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1 | #include "cache.h" | |
2 | #include "commit.h" | |
3 | #include "utf8.h" | |
4 | #include "diff.h" | |
5 | #include "revision.h" | |
6 | #include "string-list.h" | |
7 | #include "mailmap.h" | |
8 | #include "log-tree.h" | |
9 | #include "color.h" | |
10 | ||
11 | static char *user_format; | |
12 | ||
13 | static void save_user_format(struct rev_info *rev, const char *cp, int is_tformat) | |
14 | { | |
15 | free(user_format); | |
16 | user_format = xstrdup(cp); | |
17 | if (is_tformat) | |
18 | rev->use_terminator = 1; | |
19 | rev->commit_format = CMIT_FMT_USERFORMAT; | |
20 | } | |
21 | ||
22 | void get_commit_format(const char *arg, struct rev_info *rev) | |
23 | { | |
24 | int i; | |
25 | static struct cmt_fmt_map { | |
26 | const char *n; | |
27 | size_t cmp_len; | |
28 | enum cmit_fmt v; | |
29 | } cmt_fmts[] = { | |
30 | { "raw", 1, CMIT_FMT_RAW }, | |
31 | { "medium", 1, CMIT_FMT_MEDIUM }, | |
32 | { "short", 1, CMIT_FMT_SHORT }, | |
33 | { "email", 1, CMIT_FMT_EMAIL }, | |
34 | { "full", 5, CMIT_FMT_FULL }, | |
35 | { "fuller", 5, CMIT_FMT_FULLER }, | |
36 | { "oneline", 1, CMIT_FMT_ONELINE }, | |
37 | }; | |
38 | ||
39 | rev->use_terminator = 0; | |
40 | if (!arg || !*arg) { | |
41 | rev->commit_format = CMIT_FMT_DEFAULT; | |
42 | return; | |
43 | } | |
44 | if (!prefixcmp(arg, "format:") || !prefixcmp(arg, "tformat:")) { | |
45 | save_user_format(rev, strchr(arg, ':') + 1, arg[0] == 't'); | |
46 | return; | |
47 | } | |
48 | for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) { | |
49 | if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) && | |
50 | !strncmp(arg, cmt_fmts[i].n, strlen(arg))) { | |
51 | if (cmt_fmts[i].v == CMIT_FMT_ONELINE) | |
52 | rev->use_terminator = 1; | |
53 | rev->commit_format = cmt_fmts[i].v; | |
54 | return; | |
55 | } | |
56 | } | |
57 | if (strchr(arg, '%')) { | |
58 | save_user_format(rev, arg, 1); | |
59 | return; | |
60 | } | |
61 | ||
62 | die("invalid --pretty format: %s", arg); | |
63 | } | |
64 | ||
65 | /* | |
66 | * Generic support for pretty-printing the header | |
67 | */ | |
68 | static int get_one_line(const char *msg) | |
69 | { | |
70 | int ret = 0; | |
71 | ||
72 | for (;;) { | |
73 | char c = *msg++; | |
74 | if (!c) | |
75 | break; | |
76 | ret++; | |
77 | if (c == '\n') | |
78 | break; | |
79 | } | |
80 | return ret; | |
81 | } | |
82 | ||
83 | /* High bit set, or ISO-2022-INT */ | |
84 | int non_ascii(int ch) | |
85 | { | |
86 | return !isascii(ch) || ch == '\033'; | |
87 | } | |
88 | ||
89 | static int is_rfc2047_special(char ch) | |
90 | { | |
91 | return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_')); | |
92 | } | |
93 | ||
94 | static void add_rfc2047(struct strbuf *sb, const char *line, int len, | |
95 | const char *encoding) | |
96 | { | |
97 | int i, last; | |
98 | ||
99 | for (i = 0; i < len; i++) { | |
100 | int ch = line[i]; | |
101 | if (non_ascii(ch)) | |
102 | goto needquote; | |
103 | if ((i + 1 < len) && (ch == '=' && line[i+1] == '?')) | |
104 | goto needquote; | |
105 | } | |
106 | strbuf_add(sb, line, len); | |
107 | return; | |
108 | ||
109 | needquote: | |
110 | strbuf_grow(sb, len * 3 + strlen(encoding) + 100); | |
111 | strbuf_addf(sb, "=?%s?q?", encoding); | |
112 | for (i = last = 0; i < len; i++) { | |
113 | unsigned ch = line[i] & 0xFF; | |
114 | /* | |
115 | * We encode ' ' using '=20' even though rfc2047 | |
116 | * allows using '_' for readability. Unfortunately, | |
117 | * many programs do not understand this and just | |
118 | * leave the underscore in place. | |
119 | */ | |
120 | if (is_rfc2047_special(ch) || ch == ' ') { | |
121 | strbuf_add(sb, line + last, i - last); | |
122 | strbuf_addf(sb, "=%02X", ch); | |
123 | last = i + 1; | |
124 | } | |
125 | } | |
