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Commit | Line | Data |
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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, '<'); | |
342 | const char *eoemail = strchr(email, '>'); | |
9f613ddd JH |
343 | if (!email || !eoemail) |
344 | return ""; | |
182af834 | 345 | return xmemdupz(email, eoemail + 1 - email); |
9f613ddd JH |
346 | } |
347 | ||
d392e712 | 348 | static void grab_date(const char *buf, struct atom_value *v, const char *atomname) |
9f613ddd JH |
349 | { |
350 | const char *eoemail = strstr(buf, "> "); | |
351 | char *zone; | |
352 | unsigned long timestamp; | |
353 | long tz; | |
d392e712 AP |
354 | enum date_mode date_mode = DATE_NORMAL; |
355 | const char *formatp; | |
356 | ||
357 | /* | |
358 | * We got here because atomname ends in "date" or "date<something>"; | |
359 | * it's not possible that <something> is not ":<format>" because | |
360 | * parse_atom() wouldn't have allowed it, so we can assume that no | |
361 | * ":" means no format is specified, and use the default. | |
362 | */ | |
363 | formatp = strchr(atomname, ':'); | |
364 | if (formatp != NULL) { | |
365 | formatp++; | |
366 | date_mode = parse_date_format(formatp); | |
367 | } | |
9f613ddd JH |
368 | |
369 | if (!eoemail) | |
370 | goto bad; | |
371 | timestamp = strtoul(eoemail + 2, &zone, 10); | |
372 | if (timestamp == ULONG_MAX) | |
373 | goto bad; | |
374 | tz = strtol(zone, NULL, 10); | |
375 | if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE) | |
376 | goto bad; | |
d392e712 | 377 | v->s = xstrdup(show_date(timestamp, tz, date_mode)); |
9f613ddd JH |
378 | v->ul = timestamp; |
379 | return; | |
380 | bad: | |
381 | v->s = ""; | |
382 | v->ul = 0; | |
383 | } | |
384 | ||
385 | /* See grab_values */ | |
386 | static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
387 | { | |
388 | int i; | |
389 | int wholen = strlen(who); | |
390 | const char *wholine = NULL; | |
391 | ||
392 | for (i = 0; i < used_atom_cnt; i++) { | |
393 | const char *name = used_atom[i]; | |
394 | struct atom_value *v = &val[i]; | |
395 | if (!!deref != (*name == '*')) | |
396 | continue; | |
397 | if (deref) | |
398 | name++; | |
399 | if (strncmp(who, name, wholen)) | |
400 | continue; | |
401 | if (name[wholen] != 0 && | |
402 | strcmp(name + wholen, "name") && | |
403 | strcmp(name + wholen, "email") && | |
d392e712 | 404 | prefixcmp(name + wholen, "date")) |
9f613ddd JH |
405 | continue; |
406 | if (!wholine) | |
407 | wholine = find_wholine(who, wholen, buf, sz); | |
408 | if (!wholine) | |
409 | return; /* no point looking for it */ | |
410 | if (name[wholen] == 0) | |
411 | v->s = copy_line(wholine); | |
412 | else if (!strcmp(name + wholen, "name")) | |
413 | v->s = copy_name(wholine); | |
414 | else if (!strcmp(name + wholen, "email")) | |
415 | v->s = copy_email(wholine); | |
d392e712 AP |
416 | else if (!prefixcmp(name + wholen, "date")) |
417 | grab_date(wholine, v, name); | |
9f613ddd | 418 | } |
3175aa1e JH |
419 | |
420 | /* For a tag or a commit object, if "creator" or "creatordate" is | |
421 | * requested, do something special. | |
422 | */ | |
423 | if (strcmp(who, "tagger") && strcmp(who, "committer")) | |
424 | return; /* "author" for commit object is not wanted */ | |
425 | if (!wholine) | |
426 | wholine = find_wholine(who, wholen, buf, sz); | |
427 | if (!wholine) | |
428 | return; | |
