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baffc0e7 | 1 | #include "builtin.h" |
9f613ddd JH |
2 | #include "cache.h" |
3 | #include "refs.h" | |
4 | #include "object.h" | |
5 | #include "tag.h" | |
6 | #include "commit.h" | |
7 | #include "tree.h" | |
8 | #include "blob.h" | |
9 | #include "quote.h" | |
c3428da8 | 10 | #include "parse-options.h" |
8cae19d9 | 11 | #include "remote.h" |
9f613ddd JH |
12 | |
13 | /* Quoting styles */ | |
14 | #define QUOTE_NONE 0 | |
15 | #define QUOTE_SHELL 1 | |
16 | #define QUOTE_PERL 2 | |
c9ecf4f1 JS |
17 | #define QUOTE_PYTHON 4 |
18 | #define QUOTE_TCL 8 | |
9f613ddd JH |
19 | |
20 | typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type; | |
21 | ||
22 | struct atom_value { | |
23 | const char *s; | |
24 | unsigned long ul; /* used for sorting when not FIELD_STR */ | |
25 | }; | |
26 | ||
27 | struct ref_sort { | |
28 | struct ref_sort *next; | |
29 | int atom; /* index into used_atom array */ | |
30 | unsigned reverse : 1; | |
31 | }; | |
32 | ||
33 | struct refinfo { | |
34 | char *refname; | |
35 | unsigned char objectname[20]; | |
36 | struct atom_value *value; | |
37 | }; | |
38 | ||
39 | static struct { | |
40 | const char *name; | |
41 | cmp_type cmp_type; | |
42 | } valid_atom[] = { | |
43 | { "refname" }, | |
44 | { "objecttype" }, | |
45 | { "objectsize", FIELD_ULONG }, | |
46 | { "objectname" }, | |
47 | { "tree" }, | |
9e1a2acf | 48 | { "parent" }, |
9f613ddd JH |
49 | { "numparent", FIELD_ULONG }, |
50 | { "object" }, | |
51 | { "type" }, | |
52 | { "tag" }, | |
53 | { "author" }, | |
54 | { "authorname" }, | |
55 | { "authoremail" }, | |
56 | { "authordate", FIELD_TIME }, | |
57 | { "committer" }, | |
58 | { "committername" }, | |
59 | { "committeremail" }, | |
60 | { "committerdate", FIELD_TIME }, | |
61 | { "tagger" }, | |
62 | { "taggername" }, | |
63 | { "taggeremail" }, | |
64 | { "taggerdate", FIELD_TIME }, | |
3175aa1e JH |
65 | { "creator" }, |
66 | { "creatordate", FIELD_TIME }, | |
9f613ddd JH |
67 | { "subject" }, |
68 | { "body" }, | |
69 | { "contents" }, | |
8cae19d9 | 70 | { "upstream" }, |
9f613ddd JH |
71 | }; |
72 | ||
73 | /* | |
74 | * An atom is a valid field atom listed above, possibly prefixed with | |
75 | * a "*" to denote deref_tag(). | |
76 | * | |
77 | * We parse given format string and sort specifiers, and make a list | |
78 | * of properties that we need to extract out of objects. refinfo | |
79 | * structure will hold an array of values extracted that can be | |
80 | * indexed with the "atom number", which is an index into this | |
81 | * array. | |
82 | */ | |
83 | static const char **used_atom; | |
84 | static cmp_type *used_atom_type; | |
85 | static int used_atom_cnt, sort_atom_limit, need_tagged; | |
86 | ||
87 | /* | |
88 | * Used to parse format string and sort specifiers | |
89 | */ | |
90 | static int parse_atom(const char *atom, const char *ep) | |
91 | { | |
92 | const char *sp; | |
9f613ddd JH |
93 | int i, at; |
94 | ||
95 | sp = atom; | |
96 | if (*sp == '*' && sp < ep) | |
97 | sp++; /* deref */ | |
98 | if (ep <= sp) | |
99 | die("malformed field name: %.*s", (int)(ep-atom), atom); | |
100 | ||
101 | /* Do we have the atom already used elsewhere? */ | |
102 | for (i = 0; i < used_atom_cnt; i++) { | |
103 | int len = strlen(used_atom[i]); | |
104 | if (len == ep - atom && !memcmp(used_atom[i], atom, len)) | |
105 | return i; | |
106 | } | |
107 | ||
108 | /* Is the atom a valid one? */ | |
109 | for (i = 0; i < ARRAY_SIZE(valid_atom); i++) { | |
110 | int len = strlen(valid_atom[i].name); | |
b64265ca AP |
111 | /* |
112 | * If the atom name has a colon, strip it and everything after | |
113 | * it off - it specifies the format for this entry, and | |
114 | * shouldn't be used for checking against the valid_atom | |
115 | * table. | |
116 | */ | |
117 | const char *formatp = strchr(sp, ':'); | |
070f6918 | 118 | if (!formatp || ep < formatp) |
b64265ca AP |
119 | formatp = ep; |
