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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 | */ | |
6 | #include "cache.h" | |
a8be83fe | 7 | #include "commit.h" |
960bba0d | 8 | #include "refs.h" |
c1babb1d | 9 | #include "quote.h" |
895f10c3 | 10 | #include "builtin.h" |
21d47835 | 11 | #include "parse-options.h" |
9dc01bf0 JH |
12 | #include "diff.h" |
13 | #include "revision.h" | |
a76295da | 14 | #include "split-index.h" |
a8be83fe | 15 | |
4866ccf0 JH |
16 | #define DO_REVS 1 |
17 | #define DO_NOREV 2 | |
18 | #define DO_FLAGS 4 | |
19 | #define DO_NONFLAGS 8 | |
20 | static int filter = ~0; | |
21 | ||
96f1e58f | 22 | static const char *def; |
023d66ed | 23 | |
042a4ed7 LT |
24 | #define NORMAL 0 |
25 | #define REVERSED 1 | |
26 | static int show_type = NORMAL; | |
a6d97d49 JH |
27 | |
28 | #define SHOW_SYMBOLIC_ASIS 1 | |
29 | #define SHOW_SYMBOLIC_FULL 2 | |
96f1e58f DR |
30 | static int symbolic; |
31 | static int abbrev; | |
a45d3469 BW |
32 | static int abbrev_ref; |
33 | static int abbrev_ref_strict; | |
96f1e58f | 34 | static int output_sq; |
4866ccf0 | 35 | |
f8c87212 | 36 | static int stuck_long; |
9dc01bf0 | 37 | static struct string_list *ref_excludes; |
f8c87212 | 38 | |
921d865e LT |
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[] = { | |
e091eb93 | 47 | "--all", |
4866ccf0 | 48 | "--bisect", |
5a83f3be | 49 | "--dense", |
b09fe971 | 50 | "--branches=", |
a62be77f | 51 | "--branches", |
4866ccf0 | 52 | "--header", |
cc243c3c | 53 | "--ignore-missing", |
921d865e | 54 | "--max-age=", |
4866ccf0 | 55 | "--max-count=", |
4866ccf0 | 56 | "--min-age=", |
5ccfb758 | 57 | "--no-merges", |
ad5aeede MG |
58 | "--min-parents=", |
59 | "--no-min-parents", | |
60 | "--max-parents=", | |
61 | "--no-max-parents", | |
4866ccf0 | 62 | "--objects", |
c6496575 | 63 | "--objects-edge", |
4866ccf0 JH |
64 | "--parents", |
65 | "--pretty", | |
b09fe971 | 66 | "--remotes=", |
a62be77f | 67 | "--remotes", |
d08bae7e | 68 | "--glob=", |
5a83f3be | 69 | "--sparse", |
b09fe971 | 70 | "--tags=", |
a62be77f | 71 | "--tags", |
4866ccf0 | 72 | "--topo-order", |
4c8725f1 | 73 | "--date-order", |
4866ccf0 | 74 | "--unpacked", |
921d865e LT |
75 | NULL |
76 | }; | |
77 | const char **p = rev_args; | |
78 | ||
8233340c EW |
79 | /* accept -<digit>, like traditional "head" */ |
80 | if ((*arg == '-') && isdigit(arg[1])) | |
81 | return 1; | |
82 | ||
921d865e LT |
83 | for (;;) { |
84 | const char *str = *p++; | |
85 | int len; | |
86 | if (!str) | |
87 | return 0; | |
88 | len = strlen(str); | |
4866ccf0 JH |
89 | if (!strcmp(arg, str) || |
90 | (str[len-1] == '=' && !strncmp(arg, str, len))) | |
921d865e LT |
91 | return 1; |
92 | } | |
93 | } | |
94 | ||
4866ccf0 | 95 | /* Output argument as a string, either SQ or normal */ |
5bb2c65a JH |
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); | |
105 | putchar(ch); | |
106 | } | |
107 | putchar(sq); | |
108 | putchar(' '); | |
109 | } | |
110 | else | |
111 | puts(arg); | |
112 | } | |
113 | ||
e00f3790 JS |
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 | ||
4866ccf0 | 122 | /* Output a revision, only if filter allows it */ |
30b96fce | 123 | static void show_rev(int type, const unsigned char *sha1, const char *name) |
