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Commit | Line | Data |
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178cb243 LT |
1 | /* |
2 | * rev-parse.c | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | */ | |
f8adbec9 | 6 | #define USE_THE_INDEX_COMPATIBILITY_MACROS |
178cb243 | 7 | #include "cache.h" |
b2141fc1 | 8 | #include "config.h" |
a8be83fe | 9 | #include "commit.h" |
960bba0d | 10 | #include "refs.h" |
c1babb1d | 11 | #include "quote.h" |
895f10c3 | 12 | #include "builtin.h" |
21d47835 | 13 | #include "parse-options.h" |
9dc01bf0 JH |
14 | #include "diff.h" |
15 | #include "revision.h" | |
a76295da | 16 | #include "split-index.h" |
bf0231c6 | 17 | #include "submodule.h" |
64043556 | 18 | #include "commit-reach.h" |
a8be83fe | 19 | |
4866ccf0 JH |
20 | #define DO_REVS 1 |
21 | #define DO_NOREV 2 | |
22 | #define DO_FLAGS 4 | |
23 | #define DO_NONFLAGS 8 | |
24 | static int filter = ~0; | |
25 | ||
96f1e58f | 26 | static const char *def; |
023d66ed | 27 | |
042a4ed7 LT |
28 | #define NORMAL 0 |
29 | #define REVERSED 1 | |
30 | static int show_type = NORMAL; | |
a6d97d49 JH |
31 | |
32 | #define SHOW_SYMBOLIC_ASIS 1 | |
33 | #define SHOW_SYMBOLIC_FULL 2 | |
96f1e58f DR |
34 | static int symbolic; |
35 | static int abbrev; | |
a45d3469 BW |
36 | static int abbrev_ref; |
37 | static int abbrev_ref_strict; | |
96f1e58f | 38 | static int output_sq; |
4866ccf0 | 39 | |
f8c87212 | 40 | static int stuck_long; |
9dc01bf0 | 41 | static struct string_list *ref_excludes; |
f8c87212 | 42 | |
921d865e LT |
43 | /* |
44 | * Some arguments are relevant "revision" arguments, | |
45 | * others are about output format or other details. | |
46 | * This sorts it all out. | |
47 | */ | |
48 | static int is_rev_argument(const char *arg) | |
49 | { | |
50 | static const char *rev_args[] = { | |
e091eb93 | 51 | "--all", |
4866ccf0 | 52 | "--bisect", |
5a83f3be | 53 | "--dense", |
b09fe971 | 54 | "--branches=", |
a62be77f | 55 | "--branches", |
4866ccf0 | 56 | "--header", |
cc243c3c | 57 | "--ignore-missing", |
921d865e | 58 | "--max-age=", |
4866ccf0 | 59 | "--max-count=", |
4866ccf0 | 60 | "--min-age=", |
5ccfb758 | 61 | "--no-merges", |
ad5aeede MG |
62 | "--min-parents=", |
63 | "--no-min-parents", | |
64 | "--max-parents=", | |
65 | "--no-max-parents", | |
4866ccf0 | 66 | "--objects", |
c6496575 | 67 | "--objects-edge", |
4866ccf0 JH |
68 | "--parents", |
69 | "--pretty", | |
b09fe971 | 70 | "--remotes=", |
a62be77f | 71 | "--remotes", |
d08bae7e | 72 | "--glob=", |
5a83f3be | 73 | "--sparse", |
b09fe971 | 74 | "--tags=", |
a62be77f | 75 | "--tags", |
4866ccf0 | 76 | "--topo-order", |
4c8725f1 | 77 | "--date-order", |
4866ccf0 | 78 | "--unpacked", |
921d865e LT |
79 | NULL |
80 | }; | |
81 | const char **p = rev_args; | |
82 | ||
8233340c EW |
83 | /* accept -<digit>, like traditional "head" */ |
84 | if ((*arg == '-') && isdigit(arg[1])) | |
85 | return 1; | |
86 | ||
921d865e LT |
87 | for (;;) { |
88 | const char *str = *p++; | |
89 | int len; | |
90 | if (!str) | |
91 | return 0; | |
92 | len = strlen(str); | |
4866ccf0 JH |
93 | if (!strcmp(arg, str) || |
94 | (str[len-1] == '=' && !strncmp(arg, str, len))) | |
921d865e LT |
95 | return 1; |
96 | } | |
97 | } | |
98 | ||
4866ccf0 | 99 | /* Output argument as a string, either SQ or normal */ |
5bb2c65a JH |
100 | static void show(const char *arg) |
101 | { | |
102 | if (output_sq) { | |
103 | int sq = '\'', ch; | |
104 | ||
105 | putchar(sq); | |
106 | while ((ch = *arg++)) { | |
107 | if (ch == sq) | |
108 | fputs("'\\'", stdout); | |
109 | putchar(ch); | |
110 | } | |
111 | putchar(sq); | |
112 | putchar(' '); | |
113 | } | |
114 | else | |
115 | puts(arg); | |
116 | } | |
117 | ||
e00f3790 JS |
118 | /* Like show(), but with a negation prefix according to type */ |
119 | static void show_with_type(int type, const char *arg) | |
120 | { | |
121 | if (type != show_type) | |
122 | putchar('^'); | |
123 | show(arg); | |
124 | } | |
125 | ||
4866ccf0 | 126 | /* Output a revision, only if filter allows it */ |
8bc095f7 | 127 | static void show_rev(int type, const struct object_id *oid, const char *name) |
023d66ed | 128 | { |
4866ccf0 | 129 | if (!(filter & DO_REVS)) |
