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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" }, | |
e2b23972 MG |
72 | { "contents:subject" }, |
73 | { "contents:body" }, | |
74 | { "contents:signature" }, | |
8cae19d9 | 75 | { "upstream" }, |
5cdd628c | 76 | { "symref" }, |
88fb7f27 | 77 | { "flag" }, |
9f613ddd JH |
78 | }; |
79 | ||
80 | /* | |
81 | * An atom is a valid field atom listed above, possibly prefixed with | |
82 | * a "*" to denote deref_tag(). | |
83 | * | |
84 | * We parse given format string and sort specifiers, and make a list | |
85 | * of properties that we need to extract out of objects. refinfo | |
86 | * structure will hold an array of values extracted that can be | |
87 | * indexed with the "atom number", which is an index into this | |
88 | * array. | |
89 | */ | |
90 | static const char **used_atom; | |
91 | static cmp_type *used_atom_type; | |
5cdd628c | 92 | static int used_atom_cnt, sort_atom_limit, need_tagged, need_symref; |
9f613ddd JH |
93 | |
94 | /* | |
95 | * Used to parse format string and sort specifiers | |
96 | */ | |
97 | static int parse_atom(const char *atom, const char *ep) | |
98 | { | |
99 | const char *sp; | |
9f613ddd JH |
100 | int i, at; |
101 | ||
102 | sp = atom; | |
103 | if (*sp == '*' && sp < ep) | |
104 | sp++; /* deref */ | |
105 | if (ep <= sp) | |
106 | die("malformed field name: %.*s", (int)(ep-atom), atom); | |
107 | ||
108 | /* Do we have the atom already used elsewhere? */ | |
109 | for (i = 0; i < used_atom_cnt; i++) { | |
110 | int len = strlen(used_atom[i]); | |
111 | if (len == ep - atom && !memcmp(used_atom[i], atom, len)) | |
112 | return i; | |
113 | } | |
114 | ||
115 | /* Is the atom a valid one? */ | |
116 | for (i = 0; i < ARRAY_SIZE(valid_atom); i++) { | |
117 | int len = strlen(valid_atom[i].name); | |
b64265ca AP |
118 | /* |
119 | * If the atom name has a colon, strip it and everything after | |
120 | * it off - it specifies the format for this entry, and | |
121 | * shouldn't be used for checking against the valid_atom | |
122 | * table. | |
123 | */ | |
124 | const char *formatp = strchr(sp, ':'); | |
070f6918 | 125 | if (!formatp || ep < formatp) |
b64265ca AP |
126 | formatp = ep; |
127 | if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len)) | |
9f613ddd JH |
128 | break; |
129 | } | |
130 | ||
131 | if (ARRAY_SIZE(valid_atom) <= i) | |
132 | die("unknown field name: %.*s", (int)(ep-atom), atom); | |
133 | ||
134 | /* Add it in, including the deref prefix */ | |
135 | at = used_atom_cnt; | |
136 | used_atom_cnt++; | |
137 | used_atom = xrealloc(used_atom, | |
138 | (sizeof *used_atom) * used_atom_cnt); | |
139 | used_atom_type = xrealloc(used_atom_type, | |
140 | (sizeof(*used_atom_type) * used_atom_cnt)); | |
182af834 | 141 | used_atom[at] = xmemdupz(atom, ep - atom); |
9f613ddd | 142 | used_atom_type[at] = valid_atom[i].cmp_type; |
20322e0b JH |
143 | if (*atom == '*') |
144 | need_tagged = 1; | |
5cdd628c JH |
145 | if (!strcmp(used_atom[at], "symref")) |
146 | need_symref = 1; | |
9f613ddd JH |
147 | return at; |
148 | } | |
149 | ||
150 | /* | |
151 | * In a format string, find the next occurrence of %(atom). | |
152 | */ | |
153 | static const char *find_next(const char *cp) | |
154 | { | |
155 | while (*cp) { | |
156 | if (*cp == '%') { | |
40dae309 JH |
157 | /* |
158 | * %( is the start of an atom; | |
3dff5379 | 159 | * %% is a quoted per-cent. |
9f613ddd JH |
160 | */ |
161 | if (cp[1] == '(') | |
162 | return cp; | |
163 | else if (cp[1] == '%') | |
164 | cp++; /* skip over two % */ | |
165 | /* otherwise this is a singleton, literal % */ | |
166 | } | |
167 | cp++; | |
168 | } | |
169 | return NULL; | |
170 | } | |
171 | ||
172 | /* | |
173 | * Make sure the format string is well formed, and parse out | |
174 | * the used atoms. | |
175 | */ | |
c3428da8 | 176 | static int verify_format(const char *format) |
9f613ddd JH |
177 | { |
178 | const char *cp, *sp; | |
179 | for (cp = format; *cp && (sp = find_next(cp)); ) { | |
180 | const char *ep = strchr(sp, ')'); | |
181 | if (!ep) | |
8e0fbe67 | 182 | return error("malformed format string %s", sp); |
9f613ddd JH |
183 | /* sp points at "%(" and ep points at the closing ")" */ |