023d66ed | 124 | { |
4866ccf0 | 125 | if (!(filter & DO_REVS)) |
023d66ed | 126 | return; |
4866ccf0 | 127 | def = NULL; |
5bb2c65a | 128 | |
a45d3469 BW |
129 | if ((symbolic || abbrev_ref) && name) { |
130 | if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { | |
a6d97d49 JH |
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 */ | |
a45d3469 BW |
145 | if (abbrev_ref) |
146 | full = shorten_unambiguous_ref(full, | |
147 | abbrev_ref_strict); | |
e00f3790 | 148 | show_with_type(type, full); |
a6d97d49 JH |
149 | break; |
150 | default: /* ambiguous */ | |
151 | error("refname '%s' is ambiguous", name); | |
152 | break; | |
153 | } | |
28b35632 | 154 | free(full); |
a6d97d49 | 155 | } else { |
e00f3790 | 156 | show_with_type(type, name); |
a6d97d49 JH |
157 | } |
158 | } | |
d5012508 | 159 | else if (abbrev) |
e00f3790 | 160 | show_with_type(type, find_unique_abbrev(sha1, abbrev)); |
30b96fce | 161 | else |
e00f3790 | 162 | show_with_type(type, sha1_to_hex(sha1)); |
023d66ed LT |
163 | } |
164 | ||
4866ccf0 | 165 | /* Output a flag, only if filter allows it. */ |
16cee38a | 166 | static int show_flag(const char *arg) |
023d66ed | 167 | { |
4866ccf0 | 168 | if (!(filter & DO_FLAGS)) |
9523a4c2 LT |
169 | return 0; |
170 | if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) { | |
0360e99d | 171 | show(arg); |
9523a4c2 LT |
172 | return 1; |
173 | } | |
174 | return 0; | |
023d66ed LT |
175 | } |
176 | ||
dfd1b749 | 177 | static int show_default(void) |
023d66ed | 178 | { |
16cee38a | 179 | const char *s = def; |
023d66ed LT |
180 | |
181 | if (s) { | |
182 | unsigned char sha1[20]; | |
183 | ||
184 | def = NULL; | |
9938af6a | 185 | if (!get_sha1(s, sha1)) { |
30b96fce | 186 | show_rev(NORMAL, sha1, s); |
dfd1b749 | 187 | return 1; |
023d66ed | 188 | } |
023d66ed | 189 | } |
dfd1b749 | 190 | return 0; |
023d66ed LT |
191 | } |
192 | ||
e23b0368 | 193 | static int show_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) |
960bba0d | 194 | { |
9dc01bf0 JH |
195 | if (ref_excluded(ref_excludes, refname)) |
196 | return 0; | |
e23b0368 | 197 | show_rev(NORMAL, oid->hash, refname); |
960bba0d LT |
198 | return 0; |
199 | } | |
200 | ||
e23b0368 | 201 | static int anti_reference(const char *refname, const struct object_id *oid, int flag, void *cb_data) |
ad3f9a71 | 202 | { |
e23b0368 | 203 | show_rev(REVERSED, oid->hash, refname); |
ad3f9a71 LT |
204 | return 0; |
205 | } | |
206 | ||
957d7406 JH |
207 | static int show_abbrev(const unsigned char *sha1, void *cb_data) |
208 | { | |
209 | show_rev(NORMAL, sha1, NULL); | |
210 | return 0; | |
211 | } | |
212 | ||
c1babb1d LT |
213 | static void show_datestring(const char *flag, const char *datestr) |
214 | { | |
c1babb1d | 215 | static char buffer[100]; |
c1babb1d LT |
216 | |
217 | /* date handling requires both flags and revs */ | |
218 | if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) | |
219 | return; | |
3c07b1d1 | 220 | snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr)); |
c1babb1d LT |
221 | show(buffer); |
222 | } | |
223 | ||
12b9d327 | 224 | static int show_file(const char *arg, int output_prefix) |
7a3dd472 | 225 | { |
7b34c2fa | 226 | show_default(); |
9ad0a933 | 227 | if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { |
