3698e822c8356f197d71bd703ffee6deccb30a82
1#include "builtin.h"
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"
10#include "parse-options.h"
11#include "remote.h"
12/* Quoting styles */
14#define QUOTE_NONE 0
15#define QUOTE_SHELL 1
16#define QUOTE_PERL 2
17#define QUOTE_PYTHON 4
18#define QUOTE_TCL 8
19typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type;
21struct atom_value {
23 const char *s;
24 unsigned long ul; /* used for sorting when not FIELD_STR */
25};
26struct ref_sort {
28 struct ref_sort *next;
29 int atom; /* index into used_atom array */
30 unsigned reverse : 1;
31};
32struct refinfo {
34 char *refname;
35 unsigned char objectname[20];
36 struct atom_value *value;
37};
38static 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" },
48 { "parent" },
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 },
65 { "creator" },
66 { "creatordate", FIELD_TIME },
67 { "subject" },
68 { "body" },
69 { "contents" },
70 { "upstream" },
71};
72/*
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 */
83static const char **used_atom;
84static cmp_type *used_atom_type;
85static int used_atom_cnt, sort_atom_limit, need_tagged;
86/*
88 * Used to parse format string and sort specifiers
89 */
90static int parse_atom(const char *atom, const char *ep)
91{
92 const char *sp;
93 int i, at;
94 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 /* 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 /* Is the atom a valid one? */
109 for (i = 0; i < ARRAY_SIZE(valid_atom); i++) {
110 int len = strlen(valid_atom[i].name);
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, ':');
118 if (!formatp || ep < formatp)
119 formatp = ep;
120 if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len))
121 break;
122 }
123 if (ARRAY_SIZE(valid_atom) <= i)
125 die("unknown field name: %.*s", (int)(ep-atom), atom);
126 /* 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));
134 used_atom[at] = xmemdupz(atom, ep - atom);
135 used_atom_type[at] = valid_atom[i].cmp_type;
136 return at;
137}
138/*
140 * In a format string, find the next occurrence of %(atom).
141 */
142static const char *find_next(const char *cp)
143{
144 while (*cp) {
145 if (*cp == '%') {
146 /*
147 * %( is the start of an atom;
148 * %% is a quoted per-cent.
149 */
150 if (cp[1] == '(')
151 return cp;
152 else if (cp[1] == '%')
153 cp++; /* skip over two % */
154 /* otherwise this is a singleton, literal % */
155 }
156 cp++;
157 }
158 return NULL;
159}
160/*
162 * Make sure the format string is well formed, and parse out
163 * the used atoms.
164 */
165static int verify_format(const char *format)
166{
167 const char *cp, *sp;
168 for (cp = format; *cp && (sp = find_next(cp)); ) {
169 const char *ep = strchr(sp, ')');
170 if (!ep)
171 return error("malformed format string %s", sp);
172 /* sp points at "%(" and ep points at the closing ")" */
173 parse_atom(sp + 2, ep);
174 cp = ep + 1;
175 }
176 return 0;
177}
178/*
180 * Given an object name, read the object data and size, and return a
181 * "struct object". If the object data we are returning is also borrowed
182 * by the "struct object" representation, set *eaten as well---it is a
183 * signal from parse_object_buffer to us not to free the buffer.
