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c95b7585 KN |
1 | #include "builtin.h" |
2 | #include "cache.h" | |
3 | #include "parse-options.h" | |
4 | #include "refs.h" | |
5 | #include "wildmatch.h" | |
6 | #include "commit.h" | |
7 | #include "remote.h" | |
8 | #include "color.h" | |
9 | #include "tag.h" | |
10 | #include "quote.h" | |
11 | #include "ref-filter.h" | |
35257aa0 | 12 | #include "revision.h" |
ce592082 | 13 | #include "utf8.h" |
90c00408 KN |
14 | #include "git-compat-util.h" |
15 | #include "version.h" | |
c95b7585 KN |
16 | |
17 | typedef enum { FIELD_STR, FIELD_ULONG, FIELD_TIME } cmp_type; | |
18 | ||
50cd83dc KN |
19 | /* |
20 | * An atom is a valid field atom listed below, possibly prefixed with | |
21 | * a "*" to denote deref_tag(). | |
22 | * | |
23 | * We parse given format string and sort specifiers, and make a list | |
24 | * of properties that we need to extract out of objects. ref_array_item | |
25 | * structure will hold an array of values extracted that can be | |
26 | * indexed with the "atom number", which is an index into this | |
27 | * array. | |
28 | */ | |
b072add7 KN |
29 | static struct used_atom { |
30 | const char *name; | |
31 | cmp_type type; | |
fd935cc7 KN |
32 | union { |
33 | char color[COLOR_MAXLEN]; | |
34 | } u; | |
b072add7 | 35 | } *used_atom; |
50cd83dc KN |
36 | static int used_atom_cnt, need_tagged, need_symref; |
37 | static int need_color_reset_at_eol; | |
38 | ||
fd935cc7 KN |
39 | static void color_atom_parser(struct used_atom *atom, const char *color_value) |
40 | { | |
41 | if (!color_value) | |
42 | die(_("expected format: %%(color:<color>)")); | |
43 | if (color_parse(color_value, atom->u.color) < 0) | |
44 | die(_("unrecognized color: %%(color:%s)"), color_value); | |
45 | } | |
46 | ||
25a8d79e KN |
47 | static align_type parse_align_position(const char *s) |
48 | { | |
49 | if (!strcmp(s, "right")) | |
50 | return ALIGN_RIGHT; | |
51 | else if (!strcmp(s, "middle")) | |
52 | return ALIGN_MIDDLE; | |
53 | else if (!strcmp(s, "left")) | |
54 | return ALIGN_LEFT; | |
55 | return -1; | |
56 | } | |
57 | ||
c95b7585 KN |
58 | static struct { |
59 | const char *name; | |
60 | cmp_type cmp_type; | |
4de707ea | 61 | void (*parser)(struct used_atom *atom, const char *arg); |
c95b7585 KN |
62 | } valid_atom[] = { |
63 | { "refname" }, | |
64 | { "objecttype" }, | |
65 | { "objectsize", FIELD_ULONG }, | |
66 | { "objectname" }, | |
67 | { "tree" }, | |
68 | { "parent" }, | |
69 | { "numparent", FIELD_ULONG }, | |
70 | { "object" }, | |
71 | { "type" }, | |
72 | { "tag" }, | |
73 | { "author" }, | |
74 | { "authorname" }, | |
75 | { "authoremail" }, | |
76 | { "authordate", FIELD_TIME }, | |
77 | { "committer" }, | |
78 | { "committername" }, | |
79 | { "committeremail" }, | |
80 | { "committerdate", FIELD_TIME }, | |
81 | { "tagger" }, | |
82 | { "taggername" }, | |
83 | { "taggeremail" }, | |
84 | { "taggerdate", FIELD_TIME }, | |
85 | { "creator" }, | |
86 | { "creatordate", FIELD_TIME }, | |
87 | { "subject" }, | |
88 | { "body" }, | |
89 | { "contents" }, | |
c95b7585 KN |
90 | { "upstream" }, |
91 | { "push" }, | |
92 | { "symref" }, | |
93 | { "flag" }, | |
94 | { "HEAD" }, | |
fd935cc7 | 95 | { "color", FIELD_STR, color_atom_parser }, |
ce592082 KN |
96 | { "align" }, |
97 | { "end" }, | |
c95b7585 KN |
98 | }; |
99 | ||
574e96a2 KN |
100 | #define REF_FORMATTING_STATE_INIT { 0, NULL } |
101 | ||
ce592082 KN |
102 | struct align { |
103 | align_type position; | |
104 | unsigned int width; | |
105 | }; | |
106 | ||
1bb38e5a KN |
107 | struct contents { |
108 | unsigned int lines; | |
109 | struct object_id oid; | |
110 | }; | |
111 | ||
574e96a2 KN |
112 | struct ref_formatting_stack { |
113 | struct ref_formatting_stack *prev; | |
114 | struct strbuf output; | |
ce592082 KN |
115 | void (*at_end)(struct ref_formatting_stack *stack); |
116 | void *at_end_data; | |
574e96a2 KN |
117 | }; |
118 | ||
119 | struct ref_formatting_state { | |
120 | int quote_style; | |
121 | struct ref_formatting_stack *stack; | |
122 | }; | |
123 | ||
3a25761a KN |
124 | struct atom_value { |
125 | const char *s; | |
ce592082 KN |
126 | union { |
127 | struct align align; | |
1bb38e5a | 128 | struct contents contents; |
ce592082 | 129 | } u; |
63d89fbc | 130 | void (*handler)(struct atom_value *atomv, struct ref_formatting_state *state); |
3a25761a KN |
131 | unsigned long ul; /* used for sorting when not FIELD_STR */ |
132 | }; | |
133 | ||
c95b7585 KN |
134 | /* |
135 | * Used to parse format string and sort specifiers | |
136 | */ | |
137 | int parse_ref_filter_atom(const char *atom, const char *ep) | |
138 | { | |
139 | const char *sp; | |
4de707ea | 140 | const char *arg; |
c95b7585 KN |
141 | int i, at; |
142 | ||
143 | sp = atom; | |
144 | if (*sp == '*' && sp < ep) | |
145 | sp++; /* deref */ | |
146 | if (ep <= sp) | |
147 | die("malformed field name: %.*s", (int)(ep-atom), atom); | |
148 | ||
149 | /* Do we have the atom already used elsewhere? */ | |
150 | for (i = 0; i < used_atom_cnt; i++) { | |
b072add7 KN |
151 | int len = strlen(used_atom[i].name); |
152 | if (len == ep - atom && !memcmp(used_atom[i].name, atom, len)) | |
c95b7585 KN |
153 | return i; |
154 | } | |
155 | ||
156 | /* Is the atom a valid one? */ | |
157 | for (i = 0; i < ARRAY_SIZE(valid_atom); i++) { | |
158 | int len = strlen(valid_atom[i].name); | |
4de707ea | 159 | |
c95b7585 KN |
160 | /* |
161 | * If the atom name has a colon, strip it and everything after | |
162 | * it off - it specifies the format for this entry, and | |
163 | * shouldn't be used for checking against the valid_atom | |
164 | * table. | |
165 | */ | |
4de707ea KN |
166 | arg = memchr(sp, ':', ep - sp); |
167 | if (len == (arg ? arg : ep) - sp && | |
168 | !memcmp(valid_atom[i].name, sp, len)) | |
c95b7585 KN |
169 | break; |
170 | } | |
171 | ||
172 | if (ARRAY_SIZE(valid_atom) <= i) | |
173 | die("unknown field name: %.*s", (int)(ep-atom), atom); | |
174 | ||
175 | /* Add it in, including the deref prefix */ | |
176 | at = used_atom_cnt; | |
177 | used_atom_cnt++; | |
178 | REALLOC_ARRAY(used_atom, used_atom_cnt); | |
b072add7 KN |
179 | used_atom[at].name = xmemdupz(atom, ep - atom); |
180 | used_atom[at].type = valid_atom[i].cmp_type; | |
4de707ea KN |
181 | if (arg) |
182 | arg = used_atom[at].name + (arg - atom) + 1; | |
fd935cc7 | 183 | memset(&used_atom[at].u, 0, sizeof(used_atom[at].u)); |
4de707ea KN |
184 | if (valid_atom[i].parser) |
185 | valid_atom[i].parser(&used_atom[at], arg); | |
c95b7585 KN |
186 | if (*atom == '*') |
187 | need_tagged = 1; | |
b072add7 | 188 | if (!strcmp(used_atom[at].name, "symref")) |
c95b7585 KN |
189 | need_symref = 1; |
190 | return at; | |
191 | } | |
192 | ||
63d89fbc KN |
193 | static void quote_formatting(struct strbuf *s, const char *str, int quote_style) |
194 | { | |
195 | switch (quote_style) { | |
196 | case QUOTE_NONE: | |
197 | strbuf_addstr(s, str); | |
198 | break; | |
199 | case QUOTE_SHELL: | |
200 | sq_quote_buf(s, str); | |
201 | break; | |
202 | case QUOTE_PERL: | |
203 | perl_quote_buf(s, str); | |
204 | break; | |
205 | case QUOTE_PYTHON: | |
206 | python_quote_buf(s, str); | |
207 | break; | |
208 | case QUOTE_TCL: | |
209 | tcl_quote_buf(s, str); | |
210 | break; | |
211 | } | |
212 | } | |
213 | ||
214 | static void append_atom(struct atom_value *v, struct ref_formatting_state *state) | |
215 | { | |
ce592082 KN |
216 | /* |
217 | * Quote formatting is only done when the stack has a single | |
218 | * element. Otherwise quote formatting is done on the | |