12b9d327 JK |
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); | |
9ad0a933 LT |
235 | return 1; |
236 | } | |
237 | return 0; | |
7a3dd472 LT |
238 | } |
239 | ||
b7d936b2 | 240 | static int try_difference(const char *arg) |
3dd4e732 SB |
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; | |
003c84f6 | 248 | static const char head_by_default[] = "HEAD"; |
3dd4e732 SB |
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) | |
003c84f6 | 260 | next = head_by_default; |
3dd4e732 | 261 | if (dotdot == arg) |
003c84f6 JH |
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 | ||
c036c4c5 | 274 | if (!get_sha1_committish(this, sha1) && !get_sha1_committish(next, end)) { |
3dd4e732 SB |
275 | show_rev(NORMAL, end, next); |
276 | show_rev(symmetric ? NORMAL : REVERSED, 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); | |
2ce406cc | 282 | exclude = get_merge_bases(a, b); |
3dd4e732 | 283 | while (exclude) { |
e510ab89 | 284 | struct commit *commit = pop_commit(&exclude); |
ed1c9977 | 285 | show_rev(REVERSED, commit->object.oid.hash, NULL); |
3dd4e732 SB |
286 | } |
287 | } | |
62f162f8 | 288 | *dotdot = '.'; |
3dd4e732 SB |
289 | return 1; |
290 | } | |
291 | *dotdot = '.'; | |
292 | return 0; | |
293 | } | |
294 | ||
2122f8b9 BS |
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; | |
8779351d VN |
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 | |
2122f8b9 BS |
325 | return 0; |
326 | ||
327 | *dotdot = 0; | |
62f162f8 JK |
328 | if (get_sha1_committish(arg, sha1)) { |
329 | *dotdot = '^'; | |
2122f8b9 | 330 | return 0; |
62f162f8 | 331 | } |
2122f8b9 | 332 | |
2122f8b9 | 333 | commit = lookup_commit_reference(sha1); |
8779351d VN |
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(NORMAL, sha1, arg); | |
342 | for (parents = commit->parents, parent_number = 1; | |
343 | parents; | |
344 | parents = parents->next, parent_number++) { | |
a2e7b04c JK |
345 | char *name = NULL; |
346 | ||
8779351d VN |
347 | if (exclude_parent && parent_number != exclude_parent) |
348 | continue; | |
349 | ||
a2e7b04c JK |
350 | if (symbolic) |
351 | name = xstrfmt("%s^%d", arg, parent_number); | |
8779351d | 352 | show_rev(include_parents ? NORMAL : REVERSED, |
a2e7b04c JK |
353 | parents->item->object.oid.hash, name); |
354 | free(name); | |
8779351d | 355 | } |
2122f8b9 | 356 | |
62f162f8 | 357 | *dotdot = '^'; |
2122f8b9 BS |
358 | return 1; |
359 | } | |
360 | ||
21d47835 PH |
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); | |
f8c87212 | 366 | else if (o->short_name && (o->long_name == NULL || !stuck_long)) |
21d47835 PH |
367 | strbuf_addf(parsed, " -%c", o->short_name); |
368 | else | |
369 | strbuf_addf(parsed, " --%s", o->long_name); | |
370 | if (arg) { | |
f8c87212 NV |
371 | if (!stuck_long) |
372 | strbuf_addch(parsed, ' '); | |
373 | else if (o->long_name) | |
374 | strbuf_addch(parsed, '='); | |
21d47835 PH |
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)) | |
383 | s++; | |
384 | return s; | |
385 | } | |
386 | ||
387 | static int cmd_parseopt(int argc, const char **argv, const char *prefix) | |
388 | { | |
6e0800ef | 389 | static int keep_dashdash = 0, stop_at_non_option = 0; |
21d47835 | 390 | static char const * const parseopt_usage[] = { |
