| 1 | #define USE_THE_REPOSITORY_VARIABLE |
| 2 | |
| 3 | #include "git-compat-util.h" |
| 4 | #include "transport.h" |
| 5 | #include "quote.h" |
| 6 | #include "run-command.h" |
| 7 | #include "commit.h" |
| 8 | #include "environment.h" |
| 9 | #include "gettext.h" |
| 10 | #include "hex.h" |
| 11 | #include "object-name.h" |
| 12 | #include "repository.h" |
| 13 | #include "remote.h" |
| 14 | #include "string-list.h" |
| 15 | #include "thread-utils.h" |
| 16 | #include "sigchain.h" |
| 17 | #include "strvec.h" |
| 18 | #include "refs.h" |
| 19 | #include "refspec.h" |
| 20 | #include "transport-internal.h" |
| 21 | #include "protocol.h" |
| 22 | #include "packfile.h" |
| 23 | |
| 24 | static int debug; |
| 25 | |
| 26 | struct helper_data { |
| 27 | char *name; |
| 28 | struct child_process *helper; |
| 29 | FILE *out; |
| 30 | unsigned fetch : 1, |
| 31 | import : 1, |
| 32 | bidi_import : 1, |
| 33 | export : 1, |
| 34 | option : 1, |
| 35 | push : 1, |
| 36 | connect : 1, |
| 37 | stateless_connect : 1, |
| 38 | signed_tags : 1, |
| 39 | check_connectivity : 1, |
| 40 | no_disconnect_req : 1, |
| 41 | no_private_update : 1, |
| 42 | object_format : 1; |
| 43 | |
| 44 | /* |
| 45 | * As an optimization, the transport code may invoke fetch before |
| 46 | * get_refs_list. If this happens, and if the transport helper doesn't |
| 47 | * support connect or stateless_connect, we need to invoke |
| 48 | * get_refs_list ourselves if we haven't already done so. Keep track of |
| 49 | * whether we have invoked get_refs_list. |
| 50 | */ |
| 51 | unsigned get_refs_list_called : 1; |
| 52 | |
| 53 | char *export_marks; |
| 54 | char *import_marks; |
| 55 | /* These go from remote name (as in "list") to private name */ |
| 56 | struct refspec rs; |
| 57 | /* Transport options for fetch-pack/send-pack (should one of |
| 58 | * those be invoked). |
| 59 | */ |
| 60 | struct git_transport_options transport_options; |
| 61 | }; |
| 62 | |
| 63 | static void sendline(struct helper_data *helper, struct strbuf *buffer) |
| 64 | { |
| 65 | if (debug) |
| 66 | fprintf(stderr, "Debug: Remote helper: -> %s", buffer->buf); |
| 67 | if (write_in_full(helper->helper->in, buffer->buf, buffer->len) < 0) |
| 68 | die_errno(_("full write to remote helper failed")); |
| 69 | } |
| 70 | |
| 71 | static int recvline_fh(FILE *helper, struct strbuf *buffer) |
| 72 | { |
| 73 | strbuf_reset(buffer); |
| 74 | if (debug) |
| 75 | fprintf(stderr, "Debug: Remote helper: Waiting...\n"); |
| 76 | if (strbuf_getline(buffer, helper) == EOF) { |
| 77 | if (debug) |
| 78 | fprintf(stderr, "Debug: Remote helper quit.\n"); |
| 79 | return 1; |
| 80 | } |
| 81 | |
| 82 | if (debug) |
| 83 | fprintf(stderr, "Debug: Remote helper: <- %s\n", buffer->buf); |
| 84 | return 0; |
| 85 | } |
| 86 | |
| 87 | static int recvline(struct helper_data *helper, struct strbuf *buffer) |
| 88 | { |
| 89 | return recvline_fh(helper->out, buffer); |
| 90 | } |
| 91 | |
| 92 | static int write_constant_gently(int fd, const char *str) |
| 93 | { |
| 94 | if (debug) |
| 95 | fprintf(stderr, "Debug: Remote helper: -> %s", str); |
| 96 | if (write_in_full(fd, str, strlen(str)) < 0) |
| 97 | return -1; |
| 98 | return 0; |
| 99 | } |
| 100 | |
| 101 | static void write_constant(int fd, const char *str) |
| 102 | { |
| 103 | if (write_constant_gently(fd, str) < 0) |
| 104 | die_errno(_("full write to remote helper failed")); |
| 105 | } |
| 106 | |
| 107 | static const char *remove_ext_force(const char *url) |
| 108 | { |
| 109 | if (url) { |
| 110 | const char *colon = strchr(url, ':'); |
| 111 | if (colon && colon[1] == ':') |
| 112 | return colon + 2; |
| 113 | } |
| 114 | return url; |
| 115 | } |
| 116 | |
| 117 | static void do_take_over(struct transport *transport) |
| 118 | { |
| 119 | struct helper_data *data; |
| 120 | data = (struct helper_data *)transport->data; |
| 121 | transport_take_over(transport, data->helper); |
| 122 | fclose(data->out); |
| 123 | free(data->name); |
| 124 | free(data); |
| 125 | } |
| 126 | |
| 127 | static void standard_options(struct transport *t); |
| 128 | |
| 129 | static struct child_process *get_helper(struct transport *transport) |
| 130 | { |
| 131 | struct helper_data *data = transport->data; |
| 132 | struct strbuf buf = STRBUF_INIT; |
| 133 | struct child_process *helper; |
| 134 | int duped; |
| 135 | int code; |
| 136 | |
| 137 | if (data->helper) |
| 138 | return data->helper; |
| 139 | |
| 140 | helper = xmalloc(sizeof(*helper)); |
| 141 | child_process_init(helper); |
| 142 | helper->in = -1; |
| 143 | helper->out = -1; |
| 144 | helper->err = 0; |
| 145 | strvec_pushf(&helper->args, "remote-%s", data->name); |
| 146 | strvec_push(&helper->args, transport->remote->name); |
| 147 | strvec_push(&helper->args, remove_ext_force(transport->url)); |
| 148 | helper->git_cmd = 1; |
| 149 | helper->silent_exec_failure = 1; |
| 150 | |
| 151 | if (have_git_dir()) |
| 152 | strvec_pushf(&helper->env, "%s=%s", |
| 153 | GIT_DIR_ENVIRONMENT, repo_get_git_dir(the_repository)); |
| 154 | |
| 155 | helper->trace2_child_class = helper->args.v[0]; /* "remote-<name>" */ |
| 156 | |
| 157 | code = start_command(helper); |
| 158 | if (code < 0 && errno == ENOENT) |
| 159 | die(_("unable to find remote helper for '%s'"), data->name); |
| 160 | else if (code != 0) |
| 161 | exit(code); |
| 162 | |
| 163 | data->helper = helper; |
| 164 | data->no_disconnect_req = 0; |
| 165 | refspec_init_fetch(&data->rs); |
| 166 | |
| 167 | /* |
| 168 | * Open the output as FILE* so strbuf_getline_*() family of |
| 169 | * functions can be used. |
| 170 | * Do this with duped fd because fclose() will close the fd, |
| 171 | * and stuff like taking over will require the fd to remain. |
| 172 | */ |
| 173 | duped = dup(helper->out); |
| 174 | if (duped < 0) |
| 175 | die_errno(_("can't dup helper output fd")); |
| 176 | data->out = xfdopen(duped, "r"); |
| 177 | |
| 178 | sigchain_push(SIGPIPE, SIG_IGN); |
| 179 | if (write_constant_gently(helper->in, "capabilities\n") < 0) |
| 180 | die("remote helper '%s' aborted session", data->name); |
| 181 | sigchain_pop(SIGPIPE); |
| 182 | |
| 183 | while (1) { |
| 184 | const char *capname, *arg; |
| 185 | int mandatory = 0; |
| 186 | if (recvline(data, &buf)) |
| 187 | die("remote helper '%s' aborted session", data->name); |
| 188 | |
| 189 | if (!*buf.buf) |
| 190 | break; |
| 191 | |
| 192 | if (*buf.buf == '*') { |
| 193 | capname = buf.buf + 1; |
| 194 | mandatory = 1; |
| 195 | } else |
| 196 | capname = buf.buf; |
| 197 | |
| 198 | if (debug) |
| 199 | fprintf(stderr, "Debug: Got cap %s\n", capname); |
| 200 | if (!strcmp(capname, "fetch")) |
| 201 | data->fetch = 1; |
| 202 | else if (!strcmp(capname, "option")) |
| 203 | data->option = 1; |
| 204 | else if (!strcmp(capname, "push")) |
| 205 | data->push = 1; |
| 206 | else if (!strcmp(capname, "import")) |
| 207 | data->import = 1; |
| 208 | else if (!strcmp(capname, "bidi-import")) |
| 209 | data->bidi_import = 1; |
| 210 | else if (!strcmp(capname, "export")) |
| 211 | data->export = 1; |
| 212 | else if (!strcmp(capname, "check-connectivity")) |
| 213 | data->check_connectivity = 1; |
| 214 | else if (skip_prefix(capname, "refspec ", &arg)) { |
| 215 | refspec_append(&data->rs, arg); |
| 216 | } else if (!strcmp(capname, "connect")) { |
| 217 | data->connect = 1; |
| 218 | } else if (!strcmp(capname, "stateless-connect")) { |