023d66ed | 130 | return; |
4866ccf0 | 131 | def = NULL; |
5bb2c65a | 132 | |
a45d3469 BW |
133 | if ((symbolic || abbrev_ref) && name) { |
134 | if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { | |
8bc095f7 | 135 | struct object_id discard; |
a6d97d49 JH |
136 | char *full; |
137 | ||
cca5fa64 | 138 | switch (dwim_ref(name, strlen(name), &discard, &full)) { |
a6d97d49 JH |
139 | case 0: |
140 | /* | |
141 | * Not found -- not a ref. We could | |
142 | * emit "name" here, but symbolic-full | |
143 | * users are interested in finding the | |
144 | * refs spelled in full, and they would | |
145 | * need to filter non-refs if we did so. | |
146 | */ | |
147 | break; | |
148 | case 1: /* happy */ | |
a45d3469 BW |
149 | if (abbrev_ref) |
150 | full = shorten_unambiguous_ref(full, | |
151 | abbrev_ref_strict); | |
e00f3790 | 152 | show_with_type(type, full); |
a6d97d49 JH |
153 | break; |
154 | default: /* ambiguous */ | |
155 | error("refname '%s' is ambiguous", name); | |
156 | break; | |
157 | } | |
28b35632 | 158 | free(full); |
a6d97d49 | 159 | } else { |
e00f3790 | 160 | show_with_type(type, name); |
a6d97d49 JH |
161 | } |
162 | } | |
d5012508 | 163 | else if (abbrev) |
aab9583f | 164 | show_with_type(type, find_unique_abbrev(oid, abbrev)); |
30b96fce | 165 | else |
8bc095f7 | 166 | show_with_type(type, oid_to_hex(oid)); |
023d66ed LT |
167 | } |
168 | ||
4866ccf0 | 169 | /* Output a flag, only if filter allows it. */ |
16cee38a | 170 | static int show_flag(const char *arg) |
023d66ed | 171 | { |
4866ccf0 | 172 | if (!(filter & DO_FLAGS)) |
9523a4c2 LT |
173 | return 0; |
174 | if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) { | |
0360e99d | 175 | show(arg); |
9523a4c2 LT |
176 | return 1; |
177 | } | |
178 | return 0; | |
023d66ed LT |
179 | } |
180 | ||
dfd1b749 | 181 | static int show_default(void) |
023d66ed | 182 | { |
16cee38a | 183 | const char *s = def; |
023d66ed LT |
184 | |
185 | if (s) { | |
8bc095f7 | 186 | struct object_id oid; |
023d66ed LT |
187 | |
188 | def = NULL; | |
8bc095f7 | 189 | if (!get_oid(s, &oid)) { |
190 | show_rev(NORMAL, &oid, s); | |
dfd1b749 | 191 | return 1; |
023d66ed | 192 | } |
023d66ed | 193 | } |
dfd1b749 | 194 | return 0; |
023d66ed LT |
195 | } |
196 | ||
e23b0368 | 197 | static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) |
960bba0d | 198 | { |
9dc01bf0 JH |
199 | if (ref_excluded(ref_excludes, refname)) |
200 | return 0; | |
8bc095f7 | 201 | show_rev(NORMAL, oid, refname); |
960bba0d LT |
202 | return 0; |
203 | } | |
204 | ||
e23b0368 | 205 | static int anti_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) |
ad3f9a71 | 206 | { |
8bc095f7 | 207 | show_rev(REVERSED, oid, refname); |
ad3f9a71 LT |
208 | return 0; |
209 | } | |
210 | ||
1b7ba794 | 211 | static int show_abbrev(const struct object_id *oid, void *cb_data) |
957d7406 | 212 | { |
8bc095f7 | 213 | show_rev(NORMAL, oid, NULL); |
957d7406 JH |
214 | return 0; |
215 | } | |
216 | ||
c1babb1d LT |
217 | static void show_datestring(const char *flag, const char *datestr) |
218 | { | |
5b1ef2ce | 219 | char *buffer; |
c1babb1d LT |
220 | |
221 | /* date handling requires both flags and revs */ | |
222 | if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) | |
223 | return; | |
cb71f8bd | 224 | buffer = xstrfmt("%s%"PRItime, flag, approxidate(datestr)); |
c1babb1d | 225 | show(buffer); |
5b1ef2ce | 226 | free(buffer); |
c1babb1d LT |
227 | } |
228 | ||
12b9d327 | 229 | static int show_file(const char *arg, int output_prefix) |
7a3dd472 | 230 | { |
7b34c2fa | 231 | show_default(); |
9ad0a933 | 232 | if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { |
12b9d327 JK |
233 | if (output_prefix) { |
234 | const char *prefix = startup_info->prefix; | |
e4da43b1 JK |
235 | char *fname = prefix_filename(prefix, arg); |
236 | show(fname); | |
237 | free(fname); | |
12b9d327 JK |
238 | } else |
239 | show(arg); | |
9ad0a933 LT |
240 | return 1; |
241 | } | |
242 | return 0; | |
7a3dd472 LT |
243 | } |
244 | ||
b7d936b2 | 245 | static int try_difference(const char *arg) |
3dd4e732 SB |
246 | { |
247 | char *dotdot; | |
ae90bdce BW |
248 | struct object_id start_oid; |
249 | struct object_id end_oid; | |