126 | strbuf_add(sb, line + last, len - last); | |
127 | strbuf_addstr(sb, "?="); | |
128 | } | |
129 | ||
130 | void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb, | |
131 | const char *line, enum date_mode dmode, | |
132 | const char *encoding) | |
133 | { | |
134 | char *date; | |
135 | int namelen; | |
136 | unsigned long time; | |
137 | int tz; | |
138 | ||
139 | if (fmt == CMIT_FMT_ONELINE) | |
140 | return; | |
141 | date = strchr(line, '>'); | |
142 | if (!date) | |
143 | return; | |
144 | namelen = ++date - line; | |
145 | time = strtoul(date, &date, 10); | |
146 | tz = strtol(date, NULL, 10); | |
147 | ||
148 | if (fmt == CMIT_FMT_EMAIL) { | |
149 | char *name_tail = strchr(line, '<'); | |
150 | int display_name_length; | |
151 | if (!name_tail) | |
152 | return; | |
153 | while (line < name_tail && isspace(name_tail[-1])) | |
154 | name_tail--; | |
155 | display_name_length = name_tail - line; | |
156 | strbuf_addstr(sb, "From: "); | |
157 | add_rfc2047(sb, line, display_name_length, encoding); | |
158 | strbuf_add(sb, name_tail, namelen - display_name_length); | |
159 | strbuf_addch(sb, '\n'); | |
160 | } else { | |
161 | strbuf_addf(sb, "%s: %.*s%.*s\n", what, | |
162 | (fmt == CMIT_FMT_FULLER) ? 4 : 0, | |
163 | " ", namelen, line); | |
164 | } | |
165 | switch (fmt) { | |
166 | case CMIT_FMT_MEDIUM: | |
167 | strbuf_addf(sb, "Date: %s\n", show_date(time, tz, dmode)); | |
168 | break; | |
169 | case CMIT_FMT_EMAIL: | |
170 | strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822)); | |
171 | break; | |
172 | case CMIT_FMT_FULLER: | |
173 | strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, dmode)); | |
174 | break; | |
175 | default: | |
176 | /* notin' */ | |
177 | break; | |
178 | } | |
179 | } | |
180 | ||
181 | static int is_empty_line(const char *line, int *len_p) | |
182 | { | |
183 | int len = *len_p; | |
184 | while (len && isspace(line[len-1])) | |
185 | len--; | |
186 | *len_p = len; | |
187 | return !len; | |
188 | } | |
189 | ||
190 | static const char *skip_empty_lines(const char *msg) | |
191 | { | |
192 | for (;;) { | |
193 | int linelen = get_one_line(msg); | |
194 | int ll = linelen; | |
195 | if (!linelen) | |
196 | break; | |
197 | if (!is_empty_line(msg, &ll)) | |
198 | break; | |
199 | msg += linelen; | |
200 | } | |
201 | return msg; | |
202 | } | |
203 | ||
204 | static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb, | |
205 | const struct commit *commit, int abbrev) | |
206 | { | |
207 | struct commit_list *parent = commit->parents; | |
208 | ||
209 | if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) || | |
210 | !parent || !parent->next) | |
211 | return; | |
212 | ||
213 | strbuf_addstr(sb, "Merge:"); | |
214 | ||
215 | while (parent) { | |
216 | struct commit *p = parent->item; | |
217 | const char *hex = NULL; | |
218 | if (abbrev) | |
219 | hex = find_unique_abbrev(p->object.sha1, abbrev); | |
220 | if (!hex) | |
221 | hex = sha1_to_hex(p->object.sha1); | |
222 | parent = parent->next; | |
223 | ||
224 | strbuf_addf(sb, " %s", hex); | |
225 | } | |
226 | strbuf_addch(sb, '\n'); | |
227 | } | |
228 | ||
229 | static char *get_header(const struct commit *commit, const char *key) | |
230 | { | |
231 | int key_len = strlen(key); | |
232 | const char *line = commit->buffer; | |
233 | ||
234 | for (;;) { | |
235 | const char *eol = strchr(line, '\n'), *next; | |
236 | ||
237 | if (line == eol) | |
238 | return NULL; | |
239 | if (!eol) { | |
240 | eol = line + strlen(line); | |
241 | next = NULL; | |
242 | } else | |
243 | next = eol + 1; | |
244 | if (eol - line > key_len && | |
245 | !strncmp(line, key, key_len) && | |
246 | line[key_len] == ' ') { | |
247 | return xmemdupz(line + key_len + 1, eol - line - key_len - 1); | |
248 | } | |
249 | line = next; | |
250 | } | |
251 | } | |
252 | ||