429 | for (i = 0; i < used_atom_cnt; i++) { | |
430 | const char *name = used_atom[i]; | |
431 | struct atom_value *v = &val[i]; | |
432 | if (!!deref != (*name == '*')) | |
433 | continue; | |
434 | if (deref) | |
435 | name++; | |
436 | ||
d392e712 AP |
437 | if (!prefixcmp(name, "creatordate")) |
438 | grab_date(wholine, v, name); | |
3175aa1e JH |
439 | else if (!strcmp(name, "creator")) |
440 | v->s = copy_line(wholine); | |
441 | } | |
9f613ddd JH |
442 | } |
443 | ||
444 | static void find_subpos(const char *buf, unsigned long sz, const char **sub, const char **body) | |
445 | { | |
446 | while (*buf) { | |
447 | const char *eol = strchr(buf, '\n'); | |
448 | if (!eol) | |
449 | return; | |
450 | if (eol[1] == '\n') { | |
451 | buf = eol + 1; | |
452 | break; /* found end of header */ | |
453 | } | |
454 | buf = eol + 1; | |
455 | } | |
456 | while (*buf == '\n') | |
457 | buf++; | |
458 | if (!*buf) | |
459 | return; | |
460 | *sub = buf; /* first non-empty line */ | |
461 | buf = strchr(buf, '\n'); | |
e276c26b JH |
462 | if (!buf) { |
463 | *body = ""; | |
9f613ddd | 464 | return; /* no body */ |
e276c26b | 465 | } |
9f613ddd JH |
466 | while (*buf == '\n') |
467 | buf++; /* skip blank between subject and body */ | |
468 | *body = buf; | |
469 | } | |
470 | ||
471 | /* See grab_values */ | |
472 | static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
473 | { | |
474 | int i; | |
475 | const char *subpos = NULL, *bodypos = NULL; | |
476 | ||
477 | for (i = 0; i < used_atom_cnt; i++) { | |
478 | const char *name = used_atom[i]; | |
479 | struct atom_value *v = &val[i]; | |
480 | if (!!deref != (*name == '*')) | |
481 | continue; | |
482 | if (deref) | |
483 | name++; | |
484 | if (strcmp(name, "subject") && | |
485 | strcmp(name, "body") && | |
486 | strcmp(name, "contents")) | |
487 | continue; | |
488 | if (!subpos) | |
489 | find_subpos(buf, sz, &subpos, &bodypos); | |
490 | if (!subpos) | |
491 | return; | |
492 | ||
493 | if (!strcmp(name, "subject")) | |
494 | v->s = copy_line(subpos); | |
495 | else if (!strcmp(name, "body")) | |
f8290630 | 496 | v->s = xstrdup(bodypos); |
9f613ddd | 497 | else if (!strcmp(name, "contents")) |
f8290630 | 498 | v->s = xstrdup(subpos); |
9f613ddd JH |
499 | } |
500 | } | |
501 | ||
502 | /* We want to have empty print-string for field requests | |
503 | * that do not apply (e.g. "authordate" for a tag object) | |
504 | */ | |
505 | static void fill_missing_values(struct atom_value *val) | |
506 | { | |
507 | int i; | |
508 | for (i = 0; i < used_atom_cnt; i++) { | |
509 | struct atom_value *v = &val[i]; | |
510 | if (v->s == NULL) | |
511 | v->s = ""; | |
512 | } | |
513 | } | |
514 | ||
515 | /* | |
516 | * val is a list of atom_value to hold returned values. Extract | |
517 | * the values for atoms in used_atom array out of (obj, buf, sz). | |
518 | * when deref is false, (obj, buf, sz) is the object that is | |
519 | * pointed at by the ref itself; otherwise it is the object the | |
520 | * ref (which is a tag) refers to. | |
521 | */ | |
522 | static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
523 | { | |
524 | grab_common_values(val, deref, obj, buf, sz); | |
525 | switch (obj->type) { | |
526 | case OBJ_TAG: | |
527 | grab_tag_values(val, deref, obj, buf, sz); | |
528 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
529 | grab_person("tagger", val, deref, obj, buf, sz); | |
530 | break; | |