| 219 | data->stateless_connect = 1; |
| 220 | } else if (!strcmp(capname, "signed-tags")) { |
| 221 | data->signed_tags = 1; |
| 222 | } else if (skip_prefix(capname, "export-marks ", &arg)) { |
| 223 | data->export_marks = xstrdup(arg); |
| 224 | } else if (skip_prefix(capname, "import-marks ", &arg)) { |
| 225 | data->import_marks = xstrdup(arg); |
| 226 | } else if (starts_with(capname, "no-private-update")) { |
| 227 | data->no_private_update = 1; |
| 228 | } else if (starts_with(capname, "object-format")) { |
| 229 | data->object_format = 1; |
| 230 | } else if (mandatory) { |
| 231 | die(_("unknown mandatory capability %s; this remote " |
| 232 | "helper probably needs newer version of Git"), |
| 233 | capname); |
| 234 | } |
| 235 | } |
| 236 | if (!data->rs.nr && (data->import || data->bidi_import || data->export)) { |
| 237 | warning(_("this remote helper should implement refspec capability")); |
| 238 | } |
| 239 | strbuf_release(&buf); |
| 240 | if (debug) |
| 241 | fprintf(stderr, "Debug: Capabilities complete.\n"); |
| 242 | standard_options(transport); |
| 243 | return data->helper; |
| 244 | } |
| 245 | |
| 246 | static int disconnect_helper(struct transport *transport) |
| 247 | { |
| 248 | struct helper_data *data = transport->data; |
| 249 | int res = 0; |
| 250 | |
| 251 | if (data->helper) { |
| 252 | if (debug) |
| 253 | fprintf(stderr, "Debug: Disconnecting.\n"); |
| 254 | if (!data->no_disconnect_req) { |
| 255 | /* |
| 256 | * Ignore write errors; there's nothing we can do, |
| 257 | * since we're about to close the pipe anyway. And the |
| 258 | * most likely error is EPIPE due to the helper dying |
| 259 | * to report an error itself. |
| 260 | */ |
| 261 | sigchain_push(SIGPIPE, SIG_IGN); |
| 262 | xwrite(data->helper->in, "\n", 1); |
| 263 | sigchain_pop(SIGPIPE); |
| 264 | } |
| 265 | close(data->helper->in); |
| 266 | close(data->helper->out); |
| 267 | fclose(data->out); |
| 268 | res = finish_command(data->helper); |
| 269 | FREE_AND_NULL(data->name); |
| 270 | FREE_AND_NULL(data->helper); |
| 271 | } |
| 272 | return res; |
| 273 | } |
| 274 | |
| 275 | static const char *unsupported_options[] = { |
| 276 | TRANS_OPT_UPLOADPACK, |
| 277 | TRANS_OPT_RECEIVEPACK, |
| 278 | TRANS_OPT_THIN, |
| 279 | TRANS_OPT_KEEP |
| 280 | }; |
| 281 | |
| 282 | static const char *boolean_options[] = { |
| 283 | TRANS_OPT_THIN, |
| 284 | TRANS_OPT_KEEP, |
| 285 | TRANS_OPT_FOLLOWTAGS, |
| 286 | TRANS_OPT_DEEPEN_RELATIVE |
| 287 | }; |
| 288 | |
| 289 | static int strbuf_set_helper_option(struct helper_data *data, |
| 290 | struct strbuf *buf) |
| 291 | { |
| 292 | int ret; |
| 293 | |
| 294 | sendline(data, buf); |
| 295 | if (recvline(data, buf)) |
| 296 | exit(128); |
| 297 | |
| 298 | if (!strcmp(buf->buf, "ok")) |
| 299 | ret = 0; |
| 300 | else if (starts_with(buf->buf, "error")) |
| 301 | ret = -1; |
| 302 | else if (!strcmp(buf->buf, "unsupported")) |
| 303 | ret = 1; |
| 304 | else { |
| 305 | warning(_("%s unexpectedly said: '%s'"), data->name, buf->buf); |
| 306 | ret = 1; |
| 307 | } |
| 308 | return ret; |
| 309 | } |
| 310 | |
| 311 | static int string_list_set_helper_option(struct helper_data *data, |
| 312 | const char *name, |
| 313 | struct string_list *list) |
| 314 | { |
| 315 | struct strbuf buf = STRBUF_INIT; |
| 316 | int ret = 0; |
| 317 | |
| 318 | for (size_t i = 0; i < list->nr; i++) { |
| 319 | strbuf_addf(&buf, "option %s ", name); |
| 320 | quote_c_style(list->items[i].string, &buf, NULL, 0); |
| 321 | strbuf_addch(&buf, '\n'); |
| 322 | |
| 323 | if ((ret = strbuf_set_helper_option(data, &buf))) |
| 324 | break; |
| 325 | strbuf_reset(&buf); |
| 326 | } |
| 327 | strbuf_release(&buf); |
| 328 | return ret; |
| 329 | } |
| 330 | |
| 331 | static int set_helper_option(struct transport *transport, |
| 332 | const char *name, const char *value) |
| 333 | { |
| 334 | struct helper_data *data = transport->data; |
| 335 | struct strbuf buf = STRBUF_INIT; |
| 336 | int ret, is_bool = 0; |
| 337 | |
| 338 | get_helper(transport); |
| 339 | |
| 340 | if (!data->option) |
| 341 | return 1; |
| 342 | |
| 343 | if (!strcmp(name, "deepen-not")) |
| 344 | return string_list_set_helper_option(data, name, |
| 345 | (struct string_list *)value); |
| 346 | |
| 347 | for (size_t i = 0; i < ARRAY_SIZE(unsupported_options); i++) { |
| 348 | if (!strcmp(name, unsupported_options[i])) |
| 349 | return 1; |
| 350 | } |
| 351 | |
| 352 | for (size_t i = 0; i < ARRAY_SIZE(boolean_options); i++) { |
| 353 | if (!strcmp(name, boolean_options[i])) { |
| 354 | is_bool = 1; |
| 355 | break; |
| 356 | } |
| 357 | } |
| 358 | |
| 359 | strbuf_addf(&buf, "option %s ", name); |
| 360 | if (is_bool) |
| 361 | strbuf_addstr(&buf, value ? "true" : "false"); |
| 362 | else |
| 363 | quote_c_style(value, &buf, NULL, 0); |
| 364 | strbuf_addch(&buf, '\n'); |
| 365 | |
| 366 | ret = strbuf_set_helper_option(data, &buf); |
| 367 | strbuf_release(&buf); |
| 368 | return ret; |
| 369 | } |
| 370 | |
| 371 | static void standard_options(struct transport *t) |
| 372 | { |
| 373 | char buf[16]; |
| 374 | int v = t->verbose; |
| 375 | |
| 376 | set_helper_option(t, "progress", t->progress ? "true" : "false"); |
| 377 | |
| 378 | xsnprintf(buf, sizeof(buf), "%d", v + 1); |
| 379 | set_helper_option(t, "verbosity", buf); |
| 380 | |
| 381 | switch (t->family) { |
| 382 | case TRANSPORT_FAMILY_ALL: |
| 383 | /* |
| 384 | * this is already the default, |
| 385 | * do not break old remote helpers by setting "all" here |
| 386 | */ |
| 387 | break; |
| 388 | case TRANSPORT_FAMILY_IPV4: |
| 389 | set_helper_option(t, "family", "ipv4"); |
| 390 | break; |
| 391 | case TRANSPORT_FAMILY_IPV6: |
| 392 | set_helper_option(t, "family", "ipv6"); |
| 393 | break; |
| 394 | } |
| 395 | } |
| 396 | |
| 397 | static int release_helper(struct transport *transport) |
| 398 | { |
| 399 | int res = 0; |
| 400 | struct helper_data *data = transport->data; |
| 401 | refspec_clear(&data->rs); |
| 402 | free(data->import_marks); |
| 403 | free(data->export_marks); |
| 404 | res = disconnect_helper(transport); |
| 405 | free(transport->data); |
| 406 | return res; |
| 407 | } |
| 408 | |
| 409 | static int fetch_with_fetch(struct transport *transport, |
| 410 | int nr_heads, struct ref **to_fetch) |
| 411 | { |
| 412 | struct helper_data *data = transport->data; |
| 413 | int i; |
| 414 | struct strbuf buf = STRBUF_INIT; |
| 415 | |
| 416 | for (i = 0; i < nr_heads; i++) { |
| 417 | const struct ref *posn = to_fetch[i]; |
| 418 | if (posn->status & REF_STATUS_UPTODATE) |
| 419 | continue; |
| 420 | |
| 421 | strbuf_addf(&buf, "fetch %s %s\n", |
| 422 | oid_to_hex(&posn->old_oid), |
| 423 | posn->symref ? posn->symref : posn->name); |
| 424 | } |
| 425 | |
| 426 | strbuf_addch(&buf, '\n'); |
| 427 | sendline(data, &buf); |
| 428 | |
| 429 | while (1) { |
| 430 | const char *name; |
| 431 | |
| 432 | if (recvline(data, &buf)) |
| 433 | exit(128); |
| 434 | |
| 435 | if (skip_prefix(buf.buf, "lock ", &name)) { |
| 436 | if (transport->pack_lockfiles.nr) |
| 437 | warning(_("%s also locked %s"), data->name, name); |
| 438 | else |
| 439 | string_list_append(&transport->pack_lockfiles, |
| 440 | name); |
| 441 | } |
| 442 | else if (data->check_connectivity && |
| 443 | data->transport_options.check_self_contained_and_connected && |
| 444 | !strcmp(buf.buf, "connectivity-ok")) |