120 | if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len)) | |
9f613ddd JH |
121 | break; |
122 | } | |
123 | ||
124 | if (ARRAY_SIZE(valid_atom) <= i) | |
125 | die("unknown field name: %.*s", (int)(ep-atom), atom); | |
126 | ||
127 | /* Add it in, including the deref prefix */ | |
128 | at = used_atom_cnt; | |
129 | used_atom_cnt++; | |
130 | used_atom = xrealloc(used_atom, | |
131 | (sizeof *used_atom) * used_atom_cnt); | |
132 | used_atom_type = xrealloc(used_atom_type, | |
133 | (sizeof(*used_atom_type) * used_atom_cnt)); | |
182af834 | 134 | used_atom[at] = xmemdupz(atom, ep - atom); |
9f613ddd JH |
135 | used_atom_type[at] = valid_atom[i].cmp_type; |
136 | return at; | |
137 | } | |
138 | ||
139 | /* | |
140 | * In a format string, find the next occurrence of %(atom). | |
141 | */ | |
142 | static const char *find_next(const char *cp) | |
143 | { | |
144 | while (*cp) { | |
145 | if (*cp == '%') { | |
146 | /* %( is the start of an atom; | |
3dff5379 | 147 | * %% is a quoted per-cent. |
9f613ddd JH |
148 | */ |
149 | if (cp[1] == '(') | |
150 | return cp; | |
151 | else if (cp[1] == '%') | |
152 | cp++; /* skip over two % */ | |
153 | /* otherwise this is a singleton, literal % */ | |
154 | } | |
155 | cp++; | |
156 | } | |
157 | return NULL; | |
158 | } | |
159 | ||
160 | /* | |
161 | * Make sure the format string is well formed, and parse out | |
162 | * the used atoms. | |
163 | */ | |
c3428da8 | 164 | static int verify_format(const char *format) |
9f613ddd JH |
165 | { |
166 | const char *cp, *sp; | |
167 | for (cp = format; *cp && (sp = find_next(cp)); ) { | |
168 | const char *ep = strchr(sp, ')'); | |
169 | if (!ep) | |
8e0fbe67 | 170 | return error("malformed format string %s", sp); |
9f613ddd JH |
171 | /* sp points at "%(" and ep points at the closing ")" */ |
172 | parse_atom(sp + 2, ep); | |
173 | cp = ep + 1; | |
174 | } | |
c3428da8 | 175 | return 0; |
9f613ddd JH |
176 | } |
177 | ||
178 | /* | |
179 | * Given an object name, read the object data and size, and return a | |
180 | * "struct object". If the object data we are returning is also borrowed | |
181 | * by the "struct object" representation, set *eaten as well---it is a | |
182 | * signal from parse_object_buffer to us not to free the buffer. | |
183 | */ | |
184 | static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten) | |
185 | { | |
21666f1a NP |
186 | enum object_type type; |
187 | void *buf = read_sha1_file(sha1, &type, sz); | |
9f613ddd JH |
188 | |
189 | if (buf) | |
190 | *obj = parse_object_buffer(sha1, type, *sz, buf, eaten); | |
191 | else | |
192 | *obj = NULL; | |
193 | return buf; | |
194 | } | |
195 | ||
196 | /* See grab_values */ | |
197 | static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
198 | { | |
199 | int i; | |
200 | ||
201 | for (i = 0; i < used_atom_cnt; i++) { | |
202 | const char *name = used_atom[i]; | |
203 | struct atom_value *v = &val[i]; | |
204 | if (!!deref != (*name == '*')) | |
205 | continue; | |
206 | if (deref) | |
207 | name++; | |
208 | if (!strcmp(name, "objecttype")) | |
df843662 | 209 | v->s = typename(obj->type); |
9f613ddd JH |
210 | else if (!strcmp(name, "objectsize")) { |
211 | char *s = xmalloc(40); | |
212 | sprintf(s, "%lu", sz); | |
213 | v->ul = sz; | |
214 | v->s = s; | |
215 | } | |
216 | else if (!strcmp(name, "objectname")) { | |
217 | char *s = xmalloc(41); | |
218 | strcpy(s, sha1_to_hex(obj->sha1)); | |
219 | v->s = s; | |
220 | } | |
221 | } | |
222 | } | |
223 | ||
224 | /* See grab_values */ | |
225 | static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
226 | { | |
227 | int i; | |
228 | struct tag *tag = (struct tag *) obj; | |
229 | ||
230 | for (i = 0; i < used_atom_cnt; i++) { | |
231 | const char *name = used_atom[i]; | |
232 | struct atom_value *v = &val[i]; | |
233 | if (!!deref != (*name == '*')) | |
234 | continue; | |
235 | if (deref) | |
236 | name++; | |
237 | if (!strcmp(name, "tag")) | |
238 | v->s = tag->tag; | |
87412ec1 JK |
