their object exists locally. */
554 f8a36e22 2021-08-26 stsp 		err = got_object_open(&obj, repo, their_id);
555 f8a36e22 2021-08-26 stsp 		if (err) {
556 f8a36e22 2021-08-26 stsp 			if (err->code != GOT_ERR_NO_OBJ)
557 f8a36e22 2021-08-26 stsp 				goto done;
558 f8a36e22 2021-08-26 stsp 			if (!overwrite_refs && my_ref != NULL) {
559 f8a36e22 2021-08-26 stsp 				err = got_error_fmt(GOT_ERR_SEND_ANCESTRY,
560 f8a36e22 2021-08-26 stsp 				    "%s", refname);
561 f8a36e22 2021-08-26 stsp 				goto done;
562 f8a36e22 2021-08-26 stsp 			}
563 f8a36e22 2021-08-26 stsp 			have_their_id = 0;
564 f8a36e22 2021-08-26 stsp 		} else {
565 f8a36e22 2021-08-26 stsp 			got_object_close(obj);
566 f8a36e22 2021-08-26 stsp 			have_their_id = 1;
567 f8a36e22 2021-08-26 stsp 		}
568 f8a36e22 2021-08-26 stsp 
569 535e07c7 2021-08-29 naddy 		err = realloc_ids(&their_ids, &nalloc_theirs, ntheirs + 1);
570 f8a36e22 2021-08-26 stsp 		if (err)
571 f8a36e22 2021-08-26 stsp 			goto done;
572 f8a36e22 2021-08-26 stsp 
573 f8a36e22 2021-08-26 stsp 		if (have_their_id) {
574 f8a36e22 2021-08-26 stsp 			/* Enforce linear ancestry if required. */
575 f8a36e22 2021-08-26 stsp 			if (!overwrite_refs && my_ref && !is_tag) {
576 f8a36e22 2021-08-26 stsp 				struct got_object_id *my_id;
577 f8a36e22 2021-08-26 stsp 				err = got_ref_resolve(&my_id, repo, my_ref);
578 f8a36e22 2021-08-26 stsp 				if (err)
579 f8a36e22 2021-08-26 stsp 					goto done;
580 f8a36e22 2021-08-26 stsp 				err = check_linear_ancestry(refname, my_id,
581 f8a36e22 2021-08-26 stsp 				    their_id, repo, cancel_cb, cancel_arg);
582 f8a36e22 2021-08-26 stsp 				free(my_id);
583 f8a36e22 2021-08-26 stsp 				my_id = NULL;
584 f8a36e22 2021-08-26 stsp 				if (err)
585 f8a36e22 2021-08-26 stsp 					goto done;
586 f8a36e22 2021-08-26 stsp 			}
587 f8a36e22 2021-08-26 stsp 			/* Exclude any objects reachable via their ID. */
588 f8a36e22 2021-08-26 stsp 			their_ids[ntheirs] = got_object_id_dup(their_id);
589 f8a36e22 2021-08-26 stsp 			if (their_ids[ntheirs] == NULL) {
590 f8a36e22 2021-08-26 stsp 				err = got_error_from_errno("got_object_id_dup");
591 f8a36e22 2021-08-26 stsp 				goto done;
592 f8a36e22 2021-08-26 stsp 			}
593 f8a36e22 2021-08-26 stsp 			ntheirs++;
594 f8a36e22 2021-08-26 stsp 		} else if (!is_tag) {
595 f8a36e22 2021-08-26 stsp 			char *remote_refname;
596 f8a36e22 2021-08-26 stsp 			struct got_reference *ref;
597 f8a36e22 2021-08-26 stsp 			/*
598 f8a36e22 2021-08-26 stsp 			 * Exclude any objects which exist on the server
599 f8a36e22 2021-08-26 stsp 			 * according to a locally cached remote reference.
