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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" | |
a8be83fe | 14 | |
4866ccf0 JH |
15 | #define DO_REVS 1 |
16 | #define DO_NOREV 2 | |
17 | #define DO_FLAGS 4 | |
18 | #define DO_NONFLAGS 8 | |
19 | static int filter = ~0; | |
20 | ||
96f1e58f | 21 | static const char *def; |
023d66ed | 22 | |
042a4ed7 LT |
23 | #define NORMAL 0 |
24 | #define REVERSED 1 | |
25 | static int show_type = NORMAL; | |
a6d97d49 JH |
26 | |
27 | #define SHOW_SYMBOLIC_ASIS 1 | |
28 | #define SHOW_SYMBOLIC_FULL 2 | |
96f1e58f DR |
29 | static int symbolic; |
30 | static int abbrev; | |
a45d3469 BW |
31 | static int abbrev_ref; |
32 | static int abbrev_ref_strict; | |
96f1e58f | 33 | static int output_sq; |
4866ccf0 | 34 | |
f8c87212 | 35 | static int stuck_long; |
9dc01bf0 | 36 | static struct string_list *ref_excludes; |
f8c87212 | 37 | |
921d865e LT |
38 | /* |
39 | * Some arguments are relevant "revision" arguments, | |
40 | * others are about output format or other details. | |
41 | * This sorts it all out. | |
42 | */ | |
43 | static int is_rev_argument(const char *arg) | |
44 | { | |
45 | static const char *rev_args[] = { | |
e091eb93 | 46 | "--all", |
4866ccf0 | 47 | "--bisect", |
5a83f3be | 48 | "--dense", |
b09fe971 | 49 | "--branches=", |
a62be77f | 50 | "--branches", |
4866ccf0 | 51 | "--header", |
cc243c3c | 52 | "--ignore-missing", |
921d865e | 53 | "--max-age=", |
4866ccf0 | 54 | "--max-count=", |
4866ccf0 | 55 | "--min-age=", |
5ccfb758 | 56 | "--no-merges", |
ad5aeede MG |
57 | "--min-parents=", |
58 | "--no-min-parents", | |
59 | "--max-parents=", | |
60 | "--no-max-parents", | |
4866ccf0 | 61 | "--objects", |
c6496575 | 62 | "--objects-edge", |
4866ccf0 JH |
63 | "--parents", |
64 | "--pretty", | |
b09fe971 | 65 | "--remotes=", |
a62be77f | 66 | "--remotes", |
d08bae7e | 67 | "--glob=", |
5a83f3be | 68 | "--sparse", |
b09fe971 | 69 | "--tags=", |
a62be77f | 70 | "--tags", |
4866ccf0 | 71 | "--topo-order", |
4c8725f1 | 72 | "--date-order", |
4866ccf0 | 73 | "--unpacked", |
921d865e LT |
74 | NULL |
75 | }; | |
76 | const char **p = rev_args; | |
77 | ||
8233340c EW |
78 | /* accept -<digit>, like traditional "head" */ |
79 | if ((*arg == '-') && isdigit(arg[1])) | |
80 | return 1; | |
81 | ||
921d865e LT |
82 | for (;;) { |
83 | const char *str = *p++; | |
84 | int len; | |
85 | if (!str) | |
86 | return 0; | |
87 | len = strlen(str); | |
4866ccf0 JH |
88 | if (!strcmp(arg, str) || |
89 | (str[len-1] == '=' && !strncmp(arg, str, len))) | |
921d865e LT |
90 | return 1; |
91 | } | |
92 | } | |
93 | ||
4866ccf0 | 94 | /* Output argument as a string, either SQ or normal */ |
5bb2c65a JH |
95 | static void show(const char *arg) |
96 | { | |
97 | if (output_sq) { | |
98 | int sq = '\'', ch; | |
99 | ||
100 | putchar(sq); | |
101 | while ((ch = *arg++)) { | |
102 | if (ch == sq) | |
103 | fputs("'\\'", stdout); | |
104 | putchar(ch); | |
105 | } | |
106 | putchar(sq); | |
107 | putchar(' '); | |
108 | } | |
109 | else | |
110 | puts(arg); | |
111 | } | |
112 | ||
e00f3790 JS |
113 | /* Like show(), but with a negation prefix according to type */ |
114 | static void show_with_type(int type, const char *arg) | |
115 | { | |
116 | if (type != show_type) | |
117 | putchar('^'); | |
118 | show(arg); | |
119 | } | |
120 | ||
4866ccf0 | 121 | /* Output a revision, only if filter allows it */ |
30b96fce | 122 | static void show_rev(int type, const unsigned char *sha1, const char *name) |
023d66ed | 123 | { |
4866ccf0 | 124 | if (!(filter & DO_REVS)) |
