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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" |
a8be83fe | 12 | |
4866ccf0 JH |
13 | #define DO_REVS 1 |
14 | #define DO_NOREV 2 | |
15 | #define DO_FLAGS 4 | |
16 | #define DO_NONFLAGS 8 | |
17 | static int filter = ~0; | |
18 | ||
96f1e58f | 19 | static const char *def; |
023d66ed | 20 | |
042a4ed7 LT |
21 | #define NORMAL 0 |
22 | #define REVERSED 1 | |
23 | static int show_type = NORMAL; | |
a6d97d49 JH |
24 | |
25 | #define SHOW_SYMBOLIC_ASIS 1 | |
26 | #define SHOW_SYMBOLIC_FULL 2 | |
96f1e58f DR |
27 | static int symbolic; |
28 | static int abbrev; | |
a45d3469 BW |
29 | static int abbrev_ref; |
30 | static int abbrev_ref_strict; | |
96f1e58f | 31 | static int output_sq; |
4866ccf0 | 32 | |
921d865e LT |
33 | /* |
34 | * Some arguments are relevant "revision" arguments, | |
35 | * others are about output format or other details. | |
36 | * This sorts it all out. | |
37 | */ | |
38 | static int is_rev_argument(const char *arg) | |
39 | { | |
40 | static const char *rev_args[] = { | |
e091eb93 | 41 | "--all", |
4866ccf0 | 42 | "--bisect", |
5a83f3be | 43 | "--dense", |
a62be77f | 44 | "--branches", |
4866ccf0 | 45 | "--header", |
921d865e | 46 | "--max-age=", |
4866ccf0 | 47 | "--max-count=", |
4866ccf0 | 48 | "--min-age=", |
5ccfb758 | 49 | "--no-merges", |
4866ccf0 | 50 | "--objects", |
c6496575 | 51 | "--objects-edge", |
4866ccf0 JH |
52 | "--parents", |
53 | "--pretty", | |
a62be77f | 54 | "--remotes", |
5a83f3be | 55 | "--sparse", |
a62be77f | 56 | "--tags", |
4866ccf0 | 57 | "--topo-order", |
4c8725f1 | 58 | "--date-order", |
4866ccf0 | 59 | "--unpacked", |
921d865e LT |
60 | NULL |
61 | }; | |
62 | const char **p = rev_args; | |
63 | ||
8233340c EW |
64 | /* accept -<digit>, like traditional "head" */ |
65 | if ((*arg == '-') && isdigit(arg[1])) | |
66 | return 1; | |
67 | ||
921d865e LT |
68 | for (;;) { |
69 | const char *str = *p++; | |
70 | int len; | |
71 | if (!str) | |
72 | return 0; | |
73 | len = strlen(str); | |
4866ccf0 JH |
74 | if (!strcmp(arg, str) || |
75 | (str[len-1] == '=' && !strncmp(arg, str, len))) | |
921d865e LT |
76 | return 1; |
77 | } | |
78 | } | |
79 | ||
4866ccf0 | 80 | /* Output argument as a string, either SQ or normal */ |
5bb2c65a JH |
81 | static void show(const char *arg) |
82 | { | |
83 | if (output_sq) { | |
84 | int sq = '\'', ch; | |
85 | ||
86 | putchar(sq); | |
87 | while ((ch = *arg++)) { | |
88 | if (ch == sq) | |
89 | fputs("'\\'", stdout); | |
90 | putchar(ch); | |
91 | } | |
92 | putchar(sq); | |
93 | putchar(' '); | |
94 | } | |
95 | else | |
96 | puts(arg); | |
97 | } | |
98 | ||
e00f3790 JS |
99 | /* Like show(), but with a negation prefix according to type */ |
100 | static void show_with_type(int type, const char *arg) | |
101 | { | |
102 | if (type != show_type) | |
103 | putchar('^'); | |
104 | show(arg); | |
105 | } | |
106 | ||
4866ccf0 | 107 | /* Output a revision, only if filter allows it */ |
30b96fce | 108 | static void show_rev(int type, const unsigned char *sha1, const char *name) |
023d66ed | 109 | { |