184 | parse_atom(sp + 2, ep); | |
185 | cp = ep + 1; | |
186 | } | |
c3428da8 | 187 | return 0; |
9f613ddd JH |
188 | } |
189 | ||
190 | /* | |
191 | * Given an object name, read the object data and size, and return a | |
192 | * "struct object". If the object data we are returning is also borrowed | |
193 | * by the "struct object" representation, set *eaten as well---it is a | |
194 | * signal from parse_object_buffer to us not to free the buffer. | |
195 | */ | |
196 | static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten) | |
197 | { | |
21666f1a NP |
198 | enum object_type type; |
199 | void *buf = read_sha1_file(sha1, &type, sz); | |
9f613ddd JH |
200 | |
201 | if (buf) | |
202 | *obj = parse_object_buffer(sha1, type, *sz, buf, eaten); | |
203 | else | |
204 | *obj = NULL; | |
205 | return buf; | |
206 | } | |
207 | ||
208 | /* See grab_values */ | |
209 | static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
210 | { | |
211 | int i; | |
212 | ||
213 | for (i = 0; i < used_atom_cnt; i++) { | |
214 | const char *name = used_atom[i]; | |
215 | struct atom_value *v = &val[i]; | |
216 | if (!!deref != (*name == '*')) | |
217 | continue; | |
218 | if (deref) | |
219 | name++; | |
220 | if (!strcmp(name, "objecttype")) | |
df843662 | 221 | v->s = typename(obj->type); |
9f613ddd JH |
222 | else if (!strcmp(name, "objectsize")) { |
223 | char *s = xmalloc(40); | |
224 | sprintf(s, "%lu", sz); | |
225 | v->ul = sz; | |
226 | v->s = s; | |
227 | } | |
228 | else if (!strcmp(name, "objectname")) { | |
229 | char *s = xmalloc(41); | |
230 | strcpy(s, sha1_to_hex(obj->sha1)); | |
231 | v->s = s; | |
232 | } | |
67687fea | 233 | else if (!strcmp(name, "objectname:short")) { |
ea16a030 JS |
234 | v->s = xstrdup(find_unique_abbrev(obj->sha1, |
235 | DEFAULT_ABBREV)); | |
67687fea | 236 | } |
9f613ddd JH |
237 | } |
238 | } | |
239 | ||
240 | /* See grab_values */ | |
241 | static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
242 | { | |
243 | int i; | |
244 | struct tag *tag = (struct tag *) obj; | |
245 | ||
246 | for (i = 0; i < used_atom_cnt; i++) { | |
247 | const char *name = used_atom[i]; | |
248 | struct atom_value *v = &val[i]; | |
249 | if (!!deref != (*name == '*')) | |
250 | continue; | |
251 | if (deref) | |
252 | name++; | |
253 | if (!strcmp(name, "tag")) | |
254 | v->s = tag->tag; | |
87412ec1 JK |
255 | else if (!strcmp(name, "type") && tag->tagged) |
256 | v->s = typename(tag->tagged->type); | |
257 | else if (!strcmp(name, "object") && tag->tagged) { | |
258 | char *s = xmalloc(41); | |
259 | strcpy(s, sha1_to_hex(tag->tagged->sha1)); | |
260 | v->s = s; | |
261 | } | |
9f613ddd JH |
262 | } |
263 | } | |
264 | ||
265 | static int num_parents(struct commit *commit) | |
266 | { | |
267 | struct commit_list *parents; | |
268 | int i; | |
269 | ||
270 | for (i = 0, parents = commit->parents; | |
271 | parents; | |
272 | parents = parents->next) | |
273 | i++; | |
274 | return i; | |
275 | } | |
276 | ||
277 | /* See grab_values */ | |
278 | static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
279 | { | |
280 | int i; | |
281 | struct commit *commit = (struct commit *) obj; | |
282 | ||
283 | for (i = 0; i < used_atom_cnt; i++) { | |
284 | const char *name = used_atom[i]; | |
285 | struct atom_value *v = &val[i]; | |
286 | if (!!deref != (*name == '*')) | |
287 | continue; | |
288 | if (deref) | |
289 | name++; | |
290 | if (!strcmp(name, "tree")) { | |
291 | char *s = xmalloc(41); | |
292 | strcpy(s, sha1_to_hex(commit->tree->object.sha1)); | |
293 | v->s = s; | |
294 | } | |
295 | if (!strcmp(name, "numparent")) { | |
296 | char *s = xmalloc(40); | |
9e1a2acf | 297 | v->ul = num_parents(commit); |
9f613ddd JH |
298 | sprintf(s, "%lu", v->ul); |
299 | v->s = s; | |
9f613ddd JH |
300 | } |
301 | else if (!strcmp(name, "parent")) { | |
302 | int num = num_parents(commit); | |
303 | int i; | |
304 | struct commit_list *parents; | |
9e1a2acf | 305 | char *s = xmalloc(41 * num + 1); |
9f613ddd JH |
306 | v->s = s; |
307 | for (i = 0, parents = commit->parents; | |
308 | parents; | |
9e1a2acf | 309 | parents = parents->next, i = i + 41) { |
9f613ddd JH |
310 | struct commit *parent = parents->item; |