023d66ed | 125 | return; |
4866ccf0 | 126 | def = NULL; |
5bb2c65a | 127 | |
a45d3469 BW |
128 | if ((symbolic || abbrev_ref) && name) { |
129 | if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) { | |
a6d97d49 JH |
130 | unsigned char discard[20]; |
131 | char *full; | |
132 | ||
133 | switch (dwim_ref(name, strlen(name), discard, &full)) { | |
134 | case 0: | |
135 | /* | |
136 | * Not found -- not a ref. We could | |
137 | * emit "name" here, but symbolic-full | |
138 | * users are interested in finding the | |
139 | * refs spelled in full, and they would | |
140 | * need to filter non-refs if we did so. | |
141 | */ | |
142 | break; | |
143 | case 1: /* happy */ | |
a45d3469 BW |
144 | if (abbrev_ref) |
145 | full = shorten_unambiguous_ref(full, | |
146 | abbrev_ref_strict); | |
e00f3790 | 147 | show_with_type(type, full); |
a6d97d49 JH |
148 | break; |
149 | default: /* ambiguous */ | |
150 | error("refname '%s' is ambiguous", name); | |
151 | break; | |
152 | } | |
153 | } else { | |
e00f3790 | 154 | show_with_type(type, name); |
a6d97d49 JH |
155 | } |
156 | } | |
d5012508 | 157 | else if (abbrev) |
e00f3790 | 158 | show_with_type(type, find_unique_abbrev(sha1, abbrev)); |
30b96fce | 159 | else |
e00f3790 | 160 | show_with_type(type, sha1_to_hex(sha1)); |
023d66ed LT |
161 | } |
162 | ||
4866ccf0 | 163 | /* Output a flag, only if filter allows it. */ |
16cee38a | 164 | static int show_flag(const char *arg) |
023d66ed | 165 | { |
4866ccf0 | 166 | if (!(filter & DO_FLAGS)) |
9523a4c2 LT |
167 | return 0; |
168 | if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) { | |
0360e99d | 169 | show(arg); |
9523a4c2 LT |
170 | return 1; |
171 | } | |
172 | return 0; | |
023d66ed LT |
173 | } |
174 | ||
dfd1b749 | 175 | static int show_default(void) |
023d66ed | 176 | { |
16cee38a | 177 | const char *s = def; |
023d66ed LT |
178 | |
179 | if (s) { | |
180 | unsigned char sha1[20]; | |
181 | ||
182 | def = NULL; | |
9938af6a | 183 | if (!get_sha1(s, sha1)) { |
30b96fce | 184 | show_rev(NORMAL, sha1, s); |
dfd1b749 | 185 | return 1; |
023d66ed | 186 | } |
023d66ed | 187 | } |
dfd1b749 | 188 | return 0; |
023d66ed LT |
189 | } |
190 | ||
8da19775 | 191 | static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
960bba0d | 192 | { |
9dc01bf0 JH |
193 | if (ref_excluded(ref_excludes, refname)) |
194 | return 0; | |
30b96fce | 195 | show_rev(NORMAL, sha1, refname); |
960bba0d LT |
196 | return 0; |
197 | } | |
198 | ||
ad3f9a71 LT |
199 | static int anti_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
200 | { | |
201 | show_rev(REVERSED, sha1, refname); | |
202 | return 0; | |
203 | } | |
204 | ||
957d7406 JH |
205 | static int show_abbrev(const unsigned char *sha1, void *cb_data) |
206 | { | |
207 | show_rev(NORMAL, sha1, NULL); | |
208 | return 0; | |
209 | } | |
210 | ||
c1babb1d LT |
211 | static void show_datestring(const char *flag, const char *datestr) |
212 | { | |
c1babb1d | 213 | static char buffer[100]; |
c1babb1d LT |
214 | |
215 | /* date handling requires both flags and revs */ | |
216 | if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS)) | |
217 | return; | |
3c07b1d1 | 218 | snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr)); |
c1babb1d LT |
219 | show(buffer); |
220 | } | |
221 | ||
12b9d327 | 222 | static int show_file(const char *arg, int output_prefix) |
7a3dd472 | 223 | { |
7b34c2fa | 224 | show_default(); |
9ad0a933 | 225 | if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) { |
12b9d327 JK |
226 | if (output_prefix) { |