| 445 | data->transport_options.self_contained_and_connected = 1; |
| 446 | else if (!buf.len) |
| 447 | break; |
| 448 | else |
| 449 | warning(_("%s unexpectedly said: '%s'"), data->name, buf.buf); |
| 450 | } |
| 451 | strbuf_release(&buf); |
| 452 | |
| 453 | odb_reprepare(the_repository->objects); |
| 454 | return 0; |
| 455 | } |
| 456 | |
| 457 | static int get_importer(struct transport *transport, struct child_process *fastimport) |
| 458 | { |
| 459 | struct child_process *helper = get_helper(transport); |
| 460 | struct helper_data *data = transport->data; |
| 461 | int cat_blob_fd, code; |
| 462 | child_process_init(fastimport); |
| 463 | fastimport->in = xdup(helper->out); |
| 464 | strvec_push(&fastimport->args, "fast-import"); |
| 465 | strvec_push(&fastimport->args, "--allow-unsafe-features"); |
| 466 | strvec_push(&fastimport->args, debug ? "--stats" : "--quiet"); |
| 467 | |
| 468 | if (data->bidi_import) { |
| 469 | cat_blob_fd = xdup(helper->in); |
| 470 | strvec_pushf(&fastimport->args, "--cat-blob-fd=%d", cat_blob_fd); |
| 471 | } |
| 472 | fastimport->git_cmd = 1; |
| 473 | |
| 474 | code = start_command(fastimport); |
| 475 | return code; |
| 476 | } |
| 477 | |
| 478 | static int get_exporter(struct transport *transport, |
| 479 | struct child_process *fastexport, |
| 480 | struct string_list *revlist_args) |
| 481 | { |
| 482 | struct helper_data *data = transport->data; |
| 483 | struct child_process *helper = get_helper(transport); |
| 484 | |
| 485 | child_process_init(fastexport); |
| 486 | |
| 487 | /* we need to duplicate helper->in because we want to use it after |
| 488 | * fastexport is done with it. */ |
| 489 | fastexport->out = dup(helper->in); |
| 490 | strvec_push(&fastexport->args, "fast-export"); |
| 491 | strvec_push(&fastexport->args, "--use-done-feature"); |
| 492 | strvec_push(&fastexport->args, data->signed_tags ? |
| 493 | "--signed-tags=verbatim" : "--signed-tags=warn-strip"); |
| 494 | if (data->export_marks) |
| 495 | strvec_pushf(&fastexport->args, "--export-marks=%s.tmp", data->export_marks); |
| 496 | if (data->import_marks) |
| 497 | strvec_pushf(&fastexport->args, "--import-marks=%s", data->import_marks); |
| 498 | |
| 499 | for (size_t i = 0; i < revlist_args->nr; i++) |
| 500 | strvec_push(&fastexport->args, revlist_args->items[i].string); |
| 501 | |
| 502 | fastexport->git_cmd = 1; |
| 503 | return start_command(fastexport); |
| 504 | } |
| 505 | |
| 506 | static int fetch_with_import(struct transport *transport, |
| 507 | int nr_heads, struct ref **to_fetch) |
| 508 | { |
| 509 | struct child_process fastimport; |
| 510 | struct helper_data *data = transport->data; |
| 511 | int i; |
| 512 | struct ref *posn; |
| 513 | struct strbuf buf = STRBUF_INIT; |
| 514 | |
| 515 | get_helper(transport); |
| 516 | |
| 517 | if (get_importer(transport, &fastimport)) |
| 518 | die(_("couldn't run fast-import")); |
| 519 | |
| 520 | for (i = 0; i < nr_heads; i++) { |
| 521 | posn = to_fetch[i]; |
| 522 | if (posn->status & REF_STATUS_UPTODATE) |
| 523 | continue; |
| 524 | |
| 525 | strbuf_addf(&buf, "import %s\n", |
| 526 | posn->symref ? posn->symref : posn->name); |
| 527 | sendline(data, &buf); |
| 528 | strbuf_reset(&buf); |
| 529 | } |
| 530 | |
| 531 | write_constant(data->helper->in, "\n"); |
| 532 | /* |
| 533 | * remote-helpers that advertise the bidi-import capability are required to |
| 534 | * buffer the complete batch of import commands until this newline before |
| 535 | * sending data to fast-import. |
| 536 | * These helpers read back data from fast-import on their stdin, which could |
| 537 | * be mixed with import commands, otherwise. |
| 538 | */ |
| 539 | |
| 540 | if (finish_command(&fastimport)) |
| 541 | die(_("error while running fast-import")); |
| 542 | |
| 543 | /* |
| 544 | * The fast-import stream of a remote helper that advertises |
| 545 | * the "refspec" capability writes to the refs named after the |
| 546 | * right hand side of the first refspec matching each ref we |
| 547 | * were fetching. |
| 548 | * |
| 549 | * (If no "refspec" capability was specified, for historical |
| 550 | * reasons we default to the equivalent of *:*.) |
| 551 | * |
| 552 | * Store the result in to_fetch[i].old_sha1. Callers such |
| 553 | * as "git fetch" can use the value to write feedback to the |
| 554 | * terminal, populate FETCH_HEAD, and determine what new value |
| 555 | * should be written to peer_ref if the update is a |
| 556 | * fast-forward or this is a forced update. |
| 557 | */ |
| 558 | for (i = 0; i < nr_heads; i++) { |
| 559 | char *private, *name; |
| 560 | posn = to_fetch[i]; |
| 561 | if (posn->status & REF_STATUS_UPTODATE) |
| 562 | continue; |
| 563 | name = posn->symref ? posn->symref : posn->name; |
| 564 | if (data->rs.nr) |
| 565 | private = apply_refspecs(&data->rs, name); |
| 566 | else |
| 567 | private = xstrdup(name); |
| 568 | if (private) { |
| 569 | if (refs_read_ref(get_main_ref_store(the_repository), private, &posn->old_oid) < 0) |
| 570 | die(_("could not read ref %s"), private); |
| 571 | free(private); |
| 572 | } |
| 573 | } |
| 574 | strbuf_release(&buf); |
| 575 | return 0; |
| 576 | } |
| 577 | |
| 578 | static int run_connect(struct transport *transport, struct strbuf *cmdbuf) |
| 579 | { |
| 580 | struct helper_data *data = transport->data; |
| 581 | int ret = 0; |
| 582 | int duped; |
| 583 | FILE *input; |
| 584 | struct child_process *helper; |
| 585 | |
| 586 | helper = get_helper(transport); |
| 587 | |
| 588 | /* |
| 589 | * Yes, dup the pipe another time, as we need unbuffered version |
| 590 | * of input pipe as FILE*. fclose() closes the underlying fd and |
| 591 | * stream buffering only can be changed before first I/O operation |
| 592 | * on it. |
| 593 | */ |
| 594 | duped = dup(helper->out); |
| 595 | if (duped < 0) |
| 596 | die_errno(_("can't dup helper output fd")); |
| 597 | input = xfdopen(duped, "r"); |
| 598 | setvbuf(input, NULL, _IONBF, 0); |
| 599 | |
| 600 | sendline(data, cmdbuf); |
| 601 | if (recvline_fh(input, cmdbuf)) |
| 602 | exit(128); |
| 603 | |
| 604 | if (!strcmp(cmdbuf->buf, "")) { |
| 605 | data->no_disconnect_req = 1; |
| 606 | if (debug) |
| 607 | fprintf(stderr, "Debug: Smart transport connection " |
| 608 | "ready.\n"); |
| 609 | ret = 1; |
| 610 | } else if (!strcmp(cmdbuf->buf, "fallback")) { |
| 611 | if (debug) |
| 612 | fprintf(stderr, "Debug: Falling back to dumb " |
| 613 | "transport.\n"); |
| 614 | } else { |
| 615 | die(_("unknown response to connect: %s"), |
| 616 | cmdbuf->buf); |
| 617 | } |
| 618 | |
| 619 | fclose(input); |
| 620 | return ret; |
| 621 | } |
| 622 | |
| 623 | static const char *connect_service_cmd(enum git_connect_service service) |
| 624 | { |
| 625 | switch (service) { |
| 626 | case GIT_CONNECT_UPLOAD_PACK: |
| 627 | return "git-upload-pack"; |
| 628 | case GIT_CONNECT_RECEIVE_PACK: |
| 629 | return "git-receive-pack"; |
| 630 | case GIT_CONNECT_UPLOAD_ARCHIVE: |
| 631 | return "git-upload-archive"; |
| 632 | } |
| 633 | BUG("unknown git_connect_service: %d", service); |
| 634 | } |
| 635 | |
| 636 | static int process_connect_service(struct transport *transport, |
| 637 | enum git_connect_service service, |
| 638 | const char *exec) |
| 639 | { |
| 640 | struct helper_data *data = transport->data; |
| 641 | struct strbuf cmdbuf = STRBUF_INIT; |
| 642 | int ret = 0; |
| 643 | |
| 644 | /* |