9c9b4f2f | 391 | N_("git rev-parse --parseopt [<options>] -- [<args>...]"), |
21d47835 PH |
392 | NULL |
393 | }; | |
394 | static struct option parseopt_opts[] = { | |
d5d09d47 | 395 | OPT_BOOL(0, "keep-dashdash", &keep_dashdash, |
2c7c184c | 396 | N_("keep the `--` passed as an arg")), |
d5d09d47 | 397 | OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option, |
2c7c184c NTND |
398 | N_("stop parsing after the " |
399 | "first non-option argument")), | |
f8c87212 NV |
400 | OPT_BOOL(0, "stuck-long", &stuck_long, |
401 | N_("output in stuck long form")), | |
21d47835 PH |
402 | OPT_END(), |
403 | }; | |
2d893dff | 404 | static const char * const flag_chars = "*=?!"; |
21d47835 | 405 | |
f285a2d7 | 406 | struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT; |
21d47835 PH |
407 | const char **usage = NULL; |
408 | struct option *opts = NULL; | |
409 | int onb = 0, osz = 0, unb = 0, usz = 0; | |
410 | ||
21d47835 | 411 | strbuf_addstr(&parsed, "set --"); |
37782920 | 412 | argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage, |
21d47835 PH |
413 | PARSE_OPT_KEEP_DASHDASH); |
414 | if (argc < 1 || strcmp(argv[0], "--")) | |
415 | usage_with_options(parseopt_usage, parseopt_opts); | |
416 | ||
21d47835 PH |
417 | /* get the usage up to the first line with a -- on it */ |
418 | for (;;) { | |
72e37b6a | 419 | if (strbuf_getline(&sb, stdin) == EOF) |
21d47835 PH |
420 | die("premature end of input"); |
421 | ALLOC_GROW(usage, unb + 1, usz); | |
422 | if (!strcmp("--", sb.buf)) { | |
423 | if (unb < 1) | |
424 | die("no usage string given before the `--' separator"); | |
425 | usage[unb] = NULL; | |
426 | break; | |
427 | } | |
428 | usage[unb++] = strbuf_detach(&sb, NULL); | |
429 | } | |
430 | ||
9bab5b60 | 431 | /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ |
72e37b6a | 432 | while (strbuf_getline(&sb, stdin) != EOF) { |
21d47835 | 433 | const char *s; |
2d893dff | 434 | const char *help; |
21d47835 PH |
435 | struct option *o; |
436 | ||
437 | if (!sb.len) | |
438 | continue; | |
439 | ||
440 | ALLOC_GROW(opts, onb + 1, osz); | |
441 | memset(opts + onb, 0, sizeof(opts[onb])); | |
442 | ||
443 | o = &opts[onb++]; | |
2d893dff IB |
444 | help = strchr(sb.buf, ' '); |
445 | if (!help || *sb.buf == ' ') { | |
21d47835 | 446 | o->type = OPTION_GROUP; |
e1033436 | 447 | o->help = xstrdup(skipspaces(sb.buf)); |
21d47835 PH |
448 | continue; |
449 | } | |
450 | ||
451 | o->type = OPTION_CALLBACK; | |
2d893dff | 452 | o->help = xstrdup(skipspaces(help)); |
21d47835 | 453 | o->value = &parsed; |
ff962a3f | 454 | o->flags = PARSE_OPT_NOARG; |
21d47835 | 455 | o->callback = &parseopt_dump; |
9bab5b60 | 456 | |
2d893dff IB |
457 | /* name(s) */ |
458 | s = strpbrk(sb.buf, flag_chars); | |
459 | if (s == NULL) | |
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++) { | |
ff962a3f PH |
474 | case '=': |
475 | o->flags &= ~PARSE_OPT_NOARG; | |
2d893dff | 476 | continue; |
ff962a3f PH |
477 | case '?': |
478 | o->flags &= ~PARSE_OPT_NOARG; | |
479 | o->flags |= PARSE_OPT_OPTARG; | |
2d893dff | 480 | continue; |
ff962a3f PH |
481 | case '!': |
482 | o->flags |= PARSE_OPT_NONEG; | |
2d893dff | 483 | continue; |
ff962a3f PH |
484 | case '*': |