227 | const char *prefix = startup_info->prefix; | |
228 | show(prefix_filename(prefix, | |
229 | prefix ? strlen(prefix) : 0, | |
230 | arg)); | |
231 | } else | |
232 | show(arg); | |
9ad0a933 LT |
233 | return 1; |
234 | } | |
235 | return 0; | |
7a3dd472 LT |
236 | } |
237 | ||
b7d936b2 | 238 | static int try_difference(const char *arg) |
3dd4e732 SB |
239 | { |
240 | char *dotdot; | |
241 | unsigned char sha1[20]; | |
242 | unsigned char end[20]; | |
243 | const char *next; | |
244 | const char *this; | |
245 | int symmetric; | |
003c84f6 | 246 | static const char head_by_default[] = "HEAD"; |
3dd4e732 SB |
247 | |
248 | if (!(dotdot = strstr(arg, ".."))) | |
249 | return 0; | |
250 | next = dotdot + 2; | |
251 | this = arg; | |
252 | symmetric = (*next == '.'); | |
253 | ||
254 | *dotdot = 0; | |
255 | next += symmetric; | |
256 | ||
257 | if (!*next) | |
003c84f6 | 258 | next = head_by_default; |
3dd4e732 | 259 | if (dotdot == arg) |
003c84f6 JH |
260 | this = head_by_default; |
261 | ||
262 | if (this == head_by_default && next == head_by_default && | |
263 | !symmetric) { | |
264 | /* | |
265 | * Just ".."? That is not a range but the | |
266 | * pathspec for the parent directory. | |
267 | */ | |
268 | *dotdot = '.'; | |
269 | return 0; | |
270 | } | |
271 | ||
c036c4c5 | 272 | if (!get_sha1_committish(this, sha1) && !get_sha1_committish(next, end)) { |
3dd4e732 SB |
273 | show_rev(NORMAL, end, next); |
274 | show_rev(symmetric ? NORMAL : REVERSED, sha1, this); | |
275 | if (symmetric) { | |
276 | struct commit_list *exclude; | |
277 | struct commit *a, *b; | |
278 | a = lookup_commit_reference(sha1); | |
279 | b = lookup_commit_reference(end); | |
2ce406cc | 280 | exclude = get_merge_bases(a, b); |
3dd4e732 SB |
281 | while (exclude) { |
282 | struct commit_list *n = exclude->next; | |
283 | show_rev(REVERSED, | |
284 | exclude->item->object.sha1,NULL); | |
285 | free(exclude); | |
286 | exclude = n; | |
287 | } | |
288 | } | |
62f162f8 | 289 | *dotdot = '.'; |
3dd4e732 SB |
290 | return 1; |
291 | } | |
292 | *dotdot = '.'; | |
293 | return 0; | |
294 | } | |
295 | ||
2122f8b9 BS |
296 | static int try_parent_shorthands(const char *arg) |
297 | { | |
298 | char *dotdot; | |
299 | unsigned char sha1[20]; | |
300 | struct commit *commit; | |
301 | struct commit_list *parents; | |
302 | int parents_only; | |
303 | ||
304 | if ((dotdot = strstr(arg, "^!"))) | |
305 | parents_only = 0; | |
306 | else if ((dotdot = strstr(arg, "^@"))) | |
307 | parents_only = 1; | |
308 | ||
309 | if (!dotdot || dotdot[2]) | |
310 | return 0; | |
311 | ||
312 | *dotdot = 0; | |
62f162f8 JK |
313 | if (get_sha1_committish(arg, sha1)) { |
314 | *dotdot = '^'; | |
2122f8b9 | 315 | return 0; |
62f162f8 | 316 | } |
2122f8b9 BS |
317 | |
318 | if (!parents_only) | |
319 | show_rev(NORMAL, sha1, arg); | |
320 | commit = lookup_commit_reference(sha1); | |
321 | for (parents = commit->parents; parents; parents = parents->next) | |
322 | show_rev(parents_only ? NORMAL : REVERSED, | |
323 | parents->item->object.sha1, arg); | |
324 | ||
62f162f8 | 325 | *dotdot = '^'; |
2122f8b9 BS |
326 | return 1; |
327 | } | |
328 | ||
21d47835 PH |
329 | static int parseopt_dump(const struct option *o, const char *arg, int unset) |
330 | { | |
331 | struct strbuf *parsed = o->value; | |
332 | if (unset) | |
333 | strbuf_addf(parsed, " --no-%s", o->long_name); | |
f8c87212 | 334 | else if (o->short_name && (o->long_name == NULL || !stuck_long)) |
21d47835 PH |
335 | strbuf_addf(parsed, " -%c", o->short_name); |
336 | else | |