531 | case OBJ_COMMIT: | |
532 | grab_commit_values(val, deref, obj, buf, sz); | |
533 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
534 | grab_person("author", val, deref, obj, buf, sz); | |
535 | grab_person("committer", val, deref, obj, buf, sz); | |
536 | break; | |
537 | case OBJ_TREE: | |
538 | // grab_tree_values(val, deref, obj, buf, sz); | |
539 | break; | |
540 | case OBJ_BLOB: | |
541 | // grab_blob_values(val, deref, obj, buf, sz); | |
542 | break; | |
543 | default: | |
544 | die("Eh? Object of type %d?", obj->type); | |
545 | } | |
546 | } | |
547 | ||
548 | /* | |
549 | * Parse the object referred by ref, and grab needed value. | |
550 | */ | |
551 | static void populate_value(struct refinfo *ref) | |
552 | { | |
553 | void *buf; | |
554 | struct object *obj; | |
555 | int eaten, i; | |
556 | unsigned long size; | |
557 | const unsigned char *tagged; | |
558 | ||
559 | ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt); | |
560 | ||
561 | buf = get_obj(ref->objectname, &obj, &size, &eaten); | |
562 | if (!buf) | |
563 | die("missing object %s for %s", | |
564 | sha1_to_hex(ref->objectname), ref->refname); | |
565 | if (!obj) | |
566 | die("parse_object_buffer failed on %s for %s", | |
567 | sha1_to_hex(ref->objectname), ref->refname); | |
568 | ||
569 | /* Fill in specials first */ | |
570 | for (i = 0; i < used_atom_cnt; i++) { | |
571 | const char *name = used_atom[i]; | |
572 | struct atom_value *v = &ref->value[i]; | |
7d66f21a | 573 | int deref = 0; |
8db9a4b8 JK |
574 | const char *refname; |
575 | const char *formatp; | |
576 | ||
7d66f21a BW |
577 | if (*name == '*') { |
578 | deref = 1; | |
579 | name++; | |
580 | } | |
7d66f21a | 581 | |
8db9a4b8 JK |
582 | if (!prefixcmp(name, "refname")) |
583 | refname = ref->refname; | |
8cae19d9 JK |
584 | else if(!prefixcmp(name, "upstream")) { |
585 | struct branch *branch; | |
586 | /* only local branches may have an upstream */ | |
587 | if (prefixcmp(ref->refname, "refs/heads/")) | |
588 | continue; | |
589 | branch = branch_get(ref->refname + 11); | |
590 | ||
591 | if (!branch || !branch->merge || !branch->merge[0] || | |
592 | !branch->merge[0]->dst) | |
593 | continue; | |
594 | refname = branch->merge[0]->dst; | |
595 | } | |
8db9a4b8 JK |
596 | else |
597 | continue; | |
598 | ||
599 | formatp = strchr(name, ':'); | |
600 | /* look for "short" refname format */ | |
601 | if (formatp) { | |
602 | formatp++; | |
603 | if (!strcmp(formatp, "short")) | |
2bb98169 BW |
604 | refname = shorten_unambiguous_ref(refname, |
605 | warn_ambiguous_refs); | |
8db9a4b8 JK |
606 | else |
607 | die("unknown %.*s format %s", | |
608 | (int)(formatp - name), name, formatp); | |
609 | } | |
610 | ||
611 | if (!deref) | |
612 | v->s = refname; | |
613 | else { | |
614 | int len = strlen(refname); | |
615 | char *s = xmalloc(len + 4); | |
616 | sprintf(s, "%s^{}", refname); | |
617 | v->s = s; | |
9f613ddd JH |
618 | } |
619 | } | |
620 | ||
621 | grab_values(ref->value, 0, obj, buf, size); | |
622 | if (!eaten) | |
623 | free(buf); | |
624 | ||
625 | /* If there is no atom that wants to know about tagged | |
626 | * object, we are done. | |
627 | */ | |
628 | if (!need_tagged || (obj->type != OBJ_TAG)) | |
629 | return; | |
630 | ||
631 | /* If it is a tag object, see if we use a value that derefs | |
632 | * the object, and if we do grab the object it refers to. | |
633 | */ | |
