| 1 | /* |
| 2 | * Builtin "git replace" |
| 3 | * |
| 4 | * Copyright (c) 2008 Christian Couder <chriscool@tuxfamily.org> |
| 5 | * |
| 6 | * Based on builtin/tag.c by Kristian Høgsberg <krh@redhat.com> |
| 7 | * and Carlos Rica <jasampler@gmail.com> that was itself based on |
| 8 | * git-tag.sh and mktag.c by Linus Torvalds. |
| 9 | */ |
| 10 | #define USE_THE_REPOSITORY_VARIABLE |
| 11 | #include "builtin.h" |
| 12 | #include "config.h" |
| 13 | #include "editor.h" |
| 14 | #include "environment.h" |
| 15 | #include "gettext.h" |
| 16 | #include "hex.h" |
| 17 | #include "refs.h" |
| 18 | #include "parse-options.h" |
| 19 | #include "path.h" |
| 20 | #include "run-command.h" |
| 21 | #include "object-file.h" |
| 22 | #include "object-name.h" |
| 23 | #include "odb.h" |
| 24 | #include "replace-object.h" |
| 25 | #include "tag.h" |
| 26 | #include "wildmatch.h" |
| 27 | |
| 28 | static const char * const git_replace_usage[] = { |
| 29 | N_("git replace [-f] <object> <replacement>"), |
| 30 | N_("git replace [-f] --edit <object>"), |
| 31 | N_("git replace [-f] --graft <commit> [<parent>...]"), |
| 32 | "git replace [-f] --convert-graft-file", |
| 33 | N_("git replace -d <object>..."), |
| 34 | N_("git replace [--format=<format>] [-l [<pattern>]]"), |
| 35 | NULL |
| 36 | }; |
| 37 | |
| 38 | enum replace_format { |
| 39 | REPLACE_FORMAT_SHORT, |
| 40 | REPLACE_FORMAT_MEDIUM, |
| 41 | REPLACE_FORMAT_LONG |
| 42 | }; |
| 43 | |
| 44 | struct show_data { |
| 45 | struct repository *repo; |
| 46 | const char *pattern; |
| 47 | enum replace_format format; |
| 48 | }; |
| 49 | |
| 50 | static int show_reference(const struct reference *ref, void *cb_data) |
| 51 | { |
| 52 | struct show_data *data = cb_data; |
| 53 | |
| 54 | if (!wildmatch(data->pattern, ref->name, 0)) { |
| 55 | if (data->format == REPLACE_FORMAT_SHORT) |
| 56 | printf("%s\n", ref->name); |
| 57 | else if (data->format == REPLACE_FORMAT_MEDIUM) |
| 58 | printf("%s -> %s\n", ref->name, oid_to_hex(ref->oid)); |
| 59 | else { /* data->format == REPLACE_FORMAT_LONG */ |
| 60 | struct object_id object; |
| 61 | enum object_type obj_type, repl_type; |
| 62 | |
| 63 | if (repo_get_oid(data->repo, ref->name, &object)) |
| 64 | return error(_("failed to resolve '%s' as a valid ref"), ref->name); |
| 65 | |
| 66 | obj_type = odb_read_object_info(data->repo->objects, &object, NULL); |
| 67 | repl_type = odb_read_object_info(data->repo->objects, ref->oid, NULL); |
| 68 | |
| 69 | printf("%s (%s) -> %s (%s)\n", ref->name, type_name(obj_type), |
| 70 | oid_to_hex(ref->oid), type_name(repl_type)); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | return 0; |
| 75 | } |
| 76 | |
| 77 | static int list_replace_refs(const char *pattern, const char *format) |
| 78 | { |
| 79 | struct show_data data; |
| 80 | |
| 81 | data.repo = the_repository; |
| 82 | if (!pattern) |
| 83 | pattern = "*"; |
| 84 | data.pattern = pattern; |
| 85 | |
| 86 | if (format == NULL || *format == '\0' || !strcmp(format, "short")) |
| 87 | data.format = REPLACE_FORMAT_SHORT; |
| 88 | else if (!strcmp(format, "medium")) |
| 89 | data.format = REPLACE_FORMAT_MEDIUM; |
| 90 | else if (!strcmp(format, "long")) |
| 91 | data.format = REPLACE_FORMAT_LONG; |
| 92 | /* |
| 93 | * Please update _git_replace() in git-completion.bash when |