239 | else if (!strcmp(name, "type") && tag->tagged) |
240 | v->s = typename(tag->tagged->type); | |
241 | else if (!strcmp(name, "object") && tag->tagged) { | |
242 | char *s = xmalloc(41); | |
243 | strcpy(s, sha1_to_hex(tag->tagged->sha1)); | |
244 | v->s = s; | |
245 | } | |
9f613ddd JH |
246 | } |
247 | } | |
248 | ||
249 | static int num_parents(struct commit *commit) | |
250 | { | |
251 | struct commit_list *parents; | |
252 | int i; | |
253 | ||
254 | for (i = 0, parents = commit->parents; | |
255 | parents; | |
256 | parents = parents->next) | |
257 | i++; | |
258 | return i; | |
259 | } | |
260 | ||
261 | /* See grab_values */ | |
262 | static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
263 | { | |
264 | int i; | |
265 | struct commit *commit = (struct commit *) obj; | |
266 | ||
267 | for (i = 0; i < used_atom_cnt; i++) { | |
268 | const char *name = used_atom[i]; | |
269 | struct atom_value *v = &val[i]; | |
270 | if (!!deref != (*name == '*')) | |
271 | continue; | |
272 | if (deref) | |
273 | name++; | |
274 | if (!strcmp(name, "tree")) { | |
275 | char *s = xmalloc(41); | |
276 | strcpy(s, sha1_to_hex(commit->tree->object.sha1)); | |
277 | v->s = s; | |
278 | } | |
279 | if (!strcmp(name, "numparent")) { | |
280 | char *s = xmalloc(40); | |
9e1a2acf | 281 | v->ul = num_parents(commit); |
9f613ddd JH |
282 | sprintf(s, "%lu", v->ul); |
283 | v->s = s; | |
9f613ddd JH |
284 | } |
285 | else if (!strcmp(name, "parent")) { | |
286 | int num = num_parents(commit); | |
287 | int i; | |
288 | struct commit_list *parents; | |
9e1a2acf | 289 | char *s = xmalloc(41 * num + 1); |
9f613ddd JH |
290 | v->s = s; |
291 | for (i = 0, parents = commit->parents; | |
292 | parents; | |
9e1a2acf | 293 | parents = parents->next, i = i + 41) { |
9f613ddd JH |
294 | struct commit *parent = parents->item; |
295 | strcpy(s+i, sha1_to_hex(parent->object.sha1)); | |
296 | if (parents->next) | |
297 | s[i+40] = ' '; | |
298 | } | |
9e1a2acf JH |
299 | if (!i) |
300 | *s = '\0'; | |
9f613ddd JH |
301 | } |
302 | } | |
303 | } | |
304 | ||
305 | static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz) | |
306 | { | |
307 | const char *eol; | |
308 | while (*buf) { | |
309 | if (!strncmp(buf, who, wholen) && | |
310 | buf[wholen] == ' ') | |
311 | return buf + wholen + 1; | |
312 | eol = strchr(buf, '\n'); | |
313 | if (!eol) | |
314 | return ""; | |
315 | eol++; | |
a74fa110 | 316 | if (*eol == '\n') |
9f613ddd JH |
317 | return ""; /* end of header */ |
318 | buf = eol; | |
319 | } | |
320 | return ""; | |
321 | } | |
322 | ||
3a55602e | 323 | static const char *copy_line(const char *buf) |
9f613ddd | 324 | { |
94e02e7f | 325 | const char *eol = strchrnul(buf, '\n'); |
182af834 | 326 | return xmemdupz(buf, eol - buf); |
9f613ddd JH |
327 | } |
328 | ||
3a55602e | 329 | static const char *copy_name(const char *buf) |
9f613ddd | 330 | { |
182af834 | 331 | const char *cp; |
6b30852d | 332 | for (cp = buf; *cp && *cp != '\n'; cp++) { |
182af834 PH |
333 | if (!strncmp(cp, " <", 2)) |
334 | return xmemdupz(buf, cp - buf); | |
335 | } | |
336 | return ""; | |
9f613ddd JH |
337 | } |
338 | ||
3a55602e | 339 | static const char *copy_email(const char *buf) |
9f613ddd JH |
340 | { |
341 | const char *email = strchr(buf, '<'); | |
e64c1b00 JK |
342 | const char *eoemail; |
343 | if (!email) | |
344 | return ""; | |
345 | eoemail = strchr(email, '>'); | |
346 | if (!eoemail) | |
9f613ddd | 347 | return ""; |
182af834 | 348 | return xmemdupz(email, eoemail + 1 - email); |
9f613ddd JH |
349 | } |
350 | ||
d392e712 | 351 | static void grab_date(const char *buf, struct atom_value *v, const char *atomname) |
9f613ddd JH |
352 | { |
353 | const char *eoemail = strstr(buf, "> "); | |
354 | char *zone; | |
355 | unsigned long timestamp; | |
356 | long tz; | |
d392e712 AP |
357 | enum date_mode date_mode = DATE_NORMAL; |
358 | const char *formatp; | |
359 | ||
360 | /* | |
361 | * We got here because atomname ends in "date" or "date<something>"; | |