219 | * element's entire output strbuf when the %(end) atom is | |
220 | * encountered. | |
221 | */ | |
222 | if (!state->stack->prev) | |
223 | quote_formatting(&state->stack->output, v->s, state->quote_style); | |
224 | else | |
225 | strbuf_addstr(&state->stack->output, v->s); | |
63d89fbc KN |
226 | } |
227 | ||
574e96a2 KN |
228 | static void push_stack_element(struct ref_formatting_stack **stack) |
229 | { | |
230 | struct ref_formatting_stack *s = xcalloc(1, sizeof(struct ref_formatting_stack)); | |
231 | ||
232 | strbuf_init(&s->output, 0); | |
233 | s->prev = *stack; | |
234 | *stack = s; | |
235 | } | |
236 | ||
237 | static void pop_stack_element(struct ref_formatting_stack **stack) | |
238 | { | |
239 | struct ref_formatting_stack *current = *stack; | |
240 | struct ref_formatting_stack *prev = current->prev; | |
241 | ||
242 | if (prev) | |
243 | strbuf_addbuf(&prev->output, ¤t->output); | |
244 | strbuf_release(¤t->output); | |
245 | free(current); | |
246 | *stack = prev; | |
247 | } | |
248 | ||
ce592082 KN |
249 | static void end_align_handler(struct ref_formatting_stack *stack) |
250 | { | |
251 | struct align *align = (struct align *)stack->at_end_data; | |
252 | struct strbuf s = STRBUF_INIT; | |
253 | ||
254 | strbuf_utf8_align(&s, align->position, align->width, stack->output.buf); | |
255 | strbuf_swap(&stack->output, &s); | |
256 | strbuf_release(&s); | |
257 | } | |
258 | ||
259 | static void align_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state) | |
260 | { | |
261 | struct ref_formatting_stack *new; | |
262 | ||
263 | push_stack_element(&state->stack); | |
264 | new = state->stack; | |
265 | new->at_end = end_align_handler; | |
266 | new->at_end_data = &atomv->u.align; | |
267 | } | |
268 | ||
269 | static void end_atom_handler(struct atom_value *atomv, struct ref_formatting_state *state) | |
270 | { | |
271 | struct ref_formatting_stack *current = state->stack; | |
272 | struct strbuf s = STRBUF_INIT; | |
273 | ||
274 | if (!current->at_end) | |
275 | die(_("format: %%(end) atom used without corresponding atom")); | |
276 | current->at_end(current); | |
277 | ||
278 | /* | |
279 | * Perform quote formatting when the stack element is that of | |
280 | * a supporting atom. If nested then perform quote formatting | |
281 | * only on the topmost supporting atom. | |
282 | */ | |
283 | if (!state->stack->prev->prev) { | |
284 | quote_formatting(&s, current->output.buf, state->quote_style); | |
285 | strbuf_swap(¤t->output, &s); | |
286 | } | |
287 | strbuf_release(&s); | |
288 | pop_stack_element(&state->stack); | |
289 | } | |
290 | ||
40a7551d KN |
291 | static int match_atom_name(const char *name, const char *atom_name, const char **val) |
292 | { | |
293 | const char *body; | |
294 | ||
295 | if (!skip_prefix(name, atom_name, &body)) | |
296 | return 0; /* doesn't even begin with "atom_name" */ | |
297 | if (!body[0]) { | |
298 | *val = NULL; /* %(atom_name) and no customization */ | |
299 | return 1; | |
300 | } | |
301 | if (body[0] != ':') | |
302 | return 0; /* "atom_namefoo" is not "atom_name" or "atom_name:..." */ | |
303 | *val = body + 1; /* "atom_name:val" */ | |
304 | return 1; | |
305 | } | |
306 | ||
c95b7585 KN |
307 | /* |
308 | * In a format string, find the next occurrence of %(atom). | |
309 | */ | |
310 | static const char *find_next(const char *cp) | |
311 | { | |
312 | while (*cp) { | |
313 | if (*cp == '%') { | |
314 | /* | |
315 | * %( is the start of an atom; | |
316 | * %% is a quoted per-cent. | |
317 | */ | |
318 | if (cp[1] == '(') | |
319 | return cp; | |
320 | else if (cp[1] == '%') | |
321 | cp++; /* skip over two % */ | |
322 | /* otherwise this is a singleton, literal % */ | |
323 | } | |
324 | cp++; | |
325 | } | |
326 | return NULL; | |
327 | } | |
328 | ||
329 | /* | |
330 | * Make sure the format string is well formed, and parse out | |
331 | * the used atoms. | |
332 | */ | |
333 | int verify_ref_format(const char *format) | |
334 | { | |
335 | const char *cp, *sp; | |
336 | ||
337 | need_color_reset_at_eol = 0; | |
338 | for (cp = format; *cp && (sp = find_next(cp)); ) { | |
339 | const char *color, *ep = strchr(sp, ')'); | |
340 | int at; | |
341 | ||
342 | if (!ep) | |
343 | return error("malformed format string %s", sp); | |
344 | /* sp points at "%(" and ep points at the closing ")" */ | |
345 | at = parse_ref_filter_atom(sp + 2, ep); | |
346 | cp = ep + 1; | |
347 | ||
b072add7 | 348 | if (skip_prefix(used_atom[at].name, "color:", &color)) |
c95b7585 KN |
349 | need_color_reset_at_eol = !!strcmp(color, "reset"); |
350 | } | |
351 | return 0; | |
352 | } | |
353 | ||
354 | /* | |
355 | * Given an object name, read the object data and size, and return a | |
356 | * "struct object". If the object data we are returning is also borrowed | |
357 | * by the "struct object" representation, set *eaten as well---it is a | |
358 | * signal from parse_object_buffer to us not to free the buffer. | |
359 | */ | |
360 | static void *get_obj(const unsigned char *sha1, struct object **obj, unsigned long *sz, int *eaten) | |
361 | { | |
362 | enum object_type type; | |
363 | void *buf = read_sha1_file(sha1, &type, sz); | |
364 | ||
365 | if (buf) | |
366 | *obj = parse_object_buffer(sha1, type, *sz, buf, eaten); | |
367 | else | |
368 | *obj = NULL; | |
369 | return buf; | |
370 | } | |
371 | ||
372 | static int grab_objectname(const char *name, const unsigned char *sha1, | |
373 | struct atom_value *v) | |
374 | { | |
375 | if (!strcmp(name, "objectname")) { | |
a5e03bf5 | 376 | v->s = xstrdup(sha1_to_hex(sha1)); |
c95b7585 KN |
377 | return 1; |
378 | } | |
379 | if (!strcmp(name, "objectname:short")) { | |
380 | v->s = xstrdup(find_unique_abbrev(sha1, DEFAULT_ABBREV)); | |
381 | return 1; | |
382 | } | |
383 | return 0; | |
384 | } | |
385 | ||
386 | /* See grab_values */ | |
387 | static void grab_common_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
388 | { | |
389 | int i; | |
390 | ||
391 | for (i = 0; i < used_atom_cnt; i++) { | |
b072add7 | 392 | const char *name = used_atom[i].name; |
c95b7585 KN |
393 | struct atom_value *v = &val[i]; |
394 | if (!!deref != (*name == '*')) | |
395 | continue; | |
396 | if (deref) | |
397 | name++; | |
398 | if (!strcmp(name, "objecttype")) | |
399 | v->s = typename(obj->type); | |
400 | else if (!strcmp(name, "objectsize")) { | |
c95b7585 | 401 | v->ul = sz; |
a5e03bf5 | 402 | v->s = xstrfmt("%lu", sz); |
c95b7585 KN |
403 | } |
404 | else if (deref) | |
ed1c9977 | 405 | grab_objectname(name, obj->oid.hash, v); |
c95b7585 KN |
406 | } |
407 | } | |
408 | ||
409 | /* See grab_values */ | |
410 | static void grab_tag_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
411 | { | |
412 | int i; | |
413 | struct tag *tag = (struct tag *) obj; | |
414 | ||
415 | for (i = 0; i < used_atom_cnt; i++) { | |
b072add7 | 416 | const char *name = used_atom[i].name; |
c95b7585 KN |
417 | struct atom_value *v = &val[i]; |
418 | if (!!deref != (*name == '*')) | |
419 | continue; | |
420 | if (deref) | |
421 | name++; | |
422 | if (!strcmp(name, "tag")) | |
423 | v->s = tag->tag; | |
424 | else if (!strcmp(name, "type") && tag->tagged) | |
425 | v->s = typename(tag->tagged->type); | |
a5e03bf5 | 426 | else if (!strcmp(name, "object") && tag->tagged) |
f2fd0760 | 427 | v->s = xstrdup(oid_to_hex(&tag->tagged->oid)); |
c95b7585 KN |
428 | } |
429 | } | |
430 | ||
431 | /* See grab_values */ | |
432 | static void grab_commit_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
433 | { | |
