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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 | ||
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 | ||
19 | static const char *def; | |
20 | ||
21 | #define NORMAL 0 | |
22 | #define REVERSED 1 | |
23 | static int show_type = NORMAL; | |
24 | ||
25 | #define SHOW_SYMBOLIC_ASIS 1 | |
26 | #define SHOW_SYMBOLIC_FULL 2 | |
27 | static int symbolic; | |
28 | static int abbrev; | |
29 | static int abbrev_ref; | |
30 | static int abbrev_ref_strict; | |
31 | static int output_sq; | |
32 | ||
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[] = { | |
41 | "--all", | |
42 | "--bisect", | |
43 | "--dense", | |
44 | "--branches", | |
45 | "--header", | |
46 | "--max-age=", | |
47 | "--max-count=", | |
48 | "--min-age=", | |
49 | "--no-merges", | |
50 | "--objects", | |
51 | "--objects-edge", | |
52 | "--parents", | |
53 | "--pretty", | |
54 | "--remotes", | |
55 | "--sparse", | |
56 | "--tags", | |
57 | "--topo-order", | |
58 | "--date-order", | |
59 | "--unpacked", | |
60 | NULL | |
61 | }; | |
62 | const char **p = rev_args; | |
63 | ||
64 | /* accept -<digit>, like traditional "head" */ | |
65 | if ((*arg == '-') && isdigit(arg[1])) | |
66 | return 1; | |
67 | ||
68 | for (;;) { | |
69 | const char *str = *p++; | |
70 | int len; | |
71 | if (!str) | |
72 | return 0; | |
73 | len = strlen(str); | |
74 | if (!strcmp(arg, str) || | |
75 | (str[len-1] == '=' && !strncmp(arg, str, len))) | |
76 | return 1; | |
77 | } | |
78 | } | |
79 | ||
80 | /* Output argument as a string, either SQ or normal */ | |
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 | ||
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 | ||
107 | /* Output a revision, only if filter allows it */ | |
108 | static void show_rev(int type, const unsigned char *sha1, const char *name) | |
109 | { | |
110 | if (!(filter & DO_REVS)) | |
111 | return; | |
112 | def = NULL; | |
113 | ||
114 | if ((symbolic || abbrev_ref) && name) { | |
115 | if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { | |
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 */ | |
130 | if (abbrev_ref) | |
131 | full = shorten_unambiguous_ref(full, | |
132 | abbrev_ref_strict); | |
133 | show_with_type(type, full); | |
134 | break; | |
135 | default: /* ambiguous */ | |
136 | error("refname '%s' is ambiguous", name); | |
137 | break; | |
138 | } | |
139 | } else { | |
140 | show_with_type(type, name); | |
141 | } | |
142 | } | |
143 | else if (abbrev) | |
144 | show_with_type(type, find_unique_abbrev(sha1, abbrev)); | |
145 | else | |
146 | show_with_type(type, sha1_to_hex(sha1)); | |
147 | } | |
148 | ||
149 | /* Output a flag, only if filter allows it. */ | |
150 | static int show_flag(const char *arg) | |
151 | { | |
152 | if (!(filter & DO_FLAGS)) | |
153 | return 0; | |
154 | if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) { | |
155 | show(arg); | |
156 | return 1; | |
157 | } | |
158 | return 0; | |
159 | } | |
160 | ||
161 | static int show_default(void) | |
162 | { | |
163 | const char *s = def; | |
164 | ||
165 | if (s) { | |
166 | unsigned char sha1[20]; | |
167 | ||
168 | def = NULL; | |
169 | if (!get_sha1(s, sha1)) { | |
170 | show_rev(NORMAL, sha1, s); | |