362 | * it's not possible that <something> is not ":<format>" because | |
363 | * parse_atom() wouldn't have allowed it, so we can assume that no | |
364 | * ":" means no format is specified, and use the default. | |
365 | */ | |
366 | formatp = strchr(atomname, ':'); | |
367 | if (formatp != NULL) { | |
368 | formatp++; | |
369 | date_mode = parse_date_format(formatp); | |
370 | } | |
9f613ddd JH |
371 | |
372 | if (!eoemail) | |
373 | goto bad; | |
374 | timestamp = strtoul(eoemail + 2, &zone, 10); | |
375 | if (timestamp == ULONG_MAX) | |
376 | goto bad; | |
377 | tz = strtol(zone, NULL, 10); | |
378 | if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE) | |
379 | goto bad; | |
d392e712 | 380 | v->s = xstrdup(show_date(timestamp, tz, date_mode)); |
9f613ddd JH |
381 | v->ul = timestamp; |
382 | return; | |
383 | bad: | |
384 | v->s = ""; | |
385 | v->ul = 0; | |
386 | } | |
387 | ||
388 | /* See grab_values */ | |
389 | static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
390 | { | |
391 | int i; | |
392 | int wholen = strlen(who); | |
393 | const char *wholine = NULL; | |
394 | ||
395 | for (i = 0; i < used_atom_cnt; i++) { | |
396 | const char *name = used_atom[i]; | |
397 | struct atom_value *v = &val[i]; | |
398 | if (!!deref != (*name == '*')) | |
399 | continue; | |
400 | if (deref) | |
401 | name++; | |
402 | if (strncmp(who, name, wholen)) | |
403 | continue; | |
404 | if (name[wholen] != 0 && | |
405 | strcmp(name + wholen, "name") && | |
406 | strcmp(name + wholen, "email") && | |
d392e712 | 407 | prefixcmp(name + wholen, "date")) |
9f613ddd JH |
408 | continue; |
409 | if (!wholine) | |
410 | wholine = find_wholine(who, wholen, buf, sz); | |
411 | if (!wholine) | |
412 | return; /* no point looking for it */ | |
413 | if (name[wholen] == 0) | |
414 | v->s = copy_line(wholine); | |
415 | else if (!strcmp(name + wholen, "name")) | |
416 | v->s = copy_name(wholine); | |
417 | else if (!strcmp(name + wholen, "email")) | |
418 | v->s = copy_email(wholine); | |
d392e712 AP |
419 | else if (!prefixcmp(name + wholen, "date")) |
420 | grab_date(wholine, v, name); | |
9f613ddd | 421 | } |
3175aa1e JH |
422 | |
423 | /* For a tag or a commit object, if "creator" or "creatordate" is | |
424 | * requested, do something special. | |
425 | */ | |
426 | if (strcmp(who, "tagger") && strcmp(who, "committer")) | |
427 | return; /* "author" for commit object is not wanted */ | |
428 | if (!wholine) | |
429 | wholine = find_wholine(who, wholen, buf, sz); | |
430 | if (!wholine) | |
431 | return; | |
432 | for (i = 0; i < used_atom_cnt; i++) { | |
433 | const char *name = used_atom[i]; | |
434 | struct atom_value *v = &val[i]; | |
435 | if (!!deref != (*name == '*')) | |
436 | continue; | |
437 | if (deref) | |
438 | name++; | |
439 | ||
d392e712 AP |
440 | if (!prefixcmp(name, "creatordate")) |
441 | grab_date(wholine, v, name); | |
3175aa1e JH |
442 | else if (!strcmp(name, "creator")) |
443 | v->s = copy_line(wholine); | |
444 | } | |
9f613ddd JH |
445 | } |
446 | ||
447 | static void find_subpos(const char *buf, unsigned long sz, const char **sub, const char **body) | |
448 | { | |
449 | while (*buf) { | |
450 | const char *eol = strchr(buf, '\n'); | |
451 | if (!eol) | |
452 | return; | |
453 | if (eol[1] == '\n') { | |
454 | buf = eol + 1; | |
455 | break; /* found end of header */ | |
456 | } | |
457 | buf = eol + 1; | |
458 | } | |
459 | while (*buf == '\n') | |
460 | buf++; | |
461 | if (!*buf) | |
462 | return; | |
463 | *sub = buf; /* first non-empty line */ | |
464 | buf = strchr(buf, '\n'); | |
e276c26b JH |
465 | if (!buf) { |
466 | *body = ""; | |
9f613ddd | 467 | return; /* no body */ |
e276c26b | 468 | } |
9f613ddd JH |
469 | while (*buf == '\n') |
470 | buf++; /* skip blank between subject and body */ | |
471 | *body = buf; | |
472 | } | |
473 | ||
474 | /* See grab_values */ | |
475 | static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
476 | { | |
477 | int i; | |