| 94 | * you add new format |
| 95 | */ |
| 96 | else |
| 97 | return error(_("invalid replace format '%s'\n" |
| 98 | "valid formats are 'short', 'medium' and 'long'"), |
| 99 | format); |
| 100 | |
| 101 | refs_for_each_replace_ref(get_main_ref_store(the_repository), |
| 102 | show_reference, (void *)&data); |
| 103 | |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | typedef int (*each_replace_name_fn)(const char *name, const char *ref, |
| 108 | const struct object_id *oid); |
| 109 | |
| 110 | static int for_each_replace_name(const char **argv, each_replace_name_fn fn) |
| 111 | { |
| 112 | const char **p, *full_hex; |
| 113 | struct strbuf ref = STRBUF_INIT; |
| 114 | size_t base_len; |
| 115 | int had_error = 0; |
| 116 | struct object_id oid; |
| 117 | const char *git_replace_ref_base = ref_namespace[NAMESPACE_REPLACE].ref; |
| 118 | |
| 119 | strbuf_addstr(&ref, git_replace_ref_base); |
| 120 | base_len = ref.len; |
| 121 | |
| 122 | for (p = argv; *p; p++) { |
| 123 | if (repo_get_oid(the_repository, *p, &oid)) { |
| 124 | error("failed to resolve '%s' as a valid ref", *p); |
| 125 | had_error = 1; |
| 126 | continue; |
| 127 | } |
| 128 | |
| 129 | strbuf_setlen(&ref, base_len); |
| 130 | strbuf_add_oid_hex(&ref, &oid); |
| 131 | full_hex = ref.buf + base_len; |
| 132 | |
| 133 | if (refs_read_ref(get_main_ref_store(the_repository), ref.buf, &oid)) { |
| 134 | error(_("replace ref '%s' not found"), full_hex); |
| 135 | had_error = 1; |
| 136 | continue; |
| 137 | } |
| 138 | if (fn(full_hex, ref.buf, &oid)) |
| 139 | had_error = 1; |
| 140 | } |
| 141 | strbuf_release(&ref); |
| 142 | return had_error; |
| 143 | } |
| 144 | |
| 145 | static int delete_replace_ref(const char *name, const char *ref, |
| 146 | const struct object_id *oid) |
| 147 | { |
| 148 | if (refs_delete_ref(get_main_ref_store(the_repository), NULL, ref, oid, 0)) |
| 149 | return 1; |
| 150 | printf_ln(_("Deleted replace ref '%s'"), name); |
| 151 | return 0; |
| 152 | } |
| 153 | |
| 154 | static int check_ref_valid(struct object_id *object, |
| 155 | struct object_id *prev, |
| 156 | struct strbuf *ref, |
| 157 | int force) |
| 158 | { |
| 159 | const char *git_replace_ref_base = ref_namespace[NAMESPACE_REPLACE].ref; |
| 160 | |
| 161 | strbuf_reset(ref); |
| 162 | strbuf_addf(ref, "%s%s", git_replace_ref_base, oid_to_hex(object)); |
| 163 | if (check_refname_format(ref->buf, 0)) |
| 164 | return error(_("'%s' is not a valid ref name"), ref->buf); |
| 165 | |
| 166 | if (refs_read_ref(get_main_ref_store(the_repository), ref->buf, prev)) |
| 167 | oidclr(prev, the_repository->hash_algo); |
| 168 | else if (!force) |
| 169 | return error(_("replace ref '%s' already exists"), ref->buf); |
| 170 | return 0; |
| 171 | } |
| 172 | |
| 173 | static int replace_object_oid(const char *object_ref, |
| 174 | struct object_id *object, |
| 175 | const char *replace_ref, |
| 176 | struct object_id *repl, |
| 177 | int force) |
| 178 | { |
| 179 | struct object_id prev; |
| 180 | enum object_type obj_type, repl_type; |
| 181 | struct strbuf ref = STRBUF_INIT; |
| 182 | struct ref_transaction *transaction; |
| 183 | struct strbuf err = STRBUF_INIT; |
| 184 | int res = 0; |
| 185 | |
| 186 | obj_type = odb_read_object_info(the_repository->objects, object, NULL); |
| 187 | repl_type = odb_read_object_info(the_repository->objects, repl, NULL); |