434 | int i; | |
435 | struct commit *commit = (struct commit *) obj; | |
436 | ||
437 | for (i = 0; i < used_atom_cnt; i++) { | |
b072add7 | 438 | const char *name = used_atom[i].name; |
c95b7585 KN |
439 | struct atom_value *v = &val[i]; |
440 | if (!!deref != (*name == '*')) | |
441 | continue; | |
442 | if (deref) | |
443 | name++; | |
444 | if (!strcmp(name, "tree")) { | |
f2fd0760 | 445 | v->s = xstrdup(oid_to_hex(&commit->tree->object.oid)); |
c95b7585 | 446 | } |
a5e03bf5 | 447 | else if (!strcmp(name, "numparent")) { |
c95b7585 | 448 | v->ul = commit_list_count(commit->parents); |
a5e03bf5 | 449 | v->s = xstrfmt("%lu", v->ul); |
c95b7585 KN |
450 | } |
451 | else if (!strcmp(name, "parent")) { | |
c95b7585 | 452 | struct commit_list *parents; |
a5e03bf5 JK |
453 | struct strbuf s = STRBUF_INIT; |
454 | for (parents = commit->parents; parents; parents = parents->next) { | |
c95b7585 | 455 | struct commit *parent = parents->item; |
a5e03bf5 JK |
456 | if (parents != commit->parents) |
457 | strbuf_addch(&s, ' '); | |
f2fd0760 | 458 | strbuf_addstr(&s, oid_to_hex(&parent->object.oid)); |
c95b7585 | 459 | } |
a5e03bf5 | 460 | v->s = strbuf_detach(&s, NULL); |
c95b7585 KN |
461 | } |
462 | } | |
463 | } | |
464 | ||
465 | static const char *find_wholine(const char *who, int wholen, const char *buf, unsigned long sz) | |
466 | { | |
467 | const char *eol; | |
468 | while (*buf) { | |
469 | if (!strncmp(buf, who, wholen) && | |
470 | buf[wholen] == ' ') | |
471 | return buf + wholen + 1; | |
472 | eol = strchr(buf, '\n'); | |
473 | if (!eol) | |
474 | return ""; | |
475 | eol++; | |
476 | if (*eol == '\n') | |
477 | return ""; /* end of header */ | |
478 | buf = eol; | |
479 | } | |
480 | return ""; | |
481 | } | |
482 | ||
483 | static const char *copy_line(const char *buf) | |
484 | { | |
485 | const char *eol = strchrnul(buf, '\n'); | |
486 | return xmemdupz(buf, eol - buf); | |
487 | } | |
488 | ||
489 | static const char *copy_name(const char *buf) | |
490 | { | |
491 | const char *cp; | |
492 | for (cp = buf; *cp && *cp != '\n'; cp++) { | |
493 | if (!strncmp(cp, " <", 2)) | |
494 | return xmemdupz(buf, cp - buf); | |
495 | } | |
496 | return ""; | |
497 | } | |
498 | ||
499 | static const char *copy_email(const char *buf) | |
500 | { | |
501 | const char *email = strchr(buf, '<'); | |
502 | const char *eoemail; | |
503 | if (!email) | |
504 | return ""; | |
505 | eoemail = strchr(email, '>'); | |
506 | if (!eoemail) | |
507 | return ""; | |
508 | return xmemdupz(email, eoemail + 1 - email); | |
509 | } | |
510 | ||
511 | static char *copy_subject(const char *buf, unsigned long len) | |
512 | { | |
513 | char *r = xmemdupz(buf, len); | |
514 | int i; | |
515 | ||
516 | for (i = 0; i < len; i++) | |
517 | if (r[i] == '\n') | |
518 | r[i] = ' '; | |
519 | ||
520 | return r; | |
521 | } | |
522 | ||
523 | static void grab_date(const char *buf, struct atom_value *v, const char *atomname) | |
524 | { | |
525 | const char *eoemail = strstr(buf, "> "); | |
526 | char *zone; | |
527 | unsigned long timestamp; | |
528 | long tz; | |
d939af12 | 529 | struct date_mode date_mode = { DATE_NORMAL }; |
c95b7585 KN |
530 | const char *formatp; |
531 | ||
532 | /* | |
533 | * We got here because atomname ends in "date" or "date<something>"; | |
534 | * it's not possible that <something> is not ":<format>" because | |
535 | * parse_ref_filter_atom() wouldn't have allowed it, so we can assume that no | |
536 | * ":" means no format is specified, and use the default. | |
537 | */ | |
538 | formatp = strchr(atomname, ':'); | |
539 | if (formatp != NULL) { | |
540 | formatp++; | |
d939af12 | 541 | parse_date_format(formatp, &date_mode); |
c95b7585 KN |
542 | } |
543 | ||
544 | if (!eoemail) | |
545 | goto bad; | |
546 | timestamp = strtoul(eoemail + 2, &zone, 10); | |
547 | if (timestamp == ULONG_MAX) | |
548 | goto bad; | |
549 | tz = strtol(zone, NULL, 10); | |
550 | if ((tz == LONG_MIN || tz == LONG_MAX) && errno == ERANGE) | |
551 | goto bad; | |
d939af12 | 552 | v->s = xstrdup(show_date(timestamp, tz, &date_mode)); |
c95b7585 KN |
553 | v->ul = timestamp; |
554 | return; | |
555 | bad: | |
556 | v->s = ""; | |
557 | v->ul = 0; | |
558 | } | |
559 | ||
560 | /* See grab_values */ | |
561 | static void grab_person(const char *who, struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
562 | { | |
563 | int i; | |
564 | int wholen = strlen(who); | |
565 | const char *wholine = NULL; | |
566 | ||
567 | for (i = 0; i < used_atom_cnt; i++) { | |
b072add7 | 568 | const char *name = used_atom[i].name; |
c95b7585 KN |
569 | struct atom_value *v = &val[i]; |
570 | if (!!deref != (*name == '*')) | |
571 | continue; | |
572 | if (deref) | |
573 | name++; | |
574 | if (strncmp(who, name, wholen)) | |
575 | continue; | |
576 | if (name[wholen] != 0 && | |
577 | strcmp(name + wholen, "name") && | |
578 | strcmp(name + wholen, "email") && | |
579 | !starts_with(name + wholen, "date")) | |
580 | continue; | |
581 | if (!wholine) | |
582 | wholine = find_wholine(who, wholen, buf, sz); | |
583 | if (!wholine) | |
584 | return; /* no point looking for it */ | |
585 | if (name[wholen] == 0) | |
586 | v->s = copy_line(wholine); | |
587 | else if (!strcmp(name + wholen, "name")) | |
588 | v->s = copy_name(wholine); | |
589 | else if (!strcmp(name + wholen, "email")) | |
590 | v->s = copy_email(wholine); | |
591 | else if (starts_with(name + wholen, "date")) | |
592 | grab_date(wholine, v, name); | |
593 | } | |
594 | ||
595 | /* | |
596 | * For a tag or a commit object, if "creator" or "creatordate" is | |
597 | * requested, do something special. | |
598 | */ | |
599 | if (strcmp(who, "tagger") && strcmp(who, "committer")) | |
600 | return; /* "author" for commit object is not wanted */ | |
601 | if (!wholine) | |
602 | wholine = find_wholine(who, wholen, buf, sz); | |
603 | if (!wholine) | |
604 | return; | |
605 | for (i = 0; i < used_atom_cnt; i++) { | |
b072add7 | 606 | const char *name = used_atom[i].name; |
c95b7585 KN |
607 | struct atom_value *v = &val[i]; |
608 | if (!!deref != (*name == '*')) | |
609 | continue; | |
610 | if (deref) | |
611 | name++; | |
612 | ||
613 | if (starts_with(name, "creatordate")) | |
614 | grab_date(wholine, v, name); | |
615 | else if (!strcmp(name, "creator")) | |
616 | v->s = copy_line(wholine); | |
617 | } | |
618 | } | |
619 | ||
620 | static void find_subpos(const char *buf, unsigned long sz, | |
621 | const char **sub, unsigned long *sublen, | |
622 | const char **body, unsigned long *bodylen, | |
623 | unsigned long *nonsiglen, | |
624 | const char **sig, unsigned long *siglen) | |
625 | { | |
626 | const char *eol; | |
627 | /* skip past header until we hit empty line */ | |
628 | while (*buf && *buf != '\n') { | |
629 | eol = strchrnul(buf, '\n'); | |
630 | if (*eol) | |
631 | eol++; | |
632 | buf = eol; | |
633 | } | |
634 | /* skip any empty lines */ | |
635 | while (*buf == '\n') | |
636 | buf++; | |
637 | ||
638 | /* parse signature first; we might not even have a subject line */ | |
639 | *sig = buf + parse_signature(buf, strlen(buf)); | |
640 | *siglen = strlen(*sig); | |
641 | ||
642 | /* subject is first non-empty line */ | |
643 | *sub = buf; | |
644 | /* subject goes to first empty line */ | |
645 | while (buf < *sig && *buf && *buf != '\n') { | |
646 | eol = strchrnul(buf, '\n'); | |
647 | if (*eol) | |
648 | eol++; | |
649 | buf = eol; | |
650 | } | |
651 | *sublen = buf - *sub; | |
652 | /* drop trailing newline, if present */ | |
653 | if (*sublen && (*sub)[*sublen - 1] == '\n') | |