| 645 | * Handle --upload-pack and friends. This is fire and forget... |
| 646 | * just warn if it fails. |
| 647 | */ |
| 648 | if (strcmp(connect_service_cmd(service), exec)) { |
| 649 | int r = set_helper_option(transport, "servpath", exec); |
| 650 | if (r > 0) |
| 651 | warning(_("setting remote service path not supported by protocol")); |
| 652 | else if (r < 0) |
| 653 | warning(_("invalid remote service path")); |
| 654 | } |
| 655 | |
| 656 | if (data->connect) { |
| 657 | strbuf_addf(&cmdbuf, "connect %s\n", |
| 658 | connect_service_cmd(service)); |
| 659 | ret = run_connect(transport, &cmdbuf); |
| 660 | } else if (data->stateless_connect && |
| 661 | (get_protocol_version_config() == protocol_v2) && |
| 662 | (service == GIT_CONNECT_UPLOAD_PACK || |
| 663 | service == GIT_CONNECT_UPLOAD_ARCHIVE)) { |
| 664 | strbuf_addf(&cmdbuf, "stateless-connect %s\n", |
| 665 | connect_service_cmd(service)); |
| 666 | ret = run_connect(transport, &cmdbuf); |
| 667 | if (ret) |
| 668 | transport->stateless_rpc = 1; |
| 669 | } |
| 670 | |
| 671 | strbuf_release(&cmdbuf); |
| 672 | return ret; |
| 673 | } |
| 674 | |
| 675 | static int process_connect(struct transport *transport, |
| 676 | int for_push) |
| 677 | { |
| 678 | struct helper_data *data = transport->data; |
| 679 | enum git_connect_service service; |
| 680 | const char *exec; |
| 681 | int ret; |
| 682 | |
| 683 | service = for_push ? GIT_CONNECT_RECEIVE_PACK : GIT_CONNECT_UPLOAD_PACK; |
| 684 | if (for_push) |
| 685 | exec = data->transport_options.receivepack; |
| 686 | else |
| 687 | exec = data->transport_options.uploadpack; |
| 688 | |
| 689 | ret = process_connect_service(transport, service, exec); |
| 690 | if (ret) |
| 691 | do_take_over(transport); |
| 692 | return ret; |
| 693 | } |
| 694 | |
| 695 | static int connect_helper(struct transport *transport, enum git_connect_service service, |
| 696 | const char *exec, int fd[2]) |
| 697 | { |
| 698 | struct helper_data *data = transport->data; |
| 699 | |
| 700 | /* Get_helper so connect is inited. */ |
| 701 | get_helper(transport); |
| 702 | |
| 703 | if (!process_connect_service(transport, service, exec)) |
| 704 | die(_("can't connect to subservice %s"), |
| 705 | connect_service_cmd(service)); |
| 706 | |
| 707 | fd[0] = data->helper->out; |
| 708 | fd[1] = data->helper->in; |
| 709 | |
| 710 | do_take_over(transport); |
| 711 | return 0; |
| 712 | } |
| 713 | |
| 714 | static struct ref *get_refs_list_using_list(struct transport *transport, |
| 715 | int for_push); |
| 716 | |
| 717 | static int fetch_refs(struct transport *transport, |
| 718 | int nr_heads, struct ref **to_fetch) |
| 719 | { |
| 720 | struct helper_data *data = transport->data; |
| 721 | int i, count; |
| 722 | |
| 723 | get_helper(transport); |
| 724 | |
| 725 | if (process_connect(transport, 0)) |
| 726 | return transport->vtable->fetch_refs(transport, nr_heads, to_fetch); |
| 727 | |
| 728 | /* |
| 729 | * If we reach here, then the server, the client, and/or the transport |
| 730 | * helper does not support protocol v2. --negotiate-only requires |
| 731 | * protocol v2. |
| 732 | */ |
| 733 | if (data->transport_options.acked_commits) { |
| 734 | warning(_("--negotiate-only requires protocol v2")); |
| 735 | return -1; |
| 736 | } |
| 737 | |
| 738 | if (!data->get_refs_list_called) { |
| 739 | /* |
| 740 | * We do not care about the list of refs returned, but only |
| 741 | * that the "list" command was sent. |
| 742 | */ |
| 743 | struct ref *dummy = get_refs_list_using_list(transport, 0); |
| 744 | free_refs(dummy); |
| 745 | } |
| 746 | |
| 747 | count = 0; |
| 748 | for (i = 0; i < nr_heads; i++) |
| 749 | if (!(to_fetch[i]->status & REF_STATUS_UPTODATE)) |
| 750 | count++; |
| 751 | |
| 752 | if (!count) |
| 753 | return 0; |
| 754 | |
| 755 | if (data->check_connectivity && |
| 756 | data->transport_options.check_self_contained_and_connected) |
| 757 | set_helper_option(transport, "check-connectivity", "true"); |
| 758 | |
| 759 | if (transport->cloning) |
| 760 | set_helper_option(transport, "cloning", "true"); |
| 761 | |
| 762 | if (data->transport_options.update_shallow) |
| 763 | set_helper_option(transport, "update-shallow", "true"); |
| 764 | |
| 765 | if (data->transport_options.refetch) |
| 766 | set_helper_option(transport, "refetch", "true"); |
| 767 | |
| 768 | if (data->transport_options.filter_options.choice) { |
| 769 | const char *spec = expand_list_objects_filter_spec( |
| 770 | &data->transport_options.filter_options); |
| 771 | set_helper_option(transport, "filter", spec); |
| 772 | } |
| 773 | |
| 774 | if (data->transport_options.negotiation_restrict_tips) |
| 775 | warning(_("ignoring %s because the protocol does not support it."), |
| 776 | "--negotiation-restrict"); |
| 777 | |
| 778 | if (data->fetch) |
| 779 | return fetch_with_fetch(transport, nr_heads, to_fetch); |
| 780 | |
| 781 | if (data->import) |
| 782 | return fetch_with_import(transport, nr_heads, to_fetch); |
| 783 | |
| 784 | return -1; |
| 785 | } |
| 786 | |
| 787 | struct push_update_ref_state { |
| 788 | struct ref *hint; |
| 789 | struct ref_push_report *report; |
| 790 | int new_report; |
| 791 | }; |
| 792 | |
| 793 | static int push_update_ref_status(struct strbuf *buf, |
| 794 | struct push_update_ref_state *state, |
| 795 | struct ref *remote_refs) |
| 796 | { |
| 797 | char *refname, *msg; |
| 798 | int status, forced = 0; |
| 799 | |
| 800 | if (starts_with(buf->buf, "option ")) { |
| 801 | struct object_id old_oid, new_oid; |
| 802 | char *key; |
| 803 | const char *val; |
| 804 | char *p; |
| 805 | |
| 806 | if (!state->hint || !(state->report || state->new_report)) |
| 807 | die(_("'option' without a matching 'ok/error' directive")); |
| 808 | if (state->new_report) { |
| 809 | if (!state->hint->report) { |
| 810 | CALLOC_ARRAY(state->hint->report, 1); |
| 811 | state->report = state->hint->report; |
| 812 | } else { |
| 813 | state->report = state->hint->report; |
| 814 | while (state->report->next) |
| 815 | state->report = state->report->next; |
| 816 | CALLOC_ARRAY(state->report->next, 1); |
| 817 | state->report = state->report->next; |
| 818 | } |
| 819 | state->new_report = 0; |
| 820 | } |
| 821 | key = buf->buf + 7; |
| 822 | p = strchr(key, ' '); |
| 823 | if (p) |
| 824 | *p++ = '\0'; |
| 825 | val = p; |
| 826 | if (!strcmp(key, "refname")) |
| 827 | state->report->ref_name = xstrdup_or_null(val); |
| 828 | else if (!strcmp(key, "old-oid") && val && |
| 829 | !parse_oid_hex(val, &old_oid, &val)) |
| 830 | state->report->old_oid = oiddup(&old_oid); |
| 831 | else if (!strcmp(key, "new-oid") && val && |
| 832 | !parse_oid_hex(val, &new_oid, &val)) |
| 833 | state->report->new_oid = oiddup(&new_oid); |
| 834 | else if (!strcmp(key, "forced-update")) |
| 835 | state->report->forced_update = 1; |
| 836 | /* Not update remote namespace again. */ |
| 837 | return 1; |
| 838 | } |
| 839 | |
| 840 | state->report = NULL; |
| 841 | state->new_report = 0; |
| 842 | |
| 843 | if (starts_with(buf->buf, "ok ")) { |
| 844 | status = REF_STATUS_OK; |
| 845 | refname = buf->buf + 3; |
| 846 | } else if (starts_with(buf->buf, "error ")) { |
| 847 | status = REF_STATUS_REMOTE_REJECT; |
| 848 | refname = buf->buf + 6; |
| 849 | } else |
| 850 | die(_("expected ok/error, helper said '%s'"), buf->buf); |
| 851 | |
| 852 | msg = strchr(refname, ' '); |
| 853 | if (msg) { |