| 188 | if (!force && obj_type != repl_type) |
| 189 | return error(_("Objects must be of the same type.\n" |
| 190 | "'%s' points to a replaced object of type '%s'\n" |
| 191 | "while '%s' points to a replacement object of " |
| 192 | "type '%s'."), |
| 193 | object_ref, type_name(obj_type), |
| 194 | replace_ref, type_name(repl_type)); |
| 195 | |
| 196 | if (check_ref_valid(object, &prev, &ref, force)) { |
| 197 | strbuf_release(&ref); |
| 198 | return -1; |
| 199 | } |
| 200 | |
| 201 | transaction = ref_store_transaction_begin(get_main_ref_store(the_repository), |
| 202 | 0, &err); |
| 203 | if (!transaction || |
| 204 | ref_transaction_update(transaction, ref.buf, repl, &prev, |
| 205 | NULL, NULL, 0, NULL, &err) || |
| 206 | ref_transaction_commit(transaction, &err)) |
| 207 | res = error("%s", err.buf); |
| 208 | |
| 209 | ref_transaction_free(transaction); |
| 210 | strbuf_release(&ref); |
| 211 | return res; |
| 212 | } |
| 213 | |
| 214 | static int replace_object(const char *object_ref, const char *replace_ref, int force) |
| 215 | { |
| 216 | struct object_id object, repl; |
| 217 | |
| 218 | if (repo_get_oid(the_repository, object_ref, &object)) |
| 219 | return error(_("failed to resolve '%s' as a valid ref"), |
| 220 | object_ref); |
| 221 | if (repo_get_oid(the_repository, replace_ref, &repl)) |
| 222 | return error(_("failed to resolve '%s' as a valid ref"), |
| 223 | replace_ref); |
| 224 | |
| 225 | return replace_object_oid(object_ref, &object, replace_ref, &repl, force); |
| 226 | } |
| 227 | |
| 228 | /* |
| 229 | * Write the contents of the object named by "sha1" to the file "filename". |
| 230 | * If "raw" is true, then the object's raw contents are printed according to |
| 231 | * "type". Otherwise, we pretty-print the contents for human editing. |
| 232 | */ |
| 233 | static int export_object(const struct object_id *oid, enum object_type type, |
| 234 | int raw, const char *filename) |
| 235 | { |
| 236 | struct child_process cmd = CHILD_PROCESS_INIT; |
| 237 | int fd; |
| 238 | |
| 239 | fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0666); |
| 240 | if (fd < 0) |
| 241 | return error_errno(_("unable to open %s for writing"), filename); |
| 242 | |
| 243 | strvec_push(&cmd.args, "--no-replace-objects"); |
| 244 | strvec_push(&cmd.args, "cat-file"); |
| 245 | if (raw) |
| 246 | strvec_push(&cmd.args, type_name(type)); |
| 247 | else |
| 248 | strvec_push(&cmd.args, "-p"); |
| 249 | strvec_push(&cmd.args, oid_to_hex(oid)); |
| 250 | cmd.git_cmd = 1; |
| 251 | cmd.out = fd; |
| 252 | |
| 253 | if (run_command(&cmd)) |
| 254 | return error(_("cat-file reported failure")); |
| 255 | return 0; |
| 256 | } |
| 257 | |
| 258 | /* |
| 259 | * Read a previously-exported (and possibly edited) object back from "filename", |
| 260 | * interpreting it as "type", and writing the result to the object database. |
| 261 | * The sha1 of the written object is returned via sha1. |
| 262 | */ |
| 263 | static int import_object(struct object_id *oid, enum object_type type, |
| 264 | int raw, const char *filename) |
| 265 | { |
| 266 | int fd; |
| 267 | |
| 268 | fd = open(filename, O_RDONLY); |
| 269 | if (fd < 0) |
| 270 | return error_errno(_("unable to open %s for reading"), filename); |
| 271 | |
| 272 | if (!raw && type == OBJ_TREE) { |