4866ccf0 | 110 | if (!(filter & DO_REVS)) |
023d66ed | 111 | return; |
4866ccf0 | 112 | def = NULL; |
5bb2c65a | 113 | |
a45d3469 BW |
114 | if ((symbolic || abbrev_ref) && name) { |
115 | if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { | |
a6d97d49 JH |
116 | unsigned char discard[20]; |
117 | char *full; | |
118 | ||
119 | switch (dwim_ref(name, strlen(name), discard, &full)) { | |
120 | case 0: | |
121 | /* | |
122 | * Not found -- not a ref. We could | |
123 | * emit "name" here, but symbolic-full | |
124 | * users are interested in finding the | |
125 | * refs spelled in full, and they would | |
126 | * need to filter non-refs if we did so. | |
127 | */ | |
128 | break; | |
129 | case 1: /* happy */ | |
a45d3469 BW |
130 | if (abbrev_ref) |
131 | full = shorten_unambiguous_ref(full, | |
132 | abbrev_ref_strict); | |
e00f3790 | 133 | show_with_type(type, full); |
a6d97d49 JH |
134 | break; |
135 | default: /* ambiguous */ | |
136 | error("refname '%s' is ambiguous", name); | |
137 | break; | |
138 | } | |
139 | } else { | |
e00f3790 | 140 | show_with_type(type, name); |
a6d97d49 JH |
141 | } |
142 | } | |
d5012508 | 143 | else if (abbrev) |
e00f3790 | 144 | show_with_type(type, find_unique_abbrev(sha1, abbrev)); |
30b96fce | 145 | else |
e00f3790 | 146 | show_with_type(type, sha1_to_hex(sha1)); |
023d66ed LT |
147 | } |
148 | ||
4866ccf0 | 149 | /* Output a flag, only if filter allows it. */ |
16cee38a | 150 | static int show_flag(const char *arg) |
023d66ed | 151 | { |
4866ccf0 | 152 | if (!(filter & DO_FLAGS)) |
9523a4c2 LT |
153 | return 0; |
154 | if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) { | |
0360e99d | 155 | show(arg); |
9523a4c2 LT |
156 | return 1; |
157 | } | |
158 | return 0; | |
023d66ed LT |
159 | } |
160 | ||
dfd1b749 | 161 | static int show_default(void) |
023d66ed | 162 | { |
16cee38a | 163 | const char *s = def; |
023d66ed LT |
164 | |
165 | if (s) { | |
166 | unsigned char sha1[20]; | |
167 | ||
168 | def = NULL; | |
9938af6a | 169 | if (!get_sha1(s, sha1)) { |
30b96fce | 170 | show_rev(NORMAL, sha1, s); |
dfd1b749 | 171 | return 1; |
023d66ed | 172 | } |
023d66ed | 173 | } |
dfd1b749 | 174 | return 0; |
023d66ed LT |
175 | } |
176 | ||
8da19775 | 177 | static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
960bba0d | 178 | { |
30b96fce | 179 | show_rev(NORMAL, sha1, refname); |
960bba0d LT |
180 | return 0; |
181 | } | |
182 | ||
c1babb1d LT |
183 | static void show_datestring(const char *flag, const char *datestr) |
184 | { | |
c1babb1d | 185 | static char buffer[100]; |
c1babb1d LT |
186 | |
187 | /* date handling requires both flags and revs */ | |
188 | if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) | |
189 | return; | |
3c07b1d1 | 190 | snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr)); |
c1babb1d LT |
191 | show(buffer); |
192 | } | |
193 | ||
9ad0a933 | 194 | static int show_file(const char *arg) |
7a3dd472 | 195 | { |
7b34c2fa | 196 | show_default(); |
9ad0a933 | 197 | if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { |
7a3dd472 | 198 | show(arg); |
