| File: | builtin/rev-parse.c |
| Location: | line 500, column 2 |
| Description: | Value stored to 'argc' is never read |
| 1 | /* |
| 2 | * rev-parse.c |
| 3 | * |
| 4 | * Copyright (C) Linus Torvalds, 2005 |
| 5 | */ |
| 6 | #include "cache.h" |
| 7 | #include "commit.h" |
| 8 | #include "refs.h" |
| 9 | #include "quote.h" |
| 10 | #include "builtin.h" |
| 11 | #include "parse-options.h" |
| 12 | #include "diff.h" |
| 13 | #include "revision.h" |
| 14 | #include "split-index.h" |
| 15 | |
| 16 | #define DO_REVS1 1 |
| 17 | #define DO_NOREV2 2 |
| 18 | #define DO_FLAGS4 4 |
| 19 | #define DO_NONFLAGS8 8 |
| 20 | static int filter = ~0; |
| 21 | |
| 22 | static const char *def; |
| 23 | |
| 24 | #define NORMAL0 0 |
| 25 | #define REVERSED1 1 |
| 26 | static int show_type = NORMAL0; |
| 27 | |
| 28 | #define SHOW_SYMBOLIC_ASIS1 1 |
| 29 | #define SHOW_SYMBOLIC_FULL2 2 |
| 30 | static int symbolic; |
| 31 | static int abbrev; |
| 32 | static int abbrev_ref; |
| 33 | static int abbrev_ref_strict; |
| 34 | static int output_sq; |
| 35 | |
| 36 | static int stuck_long; |
| 37 | static struct string_list *ref_excludes; |
| 38 | |
| 39 | /* |
| 40 | * Some arguments are relevant "revision" arguments, |
| 41 | * others are about output format or other details. |
| 42 | * This sorts it all out. |
| 43 | */ |
| 44 | static int is_rev_argument(const char *arg) |
| 45 | { |
| 46 | static const char *rev_args[] = { |
| 47 | "--all", |
| 48 | "--bisect", |
| 49 | "--dense", |
| 50 | "--branches=", |
| 51 | "--branches", |
| 52 | "--header", |
| 53 | "--ignore-missing", |
| 54 | "--max-age=", |
| 55 | "--max-count=", |
| 56 | "--min-age=", |
| 57 | "--no-merges", |
| 58 | "--min-parents=", |
| 59 | "--no-min-parents", |
| 60 | "--max-parents=", |
| 61 | "--no-max-parents", |
| 62 | "--objects", |
| 63 | "--objects-edge", |
| 64 | "--parents", |
| 65 | "--pretty", |
| 66 | "--remotes=", |
| 67 | "--remotes", |
| 68 | "--glob=", |
| 69 | "--sparse", |
| 70 | "--tags=", |
| 71 | "--tags", |
| 72 | "--topo-order", |
| 73 | "--date-order", |
| 74 | "--unpacked", |
| 75 | NULL((void*)0) |
| 76 | }; |
| 77 | const char **p = rev_args; |
| 78 | |
| 79 | /* accept -<digit>, like traditional "head" */ |
| 80 | if ((*arg == '-') && isdigit(arg[1])((sane_ctype[(unsigned char)(arg[1])] & (0x02)) != 0)) |
| 81 | return 1; |
| 82 | |
| 83 | for (;;) { |
| 84 | const char *str = *p++; |
| 85 | int len; |
| 86 | if (!str) |
| 87 | return 0; |
| 88 | len = strlen(str); |
| 89 | if (!strcmp(arg, str) || |
| 90 | (str[len-1] == '=' && !strncmp(arg, str, len))) |
| 91 | return 1; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | /* Output argument as a string, either SQ or normal */ |
| 96 | static void show(const char *arg) |
| 97 | { |
| 98 | if (output_sq) { |
| 99 | int sq = '\'', ch; |
| 100 | |
| 101 | putchar(sq); |
| 102 | while ((ch = *arg++)) { |
| 103 | if (ch == sq) |
| 104 | fputs("'\\'", stdout__stdoutp); |
| 105 | putchar(ch); |
| 106 | } |
| 107 | putchar(sq); |
| 108 | putchar(' '); |
| 109 | } |
| 110 | else |
| 111 | puts(arg); |
| 112 | } |
| 113 | |
| 114 | /* Like show(), but with a negation prefix according to type */ |
| 115 | static void show_with_type(int type, const char *arg) |
| 116 | { |
| 117 | if (type != show_type) |
| 118 | putchar('^'); |
| 119 | show(arg); |
| 120 | } |
| 121 | |
| 122 | /* Output a revision, only if filter allows it */ |
| 123 | static void show_rev(int type, const unsigned char *sha1, const char *name) |
| 124 | { |
| 125 | if (!(filter & DO_REVS1)) |
| 126 | return; |
| 127 | def = NULL((void*)0); |
| 128 | |
| 129 | if ((symbolic || abbrev_ref) && name) { |
| 130 | if (symbolic == SHOW_SYMBOLIC_FULL2 || abbrev_ref) { |
| 131 | unsigned char discard[20]; |
| 132 | char *full; |
| 133 | |
| 134 | switch (dwim_ref(name, strlen(name), discard, &full)) { |
| 135 | case 0: |
| 136 | /* |
| 137 | * Not found -- not a ref. We could |
| 138 | * emit "name" here, but symbolic-full |