337 | strbuf_addf(parsed, " --%s", o->long_name); | |
338 | if (arg) { | |
f8c87212 NV |
339 | if (!stuck_long) |
340 | strbuf_addch(parsed, ' '); | |
341 | else if (o->long_name) | |
342 | strbuf_addch(parsed, '='); | |
21d47835 PH |
343 | sq_quote_buf(parsed, arg); |
344 | } | |
345 | return 0; | |
346 | } | |
347 | ||
348 | static const char *skipspaces(const char *s) | |
349 | { | |
350 | while (isspace(*s)) | |
351 | s++; | |
352 | return s; | |
353 | } | |
354 | ||
355 | static int cmd_parseopt(int argc, const char **argv, const char *prefix) | |
356 | { | |
6e0800ef | 357 | static int keep_dashdash = 0, stop_at_non_option = 0; |
21d47835 | 358 | static char const * const parseopt_usage[] = { |
2c7c184c | 359 | N_("git rev-parse --parseopt [options] -- [<args>...]"), |
21d47835 PH |
360 | NULL |
361 | }; | |
362 | static struct option parseopt_opts[] = { | |
d5d09d47 | 363 | OPT_BOOL(0, "keep-dashdash", &keep_dashdash, |
2c7c184c | 364 | N_("keep the `--` passed as an arg")), |
d5d09d47 | 365 | OPT_BOOL(0, "stop-at-non-option", &stop_at_non_option, |
2c7c184c NTND |
366 | N_("stop parsing after the " |
367 | "first non-option argument")), | |
f8c87212 NV |
368 | OPT_BOOL(0, "stuck-long", &stuck_long, |
369 | N_("output in stuck long form")), | |
21d47835 PH |
370 | OPT_END(), |
371 | }; | |
372 | ||
f285a2d7 | 373 | struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT; |
21d47835 PH |
374 | const char **usage = NULL; |
375 | struct option *opts = NULL; | |
376 | int onb = 0, osz = 0, unb = 0, usz = 0; | |
377 | ||
21d47835 | 378 | strbuf_addstr(&parsed, "set --"); |
37782920 | 379 | argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage, |
21d47835 PH |
380 | PARSE_OPT_KEEP_DASHDASH); |
381 | if (argc < 1 || strcmp(argv[0], "--")) | |
382 | usage_with_options(parseopt_usage, parseopt_opts); | |
383 | ||
21d47835 PH |
384 | /* get the usage up to the first line with a -- on it */ |
385 | for (;;) { | |
386 | if (strbuf_getline(&sb, stdin, '\n') == EOF) | |
387 | die("premature end of input"); | |
388 | ALLOC_GROW(usage, unb + 1, usz); | |
389 | if (!strcmp("--", sb.buf)) { | |
390 | if (unb < 1) | |
391 | die("no usage string given before the `--' separator"); | |
392 | usage[unb] = NULL; | |
393 | break; | |
394 | } | |
395 | usage[unb++] = strbuf_detach(&sb, NULL); | |
396 | } | |
397 | ||
9bab5b60 | 398 | /* parse: (<short>|<short>,<long>|<long>)[*=?!]*<arghint>? SP+ <help> */ |
21d47835 PH |
399 | while (strbuf_getline(&sb, stdin, '\n') != EOF) { |
400 | const char *s; | |
9bab5b60 | 401 | const char *end; |
21d47835 PH |
402 | struct option *o; |
403 | ||
404 | if (!sb.len) | |
405 | continue; | |
406 | ||
407 | ALLOC_GROW(opts, onb + 1, osz); | |
408 | memset(opts + onb, 0, sizeof(opts[onb])); | |
409 | ||
410 | o = &opts[onb++]; | |
411 | s = strchr(sb.buf, ' '); | |
412 | if (!s || *sb.buf == ' ') { | |
413 | o->type = OPTION_GROUP; | |
e1033436 | 414 | o->help = xstrdup(skipspaces(sb.buf)); |
21d47835 PH |
415 | continue; |
416 | } | |
417 | ||
418 | o->type = OPTION_CALLBACK; | |
419 | o->help = xstrdup(skipspaces(s)); | |
420 | o->value = &parsed; | |
ff962a3f | 421 | o->flags = PARSE_OPT_NOARG; |
21d47835 | 422 | o->callback = &parseopt_dump; |
9bab5b60 IB |
423 | |
424 | /* Possible argument name hint */ | |
425 | end = s; | |
426 | while (s > sb.buf && strchr("*=?!", s[-1]) == NULL) | |
427 | --s; | |
428 | if (s != sb.buf && s != end) | |
429 | o->argh = xmemdupz(s, end - s); | |
430 | if (s == sb.buf) | |
431 | s = end; | |
432 | ||
ff962a3f PH |