171 | return 1; | |
172 | } | |
173 | } | |
174 | return 0; | |
175 | } | |
176 | ||
177 | static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) | |
178 | { | |
179 | show_rev(NORMAL, sha1, refname); | |
180 | return 0; | |
181 | } | |
182 | ||
183 | static int anti_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) | |
184 | { | |
185 | show_rev(REVERSED, sha1, refname); | |
186 | return 0; | |
187 | } | |
188 | ||
189 | static void show_datestring(const char *flag, const char *datestr) | |
190 | { | |
191 | static char buffer[100]; | |
192 | ||
193 | /* date handling requires both flags and revs */ | |
194 | if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) | |
195 | return; | |
196 | snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr)); | |
197 | show(buffer); | |
198 | } | |
199 | ||
200 | static int show_file(const char *arg) | |
201 | { | |
202 | show_default(); | |
203 | if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { | |
204 | show(arg); | |
205 | return 1; | |
206 | } | |
207 | return 0; | |
208 | } | |
209 | ||
210 | static int try_difference(const char *arg) | |
211 | { | |
212 | char *dotdot; | |
213 | unsigned char sha1[20]; | |
214 | unsigned char end[20]; | |
215 | const char *next; | |
216 | const char *this; | |
217 | int symmetric; | |
218 | ||
219 | if (!(dotdot = strstr(arg, ".."))) | |
220 | return 0; | |
221 | next = dotdot + 2; | |
222 | this = arg; | |
223 | symmetric = (*next == '.'); | |
224 | ||
225 | *dotdot = 0; | |
226 | next += symmetric; | |
227 | ||
228 | if (!*next) | |
229 | next = "HEAD"; | |
230 | if (dotdot == arg) | |
231 | this = "HEAD"; | |
232 | if (!get_sha1(this, sha1) && !get_sha1(next, end)) { | |
233 | show_rev(NORMAL, end, next); | |
234 | show_rev(symmetric ? NORMAL : REVERSED, sha1, this); | |
235 | if (symmetric) { | |
236 | struct commit_list *exclude; | |
237 | struct commit *a, *b; | |
238 | a = lookup_commit_reference(sha1); | |
239 | b = lookup_commit_reference(end); | |
240 | exclude = get_merge_bases(a, b, 1); | |
241 | while (exclude) { | |
242 | struct commit_list *n = exclude->next; | |
243 | show_rev(REVERSED, | |
244 | exclude->item->object.sha1,NULL); | |
245 | free(exclude); | |
246 | exclude = n; | |
247 | } | |
248 | } | |
249 | return 1; | |
250 | } | |
251 | *dotdot = '.'; | |
252 | return 0; | |
253 | } | |
254 | ||
255 | static int try_parent_shorthands(const char *arg) | |
256 | { | |
257 | char *dotdot; | |
258 | unsigned char sha1[20]; | |
259 | struct commit *commit; | |
260 | struct commit_list *parents; | |
261 | int parents_only; | |
262 | ||
263 | if ((dotdot = strstr(arg, "^!"))) | |
264 | parents_only = 0; | |
265 | else if ((dotdot = strstr(arg, "^@"))) | |
266 | parents_only = 1; | |
267 | ||
268 | if (!dotdot || dotdot[2]) | |
269 | return 0; | |
270 | ||
271 | *dotdot = 0; | |
272 | if (get_sha1(arg, sha1)) | |
273 | return 0; | |
274 | ||
275 | if (!parents_only) | |
276 | show_rev(NORMAL, sha1, arg); | |
277 | commit = lookup_commit_reference(sha1); | |
278 | for (parents = commit->parents; parents; parents = parents->next) | |
279 | show_rev(parents_only ? NORMAL : REVERSED, | |
280 | parents->item->object.sha1, arg); | |
281 | ||
282 | return 1; | |
