Commit | Line | Data |
---|---|---|
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]; | |
5cdd628c JH |
36 | int flag; |
37 | const char *symref; | |
9f613ddd JH |
38 | struct atom_value *value; |
39 | }; | |
40 | ||
41 | static struct { | |
42 | const char *name; | |
43 | cmp_type cmp_type; | |
44 | } valid_atom[] = { | |
45 | { "refname" }, | |
46 | { "objecttype" }, | |
47 | { "objectsize", FIELD_ULONG }, | |
48 | { "objectname" }, | |
49 | { "tree" }, | |
9e1a2acf | 50 | { "parent" }, |
9f613ddd JH |
51 | { "numparent", FIELD_ULONG }, |
52 | { "object" }, | |
53 | { "type" }, | |
54 | { "tag" }, | |
55 | { "author" }, | |
56 | { "authorname" }, | |
57 | { "authoremail" }, | |
58 | { "authordate", FIELD_TIME }, | |
59 | { "committer" }, | |
60 | { "committername" }, | |
61 | { "committeremail" }, | |
62 | { "committerdate", FIELD_TIME }, | |
63 | { "tagger" }, | |
64 | { "taggername" }, | |
65 | { "taggeremail" }, | |
66 | { "taggerdate", FIELD_TIME }, | |
3175aa1e JH |
67 | { "creator" }, |
68 | { "creatordate", FIELD_TIME }, | |
9f613ddd JH |
69 | { "subject" }, |
70 | { "body" }, | |
71 | { "contents" }, | |
8cae19d9 | 72 | { "upstream" }, |
5cdd628c | 73 | { "symref" }, |
88fb7f27 | 74 | { "flag" }, |
9f613ddd JH |
75 | }; |
76 | ||
77 | /* | |
78 | * An atom is a valid field atom listed above, possibly prefixed with | |
79 | * a "*" to denote deref_tag(). | |
80 | * | |
81 | * We parse given format string and sort specifiers, and make a list | |
82 | * of properties that we need to extract out of objects. refinfo | |
83 | * structure will hold an array of values extracted that can be | |
84 | * indexed with the "atom number", which is an index into this | |
85 | * array. | |
86 | */ | |
87 | static const char **used_atom; | |
88 | static cmp_type *used_atom_type; | |
5cdd628c | 89 | static int used_atom_cnt, sort_atom_limit, need_tagged, need_symref; |
9f613ddd JH |
90 | |
91 | /* | |
92 | * Used to parse format string and sort specifiers | |
93 | */ | |
94 | static int parse_atom(const char *atom, const char *ep) | |
95 | { | |
96 | const char *sp; | |
9f613ddd JH |
97 | int i, at; |
98 | ||
99 | sp = atom; | |
100 | if (*sp == '*' && sp < ep) | |
101 | sp++; /* deref */ | |
102 | if (ep <= sp) | |
103 | die("malformed field name: %.*s", (int)(ep-atom), atom); | |
104 | ||
105 | /* Do we have the atom already used elsewhere? */ | |
106 | for (i = 0; i < used_atom_cnt; i++) { | |
107 | int len = strlen(used_atom[i]); | |
108 | if (len == ep - atom && !memcmp(used_atom[i], atom, len)) | |
109 | return i; | |
110 | } | |
111 | ||
112 | /* Is the atom a valid one? */ | |
113 | for (i = 0; i < ARRAY_SIZE(valid_atom); i++) { | |
114 | int len = strlen(valid_atom[i].name); | |
b64265ca AP |
115 | /* |
116 | * If the atom name has a colon, strip it and everything after | |
117 | * it off - it specifies the format for this entry, and | |
118 | * shouldn't be used for checking against the valid_atom | |
119 | * table. | |
120 | */ | |
121 | const char *formatp = strchr(sp, ':'); | |
070f6918 | 122 | if (!formatp || ep < formatp) |
b64265ca AP |
123 | formatp = ep; |
124 | if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len)) | |
9f613ddd JH |
125 | break; |
126 | } | |
127 | ||
128 | if (ARRAY_SIZE(valid_atom) <= i) | |
129 | die("unknown field name: %.*s", (int)(ep-atom), atom); | |
130 | ||
131 | /* Add it in, including the deref prefix */ | |
132 | at = used_atom_cnt; | |
133 | used_atom_cnt++; | |
134 | used_atom = xrealloc(used_atom, | |
135 | (sizeof *used_atom) * used_atom_cnt); | |
136 | used_atom_type = xrealloc(used_atom_type, | |
137 | (sizeof(*used_atom_type) * used_atom_cnt)); | |
182af834 | 138 | used_atom[at] = xmemdupz(atom, ep - atom); |
9f613ddd | 139 | used_atom_type[at] = valid_atom[i].cmp_type; |
20322e0b JH |
140 | if (*atom == '*') |
141 | need_tagged = 1; | |
5cdd628c JH |
142 | if (!strcmp(used_atom[at], "symref")) |
143 | need_symref = 1; | |
9f613ddd JH |
144 | return at; |
145 | } | |
146 | ||
147 | /* | |
148 | * In a format string, find the next occurrence of %(atom). | |
