10 #include "parse-options.h"
18 #define QUOTE_PYTHON 4
21 typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type;
25 unsigned long ul; /* used for sorting when not FIELD_STR */
29 struct ref_sort *next;
30 int atom; /* index into used_atom array */
36 unsigned char objectname[20];
39 struct atom_value *value;
48 { "objectsize", FIELD_ULONG },
52 { "numparent", FIELD_ULONG },
59 { "authordate", FIELD_TIME },
63 { "committerdate", FIELD_TIME },
67 { "taggerdate", FIELD_TIME },
69 { "creatordate", FIELD_TIME },
73 { "contents:subject" },
75 { "contents:signature" },
85 * An atom is a valid field atom listed above, possibly prefixed with
86 * a "*" to denote deref_tag().
88 * We parse given format string and sort specifiers, and make a list
89 * of properties that we need to extract out of objects. refinfo
90 * structure will hold an array of values extracted that can be
91 * indexed with the "atom number", which is an index into this
94 static const char **used_atom;
95 static cmp_type *used_atom_type;
96 static int used_atom_cnt, need_tagged, need_symref;
97 static int need_color_reset_at_eol;
100 * Used to parse format string and sort specifiers
102 static int parse_atom(const char *atom, const char *ep)
108 if (*sp == '*' && sp < ep)
111 die("malformed field name: %.*s", (int)(ep-atom), atom);
113 /* Do we have the atom already used elsewhere? */
114 for (i = 0; i < used_atom_cnt; i++) {
115 int len = strlen(used_atom[i]);
116 if (len == ep - atom && !memcmp(used_atom[i], atom, len))
120 /* Is the atom a valid one? */
121 for (i = 0; i < ARRAY_SIZE(valid_atom); i++) {
122 int len = strlen(valid_atom[i].name);
124 * If the atom name has a colon, strip it and everything after
125 * it off - it specifies the format for this entry, and
126 * shouldn't be used for checking against the valid_atom
129 const char *formatp = strchr(sp, ':');
130 if (!formatp || ep < formatp)
132 if (len == formatp - sp && !memcmp(valid_atom[i].name, sp, len))
136 if (ARRAY_SIZE(valid_atom) <= i)
137 die("unknown field name: %.*s", (int)(ep-atom), atom);
139 /* Add it in, including the deref prefix */
142 REALLOC_ARRAY(used_atom, used_atom_cnt);
143 REALLOC_ARRAY(used_atom_type, used_atom_cnt);
144 used_atom[at] = xmemdupz(atom, ep - atom);
145 used_atom_type[at] = valid_atom[i].cmp_type;
148 if (!strcmp(used_atom[at], "symref"))
154 * In a format string, find the next occurrence of %(atom).
156 static const char *find_next(const char *cp)
161 * %( is the start of an atom;
162 * %% is a quoted per-cent.
166 else if (cp[1] == '%')
167 cp++; /* skip over two % */
168 /* otherwise this is a singleton, literal % */
176 * Make sure the format string is well formed, and parse out
179 static int verify_format(const char *format)
183 need_color_reset_at_eol = 0;
184 for (cp = format; *cp && (sp = find_next(cp)); ) {
185 const char *color, *ep = strchr(sp, ')');
189 return error("malformed format string %s", sp);
190 /* sp points at "%(" and ep points at the closing ")" */
191 at = parse_atom(sp + 2, ep);
194 if (skip_prefix(used_atom[at], "color:", &color))
195 need_color_reset_at_eol = !!strcmp(color, "reset");
201 * Given an object name, read the object data and size, and return a
202 * "struct object". If the object data we are returning is also borrowed
203 * by the "struct object" representation, set *eaten as well---it is a
204 * signal from parse_object_buffer to us not to free the buffer.