311 | strcpy(s+i, sha1_to_hex(parent->object.sha1)); | |
312 | if (parents->next) | |
313 | s[i+40] = ' '; | |
314 | } | |
9e1a2acf JH |
315 | if (!i) |
316 | *s = '\0'; | |
9f613ddd JH |
317 | } |
318 | } | |
319 | } | |
320 | ||
321 | static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz) | |
322 | { | |
323 | const char *eol; | |
324 | while (*buf) { | |
325 | if (!strncmp(buf, who, wholen) && | |
326 | buf[wholen] == ' ') | |
327 | return buf + wholen + 1; | |
328 | eol = strchr(buf, '\n'); | |
329 | if (!eol) | |
330 | return ""; | |
331 | eol++; | |
a74fa110 | 332 | if (*eol == '\n') |
9f613ddd JH |
333 | return ""; /* end of header */ |
334 | buf = eol; | |
335 | } | |
336 | return ""; | |
337 | } | |
338 | ||
3a55602e | 339 | static const char *copy_line(const char *buf) |
9f613ddd | 340 | { |
94e02e7f | 341 | const char *eol = strchrnul(buf, '\n'); |
182af834 | 342 | return xmemdupz(buf, eol - buf); |
9f613ddd JH |
343 | } |
344 | ||
3a55602e | 345 | static const char *copy_name(const char *buf) |
9f613ddd | 346 | { |
182af834 | 347 | const char *cp; |
6b30852d | 348 | for (cp = buf; *cp && *cp != '\n'; cp++) { |
182af834 PH |
349 | if (!strncmp(cp, " <", 2)) |
350 | return xmemdupz(buf, cp - buf); | |
351 | } | |
352 | return ""; | |
9f613ddd JH |
353 | } |
354 | ||
3a55602e | 355 | static const char *copy_email(const char *buf) |
9f613ddd JH |
356 | { |
357 | const char *email = strchr(buf, '<'); | |
e64c1b00 JK |
358 | const char *eoemail; |
359 | if (!email) | |
360 | return ""; | |
361 | eoemail = strchr(email, '>'); | |
362 | if (!eoemail) | |
9f613ddd | 363 | return ""; |
182af834 | 364 | return xmemdupz(email, eoemail + 1 - email); |
9f613ddd JH |
365 | } |
366 | ||
7f6e275b JK |
367 | static char *copy_subject(const char *buf, unsigned long len) |
368 | { | |
369 | char *r = xmemdupz(buf, len); | |
370 | int i; | |
371 | ||
372 | for (i = 0; i < len; i++) | |
373 | if (r[i] == '\n') | |
374 | r[i] = ' '; | |
375 | ||
376 | return r; | |
377 | } | |
378 | ||
d392e712 | 379 | static void grab_date(const char *buf, struct atom_value *v, const char *atomname) |
9f613ddd JH |
380 | { |
381 | const char *eoemail = strstr(buf, "> "); | |
382 | char *zone; | |
383 | unsigned long timestamp; | |
384 | long tz; | |
d392e712 AP |
385 | enum date_mode date_mode = DATE_NORMAL; |
386 | const char *formatp; | |
387 | ||
388 | /* | |
389 | * We got here because atomname ends in "date" or "date<something>"; | |
390 | * it's not possible that <something> is not ":<format>" because | |
391 | * parse_atom() wouldn't have allowed it, so we can assume that no | |
392 | * ":" means no format is specified, and use the default. | |
393 | */ | |
394 | formatp = strchr(atomname, ':'); | |
395 | if (formatp != NULL) { | |
396 | formatp++; | |
397 | date_mode = parse_date_format(formatp); | |
398 | } | |
9f613ddd JH |
399 | |
400 | if (!eoemail) | |
401 | goto bad; | |
402 | timestamp = strtoul(eoemail + 2, &zone, 10); | |
403 | if (timestamp == ULONG_MAX) | |
404 | goto bad; | |
405 | tz = strtol(zone, NULL, 10); | |
406 | if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE) | |
407 | goto bad; | |
d392e712 | 408 | v->s = xstrdup(show_date(timestamp, tz, date_mode)); |
9f613ddd JH |
409 | v->ul = timestamp; |
410 | return; | |
411 | bad: | |
412 | v->s = ""; | |
413 | v->ul = 0; | |
414 | } | |
415 | ||
416 | /* See grab_values */ | |
417 | static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
418 | { | |
419 | int i; | |
420 | int wholen = strlen(who); | |
421 | const char *wholine = NULL; | |
422 | ||
423 | for (i = 0; i < used_atom_cnt; i++) { | |
424 | const char *name = used_atom[i]; | |
425 | struct atom_value *v = &val[i]; | |
426 | if (!!deref != (*name == '*')) | |
427 | continue; | |
428 | if (deref) | |
429 | name++; | |
430 | if (strncmp(who, name, wholen)) | |
431 | continue; | |
432 | if (name[wholen] != 0 && | |
433 | strcmp(name + wholen, "name") && | |
434 | strcmp(name + wholen, "email") && | |
d392e712 | 435 | prefixcmp(name + wholen, "date")) |
9f613ddd JH |
436 | continue; |
437 | if (!wholine) | |
438 | wholine = find_wholine(who, wholen, buf, sz); | |
439 | if (!wholine) | |