149 | */ | |
150 | static const char *find_next(const char *cp) | |
151 | { | |
152 | while (*cp) { | |
153 | if (*cp == '%') { | |
40dae309 JH |
154 | /* |
155 | * %( is the start of an atom; | |
3dff5379 | 156 | * %% is a quoted per-cent. |
9f613ddd JH |
157 | */ |
158 | if (cp[1] == '(') | |
159 | return cp; | |
160 | else if (cp[1] == '%') | |
161 | cp++; /* skip over two % */ | |
162 | /* otherwise this is a singleton, literal % */ | |
163 | } | |
164 | cp++; | |
165 | } | |
166 | return NULL; | |
167 | } | |
168 | ||
169 | /* | |
170 | * Make sure the format string is well formed, and parse out | |
171 | * the used atoms. | |
172 | */ | |
c3428da8 | 173 | static int verify_format(const char *format) |
9f613ddd JH |
174 | { |
175 | const char *cp, *sp; | |
176 | for (cp = format; *cp && (sp = find_next(cp)); ) { | |
177 | const char *ep = strchr(sp, ')'); | |
178 | if (!ep) | |
8e0fbe67 | 179 | return error("malformed format string %s", sp); |
9f613ddd JH |
180 | /* sp points at "%(" and ep points at the closing ")" */ |
181 | parse_atom(sp + 2, ep); | |
182 | cp = ep + 1; | |
183 | } | |
c3428da8 | 184 | return 0; |
9f613ddd JH |
185 | } |
186 | ||
187 | /* | |
188 | * Given an object name, read the object data and size, and return a | |
189 | * "struct object". If the object data we are returning is also borrowed | |
190 | * by the "struct object" representation, set *eaten as well---it is a | |
191 | * signal from parse_object_buffer to us not to free the buffer. | |
192 | */ | |
193 | static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten) | |
194 | { | |
21666f1a NP |
195 | enum object_type type; |
196 | void *buf = read_sha1_file(sha1, &type, sz); | |
9f613ddd JH |
197 | |
198 | if (buf) | |
199 | *obj = parse_object_buffer(sha1, type, *sz, buf, eaten); | |
200 | else | |
201 | *obj = NULL; | |
202 | return buf; | |
203 | } | |
204 | ||
205 | /* See grab_values */ | |
206 | static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
207 | { | |
208 | int i; | |
209 | ||
210 | for (i = 0; i < used_atom_cnt; i++) { | |
211 | const char *name = used_atom[i]; | |
212 | struct atom_value *v = &val[i]; | |
213 | if (!!deref != (*name == '*')) | |
214 | continue; | |
215 | if (deref) | |
216 | name++; | |
217 | if (!strcmp(name, "objecttype")) | |
df843662 | 218 | v->s = typename(obj->type); |
9f613ddd JH |
219 | else if (!strcmp(name, "objectsize")) { |
220 | char *s = xmalloc(40); | |
221 | sprintf(s, "%lu", sz); | |
222 | v->ul = sz; | |
223 | v->s = s; | |
224 | } | |
225 | else if (!strcmp(name, "objectname")) { | |
226 | char *s = xmalloc(41); | |
227 | strcpy(s, sha1_to_hex(obj->sha1)); | |
228 | v->s = s; | |
229 | } | |
67687fea | 230 | else if (!strcmp(name, "objectname:short")) { |
ea16a030 JS |
231 | v->s = xstrdup(find_unique_abbrev(obj->sha1, |
232 | DEFAULT_ABBREV)); | |
67687fea | 233 | } |
9f613ddd JH |
234 | } |
235 | } | |
236 | ||
237 | /* See grab_values */ | |
238 | static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
239 | { | |
240 | int i; | |
241 | struct tag *tag = (struct tag *) obj; | |
242 | ||
243 | for (i = 0; i < used_atom_cnt; i++) { | |
244 | const char *name = used_atom[i]; | |
245 | struct atom_value *v = &val[i]; | |
246 | if (!!deref != (*name == '*')) | |
247 | continue; | |
248 | if (deref) | |
249 | name++; | |
250 | if (!strcmp(name, "tag")) | |
251 | v->s = tag->tag; | |
87412ec1 JK |
252 | else if (!strcmp(name, "type") && tag->tagged) |
253 | v->s = typename(tag->tagged->type); | |
254 | else if (!strcmp(name, "object") && tag->tagged) { | |
255 | char *s = xmalloc(41); | |
256 | strcpy(s, sha1_to_hex(tag->tagged->sha1)); | |
257 | v->s = s; | |
258 | } | |
9f613ddd JH |
259 | } |
260 | } | |
261 | ||
262 | static int num_parents(struct commit *commit) | |
263 | { | |
264 | struct commit_list *parents; | |
265 | int i; | |
266 | ||
267 | for (i = 0, parents = commit->parents; | |
268 | parents; | |
269 | parents = parents->next) | |
270 | i++; | |
271 | return i; | |
272 | } | |
273 | ||
274 | /* See grab_values */ | |