206 static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten)
208 enum object_type type;
209 void *buf = read_sha1_file(sha1, &type, sz);
212 *obj = parse_object_buffer(sha1, type, *sz, buf, eaten);
218 static int grab_objectname(const char *name, const unsigned char *sha1,
219 struct atom_value *v)
221 if (!strcmp(name, "objectname")) {
222 char *s = xmalloc(41);
223 strcpy(s, sha1_to_hex(sha1));
227 if (!strcmp(name, "objectname:short")) {
228 v->s = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV));
234 /* See grab_values */
235 static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
239 for (i = 0; i < used_atom_cnt; i++) {
240 const char *name = used_atom[i];
241 struct atom_value *v = &val[i];
242 if (!!deref != (*name == '*'))
246 if (!strcmp(name, "objecttype"))
247 v->s = typename(obj->type);
248 else if (!strcmp(name, "objectsize")) {
249 char *s = xmalloc(40);
250 sprintf(s, "%lu", sz);
255 grab_objectname(name, obj->sha1, v);
259 /* See grab_values */
260 static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
263 struct tag *tag = (struct tag *) obj;
265 for (i = 0; i < used_atom_cnt; i++) {
266 const char *name = used_atom[i];
267 struct atom_value *v = &val[i];
268 if (!!deref != (*name == '*'))
272 if (!strcmp(name, "tag"))
274 else if (!strcmp(name, "type") && tag->tagged)
275 v->s = typename(tag->tagged->type);
276 else if (!strcmp(name, "object") && tag->tagged) {
277 char *s = xmalloc(41);
278 strcpy(s, sha1_to_hex(tag->tagged->sha1));
284 /* See grab_values */
285 static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
288 struct commit *commit = (struct commit *) obj;
290 for (i = 0; i < used_atom_cnt; i++) {
291 const char *name = used_atom[i];
292 struct atom_value *v = &val[i];
293 if (!!deref != (*name == '*'))
297 if (!strcmp(name, "tree")) {
298 char *s = xmalloc(41);
299 strcpy(s, sha1_to_hex(commit->tree->object.sha1));
302 if (!strcmp(name, "numparent")) {
303 char *s = xmalloc(40);
304 v->ul = commit_list_count(commit->parents);
305 sprintf(s, "%lu", v->ul);
308 else if (!strcmp(name, "parent")) {
309 int num = commit_list_count(commit->parents);
311 struct commit_list *parents;
312 char *s = xmalloc(41 * num + 1);
314 for (i = 0, parents = commit->parents;
316 parents = parents->next, i = i + 41) {
317 struct commit *parent = parents->item;
318 strcpy(s+i, sha1_to_hex(parent->object.sha1));
328 static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz)
332 if (!strncmp(buf, who, wholen) &&
334 return buf + wholen + 1;
335 eol = strchr(buf, '\n');
340 return ""; /* end of header */
346 static const char *copy_line(const char *buf)
348 const char *eol = strchrnul(buf, '\n');
349 return xmemdupz(buf, eol - buf);
352 static const char *copy_name(const char *buf)
355 for (cp = buf; *cp && *cp != '\n'; cp++) {
356 if (!strncmp(cp, " <", 2))
357 return xmemdupz(buf, cp - buf);
362 static const char *copy_email(const char *buf)
364 const char *email = strchr(buf, '<');
368 eoemail = strchr(email, '>');
371 return xmemdupz(email, eoemail + 1 - email);
374 static char *copy_subject(const char *buf, unsigned long len)
376 char *r = xmemdupz(buf, len);
379 for (i = 0; i < len; i++)
386 static void grab_date(const char *buf, struct atom_value *v, const char *atomname)
388 const char *eoemail = strstr(buf, "> ");
390 unsigned long timestamp;
392 enum date_mode date_mode = DATE_NORMAL;
396 * We got here because atomname ends in "date" or "date<something>";
397 * it's not possible that <something> is not ":<format>" because
398 * parse_atom() wouldn't have allowed it, so we can assume that no
399 * ":" means no format is specified, and use the default.