250 | const char *end; | |
251 | const char *start; | |
3dd4e732 | 252 | int symmetric; |
003c84f6 | 253 | static const char head_by_default[] = "HEAD"; |
3dd4e732 SB |
254 | |
255 | if (!(dotdot = strstr(arg, ".."))) | |
256 | return 0; | |
ae90bdce BW |
257 | end = dotdot + 2; |
258 | start = arg; | |
259 | symmetric = (*end == '.'); | |
3dd4e732 SB |
260 | |
261 | *dotdot = 0; | |
ae90bdce | 262 | end += symmetric; |
3dd4e732 | 263 | |
ae90bdce BW |
264 | if (!*end) |
265 | end = head_by_default; | |
3dd4e732 | 266 | if (dotdot == arg) |
ae90bdce | 267 | start = head_by_default; |
003c84f6 | 268 | |
ae90bdce | 269 | if (start == head_by_default && end == head_by_default && |
003c84f6 JH |
270 | !symmetric) { |
271 | /* | |
272 | * Just ".."? That is not a range but the | |
273 | * pathspec for the parent directory. | |
274 | */ | |
275 | *dotdot = '.'; | |
276 | return 0; | |
277 | } | |
278 | ||
ae90bdce BW |
279 | if (!get_oid_committish(start, &start_oid) && !get_oid_committish(end, &end_oid)) { |
280 | show_rev(NORMAL, &end_oid, end); | |
281 | show_rev(symmetric ? NORMAL : REVERSED, &start_oid, start); | |
3dd4e732 SB |
282 | if (symmetric) { |
283 | struct commit_list *exclude; | |
284 | struct commit *a, *b; | |
2122f675 SB |
285 | a = lookup_commit_reference(the_repository, &start_oid); |
286 | b = lookup_commit_reference(the_repository, &end_oid); | |
0ed556d3 EN |
287 | if (!a || !b) { |
288 | *dotdot = '.'; | |
289 | return 0; | |
290 | } | |
2ce406cc | 291 | exclude = get_merge_bases(a, b); |
3dd4e732 | 292 | while (exclude) { |
e510ab89 | 293 | struct commit *commit = pop_commit(&exclude); |
8bc095f7 | 294 | show_rev(REVERSED, &commit->object.oid, NULL); |
3dd4e732 SB |
295 | } |
296 | } | |
62f162f8 | 297 | *dotdot = '.'; |
3dd4e732 SB |
298 | return 1; |
299 | } | |
300 | *dotdot = '.'; | |
301 | return 0; | |
302 | } | |
303 | ||
2122f8b9 BS |
304 | static int try_parent_shorthands(const char *arg) |
305 | { | |
306 | char *dotdot; | |
8bc095f7 | 307 | struct object_id oid; |
2122f8b9 BS |
308 | struct commit *commit; |
309 | struct commit_list *parents; | |
8779351d VN |
310 | int parent_number; |
311 | int include_rev = 0; | |
312 | int include_parents = 0; | |
313 | int exclude_parent = 0; | |
314 | ||
315 | if ((dotdot = strstr(arg, "^!"))) { | |
316 | include_rev = 1; | |
317 | if (dotdot[2]) | |
318 | return 0; | |
319 | } else if ((dotdot = strstr(arg, "^@"))) { | |
320 | include_parents = 1; | |
321 | if (dotdot[2]) | |
322 | return 0; | |
323 | } else if ((dotdot = strstr(arg, "^-"))) { | |
324 | include_rev = 1; | |
325 | exclude_parent = 1; | |
326 | ||
327 | if (dotdot[2]) { | |
328 | char *end; | |
329 | exclude_parent = strtoul(dotdot + 2, &end, 10); | |
330 | if (*end != '\0' || !exclude_parent) | |
331 | return 0; | |
332 | } | |
333 | } else | |
2122f8b9 BS |
334 | return 0; |
335 | ||
336 | *dotdot = 0; | |
0ed556d3 | 337 | if (get_oid_committish(arg, &oid) || |
2122f675 | 338 | !(commit = lookup_commit_reference(the_repository, &oid))) { |
62f162f8 | 339 | *dotdot = '^'; |
2122f8b9 | 340 | return 0; |
62f162f8 | 341 | } |
2122f8b9 | 342 | |
8779351d VN |
343 | if (exclude_parent && |
344 | exclude_parent > commit_list_count(commit->parents)) { | |
345 | *dotdot = '^'; | |
346 | return 0; | |
347 | } | |
348 | ||
349 | if (include_rev) | |
8bc095f7 | 350 | show_rev(NORMAL, &oid, arg); |
8779351d VN |
351 | for (parents = commit->parents, parent_number = 1; |
352 | parents; | |
353 | parents = parents->next, parent_number++) { | |
a2e7b04c JK |
354 | char *name = NULL; |
355 | ||
8779351d VN |
356 | if (exclude_parent && parent_number != exclude_parent) |
357 | continue; | |
358 | ||
a2e7b04c JK |
359 | if (symbolic) |
360 | name = xstrfmt("%s^%d", arg, parent_number); | |
8779351d | 361 | show_rev(include_parents ? NORMAL : REVERSED, |
8bc095f7 | 362 | &parents->item->object.oid, name); |
a2e7b04c | 363 | free(name); |
8779351d | 364 | } |
2122f8b9 | 365 | |
62f162f8 | 366 | *dotdot = '^'; |
2122f8b9 BS |
367 | return 1; |
368 | } | |
369 | ||
21d47835 PH |
370 | static int parseopt_dump(const struct option *o, const char *arg, int unset) |
371 | { | |
372 | struct strbuf *parsed = o->value; | |
373 | if (unset) | |