275 | static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
276 | { | |
277 | int i; | |
278 | struct commit *commit = (struct commit *) obj; | |
279 | ||
280 | for (i = 0; i < used_atom_cnt; i++) { | |
281 | const char *name = used_atom[i]; | |
282 | struct atom_value *v = &val[i]; | |
283 | if (!!deref != (*name == '*')) | |
284 | continue; | |
285 | if (deref) | |
286 | name++; | |
287 | if (!strcmp(name, "tree")) { | |
288 | char *s = xmalloc(41); | |
289 | strcpy(s, sha1_to_hex(commit->tree->object.sha1)); | |
290 | v->s = s; | |
291 | } | |
292 | if (!strcmp(name, "numparent")) { | |
293 | char *s = xmalloc(40); | |
9e1a2acf | 294 | v->ul = num_parents(commit); |
9f613ddd JH |
295 | sprintf(s, "%lu", v->ul); |
296 | v->s = s; | |
9f613ddd JH |
297 | } |
298 | else if (!strcmp(name, "parent")) { | |
299 | int num = num_parents(commit); | |
300 | int i; | |
301 | struct commit_list *parents; | |
9e1a2acf | 302 | char *s = xmalloc(41 * num + 1); |
9f613ddd JH |
303 | v->s = s; |
304 | for (i = 0, parents = commit->parents; | |
305 | parents; | |
9e1a2acf | 306 | parents = parents->next, i = i + 41) { |
9f613ddd JH |
307 | struct commit *parent = parents->item; |
308 | strcpy(s+i, sha1_to_hex(parent->object.sha1)); | |
309 | if (parents->next) | |
310 | s[i+40] = ' '; | |
311 | } | |
9e1a2acf JH |
312 | if (!i) |
313 | *s = '\0'; | |
9f613ddd JH |
314 | } |
315 | } | |
316 | } | |
317 | ||
318 | static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz) | |
319 | { | |
320 | const char *eol; | |
321 | while (*buf) { | |
322 | if (!strncmp(buf, who, wholen) && | |
323 | buf[wholen] == ' ') | |
324 | return buf + wholen + 1; | |
325 | eol = strchr(buf, '\n'); | |
326 | if (!eol) | |
327 | return ""; | |
328 | eol++; | |
a74fa110 | 329 | if (*eol == '\n') |
9f613ddd JH |
330 | return ""; /* end of header */ |
331 | buf = eol; | |
332 | } | |
333 | return ""; | |
334 | } | |
335 | ||
3a55602e | 336 | static const char *copy_line(const char *buf) |
9f613ddd | 337 | { |
94e02e7f | 338 | const char *eol = strchrnul(buf, '\n'); |
182af834 | 339 | return xmemdupz(buf, eol - buf); |
9f613ddd JH |
340 | } |
341 | ||
3a55602e | 342 | static const char *copy_name(const char *buf) |
9f613ddd | 343 | { |
182af834 | 344 | const char *cp; |
6b30852d | 345 | for (cp = buf; *cp && *cp != '\n'; cp++) { |
182af834 PH |
346 | if (!strncmp(cp, " <", 2)) |
347 | return xmemdupz(buf, cp - buf); | |
348 | } | |
349 | return ""; | |
9f613ddd JH |
350 | } |
351 | ||
3a55602e | 352 | static const char *copy_email(const char *buf) |
9f613ddd JH |
353 | { |
354 | const char *email = strchr(buf, '<'); | |
e64c1b00 JK |
355 | const char *eoemail; |
356 | if (!email) | |
357 | return ""; | |
358 | eoemail = strchr(email, '>'); | |
359 | if (!eoemail) | |
9f613ddd | 360 | return ""; |
182af834 | 361 | return xmemdupz(email, eoemail + 1 - email); |
9f613ddd JH |
362 | } |
363 | ||
d392e712 | 364 | static void grab_date(const char *buf, struct atom_value *v, const char *atomname) |
9f613ddd JH |
365 | { |
366 | const char *eoemail = strstr(buf, "> "); | |
367 | char *zone; | |
368 | unsigned long timestamp; | |
369 | long tz; | |
d392e712 AP |
370 | enum date_mode date_mode = DATE_NORMAL; |
371 | const char *formatp; | |
372 | ||
373 | /* | |
374 | * We got here because atomname ends in "date" or "date<something>"; | |
375 | * it's not possible that <something> is not ":<format>" because | |
376 | * parse_atom() wouldn't have allowed it, so we can assume that no | |
377 | * ":" means no format is specified, and use the default. | |
378 | */ | |
379 | formatp = strchr(atomname, ':'); | |
380 | if (formatp != NULL) { | |
381 | formatp++; | |
382 | date_mode = parse_date_format(formatp); | |
383 | } | |
9f613ddd JH |
384 | |
385 | if (!eoemail) | |
386 | goto bad; | |
387 | timestamp = strtoul(eoemail + 2, &zone, 10); | |
388 | if (timestamp == ULONG_MAX) | |
389 | goto bad; | |
390 | tz = strtol(zone, NULL, 10); | |
391 | if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE) | |
392 | goto bad; | |