| 273 | struct child_process cmd = CHILD_PROCESS_INIT; |
| 274 | struct strbuf result = STRBUF_INIT; |
| 275 | |
| 276 | strvec_push(&cmd.args, "mktree"); |
| 277 | cmd.git_cmd = 1; |
| 278 | cmd.in = fd; |
| 279 | cmd.out = -1; |
| 280 | |
| 281 | if (start_command(&cmd)) { |
| 282 | close(fd); |
| 283 | return error(_("unable to spawn mktree")); |
| 284 | } |
| 285 | |
| 286 | if (strbuf_read(&result, cmd.out, the_hash_algo->hexsz + 1) < 0) { |
| 287 | error_errno(_("unable to read from mktree")); |
| 288 | close(fd); |
| 289 | close(cmd.out); |
| 290 | return -1; |
| 291 | } |
| 292 | close(cmd.out); |
| 293 | |
| 294 | if (finish_command(&cmd)) { |
| 295 | strbuf_release(&result); |
| 296 | return error(_("mktree reported failure")); |
| 297 | } |
| 298 | if (get_oid_hex(result.buf, oid) < 0) { |
| 299 | strbuf_release(&result); |
| 300 | return error(_("mktree did not return an object name")); |
| 301 | } |
| 302 | |
| 303 | strbuf_release(&result); |
| 304 | } else { |
| 305 | struct stat st; |
| 306 | int flags = INDEX_FORMAT_CHECK | INDEX_WRITE_OBJECT; |
| 307 | |
| 308 | if (fstat(fd, &st) < 0) { |
| 309 | error_errno(_("unable to fstat %s"), filename); |
| 310 | close(fd); |
| 311 | return -1; |
| 312 | } |
| 313 | if (index_fd(the_repository->index, oid, fd, &st, type, NULL, flags) < 0) |
| 314 | return error(_("unable to write object to database")); |
| 315 | /* index_fd close()s fd for us */ |
| 316 | } |
| 317 | |
| 318 | /* |
| 319 | * No need to close(fd) here; both run-command and index-fd |
| 320 | * will have done it for us. |
| 321 | */ |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | static int edit_and_replace(const char *object_ref, int force, int raw) |
| 326 | { |
| 327 | char *tmpfile; |
| 328 | enum object_type type; |
| 329 | struct object_id old_oid, new_oid, prev; |
| 330 | struct strbuf ref = STRBUF_INIT; |
| 331 | |
| 332 | if (repo_get_oid(the_repository, object_ref, &old_oid) < 0) |
| 333 | return error(_("not a valid object name: '%s'"), object_ref); |
| 334 | |
| 335 | type = odb_read_object_info(the_repository->objects, &old_oid, NULL); |
| 336 | if (type < 0) |
| 337 | return error(_("unable to get object type for %s"), |
| 338 | oid_to_hex(&old_oid)); |
| 339 | |
| 340 | if (check_ref_valid(&old_oid, &prev, &ref, force)) { |
| 341 | strbuf_release(&ref); |
| 342 | return -1; |
| 343 | } |
| 344 | strbuf_release(&ref); |
| 345 | |
| 346 | tmpfile = repo_git_path(the_repository, "REPLACE_EDITOBJ"); |
| 347 | if (export_object(&old_oid, type, raw, tmpfile)) { |
| 348 | free(tmpfile); |
| 349 | return -1; |
| 350 | } |
| 351 | if (launch_editor(tmpfile, NULL, NULL) < 0) { |
| 352 | free(tmpfile); |
| 353 | return error(_("editing object file failed")); |
| 354 | } |
| 355 | if (import_object(&new_oid, type, raw, tmpfile)) { |
| 356 | free(tmpfile); |
| 357 | return -1; |
| 358 | } |
| 359 | free(tmpfile); |
| 360 | |
| 361 | if (oideq(&old_oid, &new_oid)) |
| 362 | return error(_("new object is the same as the old one: '%s'"), oid_to_hex(&old_oid)); |
| 363 | |
| 364 | return replace_object_oid(object_ref, &old_oid, "replacement", &new_oid, force); |
| 365 | } |
| 366 | |
| 367 | static int replace_parents(struct strbuf *buf, int argc, const char **argv) |
| 368 | { |
| 369 | struct strbuf new_parents = STRBUF_INIT; |