184 */
185static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten)
186{
187 enum object_type type;
188 void *buf = read_sha1_file(sha1, &type, sz);
189 if (buf)
191 *obj = parse_object_buffer(sha1, type, *sz, buf, eaten);
192 else
193 *obj = NULL;
194 return buf;
195}
196/* See grab_values */
198static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
199{
200 int i;
201 for (i = 0; i < used_atom_cnt; i++) {
203 const char *name = used_atom[i];
204 struct atom_value *v = &val[i];
205 if (!!deref != (*name == '*'))
206 continue;
207 if (deref)
208 name++;
209 if (!strcmp(name, "objecttype"))
210 v->s = typename(obj->type);
211 else if (!strcmp(name, "objectsize")) {
212 char *s = xmalloc(40);
213 sprintf(s, "%lu", sz);
214 v->ul = sz;
215 v->s = s;
216 }
217 else if (!strcmp(name, "objectname")) {
218 char *s = xmalloc(41);
219 strcpy(s, sha1_to_hex(obj->sha1));
220 v->s = s;
221 }
222 }
223}
224/* See grab_values */
226static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
227{
228 int i;
229 struct tag *tag = (struct tag *) obj;
230 for (i = 0; i < used_atom_cnt; i++) {
232 const char *name = used_atom[i];
233 struct atom_value *v = &val[i];
234 if (!!deref != (*name == '*'))
235 continue;
236 if (deref)
237 name++;
238 if (!strcmp(name, "tag"))
239 v->s = tag->tag;
240 else if (!strcmp(name, "type") && tag->tagged)
241 v->s = typename(tag->tagged->type);
242 else if (!strcmp(name, "object") && tag->tagged) {
243 char *s = xmalloc(41);
244 strcpy(s, sha1_to_hex(tag->tagged->sha1));
245 v->s = s;
246 }
247 }
248}
249static int num_parents(struct commit *commit)
251{
252 struct commit_list *parents;
253 int i;
254 for (i = 0, parents = commit->parents;
256 parents;
257 parents = parents->next)
258 i++;
259 return i;
260}
261/* See grab_values */
263static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
264{
265 int i;
266 struct commit *commit = (struct commit *) obj;
267 for (i = 0; i < used_atom_cnt; i++) {
269 const char *name = used_atom[i];
270 struct atom_value *v = &val[i];
271 if (!!deref != (*name == '*'))
272 continue;
273 if (deref)
274 name++;
275 if (!strcmp(name, "tree")) {
276 char *s = xmalloc(41);
277 strcpy(s, sha1_to_hex(commit->tree->object.sha1));
278 v->s = s;
279 }
280 if (!strcmp(name, "numparent")) {
281 char *s = xmalloc(40);
282 v->ul = num_parents(commit);
283 sprintf(s, "%lu", v->ul);
284 v->s = s;
285 }
286 else if (!strcmp(name, "parent")) {
287 int num = num_parents(commit);
288 int i;
289 struct commit_list *parents;
290 char *s = xmalloc(41 * num + 1);
291 v->s = s;
292 for (i = 0, parents = commit->parents;
293 parents;
294 parents = parents->next, i = i + 41) {
295 struct commit *parent = parents->item;
296 strcpy(s+i, sha1_to_hex(parent->object.sha1));
297 if (parents->next)
298 s[i+40] = ' ';
299 }
300 if (!i)
301 *s = '\0';
302 }
303 }
304}
305static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz)
307{
308 const char *eol;
309 while (*buf) {
310 if (!strncmp(buf, who, wholen) &&
311 buf[wholen] == ' ')
312 return buf + wholen + 1;
313 eol = strchr(buf, '\n');
314 if (!eol)
315 return "";
316 eol++;
317 if (*eol == '\n')
318 return ""; /* end of header */
319 buf = eol;
320 }
321 return "";
322}
323static const char *copy_line(const char *buf)
325{
326 const char *eol = strchrnul(buf, '\n');
327 return xmemdupz(buf, eol - buf);
328}
329static const char *copy_name(const char *buf)
331{
332 const char *cp;
333 for (cp = buf; *cp && *cp != '\n'; cp++) {
334 if (!strncmp(cp, " <", 2))
335 return xmemdupz(buf, cp - buf);
336 }
337 return "";
338}
339static const char *copy_email(const char *buf)
341{
342 const char *email = strchr(buf, '<');
343 const char *eoemail;
344 if (!email)
345 return "";
346 eoemail = strchr(email, '>');
347 if (!eoemail)
348 return "";
349 return xmemdupz(email, eoemail + 1 - email);
350}
351static void grab_date(const char *buf, struct atom_value *v, const char *atomname)
353{
354 const char *eoemail = strstr(buf, "> ");
355 char *zone;
356 unsigned long timestamp;
357 long tz;
358 enum date_mode date_mode = DATE_NORMAL;
359 const char *formatp;
360 /*
362 * We got here because atomname ends in "date" or "date<something>";
363 * it's not possible that <something> is not ":<format>" because
364 * parse_atom() wouldn't have allowed it, so we can assume that no
365 * ":" means no format is specified, and use the default.