401 formatp = strchr(atomname, ':');
402 if (formatp != NULL) {
404 date_mode = parse_date_format(formatp);
409 timestamp = strtoul(eoemail + 2, &zone, 10);
410 if (timestamp == ULONG_MAX)
412 tz = strtol(zone, NULL, 10);
413 if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE)
415 v->s = xstrdup(show_date(timestamp, tz, date_mode));
423 /* See grab_values */
424 static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
427 int wholen = strlen(who);
428 const char *wholine = NULL;
430 for (i = 0; i < used_atom_cnt; i++) {
431 const char *name = used_atom[i];
432 struct atom_value *v = &val[i];
433 if (!!deref != (*name == '*'))
437 if (strncmp(who, name, wholen))
439 if (name[wholen] != 0 &&
440 strcmp(name + wholen, "name") &&
441 strcmp(name + wholen, "email") &&
442 !starts_with(name + wholen, "date"))
445 wholine = find_wholine(who, wholen, buf, sz);
447 return; /* no point looking for it */
448 if (name[wholen] == 0)
449 v->s = copy_line(wholine);
450 else if (!strcmp(name + wholen, "name"))
451 v->s = copy_name(wholine);
452 else if (!strcmp(name + wholen, "email"))
453 v->s = copy_email(wholine);
454 else if (starts_with(name + wholen, "date"))
455 grab_date(wholine, v, name);
459 * For a tag or a commit object, if "creator" or "creatordate" is
460 * requested, do something special.
462 if (strcmp(who, "tagger") && strcmp(who, "committer"))
463 return; /* "author" for commit object is not wanted */
465 wholine = find_wholine(who, wholen, buf, sz);
468 for (i = 0; i < used_atom_cnt; i++) {
469 const char *name = used_atom[i];
470 struct atom_value *v = &val[i];
471 if (!!deref != (*name == '*'))
476 if (starts_with(name, "creatordate"))
477 grab_date(wholine, v, name);
478 else if (!strcmp(name, "creator"))
479 v->s = copy_line(wholine);
483 static void find_subpos(const char *buf, unsigned long sz,
484 const char **sub, unsigned long *sublen,
485 const char **body, unsigned long *bodylen,
486 unsigned long *nonsiglen,
487 const char **sig, unsigned long *siglen)
490 /* skip past header until we hit empty line */
491 while (*buf && *buf != '\n') {
492 eol = strchrnul(buf, '\n');
497 /* skip any empty lines */
501 /* parse signature first; we might not even have a subject line */
502 *sig = buf + parse_signature(buf, strlen(buf));
503 *siglen = strlen(*sig);
505 /* subject is first non-empty line */
507 /* subject goes to first empty line */
508 while (buf < *sig && *buf && *buf != '\n') {
509 eol = strchrnul(buf, '\n');
514 *sublen = buf - *sub;
515 /* drop trailing newline, if present */
516 if (*sublen && (*sub)[*sublen - 1] == '\n')
519 /* skip any empty lines */
523 *bodylen = strlen(buf);
524 *nonsiglen = *sig - buf;
527 /* See grab_values */
528 static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
531 const char *subpos = NULL, *bodypos = NULL, *sigpos = NULL;
532 unsigned long sublen = 0, bodylen = 0, nonsiglen = 0, siglen = 0;
534 for (i = 0; i < used_atom_cnt; i++) {
535 const char *name = used_atom[i];
536 struct atom_value *v = &val[i];
537 if (!!deref != (*name == '*'))
541 if (strcmp(name, "subject") &&
542 strcmp(name, "body") &&
543 strcmp(name, "contents") &&
544 strcmp(name, "contents:subject") &&
545 strcmp(name, "contents:body") &&
546 strcmp(name, "contents:signature"))
551 &bodypos, &bodylen, &nonsiglen,
554 if (!strcmp(name, "subject"))
555 v->s = copy_subject(subpos, sublen);
556 else if (!strcmp(name, "contents:subject"))
557 v->s = copy_subject(subpos, sublen);
558 else if (!strcmp(name, "body"))
559 v->s = xmemdupz(bodypos, bodylen);
560 else if (!strcmp(name, "contents:body"))
561 v->s = xmemdupz(bodypos, nonsiglen);
562 else if (!strcmp(name, "contents:signature"))
563 v->s = xmemdupz(sigpos, siglen);
564 else if (!strcmp(name, "contents"))
565 v->s = xstrdup(subpos);
570 * We want to have empty print-string for field requests
571 * that do not apply (e.g. "authordate" for a tag object)
573 static void fill_missing_values(struct atom_value *val)
576 for (i = 0; i < used_atom_cnt; i++) {
577 struct atom_value *v = &val[i];
584 * val is a list of atom_value to hold returned values. Extract
585 * the values for atoms in used_atom array out of (obj, buf, sz).
586 * when deref is false, (obj, buf, sz) is the object that is
587 * pointed at by the ref itself; otherwise it is the object the
588 * ref (which is a tag) refers to.