433 | while (s > sb.buf && strchr("*=?!", s[-1])) { |
434 | switch (*--s) { | |
435 | case '=': | |
436 | o->flags &= ~PARSE_OPT_NOARG; | |
437 | break; | |
438 | case '?': | |
439 | o->flags &= ~PARSE_OPT_NOARG; | |
440 | o->flags |= PARSE_OPT_OPTARG; | |
441 | break; | |
442 | case '!': | |
443 | o->flags |= PARSE_OPT_NONEG; | |
444 | break; | |
445 | case '*': | |
446 | o->flags |= PARSE_OPT_HIDDEN; | |
447 | break; | |
448 | } | |
21d47835 PH |
449 | } |
450 | ||
451 | if (s - sb.buf == 1) /* short option only */ | |
452 | o->short_name = *sb.buf; | |
453 | else if (sb.buf[1] != ',') /* long option only */ | |
454 | o->long_name = xmemdupz(sb.buf, s - sb.buf); | |
455 | else { | |
456 | o->short_name = *sb.buf; | |
457 | o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2); | |
458 | } | |
459 | } | |
460 | strbuf_release(&sb); | |
461 | ||
462 | /* put an OPT_END() */ | |
463 | ALLOC_GROW(opts, onb + 1, osz); | |
464 | memset(opts + onb, 0, sizeof(opts[onb])); | |
37782920 | 465 | argc = parse_options(argc, argv, prefix, opts, usage, |
29981380 | 466 | (keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0) | |
fcd91f8d | 467 | (stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0) | |
47e9cd28 | 468 | PARSE_OPT_SHELL_EVAL); |
21d47835 PH |
469 | |
470 | strbuf_addf(&parsed, " --"); | |
b319ce4c | 471 | sq_quote_argv(&parsed, argv, 0); |
21d47835 PH |
472 | puts(parsed.buf); |
473 | return 0; | |
474 | } | |
475 | ||
50325377 CC |
476 | static int cmd_sq_quote(int argc, const char **argv) |
477 | { | |
478 | struct strbuf buf = STRBUF_INIT; | |
479 | ||
480 | if (argc) | |
481 | sq_quote_argv(&buf, argv, 0); | |
482 | printf("%s\n", buf.buf); | |
483 | strbuf_release(&buf); | |
484 | ||
485 | return 0; | |
486 | } | |
487 | ||
b1b35969 CC |
488 | static void die_no_single_rev(int quiet) |
489 | { | |
490 | if (quiet) | |
491 | exit(1); | |
492 | else | |
493 | die("Needed a single revision"); | |
494 | } | |
495 | ||
7006b5be | 496 | static const char builtin_rev_parse_usage[] = |
2c7c184c NTND |
497 | N_("git rev-parse --parseopt [options] -- [<args>...]\n" |
498 | " or: git rev-parse --sq-quote [<arg>...]\n" | |
499 | " or: git rev-parse [options] [<arg>...]\n" | |
500 | "\n" | |
501 | "Run \"git rev-parse --parseopt -h\" for more information on the first usage."); | |
7006b5be | 502 | |
a633fca0 | 503 | int cmd_rev_parse(int argc, const char **argv, const char *prefix) |
178cb243 | 504 | { |
dfd1b749 | 505 | int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0; |
14185673 | 506 | int has_dashdash = 0; |
12b9d327 | 507 | int output_prefix = 0; |
178cb243 | 508 | unsigned char sha1[20]; |
dfd1b749 | 509 | const char *name = NULL; |
a62be77f | 510 | |
21d47835 PH |
511 | if (argc > 1 && !strcmp("--parseopt", argv[1])) |
512 | return cmd_parseopt(argc - 1, argv + 1, prefix); | |
513 | ||
50325377 CC |
514 | if (argc > 1 && !strcmp("--sq-quote", argv[1])) |
515 | return cmd_sq_quote(argc - 2, argv + 2); | |
516 | ||
7006b5be JN |
517 | if (argc > 1 && !strcmp("-h", argv[1])) |
518 | usage(builtin_rev_parse_usage); | |
519 | ||
14185673 JK |
520 | for (i = 1; i < argc; i++) { |
521 | if (!strcmp(argv[i], "--")) { | |
522 | has_dashdash = 1; | |
523 | break; | |
524 | } | |
525 | } | |
526 | ||
5410a02a | 527 | prefix = setup_git_directory(); |
ef90d6d4 | 528 | git_config(git_default_config, NULL); |
178cb243 | 529 | for (i = 1; i < argc; i++) { |
16cee38a | 530 | const char *arg = argv[i]; |
fb18a2ed | 531 | |
178cb243 | 532 | if (as_is) { |