| 854 | struct strbuf msg_buf = STRBUF_INIT; |
| 855 | const char *end; |
| 856 | |
| 857 | *msg++ = '\0'; |
| 858 | if (!unquote_c_style(&msg_buf, msg, &end)) |
| 859 | msg = strbuf_detach(&msg_buf, NULL); |
| 860 | else |
| 861 | msg = xstrdup(msg); |
| 862 | strbuf_release(&msg_buf); |
| 863 | |
| 864 | if (!strcmp(msg, "no match")) { |
| 865 | status = REF_STATUS_NONE; |
| 866 | FREE_AND_NULL(msg); |
| 867 | } |
| 868 | else if (!strcmp(msg, "up to date")) { |
| 869 | status = REF_STATUS_UPTODATE; |
| 870 | FREE_AND_NULL(msg); |
| 871 | } |
| 872 | else if (!strcmp(msg, "non-fast forward")) { |
| 873 | status = REF_STATUS_REJECT_NONFASTFORWARD; |
| 874 | FREE_AND_NULL(msg); |
| 875 | } |
| 876 | else if (!strcmp(msg, "already exists")) { |
| 877 | status = REF_STATUS_REJECT_ALREADY_EXISTS; |
| 878 | FREE_AND_NULL(msg); |
| 879 | } |
| 880 | else if (!strcmp(msg, "fetch first")) { |
| 881 | status = REF_STATUS_REJECT_FETCH_FIRST; |
| 882 | FREE_AND_NULL(msg); |
| 883 | } |
| 884 | else if (!strcmp(msg, "needs force")) { |
| 885 | status = REF_STATUS_REJECT_NEEDS_FORCE; |
| 886 | FREE_AND_NULL(msg); |
| 887 | } |
| 888 | else if (!strcmp(msg, "stale info")) { |
| 889 | status = REF_STATUS_REJECT_STALE; |
| 890 | FREE_AND_NULL(msg); |
| 891 | } |
| 892 | else if (!strcmp(msg, "remote ref updated since checkout")) { |
| 893 | status = REF_STATUS_REJECT_REMOTE_UPDATED; |
| 894 | FREE_AND_NULL(msg); |
| 895 | } |
| 896 | else if (!strcmp(msg, "forced update")) { |
| 897 | forced = 1; |
| 898 | FREE_AND_NULL(msg); |
| 899 | } |
| 900 | else if (!strcmp(msg, "expecting report")) { |
| 901 | status = REF_STATUS_EXPECTING_REPORT; |
| 902 | FREE_AND_NULL(msg); |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | if (state->hint) |
| 907 | state->hint = find_ref_by_name(state->hint, refname); |
| 908 | if (!state->hint) |
| 909 | state->hint = find_ref_by_name(remote_refs, refname); |
| 910 | if (!state->hint) { |
| 911 | warning(_("helper reported unexpected status of %s"), refname); |
| 912 | return 1; |
| 913 | } |
| 914 | |
| 915 | if (state->hint->status != REF_STATUS_NONE) { |
| 916 | /* |
| 917 | * Earlier, the ref was marked not to be pushed, so ignore the ref |
| 918 | * status reported by the remote helper if the latter is 'no match'. |
| 919 | */ |
| 920 | if (status == REF_STATUS_NONE) |
| 921 | return 1; |
| 922 | } |
| 923 | |
| 924 | if (status == REF_STATUS_OK) |
| 925 | state->new_report = 1; |
| 926 | state->hint->status = status; |
| 927 | state->hint->forced_update |= forced; |
| 928 | state->hint->remote_status = msg; |
| 929 | return !(status == REF_STATUS_OK); |
| 930 | } |
| 931 | |
| 932 | static int push_update_refs_status(struct helper_data *data, |
| 933 | struct ref *remote_refs, |
| 934 | int flags) |
| 935 | { |
| 936 | struct ref *ref; |
| 937 | struct ref_push_report *report; |
| 938 | struct strbuf buf = STRBUF_INIT; |
| 939 | struct push_update_ref_state state = { remote_refs, NULL, 0 }; |
| 940 | |
| 941 | for (;;) { |
| 942 | if (recvline(data, &buf)) { |
| 943 | strbuf_release(&buf); |
| 944 | return 1; |
| 945 | } |
| 946 | if (!buf.len) |
| 947 | break; |
| 948 | push_update_ref_status(&buf, &state, remote_refs); |
| 949 | } |
| 950 | strbuf_release(&buf); |
| 951 | |
| 952 | if (flags & TRANSPORT_PUSH_DRY_RUN || !data->rs.nr || data->no_private_update) |
| 953 | return 0; |
| 954 | |
| 955 | /* propagate back the update to the remote namespace */ |
| 956 | for (ref = remote_refs; ref; ref = ref->next) { |
| 957 | char *private; |
| 958 | |
| 959 | if (ref->status != REF_STATUS_OK) |
| 960 | continue; |
| 961 | |
| 962 | if (!ref->report) { |
| 963 | private = apply_refspecs(&data->rs, ref->name); |
| 964 | if (!private) |
| 965 | continue; |
| 966 | refs_update_ref(get_main_ref_store(the_repository), |
| 967 | "update by helper", private, |
| 968 | &(ref->new_oid), |
| 969 | NULL, 0, 0); |
| 970 | free(private); |
| 971 | } else { |
| 972 | for (report = ref->report; report; report = report->next) { |
| 973 | private = apply_refspecs(&data->rs, |
| 974 | report->ref_name |
| 975 | ? report->ref_name |
| 976 | : ref->name); |
| 977 | if (!private) |
| 978 | continue; |
| 979 | refs_update_ref(get_main_ref_store(the_repository), |
| 980 | "update by helper", private, |
| 981 | report->new_oid |
| 982 | ? report->new_oid |
| 983 | : &(ref->new_oid), |
| 984 | NULL, 0, 0); |
| 985 | free(private); |
| 986 | } |
| 987 | } |
| 988 | } |
| 989 | return 0; |
| 990 | } |
| 991 | |
| 992 | static void set_common_push_options(struct transport *transport, |
| 993 | const char *name, int flags) |
| 994 | { |
| 995 | if (flags & TRANSPORT_PUSH_DRY_RUN) { |
| 996 | if (set_helper_option(transport, "dry-run", "true") != 0) |
| 997 | die(_("helper %s does not support dry-run"), name); |
| 998 | } else if (flags & TRANSPORT_PUSH_CERT_ALWAYS) { |
| 999 | if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "true") != 0) |
| 1000 | die(_("helper %s does not support --signed"), name); |
| 1001 | } else if (flags & TRANSPORT_PUSH_CERT_IF_ASKED) { |
| 1002 | if (set_helper_option(transport, TRANS_OPT_PUSH_CERT, "if-asked") != 0) |
| 1003 | die(_("helper %s does not support --signed=if-asked"), name); |
| 1004 | } |
| 1005 | |
| 1006 | if (flags & TRANSPORT_PUSH_ATOMIC) |
| 1007 | if (set_helper_option(transport, TRANS_OPT_ATOMIC, "true") != 0) |
| 1008 | die(_("helper %s does not support --atomic"), name); |
| 1009 | |
| 1010 | if (flags & TRANSPORT_PUSH_FORCE_IF_INCLUDES) |
| 1011 | if (set_helper_option(transport, TRANS_OPT_FORCE_IF_INCLUDES, "true") != 0) |
| 1012 | die(_("helper %s does not support --%s"), |
| 1013 | name, TRANS_OPT_FORCE_IF_INCLUDES); |
| 1014 | |
| 1015 | if (flags & TRANSPORT_PUSH_OPTIONS) { |
| 1016 | struct string_list_item *item; |
| 1017 | for_each_string_list_item(item, transport->push_options) |
| 1018 | if (set_helper_option(transport, "push-option", item->string) != 0) |
| 1019 | die(_("helper %s does not support 'push-option'"), name); |
| 1020 | } |
| 1021 | } |
| 1022 | |
| 1023 | static int push_refs_with_push(struct transport *transport, |
| 1024 | struct ref *remote_refs, int flags) |
| 1025 | { |
| 1026 | int force_all = flags & TRANSPORT_PUSH_FORCE; |
| 1027 | int mirror = flags & TRANSPORT_PUSH_MIRROR; |
| 1028 | int atomic = flags & TRANSPORT_PUSH_ATOMIC; |
| 1029 | struct helper_data *data = transport->data; |
| 1030 | struct strbuf buf = STRBUF_INIT; |
| 1031 | struct ref *ref; |
| 1032 | struct string_list cas_options = STRING_LIST_INIT_DUP; |
| 1033 | struct string_list_item *cas_option; |
| 1034 | |
| 1035 | get_helper(transport); |
| 1036 | if (!data->push) |
| 1037 | return 1; |
| 1038 | |
| 1039 | for (ref = remote_refs; ref; ref = ref->next) { |
| 1040 | if (!ref->peer_ref && !mirror) |
| 1041 | continue; |
| 1042 | |
| 1043 | /* Check for statuses set by set_ref_status_for_push() */ |
| 1044 | switch (ref->status) { |
| 1045 | case REF_STATUS_REJECT_NONFASTFORWARD: |
| 1046 | case REF_STATUS_REJECT_STALE: |
| 1047 | case REF_STATUS_REJECT_ALREADY_EXISTS: |
| 1048 | case REF_STATUS_REJECT_REMOTE_UPDATED: |
| 1049 | if (atomic) { |
| 1050 | reject_atomic_push(remote_refs, mirror); |
| 1051 | string_list_clear(&cas_options, 0); |
| 1052 | strbuf_release(&buf); |
| 1053 | return 0; |
| 1054 | } else |
| 1055 | continue; |
| 1056 | case REF_STATUS_UPTODATE: |
| 1057 | continue; |
| 1058 | default: |