485 | o->flags |= PARSE_OPT_HIDDEN; | |
2d893dff | 486 | continue; |
ff962a3f | 487 | } |
2d893dff IB |
488 | s--; |
489 | break; | |
21d47835 PH |
490 | } |
491 | ||
2d893dff IB |
492 | if (s < help) |
493 | o->argh = xmemdupz(s, help - s); | |
21d47835 PH |
494 | } |
495 | strbuf_release(&sb); | |
496 | ||
497 | /* put an OPT_END() */ | |
498 | ALLOC_GROW(opts, onb + 1, osz); | |
499 | memset(opts + onb, 0, sizeof(opts[onb])); | |
37782920 | 500 | argc = parse_options(argc, argv, prefix, opts, usage, |
29981380 | 501 | (keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0) | |
fcd91f8d | 502 | (stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0) | |
47e9cd28 | 503 | PARSE_OPT_SHELL_EVAL); |
21d47835 | 504 | |
02962d36 | 505 | strbuf_addstr(&parsed, " --"); |
b319ce4c | 506 | sq_quote_argv(&parsed, argv, 0); |
21d47835 PH |
507 | puts(parsed.buf); |
508 | return 0; | |
509 | } | |
510 | ||
50325377 CC |
511 | static int cmd_sq_quote(int argc, const char **argv) |
512 | { | |
513 | struct strbuf buf = STRBUF_INIT; | |
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 | ||
b1b35969 CC |
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 | ||
7006b5be | 531 | static const char builtin_rev_parse_usage[] = |
9c9b4f2f | 532 | N_("git rev-parse --parseopt [<options>] -- [<args>...]\n" |
2c7c184c | 533 | " or: git rev-parse --sq-quote [<arg>...]\n" |
9c9b4f2f | 534 | " or: git rev-parse [<options>] [<arg>...]\n" |
2c7c184c NTND |
535 | "\n" |
536 | "Run \"git rev-parse --parseopt -h\" for more information on the first usage."); | |
7006b5be | 537 | |
a633fca0 | 538 | int cmd_rev_parse(int argc, const char **argv, const char *prefix) |
178cb243 | 539 | { |
dfd1b749 | 540 | int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; |
fc7d47f0 | 541 | int did_repo_setup = 0; |
14185673 | 542 | int has_dashdash = 0; |
12b9d327 | 543 | int output_prefix = 0; |
178cb243 | 544 | unsigned char sha1[20]; |
c41a87dd | 545 | unsigned int flags = 0; |
dfd1b749 | 546 | const char *name = NULL; |
c41a87dd | 547 | struct object_context unused; |
a62be77f | 548 | |
21d47835 PH |
549 | if (argc > 1 && !strcmp("--parseopt", argv[1])) |
550 | return cmd_parseopt(argc - 1, argv + 1, prefix); | |
551 | ||
50325377 CC |
552 | if (argc > 1 && !strcmp("--sq-quote", argv[1])) |
553 | return cmd_sq_quote(argc - 2, argv + 2); | |
554 | ||
7006b5be JN |
555 | if (argc > 1 && !strcmp("-h", argv[1])) |
556 | usage(builtin_rev_parse_usage); | |
557 | ||
14185673 JK |
558 | for (i = 1; i < argc; i++) { |
559 | if (!strcmp(argv[i], "--")) { | |
560 | has_dashdash = 1; | |
561 | break; | |
562 | } | |
563 | } | |
564 | ||
fc7d47f0 JK |
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); | |
569 | return 0; | |
570 | } | |
571 | ||
178cb243 | 572 | for (i = 1; i < argc; i++) { |
16cee38a | 573 | const char *arg = argv[i]; |
fb18a2ed | 574 | |
fc7d47f0 JK |
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); | |
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); | |
596 | did_repo_setup = 1; | |
597 | } | |
598 | ||
557bd833 NTND |
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 | } | |
178cb243 | 606 | if (as_is) { |
12b9d327 | 607 | if (show_file(arg, output_prefix) && as_is < 2) |