12b9d327 | 533 | if (show_file(arg, output_prefix) && as_is < 2) |
023e37c3 | 534 | verify_filename(prefix, arg, 0); |
178cb243 LT |
535 | continue; |
536 | } | |
3af06987 EW |
537 | if (!strcmp(arg,"-n")) { |
538 | if (++i >= argc) | |
539 | die("-n requires an argument"); | |
540 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) { | |
541 | show(arg); | |
542 | show(argv[i]); | |
543 | } | |
544 | continue; | |
545 | } | |
59556548 | 546 | if (starts_with(arg, "-n")) { |
3af06987 EW |
547 | if ((filter & DO_FLAGS) && (filter & DO_REVS)) |
548 | show(arg); | |
549 | continue; | |
550 | } | |
551 | ||
178cb243 LT |
552 | if (*arg == '-') { |
553 | if (!strcmp(arg, "--")) { | |
fb18a2ed | 554 | as_is = 2; |
a08b6505 LT |
555 | /* Pass on the "--" if we show anything but files.. */ |
556 | if (filter & (DO_FLAGS | DO_REVS)) | |
12b9d327 | 557 | show_file(arg, 0); |
4866ccf0 | 558 | continue; |
178cb243 LT |
559 | } |
560 | if (!strcmp(arg, "--default")) { | |
a43219f2 DS |
561 | def = argv[++i]; |
562 | if (!def) | |
563 | die("--default requires an argument"); | |
178cb243 LT |
564 | continue; |
565 | } | |
12b9d327 | 566 | if (!strcmp(arg, "--prefix")) { |
a43219f2 DS |
567 | prefix = argv[++i]; |
568 | if (!prefix) | |
569 | die("--prefix requires an argument"); | |
12b9d327 JK |
570 | startup_info->prefix = prefix; |
571 | output_prefix = 1; | |
12b9d327 JK |
572 | continue; |
573 | } | |
8ebb0184 | 574 | if (!strcmp(arg, "--revs-only")) { |
4866ccf0 | 575 | filter &= ~DO_NOREV; |
8ebb0184 LT |
576 | continue; |
577 | } | |
578 | if (!strcmp(arg, "--no-revs")) { | |
4866ccf0 | 579 | filter &= ~DO_REVS; |
8ebb0184 LT |
580 | continue; |
581 | } | |
f79b65aa | 582 | if (!strcmp(arg, "--flags")) { |
4866ccf0 | 583 | filter &= ~DO_NONFLAGS; |
f79b65aa LT |
584 | continue; |
585 | } | |
586 | if (!strcmp(arg, "--no-flags")) { | |
4866ccf0 | 587 | filter &= ~DO_FLAGS; |
f79b65aa LT |
588 | continue; |
589 | } | |
023d66ed | 590 | if (!strcmp(arg, "--verify")) { |
4866ccf0 JH |
591 | filter &= ~(DO_FLAGS|DO_NOREV); |
592 | verify = 1; | |
023d66ed | 593 | continue; |
921d865e | 594 | } |
b1b35969 CC |
595 | if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) { |
596 | quiet = 1; | |
597 | continue; | |
598 | } | |
62a604ba | 599 | if (!strcmp(arg, "--short") || |
59556548 | 600 | starts_with(arg, "--short=")) { |
d5012508 JH |
601 | filter &= ~(DO_FLAGS|DO_NOREV); |
602 | verify = 1; | |
603 | abbrev = DEFAULT_ABBREV; | |
44de0da4 JF |
604 | if (arg[7] == '=') |
605 | abbrev = strtoul(arg + 8, NULL, 10); | |
1dc4fb84 JH |
606 | if (abbrev < MINIMUM_ABBREV) |
607 | abbrev = MINIMUM_ABBREV; | |
608 | else if (40 <= abbrev) | |
609 | abbrev = 40; | |
d5012508 JH |
610 | continue; |
611 | } | |
5bb2c65a JH |
612 | if (!strcmp(arg, "--sq")) { |
613 | output_sq = 1; | |
614 | continue; | |
615 | } | |
042a4ed7 LT |
616 | if (!strcmp(arg, "--not")) { |
617 | show_type ^= REVERSED; | |
618 | continue; | |
619 | } | |
30b96fce | 620 | if (!strcmp(arg, "--symbolic")) { |
a6d97d49 JH |
621 | symbolic = SHOW_SYMBOLIC_ASIS; |
622 | continue; | |
623 | } | |
624 | if (!strcmp(arg, "--symbolic-full-name")) { | |
625 | symbolic = SHOW_SYMBOLIC_FULL; | |
30b96fce JH |
626 | continue; |
627 | } | |
59556548 | 628 | if (starts_with(arg, "--abbrev-ref") && |
a45d3469 BW |
629 | (!arg[12] || arg[12] == '=')) { |
630 | abbrev_ref = 1; | |
631 | abbrev_ref_strict = warn_ambiguous_refs; | |
632 | if (arg[12] == '=') { | |
633 | if (!strcmp(arg + 13, "strict")) | |
634 | abbrev_ref_strict = 1; | |
635 | else if (!strcmp(arg + 13, "loose")) | |