| 139 | * users are interested in finding the |
| 140 | * refs spelled in full, and they would |
| 141 | * need to filter non-refs if we did so. |
| 142 | */ |
| 143 | break; |
| 144 | case 1: /* happy */ |
| 145 | if (abbrev_ref) |
| 146 | full = shorten_unambiguous_ref(full, |
| 147 | abbrev_ref_strict); |
| 148 | show_with_type(type, full); |
| 149 | break; |
| 150 | default: /* ambiguous */ |
| 151 | error("refname '%s' is ambiguous", name)(error("refname '%s' is ambiguous", name), const_error()); |
| 152 | break; |
| 153 | } |
| 154 | free(full); |
| 155 | } else { |
| 156 | show_with_type(type, name); |
| 157 | } |
| 158 | } |
| 159 | else if (abbrev) |
| 160 | show_with_type(type, find_unique_abbrev(sha1, abbrev)); |
| 161 | else |
| 162 | show_with_type(type, sha1_to_hex(sha1)); |
| 163 | } |
| 164 | |
| 165 | /* Output a flag, only if filter allows it. */ |
| 166 | static int show_flag(const char *arg) |
| 167 | { |
| 168 | if (!(filter & DO_FLAGS4)) |
| 169 | return 0; |
| 170 | if (filter & (is_rev_argument(arg) ? DO_REVS1 : DO_NOREV2)) { |
| 171 | show(arg); |
| 172 | return 1; |
| 173 | } |
| 174 | return 0; |
| 175 | } |
| 176 | |
| 177 | static int show_default(void) |
| 178 | { |
| 179 | const char *s = def; |
| 180 | |
| 181 | if (s) { |
| 182 | unsigned char sha1[20]; |
| 183 | |
| 184 | def = NULL((void*)0); |
| 185 | if (!get_sha1(s, sha1)) { |
| 186 | show_rev(NORMAL0, sha1, s); |
| 187 | return 1; |
| 188 | } |
| 189 | } |
| 190 | return 0; |
| 191 | } |
| 192 | |
| 193 | static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) |
| 194 | { |
| 195 | if (ref_excluded(ref_excludes, refname)) |
| 196 | return 0; |
| 197 | show_rev(NORMAL0, oid->hash, refname); |
| 198 | return 0; |
| 199 | } |
| 200 | |
| 201 | static int anti_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) |
| 202 | { |
| 203 | show_rev(REVERSED1, oid->hash, refname); |
| 204 | return 0; |
| 205 | } |
| 206 | |
| 207 | static int show_abbrev(const unsigned char *sha1, void *cb_data) |
| 208 | { |
| 209 | show_rev(NORMAL0, sha1, NULL((void*)0)); |
| 210 | return 0; |
| 211 | } |
| 212 | |
| 213 | static void show_datestring(const char *flag, const char *datestr) |
| 214 | { |
| 215 | static char buffer[100]; |
| 216 | |
| 217 | /* date handling requires both flags and revs */ |
| 218 | if ((filter & (DO_FLAGS4 | DO_REVS1)) != (DO_FLAGS4 | DO_REVS1)) |
| 219 | return; |
| 220 | snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr))__builtin___snprintf_chk (buffer, sizeof(buffer), 0, __builtin_object_size (buffer, 2 > 1 ? 1 : 0), "%s%lu", flag, approxidate_careful ((datestr), ((void*)0))); |
| 221 | show(buffer); |
| 222 | } |
| 223 | |
| 224 | static int show_file(const char *arg, int output_prefix) |
| 225 | { |
| 226 | show_default(); |
| 227 | if ((filter & (DO_NONFLAGS8|DO_NOREV2)) == (DO_NONFLAGS8|DO_NOREV2)) { |
| 228 | if (output_prefix) { |
| 229 | const char *prefix = startup_info->prefix; |
| 230 | show(prefix_filename(prefix, |
| 231 | prefix ? strlen(prefix) : 0, |
| 232 | arg)); |
| 233 | } else |
| 234 | show(arg); |
| 235 | return 1; |
| 236 | } |
| 237 | return 0; |
| 238 | } |
| 239 | |
| 240 | static int try_difference(const char *arg) |
| 241 | { |
| 242 | char *dotdot; |
| 243 | unsigned char sha1[20]; |
| 244 | unsigned char end[20]; |
| 245 | const char *next; |
| 246 | const char *this; |
| 247 | int symmetric; |
| 248 | static const char head_by_default[] = "HEAD"; |
| 249 | |
| 250 | if (!(dotdot = strstr(arg, ".."))) |
| 251 | return 0; |
| 252 | next = dotdot + 2; |
| 253 | this = arg; |
| 254 | symmetric = (*next == '.'); |
| 255 | |
| 256 | *dotdot = 0; |
| 257 | next += symmetric; |
| 258 | |
| 259 | if (!*next) |
| 260 | next = head_by_default; |
| 261 | if (dotdot == arg) |
| 262 | this = head_by_default; |
| 263 | |
| 264 | if (this == head_by_default && next == head_by_default && |
| 265 | !symmetric) { |
| 266 | /* |
| 267 | * Just ".."? That is not a range but the |