9ad0a933 LT |
199 | return 1; |
200 | } | |
201 | return 0; | |
7a3dd472 LT |
202 | } |
203 | ||
b7d936b2 | 204 | static int try_difference(const char *arg) |
3dd4e732 SB |
205 | { |
206 | char *dotdot; | |
207 | unsigned char sha1[20]; | |
208 | unsigned char end[20]; | |
209 | const char *next; | |
210 | const char *this; | |
211 | int symmetric; | |
212 | ||
213 | if (!(dotdot = strstr(arg, ".."))) | |
214 | return 0; | |
215 | next = dotdot + 2; | |
216 | this = arg; | |
217 | symmetric = (*next == '.'); | |
218 | ||
219 | *dotdot = 0; | |
220 | next += symmetric; | |
221 | ||
222 | if (!*next) | |
223 | next = "HEAD"; | |
224 | if (dotdot == arg) | |
225 | this = "HEAD"; | |
226 | if (!get_sha1(this, sha1) && !get_sha1(next, end)) { | |
227 | show_rev(NORMAL, end, next); | |
228 | show_rev(symmetric ? NORMAL : REVERSED, sha1, this); | |
229 | if (symmetric) { | |
230 | struct commit_list *exclude; | |
231 | struct commit *a, *b; | |
232 | a = lookup_commit_reference(sha1); | |
233 | b = lookup_commit_reference(end); | |
234 | exclude = get_merge_bases(a, b, 1); | |
235 | while (exclude) { | |
236 | struct commit_list *n = exclude->next; | |
237 | show_rev(REVERSED, | |
238 | exclude->item->object.sha1,NULL); | |
239 | free(exclude); | |
240 | exclude = n; | |
241 | } | |
242 | } | |
243 | return 1; | |
244 | } | |
245 | *dotdot = '.'; | |
246 | return 0; | |
247 | } | |
248 | ||
2122f8b9 BS |
249 | static int try_parent_shorthands(const char *arg) |
250 | { | |
251 | char *dotdot; | |
252 | unsigned char sha1[20]; | |
253 | struct commit *commit; | |
254 | struct commit_list *parents; | |
255 | int parents_only; | |
256 | ||
257 | if ((dotdot = strstr(arg, "^!"))) | |
258 | parents_only = 0; | |
259 | else if ((dotdot = strstr(arg, "^@"))) | |
260 | parents_only = 1; | |
261 | ||
262 | if (!dotdot || dotdot[2]) | |
263 | return 0; | |
264 | ||
265 | *dotdot = 0; | |
266 | if (get_sha1(arg, sha1)) | |
267 | return 0; | |
268 | ||
269 | if (!parents_only) | |
270 | show_rev(NORMAL, sha1, arg); | |
271 | commit = lookup_commit_reference(sha1); | |
272 | for (parents = commit->parents; parents; parents = parents->next) | |
273 | show_rev(parents_only ? NORMAL : REVERSED, | |
274 | parents->item->object.sha1, arg); | |
275 | ||
276 | return 1; | |
277 | } | |
278 | ||
21d47835 PH |
279 | static int parseopt_dump(const struct option *o, const char *arg, int unset) |
280 | { | |
281 | struct strbuf *parsed = o->value; | |
282 | if (unset) | |
283 | strbuf_addf(parsed, " --no-%s", o->long_name); | |
284 | else if (o->short_name) | |
285 | strbuf_addf(parsed, " -%c", o->short_name); | |
286 | else | |
287 | strbuf_addf(parsed, " --%s", o->long_name); | |
288 | if (arg) { | |
289 | strbuf_addch(parsed, ' '); | |
290 | sq_quote_buf(parsed, arg); | |
291 | } | |
292 | return 0; | |
293 | } | |
294 | ||
295 | static const char *skipspaces(const char *s) | |
296 | { | |
297 | while (isspace(*s)) | |
298 | s++; | |
299 | return s; | |
300 | } | |
301 | ||
302 | static int cmd_parseopt(int argc, const char **argv, const char *prefix) | |