478 | const char *subpos = NULL, *bodypos = NULL; | |
479 | ||
480 | for (i = 0; i < used_atom_cnt; i++) { | |
481 | const char *name = used_atom[i]; | |
482 | struct atom_value *v = &val[i]; | |
483 | if (!!deref != (*name == '*')) | |
484 | continue; | |
485 | if (deref) | |
486 | name++; | |
487 | if (strcmp(name, "subject") && | |
488 | strcmp(name, "body") && | |
489 | strcmp(name, "contents")) | |
490 | continue; | |
491 | if (!subpos) | |
492 | find_subpos(buf, sz, &subpos, &bodypos); | |
493 | if (!subpos) | |
494 | return; | |
495 | ||
496 | if (!strcmp(name, "subject")) | |
497 | v->s = copy_line(subpos); | |
498 | else if (!strcmp(name, "body")) | |
f8290630 | 499 | v->s = xstrdup(bodypos); |
9f613ddd | 500 | else if (!strcmp(name, "contents")) |
f8290630 | 501 | v->s = xstrdup(subpos); |
9f613ddd JH |
502 | } |
503 | } | |
504 | ||
505 | /* We want to have empty print-string for field requests | |
506 | * that do not apply (e.g. "authordate" for a tag object) | |
507 | */ | |
508 | static void fill_missing_values(struct atom_value *val) | |
509 | { | |
510 | int i; | |
511 | for (i = 0; i < used_atom_cnt; i++) { | |
512 | struct atom_value *v = &val[i]; | |
513 | if (v->s == NULL) | |
514 | v->s = ""; | |
515 | } | |
516 | } | |
517 | ||
518 | /* | |
519 | * val is a list of atom_value to hold returned values. Extract | |
520 | * the values for atoms in used_atom array out of (obj, buf, sz). | |
521 | * when deref is false, (obj, buf, sz) is the object that is | |
522 | * pointed at by the ref itself; otherwise it is the object the | |
523 | * ref (which is a tag) refers to. | |
524 | */ | |
525 | static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
526 | { | |
527 | grab_common_values(val, deref, obj, buf, sz); | |
528 | switch (obj->type) { | |
529 | case OBJ_TAG: | |
530 | grab_tag_values(val, deref, obj, buf, sz); | |
531 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
532 | grab_person("tagger", val, deref, obj, buf, sz); | |
533 | break; | |
534 | case OBJ_COMMIT: | |
535 | grab_commit_values(val, deref, obj, buf, sz); | |
536 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
537 | grab_person("author", val, deref, obj, buf, sz); | |
538 | grab_person("committer", val, deref, obj, buf, sz); | |
539 | break; | |
540 | case OBJ_TREE: | |
541 | // grab_tree_values(val, deref, obj, buf, sz); | |
542 | break; | |
543 | case OBJ_BLOB: | |
544 | // grab_blob_values(val, deref, obj, buf, sz); | |
545 | break; | |
546 | default: | |
547 | die("Eh? Object of type %d?", obj->type); | |
548 | } | |
549 | } | |
550 | ||
551 | /* | |
552 | * Parse the object referred by ref, and grab needed value. | |
553 | */ | |
554 | static void populate_value(struct refinfo *ref) | |
555 | { | |
556 | void *buf; | |
557 | struct object *obj; | |
558 | int eaten, i; | |
559 | unsigned long size; | |
560 | const unsigned char *tagged; | |
561 | ||
562 | ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt); | |
563 | ||
9f613ddd JH |
564 | /* Fill in specials first */ |
565 | for (i = 0; i < used_atom_cnt; i++) { | |
566 | const char *name = used_atom[i]; | |
567 | struct atom_value *v = &ref->value[i]; | |
7d66f21a | 568 | int deref = 0; |
8db9a4b8 JK |
569 | const char *refname; |
570 | const char *formatp; | |
571 | ||
7d66f21a BW |
572 | if (*name == '*') { |
573 | deref = 1; | |
574 | name++; | |
575 | } | |
7d66f21a | 576 | |
8db9a4b8 JK |
577 | if (!prefixcmp(name, "refname")) |
578 | refname = ref->refname; | |
eeefa7c9 | 579 | else if (!prefixcmp(name, "upstream")) { |
8cae19d9 JK |
580 | struct branch *branch; |
581 | /* only local branches may have an upstream */ | |
582 | if (prefixcmp(ref->refname, "refs/heads/")) | |
583 | continue; | |
584 | branch = branch_get(ref->refname + 11); | |
585 | ||
586 | if (!branch || !branch->merge || !branch->merge[0] || | |
587 | !branch->merge[0]->dst) | |
588 | continue; | |
589 | refname = branch->merge[0]->dst; | |
590 | } | |
8db9a4b8 JK |
591 | else |
592 | continue; | |