440 | return; /* no point looking for it */ | |
441 | if (name[wholen] == 0) | |
442 | v->s = copy_line(wholine); | |
443 | else if (!strcmp(name + wholen, "name")) | |
444 | v->s = copy_name(wholine); | |
445 | else if (!strcmp(name + wholen, "email")) | |
446 | v->s = copy_email(wholine); | |
d392e712 AP |
447 | else if (!prefixcmp(name + wholen, "date")) |
448 | grab_date(wholine, v, name); | |
9f613ddd | 449 | } |
3175aa1e | 450 | |
40dae309 JH |
451 | /* |
452 | * For a tag or a commit object, if "creator" or "creatordate" is | |
3175aa1e JH |
453 | * requested, do something special. |
454 | */ | |
455 | if (strcmp(who, "tagger") && strcmp(who, "committer")) | |
456 | return; /* "author" for commit object is not wanted */ | |
457 | if (!wholine) | |
458 | wholine = find_wholine(who, wholen, buf, sz); | |
459 | if (!wholine) | |
460 | return; | |
461 | for (i = 0; i < used_atom_cnt; i++) { | |
462 | const char *name = used_atom[i]; | |
463 | struct atom_value *v = &val[i]; | |
464 | if (!!deref != (*name == '*')) | |
465 | continue; | |
466 | if (deref) | |
467 | name++; | |
468 | ||
d392e712 AP |
469 | if (!prefixcmp(name, "creatordate")) |
470 | grab_date(wholine, v, name); | |
3175aa1e JH |
471 | else if (!strcmp(name, "creator")) |
472 | v->s = copy_line(wholine); | |
473 | } | |
9f613ddd JH |
474 | } |
475 | ||
7ec0f31e JK |
476 | static void find_subpos(const char *buf, unsigned long sz, |
477 | const char **sub, unsigned long *sublen, | |
e2b23972 MG |
478 | const char **body, unsigned long *bodylen, |
479 | unsigned long *nonsiglen, | |
480 | const char **sig, unsigned long *siglen) | |
9f613ddd | 481 | { |
7ec0f31e JK |
482 | const char *eol; |
483 | /* skip past header until we hit empty line */ | |
484 | while (*buf && *buf != '\n') { | |
485 | eol = strchrnul(buf, '\n'); | |
486 | if (*eol) | |
487 | eol++; | |
488 | buf = eol; | |
9f613ddd | 489 | } |
7ec0f31e | 490 | /* skip any empty lines */ |
9f613ddd JH |
491 | while (*buf == '\n') |
492 | buf++; | |
7ec0f31e | 493 | |
e2b23972 MG |
494 | /* parse signature first; we might not even have a subject line */ |
495 | *sig = buf + parse_signature(buf, strlen(buf)); | |
496 | *siglen = strlen(*sig); | |
497 | ||
7ec0f31e JK |
498 | /* subject is first non-empty line */ |
499 | *sub = buf; | |
7f6e275b | 500 | /* subject goes to first empty line */ |
e2b23972 | 501 | while (buf < *sig && *buf && *buf != '\n') { |
7f6e275b JK |
502 | eol = strchrnul(buf, '\n'); |
503 | if (*eol) | |
504 | eol++; | |
505 | buf = eol; | |
506 | } | |
507 | *sublen = buf - *sub; | |
508 | /* drop trailing newline, if present */ | |
509 | if (*sublen && (*sub)[*sublen - 1] == '\n') | |
510 | *sublen -= 1; | |
7ec0f31e JK |
511 | |
512 | /* skip any empty lines */ | |
9f613ddd | 513 | while (*buf == '\n') |
7ec0f31e | 514 | buf++; |
9f613ddd | 515 | *body = buf; |
7ec0f31e | 516 | *bodylen = strlen(buf); |
e2b23972 | 517 | *nonsiglen = *sig - buf; |
9f613ddd JH |
518 | } |
519 | ||
520 | /* See grab_values */ | |
521 | static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
522 | { | |
523 | int i; | |
e2b23972 MG |
524 | const char *subpos = NULL, *bodypos = NULL, *sigpos = NULL; |
525 | unsigned long sublen = 0, bodylen = 0, nonsiglen = 0, siglen = 0; | |
9f613ddd JH |
526 | |
527 | for (i = 0; i < used_atom_cnt; i++) { | |
528 | const char *name = used_atom[i]; | |
529 | struct atom_value *v = &val[i]; | |
530 | if (!!deref != (*name == '*')) | |
531 | continue; | |
532 | if (deref) | |
533 | name++; | |
534 | if (strcmp(name, "subject") && | |
535 | strcmp(name, "body") && | |
e2b23972 MG |
536 | strcmp(name, "contents") && |
537 | strcmp(name, "contents:subject") && | |
538 | strcmp(name, "contents:body") && | |
539 | strcmp(name, "contents:signature")) | |
9f613ddd JH |
540 | continue; |
541 | if (!subpos) | |
7ec0f31e JK |
542 | find_subpos(buf, sz, |
543 | &subpos, &sublen, | |
e2b23972 MG |
544 | &bodypos, &bodylen, &nonsiglen, |
545 | &sigpos, &siglen); | |
9f613ddd JH |
546 | |
547 | if (!strcmp(name, "subject")) | |
7f6e275b | 548 | v->s = copy_subject(subpos, sublen); |
e2b23972 MG |
549 | else if (!strcmp(name, "contents:subject")) |
550 | v->s = copy_subject(subpos, sublen); | |