636 | abbrev_ref_strict = 0; | |
637 | else | |
638 | die("unknown mode for %s", arg); | |
639 | } | |
640 | continue; | |
641 | } | |
960bba0d | 642 | if (!strcmp(arg, "--all")) { |
cb5d709f | 643 | for_each_ref(show_reference, NULL); |
960bba0d LT |
644 | continue; |
645 | } | |
59556548 | 646 | if (starts_with(arg, "--disambiguate=")) { |
957d7406 JH |
647 | for_each_abbrev(arg + 15, show_abbrev, NULL); |
648 | continue; | |
649 | } | |
ad3f9a71 LT |
650 | if (!strcmp(arg, "--bisect")) { |
651 | for_each_ref_in("refs/bisect/bad", show_reference, NULL); | |
652 | for_each_ref_in("refs/bisect/good", anti_reference, NULL); | |
653 | continue; | |
654 | } | |
59556548 | 655 | if (starts_with(arg, "--branches=")) { |
b09fe971 IL |
656 | for_each_glob_ref_in(show_reference, arg + 11, |
657 | "refs/heads/", NULL); | |
9dc01bf0 | 658 | clear_ref_exclusion(&ref_excludes); |
b09fe971 IL |
659 | continue; |
660 | } | |
a62be77f | 661 | if (!strcmp(arg, "--branches")) { |
cb5d709f | 662 | for_each_branch_ref(show_reference, NULL); |
9dc01bf0 | 663 | clear_ref_exclusion(&ref_excludes); |
a62be77f SE |
664 | continue; |
665 | } | |
59556548 | 666 | if (starts_with(arg, "--tags=")) { |
b09fe971 IL |
667 | for_each_glob_ref_in(show_reference, arg + 7, |
668 | "refs/tags/", NULL); | |
9dc01bf0 | 669 | clear_ref_exclusion(&ref_excludes); |
b09fe971 IL |
670 | continue; |
671 | } | |
a62be77f | 672 | if (!strcmp(arg, "--tags")) { |
cb5d709f | 673 | for_each_tag_ref(show_reference, NULL); |
9dc01bf0 | 674 | clear_ref_exclusion(&ref_excludes); |
a62be77f SE |
675 | continue; |
676 | } | |
59556548 | 677 | if (starts_with(arg, "--glob=")) { |
d08bae7e | 678 | for_each_glob_ref(show_reference, arg + 7, NULL); |
9dc01bf0 | 679 | clear_ref_exclusion(&ref_excludes); |
d08bae7e IL |
680 | continue; |
681 | } | |
59556548 | 682 | if (starts_with(arg, "--remotes=")) { |
b09fe971 IL |
683 | for_each_glob_ref_in(show_reference, arg + 10, |
684 | "refs/remotes/", NULL); | |
9dc01bf0 | 685 | clear_ref_exclusion(&ref_excludes); |
b09fe971 IL |
686 | continue; |
687 | } | |
a62be77f | 688 | if (!strcmp(arg, "--remotes")) { |
cb5d709f | 689 | for_each_remote_ref(show_reference, NULL); |
9dc01bf0 JH |
690 | clear_ref_exclusion(&ref_excludes); |
691 | continue; | |
692 | } | |
ad704485 | 693 | if (starts_with(arg, "--exclude=")) { |
9dc01bf0 | 694 | add_ref_exclusion(&ref_excludes, arg + 10); |
a62be77f SE |
695 | continue; |
696 | } | |
68889b41 JK |
697 | if (!strcmp(arg, "--local-env-vars")) { |
698 | int i; | |
699 | for (i = 0; local_repo_env[i]; i++) | |
700 | printf("%s\n", local_repo_env[i]); | |
701 | continue; | |
702 | } | |
7cceca5c SD |
703 | if (!strcmp(arg, "--show-toplevel")) { |
704 | const char *work_tree = get_git_work_tree(); | |
705 | if (work_tree) | |
706 | puts(work_tree); | |
707 | continue; | |
708 | } | |
d288a700 | 709 | if (!strcmp(arg, "--show-prefix")) { |
4866ccf0 JH |
710 | if (prefix) |
711 | puts(prefix); | |
658219f1 RL |
712 | else |
713 | putchar('\n'); | |
d288a700 LT |
714 | continue; |
715 | } | |
5f94c730 JH |
716 | if (!strcmp(arg, "--show-cdup")) { |
717 | const char *pfx = prefix; | |
e90fdc39 JS |
718 | if (!is_inside_work_tree()) { |
719 | const char *work_tree = | |
720 | get_git_work_tree(); | |
721 | if (work_tree) | |
722 | printf("%s\n", work_tree); | |
723 | continue; | |
724 | } | |
5f94c730 JH |
725 | while (pfx) { |
726 | pfx = strchr(pfx, '/'); | |
727 | if (pfx) { | |
728 | pfx++; | |
729 | printf("../"); | |
730 | } | |
731 | } | |