023e37c3 | 608 | verify_filename(prefix, arg, 0); |
178cb243 LT |
609 | continue; |
610 | } | |
3af06987 EW |
611 | if (!strcmp(arg,"-n")) { |
612 | if (++i >= argc) | |
613 | die("-n requires an argument"); | |
614 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) { | |
615 | show(arg); | |
616 | show(argv[i]); | |
617 | } | |
618 | continue; | |
619 | } | |
59556548 | 620 | if (starts_with(arg, "-n")) { |
3af06987 EW |
621 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) |
622 | show(arg); | |
623 | continue; | |
624 | } | |
625 | ||
178cb243 LT |
626 | if (*arg == '-') { |
627 | if (!strcmp(arg, "--")) { | |
fb18a2ed | 628 | as_is = 2; |
a08b6505 LT |
629 | /* Pass on the "--" if we show anything but files.. */ |
630 | if (filter & (DO_FLAGS | DO_REVS)) | |
12b9d327 | 631 | show_file(arg, 0); |
4866ccf0 | 632 | continue; |
178cb243 LT |
633 | } |
634 | if (!strcmp(arg, "--default")) { | |
a43219f2 DS |
635 | def = argv[++i]; |
636 | if (!def) | |
637 | die("--default requires an argument"); | |
178cb243 LT |
638 | continue; |
639 | } | |
12b9d327 | 640 | if (!strcmp(arg, "--prefix")) { |
a43219f2 DS |
641 | prefix = argv[++i]; |
642 | if (!prefix) | |
643 | die("--prefix requires an argument"); | |
12b9d327 JK |
644 | startup_info->prefix = prefix; |
645 | output_prefix = 1; | |
12b9d327 JK |
646 | continue; |
647 | } | |
8ebb0184 | 648 | if (!strcmp(arg, "--revs-only")) { |
4866ccf0 | 649 | filter &= ~DO_NOREV; |
8ebb0184 LT |
650 | continue; |
651 | } | |
652 | if (!strcmp(arg, "--no-revs")) { | |
4866ccf0 | 653 | filter &= ~DO_REVS; |
8ebb0184 LT |
654 | continue; |
655 | } | |
f79b65aa | 656 | if (!strcmp(arg, "--flags")) { |
4866ccf0 | 657 | filter &= ~DO_NONFLAGS; |
f79b65aa LT |
658 | continue; |
659 | } | |
660 | if (!strcmp(arg, "--no-flags")) { | |
4866ccf0 | 661 | filter &= ~DO_FLAGS; |
f79b65aa LT |
662 | continue; |
663 | } | |
023d66ed | 664 | if (!strcmp(arg, "--verify")) { |
4866ccf0 JH |
665 | filter &= ~(DO_FLAGS|DO_NOREV); |
666 | verify = 1; | |
023d66ed | 667 | continue; |
921d865e | 668 | } |
b1b35969 CC |
669 | if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { |
670 | quiet = 1; | |
c41a87dd | 671 | flags |= GET_SHA1_QUIETLY; |
b1b35969 CC |
672 | continue; |
673 | } | |
62a604ba | 674 | if (!strcmp(arg, "--short") || |
59556548 | 675 | starts_with(arg, "--short=")) { |
d5012508 JH |
676 | filter &= ~(DO_FLAGS|DO_NOREV); |
677 | verify = 1; | |
678 | abbrev = DEFAULT_ABBREV; | |
7b5b7721 JH |
679 | if (!arg[7]) |
680 | continue; | |
681 | abbrev = strtoul(arg + 8, NULL, 10); | |
1dc4fb84 JH |
682 | if (abbrev < MINIMUM_ABBREV) |
683 | abbrev = MINIMUM_ABBREV; | |
684 | else if (40 <= abbrev) | |
685 | abbrev = 40; | |
d5012508 JH |
686 | continue; |
687 | } | |
5bb2c65a JH |
688 | if (!strcmp(arg, "--sq")) { |
689 | output_sq = 1; | |
690 | continue; | |
691 | } | |
042a4ed7 LT |
692 | if (!strcmp(arg, "--not")) { |
693 | show_type ^= REVERSED; | |
694 | continue; | |
695 | } | |
30b96fce | 696 | if (!strcmp(arg, "--symbolic")) { |
a6d97d49 JH |
697 | symbolic = SHOW_SYMBOLIC_ASIS; |
698 | continue; | |
699 | } | |
700 | if (!strcmp(arg, "--symbolic-full-name")) { | |
701 | symbolic = SHOW_SYMBOLIC_FULL; | |
30b96fce JH |
702 | continue; |
703 | } | |