d392e712 | 393 | v->s = xstrdup(show_date(timestamp, tz, date_mode)); |
9f613ddd JH |
394 | v->ul = timestamp; |
395 | return; | |
396 | bad: | |
397 | v->s = ""; | |
398 | v->ul = 0; | |
399 | } | |
400 | ||
401 | /* See grab_values */ | |
402 | static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
403 | { | |
404 | int i; | |
405 | int wholen = strlen(who); | |
406 | const char *wholine = NULL; | |
407 | ||
408 | for (i = 0; i < used_atom_cnt; i++) { | |
409 | const char *name = used_atom[i]; | |
410 | struct atom_value *v = &val[i]; | |
411 | if (!!deref != (*name == '*')) | |
412 | continue; | |
413 | if (deref) | |
414 | name++; | |
415 | if (strncmp(who, name, wholen)) | |
416 | continue; | |
417 | if (name[wholen] != 0 && | |
418 | strcmp(name + wholen, "name") && | |
419 | strcmp(name + wholen, "email") && | |
d392e712 | 420 | prefixcmp(name + wholen, "date")) |
9f613ddd JH |
421 | continue; |
422 | if (!wholine) | |
423 | wholine = find_wholine(who, wholen, buf, sz); | |
424 | if (!wholine) | |
425 | return; /* no point looking for it */ | |
426 | if (name[wholen] == 0) | |
427 | v->s = copy_line(wholine); | |
428 | else if (!strcmp(name + wholen, "name")) | |
429 | v->s = copy_name(wholine); | |
430 | else if (!strcmp(name + wholen, "email")) | |
431 | v->s = copy_email(wholine); | |
d392e712 AP |
432 | else if (!prefixcmp(name + wholen, "date")) |
433 | grab_date(wholine, v, name); | |
9f613ddd | 434 | } |
3175aa1e | 435 | |
40dae309 JH |
436 | /* |
437 | * For a tag or a commit object, if "creator" or "creatordate" is | |
3175aa1e JH |
438 | * requested, do something special. |
439 | */ | |
440 | if (strcmp(who, "tagger") && strcmp(who, "committer")) | |
441 | return; /* "author" for commit object is not wanted */ | |
442 | if (!wholine) | |
443 | wholine = find_wholine(who, wholen, buf, sz); | |
444 | if (!wholine) | |
445 | return; | |
446 | for (i = 0; i < used_atom_cnt; i++) { | |
447 | const char *name = used_atom[i]; | |
448 | struct atom_value *v = &val[i]; | |
449 | if (!!deref != (*name == '*')) | |
450 | continue; | |
451 | if (deref) | |
452 | name++; | |
453 | ||
d392e712 AP |
454 | if (!prefixcmp(name, "creatordate")) |
455 | grab_date(wholine, v, name); | |
3175aa1e JH |
456 | else if (!strcmp(name, "creator")) |
457 | v->s = copy_line(wholine); | |
458 | } | |
9f613ddd JH |
459 | } |
460 | ||
461 | static void find_subpos(const char *buf, unsigned long sz, const char **sub, const char **body) | |
462 | { | |
463 | while (*buf) { | |
464 | const char *eol = strchr(buf, '\n'); | |
465 | if (!eol) | |
466 | return; | |
467 | if (eol[1] == '\n') { | |
468 | buf = eol + 1; | |
469 | break; /* found end of header */ | |
470 | } | |
471 | buf = eol + 1; | |
472 | } | |
473 | while (*buf == '\n') | |
474 | buf++; | |
475 | if (!*buf) | |
476 | return; | |
477 | *sub = buf; /* first non-empty line */ | |
478 | buf = strchr(buf, '\n'); | |
e276c26b JH |
479 | if (!buf) { |
480 | *body = ""; | |
9f613ddd | 481 | return; /* no body */ |
e276c26b | 482 | } |
9f613ddd JH |
483 | while (*buf == '\n') |
484 | buf++; /* skip blank between subject and body */ | |
485 | *body = buf; | |
486 | } | |
487 | ||
488 | /* See grab_values */ | |
489 | static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
490 | { | |
491 | int i; | |
492 | const char *subpos = NULL, *bodypos = NULL; | |
493 | ||
494 | for (i = 0; i < used_atom_cnt; i++) { | |
495 | const char *name = used_atom[i]; | |
496 | struct atom_value *v = &val[i]; | |
497 | if (!!deref != (*name == '*')) | |
498 | continue; | |
499 | if (deref) | |
500 | name++; | |
501 | if (strcmp(name, "subject") && | |
502 | strcmp(name, "body") && | |
503 | strcmp(name, "contents")) | |
504 | continue; | |
505 | if (!subpos) | |
506 | find_subpos(buf, sz, &subpos, &bodypos); | |
507 | if (!subpos) | |
508 | return; | |
509 | ||
510 | if (!strcmp(name, "subject")) | |
511 | v->s = copy_line(subpos); | |
512 | else if (!strcmp(name, "body")) | |
f8290630 | 513 | v->s = xstrdup(bodypos); |
9f613ddd | 514 | else if (!strcmp(name, "contents")) |
f8290630 | 515 | v->s = xstrdup(subpos); |