366 */
367 formatp = strchr(atomname, ':');
368 if (formatp != NULL) {
369 formatp++;
370 date_mode = parse_date_format(formatp);
371 }
372 if (!eoemail)
374 goto bad;
375 timestamp = strtoul(eoemail + 2, &zone, 10);
376 if (timestamp == ULONG_MAX)
377 goto bad;
378 tz = strtol(zone, NULL, 10);
379 if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE)
380 goto bad;
381 v->s = xstrdup(show_date(timestamp, tz, date_mode));
382 v->ul = timestamp;
383 return;
384 bad:
385 v->s = "";
386 v->ul = 0;
387}
388/* See grab_values */
390static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
391{
392 int i;
393 int wholen = strlen(who);
394 const char *wholine = NULL;
395 for (i = 0; i < used_atom_cnt; i++) {
397 const char *name = used_atom[i];
398 struct atom_value *v = &val[i];
399 if (!!deref != (*name == '*'))
400 continue;
401 if (deref)
402 name++;
403 if (strncmp(who, name, wholen))
404 continue;
405 if (name[wholen] != 0 &&
406 strcmp(name + wholen, "name") &&
407 strcmp(name + wholen, "email") &&
408 prefixcmp(name + wholen, "date"))
409 continue;
410 if (!wholine)
411 wholine = find_wholine(who, wholen, buf, sz);
412 if (!wholine)
413 return; /* no point looking for it */
414 if (name[wholen] == 0)
415 v->s = copy_line(wholine);
416 else if (!strcmp(name + wholen, "name"))
417 v->s = copy_name(wholine);
418 else if (!strcmp(name + wholen, "email"))
419 v->s = copy_email(wholine);
420 else if (!prefixcmp(name + wholen, "date"))
421 grab_date(wholine, v, name);
422 }
423 /*
425 * For a tag or a commit object, if "creator" or "creatordate" is
426 * requested, do something special.
427 */
428 if (strcmp(who, "tagger") && strcmp(who, "committer"))
429 return; /* "author" for commit object is not wanted */
430 if (!wholine)
431 wholine = find_wholine(who, wholen, buf, sz);
432 if (!wholine)
433 return;
434 for (i = 0; i < used_atom_cnt; i++) {
435 const char *name = used_atom[i];
436 struct atom_value *v = &val[i];
437 if (!!deref != (*name == '*'))
438 continue;
439 if (deref)
440 name++;
441 if (!prefixcmp(name, "creatordate"))
443 grab_date(wholine, v, name);
444 else if (!strcmp(name, "creator"))
445 v->s = copy_line(wholine);
446 }
447}
448static void find_subpos(const char *buf, unsigned long sz, const char **sub, const char **body)
450{
451 while (*buf) {
452 const char *eol = strchr(buf, '\n');
453 if (!eol)
454 return;
455 if (eol[1] == '\n') {
456 buf = eol + 1;
457 break; /* found end of header */
458 }
459 buf = eol + 1;
460 }
461 while (*buf == '\n')
462 buf++;
463 if (!*buf)
464 return;
465 *sub = buf; /* first non-empty line */
466 buf = strchr(buf, '\n');
467 if (!buf) {
468 *body = "";
469 return; /* no body */
470 }
471 while (*buf == '\n')
472 buf++; /* skip blank between subject and body */
473 *body = buf;
474}
475/* See grab_values */
477static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
478{
479 int i;
480 const char *subpos = NULL, *bodypos = NULL;
481 for (i = 0; i < used_atom_cnt; i++) {
483 const char *name = used_atom[i];
484 struct atom_value *v = &val[i];
485 if (!!deref != (*name == '*'))
486 continue;
487 if (deref)
488 name++;
489 if (strcmp(name, "subject") &&
490 strcmp(name, "body") &&
491 strcmp(name, "contents"))
492 continue;
493 if (!subpos)
494 find_subpos(buf, sz, &subpos, &bodypos);
495 if (!subpos)
496 return;
497 if (!strcmp(name, "subject"))
499 v->s = copy_line(subpos);
500 else if (!strcmp(name, "body"))
501 v->s = xstrdup(bodypos);
502 else if (!strcmp(name, "contents"))
503 v->s = xstrdup(subpos);
504 }
505}
506/*
508 * We want to have empty print-string for field requests
509 * that do not apply (e.g. "authordate" for a tag object)
510 */
511static void fill_missing_values(struct atom_value *val)
512{
513 int i;
514 for (i = 0; i < used_atom_cnt; i++) {
515 struct atom_value *v = &val[i];
516 if (v->s == NULL)
517 v->s = "";
518 }
519}
520/*
522 * val is a list of atom_value to hold returned values. Extract
523 * the values for atoms in used_atom array out of (obj, buf, sz).
524 * when deref is false, (obj, buf, sz) is the object that is
525 * pointed at by the ref itself; otherwise it is the object the
526 * ref (which is a tag) refers to.