303 | { | |
304 | static int keep_dashdash = 0; | |
305 | static char const * const parseopt_usage[] = { | |
1b1dd23f | 306 | "git rev-parse --parseopt [options] -- [<args>...]", |
21d47835 PH |
307 | NULL |
308 | }; | |
309 | static struct option parseopt_opts[] = { | |
310 | OPT_BOOLEAN(0, "keep-dashdash", &keep_dashdash, | |
311 | "keep the `--` passed as an arg"), | |
312 | OPT_END(), | |
313 | }; | |
314 | ||
f285a2d7 | 315 | struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT; |
21d47835 PH |
316 | const char **usage = NULL; |
317 | struct option *opts = NULL; | |
318 | int onb = 0, osz = 0, unb = 0, usz = 0; | |
319 | ||
21d47835 | 320 | strbuf_addstr(&parsed, "set --"); |
37782920 | 321 | argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage, |
21d47835 PH |
322 | PARSE_OPT_KEEP_DASHDASH); |
323 | if (argc < 1 || strcmp(argv[0], "--")) | |
324 | usage_with_options(parseopt_usage, parseopt_opts); | |
325 | ||
21d47835 PH |
326 | /* get the usage up to the first line with a -- on it */ |
327 | for (;;) { | |
328 | if (strbuf_getline(&sb, stdin, '\n') == EOF) | |
329 | die("premature end of input"); | |
330 | ALLOC_GROW(usage, unb + 1, usz); | |
331 | if (!strcmp("--", sb.buf)) { | |
332 | if (unb < 1) | |
333 | die("no usage string given before the `--' separator"); | |
334 | usage[unb] = NULL; | |
335 | break; | |
336 | } | |
337 | usage[unb++] = strbuf_detach(&sb, NULL); | |
338 | } | |
339 | ||
340 | /* parse: (<short>|<short>,<long>|<long>)[=?]? SP+ <help> */ | |
341 | while (strbuf_getline(&sb, stdin, '\n') != EOF) { | |
342 | const char *s; | |
343 | struct option *o; | |
344 | ||
345 | if (!sb.len) | |
346 | continue; | |
347 | ||
348 | ALLOC_GROW(opts, onb + 1, osz); | |
349 | memset(opts + onb, 0, sizeof(opts[onb])); | |
350 | ||
351 | o = &opts[onb++]; | |
352 | s = strchr(sb.buf, ' '); | |
353 | if (!s || *sb.buf == ' ') { | |
354 | o->type = OPTION_GROUP; | |
e1033436 | 355 | o->help = xstrdup(skipspaces(sb.buf)); |
21d47835 PH |
356 | continue; |
357 | } | |
358 | ||
359 | o->type = OPTION_CALLBACK; | |
360 | o->help = xstrdup(skipspaces(s)); | |
361 | o->value = &parsed; | |
ff962a3f | 362 | o->flags = PARSE_OPT_NOARG; |
21d47835 | 363 | o->callback = &parseopt_dump; |
ff962a3f PH |
364 | while (s > sb.buf && strchr("*=?!", s[-1])) { |
365 | switch (*--s) { | |
366 | case '=': | |
367 | o->flags &= ~PARSE_OPT_NOARG; | |
368 | break; | |
369 | case '?': | |
370 | o->flags &= ~PARSE_OPT_NOARG; | |
371 | o->flags |= PARSE_OPT_OPTARG; | |
372 | break; | |
373 | case '!': | |
374 | o->flags |= PARSE_OPT_NONEG; | |
375 | break; | |
376 | case '*': | |
377 | o->flags |= PARSE_OPT_HIDDEN; | |
378 | break; | |
379 | } | |
21d47835 PH |
380 | } |
381 | ||
382 | if (s - sb.buf == 1) /* short option only */ | |
383 | o->short_name = *sb.buf; | |
384 | else if (sb.buf[1] != ',') /* long option only */ | |
385 | o->long_name = xmemdupz(sb.buf, s - sb.buf); | |
386 | else { | |
387 | o->short_name = *sb.buf; | |
388 | o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); | |
389 | } | |
390 | } | |