| 1059 | ; /* do nothing */ |
| 1060 | } |
| 1061 | |
| 1062 | if (force_all) |
| 1063 | ref->force = 1; |
| 1064 | |
| 1065 | strbuf_addstr(&buf, "push "); |
| 1066 | if (!ref->deletion) { |
| 1067 | if (ref->force) |
| 1068 | strbuf_addch(&buf, '+'); |
| 1069 | if (ref->peer_ref) |
| 1070 | strbuf_addstr(&buf, ref->peer_ref->name); |
| 1071 | else |
| 1072 | strbuf_add_oid_hex(&buf, &ref->new_oid); |
| 1073 | } |
| 1074 | strbuf_addch(&buf, ':'); |
| 1075 | strbuf_addstr(&buf, ref->name); |
| 1076 | strbuf_addch(&buf, '\n'); |
| 1077 | |
| 1078 | /* |
| 1079 | * The "--force-with-lease" options without explicit |
| 1080 | * values to expect have already been expanded into |
| 1081 | * the ref->old_oid_expect[] field; we can ignore |
| 1082 | * transport->smart_options->cas altogether and instead |
| 1083 | * can enumerate them from the refs. |
| 1084 | */ |
| 1085 | if (ref->expect_old_sha1) { |
| 1086 | struct strbuf cas = STRBUF_INIT; |
| 1087 | strbuf_addf(&cas, "%s:%s", |
| 1088 | ref->name, oid_to_hex(&ref->old_oid_expect)); |
| 1089 | string_list_append_nodup(&cas_options, |
| 1090 | strbuf_detach(&cas, NULL)); |
| 1091 | } |
| 1092 | } |
| 1093 | if (buf.len == 0) { |
| 1094 | string_list_clear(&cas_options, 0); |
| 1095 | return 0; |
| 1096 | } |
| 1097 | |
| 1098 | for_each_string_list_item(cas_option, &cas_options) |
| 1099 | set_helper_option(transport, "cas", cas_option->string); |
| 1100 | set_common_push_options(transport, data->name, flags); |
| 1101 | |
| 1102 | strbuf_addch(&buf, '\n'); |
| 1103 | sendline(data, &buf); |
| 1104 | strbuf_release(&buf); |
| 1105 | string_list_clear(&cas_options, 0); |
| 1106 | |
| 1107 | return push_update_refs_status(data, remote_refs, flags); |
| 1108 | } |
| 1109 | |
| 1110 | static int push_refs_with_export(struct transport *transport, |
| 1111 | struct ref *remote_refs, int flags) |
| 1112 | { |
| 1113 | struct ref *ref; |
| 1114 | struct child_process *helper, exporter; |
| 1115 | struct helper_data *data = transport->data; |
| 1116 | struct string_list revlist_args = STRING_LIST_INIT_DUP; |
| 1117 | struct strbuf buf = STRBUF_INIT; |
| 1118 | |
| 1119 | if (!data->rs.nr) |
| 1120 | die(_("remote-helper doesn't support push; refspec needed")); |
| 1121 | |
| 1122 | set_common_push_options(transport, data->name, flags); |
| 1123 | if (flags & TRANSPORT_PUSH_FORCE) { |
| 1124 | if (set_helper_option(transport, "force", "true") != 0) |
| 1125 | warning(_("helper %s does not support '--force'"), data->name); |
| 1126 | } |
| 1127 | |
| 1128 | helper = get_helper(transport); |
| 1129 | |
| 1130 | write_constant(helper->in, "export\n"); |
| 1131 | |
| 1132 | for (ref = remote_refs; ref; ref = ref->next) { |
| 1133 | char *private; |
| 1134 | struct object_id oid; |
| 1135 | |
| 1136 | private = apply_refspecs(&data->rs, ref->name); |
| 1137 | if (private && !repo_get_oid(the_repository, private, &oid)) { |
| 1138 | strbuf_addf(&buf, "^%s", private); |
| 1139 | string_list_append_nodup(&revlist_args, |
| 1140 | strbuf_detach(&buf, NULL)); |
| 1141 | oidcpy(&ref->old_oid, &oid); |
| 1142 | } |
| 1143 | free(private); |
| 1144 | |
| 1145 | if (ref->peer_ref) { |
| 1146 | if (strcmp(ref->name, ref->peer_ref->name)) { |
| 1147 | if (!ref->deletion) { |
| 1148 | const char *name; |
| 1149 | int flag; |
| 1150 | |
| 1151 | /* Follow symbolic refs (mainly for HEAD). */ |
| 1152 | name = refs_resolve_ref_unsafe(get_main_ref_store(the_repository), |
| 1153 | ref->peer_ref->name, |
| 1154 | RESOLVE_REF_READING, |
| 1155 | &oid, |
| 1156 | &flag); |
| 1157 | if (!name || !(flag & REF_ISSYMREF)) |
| 1158 | name = ref->peer_ref->name; |
| 1159 | |
| 1160 | strbuf_addf(&buf, "%s:%s", name, ref->name); |
| 1161 | } else |
| 1162 | strbuf_addf(&buf, ":%s", ref->name); |
| 1163 | |
| 1164 | string_list_append(&revlist_args, "--refspec"); |
| 1165 | string_list_append(&revlist_args, buf.buf); |
| 1166 | strbuf_release(&buf); |
| 1167 | } |
| 1168 | if (!ref->deletion) |
| 1169 | string_list_append(&revlist_args, ref->peer_ref->name); |
| 1170 | } |
| 1171 | } |
| 1172 | |
| 1173 | if (get_exporter(transport, &exporter, &revlist_args)) |
| 1174 | die(_("couldn't run fast-export")); |
| 1175 | |
| 1176 | string_list_clear(&revlist_args, 1); |
| 1177 | |
| 1178 | if (finish_command(&exporter)) |
| 1179 | die(_("error while running fast-export")); |
| 1180 | if (push_update_refs_status(data, remote_refs, flags)) |
| 1181 | return 1; |
| 1182 | |
| 1183 | if (data->export_marks) { |
| 1184 | strbuf_addf(&buf, "%s.tmp", data->export_marks); |
| 1185 | rename(buf.buf, data->export_marks); |
| 1186 | strbuf_release(&buf); |
| 1187 | } |
| 1188 | |
| 1189 | return 0; |
| 1190 | } |
| 1191 | |
| 1192 | static int push_refs(struct transport *transport, |
| 1193 | struct ref *remote_refs, int flags) |
| 1194 | { |
| 1195 | struct helper_data *data = transport->data; |
| 1196 | |
| 1197 | if (process_connect(transport, 1)) |
| 1198 | return transport->vtable->push_refs(transport, remote_refs, flags); |
| 1199 | |
| 1200 | if (!remote_refs) { |
| 1201 | fprintf(stderr, |
| 1202 | _("No refs in common and none specified; doing nothing.\n" |
| 1203 | "Perhaps you should specify a branch.\n")); |
| 1204 | return 0; |
| 1205 | } |
| 1206 | |
| 1207 | if (data->push) |
| 1208 | return push_refs_with_push(transport, remote_refs, flags); |
| 1209 | |
| 1210 | if (data->export) |
| 1211 | return push_refs_with_export(transport, remote_refs, flags); |
| 1212 | |
| 1213 | return -1; |
| 1214 | } |
| 1215 | |
| 1216 | |
| 1217 | static int has_attribute(const char *attrs, const char *attr) |
| 1218 | { |
| 1219 | int len; |
| 1220 | if (!attrs) |
| 1221 | return 0; |
| 1222 | |
| 1223 | len = strlen(attr); |
| 1224 | for (;;) { |
| 1225 | const char *space = strchrnul(attrs, ' '); |
| 1226 | if (len == space - attrs && !strncmp(attrs, attr, len)) |
| 1227 | return 1; |
| 1228 | if (!*space) |
| 1229 | return 0; |
| 1230 | attrs = space + 1; |
| 1231 | } |
| 1232 | } |
| 1233 | |
| 1234 | static struct ref *get_refs_list(struct transport *transport, int for_push, |
| 1235 | struct transport_ls_refs_options *transport_options) |
| 1236 | { |
| 1237 | get_helper(transport); |
| 1238 | |
| 1239 | if (process_connect(transport, for_push)) |
| 1240 | return transport->vtable->get_refs_list(transport, for_push, |
| 1241 | transport_options); |
| 1242 | |
| 1243 | return get_refs_list_using_list(transport, for_push); |
| 1244 | } |
| 1245 | |
| 1246 | static struct ref *get_refs_list_using_list(struct transport *transport, |
| 1247 | int for_push) |
| 1248 | { |
| 1249 | struct helper_data *data = transport->data; |
| 1250 | struct child_process *helper; |
| 1251 | struct ref *ret = NULL; |
| 1252 | struct ref **tail = &ret; |
| 1253 | struct ref *posn; |
| 1254 | struct strbuf buf = STRBUF_INIT; |
| 1255 | |
| 1256 | data->get_refs_list_called = 1; |
| 1257 | helper = get_helper(transport); |
| 1258 | |
| 1259 | if (data->object_format) |
| 1260 | set_helper_option(transport, "object-format", "true"); |
| 1261 | |
| 1262 | if (data->push && for_push) |
| 1263 | write_constant(helper->in, "list for-push\n"); |
| 1264 | else |
| 1265 | write_constant(helper->in, "list\n"); |
| 1266 | |
| 1267 | while (1) { |
| 1268 | char *eov, *eon; |
| 1269 | if (recvline(data, &buf)) |
| 1270 | exit(128); |
| 1271 | |
| 1272 | if (!*buf.buf) |
| 1273 | break; |
| 1274 | else if (buf.buf[0] == ':') { |