| 268 | * pathspec for the parent directory. |
| 269 | */ |
| 270 | *dotdot = '.'; |
| 271 | return 0; |
| 272 | } |
| 273 | |
| 274 | if (!get_sha1_committish(this, sha1) && !get_sha1_committish(next, end)) { |
| 275 | show_rev(NORMAL0, end, next); |
| 276 | show_rev(symmetric ? NORMAL0 : REVERSED1, sha1, this); |
| 277 | if (symmetric) { |
| 278 | struct commit_list *exclude; |
| 279 | struct commit *a, *b; |
| 280 | a = lookup_commit_reference(sha1); |
| 281 | b = lookup_commit_reference(end); |
| 282 | exclude = get_merge_bases(a, b); |
| 283 | while (exclude) { |
| 284 | struct commit *commit = pop_commit(&exclude); |
| 285 | show_rev(REVERSED1, commit->object.oid.hash, NULL((void*)0)); |
| 286 | } |
| 287 | } |
| 288 | *dotdot = '.'; |
| 289 | return 1; |
| 290 | } |
| 291 | *dotdot = '.'; |
| 292 | return 0; |
| 293 | } |
| 294 | |
| 295 | static int try_parent_shorthands(const char *arg) |
| 296 | { |
| 297 | char *dotdot; |
| 298 | unsigned char sha1[20]; |
| 299 | struct commit *commit; |
| 300 | struct commit_list *parents; |
| 301 | int parent_number; |
| 302 | int include_rev = 0; |
| 303 | int include_parents = 0; |
| 304 | int exclude_parent = 0; |
| 305 | |
| 306 | if ((dotdot = strstr(arg, "^!"))) { |
| 307 | include_rev = 1; |
| 308 | if (dotdot[2]) |
| 309 | return 0; |
| 310 | } else if ((dotdot = strstr(arg, "^@"))) { |
| 311 | include_parents = 1; |
| 312 | if (dotdot[2]) |
| 313 | return 0; |
| 314 | } else if ((dotdot = strstr(arg, "^-"))) { |
| 315 | include_rev = 1; |
| 316 | exclude_parent = 1; |
| 317 | |
| 318 | if (dotdot[2]) { |
| 319 | char *end; |
| 320 | exclude_parent = strtoul(dotdot + 2, &end, 10); |
| 321 | if (*end != '\0' || !exclude_parent) |
| 322 | return 0; |
| 323 | } |
| 324 | } else |
| 325 | return 0; |
| 326 | |
| 327 | *dotdot = 0; |
| 328 | if (get_sha1_committish(arg, sha1)) { |
| 329 | *dotdot = '^'; |
| 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | commit = lookup_commit_reference(sha1); |
| 334 | if (exclude_parent && |
| 335 | exclude_parent > commit_list_count(commit->parents)) { |
| 336 | *dotdot = '^'; |
| 337 | return 0; |
| 338 | } |
| 339 | |
| 340 | if (include_rev) |
| 341 | show_rev(NORMAL0, sha1, arg); |
| 342 | for (parents = commit->parents, parent_number = 1; |
| 343 | parents; |
| 344 | parents = parents->next, parent_number++) { |
| 345 | char *name = NULL((void*)0); |
| 346 | |
| 347 | if (exclude_parent && parent_number != exclude_parent) |
| 348 | continue; |
| 349 | |
| 350 | if (symbolic) |
| 351 | name = xstrfmt("%s^%d", arg, parent_number); |
| 352 | show_rev(include_parents ? NORMAL0 : REVERSED1, |
| 353 | parents->item->object.oid.hash, name); |
| 354 | free(name); |
| 355 | } |
| 356 | |
| 357 | *dotdot = '^'; |
| 358 | return 1; |
| 359 | } |
| 360 | |
| 361 | static int parseopt_dump(const struct option *o, const char *arg, int unset) |
| 362 | { |
| 363 | struct strbuf *parsed = o->value; |
| 364 | if (unset) |
| 365 | strbuf_addf(parsed, " --no-%s", o->long_name); |
| 366 | else if (o->short_name && (o->long_name == NULL((void*)0) || !stuck_long)) |
| 367 | strbuf_addf(parsed, " -%c", o->short_name); |
| 368 | else |
| 369 | strbuf_addf(parsed, " --%s", o->long_name); |
| 370 | if (arg) { |
| 371 | if (!stuck_long) |
| 372 | strbuf_addch(parsed, ' '); |
| 373 | else if (o->long_name) |
| 374 | strbuf_addch(parsed, '='); |
| 375 | sq_quote_buf(parsed, arg); |
| 376 | } |
| 377 | return 0; |
| 378 | } |
| 379 | |
| 380 | static const char *skipspaces(const char *s) |
| 381 | { |
| 382 | while (isspace(*s)((sane_ctype[(unsigned char)(*s)] & (0x01)) != 0)) |
| 383 | s++; |
| 384 | return s; |
| 385 | } |
| 386 | |
| 387 | static int cmd_parseopt(int argc, const char **argv, const char *prefix) |
| 388 | { |
| 389 | static int keep_dashdash = 0, stop_at_non_option = 0; |
| 390 | static char const * const parseopt_usage[] = { |