654 | *sublen -= 1; | |
655 | ||
656 | /* skip any empty lines */ | |
657 | while (*buf == '\n') | |
658 | buf++; | |
659 | *body = buf; | |
660 | *bodylen = strlen(buf); | |
661 | *nonsiglen = *sig - buf; | |
662 | } | |
663 | ||
1bb38e5a KN |
664 | /* |
665 | * If 'lines' is greater than 0, append that many lines from the given | |
666 | * 'buf' of length 'size' to the given strbuf. | |
667 | */ | |
668 | static void append_lines(struct strbuf *out, const char *buf, unsigned long size, int lines) | |
669 | { | |
670 | int i; | |
671 | const char *sp, *eol; | |
672 | size_t len; | |
673 | ||
674 | sp = buf; | |
675 | ||
676 | for (i = 0; i < lines && sp < buf + size; i++) { | |
677 | if (i) | |
678 | strbuf_addstr(out, "\n "); | |
679 | eol = memchr(sp, '\n', size - (sp - buf)); | |
680 | len = eol ? eol - sp : size - (sp - buf); | |
681 | strbuf_add(out, sp, len); | |
682 | if (!eol) | |
683 | break; | |
684 | sp = eol + 1; | |
685 | } | |
686 | } | |
687 | ||
c95b7585 KN |
688 | /* See grab_values */ |
689 | static void grab_sub_body_contents(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
690 | { | |
691 | int i; | |
692 | const char *subpos = NULL, *bodypos = NULL, *sigpos = NULL; | |
693 | unsigned long sublen = 0, bodylen = 0, nonsiglen = 0, siglen = 0; | |
694 | ||
695 | for (i = 0; i < used_atom_cnt; i++) { | |
b072add7 | 696 | const char *name = used_atom[i].name; |
c95b7585 | 697 | struct atom_value *v = &val[i]; |
1bb38e5a | 698 | const char *valp = NULL; |
c95b7585 KN |
699 | if (!!deref != (*name == '*')) |
700 | continue; | |
701 | if (deref) | |
702 | name++; | |
703 | if (strcmp(name, "subject") && | |
704 | strcmp(name, "body") && | |
705 | strcmp(name, "contents") && | |
706 | strcmp(name, "contents:subject") && | |
707 | strcmp(name, "contents:body") && | |
1bb38e5a KN |
708 | strcmp(name, "contents:signature") && |
709 | !starts_with(name, "contents:lines=")) | |
c95b7585 KN |
710 | continue; |
711 | if (!subpos) | |
712 | find_subpos(buf, sz, | |
713 | &subpos, &sublen, | |
714 | &bodypos, &bodylen, &nonsiglen, | |
715 | &sigpos, &siglen); | |
716 | ||
717 | if (!strcmp(name, "subject")) | |
718 | v->s = copy_subject(subpos, sublen); | |
719 | else if (!strcmp(name, "contents:subject")) | |
720 | v->s = copy_subject(subpos, sublen); | |
721 | else if (!strcmp(name, "body")) | |
722 | v->s = xmemdupz(bodypos, bodylen); | |
723 | else if (!strcmp(name, "contents:body")) | |
724 | v->s = xmemdupz(bodypos, nonsiglen); | |
725 | else if (!strcmp(name, "contents:signature")) | |
726 | v->s = xmemdupz(sigpos, siglen); | |
727 | else if (!strcmp(name, "contents")) | |
728 | v->s = xstrdup(subpos); | |
1bb38e5a KN |
729 | else if (skip_prefix(name, "contents:lines=", &valp)) { |
730 | struct strbuf s = STRBUF_INIT; | |
731 | const char *contents_end = bodylen + bodypos - siglen; | |
732 | ||
733 | if (strtoul_ui(valp, 10, &v->u.contents.lines)) | |
734 | die(_("positive value expected contents:lines=%s"), valp); | |
735 | /* Size is the length of the message after removing the signature */ | |
736 | append_lines(&s, subpos, contents_end - subpos, v->u.contents.lines); | |
737 | v->s = strbuf_detach(&s, NULL); | |
738 | } | |
c95b7585 KN |
739 | } |
740 | } | |
741 | ||
742 | /* | |
743 | * We want to have empty print-string for field requests | |
744 | * that do not apply (e.g. "authordate" for a tag object) | |
745 | */ | |
746 | static void fill_missing_values(struct atom_value *val) | |
747 | { | |
748 | int i; | |
749 | for (i = 0; i < used_atom_cnt; i++) { | |
750 | struct atom_value *v = &val[i]; | |
751 | if (v->s == NULL) | |
752 | v->s = ""; | |
753 | } | |
754 | } | |
755 | ||
756 | /* | |
757 | * val is a list of atom_value to hold returned values. Extract | |
758 | * the values for atoms in used_atom array out of (obj, buf, sz). | |
759 | * when deref is false, (obj, buf, sz) is the object that is | |
760 | * pointed at by the ref itself; otherwise it is the object the | |
761 | * ref (which is a tag) refers to. | |
762 | */ | |
763 | static void grab_values(struct atom_value *val, int deref, struct object *obj, void *buf, unsigned long sz) | |
764 | { | |
765 | grab_common_values(val, deref, obj, buf, sz); | |
766 | switch (obj->type) { | |
767 | case OBJ_TAG: | |
768 | grab_tag_values(val, deref, obj, buf, sz); | |
769 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
770 | grab_person("tagger", val, deref, obj, buf, sz); | |
771 | break; | |
772 | case OBJ_COMMIT: | |
773 | grab_commit_values(val, deref, obj, buf, sz); | |
774 | grab_sub_body_contents(val, deref, obj, buf, sz); | |
775 | grab_person("author", val, deref, obj, buf, sz); | |
776 | grab_person("committer", val, deref, obj, buf, sz); | |
777 | break; | |
778 | case OBJ_TREE: | |
779 | /* grab_tree_values(val, deref, obj, buf, sz); */ | |
780 | break; | |
781 | case OBJ_BLOB: | |
782 | /* grab_blob_values(val, deref, obj, buf, sz); */ | |
783 | break; | |
784 | default: | |
785 | die("Eh? Object of type %d?", obj->type); | |
786 | } | |
787 | } | |
788 | ||
789 | static inline char *copy_advance(char *dst, const char *src) | |
790 | { | |
791 | while (*src) | |
792 | *dst++ = *src++; | |
793 | return dst; | |
794 | } | |
795 | ||
0571979b JK |
796 | static const char *strip_ref_components(const char *refname, const char *nr_arg) |
797 | { | |
798 | char *end; | |
799 | long nr = strtol(nr_arg, &end, 10); | |
800 | long remaining = nr; | |
801 | const char *start = refname; | |
802 | ||
803 | if (nr < 1 || *end != '\0') | |
804 | die(":strip= requires a positive integer argument"); | |
805 | ||
806 | while (remaining) { | |
807 | switch (*start++) { | |
808 | case '\0': | |
809 | die("ref '%s' does not have %ld components to :strip", | |
810 | refname, nr); | |
811 | case '/': | |
812 | remaining--; | |
813 | break; | |
814 | } | |
815 | } | |
816 | return start; | |
817 | } | |
818 | ||
c95b7585 KN |
819 | /* |
820 | * Parse the object referred by ref, and grab needed value. | |
821 | */ | |
822 | static void populate_value(struct ref_array_item *ref) | |
823 | { | |
824 | void *buf; | |
825 | struct object *obj; | |
826 | int eaten, i; | |
827 | unsigned long size; | |
828 | const unsigned char *tagged; | |
829 | ||
830 | ref->value = xcalloc(used_atom_cnt, sizeof(struct atom_value)); | |
831 | ||
832 | if (need_symref && (ref->flag & REF_ISSYMREF) && !ref->symref) { | |
833 | unsigned char unused1[20]; | |
834 | ref->symref = resolve_refdup(ref->refname, RESOLVE_REF_READING, | |
835 | unused1, NULL); | |
836 | if (!ref->symref) | |
837 | ref->symref = ""; | |
838 | } | |
839 | ||
840 | /* Fill in specials first */ | |
841 | for (i = 0; i < used_atom_cnt; i++) { | |
fd935cc7 | 842 | struct used_atom *atom = &used_atom[i]; |
b072add7 | 843 | const char *name = used_atom[i].name; |
c95b7585 KN |
844 | struct atom_value *v = &ref->value[i]; |
845 | int deref = 0; | |
846 | const char *refname; | |
847 | const char *formatp; | |
40a7551d | 848 | const char *valp; |
c95b7585 KN |
849 | struct branch *branch = NULL; |
850 | ||
63d89fbc KN |
851 | v->handler = append_atom; |
852 | ||
c95b7585 KN |
853 | if (*name == '*') { |
854 | deref = 1; | |
855 | name++; | |
856 | } | |
857 | ||
858 | if (starts_with(name, "refname")) | |
859 | refname = ref->refname; | |
860 | else if (starts_with(name, "symref")) | |
861 | refname = ref->symref ? ref->symref : ""; | |
862 | else if (starts_with(name, "upstream")) { | |
863 | const char *branch_name; | |
864 | /* only local branches may have an upstream */ | |