600 f8a36e22 2021-08-26 stsp 			 */
601 f8a36e22 2021-08-26 stsp 			err = get_remote_refname(&remote_refname,
602 f8a36e22 2021-08-26 stsp 			    remote_name, refname);
603 f8a36e22 2021-08-26 stsp 			if (err)
604 f8a36e22 2021-08-26 stsp 				goto done;
605 f8a36e22 2021-08-26 stsp 			err = got_ref_open(&ref, repo, remote_refname, 0);
606 f8a36e22 2021-08-26 stsp 			free(remote_refname);
607 f8a36e22 2021-08-26 stsp 			if (err) {
608 f8a36e22 2021-08-26 stsp 				if (err->code != GOT_ERR_NOT_REF)
609 f8a36e22 2021-08-26 stsp 					goto done;
610 f8a36e22 2021-08-26 stsp 			} else {
611 f8a36e22 2021-08-26 stsp 				err = got_ref_resolve(&their_ids[ntheirs],
612 f8a36e22 2021-08-26 stsp 				    repo, ref);
613 f8a36e22 2021-08-26 stsp 				got_ref_close(ref);
614 f8a36e22 2021-08-26 stsp 				if (err)
615 f8a36e22 2021-08-26 stsp 					goto done;
616 f8a36e22 2021-08-26 stsp 				ntheirs++;
617 f8a36e22 2021-08-26 stsp 			}
618 f8a36e22 2021-08-26 stsp 		}
619 f8a36e22 2021-08-26 stsp 	}
620 f8a36e22 2021-08-26 stsp 
621 f8a36e22 2021-08-26 stsp 	/* Account for any new references we are going to upload. */
622 f8a36e22 2021-08-26 stsp 	TAILQ_FOREACH(re, &refs, entry) {
623 f8a36e22 2021-08-26 stsp 		if (find_their_ref(&their_refs,
624 f8a36e22 2021-08-26 stsp 		    got_ref_get_name(re->ref)) == NULL)
625 f8a36e22 2021-08-26 stsp 			refs_to_send++;
626 f8a36e22 2021-08-26 stsp 	}
627 f8a36e22 2021-08-26 stsp 
628 1bd76734 2021-08-26 stsp 	/* Account for any existing references we are going to delete. */
629 1bd76734 2021-08-26 stsp 	TAILQ_FOREACH(pe, delete_branches, entry) {
630 1bd76734 2021-08-26 stsp 		const char *branchname = pe->path;
631 1bd76734 2021-08-26 stsp 		if (find_their_ref(&their_refs, branchname))
632 27b75514 2021-08-28 stsp 			refs_to_delete++;
633 1bd76734 2021-08-26 stsp 	}
634 1bd76734 2021-08-26 stsp 
635 27b75514 2021-08-28 stsp 	if (refs_to_send == 0 && refs_to_delete == 0) {
636 f8a36e22 2021-08-26 stsp 		got_privsep_send_stop(imsg_sendfds[0]);
637 f8a36e22 2021-08-26 stsp 		goto done;
638 f8a36e22 2021-08-26 stsp 	}
639 f8a36e22 2021-08-26 stsp 
640 27b75514 2021-08-28 stsp 	if (refs_to_send > 0) {
641 abd46894 2022-10-18 thomas 		struct got_ratelimit rl;
642 abd46894 2022-10-18 thomas 		got_ratelimit_init(&rl, 0, 500);
643 27b75514 2021-08-28 stsp 		memset(&ppa, 0, sizeof(ppa));
644 27b75514 2021-08-28 stsp 		ppa.progress_cb = progress_cb;
645 27b75514 2021-08-28 stsp 		ppa.progress_arg = progress_arg;
646 05fa7118 2022-10-16 thomas 		err = got_pack_create(packsha1, packfd, delta_cache,
647 6c69e5ab 2023-02-20 thomas 		    their_ids, ntheirs, our_ids, nours, repo, 0, 1, 0,
648 abd46894 2022-10-18 thomas 		    pack_progress, &ppa, &rl, cancel_cb, cancel_arg);
649 27b75514 2021-08-28 stsp 		if (err)
650 27b75514 2021-08-28 stsp 			goto done;
651 f8a36e22 2021-08-26 stsp 
652 20a7d452 2022-10-16 thomas 		npackfd = dup(packfd);
653 27b75514 2021-08-28 stsp 		if (npackfd == -1) {
654 27b75514 2021-08-28 stsp 			err = got_error_from_errno("dup");
655 27b75514 2021-08-28 stsp 			goto done;
656 27b75514 2021-08-28 stsp 		}
657 27b75514 2021-08-28 stsp 		err = got_privsep_send_packfd(&sendibuf, npackfd);
658 27b75514 2021-08-28 stsp 		if (err != NULL)
659 27b75514 2021-08-28 stsp 			goto done;
660 27b75514 2021-08-28 stsp 		npackfd = -1;
661 27b75514 2021-08-28 stsp 	} else {
662 27b75514 2021-08-28 stsp 		err = got_privsep_send_packfd(&sendibuf, -1);
663 27b75514 2021-08-28 stsp 		if (err != NULL)
664 27b75514 2021-08-28 stsp 			goto done;
665 f8a36e22 2021-08-26 stsp 	}
666 f8a36e22 2021-08-26 stsp 
667 f8a36e22 2021-08-26 stsp 	while (!done) {
668 f8a36e22 2021-08-26 stsp 		int success = 0;
669 f8a36e22 2021-08-26 stsp 		char *refname = NULL;
670 3fe5d0fe 2022-11-17 thomas 		char *errmsg = NULL;
671 3fe5d0fe 2022-11-17 thomas 
672 f8a36e22 2021-08-26 stsp 		if (cancel_cb) {
673 f8a36e22 2021-08-26 stsp 			err = (*cancel_cb)(cancel_arg);
674 f8a36e22 2021-08-26 stsp 			if (err)
675 f8a36e22 2021-08-26 stsp 				goto done;
676 f8a36e22 2021-08-26 stsp 		}
677 f8a36e22 2021-08-26 stsp 		err = got_privsep_recv_send_progress(&done, &bytes_sent,
678 3fe5d0fe 2022-11-17 thomas 		    &success, &refname, &errmsg, &sendibuf);
679 f8a36e22 2021-08-26 stsp 		if (err)
680 f8a36e22 2021-08-26 stsp 			goto done;
681 f8a36e22 2021-08-26 stsp 		if (refname && got_ref_name_is_valid(refname) && success &&
682 f8a36e22 2021-08-26 stsp 		    strncmp(refname, "refs/tags/", 10) != 0) {
683 f8a36e22 2021-08-26 stsp 			struct got_reference *my_ref;
684 f8a36e22 2021-08-26 stsp 			/*
685 f8a36e22 2021-08-26 stsp 			 * The server has accepted our changes.