| 391 | N_("git rev-parse --parseopt [<options>] -- [<args>...]")("git rev-parse --parseopt [<options>] -- [<args>...]" ), |
| 392 | NULL((void*)0) |
| 393 | }; |
| 394 | static struct option parseopt_opts[] = { |
| 395 | OPT_BOOL(0, "keep-dashdash", &keep_dashdash,{ OPTION_SET_INT, (0), ("keep-dashdash"), (&keep_dashdash ), ((void*)0), (("keep the `--` passed as an arg")), PARSE_OPT_NOARG , ((void*)0), (1) } |
| 396 | N_("keep the `--` passed as an arg")){ OPTION_SET_INT, (0), ("keep-dashdash"), (&keep_dashdash ), ((void*)0), (("keep the `--` passed as an arg")), PARSE_OPT_NOARG , ((void*)0), (1) }, |
| 397 | OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option,{ OPTION_SET_INT, (0), ("stop-at-non-option"), (&stop_at_non_option ), ((void*)0), (("stop parsing after the " "first non-option argument" )), PARSE_OPT_NOARG, ((void*)0), (1) } |
| 398 | N_("stop parsing after the "{ OPTION_SET_INT, (0), ("stop-at-non-option"), (&stop_at_non_option ), ((void*)0), (("stop parsing after the " "first non-option argument" )), PARSE_OPT_NOARG, ((void*)0), (1) } |
| 399 | "first non-option argument")){ OPTION_SET_INT, (0), ("stop-at-non-option"), (&stop_at_non_option ), ((void*)0), (("stop parsing after the " "first non-option argument" )), PARSE_OPT_NOARG, ((void*)0), (1) }, |
| 400 | OPT_BOOL(0, "stuck-long", &stuck_long,{ OPTION_SET_INT, (0), ("stuck-long"), (&stuck_long), ((void *)0), (("output in stuck long form")), PARSE_OPT_NOARG, ((void *)0), (1) } |
| 401 | N_("output in stuck long form")){ OPTION_SET_INT, (0), ("stuck-long"), (&stuck_long), ((void *)0), (("output in stuck long form")), PARSE_OPT_NOARG, ((void *)0), (1) }, |
| 402 | OPT_END(){ OPTION_END }, |
| 403 | }; |
| 404 | static const char * const flag_chars = "*=?!"; |
| 405 | |
| 406 | struct strbuf sb = STRBUF_INIT{ 0, 0, strbuf_slopbuf }, parsed = STRBUF_INIT{ 0, 0, strbuf_slopbuf }; |
| 407 | const char **usage = NULL((void*)0); |
| 408 | struct option *opts = NULL((void*)0); |
| 409 | int onb = 0, osz = 0, unb = 0, usz = 0; |
| 410 | |
| 411 | strbuf_addstr(&parsed, "set --"); |
| 412 | argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage, |
| 413 | PARSE_OPT_KEEP_DASHDASH); |
| 414 | if (argc < 1 || strcmp(argv[0], "--")) |
| 415 | usage_with_options(parseopt_usage, parseopt_opts); |
| 416 | |
| 417 | /* get the usage up to the first line with a -- on it */ |
| 418 | for (;;) { |
| 419 | if (strbuf_getline(&sb, stdin__stdinp) == EOF(-1)) |
| 420 | die("premature end of input"); |
| 421 | ALLOC_GROW(usage, unb + 1, usz)do { if ((unb + 1) > usz) { if ((((usz)+16)*3/2) < (unb + 1)) usz = (unb + 1); else usz = (((usz)+16)*3/2); (usage) = xrealloc((usage), st_mult(sizeof(*(usage)), (usz))); } } while (0); |
| 422 | if (!strcmp("--", sb.buf)) { |
| 423 | if (unb < 1) |
| 424 | die("no usage string given before the `--' separator"); |
| 425 | usage[unb] = NULL((void*)0); |
| 426 | break; |
| 427 | } |
| 428 | usage[unb++] = strbuf_detach(&sb, NULL((void*)0)); |
| 429 | } |
| 430 | |
| 431 | /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ |
| 432 | while (strbuf_getline(&sb, stdin__stdinp) != EOF(-1)) { |
| 433 | const char *s; |
| 434 | const char *help; |
| 435 | struct option *o; |
| 436 | |
| 437 | if (!sb.len) |
| 438 | continue; |
| 439 | |
| 440 | ALLOC_GROW(opts, onb + 1, osz)do { if ((onb + 1) > osz) { if ((((osz)+16)*3/2) < (onb + 1)) osz = (onb + 1); else osz = (((osz)+16)*3/2); (opts) = xrealloc((opts), st_mult(sizeof(*(opts)), (osz))); } } while (0); |
| 441 | memset(opts + onb, 0, sizeof(opts[onb]))__builtin___memset_chk (opts + onb, 0, sizeof(opts[onb]), __builtin_object_size (opts + onb, 0)); |
| 442 | |
| 443 | o = &opts[onb++]; |
| 444 | help = strchr(sb.buf, ' '); |
| 445 | if (!help || *sb.buf == ' ') { |
| 446 | o->type = OPTION_GROUP; |
| 447 | o->help = xstrdup(skipspaces(sb.buf)); |
| 448 | continue; |
| 449 | } |
| 450 | |
| 451 | o->type = OPTION_CALLBACK; |
| 452 | o->help = xstrdup(skipspaces(help)); |
| 453 | o->value = &parsed; |