634 | tagged = ((struct tag *)obj)->tagged->sha1; | |
635 | ||
636 | /* NEEDSWORK: This derefs tag only once, which | |
637 | * is good to deal with chains of trust, but | |
638 | * is not consistent with what deref_tag() does | |
639 | * which peels the onion to the core. | |
640 | */ | |
641 | buf = get_obj(tagged, &obj, &size, &eaten); | |
642 | if (!buf) | |
643 | die("missing object %s for %s", | |
644 | sha1_to_hex(tagged), ref->refname); | |
645 | if (!obj) | |
646 | die("parse_object_buffer failed on %s for %s", | |
647 | sha1_to_hex(tagged), ref->refname); | |
648 | grab_values(ref->value, 1, obj, buf, size); | |
649 | if (!eaten) | |
650 | free(buf); | |
651 | } | |
652 | ||
653 | /* | |
654 | * Given a ref, return the value for the atom. This lazily gets value | |
655 | * out of the object by calling populate value. | |
656 | */ | |
657 | static void get_value(struct refinfo *ref, int atom, struct atom_value **v) | |
658 | { | |
659 | if (!ref->value) { | |
660 | populate_value(ref); | |
661 | fill_missing_values(ref->value); | |
662 | } | |
663 | *v = &ref->value[atom]; | |
664 | } | |
665 | ||
340adb8b JH |
666 | struct grab_ref_cbdata { |
667 | struct refinfo **grab_array; | |
668 | const char **grab_pattern; | |
669 | int grab_cnt; | |
670 | }; | |
9f613ddd JH |
671 | |
672 | /* | |
673 | * A call-back given to for_each_ref(). It is unfortunate that we | |
674 | * need to use global variables to pass extra information to this | |
675 | * function. | |
676 | */ | |
340adb8b | 677 | static int grab_single_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
9f613ddd | 678 | { |
340adb8b | 679 | struct grab_ref_cbdata *cb = cb_data; |
9f613ddd JH |
680 | struct refinfo *ref; |
681 | int cnt; | |
682 | ||
340adb8b | 683 | if (*cb->grab_pattern) { |
9f613ddd JH |
684 | const char **pattern; |
685 | int namelen = strlen(refname); | |
340adb8b | 686 | for (pattern = cb->grab_pattern; *pattern; pattern++) { |
9f613ddd JH |
687 | const char *p = *pattern; |
688 | int plen = strlen(p); | |
689 | ||
690 | if ((plen <= namelen) && | |
691 | !strncmp(refname, p, plen) && | |
692 | (refname[plen] == '\0' || | |
114ef908 BS |
693 | refname[plen] == '/' || |
694 | p[plen-1] == '/')) | |
9f613ddd JH |
695 | break; |
696 | if (!fnmatch(p, refname, FNM_PATHNAME)) | |
697 | break; | |
698 | } | |
699 | if (!*pattern) | |
700 | return 0; | |
701 | } | |
702 | ||
703 | /* We do not open the object yet; sort may only need refname | |
704 | * to do its job and the resulting list may yet to be pruned | |
705 | * by maxcount logic. | |
706 | */ | |
707 | ref = xcalloc(1, sizeof(*ref)); | |
708 | ref->refname = xstrdup(refname); | |
709 | hashcpy(ref->objectname, sha1); | |
710 | ||
340adb8b JH |
711 | cnt = cb->grab_cnt; |
712 | cb->grab_array = xrealloc(cb->grab_array, | |
713 | sizeof(*cb->grab_array) * (cnt + 1)); | |
714 | cb->grab_array[cnt++] = ref; | |
715 | cb->grab_cnt = cnt; | |
9f613ddd JH |
716 | return 0; |
717 | } | |
718 | ||
9f613ddd JH |
719 | static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b) |
720 | { | |
721 | struct atom_value *va, *vb; | |
722 | int cmp; | |
723 | cmp_type cmp_type = used_atom_type[s->atom]; | |
724 | ||
725 | get_value(a, s->atom, &va); | |
726 | get_value(b, s->atom, &vb); | |
727 | switch (cmp_type) { | |
728 | case FIELD_STR: | |
729 | cmp = strcmp(va->s, vb->s); | |
730 | break; | |
731 | default: | |