391 | strbuf_release(&sb); | |
392 | ||
393 | /* put an OPT_END() */ | |
394 | ALLOC_GROW(opts, onb + 1, osz); | |
395 | memset(opts + onb, 0, sizeof(opts[onb])); | |
37782920 | 396 | argc = parse_options(argc, argv, prefix, opts, usage, |
21d47835 PH |
397 | keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0); |
398 | ||
399 | strbuf_addf(&parsed, " --"); | |
b319ce4c | 400 | sq_quote_argv(&parsed, argv, 0); |
21d47835 PH |
401 | puts(parsed.buf); |
402 | return 0; | |
403 | } | |
404 | ||
50325377 CC |
405 | static int cmd_sq_quote(int argc, const char **argv) |
406 | { | |
407 | struct strbuf buf = STRBUF_INIT; | |
408 | ||
409 | if (argc) | |
410 | sq_quote_argv(&buf, argv, 0); | |
411 | printf("%s\n", buf.buf); | |
412 | strbuf_release(&buf); | |
413 | ||
414 | return 0; | |
415 | } | |
416 | ||
b1b35969 CC |
417 | static void die_no_single_rev(int quiet) |
418 | { | |
419 | if (quiet) | |
420 | exit(1); | |
421 | else | |
422 | die("Needed a single revision"); | |
423 | } | |
424 | ||
a633fca0 | 425 | int cmd_rev_parse(int argc, const char **argv, const char *prefix) |
178cb243 | 426 | { |
dfd1b749 | 427 | int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; |
178cb243 | 428 | unsigned char sha1[20]; |
dfd1b749 | 429 | const char *name = NULL; |
a62be77f | 430 | |
21d47835 PH |
431 | if (argc > 1 && !strcmp("--parseopt", argv[1])) |
432 | return cmd_parseopt(argc - 1, argv + 1, prefix); | |
433 | ||
50325377 CC |
434 | if (argc > 1 && !strcmp("--sq-quote", argv[1])) |
435 | return cmd_sq_quote(argc - 2, argv + 2); | |
436 | ||
5410a02a | 437 | prefix = setup_git_directory(); |
ef90d6d4 | 438 | git_config(git_default_config, NULL); |
178cb243 | 439 | for (i = 1; i < argc; i++) { |
16cee38a | 440 | const char *arg = argv[i]; |
fb18a2ed | 441 | |
178cb243 | 442 | if (as_is) { |
fb18a2ed | 443 | if (show_file(arg) && as_is < 2) |
e23d0b4a | 444 | verify_filename(prefix, arg); |
178cb243 LT |
445 | continue; |
446 | } | |
3af06987 EW |
447 | if (!strcmp(arg,"-n")) { |
448 | if (++i >= argc) | |
449 | die("-n requires an argument"); | |
450 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) { | |
451 | show(arg); | |
452 | show(argv[i]); | |
453 | } | |
454 | continue; | |
455 | } | |
1968d77d | 456 | if (!prefixcmp(arg, "-n")) { |
3af06987 EW |
457 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) |
458 | show(arg); | |
459 | continue; | |
460 | } | |
461 | ||
178cb243 LT |
462 | if (*arg == '-') { |
463 | if (!strcmp(arg, "--")) { | |
fb18a2ed | 464 | as_is = 2; |
a08b6505 LT |
465 | /* Pass on the "--" if we show anything but files.. */ |
466 | if (filter & (DO_FLAGS | DO_REVS)) | |
467 | show_file(arg); | |
4866ccf0 | 468 | continue; |
178cb243 LT |
469 | } |
470 | if (!strcmp(arg, "--default")) { | |
178cb243 LT |
471 | def = argv[i+1]; |
472 | i++; | |
473 | continue; | |
474 | } | |
8ebb0184 | 475 | if (!strcmp(arg, "--revs-only")) { |
4866ccf0 | 476 | filter &= ~DO_NOREV; |
8ebb0184 LT |
477 | continue; |
478 | } | |
479 | if (!strcmp(arg, "--no-revs")) { | |
4866ccf0 | 480 | filter &= ~DO_REVS; |
8ebb0184 LT |