| 370 | const char *parent_start, *parent_end; |
| 371 | int i; |
| 372 | const unsigned hexsz = the_hash_algo->hexsz; |
| 373 | |
| 374 | /* find existing parents */ |
| 375 | parent_start = buf->buf; |
| 376 | parent_start += hexsz + 6; /* "tree " + "hex sha1" + "\n" */ |
| 377 | parent_end = parent_start; |
| 378 | |
| 379 | while (starts_with(parent_end, "parent ")) |
| 380 | parent_end += hexsz + 8; /* "parent " + "hex sha1" + "\n" */ |
| 381 | |
| 382 | /* prepare new parents */ |
| 383 | for (i = 0; i < argc; i++) { |
| 384 | struct object_id oid; |
| 385 | struct commit *commit; |
| 386 | |
| 387 | if (repo_get_oid(the_repository, argv[i], &oid) < 0) { |
| 388 | strbuf_release(&new_parents); |
| 389 | return error(_("not a valid object name: '%s'"), |
| 390 | argv[i]); |
| 391 | } |
| 392 | commit = lookup_commit_reference(the_repository, &oid); |
| 393 | if (!commit) { |
| 394 | strbuf_release(&new_parents); |
| 395 | return error(_("could not parse %s as a commit"), argv[i]); |
| 396 | } |
| 397 | strbuf_addf(&new_parents, "parent %s\n", oid_to_hex(&commit->object.oid)); |
| 398 | } |
| 399 | |
| 400 | /* replace existing parents with new ones */ |
| 401 | strbuf_splice(buf, parent_start - buf->buf, parent_end - parent_start, |
| 402 | new_parents.buf, new_parents.len); |
| 403 | |
| 404 | strbuf_release(&new_parents); |
| 405 | return 0; |
| 406 | } |
| 407 | |
| 408 | struct check_mergetag_data { |
| 409 | int argc; |
| 410 | const char **argv; |
| 411 | }; |
| 412 | |
| 413 | static int check_one_mergetag(struct commit *commit UNUSED, |
| 414 | struct commit_extra_header *extra, |
| 415 | void *data) |
| 416 | { |
| 417 | struct check_mergetag_data *mergetag_data = (struct check_mergetag_data *)data; |
| 418 | const char *ref = mergetag_data->argv[0]; |
| 419 | struct object_id tag_oid; |
| 420 | struct tag *tag; |
| 421 | int i; |
| 422 | |
| 423 | hash_object_file(the_hash_algo, extra->value, extra->len, |
| 424 | OBJ_TAG, &tag_oid); |
| 425 | tag = lookup_tag(the_repository, &tag_oid); |
| 426 | if (!tag) |
| 427 | return error(_("bad mergetag in commit '%s'"), ref); |
| 428 | if (parse_tag_buffer(the_repository, tag, extra->value, extra->len)) |
| 429 | return error(_("malformed mergetag in commit '%s'"), ref); |
| 430 | |
| 431 | /* iterate over new parents */ |
| 432 | for (i = 1; i < mergetag_data->argc; i++) { |
| 433 | struct object_id oid; |
| 434 | if (repo_get_oid(the_repository, mergetag_data->argv[i], &oid) < 0) |
| 435 | return error(_("not a valid object name: '%s'"), |
| 436 | mergetag_data->argv[i]); |
| 437 | if (oideq(get_tagged_oid(tag), &oid)) |
| 438 | return 0; /* found */ |
| 439 | } |
| 440 | |
| 441 | return error(_("original commit '%s' contains mergetag '%s' that is " |
| 442 | "discarded; use --edit instead of --graft"), ref, |
| 443 | oid_to_hex(&tag_oid)); |
| 444 | } |
| 445 | |
| 446 | static int check_mergetags(struct commit *commit, int argc, const char **argv) |
| 447 | { |
| 448 | struct check_mergetag_data mergetag_data; |
| 449 | |
| 450 | mergetag_data.argc = argc; |
| 451 | mergetag_data.argv = argv; |
| 452 | return for_each_mergetag(check_one_mergetag, commit, &mergetag_data); |
| 453 | } |
| 454 | |
| 455 | static int create_graft(int argc, const char **argv, int force, int gentle) |
| 456 | { |