732 | if (va->ul < vb->ul) | |
733 | cmp = -1; | |
734 | else if (va->ul == vb->ul) | |
735 | cmp = 0; | |
736 | else | |
737 | cmp = 1; | |
738 | break; | |
739 | } | |
740 | return (s->reverse) ? -cmp : cmp; | |
741 | } | |
742 | ||
743 | static struct ref_sort *ref_sort; | |
744 | static int compare_refs(const void *a_, const void *b_) | |
745 | { | |
746 | struct refinfo *a = *((struct refinfo **)a_); | |
747 | struct refinfo *b = *((struct refinfo **)b_); | |
748 | struct ref_sort *s; | |
749 | ||
750 | for (s = ref_sort; s; s = s->next) { | |
751 | int cmp = cmp_ref_sort(s, a, b); | |
752 | if (cmp) | |
753 | return cmp; | |
754 | } | |
755 | return 0; | |
756 | } | |
757 | ||
758 | static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs) | |
759 | { | |
760 | ref_sort = sort; | |
761 | qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs); | |
762 | } | |
763 | ||
764 | static void print_value(struct refinfo *ref, int atom, int quote_style) | |
765 | { | |
766 | struct atom_value *v; | |
767 | get_value(ref, atom, &v); | |
768 | switch (quote_style) { | |
769 | case QUOTE_NONE: | |
770 | fputs(v->s, stdout); | |
771 | break; | |
772 | case QUOTE_SHELL: | |
773 | sq_quote_print(stdout, v->s); | |
774 | break; | |
775 | case QUOTE_PERL: | |
776 | perl_quote_print(stdout, v->s); | |
777 | break; | |
778 | case QUOTE_PYTHON: | |
779 | python_quote_print(stdout, v->s); | |
780 | break; | |
5558e55c SP |
781 | case QUOTE_TCL: |
782 | tcl_quote_print(stdout, v->s); | |
783 | break; | |
9f613ddd JH |
784 | } |
785 | } | |
786 | ||
787 | static int hex1(char ch) | |
788 | { | |
789 | if ('0' <= ch && ch <= '9') | |
790 | return ch - '0'; | |
791 | else if ('a' <= ch && ch <= 'f') | |
792 | return ch - 'a' + 10; | |
793 | else if ('A' <= ch && ch <= 'F') | |
794 | return ch - 'A' + 10; | |
795 | return -1; | |
796 | } | |
797 | static int hex2(const char *cp) | |
798 | { | |
799 | if (cp[0] && cp[1]) | |
800 | return (hex1(cp[0]) << 4) | hex1(cp[1]); | |
801 | else | |
802 | return -1; | |
803 | } | |
804 | ||
805 | static void emit(const char *cp, const char *ep) | |
806 | { | |
807 | while (*cp && (!ep || cp < ep)) { | |
808 | if (*cp == '%') { | |
809 | if (cp[1] == '%') | |
810 | cp++; | |
811 | else { | |
812 | int ch = hex2(cp + 1); | |
813 | if (0 <= ch) { | |
814 | putchar(ch); | |
815 | cp += 3; | |
816 | continue; | |
817 | } | |
818 | } | |
819 | } | |
820 | putchar(*cp); | |
821 | cp++; | |
822 | } | |
823 | } | |
824 | ||
825 | static void show_ref(struct refinfo *info, const char *format, int quote_style) | |
826 | { | |
827 | const char *cp, *sp, *ep; | |
828 | ||
829 | for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) { | |
830 | ep = strchr(sp, ')'); | |
831 | if (cp < sp) | |
832 | emit(cp, sp); | |
833 | print_value(info, parse_atom(sp + 2, ep), quote_style); | |
834 | } | |
835 | if (*cp) { | |
836 | sp = cp + strlen(cp); | |
837 | emit(cp, sp); | |
838 | } | |
839 | putchar('\n'); | |
840 | } | |
841 | ||
842 | static struct ref_sort *default_sort(void) | |
843 | { | |
844 | static const char cstr_name[] = "refname"; | |
845 | ||
846 | struct ref_sort *sort = xcalloc(1, sizeof(*sort)); | |
847 | ||
848 | sort->next = NULL; | |
849 | sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name)); | |
850 | return sort; | |
851 | } | |
852 | ||
186458b1 | 853 | static int opt_parse_sort(const struct option *opt, const char *arg, int unset) |