9f613ddd JH |
516 | } |
517 | } | |
518 | ||
40dae309 JH |
519 | /* |
520 | * We want to have empty print-string for field requests | |
9f613ddd JH |
521 | * that do not apply (e.g. "authordate" for a tag object) |
522 | */ | |
523 | static void fill_missing_values(struct atom_value *val) | |
524 | { | |
525 | int i; | |
526 | for (i = 0; i < used_atom_cnt; i++) { | |
527 | struct atom_value *v = &val[i]; | |
528 | if (v->s == NULL) | |
529 | v->s = ""; | |
530 | } | |
531 | } | |
532 | ||
533 | /* | |
534 | * val is a list of atom_value to hold returned values. Extract | |
535 | * the values for atoms in used_atom array out of (obj, buf, sz). | |
536 | * when deref is false, (obj, buf, sz) is the object that is | |
537 | * pointed at by the ref itself; otherwise it is the object the | |
538 | * ref (which is a tag) refers to. | |
539 | */ | |
540 | static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
541 | { | |
542 | grab_common_values(val, deref, obj, buf, sz); | |
543 | switch (obj->type) { | |
544 | case OBJ_TAG: | |
545 | grab_tag_values(val, deref, obj, buf, sz); | |
546 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
547 | grab_person("tagger", val, deref, obj, buf, sz); | |
548 | break; | |
549 | case OBJ_COMMIT: | |
550 | grab_commit_values(val, deref, obj, buf, sz); | |
551 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
552 | grab_person("author", val, deref, obj, buf, sz); | |
553 | grab_person("committer", val, deref, obj, buf, sz); | |
554 | break; | |
555 | case OBJ_TREE: | |
2543d9b6 | 556 | /* grab_tree_values(val, deref, obj, buf, sz); */ |
9f613ddd JH |
557 | break; |
558 | case OBJ_BLOB: | |
2543d9b6 | 559 | /* grab_blob_values(val, deref, obj, buf, sz); */ |
9f613ddd JH |
560 | break; |
561 | default: | |
562 | die("Eh? Object of type %d?", obj->type); | |
563 | } | |
564 | } | |
565 | ||
88fb7f27 JH |
566 | static inline char *copy_advance(char *dst, const char *src) |
567 | { | |
568 | while (*src) | |
569 | *dst++ = *src++; | |
570 | return dst; | |
571 | } | |
572 | ||
9f613ddd JH |
573 | /* |
574 | * Parse the object referred by ref, and grab needed value. | |
575 | */ | |
576 | static void populate_value(struct refinfo *ref) | |
577 | { | |
578 | void *buf; | |
579 | struct object *obj; | |
580 | int eaten, i; | |
581 | unsigned long size; | |
582 | const unsigned char *tagged; | |
583 | ||
584 | ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt); | |
585 | ||
5cdd628c JH |
586 | if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) { |
587 | unsigned char unused1[20]; | |
588 | const char *symref; | |
589 | symref = resolve_ref(ref->refname, unused1, 1, NULL); | |
590 | if (symref) | |
591 | ref->symref = xstrdup(symref); | |
592 | else | |
593 | ref->symref = ""; | |
594 | } | |
595 | ||
9f613ddd JH |
596 | /* Fill in specials first */ |
597 | for (i = 0; i < used_atom_cnt; i++) { | |
598 | const char *name = used_atom[i]; | |
599 | struct atom_value *v = &ref->value[i]; | |
7d66f21a | 600 | int deref = 0; |
8db9a4b8 JK |
601 | const char *refname; |
602 | const char *formatp; | |
603 | ||
7d66f21a BW |
604 | if (*name == '*') { |
605 | deref = 1; | |
606 | name++; | |
607 | } | |
7d66f21a | 608 | |
8db9a4b8 JK |
609 | if (!prefixcmp(name, "refname")) |
610 | refname = ref->refname; | |
5cdd628c JH |
611 | else if (!prefixcmp(name, "symref")) |
612 | refname = ref->symref ? ref->symref : ""; | |
eeefa7c9 | 613 | else if (!prefixcmp(name, "upstream")) { |
8cae19d9 JK |
614 | struct branch *branch; |
615 | /* only local branches may have an upstream */ | |
616 | if (prefixcmp(ref->refname, "refs/heads/")) | |
617 | continue; | |
618 | branch = branch_get(ref->refname + 11); | |
619 | ||
620 | if (!branch || !branch->merge || !branch->merge[0] || | |
621 | !branch->merge[0]->dst) | |
622 | continue; | |
623 | refname = branch->merge[0]->dst; | |
624 | } | |
88fb7f27 JH |
625 | else if (!strcmp(name, "flag")) { |
626 | char buf[256], *cp = buf; | |
627 | if (ref->flag & REF_ISSYMREF) | |
628 | cp = copy_advance(cp, ",symref"); | |