| 457 | struct object_id old_oid, new_oid; |
| 458 | const char *old_ref = argv[0]; |
| 459 | struct commit *commit; |
| 460 | struct strbuf buf = STRBUF_INIT; |
| 461 | const char *buffer; |
| 462 | unsigned long size; |
| 463 | |
| 464 | if (repo_get_oid(the_repository, old_ref, &old_oid) < 0) |
| 465 | return error(_("not a valid object name: '%s'"), old_ref); |
| 466 | commit = lookup_commit_reference(the_repository, &old_oid); |
| 467 | if (!commit) |
| 468 | return error(_("could not parse %s"), old_ref); |
| 469 | |
| 470 | buffer = repo_get_commit_buffer(the_repository, commit, &size); |
| 471 | strbuf_add(&buf, buffer, size); |
| 472 | repo_unuse_commit_buffer(the_repository, commit, buffer); |
| 473 | |
| 474 | if (replace_parents(&buf, argc - 1, &argv[1]) < 0) { |
| 475 | strbuf_release(&buf); |
| 476 | return -1; |
| 477 | } |
| 478 | |
| 479 | if (remove_signature(&buf)) { |
| 480 | warning(_("the original commit '%s' has a gpg signature"), old_ref); |
| 481 | warning(_("the signature will be removed in the replacement commit!")); |
| 482 | } |
| 483 | |
| 484 | if (check_mergetags(commit, argc, argv)) { |
| 485 | strbuf_release(&buf); |
| 486 | return -1; |
| 487 | } |
| 488 | |
| 489 | if (odb_write_object(the_repository->objects, buf.buf, |
| 490 | buf.len, OBJ_COMMIT, &new_oid)) { |
| 491 | strbuf_release(&buf); |
| 492 | return error(_("could not write replacement commit for: '%s'"), |
| 493 | old_ref); |
| 494 | } |
| 495 | |
| 496 | strbuf_release(&buf); |
| 497 | |
| 498 | if (oideq(&commit->object.oid, &new_oid)) { |
| 499 | if (gentle) { |
| 500 | warning(_("graft for '%s' unnecessary"), |
| 501 | oid_to_hex(&commit->object.oid)); |
| 502 | return 0; |
| 503 | } |
| 504 | return error(_("new commit is the same as the old one: '%s'"), |
| 505 | oid_to_hex(&commit->object.oid)); |
| 506 | } |
| 507 | |
| 508 | return replace_object_oid(old_ref, &commit->object.oid, |
| 509 | "replacement", &new_oid, force); |
| 510 | } |
| 511 | |
| 512 | static int convert_graft_file(int force) |
| 513 | { |
| 514 | const char *graft_file = repo_get_graft_file(the_repository); |
| 515 | FILE *fp = fopen_or_warn(graft_file, "r"); |
| 516 | struct strbuf buf = STRBUF_INIT, err = STRBUF_INIT; |
| 517 | struct strvec args = STRVEC_INIT; |
| 518 | |
| 519 | if (!fp) |
| 520 | return -1; |
| 521 | |
| 522 | no_graft_file_deprecated_advice = 1; |
| 523 | while (strbuf_getline(&buf, fp) != EOF) { |
| 524 | if (*buf.buf == '#') |
| 525 | continue; |
| 526 | |
| 527 | strvec_split(&args, buf.buf); |
| 528 | if (args.nr && create_graft(args.nr, args.v, force, 1)) |
| 529 | strbuf_addf(&err, "\n\t%s", buf.buf); |
| 530 | strvec_clear(&args); |
| 531 | } |
| 532 | fclose(fp); |
| 533 | |
| 534 | strbuf_release(&buf); |
| 535 | |
| 536 | if (!err.len) |
| 537 | return unlink_or_warn(graft_file); |
| 538 | |
| 539 | warning(_("could not convert the following graft(s):\n%s"), err.buf); |
| 540 | strbuf_release(&err); |
| 541 | |
| 542 | return -1; |
| 543 | } |
| 544 | |
| 545 | int cmd_replace(int argc, |
| 546 | const char **argv, |
| 547 | const char *prefix, |
| 548 | struct repository *repo UNUSED) |
| 549 | { |
| 550 | int force = 0; |
| 551 | int raw = 0; |
| 552 | const char *format = NULL; |
| 553 | enum { |
| 554 | MODE_UNSPECIFIED = 0, |
| 555 | MODE_LIST, |
| 556 | MODE_DELETE, |