283 | } | |
284 | ||
285 | static int parseopt_dump(const struct option *o, const char *arg, int unset) | |
286 | { | |
287 | struct strbuf *parsed = o->value; | |
288 | if (unset) | |
289 | strbuf_addf(parsed, " --no-%s", o->long_name); | |
290 | else if (o->short_name) | |
291 | strbuf_addf(parsed, " -%c", o->short_name); | |
292 | else | |
293 | strbuf_addf(parsed, " --%s", o->long_name); | |
294 | if (arg) { | |
295 | strbuf_addch(parsed, ' '); | |
296 | sq_quote_buf(parsed, arg); | |
297 | } | |
298 | return 0; | |
299 | } | |
300 | ||
301 | static const char *skipspaces(const char *s) | |
302 | { | |
303 | while (isspace(*s)) | |
304 | s++; | |
305 | return s; | |
306 | } | |
307 | ||
308 | static int cmd_parseopt(int argc, const char **argv, const char *prefix) | |
309 | { | |
310 | static int keep_dashdash = 0, stop_at_non_option = 0; | |
311 | static char const * const parseopt_usage[] = { | |
312 | "git rev-parse --parseopt [options] -- [<args>...]", | |
313 | NULL | |
314 | }; | |
315 | static struct option parseopt_opts[] = { | |
316 | OPT_BOOLEAN(0, "keep-dashdash", &keep_dashdash, | |
317 | "keep the `--` passed as an arg"), | |
318 | OPT_BOOLEAN(0, "stop-at-non-option", &stop_at_non_option, | |
319 | "stop parsing after the " | |
320 | "first non-option argument"), | |
321 | OPT_END(), | |
322 | }; | |
323 | ||
324 | struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT; | |
325 | const char **usage = NULL; | |
326 | struct option *opts = NULL; | |
327 | int onb = 0, osz = 0, unb = 0, usz = 0; | |
328 | ||
329 | strbuf_addstr(&parsed, "set --"); | |
330 | argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage, | |
331 | PARSE_OPT_KEEP_DASHDASH); | |
332 | if (argc < 1 || strcmp(argv[0], "--")) | |
333 | usage_with_options(parseopt_usage, parseopt_opts); | |
334 | ||
335 | /* get the usage up to the first line with a -- on it */ | |
336 | for (;;) { | |
337 | if (strbuf_getline(&sb, stdin, '\n') == EOF) | |
338 | die("premature end of input"); | |
339 | ALLOC_GROW(usage, unb + 1, usz); | |
340 | if (!strcmp("--", sb.buf)) { | |
341 | if (unb < 1) | |
342 | die("no usage string given before the `--' separator"); | |
343 | usage[unb] = NULL; | |
344 | break; | |
345 | } | |
346 | usage[unb++] = strbuf_detach(&sb, NULL); | |
347 | } | |
348 | ||
349 | /* parse: (<short>|<short>,<long>|<long>)[=?]? SP+ <help> */ | |
350 | while (strbuf_getline(&sb, stdin, '\n') != EOF) { | |
351 | const char *s; | |
352 | struct option *o; | |
353 | ||
354 | if (!sb.len) | |
355 | continue; | |
356 | ||
357 | ALLOC_GROW(opts, onb + 1, osz); | |
358 | memset(opts + onb, 0, sizeof(opts[onb])); | |
359 | ||
360 | o = &opts[onb++]; | |
361 | s = strchr(sb.buf, ' '); | |
362 | if (!s || *sb.buf == ' ') { | |
363 | o->type = OPTION_GROUP; | |
364 | o->help = xstrdup(skipspaces(sb.buf)); | |
365 | continue; | |
366 | } | |
367 | ||
368 | o->type = OPTION_CALLBACK; | |
369 | o->help = xstrdup(skipspaces(s)); | |
370 | o->value = &parsed; | |
371 | o->flags = PARSE_OPT_NOARG; | |
372 | o->callback = &parseopt_dump; | |
373 | while (s > sb.buf && strchr("*=?!", s[-1])) { | |
374 | switch (*--s) { | |
375 | case '=': | |
376 | o->flags &= ~PARSE_OPT_NOARG; | |
377 | break; | |
378 | case '?': | |