9f613ddd | 551 | else if (!strcmp(name, "body")) |
7ec0f31e | 552 | v->s = xmemdupz(bodypos, bodylen); |
e2b23972 MG |
553 | else if (!strcmp(name, "contents:body")) |
554 | v->s = xmemdupz(bodypos, nonsiglen); | |
555 | else if (!strcmp(name, "contents:signature")) | |
556 | v->s = xmemdupz(sigpos, siglen); | |
9f613ddd | 557 | else if (!strcmp(name, "contents")) |
f8290630 | 558 | v->s = xstrdup(subpos); |
9f613ddd JH |
559 | } |
560 | } | |
561 | ||
40dae309 JH |
562 | /* |
563 | * We want to have empty print-string for field requests | |
9f613ddd JH |
564 | * that do not apply (e.g. "authordate" for a tag object) |
565 | */ | |
566 | static void fill_missing_values(struct atom_value *val) | |
567 | { | |
568 | int i; | |
569 | for (i = 0; i < used_atom_cnt; i++) { | |
570 | struct atom_value *v = &val[i]; | |
571 | if (v->s == NULL) | |
572 | v->s = ""; | |
573 | } | |
574 | } | |
575 | ||
576 | /* | |
577 | * val is a list of atom_value to hold returned values. Extract | |
578 | * the values for atoms in used_atom array out of (obj, buf, sz). | |
579 | * when deref is false, (obj, buf, sz) is the object that is | |
580 | * pointed at by the ref itself; otherwise it is the object the | |
581 | * ref (which is a tag) refers to. | |
582 | */ | |
583 | static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
584 | { | |
585 | grab_common_values(val, deref, obj, buf, sz); | |
586 | switch (obj->type) { | |
587 | case OBJ_TAG: | |
588 | grab_tag_values(val, deref, obj, buf, sz); | |
589 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
590 | grab_person("tagger", val, deref, obj, buf, sz); | |
591 | break; | |
592 | case OBJ_COMMIT: | |
593 | grab_commit_values(val, deref, obj, buf, sz); | |
594 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
595 | grab_person("author", val, deref, obj, buf, sz); | |
596 | grab_person("committer", val, deref, obj, buf, sz); | |
597 | break; | |
598 | case OBJ_TREE: | |
2543d9b6 | 599 | /* grab_tree_values(val, deref, obj, buf, sz); */ |
9f613ddd JH |
600 | break; |
601 | case OBJ_BLOB: | |
2543d9b6 | 602 | /* grab_blob_values(val, deref, obj, buf, sz); */ |
9f613ddd JH |
603 | break; |
604 | default: | |
605 | die("Eh? Object of type %d?", obj->type); | |
606 | } | |
607 | } | |
608 | ||
88fb7f27 JH |
609 | static inline char *copy_advance(char *dst, const char *src) |
610 | { | |
611 | while (*src) | |
612 | *dst++ = *src++; | |
613 | return dst; | |
614 | } | |
615 | ||
9f613ddd JH |
616 | /* |
617 | * Parse the object referred by ref, and grab needed value. | |
618 | */ | |
619 | static void populate_value(struct refinfo *ref) | |
620 | { | |
621 | void *buf; | |
622 | struct object *obj; | |
623 | int eaten, i; | |
624 | unsigned long size; | |
625 | const unsigned char *tagged; | |
626 | ||
627 | ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt); | |
628 | ||
5cdd628c JH |
629 | if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) { |
630 | unsigned char unused1[20]; | |
96ec7b1e NTND |
631 | ref->symref = resolve_refdup(ref->refname, unused1, 1, NULL); |
632 | if (!ref->symref) | |
5cdd628c JH |
633 | ref->symref = ""; |
634 | } | |
635 | ||
9f613ddd JH |
636 | /* Fill in specials first */ |
637 | for (i = 0; i < used_atom_cnt; i++) { | |
638 | const char *name = used_atom[i]; | |
639 | struct atom_value *v = &ref->value[i]; | |
7d66f21a | 640 | int deref = 0; |
8db9a4b8 JK |
641 | const char *refname; |
642 | const char *formatp; | |
643 | ||
7d66f21a BW |
644 | if (*name == '*') { |
645 | deref = 1; | |
646 | name++; | |
647 | } | |
7d66f21a | 648 | |
8db9a4b8 JK |
649 | if (!prefixcmp(name, "refname")) |
650 | refname = ref->refname; | |
5cdd628c JH |
651 | else if (!prefixcmp(name, "symref")) |
652 | refname = ref->symref ? ref->symref : ""; | |
eeefa7c9 | 653 | else if (!prefixcmp(name, "upstream")) { |
8cae19d9 JK |
654 | struct branch *branch; |
655 | /* only local branches may have an upstream */ | |
656 | if (prefixcmp(ref->refname, "refs/heads/")) | |
657 | continue; | |
658 | branch = branch_get(ref->refname + 11); | |
659 | ||
660 | if (!branch || !branch->merge || !branch->merge[0] || | |
661 | !branch->merge[0]->dst) | |
662 | continue; | |