593 | ||
594 | formatp = strchr(name, ':'); | |
595 | /* look for "short" refname format */ | |
596 | if (formatp) { | |
597 | formatp++; | |
598 | if (!strcmp(formatp, "short")) | |
2bb98169 BW |
599 | refname = shorten_unambiguous_ref(refname, |
600 | warn_ambiguous_refs); | |
8db9a4b8 JK |
601 | else |
602 | die("unknown %.*s format %s", | |
603 | (int)(formatp - name), name, formatp); | |
604 | } | |
605 | ||
606 | if (!deref) | |
607 | v->s = refname; | |
608 | else { | |
609 | int len = strlen(refname); | |
610 | char *s = xmalloc(len + 4); | |
611 | sprintf(s, "%s^{}", refname); | |
612 | v->s = s; | |
9f613ddd JH |
613 | } |
614 | } | |
615 | ||
b7dd2d20 AK |
616 | for (i = 0; i < used_atom_cnt; i++) { |
617 | struct atom_value *v = &ref->value[i]; | |
618 | if (v->s == NULL) | |
619 | goto need_obj; | |
620 | } | |
621 | return; | |
622 | ||
623 | need_obj: | |
624 | buf = get_obj(ref->objectname, &obj, &size, &eaten); | |
625 | if (!buf) | |
626 | die("missing object %s for %s", | |
627 | sha1_to_hex(ref->objectname), ref->refname); | |
628 | if (!obj) | |
629 | die("parse_object_buffer failed on %s for %s", | |
630 | sha1_to_hex(ref->objectname), ref->refname); | |
631 | ||
9f613ddd JH |
632 | grab_values(ref->value, 0, obj, buf, size); |
633 | if (!eaten) | |
634 | free(buf); | |
635 | ||
636 | /* If there is no atom that wants to know about tagged | |
637 | * object, we are done. | |
638 | */ | |
639 | if (!need_tagged || (obj->type != OBJ_TAG)) | |
640 | return; | |
641 | ||
642 | /* If it is a tag object, see if we use a value that derefs | |
643 | * the object, and if we do grab the object it refers to. | |
644 | */ | |
645 | tagged = ((struct tag *)obj)->tagged->sha1; | |
646 | ||
647 | /* NEEDSWORK: This derefs tag only once, which | |
648 | * is good to deal with chains of trust, but | |
649 | * is not consistent with what deref_tag() does | |
650 | * which peels the onion to the core. | |
651 | */ | |
652 | buf = get_obj(tagged, &obj, &size, &eaten); | |
653 | if (!buf) | |
654 | die("missing object %s for %s", | |
655 | sha1_to_hex(tagged), ref->refname); | |
656 | if (!obj) | |
657 | die("parse_object_buffer failed on %s for %s", | |
658 | sha1_to_hex(tagged), ref->refname); | |
659 | grab_values(ref->value, 1, obj, buf, size); | |
660 | if (!eaten) | |
661 | free(buf); | |
662 | } | |
663 | ||
664 | /* | |
665 | * Given a ref, return the value for the atom. This lazily gets value | |
666 | * out of the object by calling populate value. | |
667 | */ | |
668 | static void get_value(struct refinfo *ref, int atom, struct atom_value **v) | |
669 | { | |
670 | if (!ref->value) { | |
671 | populate_value(ref); | |
672 | fill_missing_values(ref->value); | |
673 | } | |
674 | *v = &ref->value[atom]; | |
675 | } | |
676 | ||
340adb8b JH |
677 | struct grab_ref_cbdata { |
678 | struct refinfo **grab_array; | |
679 | const char **grab_pattern; | |
680 | int grab_cnt; | |
681 | }; | |
9f613ddd JH |
682 | |
683 | /* | |
684 | * A call-back given to for_each_ref(). It is unfortunate that we | |
685 | * need to use global variables to pass extra information to this | |
686 | * function. | |
687 | */ | |
340adb8b | 688 | static int grab_single_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
9f613ddd | 689 | { |
340adb8b | 690 | struct grab_ref_cbdata *cb = cb_data; |
9f613ddd JH |
691 | struct refinfo *ref; |
692 | int cnt; | |
693 | ||
340adb8b | 694 | if (*cb->grab_pattern) { |
9f613ddd JH |
695 | const char **pattern; |
696 | int namelen = strlen(refname); | |
340adb8b | 697 | for (pattern = cb->grab_pattern; *pattern; pattern++) { |
9f613ddd JH |
698 | const char *p = *pattern; |
699 | int plen = strlen(p); | |
700 | ||
701 | if ((plen <= namelen) && | |
702 | !strncmp(refname, p, plen) && | |
703 | (refname[plen] == '\0' || | |
114ef908 BS |
704 | refname[plen] == '/' || |
705 | p[plen-1] == '/')) | |
9f613ddd JH |
706 | break; |
707 | if (!fnmatch(p, refname, FNM_PATHNAME)) | |
708 | break; | |