379 | o->flags &= ~PARSE_OPT_NOARG; | |
380 | o->flags |= PARSE_OPT_OPTARG; | |
381 | break; | |
382 | case '!': | |
383 | o->flags |= PARSE_OPT_NONEG; | |
384 | break; | |
385 | case '*': | |
386 | o->flags |= PARSE_OPT_HIDDEN; | |
387 | break; | |
388 | } | |
389 | } | |
390 | ||
391 | if (s - sb.buf == 1) /* short option only */ | |
392 | o->short_name = *sb.buf; | |
393 | else if (sb.buf[1] != ',') /* long option only */ | |
394 | o->long_name = xmemdupz(sb.buf, s - sb.buf); | |
395 | else { | |
396 | o->short_name = *sb.buf; | |
397 | o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); | |
398 | } | |
399 | } | |
400 | strbuf_release(&sb); | |
401 | ||
402 | /* put an OPT_END() */ | |
403 | ALLOC_GROW(opts, onb + 1, osz); | |
404 | memset(opts + onb, 0, sizeof(opts[onb])); | |
405 | argc = parse_options(argc, argv, prefix, opts, usage, | |
406 | keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0 | | |
407 | stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0); | |
408 | ||
409 | strbuf_addf(&parsed, " --"); | |
410 | sq_quote_argv(&parsed, argv, 0); | |
411 | puts(parsed.buf); | |
412 | return 0; | |
413 | } | |
414 | ||
415 | static int cmd_sq_quote(int argc, const char **argv) | |
416 | { | |
417 | struct strbuf buf = STRBUF_INIT; | |
418 | ||
419 | if (argc) | |
420 | sq_quote_argv(&buf, argv, 0); | |
421 | printf("%s\n", buf.buf); | |
422 | strbuf_release(&buf); | |
423 | ||
424 | return 0; | |
425 | } | |
426 | ||
427 | static void die_no_single_rev(int quiet) | |
428 | { | |
429 | if (quiet) | |
430 | exit(1); | |
431 | else | |
432 | die("Needed a single revision"); | |
433 | } | |
434 | ||
435 | static const char builtin_rev_parse_usage[] = | |
436 | "git rev-parse --parseopt [options] -- [<args>...]\n" | |
437 | " or: git rev-parse --sq-quote [<arg>...]\n" | |
438 | " or: git rev-parse [options] [<arg>...]\n" | |
439 | "\n" | |
440 | "Run \"git rev-parse --parseopt -h\" for more information on the first usage."; | |
441 | ||
442 | int cmd_rev_parse(int argc, const char **argv, const char *prefix) | |
443 | { | |
444 | int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; | |
445 | unsigned char sha1[20]; | |
446 | const char *name = NULL; | |
447 | ||
448 | if (argc > 1 && !strcmp("--parseopt", argv[1])) | |
449 | return cmd_parseopt(argc - 1, argv + 1, prefix); | |
450 | ||
451 | if (argc > 1 && !strcmp("--sq-quote", argv[1])) | |
452 | return cmd_sq_quote(argc - 2, argv + 2); | |
453 | ||
454 | if (argc > 1 && !strcmp("-h", argv[1])) | |
455 | usage(builtin_rev_parse_usage); | |
456 | ||
457 | prefix = setup_git_directory(); | |
458 | git_config(git_default_config, NULL); | |
459 | for (i = 1; i < argc; i++) { | |
460 | const char *arg = argv[i]; | |
461 | ||
462 | if (as_is) { | |
463 | if (show_file(arg) && as_is < 2) | |
464 | verify_filename(prefix, arg); | |
465 | continue; | |
466 | } | |
467 | if (!strcmp(arg,"-n")) { | |
468 | if (++i >= argc) | |
469 | die("-n requires an argument"); | |
470 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) { | |
471 | show(arg); | |
472 | show(argv[i]); | |
473 | } | |
474 | continue; | |
475 | } | |
476 | if (!prefixcmp(arg, "-n")) { | |
477 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) | |