527 */
528static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
529{
530 grab_common_values(val, deref, obj, buf, sz);
531 switch (obj->type) {
532 case OBJ_TAG:
533 grab_tag_values(val, deref, obj, buf, sz);
534 grab_sub_body_contents(val, deref, obj, buf, sz);
535 grab_person("tagger", val, deref, obj, buf, sz);
536 break;
537 case OBJ_COMMIT:
538 grab_commit_values(val, deref, obj, buf, sz);
539 grab_sub_body_contents(val, deref, obj, buf, sz);
540 grab_person("author", val, deref, obj, buf, sz);
541 grab_person("committer", val, deref, obj, buf, sz);
542 break;
543 case OBJ_TREE:
544 // grab_tree_values(val, deref, obj, buf, sz);
545 break;
546 case OBJ_BLOB:
547 // grab_blob_values(val, deref, obj, buf, sz);
548 break;
549 default:
550 die("Eh? Object of type %d?", obj->type);
551 }
552}
553/*
555 * Parse the object referred by ref, and grab needed value.
556 */
557static void populate_value(struct refinfo *ref)
558{
559 void *buf;
560 struct object *obj;
561 int eaten, i;
562 unsigned long size;
563 const unsigned char *tagged;
564 ref->value = xcalloc(sizeof(struct atom_value), used_atom_cnt);
566 /* Fill in specials first */
568 for (i = 0; i < used_atom_cnt; i++) {
569 const char *name = used_atom[i];
570 struct atom_value *v = &ref->value[i];
571 int deref = 0;
572 const char *refname;
573 const char *formatp;
574 if (*name == '*') {
576 deref = 1;
577 name++;
578 }
579 if (!prefixcmp(name, "refname"))
581 refname = ref->refname;
582 else if (!prefixcmp(name, "upstream")) {
583 struct branch *branch;
584 /* only local branches may have an upstream */
585 if (prefixcmp(ref->refname, "refs/heads/"))
586 continue;
587 branch = branch_get(ref->refname + 11);
588 if (!branch || !branch->merge || !branch->merge[0] ||
590 !branch->merge[0]->dst)
591 continue;
592 refname = branch->merge[0]->dst;
593 }
594 else
595 continue;
596 formatp = strchr(name, ':');
598 /* look for "short" refname format */
599 if (formatp) {
600 formatp++;
601 if (!strcmp(formatp, "short"))
602 refname = shorten_unambiguous_ref(refname,
603 warn_ambiguous_refs);
604 else
605 die("unknown %.*s format %s",
606 (int)(formatp - name), name, formatp);
607 }
608 if (!deref)
610 v->s = refname;
611 else {
612 int len = strlen(refname);
613 char *s = xmalloc(len + 4);
614 sprintf(s, "%s^{}", refname);
615 v->s = s;
616 }
617 }
618 for (i = 0; i < used_atom_cnt; i++) {
620 struct atom_value *v = &ref->value[i];
621 if (v->s == NULL)
622 goto need_obj;
623 }
624 return;
625 need_obj:
627 buf = get_obj(ref->objectname, &obj, &size, &eaten);
628 if (!buf)
629 die("missing object %s for %s",
630 sha1_to_hex(ref->objectname), ref->refname);
631 if (!obj)
632 die("parse_object_buffer failed on %s for %s",
633 sha1_to_hex(ref->objectname), ref->refname);
634 grab_values(ref->value, 0, obj, buf, size);
636 if (!eaten)
637 free(buf);
638 /*
640 * If there is no atom that wants to know about tagged
641 * object, we are done.
642 */
643 if (!need_tagged || (obj->type != OBJ_TAG))
644 return;
645 /*
647 * If it is a tag object, see if we use a value that derefs
648 * the object, and if we do grab the object it refers to.
649 */
650 tagged = ((struct tag *)obj)->tagged->sha1;
651 /*
653 * NEEDSWORK: This derefs tag only once, which
654 * is good to deal with chains of trust, but
655 * is not consistent with what deref_tag() does
656 * which peels the onion to the core.
657 */
658 buf = get_obj(tagged, &obj, &size, &eaten);
659 if (!buf)
660 die("missing object %s for %s",
661 sha1_to_hex(tagged), ref->refname);
662 if (!obj)
663 die("parse_object_buffer failed on %s for %s",
664 sha1_to_hex(tagged), ref->refname);
665 grab_values(ref->value, 1, obj, buf, size);
666 if (!eaten)
667 free(buf);
668}
669/*
671 * Given a ref, return the value for the atom. This lazily gets value
672 * out of the object by calling populate value.