663 | refname = branch->merge[0]->dst; | |
664 | } | |
88fb7f27 JH |
665 | else if (!strcmp(name, "flag")) { |
666 | char buf[256], *cp = buf; | |
667 | if (ref->flag & REF_ISSYMREF) | |
668 | cp = copy_advance(cp, ",symref"); | |
669 | if (ref->flag & REF_ISPACKED) | |
670 | cp = copy_advance(cp, ",packed"); | |
671 | if (cp == buf) | |
672 | v->s = ""; | |
673 | else { | |
674 | *cp = '\0'; | |
675 | v->s = xstrdup(buf + 1); | |
676 | } | |
677 | continue; | |
678 | } | |
8db9a4b8 JK |
679 | else |
680 | continue; | |
681 | ||
682 | formatp = strchr(name, ':'); | |
683 | /* look for "short" refname format */ | |
684 | if (formatp) { | |
685 | formatp++; | |
686 | if (!strcmp(formatp, "short")) | |
2bb98169 BW |
687 | refname = shorten_unambiguous_ref(refname, |
688 | warn_ambiguous_refs); | |
8db9a4b8 JK |
689 | else |
690 | die("unknown %.*s format %s", | |
691 | (int)(formatp - name), name, formatp); | |
692 | } | |
693 | ||
694 | if (!deref) | |
695 | v->s = refname; | |
696 | else { | |
697 | int len = strlen(refname); | |
698 | char *s = xmalloc(len + 4); | |
699 | sprintf(s, "%s^{}", refname); | |
700 | v->s = s; | |
9f613ddd JH |
701 | } |
702 | } | |
703 | ||
b7dd2d20 AK |
704 | for (i = 0; i < used_atom_cnt; i++) { |
705 | struct atom_value *v = &ref->value[i]; | |
706 | if (v->s == NULL) | |
707 | goto need_obj; | |
708 | } | |
709 | return; | |
710 | ||
711 | need_obj: | |
712 | buf = get_obj(ref->objectname, &obj, &size, &eaten); | |
713 | if (!buf) | |
714 | die("missing object %s for %s", | |
715 | sha1_to_hex(ref->objectname), ref->refname); | |
716 | if (!obj) | |
717 | die("parse_object_buffer failed on %s for %s", | |
718 | sha1_to_hex(ref->objectname), ref->refname); | |
719 | ||
9f613ddd JH |
720 | grab_values(ref->value, 0, obj, buf, size); |
721 | if (!eaten) | |
722 | free(buf); | |
723 | ||
40dae309 JH |
724 | /* |
725 | * If there is no atom that wants to know about tagged | |
9f613ddd JH |
726 | * object, we are done. |
727 | */ | |
728 | if (!need_tagged || (obj->type != OBJ_TAG)) | |
729 | return; | |
730 | ||
40dae309 JH |
731 | /* |
732 | * If it is a tag object, see if we use a value that derefs | |
9f613ddd JH |
733 | * the object, and if we do grab the object it refers to. |
734 | */ | |
735 | tagged = ((struct tag *)obj)->tagged->sha1; | |
736 | ||
40dae309 JH |
737 | /* |
738 | * NEEDSWORK: This derefs tag only once, which | |
9f613ddd JH |
739 | * is good to deal with chains of trust, but |
740 | * is not consistent with what deref_tag() does | |
741 | * which peels the onion to the core. | |
742 | */ | |
743 | buf = get_obj(tagged, &obj, &size, &eaten); | |
744 | if (!buf) | |
745 | die("missing object %s for %s", | |
746 | sha1_to_hex(tagged), ref->refname); | |
747 | if (!obj) | |
748 | die("parse_object_buffer failed on %s for %s", | |
749 | sha1_to_hex(tagged), ref->refname); | |
750 | grab_values(ref->value, 1, obj, buf, size); | |
751 | if (!eaten) | |
752 | free(buf); | |
753 | } | |
754 | ||
755 | /* | |
756 | * Given a ref, return the value for the atom. This lazily gets value | |
757 | * out of the object by calling populate value. | |
758 | */ | |
759 | static void get_value(struct refinfo *ref, int atom, struct atom_value **v) | |
760 | { | |
761 | if (!ref->value) { | |
762 | populate_value(ref); | |
763 | fill_missing_values(ref->value); | |
764 | } | |
765 | *v = &ref->value[atom]; | |
766 | } | |
767 | ||
340adb8b JH |
768 | struct grab_ref_cbdata { |
769 | struct refinfo **grab_array; | |
770 | const char **grab_pattern; | |
771 | int grab_cnt; | |
772 | }; | |
9f613ddd JH |
773 | |
774 | /* | |
40dae309 JH |
775 | * A call-back given to for_each_ref(). Filter refs and keep them for |
776 | * later object processing. | |
9f613ddd | 777 | */ |
340adb8b | 778 | static int grab_single_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
9f613ddd | 779 | { |
340adb8b | 780 | struct grab_ref_cbdata *cb = cb_data; |
9f613ddd JH |
781 | struct refinfo *ref; |
782 | int cnt; | |
783 | ||
340adb8b | 784 | if (*cb->grab_pattern) { |
9f613ddd JH |
785 | const char **pattern; |
786 | int namelen = strlen(refname); | |
340adb8b | 787 | for (pattern = cb->grab_pattern; *pattern; pattern++) { |
9f613ddd JH |