c3428da8 PH |
854 | { |
855 | struct ref_sort **sort_tail = opt->value; | |
856 | struct ref_sort *s; | |
857 | int len; | |
858 | ||
859 | if (!arg) /* should --no-sort void the list ? */ | |
860 | return -1; | |
861 | ||
862 | *sort_tail = s = xcalloc(1, sizeof(*s)); | |
c3428da8 PH |
863 | |
864 | if (*arg == '-') { | |
865 | s->reverse = 1; | |
866 | arg++; | |
867 | } | |
868 | len = strlen(arg); | |
869 | s->atom = parse_atom(arg, arg+len); | |
870 | return 0; | |
871 | } | |
872 | ||
873 | static char const * const for_each_ref_usage[] = { | |
1b1dd23f | 874 | "git for-each-ref [options] [<pattern>]", |
c3428da8 PH |
875 | NULL |
876 | }; | |
877 | ||
878 | int cmd_for_each_ref(int argc, const char **argv, const char *prefix) | |
9f613ddd JH |
879 | { |
880 | int i, num_refs; | |
c3428da8 | 881 | const char *format = "%(objectname) %(objecttype)\t%(refname)"; |
9f613ddd | 882 | struct ref_sort *sort = NULL, **sort_tail = &sort; |
9fac800c | 883 | int maxcount = 0, quote_style = 0; |
9f613ddd | 884 | struct refinfo **refs; |
340adb8b | 885 | struct grab_ref_cbdata cbdata; |
9f613ddd | 886 | |
c3428da8 | 887 | struct option opts[] = { |
9fac800c PH |
888 | OPT_BIT('s', "shell", "e_style, |
889 | "quote placeholders suitably for shells", QUOTE_SHELL), | |
890 | OPT_BIT('p', "perl", "e_style, | |
891 | "quote placeholders suitably for perl", QUOTE_PERL), | |
892 | OPT_BIT(0 , "python", "e_style, | |
893 | "quote placeholders suitably for python", QUOTE_PYTHON), | |
894 | OPT_BIT(0 , "tcl", "e_style, | |
895 | "quote placeholders suitably for tcl", QUOTE_TCL), | |
c3428da8 PH |
896 | |
897 | OPT_GROUP(""), | |
898 | OPT_INTEGER( 0 , "count", &maxcount, "show only <n> matched refs"), | |
899 | OPT_STRING( 0 , "format", &format, "format", "format to use for the output"), | |
c899a57c | 900 | OPT_CALLBACK(0 , "sort", sort_tail, "key", |
c3428da8 PH |
901 | "field name to sort on", &opt_parse_sort), |
902 | OPT_END(), | |
903 | }; | |
904 | ||
905 | parse_options(argc, argv, opts, for_each_ref_usage, 0); | |
906 | if (maxcount < 0) { | |
907 | error("invalid --count argument: `%d'", maxcount); | |
908 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd | 909 | } |
9fac800c | 910 | if (HAS_MULTI_BITS(quote_style)) { |
c9ecf4f1 | 911 | error("more than one quoting style?"); |
c3428da8 PH |
912 | usage_with_options(for_each_ref_usage, opts); |
913 | } | |
914 | if (verify_format(format)) | |
915 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd JH |
916 | |
917 | if (!sort) | |
918 | sort = default_sort(); | |
919 | sort_atom_limit = used_atom_cnt; | |
9f613ddd | 920 | |
2bb98169 BW |
921 | /* for warn_ambiguous_refs */ |
922 | git_config(git_default_config, NULL); | |
923 | ||
340adb8b | 924 | memset(&cbdata, 0, sizeof(cbdata)); |
c3428da8 | 925 | cbdata.grab_pattern = argv; |
340adb8b JH |
926 | for_each_ref(grab_single_ref, &cbdata); |
927 | refs = cbdata.grab_array; | |
928 | num_refs = cbdata.grab_cnt; | |
9f613ddd JH |
929 | |
930 | for (i = 0; i < used_atom_cnt; i++) { | |
931 | if (used_atom[i][0] == '*') { | |
932 | need_tagged = 1; | |
933 | break; | |
934 | } | |
935 | } | |
936 | ||
937 | sort_refs(sort, refs, num_refs); | |
938 | ||
939 | if (!maxcount || num_refs < maxcount) | |
940 | maxcount = num_refs; | |
941 | for (i = 0; i < maxcount; i++) | |
942 | show_ref(refs[i], format, quote_style); | |
943 | return 0; | |
944 | } |