| 454 | o->flags = PARSE_OPT_NOARG; |
| 455 | o->callback = &parseopt_dump; |
| 456 | |
| 457 | /* name(s) */ |
| 458 | s = strpbrk(sb.buf, flag_chars); |
| 459 | if (s == NULL((void*)0)) |
| 460 | s = help; |
| 461 | |
| 462 | if (s - sb.buf == 1) /* short option only */ |
| 463 | o->short_name = *sb.buf; |
| 464 | else if (sb.buf[1] != ',') /* long option only */ |
| 465 | o->long_name = xmemdupz(sb.buf, s - sb.buf); |
| 466 | else { |
| 467 | o->short_name = *sb.buf; |
| 468 | o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); |
| 469 | } |
| 470 | |
| 471 | /* flags */ |
| 472 | while (s < help) { |
| 473 | switch (*s++) { |
| 474 | case '=': |
| 475 | o->flags &= ~PARSE_OPT_NOARG; |
| 476 | continue; |
| 477 | case '?': |
| 478 | o->flags &= ~PARSE_OPT_NOARG; |
| 479 | o->flags |= PARSE_OPT_OPTARG; |
| 480 | continue; |
| 481 | case '!': |
| 482 | o->flags |= PARSE_OPT_NONEG; |
| 483 | continue; |
| 484 | case '*': |
| 485 | o->flags |= PARSE_OPT_HIDDEN; |
| 486 | continue; |
| 487 | } |
| 488 | s--; |
| 489 | break; |
| 490 | } |
| 491 | |
| 492 | if (s < help) |
| 493 | o->argh = xmemdupz(s, help - s); |
| 494 | } |
| 495 | strbuf_release(&sb); |
| 496 | |
| 497 | /* put an OPT_END() */ |
| 498 | ALLOC_GROW(opts, onb + 1, osz)do { if ((onb + 1) > osz) { if ((((osz)+16)*3/2) < (onb + 1)) osz = (onb + 1); else osz = (((osz)+16)*3/2); (opts) = xrealloc((opts), st_mult(sizeof(*(opts)), (osz))); } } while (0); |
| 499 | memset(opts + onb, 0, sizeof(opts[onb]))__builtin___memset_chk (opts + onb, 0, sizeof(opts[onb]), __builtin_object_size (opts + onb, 0)); |
| 500 | argc = parse_options(argc, argv, prefix, opts, usage, |
Value stored to 'argc' is never read | |
| 501 | (keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0) | |
| 502 | (stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0) | |
| 503 | PARSE_OPT_SHELL_EVAL); |
| 504 | |
| 505 | strbuf_addstr(&parsed, " --"); |
| 506 | sq_quote_argv(&parsed, argv, 0); |
| 507 | puts(parsed.buf); |
| 508 | return 0; |
| 509 | } |
| 510 | |
| 511 | static int cmd_sq_quote(int argc, const char **argv) |
| 512 | { |
| 513 | struct strbuf buf = STRBUF_INIT{ 0, 0, strbuf_slopbuf }; |
| 514 | |
| 515 | if (argc) |
| 516 | sq_quote_argv(&buf, argv, 0); |
| 517 | printf("%s\n", buf.buf); |
| 518 | strbuf_release(&buf); |
| 519 | |
| 520 | return 0; |
| 521 | } |
| 522 | |
| 523 | static void die_no_single_rev(int quiet) |
| 524 | { |
| 525 | if (quiet) |
| 526 | exit(1); |
| 527 | else |
| 528 | die("Needed a single revision"); |
| 529 | } |
| 530 | |
| 531 | static const char builtin_rev_parse_usage[] = |
| 532 | N_("git rev-parse --parseopt [<options>] -- [<args>...]\n"("git rev-parse --parseopt [<options>] -- [<args>...]\n" " or: git rev-parse --sq-quote [<arg>...]\n" " or: git rev-parse [<options>] [<arg>...]\n" "\n" "Run \"git rev-parse --parseopt -h\" for more information on the first usage." ) |
| 533 | " or: git rev-parse --sq-quote [<arg>...]\n"("git rev-parse --parseopt [<options>] -- [<args>...]\n" " or: git rev-parse --sq-quote [<arg>...]\n" " or: git rev-parse [<options>] [<arg>...]\n" "\n" "Run \"git rev-parse --parseopt -h\" for more information on the first usage." ) |
| 534 | " or: git rev-parse [<options>] [<arg>...]\n"("git rev-parse --parseopt [<options>] -- [<args>...]\n" " or: git rev-parse --sq-quote [<arg>...]\n" " or: git rev-parse [<options>] [<arg>...]\n" "\n" "Run \"git rev-parse --parseopt -h\" for more information on the first usage." ) |
| 535 | "\n"("git rev-parse --parseopt [<options>] -- [<args>...]\n" " or: git rev-parse --sq-quote [<arg>...]\n" " or: git rev-parse [<options>] [<arg>...]\n" "\n" "Run \"git rev-parse --parseopt -h\" for more information on the first usage." ) |
| 536 | "Run \"git rev-parse --parseopt -h\" for more information on the first usage.")("git rev-parse --parseopt [<options>] -- [<args>...]\n" " or: git rev-parse --sq-quote [<arg>...]\n" " or: git rev-parse [<options>] [<arg>...]\n" "\n" "Run \"git rev-parse --parseopt -h\" for more information on the first usage." ); |
