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