709 | } | |
710 | if (!*pattern) | |
711 | return 0; | |
712 | } | |
713 | ||
714 | /* We do not open the object yet; sort may only need refname | |
715 | * to do its job and the resulting list may yet to be pruned | |
716 | * by maxcount logic. | |
717 | */ | |
718 | ref = xcalloc(1, sizeof(*ref)); | |
719 | ref->refname = xstrdup(refname); | |
720 | hashcpy(ref->objectname, sha1); | |
721 | ||
340adb8b JH |
722 | cnt = cb->grab_cnt; |
723 | cb->grab_array = xrealloc(cb->grab_array, | |
724 | sizeof(*cb->grab_array) * (cnt + 1)); | |
725 | cb->grab_array[cnt++] = ref; | |
726 | cb->grab_cnt = cnt; | |
9f613ddd JH |
727 | return 0; |
728 | } | |
729 | ||
9f613ddd JH |
730 | static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b) |
731 | { | |
732 | struct atom_value *va, *vb; | |
733 | int cmp; | |
734 | cmp_type cmp_type = used_atom_type[s->atom]; | |
735 | ||
736 | get_value(a, s->atom, &va); | |
737 | get_value(b, s->atom, &vb); | |
738 | switch (cmp_type) { | |
739 | case FIELD_STR: | |
740 | cmp = strcmp(va->s, vb->s); | |
741 | break; | |
742 | default: | |
743 | if (va->ul < vb->ul) | |
744 | cmp = -1; | |
745 | else if (va->ul == vb->ul) | |
746 | cmp = 0; | |
747 | else | |
748 | cmp = 1; | |
749 | break; | |
750 | } | |
751 | return (s->reverse) ? -cmp : cmp; | |
752 | } | |
753 | ||
754 | static struct ref_sort *ref_sort; | |
755 | static int compare_refs(const void *a_, const void *b_) | |
756 | { | |
757 | struct refinfo *a = *((struct refinfo **)a_); | |
758 | struct refinfo *b = *((struct refinfo **)b_); | |
759 | struct ref_sort *s; | |
760 | ||
761 | for (s = ref_sort; s; s = s->next) { | |
762 | int cmp = cmp_ref_sort(s, a, b); | |
763 | if (cmp) | |
764 | return cmp; | |
765 | } | |
766 | return 0; | |
767 | } | |
768 | ||
769 | static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs) | |
770 | { | |
771 | ref_sort = sort; | |
772 | qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs); | |
773 | } | |
774 | ||
775 | static void print_value(struct refinfo *ref, int atom, int quote_style) | |
776 | { | |
777 | struct atom_value *v; | |
778 | get_value(ref, atom, &v); | |
779 | switch (quote_style) { | |
780 | case QUOTE_NONE: | |
781 | fputs(v->s, stdout); | |
782 | break; | |
783 | case QUOTE_SHELL: | |
784 | sq_quote_print(stdout, v->s); | |
785 | break; | |
786 | case QUOTE_PERL: | |
787 | perl_quote_print(stdout, v->s); | |
788 | break; | |
789 | case QUOTE_PYTHON: | |
790 | python_quote_print(stdout, v->s); | |
791 | break; | |
5558e55c SP |
792 | case QUOTE_TCL: |
793 | tcl_quote_print(stdout, v->s); | |
794 | break; | |
9f613ddd JH |
795 | } |
796 | } | |
797 | ||
798 | static int hex1(char ch) | |
799 | { | |
800 | if ('0' <= ch && ch <= '9') | |
801 | return ch - '0'; | |
802 | else if ('a' <= ch && ch <= 'f') | |
803 | return ch - 'a' + 10; | |
804 | else if ('A' <= ch && ch <= 'F') | |
805 | return ch - 'A' + 10; | |
806 | return -1; | |
807 | } | |
808 | static int hex2(const char *cp) | |
809 | { | |
810 | if (cp[0] && cp[1]) | |
811 | return (hex1(cp[0]) << 4) | hex1(cp[1]); | |
812 | else | |
813 | return -1; | |
814 | } | |
815 | ||
816 | static void emit(const char *cp, const char *ep) | |
817 | { | |
818 | while (*cp && (!ep || cp < ep)) { | |
819 | if (*cp == '%') { | |
820 | if (cp[1] == '%') | |
821 | cp++; | |
822 | else { | |
823 | int ch = hex2(cp + 1); | |
824 | if (0 <= ch) { | |
825 | putchar(ch); | |
826 | cp += 3; | |
827 | continue; | |
828 | } | |
829 | } | |
830 | } | |
831 | putchar(*cp); | |
832 | cp++; | |
833 | } | |
834 | } | |
835 | ||
836 | static void show_ref(struct refinfo *info, const char *format, int quote_style) | |
837 | { | |
838 | const char *cp, *sp, *ep; | |
839 | ||
840 | for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) { | |
841 | ep = strchr(sp, ')'); | |
842 | if (cp < sp) | |
843 | emit(cp, sp); | |
844 | print_value(info, parse_atom(sp + 2, ep), quote_style); | |
845 | } | |
846 | if (*cp) { | |
