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