478 | show(arg); | |
479 | continue; | |
480 | } | |
481 | ||
482 | if (*arg == '-') { | |
483 | if (!strcmp(arg, "--")) { | |
484 | as_is = 2; | |
485 | /* Pass on the "--" if we show anything but files.. */ | |
486 | if (filter & (DO_FLAGS | DO_REVS)) | |
487 | show_file(arg); | |
488 | continue; | |
489 | } | |
490 | if (!strcmp(arg, "--default")) { | |
491 | def = argv[i+1]; | |
492 | i++; | |
493 | continue; | |
494 | } | |
495 | if (!strcmp(arg, "--revs-only")) { | |
496 | filter &= ~DO_NOREV; | |
497 | continue; | |
498 | } | |
499 | if (!strcmp(arg, "--no-revs")) { | |
500 | filter &= ~DO_REVS; | |
501 | continue; | |
502 | } | |
503 | if (!strcmp(arg, "--flags")) { | |
504 | filter &= ~DO_NONFLAGS; | |
505 | continue; | |
506 | } | |
507 | if (!strcmp(arg, "--no-flags")) { | |
508 | filter &= ~DO_FLAGS; | |
509 | continue; | |
510 | } | |
511 | if (!strcmp(arg, "--verify")) { | |
512 | filter &= ~(DO_FLAGS|DO_NOREV); | |
513 | verify = 1; | |
514 | continue; | |
515 | } | |
516 | if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { | |
517 | quiet = 1; | |
518 | continue; | |
519 | } | |
520 | if (!strcmp(arg, "--short") || | |
521 | !prefixcmp(arg, "--short=")) { | |
522 | filter &= ~(DO_FLAGS|DO_NOREV); | |
523 | verify = 1; | |
524 | abbrev = DEFAULT_ABBREV; | |
525 | if (arg[7] == '=') | |
526 | abbrev = strtoul(arg + 8, NULL, 10); | |
527 | if (abbrev < MINIMUM_ABBREV) | |
528 | abbrev = MINIMUM_ABBREV; | |
529 | else if (40 <= abbrev) | |
530 | abbrev = 40; | |
531 | continue; | |
532 | } | |
533 | if (!strcmp(arg, "--sq")) { | |
534 | output_sq = 1; | |
535 | continue; | |
536 | } | |
537 | if (!strcmp(arg, "--not")) { | |
538 | show_type ^= REVERSED; | |
539 | continue; | |
540 | } | |
541 | if (!strcmp(arg, "--symbolic")) { | |
542 | symbolic = SHOW_SYMBOLIC_ASIS; | |
543 | continue; | |
544 | } | |
545 | if (!strcmp(arg, "--symbolic-full-name")) { | |
546 | symbolic = SHOW_SYMBOLIC_FULL; | |
547 | continue; | |
548 | } | |
549 | if (!prefixcmp(arg, "--abbrev-ref") && | |
550 | (!arg[12] || arg[12] == '=')) { | |
551 | abbrev_ref = 1; | |
552 | abbrev_ref_strict = warn_ambiguous_refs; | |
553 | if (arg[12] == '=') { | |
554 | if (!strcmp(arg + 13, "strict")) | |
555 | abbrev_ref_strict = 1; | |
556 | else if (!strcmp(arg + 13, "loose")) | |
557 | abbrev_ref_strict = 0; | |
558 | else | |
559 | die("unknown mode for %s", arg); | |
560 | } | |
561 | continue; | |
562 | } | |
563 | if (!strcmp(arg, "--all")) { | |
564 | for_each_ref(show_reference, NULL); | |
565 | continue; | |
566 | } | |
567 | if (!strcmp(arg, "--bisect")) { | |
568 | for_each_ref_in("refs/bisect/bad", show_reference, NULL); | |
569 | for_each_ref_in("refs/bisect/good", anti_reference, NULL); | |
570 | continue; | |
571 | } | |
572 | if (!strcmp(arg, "--branches")) { | |
573 | for_each_branch_ref(show_reference, NULL); | |
574 | continue; | |
575 | } | |
576 | if (!strcmp(arg, "--tags")) { | |
577 | for_each_tag_ref(show_reference, NULL); | |
578 | continue; | |
579 | } | |
580 | if (!strcmp(arg, "--remotes")) { | |
581 | for_each_remote_ref(show_reference, NULL); | |
582 | continue; | |
583 | } | |
584 | if (!strcmp(arg, "--show-toplevel")) { | |
585 | const char *work_tree = get_git_work_tree(); | |