865 | if (!skip_prefix(ref->refname, "refs/heads/", | |
866 | &branch_name)) | |
867 | continue; | |
868 | branch = branch_get(branch_name); | |
869 | ||
870 | refname = branch_get_upstream(branch, NULL); | |
871 | if (!refname) | |
872 | continue; | |
873 | } else if (starts_with(name, "push")) { | |
874 | const char *branch_name; | |
875 | if (!skip_prefix(ref->refname, "refs/heads/", | |
876 | &branch_name)) | |
877 | continue; | |
878 | branch = branch_get(branch_name); | |
879 | ||
880 | refname = branch_get_push(branch, NULL); | |
881 | if (!refname) | |
882 | continue; | |
fd935cc7 KN |
883 | } else if (starts_with(name, "color:")) { |
884 | v->s = atom->u.color; | |
c95b7585 KN |
885 | continue; |
886 | } else if (!strcmp(name, "flag")) { | |
887 | char buf[256], *cp = buf; | |
888 | if (ref->flag & REF_ISSYMREF) | |
889 | cp = copy_advance(cp, ",symref"); | |
890 | if (ref->flag & REF_ISPACKED) | |
891 | cp = copy_advance(cp, ",packed"); | |
892 | if (cp == buf) | |
893 | v->s = ""; | |
894 | else { | |
895 | *cp = '\0'; | |
896 | v->s = xstrdup(buf + 1); | |
897 | } | |
898 | continue; | |
899 | } else if (!deref && grab_objectname(name, ref->objectname, v)) { | |
900 | continue; | |
901 | } else if (!strcmp(name, "HEAD")) { | |
902 | const char *head; | |
903 | unsigned char sha1[20]; | |
904 | ||
905 | head = resolve_ref_unsafe("HEAD", RESOLVE_REF_READING, | |
906 | sha1, NULL); | |
907 | if (!strcmp(ref->refname, head)) | |
908 | v->s = "*"; | |
909 | else | |
910 | v->s = " "; | |
911 | continue; | |
ce592082 KN |
912 | } else if (match_atom_name(name, "align", &valp)) { |
913 | struct align *align = &v->u.align; | |
13267647 JK |
914 | struct string_list params = STRING_LIST_INIT_DUP; |
915 | int i; | |
ce592082 KN |
916 | int width = -1; |
917 | ||
918 | if (!valp) | |
919 | die(_("expected format: %%(align:<width>,<position>)")); | |
920 | ||
ce592082 KN |
921 | align->position = ALIGN_LEFT; |
922 | ||
13267647 JK |
923 | string_list_split(¶ms, valp, ',', -1); |
924 | for (i = 0; i < params.nr; i++) { | |
925 | const char *s = params.items[i].string; | |
25a8d79e KN |
926 | int position; |
927 | ||
13267647 | 928 | if (!strtoul_ui(s, 10, (unsigned int *)&width)) |
ce592082 | 929 | ; |
25a8d79e KN |
930 | else if ((position = parse_align_position(s)) >= 0) |
931 | align->position = position; | |
ce592082 | 932 | else |
13267647 | 933 | die(_("improper format entered align:%s"), s); |
ce592082 KN |
934 | } |
935 | ||
936 | if (width < 0) | |
937 | die(_("positive width expected with the %%(align) atom")); | |
938 | align->width = width; | |
13267647 | 939 | string_list_clear(¶ms, 0); |
ce592082 KN |
940 | v->handler = align_atom_handler; |
941 | continue; | |
942 | } else if (!strcmp(name, "end")) { | |
943 | v->handler = end_atom_handler; | |
944 | continue; | |
c95b7585 KN |
945 | } else |
946 | continue; | |
947 | ||
948 | formatp = strchr(name, ':'); | |
949 | if (formatp) { | |
950 | int num_ours, num_theirs; | |
0571979b | 951 | const char *arg; |
c95b7585 KN |
952 | |
953 | formatp++; | |
954 | if (!strcmp(formatp, "short")) | |
955 | refname = shorten_unambiguous_ref(refname, | |
956 | warn_ambiguous_refs); | |
0571979b JK |
957 | else if (skip_prefix(formatp, "strip=", &arg)) |
958 | refname = strip_ref_components(refname, arg); | |
c95b7585 KN |
959 | else if (!strcmp(formatp, "track") && |
960 | (starts_with(name, "upstream") || | |
961 | starts_with(name, "push"))) { | |
c95b7585 KN |
962 | |
963 | if (stat_tracking_info(branch, &num_ours, | |
964 | &num_theirs, NULL)) | |
965 | continue; | |
966 | ||
967 | if (!num_ours && !num_theirs) | |
968 | v->s = ""; | |
a5e03bf5 JK |
969 | else if (!num_ours) |
970 | v->s = xstrfmt("[behind %d]", num_theirs); | |
971 | else if (!num_theirs) | |
972 | v->s = xstrfmt("[ahead %d]", num_ours); | |
973 | else | |
974 | v->s = xstrfmt("[ahead %d, behind %d]", | |
975 | num_ours, num_theirs); | |
c95b7585 KN |
976 | continue; |
977 | } else if (!strcmp(formatp, "trackshort") && | |
978 | (starts_with(name, "upstream") || | |
979 | starts_with(name, "push"))) { | |
980 | assert(branch); | |
981 | ||
982 | if (stat_tracking_info(branch, &num_ours, | |
983 | &num_theirs, NULL)) | |
984 | continue; | |
985 | ||
986 | if (!num_ours && !num_theirs) | |
987 | v->s = "="; | |
988 | else if (!num_ours) | |
989 | v->s = "<"; | |
990 | else if (!num_theirs) | |
991 | v->s = ">"; | |
992 | else | |
993 | v->s = "<>"; | |
994 | continue; | |
995 | } else | |
996 | die("unknown %.*s format %s", | |
997 | (int)(formatp - name), name, formatp); | |
998 | } | |
999 | ||
1000 | if (!deref) | |
1001 | v->s = refname; | |
a5e03bf5 JK |
1002 | else |
1003 | v->s = xstrfmt("%s^{}", refname); | |
c95b7585 KN |
1004 | } |
1005 | ||
1006 | for (i = 0; i < used_atom_cnt; i++) { | |
1007 | struct atom_value *v = &ref->value[i]; | |
1008 | if (v->s == NULL) | |
1009 | goto need_obj; | |
1010 | } | |
1011 | return; | |
1012 | ||
1013 | need_obj: | |
1014 | buf = get_obj(ref->objectname, &obj, &size, &eaten); | |
1015 | if (!buf) | |
1016 | die("missing object %s for %s", | |
1017 | sha1_to_hex(ref->objectname), ref->refname); | |
1018 | if (!obj) | |
1019 | die("parse_object_buffer failed on %s for %s", | |
1020 | sha1_to_hex(ref->objectname), ref->refname); | |
1021 | ||
1022 | grab_values(ref->value, 0, obj, buf, size); | |
1023 | if (!eaten) | |
1024 | free(buf); | |
1025 | ||
1026 | /* | |
1027 | * If there is no atom that wants to know about tagged | |
1028 | * object, we are done. | |
1029 | */ | |
1030 | if (!need_tagged || (obj->type != OBJ_TAG)) | |
1031 | return; | |
1032 | ||
1033 | /* | |
1034 | * If it is a tag object, see if we use a value that derefs | |
1035 | * the object, and if we do grab the object it refers to. | |
1036 | */ | |
ed1c9977 | 1037 | tagged = ((struct tag *)obj)->tagged->oid.hash; |
c95b7585 KN |
1038 | |
1039 | /* | |
1040 | * NEEDSWORK: This derefs tag only once, which | |
1041 | * is good to deal with chains of trust, but | |
1042 | * is not consistent with what deref_tag() does | |
1043 | * which peels the onion to the core. | |
1044 | */ | |
1045 | buf = get_obj(tagged, &obj, &size, &eaten); | |
1046 | if (!buf) | |
1047 | die("missing object %s for %s", | |
1048 | sha1_to_hex(tagged), ref->refname); | |
1049 | if (!obj) | |
1050 | die("parse_object_buffer failed on %s for %s", | |
1051 | sha1_to_hex(tagged), ref->refname); | |
1052 | grab_values(ref->value, 1, obj, buf, size); | |
1053 | if (!eaten) | |
1054 | free(buf); | |
1055 | } | |
1056 | ||
1057 | /* | |
1058 | * Given a ref, return the value for the atom. This lazily gets value | |
1059 | * out of the object by calling populate value. | |
1060 | */ | |
1061 | static void get_ref_atom_value(struct ref_array_item *ref, int atom, struct atom_value **v) | |
1062 | { | |
1063 | if (!ref->value) { | |
1064 | populate_value(ref); | |
1065 | fill_missing_values(ref->value); | |
1066 | } | |
1067 | *v = &ref->value[atom]; | |
1068 | } | |
1069 | ||
ee2bd06b KN |
1070 | enum contains_result { |
1071 | CONTAINS_UNKNOWN = -1, | |
1072 | CONTAINS_NO = 0, | |
1073 | CONTAINS_YES = 1 | |
1074 | }; | |
1075 | ||
1076 | /* | |
1077 | * Mimicking the real stack, this stack lives on the heap, avoiding stack | |
1078 | * overflows. | |
1079 | * | |
1080 | * At each recursion step, the stack items points to the commits whose | |
1081 | * ancestors are to be inspected. | |
1082 | */ | |
1083 | struct contains_stack { | |
1084 | int nr, alloc; | |
1085 | struct contains_stack_entry { | |