732 | putchar('\n'); | |
733 | continue; | |
734 | } | |
a8783eeb LT |
735 | if (!strcmp(arg, "--git-dir")) { |
736 | const char *gitdir = getenv(GIT_DIR_ENVIRONMENT); | |
737 | static char cwd[PATH_MAX]; | |
d06f15d9 | 738 | int len; |
a8783eeb LT |
739 | if (gitdir) { |
740 | puts(gitdir); | |
741 | continue; | |
742 | } | |
743 | if (!prefix) { | |
744 | puts(".git"); | |
745 | continue; | |
746 | } | |
747 | if (!getcwd(cwd, PATH_MAX)) | |
0721c314 | 748 | die_errno("unable to get current working directory"); |
d06f15d9 NTND |
749 | len = strlen(cwd); |
750 | printf("%s%s.git\n", cwd, len && cwd[len-1] != '/' ? "/" : ""); | |
a8783eeb LT |
751 | continue; |
752 | } | |
68889b41 | 753 | if (!strcmp(arg, "--resolve-git-dir")) { |
a43219f2 | 754 | const char *gitdir = argv[++i]; |
68889b41 | 755 | if (!gitdir) |
a43219f2 DS |
756 | die("--resolve-git-dir requires an argument"); |
757 | gitdir = resolve_gitdir(gitdir); | |
758 | if (!gitdir) | |
759 | die("not a gitdir '%s'", argv[i]); | |
68889b41 JK |
760 | puts(gitdir); |
761 | continue; | |
762 | } | |
6d9ba67b JS |
763 | if (!strcmp(arg, "--is-inside-git-dir")) { |
764 | printf("%s\n", is_inside_git_dir() ? "true" | |
765 | : "false"); | |
766 | continue; | |
767 | } | |
892c41b9 ML |
768 | if (!strcmp(arg, "--is-inside-work-tree")) { |
769 | printf("%s\n", is_inside_work_tree() ? "true" | |
770 | : "false"); | |
771 | continue; | |
772 | } | |
493c774e ML |
773 | if (!strcmp(arg, "--is-bare-repository")) { |
774 | printf("%s\n", is_bare_repository() ? "true" | |
775 | : "false"); | |
776 | continue; | |
777 | } | |
59556548 | 778 | if (starts_with(arg, "--since=")) { |
c1babb1d LT |
779 | show_datestring("--max-age=", arg+8); |
780 | continue; | |
781 | } | |
59556548 | 782 | if (starts_with(arg, "--after=")) { |
c1babb1d LT |
783 | show_datestring("--max-age=", arg+8); |
784 | continue; | |
785 | } | |
59556548 | 786 | if (starts_with(arg, "--before=")) { |
c1babb1d LT |
787 | show_datestring("--min-age=", arg+9); |
788 | continue; | |
789 | } | |
59556548 | 790 | if (starts_with(arg, "--until=")) { |
c1babb1d LT |
791 | show_datestring("--min-age=", arg+8); |
792 | continue; | |
793 | } | |
9523a4c2 | 794 | if (show_flag(arg) && verify) |
b1b35969 | 795 | die_no_single_rev(quiet); |
178cb243 LT |
796 | continue; |
797 | } | |
4866ccf0 JH |
798 | |
799 | /* Not a flag argument */ | |
3dd4e732 SB |
800 | if (try_difference(arg)) |
801 | continue; | |
2122f8b9 BS |
802 | if (try_parent_shorthands(arg)) |
803 | continue; | |
dfd1b749 CC |
804 | name = arg; |
805 | type = NORMAL; | |
806 | if (*arg == '^') { | |
807 | name++; | |
808 | type = REVERSED; | |
800644c5 | 809 | } |
dfd1b749 CC |
810 | if (!get_sha1(name, sha1)) { |
811 | if (verify) | |
812 | revs_count++; | |
813 | else | |
814 | show_rev(type, sha1, name); | |
800644c5 LT |
815 | continue; |
816 | } | |
75ecfce3 CC |
817 | if (verify) |
818 | die_no_single_rev(quiet); | |
14185673 JK |
819 | if (has_dashdash) |
820 | die("bad revision '%s'", arg); | |
9ad0a933 | 821 | as_is = 1; |
12b9d327 | 822 | if (!show_file(arg, output_prefix)) |
9ad0a933 | 823 | continue; |
023e37c3 | 824 | verify_filename(prefix, arg, 1); |
023d66ed | 825 | } |
dfd1b749 CC |
826 | if (verify) { |
827 | if (revs_count == 1) { | |
828 | show_rev(type, sha1, name); | |
829 | return 0; | |
830 | } else if (revs_count == 0 && show_default()) | |
831 | return 0; | |
b1b35969 | 832 | die_no_single_rev(quiet); |
dfd1b749 CC |
833 | } else |
834 | show_default(); | |
178cb243 LT |
835 | return 0; |
836 | } |