374 | strbuf_addf(parsed, " --no-%s", o->long_name); | |
f8c87212 | 375 | else if (o->short_name && (o->long_name == NULL || !stuck_long)) |
21d47835 PH |
376 | strbuf_addf(parsed, " -%c", o->short_name); |
377 | else | |
378 | strbuf_addf(parsed, " --%s", o->long_name); | |
379 | if (arg) { | |
f8c87212 NV |
380 | if (!stuck_long) |
381 | strbuf_addch(parsed, ' '); | |
382 | else if (o->long_name) | |
383 | strbuf_addch(parsed, '='); | |
21d47835 PH |
384 | sq_quote_buf(parsed, arg); |
385 | } | |
386 | return 0; | |
387 | } | |
388 | ||
389 | static const char *skipspaces(const char *s) | |
390 | { | |
391 | while (isspace(*s)) | |
392 | s++; | |
393 | return s; | |
394 | } | |
395 | ||
33e75122 BC |
396 | static char *findspace(const char *s) |
397 | { | |
398 | for (; *s; s++) | |
399 | if (isspace(*s)) | |
400 | return (char*)s; | |
401 | return NULL; | |
402 | } | |
403 | ||
21d47835 PH |
404 | static int cmd_parseopt(int argc, const char **argv, const char *prefix) |
405 | { | |
6e0800ef | 406 | static int keep_dashdash = 0, stop_at_non_option = 0; |
21d47835 | 407 | static char const * const parseopt_usage[] = { |
9c9b4f2f | 408 | N_("git rev-parse --parseopt [<options>] -- [<args>...]"), |
21d47835 PH |
409 | NULL |
410 | }; | |
411 | static struct option parseopt_opts[] = { | |
d5d09d47 | 412 | OPT_BOOL(0, "keep-dashdash", &keep_dashdash, |
2c7c184c | 413 | N_("keep the `--` passed as an arg")), |
d5d09d47 | 414 | OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option, |
2c7c184c NTND |
415 | N_("stop parsing after the " |
416 | "first non-option argument")), | |
f8c87212 NV |
417 | OPT_BOOL(0, "stuck-long", &stuck_long, |
418 | N_("output in stuck long form")), | |
21d47835 PH |
419 | OPT_END(), |
420 | }; | |
2d893dff | 421 | static const char * const flag_chars = "*=?!"; |
21d47835 | 422 | |
f285a2d7 | 423 | struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT; |
21d47835 PH |
424 | const char **usage = NULL; |
425 | struct option *opts = NULL; | |
426 | int onb = 0, osz = 0, unb = 0, usz = 0; | |
427 | ||
21d47835 | 428 | strbuf_addstr(&parsed, "set --"); |
37782920 | 429 | argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage, |
21d47835 PH |
430 | PARSE_OPT_KEEP_DASHDASH); |
431 | if (argc < 1 || strcmp(argv[0], "--")) | |
432 | usage_with_options(parseopt_usage, parseopt_opts); | |
433 | ||
21d47835 PH |
434 | /* get the usage up to the first line with a -- on it */ |
435 | for (;;) { | |
72e37b6a | 436 | if (strbuf_getline(&sb, stdin) == EOF) |
21d47835 PH |
437 | die("premature end of input"); |
438 | ALLOC_GROW(usage, unb + 1, usz); | |
439 | if (!strcmp("--", sb.buf)) { | |
440 | if (unb < 1) | |
441 | die("no usage string given before the `--' separator"); | |
442 | usage[unb] = NULL; | |
443 | break; | |
444 | } | |
445 | usage[unb++] = strbuf_detach(&sb, NULL); | |
446 | } | |
447 | ||
9bab5b60 | 448 | /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ |
72e37b6a | 449 | while (strbuf_getline(&sb, stdin) != EOF) { |
21d47835 | 450 | const char *s; |
28a8d0f7 | 451 | char *help; |
21d47835 PH |
452 | struct option *o; |
453 | ||
454 | if (!sb.len) | |
455 | continue; | |
456 | ||
457 | ALLOC_GROW(opts, onb + 1, osz); | |
458 | memset(opts + onb, 0, sizeof(opts[onb])); | |
459 | ||
460 | o = &opts[onb++]; | |
33e75122 BC |
461 | help = findspace(sb.buf); |
462 | if (!help || sb.buf == help) { | |
21d47835 | 463 | o->type = OPTION_GROUP; |
e1033436 | 464 | o->help = xstrdup(skipspaces(sb.buf)); |
21d47835 PH |
465 | continue; |
466 | } | |
467 | ||
28a8d0f7 BC |
468 | *help = '\0'; |
469 | ||
21d47835 | 470 | o->type = OPTION_CALLBACK; |
28a8d0f7 | 471 | o->help = xstrdup(skipspaces(help+1)); |
21d47835 | 472 | o->value = &parsed; |
ff962a3f | 473 | o->flags = PARSE_OPT_NOARG; |
21d47835 | 474 | o->callback = &parseopt_dump; |
9bab5b60 | 475 | |
2d893dff IB |
476 | /* name(s) */ |
477 | s = strpbrk(sb.buf, flag_chars); | |
478 | if (s == NULL) | |
479 | s = help; | |
480 | ||
481 | if (s - sb.buf == 1) /* short option only */ | |
482 | o->short_name = *sb.buf; | |
483 | else if (sb.buf[1] != ',') /* long option only */ | |
484 | o->long_name = xmemdupz(sb.buf, s - sb.buf); | |