59556548 | 704 | if (starts_with(arg, "--abbrev-ref") && |
a45d3469 BW |
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 | } | |
960bba0d | 718 | if (!strcmp(arg, "--all")) { |
e23b0368 | 719 | for_each_ref(show_reference, NULL); |
960bba0d LT |
720 | continue; |
721 | } | |
59556548 | 722 | if (starts_with(arg, "--disambiguate=")) { |
957d7406 JH |
723 | for_each_abbrev(arg + 15, show_abbrev, NULL); |
724 | continue; | |
725 | } | |
ad3f9a71 | 726 | if (!strcmp(arg, "--bisect")) { |
e23b0368 MH |
727 | for_each_ref_in("refs/bisect/bad", show_reference, NULL); |
728 | for_each_ref_in("refs/bisect/good", anti_reference, NULL); | |
ad3f9a71 LT |
729 | continue; |
730 | } | |
59556548 | 731 | if (starts_with(arg, "--branches=")) { |
e23b0368 MH |
732 | for_each_glob_ref_in(show_reference, arg + 11, |
733 | "refs/heads/", NULL); | |
9dc01bf0 | 734 | clear_ref_exclusion(&ref_excludes); |
b09fe971 IL |
735 | continue; |
736 | } | |
a62be77f | 737 | if (!strcmp(arg, "--branches")) { |
e23b0368 | 738 | for_each_branch_ref(show_reference, NULL); |
9dc01bf0 | 739 | clear_ref_exclusion(&ref_excludes); |
a62be77f SE |
740 | continue; |
741 | } | |
59556548 | 742 | if (starts_with(arg, "--tags=")) { |
e23b0368 MH |
743 | for_each_glob_ref_in(show_reference, arg + 7, |
744 | "refs/tags/", NULL); | |
9dc01bf0 | 745 | clear_ref_exclusion(&ref_excludes); |
b09fe971 IL |
746 | continue; |
747 | } | |
a62be77f | 748 | if (!strcmp(arg, "--tags")) { |
e23b0368 | 749 | for_each_tag_ref(show_reference, NULL); |
9dc01bf0 | 750 | clear_ref_exclusion(&ref_excludes); |
a62be77f SE |
751 | continue; |
752 | } | |
59556548 | 753 | if (starts_with(arg, "--glob=")) { |
e23b0368 | 754 | for_each_glob_ref(show_reference, arg + 7, NULL); |
9dc01bf0 | 755 | clear_ref_exclusion(&ref_excludes); |
d08bae7e IL |
756 | continue; |
757 | } | |
59556548 | 758 | if (starts_with(arg, "--remotes=")) { |
e23b0368 MH |
759 | for_each_glob_ref_in(show_reference, arg + 10, |
760 | "refs/remotes/", NULL); | |
9dc01bf0 | 761 | clear_ref_exclusion(&ref_excludes); |
b09fe971 IL |
762 | continue; |
763 | } | |
a62be77f | 764 | if (!strcmp(arg, "--remotes")) { |
e23b0368 | 765 | for_each_remote_ref(show_reference, NULL); |
9dc01bf0 JH |
766 | clear_ref_exclusion(&ref_excludes); |
767 | continue; | |
768 | } | |
ad704485 | 769 | if (starts_with(arg, "--exclude=")) { |
9dc01bf0 | 770 | add_ref_exclusion(&ref_excludes, arg + 10); |
a62be77f SE |
771 | continue; |
772 | } | |
7cceca5c SD |
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 | } | |
d288a700 | 779 | if (!strcmp(arg, "--show-prefix")) { |
4866ccf0 JH |
780 | if (prefix) |
781 | puts(prefix); | |
658219f1 RL |
782 | else |
783 | putchar('\n'); | |
d288a700 LT |
784 | continue; |
785 | } | |
5f94c730 JH |
786 | if (!strcmp(arg, "--show-cdup")) { |
787 | const char *pfx = prefix; | |
e90fdc39 JS |
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 | } | |
5f94c730 JH |
795 | while (pfx) { |
796 | pfx = strchr(pfx, '/'); | |
797 | if (pfx) { | |
798 | pfx++; | |
799 | printf("../"); | |
800 | } | |
801 | } | |
802 | putchar('\n'); | |
803 | continue; | |
804 | } | |
a8783eeb LT |
805 | if (!strcmp(arg, "--git-dir")) { |
806 | const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); | |