629 | if (ref->flag & REF_ISPACKED) | |
630 | cp = copy_advance(cp, ",packed"); | |
631 | if (cp == buf) | |
632 | v->s = ""; | |
633 | else { | |
634 | *cp = '\0'; | |
635 | v->s = xstrdup(buf + 1); | |
636 | } | |
637 | continue; | |
638 | } | |
8db9a4b8 JK |
639 | else |
640 | continue; | |
641 | ||
642 | formatp = strchr(name, ':'); | |
643 | /* look for "short" refname format */ | |
644 | if (formatp) { | |
645 | formatp++; | |
646 | if (!strcmp(formatp, "short")) | |
2bb98169 BW |
647 | refname = shorten_unambiguous_ref(refname, |
648 | warn_ambiguous_refs); | |
8db9a4b8 JK |
649 | else |
650 | die("unknown %.*s format %s", | |
651 | (int)(formatp - name), name, formatp); | |
652 | } | |
653 | ||
654 | if (!deref) | |
655 | v->s = refname; | |
656 | else { | |
657 | int len = strlen(refname); | |
658 | char *s = xmalloc(len + 4); | |
659 | sprintf(s, "%s^{}", refname); | |
660 | v->s = s; | |
9f613ddd JH |
661 | } |
662 | } | |
663 | ||
b7dd2d20 AK |
664 | for (i = 0; i < used_atom_cnt; i++) { |
665 | struct atom_value *v = &ref->value[i]; | |
666 | if (v->s == NULL) | |
667 | goto need_obj; | |
668 | } | |
669 | return; | |
670 | ||
671 | need_obj: | |
672 | buf = get_obj(ref->objectname, &obj, &size, &eaten); | |
673 | if (!buf) | |
674 | die("missing object %s for %s", | |
675 | sha1_to_hex(ref->objectname), ref->refname); | |
676 | if (!obj) | |
677 | die("parse_object_buffer failed on %s for %s", | |
678 | sha1_to_hex(ref->objectname), ref->refname); | |
679 | ||
9f613ddd JH |
680 | grab_values(ref->value, 0, obj, buf, size); |
681 | if (!eaten) | |
682 | free(buf); | |
683 | ||
40dae309 JH |
684 | /* |
685 | * If there is no atom that wants to know about tagged | |
9f613ddd JH |
686 | * object, we are done. |
687 | */ | |
688 | if (!need_tagged || (obj->type != OBJ_TAG)) | |
689 | return; | |
690 | ||
40dae309 JH |
691 | /* |
692 | * If it is a tag object, see if we use a value that derefs | |
9f613ddd JH |
693 | * the object, and if we do grab the object it refers to. |
694 | */ | |
695 | tagged = ((struct tag *)obj)->tagged->sha1; | |
696 | ||
40dae309 JH |
697 | /* |
698 | * NEEDSWORK: This derefs tag only once, which | |
9f613ddd JH |
699 | * is good to deal with chains of trust, but |
700 | * is not consistent with what deref_tag() does | |
701 | * which peels the onion to the core. | |
702 | */ | |
703 | buf = get_obj(tagged, &obj, &size, &eaten); | |
704 | if (!buf) | |
705 | die("missing object %s for %s", | |
706 | sha1_to_hex(tagged), ref->refname); | |
707 | if (!obj) | |
708 | die("parse_object_buffer failed on %s for %s", | |
709 | sha1_to_hex(tagged), ref->refname); | |
710 | grab_values(ref->value, 1, obj, buf, size); | |
711 | if (!eaten) | |
712 | free(buf); | |
713 | } | |
714 | ||
715 | /* | |
716 | * Given a ref, return the value for the atom. This lazily gets value | |
717 | * out of the object by calling populate value. | |
718 | */ | |
719 | static void get_value(struct refinfo *ref, int atom, struct atom_value **v) | |
720 | { | |
721 | if (!ref->value) { | |
722 | populate_value(ref); | |
723 | fill_missing_values(ref->value); | |
724 | } | |
725 | *v = &ref->value[atom]; | |
726 | } | |
727 | ||
340adb8b JH |
728 | struct grab_ref_cbdata { |
729 | struct refinfo **grab_array; | |
730 | const char **grab_pattern; | |
731 | int grab_cnt; | |
732 | }; | |
9f613ddd JH |
733 | |
734 | /* | |
40dae309 JH |
735 | * A call-back given to for_each_ref(). Filter refs and keep them for |
736 | * later object processing. | |
9f613ddd | 737 | */ |
340adb8b | 738 | static int grab_single_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
9f613ddd | 739 | { |
340adb8b | 740 | struct grab_ref_cbdata *cb = cb_data; |
9f613ddd JH |
741 | struct refinfo *ref; |
742 | int cnt; | |
743 | ||
340adb8b | 744 | if (*cb->grab_pattern) { |
9f613ddd JH |
745 | const char **pattern; |
746 | int namelen = strlen(refname); | |
340adb8b | 747 | for (pattern = cb->grab_pattern; *pattern; pattern++) { |
9f613ddd JH |
748 | const char *p = *pattern; |
749 | int plen = strlen(p); | |
750 | ||
751 | if ((plen <= namelen) && | |