| 537 | |
| 538 | int cmd_rev_parse(int argc, const char **argv, const char *prefix) |
| 539 | { |
| 540 | int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; |
| 541 | int did_repo_setup = 0; |
| 542 | int has_dashdash = 0; |
| 543 | int output_prefix = 0; |
| 544 | unsigned char sha1[20]; |
| 545 | unsigned int flags = 0; |
| 546 | const char *name = NULL((void*)0); |
| 547 | struct object_context unused; |
| 548 | |
| 549 | if (argc > 1 && !strcmp("--parseopt", argv[1])) |
| 550 | return cmd_parseopt(argc - 1, argv + 1, prefix); |
| 551 | |
| 552 | if (argc > 1 && !strcmp("--sq-quote", argv[1])) |
| 553 | return cmd_sq_quote(argc - 2, argv + 2); |
| 554 | |
| 555 | if (argc > 1 && !strcmp("-h", argv[1])) |
| 556 | usage(builtin_rev_parse_usage); |
| 557 | |
| 558 | for (i = 1; i < argc; i++) { |
| 559 | if (!strcmp(argv[i], "--")) { |
| 560 | has_dashdash = 1; |
| 561 | break; |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | /* No options; just report on whether we're in a git repo or not. */ |
| 566 | if (argc == 1) { |
| 567 | setup_git_directory(); |
| 568 | git_config(git_default_config, NULL((void*)0)); |
| 569 | return 0; |
| 570 | } |
| 571 | |
| 572 | for (i = 1; i < argc; i++) { |
| 573 | const char *arg = argv[i]; |
| 574 | |
| 575 | if (!strcmp(arg, "--local-env-vars")) { |
| 576 | int i; |
| 577 | for (i = 0; local_repo_env[i]; i++) |
| 578 | printf("%s\n", local_repo_env[i]); |
| 579 | continue; |
| 580 | } |
| 581 | if (!strcmp(arg, "--resolve-git-dir")) { |
| 582 | const char *gitdir = argv[++i]; |
| 583 | if (!gitdir) |
| 584 | die("--resolve-git-dir requires an argument"); |
| 585 | gitdir = resolve_gitdir(gitdir)resolve_gitdir_gently((gitdir), ((void*)0)); |
| 586 | if (!gitdir) |
| 587 | die("not a gitdir '%s'", argv[i]); |
| 588 | puts(gitdir); |
| 589 | continue; |
| 590 | } |
| 591 | |
| 592 | /* The rest of the options require a git repository. */ |
| 593 | if (!did_repo_setup) { |
| 594 | prefix = setup_git_directory(); |
| 595 | git_config(git_default_config, NULL((void*)0)); |
| 596 | did_repo_setup = 1; |
| 597 | } |
| 598 | |
| 599 | if (!strcmp(arg, "--git-path")) { |
| 600 | if (!argv[i + 1]) |
| 601 | die("--git-path requires an argument"); |
| 602 | puts(git_path("%s", argv[i + 1])); |
| 603 | i++; |
| 604 | continue; |
| 605 | } |
| 606 | if (as_is) { |
| 607 | if (show_file(arg, output_prefix) && as_is < 2) |
| 608 | verify_filename(prefix, arg, 0); |
| 609 | continue; |
| 610 | } |
| 611 | if (!strcmp(arg,"-n")) { |
| 612 | if (++i >= argc) |
| 613 | die("-n requires an argument"); |
| 614 | if ((filter & DO_FLAGS4) && (filter & DO_REVS1)) { |
| 615 | show(arg); |
| 616 | show(argv[i]); |
| 617 | } |
| 618 | continue; |
| 619 | } |
| 620 | if (starts_with(arg, "-n")) { |
| 621 | if ((filter & DO_FLAGS4) && (filter & DO_REVS1)) |
| 622 | show(arg); |
| 623 | continue; |
| 624 | } |
| 625 | |
| 626 | if (*arg == '-') { |
| 627 | if (!strcmp(arg, "--")) { |
| 628 | as_is = 2; |
| 629 | /* Pass on the "--" if we show anything but files.. */ |
| 630 | if (filter & (DO_FLAGS4 | DO_REVS1)) |
| 631 | show_file(arg, 0); |
| 632 | continue; |
| 633 | } |
| 634 | if (!strcmp(arg, "--default")) { |
| 635 | def = argv[++i]; |
| 636 | if (!def) |
| 637 | die("--default requires an argument"); |
| 638 | continue; |
| 639 | } |
| 640 | if (!strcmp(arg, "--prefix")) { |
| 641 | prefix = argv[++i]; |
| 642 | if (!prefix) |
| 643 | die("--prefix requires an argument"); |
| 644 | startup_info->prefix = prefix; |
| 645 | output_prefix = 1; |
| 646 | continue; |
| 647 | } |
| 648 | if (!strcmp(arg, "--revs-only")) { |
| 649 | filter &= ~DO_NOREV2; |
| 650 | continue; |
| 651 | } |
| 652 | if (!strcmp(arg, "--no-revs")) { |
| 653 | filter &= ~DO_REVS1; |
| 654 | continue; |
| 655 | } |
| 656 | if (!strcmp(arg, "--flags")) { |
| 657 | filter &= ~DO_NONFLAGS8; |
| 658 | continue; |
| 659 | } |