56b9f6e7 | 807 | char *cwd; |
d06f15d9 | 808 | int len; |
a8783eeb LT |
809 | if (gitdir) { |
810 | puts(gitdir); | |
811 | continue; | |
812 | } | |
813 | if (!prefix) { | |
814 | puts(".git"); | |
815 | continue; | |
816 | } | |
56b9f6e7 | 817 | cwd = xgetcwd(); |
d06f15d9 NTND |
818 | len = strlen(cwd); |
819 | printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); | |
56b9f6e7 | 820 | free(cwd); |
a8783eeb LT |
821 | continue; |
822 | } | |
31e26ebc | 823 | if (!strcmp(arg, "--git-common-dir")) { |
17f1365d NTND |
824 | const char *pfx = prefix ? prefix : ""; |
825 | puts(prefix_filename(pfx, strlen(pfx), get_git_common_dir())); | |
31e26ebc NTND |
826 | continue; |
827 | } | |
6d9ba67b JS |
828 | if (!strcmp(arg, "--is-inside-git-dir")) { |
829 | printf("%s\n", is_inside_git_dir() ? "true" | |
830 | : "false"); | |
831 | continue; | |
832 | } | |
892c41b9 ML |
833 | if (!strcmp(arg, "--is-inside-work-tree")) { |
834 | printf("%s\n", is_inside_work_tree() ? "true" | |
835 | : "false"); | |
836 | continue; | |
837 | } | |
493c774e ML |
838 | if (!strcmp(arg, "--is-bare-repository")) { |
839 | printf("%s\n", is_bare_repository() ? "true" | |
840 | : "false"); | |
841 | continue; | |
842 | } | |
a76295da NTND |
843 | if (!strcmp(arg, "--shared-index-path")) { |
844 | if (read_cache() < 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 | } | |
59556548 | 852 | if (starts_with(arg, "--since=")) { |
c1babb1d LT |
853 | show_datestring("--max-age=", arg+8); |
854 | continue; | |
855 | } | |
59556548 | 856 | if (starts_with(arg, "--after=")) { |
c1babb1d LT |
857 | show_datestring("--max-age=", arg+8); |
858 | continue; | |
859 | } | |
59556548 | 860 | if (starts_with(arg, "--before=")) { |
c1babb1d LT |
861 | show_datestring("--min-age=", arg+9); |
862 | continue; | |
863 | } | |
59556548 | 864 | if (starts_with(arg, "--until=")) { |
c1babb1d LT |
865 | show_datestring("--min-age=", arg+8); |
866 | continue; | |
867 | } | |
9523a4c2 | 868 | if (show_flag(arg) && verify) |
b1b35969 | 869 | die_no_single_rev(quiet); |
178cb243 LT |
870 | continue; |
871 | } | |
4866ccf0 JH |
872 | |
873 | /* Not a flag argument */ | |
3dd4e732 SB |
874 | if (try_difference(arg)) |
875 | continue; | |
2122f8b9 BS |
876 | if (try_parent_shorthands(arg)) |
877 | continue; | |
dfd1b749 CC |
878 | name = arg; |
879 | type = NORMAL; | |
880 | if (*arg == '^') { | |
881 | name++; | |
882 | type = REVERSED; | |
800644c5 | 883 | } |
c41a87dd | 884 | if (!get_sha1_with_context(name, flags, sha1, &unused)) { |
dfd1b749 CC |
885 | if (verify) |
886 | revs_count++; | |
887 | else | |
888 | show_rev(type, sha1, name); | |
800644c5 LT |
889 | continue; |
890 | } | |
75ecfce3 CC |
891 | if (verify) |
892 | die_no_single_rev(quiet); | |
14185673 JK |
893 | if (has_dashdash) |
894 | die("bad revision '%s'", arg); | |
9ad0a933 | 895 | as_is = 1; |
12b9d327 | 896 | if (!show_file(arg, output_prefix)) |
9ad0a933 | 897 | continue; |
023e37c3 | 898 | verify_filename(prefix, arg, 1); |
023d66ed | 899 | } |
dfd1b749 CC |
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; | |
b1b35969 | 906 | die_no_single_rev(quiet); |
dfd1b749 CC |
907 | } else |
908 | show_default(); | |
178cb243 LT |
909 | return 0; |
910 | } |