485 | else { | |
486 | o->short_name = *sb.buf; | |
487 | o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); | |
488 | } | |
489 | ||
490 | /* flags */ | |
491 | while (s < help) { | |
492 | switch (*s++) { | |
ff962a3f PH |
493 | case '=': |
494 | o->flags &= ~PARSE_OPT_NOARG; | |
2d893dff | 495 | continue; |
ff962a3f PH |
496 | case '?': |
497 | o->flags &= ~PARSE_OPT_NOARG; | |
498 | o->flags |= PARSE_OPT_OPTARG; | |
2d893dff | 499 | continue; |
ff962a3f PH |
500 | case '!': |
501 | o->flags |= PARSE_OPT_NONEG; | |
2d893dff | 502 | continue; |
ff962a3f PH |
503 | case '*': |
504 | o->flags |= PARSE_OPT_HIDDEN; | |
2d893dff | 505 | continue; |
ff962a3f | 506 | } |
2d893dff IB |
507 | s--; |
508 | break; | |
21d47835 PH |
509 | } |
510 | ||
2d893dff IB |
511 | if (s < help) |
512 | o->argh = xmemdupz(s, help - s); | |
21d47835 PH |
513 | } |
514 | strbuf_release(&sb); | |
515 | ||
516 | /* put an OPT_END() */ | |
517 | ALLOC_GROW(opts, onb + 1, osz); | |
518 | memset(opts + onb, 0, sizeof(opts[onb])); | |
37782920 | 519 | argc = parse_options(argc, argv, prefix, opts, usage, |
29981380 | 520 | (keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0) | |
fcd91f8d | 521 | (stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0) | |
47e9cd28 | 522 | PARSE_OPT_SHELL_EVAL); |
21d47835 | 523 | |
02962d36 | 524 | strbuf_addstr(&parsed, " --"); |
e35f11c2 | 525 | sq_quote_argv(&parsed, argv); |
21d47835 PH |
526 | puts(parsed.buf); |
527 | return 0; | |
528 | } | |
529 | ||
50325377 CC |
530 | static int cmd_sq_quote(int argc, const char **argv) |
531 | { | |
532 | struct strbuf buf = STRBUF_INIT; | |
533 | ||
534 | if (argc) | |
e35f11c2 | 535 | sq_quote_argv(&buf, argv); |
50325377 CC |
536 | printf("%s\n", buf.buf); |
537 | strbuf_release(&buf); | |
538 | ||
539 | return 0; | |
540 | } | |
541 | ||
b1b35969 CC |
542 | static void die_no_single_rev(int quiet) |
543 | { | |
544 | if (quiet) | |
545 | exit(1); | |
546 | else | |
547 | die("Needed a single revision"); | |
548 | } | |
549 | ||
7006b5be | 550 | static const char builtin_rev_parse_usage[] = |
9c9b4f2f | 551 | N_("git rev-parse --parseopt [<options>] -- [<args>...]\n" |
2c7c184c | 552 | " or: git rev-parse --sq-quote [<arg>...]\n" |
9c9b4f2f | 553 | " or: git rev-parse [<options>] [<arg>...]\n" |
2c7c184c NTND |
554 | "\n" |
555 | "Run \"git rev-parse --parseopt -h\" for more information on the first usage."); | |
7006b5be | 556 | |
9d16ca65 JK |
557 | /* |
558 | * Parse "opt" or "opt=<value>", setting value respectively to either | |
559 | * NULL or the string after "=". | |
560 | */ | |
561 | static int opt_with_value(const char *arg, const char *opt, const char **value) | |
562 | { | |
563 | if (skip_prefix(arg, opt, &arg)) { | |
564 | if (!*arg) { | |
565 | *value = NULL; | |
566 | return 1; | |
567 | } | |
568 | if (*arg++ == '=') { | |
569 | *value = arg; | |
570 | return 1; | |
571 | } | |
572 | } | |
573 | return 0; | |
574 | } | |
575 | ||
ffddfc63 JK |
576 | static void handle_ref_opt(const char *pattern, const char *prefix) |
577 | { | |
578 | if (pattern) | |
579 | for_each_glob_ref_in(show_reference, pattern, prefix, NULL); | |
580 | else | |
581 | for_each_ref_in(prefix, show_reference, NULL); | |
582 | clear_ref_exclusion(&ref_excludes); | |
583 | } | |
584 | ||
a633fca0 | 585 | int cmd_rev_parse(int argc, const char **argv, const char *prefix) |
178cb243 | 586 | { |
dfd1b749 | 587 | int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; |
fc7d47f0 | 588 | int did_repo_setup = 0; |
14185673 | 589 | int has_dashdash = 0; |
12b9d327 | 590 | int output_prefix = 0; |
8bc095f7 | 591 | struct object_id oid; |
c41a87dd | 592 | unsigned int flags = 0; |
dfd1b749 | 593 | const char *name = NULL; |
c41a87dd | 594 | struct object_context unused; |
098aa867 | 595 | struct strbuf buf = STRBUF_INIT; |
7e0d029f | 596 | const int hexsz = the_hash_algo->hexsz; |
a62be77f | 597 | |
21d47835 PH |
598 | if (argc > 1 && !strcmp("--parseopt", argv[1])) |
599 | return cmd_parseopt(argc - 1, argv + 1, prefix); | |
600 | ||
50325377 CC |
601 | if (argc > 1 && !strcmp("--sq-quote", argv[1])) |
602 | return cmd_sq_quote(argc - 2, argv + 2); | |
603 | ||
7006b5be JN |