673 */
674static void get_value(struct refinfo *ref, int atom, struct atom_value **v)
675{
676 if (!ref->value) {
677 populate_value(ref);
678 fill_missing_values(ref->value);
679 }
680 *v = &ref->value[atom];
681}
682struct grab_ref_cbdata {
684 struct refinfo **grab_array;
685 const char **grab_pattern;
686 int grab_cnt;
687};
688/*
690 * A call-back given to for_each_ref(). Filter refs and keep them for
691 * later object processing.
692 */
693static int grab_single_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
694{
695 struct grab_ref_cbdata *cb = cb_data;
696 struct refinfo *ref;
697 int cnt;
698 if (*cb->grab_pattern) {
700 const char **pattern;
701 int namelen = strlen(refname);
702 for (pattern = cb->grab_pattern; *pattern; pattern++) {
703 const char *p = *pattern;
704 int plen = strlen(p);
705 if ((plen <= namelen) &&
707 !strncmp(refname, p, plen) &&
708 (refname[plen] == '\0' ||
709 refname[plen] == '/' ||
710 p[plen-1] == '/'))
711 break;
712 if (!fnmatch(p, refname, FNM_PATHNAME))
713 break;
714 }
715 if (!*pattern)
716 return 0;
717 }
718 /*
720 * We do not open the object yet; sort may only need refname
721 * to do its job and the resulting list may yet to be pruned
722 * by maxcount logic.
723 */
724 ref = xcalloc(1, sizeof(*ref));
725 ref->refname = xstrdup(refname);
726 hashcpy(ref->objectname, sha1);
727 cnt = cb->grab_cnt;
729 cb->grab_array = xrealloc(cb->grab_array,
730 sizeof(*cb->grab_array) * (cnt + 1));
731 cb->grab_array[cnt++] = ref;
732 cb->grab_cnt = cnt;
733 return 0;
734}
735static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b)
737{
738 struct atom_value *va, *vb;
739 int cmp;
740 cmp_type cmp_type = used_atom_type[s->atom];
741 get_value(a, s->atom, &va);
743 get_value(b, s->atom, &vb);
744 switch (cmp_type) {
745 case FIELD_STR:
746 cmp = strcmp(va->s, vb->s);
747 break;
748 default:
749 if (va->ul < vb->ul)
750 cmp = -1;
751 else if (va->ul == vb->ul)
752 cmp = 0;
753 else
754 cmp = 1;
755 break;
756 }
757 return (s->reverse) ? -cmp : cmp;
758}
759static struct ref_sort *ref_sort;
761static int compare_refs(const void *a_, const void *b_)
762{
763 struct refinfo *a = *((struct refinfo **)a_);
764 struct refinfo *b = *((struct refinfo **)b_);
765 struct ref_sort *s;
766 for (s = ref_sort; s; s = s->next) {
768 int cmp = cmp_ref_sort(s, a, b);
769 if (cmp)
770 return cmp;
771 }
772 return 0;
773}
774static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs)
776{
777 ref_sort = sort;
778 qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs);
779}
780static void print_value(struct refinfo *ref, int atom, int quote_style)
782{
783 struct atom_value *v;
784 get_value(ref, atom, &v);
785 switch (quote_style) {
786 case QUOTE_NONE:
787 fputs(v->s, stdout);
788 break;
789 case QUOTE_SHELL:
790 sq_quote_print(stdout, v->s);
791 break;
792 case QUOTE_PERL:
793 perl_quote_print(stdout, v->s);
794 break;
795 case QUOTE_PYTHON:
796 python_quote_print(stdout, v->s);
797 break;
798 case QUOTE_TCL:
799 tcl_quote_print(stdout, v->s);
800 break;
801 }
802}
803static int hex1(char ch)
805{
806 if ('0' <= ch && ch <= '9')
807 return ch - '0';
808 else if ('a' <= ch && ch <= 'f')
809 return ch - 'a' + 10;
810 else if ('A' <= ch && ch <= 'F')
811 return ch - 'A' + 10;
812 return -1;
813}
814static int hex2(const char *cp)
815{
816 if (cp[0] && cp[1])
817 return (hex1(cp[0]) << 4) | hex1(cp[1]);
818 else
819 return -1;
820}
821static void emit(const char *cp, const char *ep)
823{
824 while (*cp && (!ep || cp < ep)) {