481 | continue; |
482 | } | |
f79b65aa | 483 | if (!strcmp(arg, "--flags")) { |
4866ccf0 | 484 | filter &= ~DO_NONFLAGS; |
f79b65aa LT |
485 | continue; |
486 | } | |
487 | if (!strcmp(arg, "--no-flags")) { | |
4866ccf0 | 488 | filter &= ~DO_FLAGS; |
f79b65aa LT |
489 | continue; |
490 | } | |
023d66ed | 491 | if (!strcmp(arg, "--verify")) { |
4866ccf0 JH |
492 | filter &= ~(DO_FLAGS|DO_NOREV); |
493 | verify = 1; | |
023d66ed | 494 | continue; |
921d865e | 495 | } |
b1b35969 CC |
496 | if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { |
497 | quiet = 1; | |
498 | continue; | |
499 | } | |
62a604ba | 500 | if (!strcmp(arg, "--short") || |
cc44c765 | 501 | !prefixcmp(arg, "--short=")) { |
d5012508 JH |
502 | filter &= ~(DO_FLAGS|DO_NOREV); |
503 | verify = 1; | |
504 | abbrev = DEFAULT_ABBREV; | |
44de0da4 JF |
505 | if (arg[7] == '=') |
506 | abbrev = strtoul(arg + 8, NULL, 10); | |
1dc4fb84 JH |
507 | if (abbrev < MINIMUM_ABBREV) |
508 | abbrev = MINIMUM_ABBREV; | |
509 | else if (40 <= abbrev) | |
510 | abbrev = 40; | |
d5012508 JH |
511 | continue; |
512 | } | |
5bb2c65a JH |
513 | if (!strcmp(arg, "--sq")) { |
514 | output_sq = 1; | |
515 | continue; | |
516 | } | |
042a4ed7 LT |
517 | if (!strcmp(arg, "--not")) { |
518 | show_type ^= REVERSED; | |
519 | continue; | |
520 | } | |
30b96fce | 521 | if (!strcmp(arg, "--symbolic")) { |
a6d97d49 JH |
522 | symbolic = SHOW_SYMBOLIC_ASIS; |
523 | continue; | |
524 | } | |
525 | if (!strcmp(arg, "--symbolic-full-name")) { | |
526 | symbolic = SHOW_SYMBOLIC_FULL; | |
30b96fce JH |
527 | continue; |
528 | } | |
a45d3469 BW |
529 | if (!prefixcmp(arg, "--abbrev-ref") && |
530 | (!arg[12] || arg[12] == '=')) { | |
531 | abbrev_ref = 1; | |
532 | abbrev_ref_strict = warn_ambiguous_refs; | |
533 | if (arg[12] == '=') { | |
534 | if (!strcmp(arg + 13, "strict")) | |
535 | abbrev_ref_strict = 1; | |
536 | else if (!strcmp(arg + 13, "loose")) | |
537 | abbrev_ref_strict = 0; | |
538 | else | |
539 | die("unknown mode for %s", arg); | |
540 | } | |
541 | continue; | |
542 | } | |
960bba0d | 543 | if (!strcmp(arg, "--all")) { |
cb5d709f | 544 | for_each_ref(show_reference, NULL); |
960bba0d LT |
545 | continue; |
546 | } | |
a62be77f | 547 | if (!strcmp(arg, "--branches")) { |
cb5d709f | 548 | for_each_branch_ref(show_reference, NULL); |
a62be77f SE |
549 | continue; |
550 | } | |
551 | if (!strcmp(arg, "--tags")) { | |
cb5d709f | 552 | for_each_tag_ref(show_reference, NULL); |
a62be77f SE |
553 | continue; |
554 | } | |
555 | if (!strcmp(arg, "--remotes")) { | |
cb5d709f | 556 | for_each_remote_ref(show_reference, NULL); |
a62be77f SE |
557 | continue; |
558 | } | |
d288a700 | 559 | if (!strcmp(arg, "--show-prefix")) { |
4866ccf0 JH |
560 | if (prefix) |
561 | puts(prefix); | |
d288a700 LT |
562 | continue; |
563 | } | |
5f94c730 JH |
564 | if (!strcmp(arg, "--show-cdup")) { |
565 | const char *pfx = prefix; | |
e90fdc39 JS |
566 | if (!is_inside_work_tree()) { |
567 | const char *work_tree = | |
568 | get_git_work_tree(); | |
569 | if (work_tree) | |
570 | printf("%s\n", work_tree); | |