604 | if (argc > 1 && !strcmp("-h", argv[1])) |
605 | usage(builtin_rev_parse_usage); | |
606 | ||
14185673 JK |
607 | for (i = 1; i < argc; i++) { |
608 | if (!strcmp(argv[i], "--")) { | |
609 | has_dashdash = 1; | |
610 | break; | |
611 | } | |
612 | } | |
613 | ||
fc7d47f0 JK |
614 | /* No options; just report on whether we're in a git repo or not. */ |
615 | if (argc == 1) { | |
616 | setup_git_directory(); | |
617 | git_config(git_default_config, NULL); | |
618 | return 0; | |
619 | } | |
620 | ||
178cb243 | 621 | for (i = 1; i < argc; i++) { |
16cee38a | 622 | const char *arg = argv[i]; |
fb18a2ed | 623 | |
fc7d47f0 JK |
624 | if (!strcmp(arg, "--local-env-vars")) { |
625 | int i; | |
626 | for (i = 0; local_repo_env[i]; i++) | |
627 | printf("%s\n", local_repo_env[i]); | |
628 | continue; | |
629 | } | |
630 | if (!strcmp(arg, "--resolve-git-dir")) { | |
631 | const char *gitdir = argv[++i]; | |
632 | if (!gitdir) | |
633 | die("--resolve-git-dir requires an argument"); | |
634 | gitdir = resolve_gitdir(gitdir); | |
635 | if (!gitdir) | |
636 | die("not a gitdir '%s'", argv[i]); | |
637 | puts(gitdir); | |
638 | continue; | |
639 | } | |
640 | ||
641 | /* The rest of the options require a git repository. */ | |
642 | if (!did_repo_setup) { | |
643 | prefix = setup_git_directory(); | |
644 | git_config(git_default_config, NULL); | |
645 | did_repo_setup = 1; | |
646 | } | |
647 | ||
557bd833 NTND |
648 | if (!strcmp(arg, "--git-path")) { |
649 | if (!argv[i + 1]) | |
650 | die("--git-path requires an argument"); | |
098aa867 JS |
651 | strbuf_reset(&buf); |
652 | puts(relative_path(git_path("%s", argv[i + 1]), | |
653 | prefix, &buf)); | |
557bd833 NTND |
654 | i++; |
655 | continue; | |
656 | } | |
178cb243 | 657 | if (as_is) { |
12b9d327 | 658 | if (show_file(arg, output_prefix) && as_is < 2) |
023e37c3 | 659 | verify_filename(prefix, arg, 0); |
178cb243 LT |
660 | continue; |
661 | } | |
3af06987 EW |
662 | if (!strcmp(arg,"-n")) { |
663 | if (++i >= argc) | |
664 | die("-n requires an argument"); | |
665 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) { | |
666 | show(arg); | |
667 | show(argv[i]); | |
668 | } | |
669 | continue; | |
670 | } | |
59556548 | 671 | if (starts_with(arg, "-n")) { |
3af06987 EW |
672 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) |
673 | show(arg); | |
674 | continue; | |
675 | } | |
676 | ||
178cb243 LT |
677 | if (*arg == '-') { |
678 | if (!strcmp(arg, "--")) { | |
fb18a2ed | 679 | as_is = 2; |
a08b6505 LT |
680 | /* Pass on the "--" if we show anything but files.. */ |
681 | if (filter & (DO_FLAGS | DO_REVS)) | |
12b9d327 | 682 | show_file(arg, 0); |
4866ccf0 | 683 | continue; |
178cb243 LT |
684 | } |
685 | if (!strcmp(arg, "--default")) { | |
a43219f2 DS |
686 | def = argv[++i]; |
687 | if (!def) | |
688 | die("--default requires an argument"); | |
178cb243 LT |
689 | continue; |
690 | } | |
12b9d327 | 691 | if (!strcmp(arg, "--prefix")) { |
a43219f2 DS |
692 | prefix = argv[++i]; |
693 | if (!prefix) | |
694 | die("--prefix requires an argument"); | |
12b9d327 JK |
695 | startup_info->prefix = prefix; |
696 | output_prefix = 1; | |
12b9d327 JK |
697 | continue; |
698 | } | |
8ebb0184 | 699 | if (!strcmp(arg, "--revs-only")) { |
4866ccf0 | 700 | filter &= ~DO_NOREV; |
8ebb0184 LT |
701 | continue; |
702 | } | |
703 | if (!strcmp(arg, "--no-revs")) { | |
4866ccf0 | 704 | filter &= ~DO_REVS; |
8ebb0184 LT |
705 | continue; |
706 | } | |
f79b65aa | 707 | if (!strcmp(arg, "--flags")) { |
4866ccf0 | 708 | filter &= ~DO_NONFLAGS; |
f79b65aa LT |
709 | continue; |
710 | } | |
711 | if (!strcmp(arg, "--no-flags")) { | |
4866ccf0 | 712 | filter &= ~DO_FLAGS; |
f79b65aa LT |
713 | continue; |
714 | } | |
023d66ed | 715 | if (!strcmp(arg, "--verify")) { |
4866ccf0 JH |
716 | filter &= ~(DO_FLAGS|DO_NOREV); |
717 | verify = 1; | |
023d66ed | 718 | continue; |
921d865e | 719 | } |
b1b35969 CC |
720 | if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { |
721 | quiet = 1; | |
321c89bf | 722 | flags |= GET_OID_QUIETLY; |
b1b35969 CC |
723 | continue; |
724 | } | |
9d16ca65 | 725 | if (opt_with_value(arg, "--short", &arg)) { |
d5012508 JH |
726 | filter &= ~(DO_FLAGS|DO_NOREV); |
727 | verify = 1; | |