1086 | struct commit *commit; | |
1087 | struct commit_list *parents; | |
1088 | } *contains_stack; | |
1089 | }; | |
1090 | ||
1091 | static int in_commit_list(const struct commit_list *want, struct commit *c) | |
1092 | { | |
1093 | for (; want; want = want->next) | |
f2fd0760 | 1094 | if (!oidcmp(&want->item->object.oid, &c->object.oid)) |
ee2bd06b KN |
1095 | return 1; |
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | /* | |
1100 | * Test whether the candidate or one of its parents is contained in the list. | |
1101 | * Do not recurse to find out, though, but return -1 if inconclusive. | |
1102 | */ | |
1103 | static enum contains_result contains_test(struct commit *candidate, | |
1104 | const struct commit_list *want) | |
1105 | { | |
1106 | /* was it previously marked as containing a want commit? */ | |
1107 | if (candidate->object.flags & TMP_MARK) | |
1108 | return 1; | |
1109 | /* or marked as not possibly containing a want commit? */ | |
1110 | if (candidate->object.flags & UNINTERESTING) | |
1111 | return 0; | |
1112 | /* or are we it? */ | |
1113 | if (in_commit_list(want, candidate)) { | |
1114 | candidate->object.flags |= TMP_MARK; | |
1115 | return 1; | |
1116 | } | |
1117 | ||
1118 | if (parse_commit(candidate) < 0) | |
1119 | return 0; | |
1120 | ||
1121 | return -1; | |
1122 | } | |
1123 | ||
1124 | static void push_to_contains_stack(struct commit *candidate, struct contains_stack *contains_stack) | |
1125 | { | |
1126 | ALLOC_GROW(contains_stack->contains_stack, contains_stack->nr + 1, contains_stack->alloc); | |
1127 | contains_stack->contains_stack[contains_stack->nr].commit = candidate; | |
1128 | contains_stack->contains_stack[contains_stack->nr++].parents = candidate->parents; | |
1129 | } | |
1130 | ||
1131 | static enum contains_result contains_tag_algo(struct commit *candidate, | |
1132 | const struct commit_list *want) | |
1133 | { | |
1134 | struct contains_stack contains_stack = { 0, 0, NULL }; | |
1135 | int result = contains_test(candidate, want); | |
1136 | ||
1137 | if (result != CONTAINS_UNKNOWN) | |
1138 | return result; | |
1139 | ||
1140 | push_to_contains_stack(candidate, &contains_stack); | |
1141 | while (contains_stack.nr) { | |
1142 | struct contains_stack_entry *entry = &contains_stack.contains_stack[contains_stack.nr - 1]; | |
1143 | struct commit *commit = entry->commit; | |
1144 | struct commit_list *parents = entry->parents; | |
1145 | ||
1146 | if (!parents) { | |
1147 | commit->object.flags |= UNINTERESTING; | |
1148 | contains_stack.nr--; | |
1149 | } | |
1150 | /* | |
1151 | * If we just popped the stack, parents->item has been marked, | |
1152 | * therefore contains_test will return a meaningful 0 or 1. | |
1153 | */ | |
1154 | else switch (contains_test(parents->item, want)) { | |
1155 | case CONTAINS_YES: | |
1156 | commit->object.flags |= TMP_MARK; | |
1157 | contains_stack.nr--; | |
1158 | break; | |
1159 | case CONTAINS_NO: | |
1160 | entry->parents = parents->next; | |
1161 | break; | |
1162 | case CONTAINS_UNKNOWN: | |
1163 | push_to_contains_stack(parents->item, &contains_stack); | |
1164 | break; | |
1165 | } | |
1166 | } | |
1167 | free(contains_stack.contains_stack); | |
1168 | return contains_test(candidate, want); | |
1169 | } | |
1170 | ||
1171 | static int commit_contains(struct ref_filter *filter, struct commit *commit) | |
1172 | { | |
1173 | if (filter->with_commit_tag_algo) | |
1174 | return contains_tag_algo(commit, filter->with_commit); | |
1175 | return is_descendant_of(commit, filter->with_commit); | |
1176 | } | |
1177 | ||
bef0e12b KN |
1178 | /* |
1179 | * Return 1 if the refname matches one of the patterns, otherwise 0. | |
1180 | * A pattern can be a literal prefix (e.g. a refname "refs/heads/master" | |
1181 | * matches a pattern "refs/heads/mas") or a wildcard (e.g. the same ref | |
1182 | * matches "refs/heads/mas*", too). | |
1183 | */ | |
1184 | static int match_pattern(const char **patterns, const char *refname) | |
1185 | { | |
1186 | /* | |
1187 | * When no '--format' option is given we need to skip the prefix | |
1188 | * for matching refs of tags and branches. | |
1189 | */ | |
1190 | (void)(skip_prefix(refname, "refs/tags/", &refname) || | |
1191 | skip_prefix(refname, "refs/heads/", &refname) || | |
1192 | skip_prefix(refname, "refs/remotes/", &refname) || | |
1193 | skip_prefix(refname, "refs/", &refname)); | |
1194 | ||
1195 | for (; *patterns; patterns++) { | |
1196 | if (!wildmatch(*patterns, refname, 0, NULL)) | |
1197 | return 1; | |
1198 | } | |
1199 | return 0; | |
1200 | } | |
1201 | ||
c95b7585 KN |
1202 | /* |
1203 | * Return 1 if the refname matches one of the patterns, otherwise 0. | |
1204 | * A pattern can be path prefix (e.g. a refname "refs/heads/master" | |
bef0e12b KN |
1205 | * matches a pattern "refs/heads/" but not "refs/heads/m") or a |
1206 | * wildcard (e.g. the same ref matches "refs/heads/m*", too). | |
c95b7585 KN |
1207 | */ |
1208 | static int match_name_as_path(const char **pattern, const char *refname) | |
1209 | { | |
1210 | int namelen = strlen(refname); | |
1211 | for (; *pattern; pattern++) { | |
1212 | const char *p = *pattern; | |
1213 | int plen = strlen(p); | |
1214 | ||
1215 | if ((plen <= namelen) && | |
1216 | !strncmp(refname, p, plen) && | |
1217 | (refname[plen] == '\0' || | |
1218 | refname[plen] == '/' || | |
1219 | p[plen-1] == '/')) | |
1220 | return 1; | |
1221 | if (!wildmatch(p, refname, WM_PATHNAME, NULL)) | |
1222 | return 1; | |
1223 | } | |
1224 | return 0; | |
1225 | } | |
1226 | ||
bef0e12b KN |
1227 | /* Return 1 if the refname matches one of the patterns, otherwise 0. */ |
1228 | static int filter_pattern_match(struct ref_filter *filter, const char *refname) | |
1229 | { | |
1230 | if (!*filter->name_patterns) | |
1231 | return 1; /* No pattern always matches */ | |
1232 | if (filter->match_as_path) | |
1233 | return match_name_as_path(filter->name_patterns, refname); | |
1234 | return match_pattern(filter->name_patterns, refname); | |
1235 | } | |
1236 | ||
68411046 KN |
1237 | /* |
1238 | * Given a ref (sha1, refname), check if the ref belongs to the array | |
1239 | * of sha1s. If the given ref is a tag, check if the given tag points | |
1240 | * at one of the sha1s in the given sha1 array. | |
1241 | * the given sha1_array. | |
1242 | * NEEDSWORK: | |
1243 | * 1. Only a single level of inderection is obtained, we might want to | |
1244 | * change this to account for multiple levels (e.g. annotated tags | |
1245 | * pointing to annotated tags pointing to a commit.) | |
1246 | * 2. As the refs are cached we might know what refname peels to without | |
1247 | * the need to parse the object via parse_object(). peel_ref() might be a | |
1248 | * more efficient alternative to obtain the pointee. | |
1249 | */ | |
1250 | static const unsigned char *match_points_at(struct sha1_array *points_at, | |
1251 | const unsigned char *sha1, | |
1252 | const char *refname) | |
1253 | { | |
1254 | const unsigned char *tagged_sha1 = NULL; | |
1255 | struct object *obj; | |
1256 | ||
1257 | if (sha1_array_lookup(points_at, sha1) >= 0) | |
1258 | return sha1; | |
1259 | obj = parse_object(sha1); | |
1260 | if (!obj) | |
1261 | die(_("malformed object at '%s'"), refname); | |
1262 | if (obj->type == OBJ_TAG) | |
ed1c9977 | 1263 | tagged_sha1 = ((struct tag *)obj)->tagged->oid.hash; |
68411046 KN |
1264 | if (tagged_sha1 && sha1_array_lookup(points_at, tagged_sha1) >= 0) |
1265 | return tagged_sha1; | |
1266 | return NULL; | |
1267 | } | |
1268 | ||
c95b7585 KN |