788 | const char *p = *pattern; |
789 | int plen = strlen(p); | |
790 | ||
791 | if ((plen <= namelen) && | |
792 | !strncmp(refname, p, plen) && | |
793 | (refname[plen] == '\0' || | |
114ef908 BS |
794 | refname[plen] == '/' || |
795 | p[plen-1] == '/')) | |
9f613ddd JH |
796 | break; |
797 | if (!fnmatch(p, refname, FNM_PATHNAME)) | |
798 | break; | |
799 | } | |
800 | if (!*pattern) | |
801 | return 0; | |
802 | } | |
803 | ||
40dae309 JH |
804 | /* |
805 | * We do not open the object yet; sort may only need refname | |
9f613ddd JH |
806 | * to do its job and the resulting list may yet to be pruned |
807 | * by maxcount logic. | |
808 | */ | |
809 | ref = xcalloc(1, sizeof(*ref)); | |
810 | ref->refname = xstrdup(refname); | |
811 | hashcpy(ref->objectname, sha1); | |
5cdd628c | 812 | ref->flag = flag; |
9f613ddd | 813 | |
340adb8b JH |
814 | cnt = cb->grab_cnt; |
815 | cb->grab_array = xrealloc(cb->grab_array, | |
816 | sizeof(*cb->grab_array) * (cnt + 1)); | |
817 | cb->grab_array[cnt++] = ref; | |
818 | cb->grab_cnt = cnt; | |
9f613ddd JH |
819 | return 0; |
820 | } | |
821 | ||
9f613ddd JH |
822 | static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b) |
823 | { | |
824 | struct atom_value *va, *vb; | |
825 | int cmp; | |
826 | cmp_type cmp_type = used_atom_type[s->atom]; | |
827 | ||
828 | get_value(a, s->atom, &va); | |
829 | get_value(b, s->atom, &vb); | |
830 | switch (cmp_type) { | |
831 | case FIELD_STR: | |
832 | cmp = strcmp(va->s, vb->s); | |
833 | break; | |
834 | default: | |
835 | if (va->ul < vb->ul) | |
836 | cmp = -1; | |
837 | else if (va->ul == vb->ul) | |
838 | cmp = 0; | |
839 | else | |
840 | cmp = 1; | |
841 | break; | |
842 | } | |
843 | return (s->reverse) ? -cmp : cmp; | |
844 | } | |
845 | ||
846 | static struct ref_sort *ref_sort; | |
847 | static int compare_refs(const void *a_, const void *b_) | |
848 | { | |
849 | struct refinfo *a = *((struct refinfo **)a_); | |
850 | struct refinfo *b = *((struct refinfo **)b_); | |
851 | struct ref_sort *s; | |
852 | ||
853 | for (s = ref_sort; s; s = s->next) { | |
854 | int cmp = cmp_ref_sort(s, a, b); | |
855 | if (cmp) | |
856 | return cmp; | |
857 | } | |
858 | return 0; | |
859 | } | |
860 | ||
861 | static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs) | |
862 | { | |
863 | ref_sort = sort; | |
864 | qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs); | |
865 | } | |
866 | ||
867 | static void print_value(struct refinfo *ref, int atom, int quote_style) | |
868 | { | |
869 | struct atom_value *v; | |
870 | get_value(ref, atom, &v); | |
871 | switch (quote_style) { | |
872 | case QUOTE_NONE: | |
873 | fputs(v->s, stdout); | |
874 | break; | |
875 | case QUOTE_SHELL: | |
876 | sq_quote_print(stdout, v->s); | |
877 | break; | |
878 | case QUOTE_PERL: | |
879 | perl_quote_print(stdout, v->s); | |
880 | break; | |
881 | case QUOTE_PYTHON: | |
882 | python_quote_print(stdout, v->s); | |
883 | break; | |
5558e55c SP |
884 | case QUOTE_TCL: |
885 | tcl_quote_print(stdout, v->s); | |
886 | break; | |
9f613ddd JH |
887 | } |
888 | } | |
889 | ||
890 | static int hex1(char ch) | |
891 | { | |
892 | if ('0' <= ch && ch <= '9') | |
893 | return ch - '0'; | |
894 | else if ('a' <= ch && ch <= 'f') | |
895 | return ch - 'a' + 10; | |
896 | else if ('A' <= ch && ch <= 'F') | |
897 | return ch - 'A' + 10; | |
898 | return -1; | |
899 | } | |
900 | static int hex2(const char *cp) | |
901 | { | |
902 | if (cp[0] && cp[1]) | |
903 | return (hex1(cp[0]) << 4) | hex1(cp[1]); | |
904 | else | |
905 | return -1; | |
906 | } | |
907 | ||
908 | static void emit(const char *cp, const char *ep) | |
909 | { | |
910 | while (*cp && (!ep || cp < ep)) { | |
911 | if (*cp == '%') { | |
912 | if (cp[1] == '%') | |
913 | cp++; | |
914 | else { | |
915 | int ch = hex2(cp + 1); | |
916 | if (0 <= ch) { | |
917 | putchar(ch); | |
918 | cp += 3; | |
919 | continue; | |
920 | } | |
921 | } | |
922 | } | |
923 | putchar(*cp); | |
924 | cp++; | |
925 | } | |
926 | } | |
927 | ||
928 | static void show_ref(struct refinfo *info, const char *format, int quote_style) | |
929 | { | |
930 | const char *cp, *sp, *ep; | |
931 | ||
932 | for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) { | |