728 | abbrev = DEFAULT_ABBREV; | |
9d16ca65 | 729 | if (!arg) |
7b5b7721 | 730 | continue; |
9d16ca65 | 731 | abbrev = strtoul(arg, NULL, 10); |
1dc4fb84 JH |
732 | if (abbrev < MINIMUM_ABBREV) |
733 | abbrev = MINIMUM_ABBREV; | |
7e0d029f | 734 | else if (hexsz <= abbrev) |
735 | abbrev = hexsz; | |
d5012508 JH |
736 | continue; |
737 | } | |
5bb2c65a JH |
738 | if (!strcmp(arg, "--sq")) { |
739 | output_sq = 1; | |
740 | continue; | |
741 | } | |
042a4ed7 LT |
742 | if (!strcmp(arg, "--not")) { |
743 | show_type ^= REVERSED; | |
744 | continue; | |
745 | } | |
30b96fce | 746 | if (!strcmp(arg, "--symbolic")) { |
a6d97d49 JH |
747 | symbolic = SHOW_SYMBOLIC_ASIS; |
748 | continue; | |
749 | } | |
750 | if (!strcmp(arg, "--symbolic-full-name")) { | |
751 | symbolic = SHOW_SYMBOLIC_FULL; | |
30b96fce JH |
752 | continue; |
753 | } | |
9d16ca65 | 754 | if (opt_with_value(arg, "--abbrev-ref", &arg)) { |
a45d3469 BW |
755 | abbrev_ref = 1; |
756 | abbrev_ref_strict = warn_ambiguous_refs; | |
9d16ca65 JK |
757 | if (arg) { |
758 | if (!strcmp(arg, "strict")) | |
a45d3469 | 759 | abbrev_ref_strict = 1; |
9d16ca65 | 760 | else if (!strcmp(arg, "loose")) |
a45d3469 BW |
761 | abbrev_ref_strict = 0; |
762 | else | |
9d16ca65 JK |
763 | die("unknown mode for --abbrev-ref: %s", |
764 | arg); | |
a45d3469 BW |
765 | } |
766 | continue; | |
767 | } | |
960bba0d | 768 | if (!strcmp(arg, "--all")) { |
e23b0368 | 769 | for_each_ref(show_reference, NULL); |
52210480 | 770 | clear_ref_exclusion(&ref_excludes); |
960bba0d LT |
771 | continue; |
772 | } | |
ef87cc79 JK |
773 | if (skip_prefix(arg, "--disambiguate=", &arg)) { |
774 | for_each_abbrev(arg, show_abbrev, NULL); | |
957d7406 JH |
775 | continue; |
776 | } | |
ad3f9a71 | 777 | if (!strcmp(arg, "--bisect")) { |
1d0538e4 JK |
778 | for_each_fullref_in("refs/bisect/bad", show_reference, NULL, 0); |
779 | for_each_fullref_in("refs/bisect/good", anti_reference, NULL, 0); | |
ad3f9a71 LT |
780 | continue; |
781 | } | |
ffddfc63 JK |
782 | if (opt_with_value(arg, "--branches", &arg)) { |
783 | handle_ref_opt(arg, "refs/heads/"); | |
a62be77f SE |
784 | continue; |
785 | } | |
ffddfc63 JK |
786 | if (opt_with_value(arg, "--tags", &arg)) { |
787 | handle_ref_opt(arg, "refs/tags/"); | |
d08bae7e IL |
788 | continue; |
789 | } | |
ef87cc79 | 790 | if (skip_prefix(arg, "--glob=", &arg)) { |
ffddfc63 | 791 | handle_ref_opt(arg, NULL); |
b09fe971 IL |
792 | continue; |
793 | } | |
ffddfc63 JK |
794 | if (opt_with_value(arg, "--remotes", &arg)) { |
795 | handle_ref_opt(arg, "refs/remotes/"); | |
9dc01bf0 JH |
796 | continue; |
797 | } | |
ef87cc79 JK |
798 | if (skip_prefix(arg, "--exclude=", &arg)) { |
799 | add_ref_exclusion(&ref_excludes, arg); | |
a62be77f SE |
800 | continue; |
801 | } | |
7cceca5c SD |
802 | if (!strcmp(arg, "--show-toplevel")) { |
803 | const char *work_tree = get_git_work_tree(); | |
804 | if (work_tree) | |
805 | puts(work_tree); | |
806 | continue; | |
807 | } | |
bf0231c6 SB |
808 | if (!strcmp(arg, "--show-superproject-working-tree")) { |
809 | const char *superproject = get_superproject_working_tree(); | |
810 | if (superproject) | |
811 | puts(superproject); | |
812 | continue; | |
813 | } | |
d288a700 | 814 | if (!strcmp(arg, "--show-prefix")) { |
4866ccf0 JH |
815 | if (prefix) |
816 | puts(prefix); | |
658219f1 RL |
817 | else |
818 | putchar('\n'); | |
d288a700 LT |
819 | continue; |
820 | } | |
5f94c730 JH |
821 | if (!strcmp(arg, "--show-cdup")) { |
822 | const char *pfx = prefix; | |
e90fdc39 JS |
823 | if (!is_inside_work_tree()) { |
824 | const char *work_tree = | |
825 | get_git_work_tree(); | |
826 | if (work_tree) | |
827 | printf("%s\n", work_tree); | |
828 | continue; | |
829 | } | |
5f94c730 JH |
830 | while (pfx) { |
831 | pfx = strchr(pfx, '/'); | |
832 | if (pfx) { | |
833 | pfx++; | |
834 | printf("../"); | |
835 | } | |
836 | } | |
837 | putchar('\n'); | |
838 | continue; | |
839 | } | |
a2f5a876 SG |
840 | if (!strcmp(arg, "--git-dir") || |
841 | !strcmp(arg, "--absolute-git-dir")) { | |
a8783eeb | 842 | const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); |
56b9f6e7 | 843 | char *cwd; |
d06f15d9 | 844 | int len; |
a2f5a876 SG |
845 | if (arg[2] == 'g') { /* --git-dir */ |