825 if (*cp == '%') {
826 if (cp[1] == '%')
827 cp++;
828 else {
829 int ch = hex2(cp + 1);
830 if (0 <= ch) {
831 putchar(ch);
832 cp += 3;
833 continue;
834 }
835 }
836 }
837 putchar(*cp);
838 cp++;
839 }
840}
841static void show_ref(struct refinfo *info, const char *format, int quote_style)
843{
844 const char *cp, *sp, *ep;
845 for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) {
847 ep = strchr(sp, ')');
848 if (cp < sp)
849 emit(cp, sp);
850 print_value(info, parse_atom(sp + 2, ep), quote_style);
851 }
852 if (*cp) {
853 sp = cp + strlen(cp);
854 emit(cp, sp);
855 }
856 putchar('\n');
857}
858static struct ref_sort *default_sort(void)
860{
861 static const char cstr_name[] = "refname";
862 struct ref_sort *sort = xcalloc(1, sizeof(*sort));
864 sort->next = NULL;
866 sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name));
867 return sort;
868}
869static int opt_parse_sort(const struct option *opt, const char *arg, int unset)
871{
872 struct ref_sort **sort_tail = opt->value;
873 struct ref_sort *s;
874 int len;
875 if (!arg) /* should --no-sort void the list ? */
877 return -1;
878 *sort_tail = s = xcalloc(1, sizeof(*s));
880 if (*arg == '-') {
882 s->reverse = 1;
883 arg++;
884 }
885 len = strlen(arg);
886 s->atom = parse_atom(arg, arg+len);
887 return 0;
888}
889static char const * const for_each_ref_usage[] = {
891 "git for-each-ref [options] [<pattern>]",
892 NULL
893};
894int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
896{
897 int i, num_refs;
898 const char *format = "%(objectname) %(objecttype)\t%(refname)";
899 struct ref_sort *sort = NULL, **sort_tail = &sort;
900 int maxcount = 0, quote_style = 0;
901 struct refinfo **refs;
902 struct grab_ref_cbdata cbdata;
903 struct option opts[] = {
905 OPT_BIT('s', "shell", "e_style,
906 "quote placeholders suitably for shells", QUOTE_SHELL),
907 OPT_BIT('p', "perl", "e_style,
908 "quote placeholders suitably for perl", QUOTE_PERL),
909 OPT_BIT(0 , "python", "e_style,
910 "quote placeholders suitably for python", QUOTE_PYTHON),
911 OPT_BIT(0 , "tcl", "e_style,
912 "quote placeholders suitably for tcl", QUOTE_TCL),
913 OPT_GROUP(""),
915 OPT_INTEGER( 0 , "count", &maxcount, "show only <n> matched refs"),
916 OPT_STRING( 0 , "format", &format, "format", "format to use for the output"),
917 OPT_CALLBACK(0 , "sort", sort_tail, "key",
918 "field name to sort on", &opt_parse_sort),
919 OPT_END(),
920 };
921 parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0);
923 if (maxcount < 0) {
924 error("invalid --count argument: `%d'", maxcount);
925 usage_with_options(for_each_ref_usage, opts);
926 }
927 if (HAS_MULTI_BITS(quote_style)) {
928 error("more than one quoting style?");
929 usage_with_options(for_each_ref_usage, opts);
930 }
931 if (verify_format(format))
932 usage_with_options(for_each_ref_usage, opts);
933 if (!sort)
935 sort = default_sort();
936 sort_atom_limit = used_atom_cnt;
937 /* for warn_ambiguous_refs */
939 git_config(git_default_config, NULL);
940 memset(&cbdata, 0, sizeof(cbdata));
942 cbdata.grab_pattern = argv;
943 for_each_rawref(grab_single_ref, &cbdata);
944 refs = cbdata.grab_array;
945 num_refs = cbdata.grab_cnt;
946 for (i = 0; i < used_atom_cnt; i++) {
948 if (used_atom[i][0] == '*') {
949 need_tagged = 1;
950 break;
951 }
952 }
953 sort_refs(sort, refs, num_refs);
955 if (!maxcount || num_refs < maxcount)
957 maxcount = num_refs;
958 for (i = 0; i < maxcount; i++)
959 show_ref(refs[i], format, quote_style);
960 return 0;
961}