1269 | /* Allocate space for a new ref_array_item and copy the objectname and flag to it */ |
1270 | static struct ref_array_item *new_ref_array_item(const char *refname, | |
1271 | const unsigned char *objectname, | |
1272 | int flag) | |
1273 | { | |
1958a6eb KN |
1274 | size_t len = strlen(refname); |
1275 | struct ref_array_item *ref = xcalloc(1, sizeof(struct ref_array_item) + len + 1); | |
1276 | memcpy(ref->refname, refname, len); | |
1277 | ref->refname[len] = '\0'; | |
c95b7585 KN |
1278 | hashcpy(ref->objectname, objectname); |
1279 | ref->flag = flag; | |
1280 | ||
1281 | return ref; | |
1282 | } | |
1283 | ||
5b4f2851 KN |
1284 | static int filter_ref_kind(struct ref_filter *filter, const char *refname) |
1285 | { | |
1286 | unsigned int i; | |
1287 | ||
1288 | static struct { | |
1289 | const char *prefix; | |
1290 | unsigned int kind; | |
1291 | } ref_kind[] = { | |
1292 | { "refs/heads/" , FILTER_REFS_BRANCHES }, | |
1293 | { "refs/remotes/" , FILTER_REFS_REMOTES }, | |
1294 | { "refs/tags/", FILTER_REFS_TAGS} | |
1295 | }; | |
1296 | ||
1297 | if (filter->kind == FILTER_REFS_BRANCHES || | |
1298 | filter->kind == FILTER_REFS_REMOTES || | |
1299 | filter->kind == FILTER_REFS_TAGS) | |
1300 | return filter->kind; | |
1301 | else if (!strcmp(refname, "HEAD")) | |
1302 | return FILTER_REFS_DETACHED_HEAD; | |
1303 | ||
1304 | for (i = 0; i < ARRAY_SIZE(ref_kind); i++) { | |
1305 | if (starts_with(refname, ref_kind[i].prefix)) | |
1306 | return ref_kind[i].kind; | |
1307 | } | |
1308 | ||
1309 | return FILTER_REFS_OTHERS; | |
1310 | } | |
1311 | ||
c95b7585 KN |
1312 | /* |
1313 | * A call-back given to for_each_ref(). Filter refs and keep them for | |
1314 | * later object processing. | |
1315 | */ | |
14de7fba | 1316 | static int ref_filter_handler(const char *refname, const struct object_id *oid, int flag, void *cb_data) |
c95b7585 KN |
1317 | { |
1318 | struct ref_filter_cbdata *ref_cbdata = cb_data; | |
14de7fba | 1319 | struct ref_filter *filter = ref_cbdata->filter; |
c95b7585 | 1320 | struct ref_array_item *ref; |
35257aa0 | 1321 | struct commit *commit = NULL; |
5b4f2851 | 1322 | unsigned int kind; |
c95b7585 KN |
1323 | |
1324 | if (flag & REF_BAD_NAME) { | |
1325 | warning("ignoring ref with broken name %s", refname); | |
1326 | return 0; | |
1327 | } | |
1328 | ||
7ebc8cbe JH |
1329 | if (flag & REF_ISBROKEN) { |
1330 | warning("ignoring broken ref %s", refname); | |
1331 | return 0; | |
1332 | } | |
1333 | ||
5b4f2851 KN |
1334 | /* Obtain the current ref kind from filter_ref_kind() and ignore unwanted refs. */ |
1335 | kind = filter_ref_kind(filter, refname); | |
1336 | if (!(kind & filter->kind)) | |
1337 | return 0; | |
1338 | ||
bef0e12b | 1339 | if (!filter_pattern_match(filter, refname)) |
c95b7585 KN |
1340 | return 0; |
1341 | ||
68411046 KN |
1342 | if (filter->points_at.nr && !match_points_at(&filter->points_at, oid->hash, refname)) |
1343 | return 0; | |
1344 | ||
35257aa0 KN |
1345 | /* |
1346 | * A merge filter is applied on refs pointing to commits. Hence | |
1347 | * obtain the commit using the 'oid' available and discard all | |
1348 | * non-commits early. The actual filtering is done later. | |
1349 | */ | |
aedcb7dc | 1350 | if (filter->merge_commit || filter->with_commit || filter->verbose) { |
35257aa0 KN |
1351 | commit = lookup_commit_reference_gently(oid->hash, 1); |
1352 | if (!commit) | |
1353 | return 0; | |
ee2bd06b KN |
1354 | /* We perform the filtering for the '--contains' option */ |
1355 | if (filter->with_commit && | |
1356 | !commit_contains(filter, commit)) | |
1357 | return 0; | |
35257aa0 KN |
1358 | } |
1359 | ||
c95b7585 KN |
1360 | /* |
1361 | * We do not open the object yet; sort may only need refname | |
1362 | * to do its job and the resulting list may yet to be pruned | |
1363 | * by maxcount logic. | |
1364 | */ | |
1365 | ref = new_ref_array_item(refname, oid->hash, flag); | |
35257aa0 | 1366 | ref->commit = commit; |
c95b7585 | 1367 | |
14de7fba KN |
1368 | REALLOC_ARRAY(ref_cbdata->array->items, ref_cbdata->array->nr + 1); |
1369 | ref_cbdata->array->items[ref_cbdata->array->nr++] = ref; | |
5b4f2851 | 1370 | ref->kind = kind; |
c95b7585 KN |
1371 | return 0; |
1372 | } | |
1373 | ||
1374 | /* Free memory allocated for a ref_array_item */ | |
1375 | static void free_array_item(struct ref_array_item *item) | |
1376 | { | |
1377 | free((char *)item->symref); | |
c95b7585 KN |
1378 | free(item); |
1379 | } | |
1380 | ||
1381 | /* Free all memory allocated for ref_array */ | |
1382 | void ref_array_clear(struct ref_array *array) | |
1383 | { | |
1384 | int i; | |
1385 | ||
1386 | for (i = 0; i < array->nr; i++) | |
1387 | free_array_item(array->items[i]); | |
1388 | free(array->items); | |
1389 | array->items = NULL; | |
1390 | array->nr = array->alloc = 0; | |
1391 | } | |
1392 | ||
35257aa0 KN |
1393 | static void do_merge_filter(struct ref_filter_cbdata *ref_cbdata) |
1394 | { | |
1395 | struct rev_info revs; | |
1396 | int i, old_nr; | |
1397 | struct ref_filter *filter = ref_cbdata->filter; | |
1398 | struct ref_array *array = ref_cbdata->array; | |
1399 | struct commit **to_clear = xcalloc(sizeof(struct commit *), array->nr); | |
1400 | ||
1401 | init_revisions(&revs, NULL); | |
1402 | ||
1403 | for (i = 0; i < array->nr; i++) { | |
1404 | struct ref_array_item *item = array->items[i]; | |
1405 | add_pending_object(&revs, &item->commit->object, item->refname); | |
1406 | to_clear[i] = item->commit; | |
1407 | } | |
1408 | ||
1409 | filter->merge_commit->object.flags |= UNINTERESTING; | |
1410 | add_pending_object(&revs, &filter->merge_commit->object, ""); | |
1411 | ||
1412 | revs.limited = 1; | |
1413 | if (prepare_revision_walk(&revs)) | |
1414 | die(_("revision walk setup failed")); | |
1415 | ||
1416 | old_nr = array->nr; | |
1417 | array->nr = 0; | |
1418 | ||
1419 | for (i = 0; i < old_nr; i++) { | |
1420 | struct ref_array_item *item = array->items[i]; | |
1421 | struct commit *commit = item->commit; | |
1422 | ||
1423 | int is_merged = !!(commit->object.flags & UNINTERESTING); | |
1424 | ||
1425 | if (is_merged == (filter->merge == REF_FILTER_MERGED_INCLUDE)) | |
1426 | array->items[array->nr++] = array->items[i]; | |
1427 | else | |
1428 | free_array_item(item); | |
1429 | } | |
1430 | ||
1431 | for (i = 0; i < old_nr; i++) | |
1432 | clear_commit_marks(to_clear[i], ALL_REV_FLAGS); | |
1433 | clear_commit_marks(filter->merge_commit, ALL_REV_FLAGS); | |
1434 | free(to_clear); | |
1435 | } | |
1436 | ||
14de7fba KN |
1437 | /* |
1438 | * API for filtering a set of refs. Based on the type of refs the user | |
1439 | * has requested, we iterate through those refs and apply filters | |
1440 | * as per the given ref_filter structure and finally store the | |
1441 | * filtered refs in the ref_array structure. | |
1442 | */ | |
1443 | int filter_refs(struct ref_array *array, struct ref_filter *filter, unsigned int type) | |
1444 | { | |
1445 | struct ref_filter_cbdata ref_cbdata; | |
35257aa0 | 1446 | int ret = 0; |
5b4f2851 | 1447 | unsigned int broken = 0; |
14de7fba KN |
1448 | |
1449 | ref_cbdata.array = array; | |
1450 | ref_cbdata.filter = filter; | |
1451 | ||
5b4f2851 KN |
1452 | if (type & FILTER_REFS_INCLUDE_BROKEN) |
1453 | broken = 1; | |
1454 | filter->kind = type & FILTER_REFS_KIND_MASK; | |
1455 | ||
35257aa0 | 1456 | /* Simple per-ref filtering */ |
5b4f2851 | 1457 | if (!filter->kind) |
14de7fba | 1458 | die("filter_refs: invalid type"); |
5b4f2851 KN |
1459 | else { |
1460 | /* | |
1461 | * For common cases where we need only branches or remotes or tags, | |