590 static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz)
592 grab_common_values(val, deref, obj, buf, sz);
595 grab_tag_values(val, deref, obj, buf, sz);
596 grab_sub_body_contents(val, deref, obj, buf, sz);
597 grab_person("tagger", val, deref, obj, buf, sz);
600 grab_commit_values(val, deref, obj, buf, sz);
601 grab_sub_body_contents(val, deref, obj, buf, sz);
602 grab_person("author", val, deref, obj, buf, sz);
603 grab_person("committer", val, deref, obj, buf, sz);
606 /* grab_tree_values(val, deref, obj, buf, sz); */
609 /* grab_blob_values(val, deref, obj, buf, sz); */
612 die("Eh? Object of type %d?", obj->type);
616 static inline char *copy_advance(char *dst, const char *src)
624 * Parse the object referred by ref, and grab needed value.
626 static void populate_value(struct refinfo *ref)
632 const unsigned char *tagged;
634 ref->value = xcalloc(used_atom_cnt, sizeof(struct atom_value));
636 if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) {
637 unsigned char unused1[20];
638 ref->symref = resolve_refdup(ref->refname, RESOLVE_REF_READING,
644 /* Fill in specials first */
645 for (i = 0; i < used_atom_cnt; i++) {
646 const char *name = used_atom[i];
647 struct atom_value *v = &ref->value[i];
651 struct branch *branch = NULL;
658 if (starts_with(name, "refname"))
659 refname = ref->refname;
660 else if (starts_with(name, "symref"))
661 refname = ref->symref ? ref->symref : "";
662 else if (starts_with(name, "upstream")) {
663 const char *branch_name;
664 /* only local branches may have an upstream */
665 if (!skip_prefix(ref->refname, "refs/heads/",
668 branch = branch_get(branch_name);
670 refname = branch_get_upstream(branch, NULL);
673 } else if (starts_with(name, "push")) {
674 const char *branch_name;
675 if (!skip_prefix(ref->refname, "refs/heads/",
678 branch = branch_get(branch_name);
680 refname = branch_get_push(branch, NULL);
683 } else if (starts_with(name, "color:")) {
684 char color[COLOR_MAXLEN] = "";
686 if (color_parse(name + 6, color) < 0)
687 die(_("unable to parse format"));
688 v->s = xstrdup(color);
690 } else if (!strcmp(name, "flag")) {
691 char buf[256], *cp = buf;
692 if (ref->flag & REF_ISSYMREF)
693 cp = copy_advance(cp, ",symref");
694 if (ref->flag & REF_ISPACKED)
695 cp = copy_advance(cp, ",packed");
700 v->s = xstrdup(buf + 1);
703 } else if (!deref && grab_objectname(name, ref->objectname, v)) {
705 } else if (!strcmp(name, "HEAD")) {
707 unsigned char sha1[20];
709 head = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING,
711 if (!strcmp(ref->refname, head))
719 formatp = strchr(name, ':');
721 int num_ours, num_theirs;
724 if (!strcmp(formatp, "short"))
725 refname = shorten_unambiguous_ref(refname,
726 warn_ambiguous_refs);
727 else if (!strcmp(formatp, "track") &&
728 (starts_with(name, "upstream") ||
729 starts_with(name, "push"))) {
732 if (stat_tracking_info(branch, &num_ours,
736 if (!num_ours && !num_theirs)
738 else if (!num_ours) {
739 sprintf(buf, "[behind %d]", num_theirs);
741 } else if (!num_theirs) {
742 sprintf(buf, "[ahead %d]", num_ours);
745 sprintf(buf, "[ahead %d, behind %d]",
746 num_ours, num_theirs);
750 } else if (!strcmp(formatp, "trackshort") &&
751 (starts_with(name, "upstream") ||
752 starts_with(name, "push"))) {
755 if (stat_tracking_info(branch, &num_ours,
759 if (!num_ours && !num_theirs)
763 else if (!num_theirs)
769 die("unknown %.*s format %s",
770 (int)(formatp - name), name, formatp);
776 int len = strlen(refname);
777 char *s = xmalloc(len + 4);
778 sprintf(s, "%s^{}", refname);
783 for (i = 0; i < used_atom_cnt; i++) {
784 struct atom_value *v = &ref->value[i];
791 buf = get_obj(ref->objectname, &obj, &size, &eaten);
793 die("missing object %s for %s",
794 sha1_to_hex(ref->objectname), ref->refname);
796 die("parse_object_buffer failed on %s for %s",
797 sha1_to_hex(ref->objectname), ref->refname);
799 grab_values(ref->value, 0, obj, buf, size);
804 * If there is no atom that wants to know about tagged
805 * object, we are done.