686 f8a36e22 2021-08-26 stsp 			 * Update our reference in refs/remotes/ accordingly.
687 f8a36e22 2021-08-26 stsp 			 */
688 f8a36e22 2021-08-26 stsp 			my_ref = find_ref(&refs, refname);
689 f8a36e22 2021-08-26 stsp 			if (my_ref) {
690 f8a36e22 2021-08-26 stsp 				err = update_remote_ref(my_ref, remote_name,
691 f8a36e22 2021-08-26 stsp 				    repo);
692 f8a36e22 2021-08-26 stsp 				if (err)
693 f8a36e22 2021-08-26 stsp 					goto done;
694 f8a36e22 2021-08-26 stsp 			}
695 f8a36e22 2021-08-26 stsp 		}
696 f8a36e22 2021-08-26 stsp 		if (refname != NULL ||
697 f8a36e22 2021-08-26 stsp 		    bytes_sent_cur != bytes_sent) {
698 85220b0e 2022-03-22 thomas 			err = progress_cb(progress_arg, ppa.ncolored,
699 85220b0e 2022-03-22 thomas 			    ppa.nfound, ppa.ntrees, ppa.packfile_size,
700 f8a36e22 2021-08-26 stsp 			    ppa.ncommits, ppa.nobj_total, ppa.nobj_deltify,
701 f8a36e22 2021-08-26 stsp 			    ppa.nobj_written, bytes_sent,
702 3fe5d0fe 2022-11-17 thomas 			    refname, errmsg, success);
703 f8a36e22 2021-08-26 stsp 			if (err) {
704 f8a36e22 2021-08-26 stsp 				free(refname);
705 3fe5d0fe 2022-11-17 thomas 				free(errmsg);
706 f8a36e22 2021-08-26 stsp 				goto done;
707 f8a36e22 2021-08-26 stsp 			}
708 f8a36e22 2021-08-26 stsp 			bytes_sent_cur = bytes_sent;
709 f8a36e22 2021-08-26 stsp 		}
710 f8a36e22 2021-08-26 stsp 		free(refname);
711 3fe5d0fe 2022-11-17 thomas 		free(errmsg);
712 f8a36e22 2021-08-26 stsp 	}
713 f8a36e22 2021-08-26 stsp done:
714 f8a36e22 2021-08-26 stsp 	if (sendpid != -1) {
715 f8a36e22 2021-08-26 stsp 		if (err)
716 f8a36e22 2021-08-26 stsp 			got_privsep_send_stop(imsg_sendfds[0]);
717 f8a36e22 2021-08-26 stsp 		if (waitpid(sendpid, &sendstatus, 0) == -1 && err == NULL)
718 f8a36e22 2021-08-26 stsp 			err = got_error_from_errno("waitpid");
719 f8a36e22 2021-08-26 stsp 	}
720 20a7d452 2022-10-16 thomas 	if (packfd != -1 && close(packfd) == -1 && err == NULL)
721 20a7d452 2022-10-16 thomas 		err = got_error_from_errno("close");
722 05fa7118 2022-10-16 thomas 	if (delta_cache && fclose(delta_cache) == EOF && err == NULL)
723 05fa7118 2022-10-16 thomas 		err = got_error_from_errno("fclose");
724 f8a36e22 2021-08-26 stsp 	if (nsendfd != -1 && close(nsendfd) == -1 && err == NULL)
725 f8a36e22 2021-08-26 stsp 		err = got_error_from_errno("close");
726 f8a36e22 2021-08-26 stsp 	if (npackfd != -1 && close(npackfd) == -1 && err == NULL)
727 f8a36e22 2021-08-26 stsp 		err = got_error_from_errno("close");
728 f8a36e22 2021-08-26 stsp 
729 f8a36e22 2021-08-26 stsp 	got_ref_list_free(&refs);
730 21c2d8be 2023-01-10 thomas 	got_pathlist_free(&have_refs, GOT_PATHLIST_FREE_NONE);
731 21c2d8be 2023-01-10 thomas 	got_pathlist_free(&their_refs, GOT_PATHLIST_FREE_NONE);
732 f8a36e22 2021-08-26 stsp 	for (i = 0; i < nours; i++)
733 f8a36e22 2021-08-26 stsp 		free(our_ids[i]);
734 f8a36e22 2021-08-26 stsp 	free(our_ids);
735 f8a36e22 2021-08-26 stsp 	for (i = 0; i < ntheirs; i++)
736 f8a36e22 2021-08-26 stsp 		free(their_ids[i]);
737 f8a36e22 2021-08-26 stsp 	free(their_ids);
738 f8a36e22 2021-08-26 stsp 	return err;
739 f8a36e22 2021-08-26 stsp }