752 | !strncmp(refname, p, plen) && | |
753 | (refname[plen] == '\0' || | |
114ef908 BS |
754 | refname[plen] == '/' || |
755 | p[plen-1] == '/')) | |
9f613ddd JH |
756 | break; |
757 | if (!fnmatch(p, refname, FNM_PATHNAME)) | |
758 | break; | |
759 | } | |
760 | if (!*pattern) | |
761 | return 0; | |
762 | } | |
763 | ||
40dae309 JH |
764 | /* |
765 | * We do not open the object yet; sort may only need refname | |
9f613ddd JH |
766 | * to do its job and the resulting list may yet to be pruned |
767 | * by maxcount logic. | |
768 | */ | |
769 | ref = xcalloc(1, sizeof(*ref)); | |
770 | ref->refname = xstrdup(refname); | |
771 | hashcpy(ref->objectname, sha1); | |
5cdd628c | 772 | ref->flag = flag; |
9f613ddd | 773 | |
340adb8b JH |
774 | cnt = cb->grab_cnt; |
775 | cb->grab_array = xrealloc(cb->grab_array, | |
776 | sizeof(*cb->grab_array) * (cnt + 1)); | |
777 | cb->grab_array[cnt++] = ref; | |
778 | cb->grab_cnt = cnt; | |
9f613ddd JH |
779 | return 0; |
780 | } | |
781 | ||
9f613ddd JH |
782 | static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b) |
783 | { | |
784 | struct atom_value *va, *vb; | |
785 | int cmp; | |
786 | cmp_type cmp_type = used_atom_type[s->atom]; | |
787 | ||
788 | get_value(a, s->atom, &va); | |
789 | get_value(b, s->atom, &vb); | |
790 | switch (cmp_type) { | |
791 | case FIELD_STR: | |
792 | cmp = strcmp(va->s, vb->s); | |
793 | break; | |
794 | default: | |
795 | if (va->ul < vb->ul) | |
796 | cmp = -1; | |
797 | else if (va->ul == vb->ul) | |
798 | cmp = 0; | |
799 | else | |
800 | cmp = 1; | |
801 | break; | |
802 | } | |
803 | return (s->reverse) ? -cmp : cmp; | |
804 | } | |
805 | ||
806 | static struct ref_sort *ref_sort; | |
807 | static int compare_refs(const void *a_, const void *b_) | |
808 | { | |
809 | struct refinfo *a = *((struct refinfo **)a_); | |
810 | struct refinfo *b = *((struct refinfo **)b_); | |
811 | struct ref_sort *s; | |
812 | ||
813 | for (s = ref_sort; s; s = s->next) { | |
814 | int cmp = cmp_ref_sort(s, a, b); | |
815 | if (cmp) | |
816 | return cmp; | |
817 | } | |
818 | return 0; | |
819 | } | |
820 | ||
821 | static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs) | |
822 | { | |
823 | ref_sort = sort; | |
824 | qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs); | |
825 | } | |
826 | ||
827 | static void print_value(struct refinfo *ref, int atom, int quote_style) | |
828 | { | |
829 | struct atom_value *v; | |
830 | get_value(ref, atom, &v); | |
831 | switch (quote_style) { | |
832 | case QUOTE_NONE: | |
833 | fputs(v->s, stdout); | |
834 | break; | |
835 | case QUOTE_SHELL: | |
836 | sq_quote_print(stdout, v->s); | |
837 | break; | |
838 | case QUOTE_PERL: | |
839 | perl_quote_print(stdout, v->s); | |
840 | break; | |
841 | case QUOTE_PYTHON: | |
842 | python_quote_print(stdout, v->s); | |
843 | break; | |
5558e55c SP |
844 | case QUOTE_TCL: |
845 | tcl_quote_print(stdout, v->s); | |
846 | break; | |
9f613ddd JH |
847 | } |
848 | } | |
849 | ||
850 | static int hex1(char ch) | |
851 | { | |
852 | if ('0' <= ch && ch <= '9') | |
853 | return ch - '0'; | |
854 | else if ('a' <= ch && ch <= 'f') | |
855 | return ch - 'a' + 10; | |
856 | else if ('A' <= ch && ch <= 'F') | |
857 | return ch - 'A' + 10; | |
858 | return -1; | |
859 | } | |
860 | static int hex2(const char *cp) | |
861 | { | |
862 | if (cp[0] && cp[1]) | |
863 | return (hex1(cp[0]) << 4) | hex1(cp[1]); | |
864 | else | |
865 | return -1; | |
866 | } | |
867 | ||
868 | static void emit(const char *cp, const char *ep) | |
869 | { | |
870 | while (*cp && (!ep || cp < ep)) { | |
871 | if (*cp == '%') { | |
872 | if (cp[1] == '%') | |
873 | cp++; | |
874 | else { | |
875 | int ch = hex2(cp + 1); | |
876 | if (0 <= ch) { | |
877 | putchar(ch); | |
878 | cp += 3; | |
879 | continue; | |
880 | } | |
881 | } | |
882 | } | |
883 | putchar(*cp); | |
884 | cp++; | |
885 | } | |
886 | } | |
887 | ||
888 | static void show_ref(struct refinfo *info, const char *format, int quote_style) | |
889 | { | |
890 | const char *cp, *sp, *ep; | |
891 | ||