847 | sp = cp + strlen(cp); | |
848 | emit(cp, sp); | |
849 | } | |
850 | putchar('\n'); | |
851 | } | |
852 | ||
853 | static struct ref_sort *default_sort(void) | |
854 | { | |
855 | static const char cstr_name[] = "refname"; | |
856 | ||
857 | struct ref_sort *sort = xcalloc(1, sizeof(*sort)); | |
858 | ||
859 | sort->next = NULL; | |
860 | sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name)); | |
861 | return sort; | |
862 | } | |
863 | ||
186458b1 | 864 | static int opt_parse_sort(const struct option *opt, const char *arg, int unset) |
c3428da8 PH |
865 | { |
866 | struct ref_sort **sort_tail = opt->value; | |
867 | struct ref_sort *s; | |
868 | int len; | |
869 | ||
870 | if (!arg) /* should --no-sort void the list ? */ | |
871 | return -1; | |
872 | ||
873 | *sort_tail = s = xcalloc(1, sizeof(*s)); | |
c3428da8 PH |
874 | |
875 | if (*arg == '-') { | |
876 | s->reverse = 1; | |
877 | arg++; | |
878 | } | |
879 | len = strlen(arg); | |
880 | s->atom = parse_atom(arg, arg+len); | |
881 | return 0; | |
882 | } | |
883 | ||
884 | static char const * const for_each_ref_usage[] = { | |
1b1dd23f | 885 | "git for-each-ref [options] [<pattern>]", |
c3428da8 PH |
886 | NULL |
887 | }; | |
888 | ||
889 | int cmd_for_each_ref(int argc, const char **argv, const char *prefix) | |
9f613ddd JH |
890 | { |
891 | int i, num_refs; | |
c3428da8 | 892 | const char *format = "%(objectname) %(objecttype)\t%(refname)"; |
9f613ddd | 893 | struct ref_sort *sort = NULL, **sort_tail = &sort; |
9fac800c | 894 | int maxcount = 0, quote_style = 0; |
9f613ddd | 895 | struct refinfo **refs; |
340adb8b | 896 | struct grab_ref_cbdata cbdata; |
9f613ddd | 897 | |
c3428da8 | 898 | struct option opts[] = { |
9fac800c PH |
899 | OPT_BIT('s', "shell", "e_style, |
900 | "quote placeholders suitably for shells", QUOTE_SHELL), | |
901 | OPT_BIT('p', "perl", "e_style, | |
902 | "quote placeholders suitably for perl", QUOTE_PERL), | |
903 | OPT_BIT(0 , "python", "e_style, | |
904 | "quote placeholders suitably for python", QUOTE_PYTHON), | |
905 | OPT_BIT(0 , "tcl", "e_style, | |
906 | "quote placeholders suitably for tcl", QUOTE_TCL), | |
c3428da8 PH |
907 | |
908 | OPT_GROUP(""), | |
909 | OPT_INTEGER( 0 , "count", &maxcount, "show only <n> matched refs"), | |
910 | OPT_STRING( 0 , "format", &format, "format", "format to use for the output"), | |
c899a57c | 911 | OPT_CALLBACK(0 , "sort", sort_tail, "key", |
c3428da8 PH |
912 | "field name to sort on", &opt_parse_sort), |
913 | OPT_END(), | |
914 | }; | |
915 | ||
37782920 | 916 | parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0); |
c3428da8 PH |
917 | if (maxcount < 0) { |
918 | error("invalid --count argument: `%d'", maxcount); | |
919 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd | 920 | } |
9fac800c | 921 | if (HAS_MULTI_BITS(quote_style)) { |
c9ecf4f1 | 922 | error("more than one quoting style?"); |
c3428da8 PH |
923 | usage_with_options(for_each_ref_usage, opts); |
924 | } | |
925 | if (verify_format(format)) | |
926 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd JH |
927 | |
928 | if (!sort) | |
929 | sort = default_sort(); | |
930 | sort_atom_limit = used_atom_cnt; | |
9f613ddd | 931 | |
2bb98169 BW |
932 | /* for warn_ambiguous_refs */ |
933 | git_config(git_default_config, NULL); | |
934 | ||
340adb8b | 935 | memset(&cbdata, 0, sizeof(cbdata)); |
c3428da8 | 936 | cbdata.grab_pattern = argv; |
b7dd2d20 | 937 | for_each_rawref(grab_single_ref, &cbdata); |
340adb8b JH |
938 | refs = cbdata.grab_array; |
939 | num_refs = cbdata.grab_cnt; | |
9f613ddd JH |
940 | |
941 | for (i = 0; i < used_atom_cnt; i++) { | |
942 | if (used_atom[i][0] == '*') { | |
943 | need_tagged = 1; | |
944 | break; | |
945 | } | |
946 | } | |
947 | ||
948 | sort_refs(sort, refs, num_refs); | |
949 | ||
950 | if (!maxcount || num_refs < maxcount) | |
951 | maxcount = num_refs; | |
952 | for (i = 0; i < maxcount; i++) | |
953 | show_ref(refs[i], format, quote_style); | |
954 | return 0; | |
955 | } |