| 1275 | const char *value; |
| 1276 | if (skip_prefix(buf.buf, ":object-format ", &value)) { |
| 1277 | int algo = hash_algo_by_name(value); |
| 1278 | if (algo == GIT_HASH_UNKNOWN) |
| 1279 | die(_("unsupported object format '%s'"), |
| 1280 | value); |
| 1281 | transport->hash_algo = &hash_algos[algo]; |
| 1282 | } |
| 1283 | continue; |
| 1284 | } |
| 1285 | |
| 1286 | eov = strchr(buf.buf, ' '); |
| 1287 | if (!eov) |
| 1288 | die(_("malformed response in ref list: %s"), buf.buf); |
| 1289 | eon = strchr(eov + 1, ' '); |
| 1290 | *eov = '\0'; |
| 1291 | if (eon) |
| 1292 | *eon = '\0'; |
| 1293 | *tail = alloc_ref(eov + 1); |
| 1294 | if (buf.buf[0] == '@') |
| 1295 | (*tail)->symref = xstrdup(buf.buf + 1); |
| 1296 | else if (buf.buf[0] != '?') |
| 1297 | get_oid_hex_algop(buf.buf, &(*tail)->old_oid, transport->hash_algo); |
| 1298 | if (eon) { |
| 1299 | if (has_attribute(eon + 1, "unchanged")) { |
| 1300 | (*tail)->status |= REF_STATUS_UPTODATE; |
| 1301 | if (refs_read_ref(get_main_ref_store(the_repository), (*tail)->name, &(*tail)->old_oid) < 0) |
| 1302 | die(_("could not read ref %s"), |
| 1303 | (*tail)->name); |
| 1304 | } |
| 1305 | } |
| 1306 | tail = &((*tail)->next); |
| 1307 | } |
| 1308 | if (debug) |
| 1309 | fprintf(stderr, "Debug: Read ref listing.\n"); |
| 1310 | strbuf_release(&buf); |
| 1311 | |
| 1312 | for (posn = ret; posn; posn = posn->next) |
| 1313 | resolve_remote_symref(posn, ret); |
| 1314 | |
| 1315 | return ret; |
| 1316 | } |
| 1317 | |
| 1318 | static int get_bundle_uri(struct transport *transport) |
| 1319 | { |
| 1320 | get_helper(transport); |
| 1321 | |
| 1322 | if (process_connect(transport, 0)) |
| 1323 | return transport->vtable->get_bundle_uri(transport); |
| 1324 | |
| 1325 | return -1; |
| 1326 | } |
| 1327 | |
| 1328 | static struct transport_vtable vtable = { |
| 1329 | .set_option = set_helper_option, |
| 1330 | .get_refs_list = get_refs_list, |
| 1331 | .get_bundle_uri = get_bundle_uri, |
| 1332 | .fetch_refs = fetch_refs, |
| 1333 | .push_refs = push_refs, |
| 1334 | .connect = connect_helper, |
| 1335 | .disconnect = release_helper |
| 1336 | }; |
| 1337 | |
| 1338 | int transport_helper_init(struct transport *transport, const char *name) |
| 1339 | { |
| 1340 | struct helper_data *data = xcalloc(1, sizeof(*data)); |
| 1341 | data->name = xstrdup(name); |
| 1342 | |
| 1343 | transport_check_allowed(name); |
| 1344 | |
| 1345 | if (getenv("GIT_TRANSPORT_HELPER_DEBUG")) |
| 1346 | debug = 1; |
| 1347 | |
| 1348 | list_objects_filter_init(&data->transport_options.filter_options); |
| 1349 | |
| 1350 | transport->data = data; |
| 1351 | transport->vtable = &vtable; |
| 1352 | transport->smart_options = &(data->transport_options); |
| 1353 | return 0; |
| 1354 | } |
| 1355 | |
| 1356 | /* |
| 1357 | * Linux pipes can buffer 65536 bytes at once (and most platforms can |
| 1358 | * buffer less), so attempt reads and writes with up to that size. |
| 1359 | */ |
| 1360 | #define BUFFERSIZE 65536 |
| 1361 | /* This should be enough to hold debugging message. */ |
| 1362 | #define PBUFFERSIZE 8192 |
| 1363 | |
| 1364 | static int transfer_debug_enabled = -1; |
| 1365 | |
| 1366 | /* Print bidirectional transfer loop debug message. */ |
| 1367 | __attribute__((format (printf, 1, 2))) |
| 1368 | static void transfer_debug(const char *fmt, ...) |
| 1369 | { |
| 1370 | va_list args; |
| 1371 | char msgbuf[PBUFFERSIZE]; |
| 1372 | |
| 1373 | if (transfer_debug_enabled < 0) |
| 1374 | BUG("somebody forgot to check GIT_TRANSLOOP_DEBUG!"); |
| 1375 | if (!transfer_debug_enabled) |
| 1376 | return; |
| 1377 | |
| 1378 | va_start(args, fmt); |
| 1379 | vsnprintf(msgbuf, PBUFFERSIZE, fmt, args); |
| 1380 | va_end(args); |
| 1381 | fprintf(stderr, "Transfer loop debugging: %s\n", msgbuf); |
| 1382 | } |
| 1383 | |
| 1384 | /* Stream state: More data may be coming in this direction. */ |
| 1385 | #define SSTATE_TRANSFERRING 0 |
| 1386 | /* |
| 1387 | * Stream state: No more data coming in this direction, flushing rest of |
| 1388 | * data. |
| 1389 | */ |
| 1390 | #define SSTATE_FLUSHING 1 |
| 1391 | /* Stream state: Transfer in this direction finished. */ |
| 1392 | #define SSTATE_FINISHED 2 |
| 1393 | |
| 1394 | #define STATE_NEEDS_READING(state) ((state) <= SSTATE_TRANSFERRING) |
| 1395 | #define STATE_NEEDS_WRITING(state) ((state) <= SSTATE_FLUSHING) |
| 1396 | #define STATE_NEEDS_CLOSING(state) ((state) == SSTATE_FLUSHING) |
| 1397 | |
| 1398 | /* Unidirectional transfer. */ |
| 1399 | struct unidirectional_transfer { |
| 1400 | /* Source */ |
| 1401 | int src; |
| 1402 | /* Destination */ |
| 1403 | int dest; |
| 1404 | /* Is source socket? */ |
| 1405 | int src_is_sock; |
| 1406 | /* Is destination socket? */ |
| 1407 | int dest_is_sock; |
| 1408 | /* Transfer state (TRANSFERRING/FLUSHING/FINISHED) */ |
| 1409 | int state; |
| 1410 | /* Buffer. */ |
| 1411 | char buf[BUFFERSIZE]; |
| 1412 | /* Buffer used. */ |
| 1413 | size_t bufuse; |
| 1414 | /* Name of source. */ |
| 1415 | const char *src_name; |
| 1416 | /* Name of destination. */ |
| 1417 | const char *dest_name; |
| 1418 | }; |
| 1419 | |
| 1420 | /* Closes the target (for writing) if transfer has finished. */ |
| 1421 | static void udt_close_if_finished(struct unidirectional_transfer *t) |
| 1422 | { |
| 1423 | if (STATE_NEEDS_CLOSING(t->state) && !t->bufuse) { |
| 1424 | t->state = SSTATE_FINISHED; |
| 1425 | if (t->dest_is_sock) |
| 1426 | shutdown(t->dest, SHUT_WR); |
| 1427 | else |
| 1428 | close(t->dest); |
| 1429 | transfer_debug("Closed %s.", t->dest_name); |
| 1430 | } |
| 1431 | } |
| 1432 | |
| 1433 | /* |
| 1434 | * Tries to read data from source into buffer. If buffer is full, |
| 1435 | * no data is read. Returns 0 on success, -1 on error. |
| 1436 | */ |
| 1437 | static int udt_do_read(struct unidirectional_transfer *t) |
| 1438 | { |
| 1439 | ssize_t bytes; |
| 1440 | |
| 1441 | if (t->bufuse == BUFFERSIZE) |
| 1442 | return 0; /* No space for more. */ |
| 1443 | |
| 1444 | transfer_debug("%s is readable", t->src_name); |
| 1445 | bytes = xread(t->src, t->buf + t->bufuse, BUFFERSIZE - t->bufuse); |
| 1446 | if (bytes < 0) { |
| 1447 | error_errno(_("read(%s) failed"), t->src_name); |
| 1448 | return -1; |
| 1449 | } else if (bytes == 0) { |
| 1450 | transfer_debug("%s EOF (with %i bytes in buffer)", |
| 1451 | t->src_name, (int)t->bufuse); |
| 1452 | t->state = SSTATE_FLUSHING; |
| 1453 | } else { |
| 1454 | t->bufuse += bytes; |
| 1455 | transfer_debug("Read %i bytes from %s (buffer now at %i)", |
| 1456 | (int)bytes, t->src_name, (int)t->bufuse); |
| 1457 | } |
| 1458 | return 0; |
| 1459 | } |
| 1460 | |
| 1461 | /* Tries to write data from buffer into destination. If buffer is empty, |
| 1462 | * no data is written. Returns 0 on success, -1 on error. |
| 1463 | */ |
| 1464 | static int udt_do_write(struct unidirectional_transfer *t) |
| 1465 | { |
| 1466 | ssize_t bytes; |
| 1467 | |
| 1468 | if (t->bufuse == 0) |
| 1469 | return 0; /* Nothing to write. */ |
| 1470 | |
| 1471 | transfer_debug("%s is writable", t->dest_name); |
| 1472 | bytes = xwrite(t->dest, t->buf, t->bufuse); |
| 1473 | if (bytes < 0) { |
| 1474 | error_errno(_("write(%s) failed"), t->dest_name); |
| 1475 | return -1; |
| 1476 | } else if (bytes > 0) { |
| 1477 | t->bufuse -= bytes; |
| 1478 | if (t->bufuse) |
| 1479 | memmove(t->buf, t->buf + bytes, t->bufuse); |