807 if (!need_tagged || (obj->type != OBJ_TAG))
811 * If it is a tag object, see if we use a value that derefs
812 * the object, and if we do grab the object it refers to.
814 tagged = ((struct tag *)obj)->tagged->sha1;
817 * NEEDSWORK: This derefs tag only once, which
818 * is good to deal with chains of trust, but
819 * is not consistent with what deref_tag() does
820 * which peels the onion to the core.
822 buf = get_obj(tagged, &obj, &size, &eaten);
824 die("missing object %s for %s",
825 sha1_to_hex(tagged), ref->refname);
827 die("parse_object_buffer failed on %s for %s",
828 sha1_to_hex(tagged), ref->refname);
829 grab_values(ref->value, 1, obj, buf, size);
835 * Given a ref, return the value for the atom. This lazily gets value
836 * out of the object by calling populate value.
838 static void get_value(struct refinfo *ref, int atom, struct atom_value **v)
842 fill_missing_values(ref->value);
844 *v = &ref->value[atom];
847 struct grab_ref_cbdata {
848 struct refinfo **grab_array;
849 const char **grab_pattern;
854 * A call-back given to for_each_ref(). Filter refs and keep them for
855 * later object processing.
857 static int grab_single_ref(const char *refname, const struct object_id *oid,
858 int flag, void *cb_data)
860 struct grab_ref_cbdata *cb = cb_data;
864 if (flag & REF_BAD_NAME) {
865 warning("ignoring ref with broken name %s", refname);
869 if (flag & REF_ISBROKEN) {
870 warning("ignoring broken ref %s", refname);
874 if (*cb->grab_pattern) {
875 const char **pattern;
876 int namelen = strlen(refname);
877 for (pattern = cb->grab_pattern; *pattern; pattern++) {
878 const char *p = *pattern;
879 int plen = strlen(p);
881 if ((plen <= namelen) &&
882 !strncmp(refname, p, plen) &&
883 (refname[plen] == '\0' ||
884 refname[plen] == '/' ||
887 if (!wildmatch(p, refname, WM_PATHNAME, NULL))
895 * We do not open the object yet; sort may only need refname
896 * to do its job and the resulting list may yet to be pruned
899 ref = xcalloc(1, sizeof(*ref));
900 ref->refname = xstrdup(refname);
901 hashcpy(ref->objectname, oid->hash);
905 REALLOC_ARRAY(cb->grab_array, cnt + 1);
906 cb->grab_array[cnt++] = ref;
911 static int cmp_ref_sort(struct ref_sort *s, struct refinfo *a, struct refinfo *b)
913 struct atom_value *va, *vb;
915 cmp_type cmp_type = used_atom_type[s->atom];
917 get_value(a, s->atom, &va);
918 get_value(b, s->atom, &vb);
921 cmp = strcmp(va->s, vb->s);
926 else if (va->ul == vb->ul)
932 return (s->reverse) ? -cmp : cmp;
935 static struct ref_sort *ref_sort;
936 static int compare_refs(const void *a_, const void *b_)
938 struct refinfo *a = *((struct refinfo **)a_);
939 struct refinfo *b = *((struct refinfo **)b_);
942 for (s = ref_sort; s; s = s->next) {
943 int cmp = cmp_ref_sort(s, a, b);
950 static void sort_refs(struct ref_sort *sort, struct refinfo **refs, int num_refs)
953 qsort(refs, num_refs, sizeof(struct refinfo *), compare_refs);
956 static void print_value(struct atom_value *v, int quote_style)
958 struct strbuf sb = STRBUF_INIT;
959 switch (quote_style) {
964 sq_quote_buf(&sb, v->s);
967 perl_quote_buf(&sb, v->s);
970 python_quote_buf(&sb, v->s);
973 tcl_quote_buf(&sb, v->s);
976 if (quote_style != QUOTE_NONE) {
977 fputs(sb.buf, stdout);
982 static int hex1(char ch)
984 if ('0' <= ch && ch <= '9')
986 else if ('a' <= ch && ch <= 'f')