| 660 | if (!strcmp(arg, "--no-flags")) { |
| 661 | filter &= ~DO_FLAGS4; |
| 662 | continue; |
| 663 | } |
| 664 | if (!strcmp(arg, "--verify")) { |
| 665 | filter &= ~(DO_FLAGS4|DO_NOREV2); |
| 666 | verify = 1; |
| 667 | continue; |
| 668 | } |
| 669 | if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { |
| 670 | quiet = 1; |
| 671 | flags |= GET_SHA1_QUIETLY01; |
| 672 | continue; |
| 673 | } |
| 674 | if (!strcmp(arg, "--short") || |
| 675 | starts_with(arg, "--short=")) { |
| 676 | filter &= ~(DO_FLAGS4|DO_NOREV2); |
| 677 | verify = 1; |
| 678 | abbrev = DEFAULT_ABBREVdefault_abbrev; |
| 679 | if (!arg[7]) |
| 680 | continue; |
| 681 | abbrev = strtoul(arg + 8, NULL((void*)0), 10); |
| 682 | if (abbrev < MINIMUM_ABBREVminimum_abbrev) |
| 683 | abbrev = MINIMUM_ABBREVminimum_abbrev; |
| 684 | else if (40 <= abbrev) |
| 685 | abbrev = 40; |
| 686 | continue; |
| 687 | } |
| 688 | if (!strcmp(arg, "--sq")) { |
| 689 | output_sq = 1; |
| 690 | continue; |
| 691 | } |
| 692 | if (!strcmp(arg, "--not")) { |
| 693 | show_type ^= REVERSED1; |
| 694 | continue; |
| 695 | } |
| 696 | if (!strcmp(arg, "--symbolic")) { |
| 697 | symbolic = SHOW_SYMBOLIC_ASIS1; |
| 698 | continue; |
| 699 | } |
| 700 | if (!strcmp(arg, "--symbolic-full-name")) { |
| 701 | symbolic = SHOW_SYMBOLIC_FULL2; |
| 702 | continue; |
| 703 | } |
| 704 | if (starts_with(arg, "--abbrev-ref") && |
| 705 | (!arg[12] || arg[12] == '=')) { |
| 706 | abbrev_ref = 1; |
| 707 | abbrev_ref_strict = warn_ambiguous_refs; |
| 708 | if (arg[12] == '=') { |
| 709 | if (!strcmp(arg + 13, "strict")) |
| 710 | abbrev_ref_strict = 1; |
| 711 | else if (!strcmp(arg + 13, "loose")) |
| 712 | abbrev_ref_strict = 0; |
| 713 | else |
| 714 | die("unknown mode for %s", arg); |
| 715 | } |
| 716 | continue; |
| 717 | } |
| 718 | if (!strcmp(arg, "--all")) { |
| 719 | for_each_ref(show_reference, NULL((void*)0)); |
| 720 | continue; |
| 721 | } |
| 722 | if (starts_with(arg, "--disambiguate=")) { |
| 723 | for_each_abbrev(arg + 15, show_abbrev, NULL((void*)0)); |
| 724 | continue; |
| 725 | } |
| 726 | if (!strcmp(arg, "--bisect")) { |
| 727 | for_each_ref_in("refs/bisect/bad", show_reference, NULL((void*)0)); |
| 728 | for_each_ref_in("refs/bisect/good", anti_reference, NULL((void*)0)); |
| 729 | continue; |
| 730 | } |
| 731 | if (starts_with(arg, "--branches=")) { |
| 732 | for_each_glob_ref_in(show_reference, arg + 11, |
| 733 | "refs/heads/", NULL((void*)0)); |
| 734 | clear_ref_exclusion(&ref_excludes); |
| 735 | continue; |
| 736 | } |
| 737 | if (!strcmp(arg, "--branches")) { |
| 738 | for_each_branch_ref(show_reference, NULL((void*)0)); |
| 739 | clear_ref_exclusion(&ref_excludes); |
| 740 | continue; |
| 741 | } |
| 742 | if (starts_with(arg, "--tags=")) { |
| 743 | for_each_glob_ref_in(show_reference, arg + 7, |
| 744 | "refs/tags/", NULL((void*)0)); |
| 745 | clear_ref_exclusion(&ref_excludes); |
| 746 | continue; |
| 747 | } |
| 748 | if (!strcmp(arg, "--tags")) { |
| 749 | for_each_tag_ref(show_reference, NULL((void*)0)); |
| 750 | clear_ref_exclusion(&ref_excludes); |
| 751 | continue; |
| 752 | } |
| 753 | if (starts_with(arg, "--glob=")) { |
| 754 | for_each_glob_ref(show_reference, arg + 7, NULL((void*)0)); |
| 755 | clear_ref_exclusion(&ref_excludes); |
| 756 | continue; |
| 757 | } |
| 758 | if (starts_with(arg, "--remotes=")) { |
| 759 | for_each_glob_ref_in(show_reference, arg + 10, |
| 760 | "refs/remotes/", NULL((void*)0)); |
| 761 | clear_ref_exclusion(&ref_excludes); |
| 762 | continue; |
| 763 | } |
| 764 | if (!strcmp(arg, "--remotes")) { |
| 765 | for_each_remote_ref(show_reference, NULL((void*)0)); |
| 766 | clear_ref_exclusion(&ref_excludes); |
| 767 | continue; |
| 768 | } |
| 769 | if (starts_with(arg, "--exclude=")) { |
| 770 | add_ref_exclusion(&ref_excludes, arg + 10); |
| 771 | continue; |
| 772 | } |
| 773 | if (!strcmp(arg, "--show-toplevel")) { |
| 774 | const char *work_tree = get_git_work_tree(); |