1462 | * we only iterate through those refs. If a mix of refs is needed, | |
1463 | * we iterate over all refs and filter out required refs with the help | |
1464 | * of filter_ref_kind(). | |
1465 | */ | |
1466 | if (filter->kind == FILTER_REFS_BRANCHES) | |
1467 | ret = for_each_fullref_in("refs/heads/", ref_filter_handler, &ref_cbdata, broken); | |
1468 | else if (filter->kind == FILTER_REFS_REMOTES) | |
1469 | ret = for_each_fullref_in("refs/remotes/", ref_filter_handler, &ref_cbdata, broken); | |
1470 | else if (filter->kind == FILTER_REFS_TAGS) | |
1471 | ret = for_each_fullref_in("refs/tags/", ref_filter_handler, &ref_cbdata, broken); | |
1472 | else if (filter->kind & FILTER_REFS_ALL) | |
1473 | ret = for_each_fullref_in("", ref_filter_handler, &ref_cbdata, broken); | |
1474 | if (!ret && (filter->kind & FILTER_REFS_DETACHED_HEAD)) | |
1475 | head_ref(ref_filter_handler, &ref_cbdata); | |
1476 | } | |
1477 | ||
35257aa0 KN |
1478 | |
1479 | /* Filters that need revision walking */ | |
1480 | if (filter->merge_commit) | |
1481 | do_merge_filter(&ref_cbdata); | |
1482 | ||
1483 | return ret; | |
14de7fba KN |
1484 | } |
1485 | ||
c95b7585 KN |
1486 | static int cmp_ref_sorting(struct ref_sorting *s, struct ref_array_item *a, struct ref_array_item *b) |
1487 | { | |
1488 | struct atom_value *va, *vb; | |
1489 | int cmp; | |
b072add7 | 1490 | cmp_type cmp_type = used_atom[s->atom].type; |
c95b7585 KN |
1491 | |
1492 | get_ref_atom_value(a, s->atom, &va); | |
1493 | get_ref_atom_value(b, s->atom, &vb); | |
90c00408 KN |
1494 | if (s->version) |
1495 | cmp = versioncmp(va->s, vb->s); | |
1496 | else if (cmp_type == FIELD_STR) | |
c95b7585 | 1497 | cmp = strcmp(va->s, vb->s); |
90c00408 | 1498 | else { |
c95b7585 KN |
1499 | if (va->ul < vb->ul) |
1500 | cmp = -1; | |
1501 | else if (va->ul == vb->ul) | |
9e468334 | 1502 | cmp = strcmp(a->refname, b->refname); |
c95b7585 KN |
1503 | else |
1504 | cmp = 1; | |
c95b7585 | 1505 | } |
90c00408 | 1506 | |
c95b7585 KN |
1507 | return (s->reverse) ? -cmp : cmp; |
1508 | } | |
1509 | ||
1510 | static struct ref_sorting *ref_sorting; | |
1511 | static int compare_refs(const void *a_, const void *b_) | |
1512 | { | |
1513 | struct ref_array_item *a = *((struct ref_array_item **)a_); | |
1514 | struct ref_array_item *b = *((struct ref_array_item **)b_); | |
1515 | struct ref_sorting *s; | |
1516 | ||
1517 | for (s = ref_sorting; s; s = s->next) { | |
1518 | int cmp = cmp_ref_sorting(s, a, b); | |
1519 | if (cmp) | |
1520 | return cmp; | |
1521 | } | |
1522 | return 0; | |
1523 | } | |
1524 | ||
1525 | void ref_array_sort(struct ref_sorting *sorting, struct ref_array *array) | |
1526 | { | |
1527 | ref_sorting = sorting; | |
1528 | qsort(array->items, array->nr, sizeof(struct ref_array_item *), compare_refs); | |
1529 | } | |
1530 | ||
c95b7585 KN |
1531 | static int hex1(char ch) |
1532 | { | |
1533 | if ('0' <= ch && ch <= '9') | |
1534 | return ch - '0'; | |
1535 | else if ('a' <= ch && ch <= 'f') | |
1536 | return ch - 'a' + 10; | |
1537 | else if ('A' <= ch && ch <= 'F') | |
1538 | return ch - 'A' + 10; | |
1539 | return -1; | |
1540 | } | |
1541 | static int hex2(const char *cp) | |
1542 | { | |
1543 | if (cp[0] && cp[1]) | |
1544 | return (hex1(cp[0]) << 4) | hex1(cp[1]); | |
1545 | else | |
1546 | return -1; | |
1547 | } | |
1548 | ||
574e96a2 | 1549 | static void append_literal(const char *cp, const char *ep, struct ref_formatting_state *state) |
c95b7585 | 1550 | { |
574e96a2 KN |
1551 | struct strbuf *s = &state->stack->output; |
1552 | ||
c95b7585 KN |
1553 | while (*cp && (!ep || cp < ep)) { |
1554 | if (*cp == '%') { | |
1555 | if (cp[1] == '%') | |
1556 | cp++; | |
1557 | else { | |
1558 | int ch = hex2(cp + 1); | |
1559 | if (0 <= ch) { | |
574e96a2 | 1560 | strbuf_addch(s, ch); |
c95b7585 KN |
1561 | cp += 3; |
1562 | continue; | |
1563 | } | |
1564 | } | |
1565 | } | |
574e96a2 | 1566 | strbuf_addch(s, *cp); |
c95b7585 KN |
1567 | cp++; |
1568 | } | |
1569 | } | |
1570 | ||
1571 | void show_ref_array_item(struct ref_array_item *info, const char *format, int quote_style) | |
1572 | { | |
1573 | const char *cp, *sp, *ep; | |
574e96a2 KN |
1574 | struct strbuf *final_buf; |
1575 | struct ref_formatting_state state = REF_FORMATTING_STATE_INIT; | |
1576 | ||
1577 | state.quote_style = quote_style; | |
1578 | push_stack_element(&state.stack); | |
c95b7585 KN |
1579 | |
1580 | for (cp = format; *cp && (sp = find_next(cp)); cp = ep + 1) { | |
1581 | struct atom_value *atomv; | |
1582 | ||
1583 | ep = strchr(sp, ')'); | |
1584 | if (cp < sp) | |
574e96a2 | 1585 | append_literal(cp, sp, &state); |
c95b7585 | 1586 | get_ref_atom_value(info, parse_ref_filter_atom(sp + 2, ep), &atomv); |
63d89fbc | 1587 | atomv->handler(atomv, &state); |
c95b7585 KN |
1588 | } |
1589 | if (*cp) { | |
1590 | sp = cp + strlen(cp); | |
574e96a2 | 1591 | append_literal(cp, sp, &state); |
c95b7585 KN |
1592 | } |
1593 | if (need_color_reset_at_eol) { | |
1594 | struct atom_value resetv; | |
1595 | char color[COLOR_MAXLEN] = ""; | |
1596 | ||
1597 | if (color_parse("reset", color) < 0) | |
1598 | die("BUG: couldn't parse 'reset' as a color"); | |
1599 | resetv.s = color; | |
574e96a2 | 1600 | append_atom(&resetv, &state); |
c95b7585 | 1601 | } |
ce592082 KN |
1602 | if (state.stack->prev) |
1603 | die(_("format: %%(end) atom missing")); | |
574e96a2 KN |
1604 | final_buf = &state.stack->output; |
1605 | fwrite(final_buf->buf, 1, final_buf->len, stdout); | |
1606 | pop_stack_element(&state.stack); | |
c95b7585 KN |
1607 | putchar('\n'); |
1608 | } | |
1609 | ||
1610 | /* If no sorting option is given, use refname to sort as default */ | |
1611 | struct ref_sorting *ref_default_sorting(void) | |
1612 | { | |
1613 | static const char cstr_name[] = "refname"; | |
1614 | ||
1615 | struct ref_sorting *sorting = xcalloc(1, sizeof(*sorting)); | |
1616 | ||
1617 | sorting->next = NULL; | |
1618 | sorting->atom = parse_ref_filter_atom(cstr_name, cstr_name + strlen(cstr_name)); | |
1619 | return sorting; | |
1620 | } | |
1621 | ||
1622 | int parse_opt_ref_sorting(const struct option *opt, const char *arg, int unset) | |
1623 | { | |
1624 | struct ref_sorting **sorting_tail = opt->value; | |
1625 | struct ref_sorting *s; | |
1626 | int len; | |
1627 | ||
1628 | if (!arg) /* should --no-sort void the list ? */ | |
1629 | return -1; | |
1630 | ||
1631 | s = xcalloc(1, sizeof(*s)); | |
1632 | s->next = *sorting_tail; | |
1633 | *sorting_tail = s; | |
1634 | ||
1635 | if (*arg == '-') { | |
1636 | s->reverse = 1; | |
1637 | arg++; | |
1638 | } | |
90c00408 KN |
1639 | if (skip_prefix(arg, "version:", &arg) || |
1640 | skip_prefix(arg, "v:", &arg)) | |
1641 | s->version = 1; | |
c95b7585 KN |
1642 | len = strlen(arg); |
1643 | s->atom = parse_ref_filter_atom(arg, arg+len); | |
1644 | return 0; | |
1645 | } | |
5afcb905 KN |
1646 | |
1647 | int parse_opt_merge_filter(const struct option *opt, const char *arg, int unset) | |
1648 | { | |
1649 | struct ref_filter *rf = opt->value; | |
1650 | unsigned char sha1[20]; | |
1651 | ||
1652 | rf->merge = starts_with(opt->long_name, "no") | |
1653 | ? REF_FILTER_MERGED_OMIT | |
1654 | : REF_FILTER_MERGED_INCLUDE; | |
1655 | ||
1656 | if (get_sha1(arg, sha1)) | |
1657 | die(_("malformed object name %s"), arg); | |
1658 | ||
1659 | rf->merge_commit = lookup_commit_reference_gently(sha1, 0); | |
1660 | if (!rf->merge_commit) | |
1661 | return opterror(opt, "must point to a commit", 0); | |
1662 | ||
1663 | return 0; | |
1664 | } |