571 | continue; | |
572 | } | |
5f94c730 JH |
573 | while (pfx) { |
574 | pfx = strchr(pfx, '/'); | |
575 | if (pfx) { | |
576 | pfx++; | |
577 | printf("../"); | |
578 | } | |
579 | } | |
580 | putchar('\n'); | |
581 | continue; | |
582 | } | |
a8783eeb LT |
583 | if (!strcmp(arg, "--git-dir")) { |
584 | const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); | |
585 | static char cwd[PATH_MAX]; | |
586 | if (gitdir) { | |
587 | puts(gitdir); | |
588 | continue; | |
589 | } | |
590 | if (!prefix) { | |
591 | puts(".git"); | |
592 | continue; | |
593 | } | |
594 | if (!getcwd(cwd, PATH_MAX)) | |
595 | die("unable to get current working directory"); | |
596 | printf("%s/.git\n", cwd); | |
597 | continue; | |
598 | } | |
6d9ba67b JS |
599 | if (!strcmp(arg, "--is-inside-git-dir")) { |
600 | printf("%s\n", is_inside_git_dir() ? "true" | |
601 | : "false"); | |
602 | continue; | |
603 | } | |
892c41b9 ML |
604 | if (!strcmp(arg, "--is-inside-work-tree")) { |
605 | printf("%s\n", is_inside_work_tree() ? "true" | |
606 | : "false"); | |
607 | continue; | |
608 | } | |
493c774e ML |
609 | if (!strcmp(arg, "--is-bare-repository")) { |
610 | printf("%s\n", is_bare_repository() ? "true" | |
611 | : "false"); | |
612 | continue; | |
613 | } | |
cc44c765 | 614 | if (!prefixcmp(arg, "--since=")) { |
c1babb1d LT |
615 | show_datestring("--max-age=", arg+8); |
616 | continue; | |
617 | } | |
cc44c765 | 618 | if (!prefixcmp(arg, "--after=")) { |
c1babb1d LT |
619 | show_datestring("--max-age=", arg+8); |
620 | continue; | |
621 | } | |
cc44c765 | 622 | if (!prefixcmp(arg, "--before=")) { |
c1babb1d LT |
623 | show_datestring("--min-age=", arg+9); |
624 | continue; | |
625 | } | |
cc44c765 | 626 | if (!prefixcmp(arg, "--until=")) { |
c1babb1d LT |
627 | show_datestring("--min-age=", arg+8); |
628 | continue; | |
629 | } | |
9523a4c2 | 630 | if (show_flag(arg) && verify) |
b1b35969 | 631 | die_no_single_rev(quiet); |
178cb243 LT |
632 | continue; |
633 | } | |
4866ccf0 JH |
634 | |
635 | /* Not a flag argument */ | |
3dd4e732 SB |
636 | if (try_difference(arg)) |
637 | continue; | |
2122f8b9 BS |
638 | if (try_parent_shorthands(arg)) |
639 | continue; | |
dfd1b749 CC |
640 | name = arg; |
641 | type = NORMAL; | |
642 | if (*arg == '^') { | |
643 | name++; | |
644 | type = REVERSED; | |
800644c5 | 645 | } |
dfd1b749 CC |
646 | if (!get_sha1(name, sha1)) { |
647 | if (verify) | |
648 | revs_count++; | |
649 | else | |
650 | show_rev(type, sha1, name); | |
800644c5 LT |
651 | continue; |
652 | } | |
75ecfce3 CC |
653 | if (verify) |
654 | die_no_single_rev(quiet); | |
9ad0a933 LT |
655 | as_is = 1; |
656 | if (!show_file(arg)) | |
657 | continue; | |
e23d0b4a | 658 | verify_filename(prefix, arg); |
023d66ed | 659 | } |
dfd1b749 CC |
660 | if (verify) { |
661 | if (revs_count == 1) { | |
662 | show_rev(type, sha1, name); | |
663 | return 0; | |
664 | } else if (revs_count == 0 && show_default()) | |
665 | return 0; | |
b1b35969 | 666 | die_no_single_rev(quiet); |
dfd1b749 CC |
667 | } else |
668 | show_default(); | |
178cb243 LT |
669 | return 0; |
670 | } |