933 | ep = strchr(sp, ')'); | |
934 | if (cp < sp) | |
935 | emit(cp, sp); | |
936 | print_value(info, parse_atom(sp + 2, ep), quote_style); | |
937 | } | |
938 | if (*cp) { | |
939 | sp = cp + strlen(cp); | |
940 | emit(cp, sp); | |
941 | } | |
942 | putchar('\n'); | |
943 | } | |
944 | ||
945 | static struct ref_sort *default_sort(void) | |
946 | { | |
947 | static const char cstr_name[] = "refname"; | |
948 | ||
949 | struct ref_sort *sort = xcalloc(1, sizeof(*sort)); | |
950 | ||
951 | sort->next = NULL; | |
952 | sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name)); | |
953 | return sort; | |
954 | } | |
955 | ||
186458b1 | 956 | static int opt_parse_sort(const struct option *opt, const char *arg, int unset) |
c3428da8 PH |
957 | { |
958 | struct ref_sort **sort_tail = opt->value; | |
959 | struct ref_sort *s; | |
960 | int len; | |
961 | ||
962 | if (!arg) /* should --no-sort void the list ? */ | |
963 | return -1; | |
964 | ||
3b51222c KK |
965 | s = xcalloc(1, sizeof(*s)); |
966 | s->next = *sort_tail; | |
967 | *sort_tail = s; | |
c3428da8 PH |
968 | |
969 | if (*arg == '-') { | |
970 | s->reverse = 1; | |
971 | arg++; | |
972 | } | |
973 | len = strlen(arg); | |
974 | s->atom = parse_atom(arg, arg+len); | |
975 | return 0; | |
976 | } | |
977 | ||
978 | static char const * const for_each_ref_usage[] = { | |
18913521 | 979 | N_("git for-each-ref [options] [<pattern>]"), |
c3428da8 PH |
980 | NULL |
981 | }; | |
982 | ||
983 | int cmd_for_each_ref(int argc, const char **argv, const char *prefix) | |
9f613ddd JH |
984 | { |
985 | int i, num_refs; | |
c3428da8 | 986 | const char *format = "%(objectname) %(objecttype)\t%(refname)"; |
9f613ddd | 987 | struct ref_sort *sort = NULL, **sort_tail = &sort; |
9fac800c | 988 | int maxcount = 0, quote_style = 0; |
9f613ddd | 989 | struct refinfo **refs; |
340adb8b | 990 | struct grab_ref_cbdata cbdata; |
9f613ddd | 991 | |
c3428da8 | 992 | struct option opts[] = { |
9fac800c | 993 | OPT_BIT('s', "shell", "e_style, |
18913521 | 994 | N_("quote placeholders suitably for shells"), QUOTE_SHELL), |
9fac800c | 995 | OPT_BIT('p', "perl", "e_style, |
18913521 | 996 | N_("quote placeholders suitably for perl"), QUOTE_PERL), |
9fac800c | 997 | OPT_BIT(0 , "python", "e_style, |
18913521 | 998 | N_("quote placeholders suitably for python"), QUOTE_PYTHON), |
9fac800c | 999 | OPT_BIT(0 , "tcl", "e_style, |
18913521 | 1000 | N_("quote placeholders suitably for tcl"), QUOTE_TCL), |
c3428da8 PH |
1001 | |
1002 | OPT_GROUP(""), | |
18913521 NTND |
1003 | OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")), |
1004 | OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")), | |
1005 | OPT_CALLBACK(0 , "sort", sort_tail, N_("key"), | |
1006 | N_("field name to sort on"), &opt_parse_sort), | |
c3428da8 PH |
1007 | OPT_END(), |
1008 | }; | |
1009 | ||
37782920 | 1010 | parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0); |
c3428da8 PH |
1011 | if (maxcount < 0) { |
1012 | error("invalid --count argument: `%d'", maxcount); | |
1013 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd | 1014 | } |
9fac800c | 1015 | if (HAS_MULTI_BITS(quote_style)) { |
c9ecf4f1 | 1016 | error("more than one quoting style?"); |
c3428da8 PH |
1017 | usage_with_options(for_each_ref_usage, opts); |
1018 | } | |
1019 | if (verify_format(format)) | |
1020 | usage_with_options(for_each_ref_usage, opts); | |
9f613ddd JH |
1021 | |
1022 | if (!sort) | |
1023 | sort = default_sort(); | |
1024 | sort_atom_limit = used_atom_cnt; | |
9f613ddd | 1025 | |
2bb98169 BW |
1026 | /* for warn_ambiguous_refs */ |
1027 | git_config(git_default_config, NULL); | |
1028 | ||
340adb8b | 1029 | memset(&cbdata, 0, sizeof(cbdata)); |
c3428da8 | 1030 | cbdata.grab_pattern = argv; |
b7dd2d20 | 1031 | for_each_rawref(grab_single_ref, &cbdata); |
340adb8b JH |
1032 | refs = cbdata.grab_array; |
1033 | num_refs = cbdata.grab_cnt; | |
9f613ddd | 1034 | |
9f613ddd JH |
1035 | sort_refs(sort, refs, num_refs); |
1036 | ||
1037 | if (!maxcount || num_refs < maxcount) | |
1038 | maxcount = num_refs; | |
1039 | for (i = 0; i < maxcount; i++) | |
1040 | show_ref(refs[i], format, quote_style); | |
1041 | return 0; | |
1042 | } |