892 | for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) { | |
893 | ep = strchr(sp, ')'); | |
894 | if (cp < sp) | |
895 | emit(cp, sp); | |
896 | print_value(info, parse_atom(sp + 2, ep), quote_style); | |
897 | } | |
898 | if (*cp) { | |
899 | sp = cp + strlen(cp); | |
900 | emit(cp, sp); | |
901 | } | |
902 | putchar('\n'); | |
903 | } | |
904 | ||
905 | static struct ref_sort *default_sort(void) | |
906 | { | |
907 | static const char cstr_name[] = "refname"; | |
908 | ||
909 | struct ref_sort *sort = xcalloc(1, sizeof(*sort)); | |
910 | ||
911 | sort->next = NULL; | |
912 | sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name)); | |
913 | return sort; | |
914 | } | |
915 | ||
186458b1 | 916 | static int opt_parse_sort(const struct option *opt, const char *arg, int unset) |
c3428da8 PH |
917 | { |
918 | struct ref_sort **sort_tail = opt->value; | |
919 | struct ref_sort *s; | |
920 | int len; | |
921 | ||
922 | if (!arg) /* should --no-sort void the list ? */ | |
923 | return -1; | |
924 | ||
925 | *sort_tail = s = xcalloc(1, sizeof(*s)); | |
c3428da8 PH |
926 | |
927 | if (*arg == '-') { | |
928 | s->reverse = 1; | |
929 | arg++; | |
930 | } | |
931 | len = strlen(arg); | |
932 | s->atom = parse_atom(arg, arg+len); | |
933 | return 0; | |
934 | } | |
935 | ||
936 | static char const * const for_each_ref_usage[] = { | |
1b1dd23f | 937 | "git for-each-ref [options] [<pattern>]", |
c3428da8 PH |
938 | NULL |
939 | }; | |
940 | ||
941 | int cmd_for_each_ref(int argc, const char **argv, const char *prefix) | |
9f613ddd JH |
942 | { |
943 | int i, num_refs; | |
c3428da8 | 944 | const char *format = "%(objectname) %(objecttype)\t%(refname)"; |
9f613ddd | 945 | struct ref_sort *sort = NULL, **sort_tail = &sort; |
9fac800c | 946 | int maxcount = 0, quote_style = 0; |
9f613ddd | 947 | struct refinfo **refs; |
340adb8b | 948 | struct grab_ref_cbdata cbdata; |
9f613ddd | 949 | |
c3428da8 | 950 | struct option opts[] = { |
9fac800c PH |
951 | OPT_BIT('s', "shell", "e_style, |
952 | "quote placeholders suitably for shells", QUOTE_SHELL), | |
953 | OPT_BIT('p', "perl", "e_style, | |
954 | "quote placeholders suitably for perl", QUOTE_PERL), | |
955 | OPT_BIT(0 , "python", "e_style, | |
956 | "quote placeholders suitably for python", QUOTE_PYTHON), | |
957 | OPT_BIT(0 , "tcl", "e_style, | |
958 | "quote placeholders suitably for tcl", QUOTE_TCL), | |
c3428da8 PH |
959 | |
960 | OPT_GROUP(""), | |
961 | OPT_INTEGER( 0 , "count", &maxcount, "show only <n> matched refs"), | |
962 | OPT_STRING( 0 , "format", &format, "format", "format to use for the output"), | |
c899a57c | 963 | OPT_CALLBACK(0 , "sort", sort_tail, "key", |
c3428da8 PH |
964 | "field name to sort on", &opt_parse_sort), |
965 | OPT_END(), | |
966 | }; | |
967 | ||
37782920 | 968 | parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0); |
c3428da8 PH |
969 | if (maxcount < 0) { |
970 | error("invalid --count argument: `%d'", maxcount); | |
971 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd | 972 | } |
9fac800c | 973 | if (HAS_MULTI_BITS(quote_style)) { |
c9ecf4f1 | 974 | error("more than one quoting style?"); |
c3428da8 PH |
975 | usage_with_options(for_each_ref_usage, opts); |
976 | } | |
977 | if (verify_format(format)) | |
978 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd JH |
979 | |
980 | if (!sort) | |
981 | sort = default_sort(); | |
982 | sort_atom_limit = used_atom_cnt; | |
9f613ddd | 983 | |
2bb98169 BW |
984 | /* for warn_ambiguous_refs */ |
985 | git_config(git_default_config, NULL); | |
986 | ||
340adb8b | 987 | memset(&cbdata, 0, sizeof(cbdata)); |
c3428da8 | 988 | cbdata.grab_pattern = argv; |
b7dd2d20 | 989 | for_each_rawref(grab_single_ref, &cbdata); |
340adb8b JH |
990 | refs = cbdata.grab_array; |
991 | num_refs = cbdata.grab_cnt; | |
9f613ddd | 992 | |
9f613ddd JH |
993 | sort_refs(sort, refs, num_refs); |
994 | ||
995 | if (!maxcount || num_refs < maxcount) | |
996 | maxcount = num_refs; | |
997 | for (i = 0; i < maxcount; i++) | |
998 | show_ref(refs[i], format, quote_style); | |
999 | return 0; | |
1000 | } |