987 return ch - 'a' + 10;
988 else if ('A' <= ch && ch <= 'F')
989 return ch - 'A' + 10;
992 static int hex2(const char *cp)
995 return (hex1(cp[0]) << 4) | hex1(cp[1]);
1000 static void emit(const char *cp, const char *ep)
1002 while (*cp && (!ep || cp < ep)) {
1007 int ch = hex2(cp + 1);
1020 static void show_ref(struct refinfo *info, const char *format, int quote_style)
1022 const char *cp, *sp, *ep;
1024 for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) {
1025 struct atom_value *atomv;
1027 ep = strchr(sp, ')');
1030 get_value(info, parse_atom(sp + 2, ep), &atomv);
1031 print_value(atomv, quote_style);
1034 sp = cp + strlen(cp);
1037 if (need_color_reset_at_eol) {
1038 struct atom_value resetv;
1039 char color[COLOR_MAXLEN] = "";
1041 if (color_parse("reset", color) < 0)
1042 die("BUG: couldn't parse 'reset' as a color");
1044 print_value(&resetv, quote_style);
1049 static struct ref_sort *default_sort(void)
1051 static const char cstr_name[] = "refname";
1053 struct ref_sort *sort = xcalloc(1, sizeof(*sort));
1056 sort->atom = parse_atom(cstr_name, cstr_name + strlen(cstr_name));
1060 static int opt_parse_sort(const struct option *opt, const char *arg, int unset)
1062 struct ref_sort **sort_tail = opt->value;
1066 if (!arg) /* should --no-sort void the list ? */
1069 s = xcalloc(1, sizeof(*s));
1070 s->next = *sort_tail;
1078 s->atom = parse_atom(arg, arg+len);
1082 static char const * const for_each_ref_usage[] = {
1083 N_("git for-each-ref [<options>] [<pattern>]"),
1087 int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
1090 const char *format = "%(objectname) %(objecttype)\t%(refname)";
1091 struct ref_sort *sort = NULL, **sort_tail = &sort;
1092 int maxcount = 0, quote_style = 0;
1093 struct refinfo **refs;
1094 struct grab_ref_cbdata cbdata;
1096 struct option opts[] = {
1097 OPT_BIT('s', "shell", "e_style,
1098 N_("quote placeholders suitably for shells"), QUOTE_SHELL),
1099 OPT_BIT('p', "perl", "e_style,
1100 N_("quote placeholders suitably for perl"), QUOTE_PERL),
1101 OPT_BIT(0 , "python", "e_style,
1102 N_("quote placeholders suitably for python"), QUOTE_PYTHON),
1103 OPT_BIT(0 , "tcl", "e_style,
1104 N_("quote placeholders suitably for Tcl"), QUOTE_TCL),
1107 OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")),
1108 OPT_STRING( 0 , "format", &format, N_("format"), N_("format to use for the output")),
1109 OPT_CALLBACK(0 , "sort", sort_tail, N_("key"),
1110 N_("field name to sort on"), &opt_parse_sort),
1114 parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0);
1116 error("invalid --count argument: `%d'", maxcount);
1117 usage_with_options(for_each_ref_usage, opts);
1119 if (HAS_MULTI_BITS(quote_style)) {
1120 error("more than one quoting style?");
1121 usage_with_options(for_each_ref_usage, opts);
1123 if (verify_format(format))
1124 usage_with_options(for_each_ref_usage, opts);
1127 sort = default_sort();
1129 /* for warn_ambiguous_refs */
1130 git_config(git_default_config, NULL);
1132 memset(&cbdata, 0, sizeof(cbdata));
1133 cbdata.grab_pattern = argv;
1134 for_each_rawref(grab_single_ref, &cbdata);
1135 refs = cbdata.grab_array;
1136 num_refs = cbdata.grab_cnt;
1138 sort_refs(sort, refs, num_refs);
1140 if (!maxcount || num_refs < maxcount)
1141 maxcount = num_refs;
1142 for (i = 0; i < maxcount; i++)
1143 show_ref(refs[i], format, quote_style);