586 | if (work_tree) | |
587 | puts(work_tree); | |
588 | continue; | |
589 | } | |
590 | if (!strcmp(arg, "--show-prefix")) { | |
591 | if (prefix) | |
592 | puts(prefix); | |
593 | continue; | |
594 | } | |
595 | if (!strcmp(arg, "--show-cdup")) { | |
596 | const char *pfx = prefix; | |
597 | if (!is_inside_work_tree()) { | |
598 | const char *work_tree = | |
599 | get_git_work_tree(); | |
600 | if (work_tree) | |
601 | printf("%s\n", work_tree); | |
602 | continue; | |
603 | } | |
604 | while (pfx) { | |
605 | pfx = strchr(pfx, '/'); | |
606 | if (pfx) { | |
607 | pfx++; | |
608 | printf("../"); | |
609 | } | |
610 | } | |
611 | putchar('\n'); | |
612 | continue; | |
613 | } | |
614 | if (!strcmp(arg, "--git-dir")) { | |
615 | const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); | |
616 | static char cwd[PATH_MAX]; | |
617 | if (gitdir) { | |
618 | puts(gitdir); | |
619 | continue; | |
620 | } | |
621 | if (!prefix) { | |
622 | puts(".git"); | |
623 | continue; | |
624 | } | |
625 | if (!getcwd(cwd, PATH_MAX)) | |
626 | die_errno("unable to get current working directory"); | |
627 | printf("%s/.git\n", cwd); | |
628 | continue; | |
629 | } | |
630 | if (!strcmp(arg, "--is-inside-git-dir")) { | |
631 | printf("%s\n", is_inside_git_dir() ? "true" | |
632 | : "false"); | |
633 | continue; | |
634 | } | |
635 | if (!strcmp(arg, "--is-inside-work-tree")) { | |
636 | printf("%s\n", is_inside_work_tree() ? "true" | |
637 | : "false"); | |
638 | continue; | |
639 | } | |
640 | if (!strcmp(arg, "--is-bare-repository")) { | |
641 | printf("%s\n", is_bare_repository() ? "true" | |
642 | : "false"); | |
643 | continue; | |
644 | } | |
645 | if (!prefixcmp(arg, "--since=")) { | |
646 | show_datestring("--max-age=", arg+8); | |
647 | continue; | |
648 | } | |
649 | if (!prefixcmp(arg, "--after=")) { | |
650 | show_datestring("--max-age=", arg+8); | |
651 | continue; | |
652 | } | |
653 | if (!prefixcmp(arg, "--before=")) { | |
654 | show_datestring("--min-age=", arg+9); | |
655 | continue; | |
656 | } | |
657 | if (!prefixcmp(arg, "--until=")) { | |
658 | show_datestring("--min-age=", arg+8); | |
659 | continue; | |
660 | } | |
661 | if (show_flag(arg) && verify) | |
662 | die_no_single_rev(quiet); | |
663 | continue; | |
664 | } | |
665 | ||
666 | /* Not a flag argument */ | |
667 | if (try_difference(arg)) | |
668 | continue; | |
669 | if (try_parent_shorthands(arg)) | |
670 | continue; | |
671 | name = arg; | |
672 | type = NORMAL; | |
673 | if (*arg == '^') { | |
674 | name++; | |
675 | type = REVERSED; | |
676 | } | |
677 | if (!get_sha1(name, sha1)) { | |
678 | if (verify) | |
679 | revs_count++; | |
680 | else | |
681 | show_rev(type, sha1, name); | |
682 | continue; | |
683 | } | |
684 | if (verify) | |
685 | die_no_single_rev(quiet); | |
686 | as_is = 1; | |
687 | if (!show_file(arg)) | |
688 | continue; | |
689 | verify_filename(prefix, arg); | |
690 | } | |
691 | if (verify) { | |
692 | if (revs_count == 1) { | |
693 | show_rev(type, sha1, name); | |
694 | return 0; | |
695 | } else if (revs_count == 0 && show_default()) | |
696 | return 0; | |
697 | die_no_single_rev(quiet); | |
698 | } else | |
699 | show_default(); | |
700 | return 0; | |
701 | } |