| 1480 | transfer_debug("Wrote %i bytes to %s (buffer now at %i)", |
| 1481 | (int)bytes, t->dest_name, (int)t->bufuse); |
| 1482 | } |
| 1483 | return 0; |
| 1484 | } |
| 1485 | |
| 1486 | |
| 1487 | /* State of bidirectional transfer loop. */ |
| 1488 | struct bidirectional_transfer_state { |
| 1489 | /* Direction from program to git. */ |
| 1490 | struct unidirectional_transfer ptg; |
| 1491 | /* Direction from git to program. */ |
| 1492 | struct unidirectional_transfer gtp; |
| 1493 | }; |
| 1494 | |
| 1495 | static void *udt_copy_task_routine(void *udt) |
| 1496 | { |
| 1497 | struct unidirectional_transfer *t = (struct unidirectional_transfer *)udt; |
| 1498 | while (t->state != SSTATE_FINISHED) { |
| 1499 | if (STATE_NEEDS_READING(t->state)) |
| 1500 | if (udt_do_read(t)) |
| 1501 | return NULL; |
| 1502 | if (STATE_NEEDS_WRITING(t->state)) |
| 1503 | if (udt_do_write(t)) |
| 1504 | return NULL; |
| 1505 | if (STATE_NEEDS_CLOSING(t->state)) |
| 1506 | udt_close_if_finished(t); |
| 1507 | } |
| 1508 | return udt; /* Just some non-NULL value. */ |
| 1509 | } |
| 1510 | |
| 1511 | #ifndef NO_PTHREADS |
| 1512 | |
| 1513 | /* |
| 1514 | * Join thread, with appropriate errors on failure. Name is name for the |
| 1515 | * thread (for error messages). Returns 0 on success, 1 on failure. |
| 1516 | */ |
| 1517 | static int tloop_join(pthread_t thread, const char *name) |
| 1518 | { |
| 1519 | int err; |
| 1520 | void *tret; |
| 1521 | err = pthread_join(thread, &tret); |
| 1522 | if (!tret) { |
| 1523 | error(_("%s thread failed"), name); |
| 1524 | return 1; |
| 1525 | } |
| 1526 | if (err) { |
| 1527 | error(_("%s thread failed to join: %s"), name, strerror(err)); |
| 1528 | return 1; |
| 1529 | } |
| 1530 | return 0; |
| 1531 | } |
| 1532 | |
| 1533 | /* |
| 1534 | * Spawn the transfer tasks and then wait for them. Returns 0 on success, |
| 1535 | * -1 on failure. |
| 1536 | */ |
| 1537 | static int tloop_spawnwait_tasks(struct bidirectional_transfer_state *s) |
| 1538 | { |
| 1539 | pthread_t gtp_thread; |
| 1540 | pthread_t ptg_thread; |
| 1541 | int err; |
| 1542 | int ret = 0; |
| 1543 | err = pthread_create(>p_thread, NULL, udt_copy_task_routine, |
| 1544 | &s->gtp); |
| 1545 | if (err) |
| 1546 | die(_("can't start thread for copying data: %s"), strerror(err)); |
| 1547 | err = pthread_create(&ptg_thread, NULL, udt_copy_task_routine, |
| 1548 | &s->ptg); |
| 1549 | if (err) |
| 1550 | die(_("can't start thread for copying data: %s"), strerror(err)); |
| 1551 | |
| 1552 | ret |= tloop_join(gtp_thread, "Git to program copy"); |
| 1553 | ret |= tloop_join(ptg_thread, "Program to git copy"); |
| 1554 | return ret; |
| 1555 | } |
| 1556 | #else |
| 1557 | |
| 1558 | /* Close the source and target (for writing) for transfer. */ |
| 1559 | static void udt_kill_transfer(struct unidirectional_transfer *t) |
| 1560 | { |
| 1561 | t->state = SSTATE_FINISHED; |
| 1562 | /* |
| 1563 | * Socket read end left open isn't a disaster if nobody |
| 1564 | * attempts to read from it (mingw compat headers do not |
| 1565 | * have SHUT_RD)... |
| 1566 | * |
| 1567 | * We can't fully close the socket since otherwise gtp |
| 1568 | * task would first close the socket it sends data to |
| 1569 | * while closing the ptg file descriptors. |
| 1570 | */ |
| 1571 | if (!t->src_is_sock) |
| 1572 | close(t->src); |
| 1573 | if (t->dest_is_sock) |
| 1574 | shutdown(t->dest, SHUT_WR); |
| 1575 | else |
| 1576 | close(t->dest); |
| 1577 | } |
| 1578 | |
| 1579 | /* |
| 1580 | * Join process, with appropriate errors on failure. Name is name for the |
| 1581 | * process (for error messages). Returns 0 on success, 1 on failure. |
| 1582 | */ |
| 1583 | static int tloop_join(pid_t pid, const char *name) |
| 1584 | { |
| 1585 | int tret; |
| 1586 | if (waitpid(pid, &tret, 0) < 0) { |
| 1587 | error_errno(_("%s process failed to wait"), name); |
| 1588 | return 1; |
| 1589 | } |
| 1590 | if (!WIFEXITED(tret) || WEXITSTATUS(tret)) { |
| 1591 | error(_("%s process failed"), name); |
| 1592 | return 1; |
| 1593 | } |
| 1594 | return 0; |
| 1595 | } |
| 1596 | |
| 1597 | /* |
| 1598 | * Spawn the transfer tasks and then wait for them. Returns 0 on success, |
| 1599 | * -1 on failure. |
| 1600 | */ |
| 1601 | static int tloop_spawnwait_tasks(struct bidirectional_transfer_state *s) |
| 1602 | { |
| 1603 | pid_t pid1, pid2; |
| 1604 | int ret = 0; |
| 1605 | |
| 1606 | /* Fork thread #1: git to program. */ |
| 1607 | pid1 = fork(); |
| 1608 | if (pid1 < 0) |
| 1609 | die_errno(_("can't start thread for copying data")); |
| 1610 | else if (pid1 == 0) { |
| 1611 | udt_kill_transfer(&s->ptg); |
| 1612 | exit(udt_copy_task_routine(&s->gtp) ? 0 : 1); |
| 1613 | } |
| 1614 | |
| 1615 | /* Fork thread #2: program to git. */ |
| 1616 | pid2 = fork(); |
| 1617 | if (pid2 < 0) |
| 1618 | die_errno(_("can't start thread for copying data")); |
| 1619 | else if (pid2 == 0) { |
| 1620 | udt_kill_transfer(&s->gtp); |
| 1621 | exit(udt_copy_task_routine(&s->ptg) ? 0 : 1); |
| 1622 | } |
| 1623 | |
| 1624 | /* |
| 1625 | * Close both streams in parent as to not interfere with |
| 1626 | * end of file detection and wait for both tasks to finish. |
| 1627 | */ |
| 1628 | udt_kill_transfer(&s->gtp); |
| 1629 | udt_kill_transfer(&s->ptg); |
| 1630 | ret |= tloop_join(pid1, "Git to program copy"); |
| 1631 | ret |= tloop_join(pid2, "Program to git copy"); |
| 1632 | return ret; |
| 1633 | } |
| 1634 | #endif |
| 1635 | |
| 1636 | /* |
| 1637 | * Copies data from stdin to output and from input to stdout simultaneously. |
| 1638 | * Additionally filtering through given filter. If filter is NULL, uses |
| 1639 | * identity filter. |
| 1640 | */ |
| 1641 | int bidirectional_transfer_loop(int input, int output) |
| 1642 | { |
| 1643 | struct bidirectional_transfer_state state; |
| 1644 | |
| 1645 | if (transfer_debug_enabled < 0) |
| 1646 | transfer_debug_enabled = getenv("GIT_TRANSLOOP_DEBUG") ? 1 : 0; |
| 1647 | |
| 1648 | /* Fill the state fields. */ |
| 1649 | state.ptg.src = input; |
| 1650 | state.ptg.dest = 1; |
| 1651 | state.ptg.src_is_sock = (input == output); |
| 1652 | state.ptg.dest_is_sock = 0; |
| 1653 | state.ptg.state = SSTATE_TRANSFERRING; |
| 1654 | state.ptg.bufuse = 0; |
| 1655 | state.ptg.src_name = "remote input"; |
| 1656 | state.ptg.dest_name = "stdout"; |
| 1657 | |
| 1658 | state.gtp.src = 0; |
| 1659 | state.gtp.dest = output; |
| 1660 | state.gtp.src_is_sock = 0; |
| 1661 | state.gtp.dest_is_sock = (input == output); |
| 1662 | state.gtp.state = SSTATE_TRANSFERRING; |
| 1663 | state.gtp.bufuse = 0; |
| 1664 | state.gtp.src_name = "stdin"; |
| 1665 | state.gtp.dest_name = "remote output"; |
| 1666 | |
| 1667 | return tloop_spawnwait_tasks(&state); |
| 1668 | } |
| 1669 | |
| 1670 | void reject_atomic_push(struct ref *remote_refs, int mirror_mode) |
| 1671 | { |
| 1672 | struct ref *ref; |
| 1673 | |
| 1674 | /* Mark other refs as failed */ |
| 1675 | for (ref = remote_refs; ref; ref = ref->next) { |
| 1676 | if (!ref->peer_ref && !mirror_mode) |
| 1677 | continue; |
| 1678 | |
| 1679 | switch (ref->status) { |
| 1680 | case REF_STATUS_NONE: |
| 1681 | case REF_STATUS_OK: |
| 1682 | case REF_STATUS_EXPECTING_REPORT: |
| 1683 | ref->status = REF_STATUS_ATOMIC_PUSH_FAILED; |
| 1684 | continue; |
| 1685 | default: |
| 1686 | break; /* do nothing */ |
| 1687 | } |
| 1688 | } |
| 1689 | return; |
| 1690 | } |