| 557 | MODE_EDIT, |
| 558 | MODE_GRAFT, |
| 559 | MODE_CONVERT_GRAFT_FILE, |
| 560 | MODE_REPLACE |
| 561 | } cmdmode = MODE_UNSPECIFIED; |
| 562 | struct option options[] = { |
| 563 | OPT_CMDMODE('l', "list", &cmdmode, N_("list replace refs"), MODE_LIST), |
| 564 | OPT_CMDMODE('d', "delete", &cmdmode, N_("delete replace refs"), MODE_DELETE), |
| 565 | OPT_CMDMODE('e', "edit", &cmdmode, N_("edit existing object"), MODE_EDIT), |
| 566 | OPT_CMDMODE('g', "graft", &cmdmode, N_("change a commit's parents"), MODE_GRAFT), |
| 567 | OPT_CMDMODE(0, "convert-graft-file", &cmdmode, N_("convert existing graft file"), MODE_CONVERT_GRAFT_FILE), |
| 568 | OPT_BOOL_F('f', "force", &force, N_("replace the ref if it exists"), |
| 569 | PARSE_OPT_NOCOMPLETE), |
| 570 | OPT_BOOL(0, "raw", &raw, N_("do not pretty-print contents for --edit")), |
| 571 | OPT_STRING(0, "format", &format, N_("format"), N_("use this format")), |
| 572 | OPT_END() |
| 573 | }; |
| 574 | |
| 575 | disable_replace_refs(); |
| 576 | repo_config(the_repository, git_default_config, NULL); |
| 577 | |
| 578 | argc = parse_options(argc, argv, prefix, options, git_replace_usage, 0); |
| 579 | |
| 580 | if (!cmdmode) |
| 581 | cmdmode = argc ? MODE_REPLACE : MODE_LIST; |
| 582 | |
| 583 | if (format && cmdmode != MODE_LIST) |
| 584 | usage_msg_opt(_("--format cannot be used when not listing"), |
| 585 | git_replace_usage, options); |
| 586 | |
| 587 | if (force && |
| 588 | cmdmode != MODE_REPLACE && |
| 589 | cmdmode != MODE_EDIT && |
| 590 | cmdmode != MODE_GRAFT && |
| 591 | cmdmode != MODE_CONVERT_GRAFT_FILE) |
| 592 | usage_msg_opt(_("-f only makes sense when writing a replacement"), |
| 593 | git_replace_usage, options); |
| 594 | |
| 595 | if (raw && cmdmode != MODE_EDIT) |
| 596 | usage_msg_opt(_("--raw only makes sense with --edit"), |
| 597 | git_replace_usage, options); |
| 598 | |
| 599 | switch (cmdmode) { |
| 600 | case MODE_DELETE: |
| 601 | if (argc < 1) |
| 602 | usage_msg_opt(_("-d needs at least one argument"), |
| 603 | git_replace_usage, options); |
| 604 | return for_each_replace_name(argv, delete_replace_ref); |
| 605 | |
| 606 | case MODE_REPLACE: |
| 607 | if (argc != 2) |
| 608 | usage_msg_opt(_("bad number of arguments"), |
| 609 | git_replace_usage, options); |
| 610 | return replace_object(argv[0], argv[1], force); |
| 611 | |
| 612 | case MODE_EDIT: |
| 613 | if (argc != 1) |
| 614 | usage_msg_opt(_("-e needs exactly one argument"), |
| 615 | git_replace_usage, options); |
| 616 | return edit_and_replace(argv[0], force, raw); |
| 617 | |
| 618 | case MODE_GRAFT: |
| 619 | if (argc < 1) |
| 620 | usage_msg_opt(_("-g needs at least one argument"), |
| 621 | git_replace_usage, options); |
| 622 | return create_graft(argc, argv, force, 0); |
| 623 | |
| 624 | case MODE_CONVERT_GRAFT_FILE: |
| 625 | if (argc != 0) |
| 626 | usage_msg_opt(_("--convert-graft-file takes no argument"), |
| 627 | git_replace_usage, options); |
| 628 | return !!convert_graft_file(force); |
| 629 | |
| 630 | case MODE_LIST: |
| 631 | if (argc > 1) |
| 632 | usage_msg_opt(_("only one pattern can be given with -l"), |
| 633 | git_replace_usage, options); |
| 634 | return list_replace_refs(argv[0], format); |
| 635 | |
| 636 | default: |
| 637 | BUG("invalid cmdmode %d", (int)cmdmode); |
| 638 | } |
| 639 | } |