846 | if (gitdir) { | |
847 | puts(gitdir); | |
848 | continue; | |
849 | } | |
850 | if (!prefix) { | |
851 | puts(".git"); | |
852 | continue; | |
853 | } | |
854 | } else { /* --absolute-git-dir */ | |
855 | if (!gitdir && !prefix) | |
856 | gitdir = ".git"; | |
857 | if (gitdir) { | |
858 | puts(real_path(gitdir)); | |
859 | continue; | |
860 | } | |
a8783eeb | 861 | } |
56b9f6e7 | 862 | cwd = xgetcwd(); |
d06f15d9 NTND |
863 | len = strlen(cwd); |
864 | printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); | |
56b9f6e7 | 865 | free(cwd); |
a8783eeb LT |
866 | continue; |
867 | } | |
31e26ebc | 868 | if (!strcmp(arg, "--git-common-dir")) { |
098aa867 JS |
869 | strbuf_reset(&buf); |
870 | puts(relative_path(get_git_common_dir(), | |
871 | prefix, &buf)); | |
31e26ebc NTND |
872 | continue; |
873 | } | |
6d9ba67b JS |
874 | if (!strcmp(arg, "--is-inside-git-dir")) { |
875 | printf("%s\n", is_inside_git_dir() ? "true" | |
876 | : "false"); | |
877 | continue; | |
878 | } | |
892c41b9 ML |
879 | if (!strcmp(arg, "--is-inside-work-tree")) { |
880 | printf("%s\n", is_inside_work_tree() ? "true" | |
881 | : "false"); | |
882 | continue; | |
883 | } | |
493c774e ML |
884 | if (!strcmp(arg, "--is-bare-repository")) { |
885 | printf("%s\n", is_bare_repository() ? "true" | |
886 | : "false"); | |
887 | continue; | |
888 | } | |
417abfde | 889 | if (!strcmp(arg, "--is-shallow-repository")) { |
c8813487 SB |
890 | printf("%s\n", |
891 | is_repository_shallow(the_repository) ? "true" | |
417abfde ØW |
892 | : "false"); |
893 | continue; | |
894 | } | |
a76295da NTND |
895 | if (!strcmp(arg, "--shared-index-path")) { |
896 | if (read_cache() < 0) | |
897 | die(_("Could not read the index")); | |
898 | if (the_index.split_index) { | |
2182abd9 | 899 | const struct object_id *oid = &the_index.split_index->base_oid; |
900 | const char *path = git_path("sharedindex.%s", oid_to_hex(oid)); | |
098aa867 JS |
901 | strbuf_reset(&buf); |
902 | puts(relative_path(path, prefix, &buf)); | |
a76295da NTND |
903 | } |
904 | continue; | |
905 | } | |
ef87cc79 JK |
906 | if (skip_prefix(arg, "--since=", &arg)) { |
907 | show_datestring("--max-age=", arg); | |
c1babb1d LT |
908 | continue; |
909 | } | |
ef87cc79 JK |
910 | if (skip_prefix(arg, "--after=", &arg)) { |
911 | show_datestring("--max-age=", arg); | |
c1babb1d LT |
912 | continue; |
913 | } | |
ef87cc79 JK |
914 | if (skip_prefix(arg, "--before=", &arg)) { |
915 | show_datestring("--min-age=", arg); | |
c1babb1d LT |
916 | continue; |
917 | } | |
ef87cc79 JK |
918 | if (skip_prefix(arg, "--until=", &arg)) { |
919 | show_datestring("--min-age=", arg); | |
c1babb1d LT |
920 | continue; |
921 | } | |
9523a4c2 | 922 | if (show_flag(arg) && verify) |
b1b35969 | 923 | die_no_single_rev(quiet); |
178cb243 LT |
924 | continue; |
925 | } | |
4866ccf0 JH |
926 | |
927 | /* Not a flag argument */ | |
3dd4e732 SB |
928 | if (try_difference(arg)) |
929 | continue; | |
2122f8b9 BS |
930 | if (try_parent_shorthands(arg)) |
931 | continue; | |
dfd1b749 CC |
932 | name = arg; |
933 | type = NORMAL; | |
934 | if (*arg == '^') { | |
935 | name++; | |
936 | type = REVERSED; | |
800644c5 | 937 | } |
3a7a698e NTND |
938 | if (!get_oid_with_context(the_repository, name, |
939 | flags, &oid, &unused)) { | |
dfd1b749 CC |
940 | if (verify) |
941 | revs_count++; | |
942 | else | |
8bc095f7 | 943 | show_rev(type, &oid, name); |
800644c5 LT |
944 | continue; |
945 | } | |
75ecfce3 CC |
946 | if (verify) |
947 | die_no_single_rev(quiet); | |
14185673 JK |
948 | if (has_dashdash) |
949 | die("bad revision '%s'", arg); | |
9ad0a933 | 950 | as_is = 1; |
12b9d327 | 951 | if (!show_file(arg, output_prefix)) |
9ad0a933 | 952 | continue; |
023e37c3 | 953 | verify_filename(prefix, arg, 1); |
023d66ed | 954 | } |
098aa867 | 955 | strbuf_release(&buf); |
dfd1b749 CC |
956 | if (verify) { |
957 | if (revs_count == 1) { | |
8bc095f7 | 958 | show_rev(type, &oid, name); |
dfd1b749 CC |
959 | return 0; |
960 | } else if (revs_count == 0 && show_default()) | |
961 | return 0; | |
b1b35969 | 962 | die_no_single_rev(quiet); |
dfd1b749 CC |
963 | } else |
964 | show_default(); | |
178cb243 LT |
965 | return 0; |
966 | } |