| 775 | if (work_tree) |
| 776 | puts(work_tree); |
| 777 | continue; |
| 778 | } |
| 779 | if (!strcmp(arg, "--show-prefix")) { |
| 780 | if (prefix) |
| 781 | puts(prefix); |
| 782 | else |
| 783 | putchar('\n'); |
| 784 | continue; |
| 785 | } |
| 786 | if (!strcmp(arg, "--show-cdup")) { |
| 787 | const char *pfx = prefix; |
| 788 | if (!is_inside_work_tree()) { |
| 789 | const char *work_tree = |
| 790 | get_git_work_tree(); |
| 791 | if (work_tree) |
| 792 | printf("%s\n", work_tree); |
| 793 | continue; |
| 794 | } |
| 795 | while (pfx) { |
| 796 | pfx = strchr(pfx, '/'); |
| 797 | if (pfx) { |
| 798 | pfx++; |
| 799 | printf("../"); |
| 800 | } |
| 801 | } |
| 802 | putchar('\n'); |
| 803 | continue; |
| 804 | } |
| 805 | if (!strcmp(arg, "--git-dir")) { |
| 806 | const char *gitdir = getenv(GIT_DIR_ENVIRONMENT"GIT_DIR"); |
| 807 | char *cwd; |
| 808 | int len; |
| 809 | if (gitdir) { |
| 810 | puts(gitdir); |
| 811 | continue; |
| 812 | } |
| 813 | if (!prefix) { |
| 814 | puts(".git"); |
| 815 | continue; |
| 816 | } |
| 817 | cwd = xgetcwd(); |
| 818 | len = strlen(cwd); |
| 819 | printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); |
| 820 | free(cwd); |
| 821 | continue; |
| 822 | } |
| 823 | if (!strcmp(arg, "--git-common-dir")) { |
| 824 | const char *pfx = prefix ? prefix : ""; |
| 825 | puts(prefix_filename(pfx, strlen(pfx), get_git_common_dir())); |
| 826 | continue; |
| 827 | } |
| 828 | if (!strcmp(arg, "--is-inside-git-dir")) { |
| 829 | printf("%s\n", is_inside_git_dir() ? "true" |
| 830 | : "false"); |
| 831 | continue; |
| 832 | } |
| 833 | if (!strcmp(arg, "--is-inside-work-tree")) { |
| 834 | printf("%s\n", is_inside_work_tree() ? "true" |
| 835 | : "false"); |
| 836 | continue; |
| 837 | } |
| 838 | if (!strcmp(arg, "--is-bare-repository")) { |
| 839 | printf("%s\n", is_bare_repository() ? "true" |
| 840 | : "false"); |
| 841 | continue; |
| 842 | } |
| 843 | if (!strcmp(arg, "--shared-index-path")) { |
| 844 | if (read_cache()read_index(&the_index) < 0) |
| 845 | die(_("Could not read the index")); |
| 846 | if (the_index.split_index) { |
| 847 | const unsigned char *sha1 = the_index.split_index->base_sha1; |
| 848 | puts(git_path("sharedindex.%s", sha1_to_hex(sha1))); |
| 849 | } |
| 850 | continue; |
| 851 | } |
| 852 | if (starts_with(arg, "--since=")) { |
| 853 | show_datestring("--max-age=", arg+8); |
| 854 | continue; |
| 855 | } |
| 856 | if (starts_with(arg, "--after=")) { |
| 857 | show_datestring("--max-age=", arg+8); |
| 858 | continue; |
| 859 | } |
| 860 | if (starts_with(arg, "--before=")) { |
| 861 | show_datestring("--min-age=", arg+9); |
| 862 | continue; |
| 863 | } |
| 864 | if (starts_with(arg, "--until=")) { |
| 865 | show_datestring("--min-age=", arg+8); |
| 866 | continue; |
| 867 | } |
| 868 | if (show_flag(arg) && verify) |
| 869 | die_no_single_rev(quiet); |
| 870 | continue; |
| 871 | } |
| 872 | |
| 873 | /* Not a flag argument */ |
| 874 | if (try_difference(arg)) |
| 875 | continue; |
| 876 | if (try_parent_shorthands(arg)) |
| 877 | continue; |
| 878 | name = arg; |
| 879 | type = NORMAL0; |
| 880 | if (*arg == '^') { |
| 881 | name++; |
| 882 | type = REVERSED1; |
| 883 | } |
| 884 | if (!get_sha1_with_context(name, flags, sha1, &unused)) { |
| 885 | if (verify) |
| 886 | revs_count++; |
| 887 | else |
| 888 | show_rev(type, sha1, name); |
| 889 | continue; |
| 890 | } |
| 891 | if (verify) |
| 892 | die_no_single_rev(quiet); |
| 893 | if (has_dashdash) |
| 894 | die("bad revision '%s'", arg); |
| 895 | as_is = 1; |
| 896 | if (!show_file(arg, output_prefix)) |
| 897 | continue; |
| 898 | verify_filename(prefix, arg, 1); |
| 899 | } |
| 900 | if (verify) { |
| 901 | if (revs_count == 1) { |
| 902 | show_rev(type, sha1, name); |
| 903 | return 0; |
| 904 | } else if (revs_count == 0 && show_default()) |
| 905 | return 0; |
| 906 | die_no_single_rev(quiet); |
| 907 | } else |
| 908 | show_default(); |
| 909 | return 0; |
| 910 | } |