253 | static char *replace_encoding_header(char *buf, const char *encoding) | |
254 | { | |
255 | struct strbuf tmp = STRBUF_INIT; | |
256 | size_t start, len; | |
257 | char *cp = buf; | |
258 | ||
259 | /* guess if there is an encoding header before a \n\n */ | |
260 | while (strncmp(cp, "encoding ", strlen("encoding "))) { | |
261 | cp = strchr(cp, '\n'); | |
262 | if (!cp || *++cp == '\n') | |
263 | return buf; | |
264 | } | |
265 | start = cp - buf; | |
266 | cp = strchr(cp, '\n'); | |
267 | if (!cp) | |
268 | return buf; /* should not happen but be defensive */ | |
269 | len = cp + 1 - (buf + start); | |
270 | ||
271 | strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1); | |
272 | if (is_encoding_utf8(encoding)) { | |
273 | /* we have re-coded to UTF-8; drop the header */ | |
274 | strbuf_remove(&tmp, start, len); | |
275 | } else { | |
276 | /* just replaces XXXX in 'encoding XXXX\n' */ | |
277 | strbuf_splice(&tmp, start + strlen("encoding "), | |
278 | len - strlen("encoding \n"), | |
279 | encoding, strlen(encoding)); | |
280 | } | |
281 | return strbuf_detach(&tmp, NULL); | |
282 | } | |
283 | ||
284 | static char *logmsg_reencode(const struct commit *commit, | |
285 | const char *output_encoding) | |
286 | { | |
287 | static const char *utf8 = "utf-8"; | |
288 | const char *use_encoding; | |
289 | char *encoding; | |
290 | char *out; | |
291 | ||
292 | if (!*output_encoding) | |
293 | return NULL; | |
294 | encoding = get_header(commit, "encoding"); | |
295 | use_encoding = encoding ? encoding : utf8; | |
296 | if (!strcmp(use_encoding, output_encoding)) | |
297 | if (encoding) /* we'll strip encoding header later */ | |
298 | out = xstrdup(commit->buffer); | |
299 | else | |
300 | return NULL; /* nothing to do */ | |
301 | else | |
302 | out = reencode_string(commit->buffer, | |
303 | output_encoding, use_encoding); | |
304 | if (out) | |
305 | out = replace_encoding_header(out, output_encoding); | |
306 | ||
307 | free(encoding); | |
308 | return out; | |
309 | } | |
310 | ||
311 | static int mailmap_name(char *email, int email_len, char *name, int name_len) | |
312 | { | |
313 | static struct string_list *mail_map; | |
314 | if (!mail_map) { | |
315 | mail_map = xcalloc(1, sizeof(*mail_map)); | |
316 | read_mailmap(mail_map, NULL); | |
317 | } | |
318 | return mail_map->nr && map_user(mail_map, email, email_len, name, name_len); | |
319 | } | |
320 | ||
321 | static size_t format_person_part(struct strbuf *sb, char part, | |
322 | const char *msg, int len, enum date_mode dmode) | |
323 | { | |
324 | /* currently all placeholders have same length */ | |
325 | const int placeholder_len = 2; | |
326 | int start, end, tz = 0; | |
327 | unsigned long date = 0; | |
328 | char *ep; | |
329 | const char *name_start, *name_end, *mail_start, *mail_end, *msg_end = msg+len; | |
330 | char person_name[1024]; | |
331 | char person_mail[1024]; | |
332 | ||
333 | /* advance 'end' to point to email start delimiter */ | |
334 | for (end = 0; end < len && msg[end] != '<'; end++) | |
335 | ; /* do nothing */ | |
336 | ||
337 | /* | |
338 | * When end points at the '<' that we found, it should have | |
339 | * matching '>' later, which means 'end' must be strictly | |
340 | * below len - 1. | |
341 | */ | |
342 | if (end >= len - 2) | |
343 | goto skip; | |
344 | ||
345 | /* Seek for both name and email part */ | |
346 | name_start = msg; | |
347 | name_end = msg+end; | |
348 | while (name_end > name_start && isspace(*(name_end-1))) | |
349 | name_end--; | |
350 | mail_start = msg+end+1; | |
351 | mail_end = mail_start; | |
352 | while (mail_end < msg_end && *mail_end != '>') | |
353 | mail_end++; | |
354 | if (mail_end == msg_end) | |
355 | goto skip; | |
356 | end = mail_end-msg; | |
357 | ||
358 | if (part == 'N' || part == 'E') { /* mailmap lookup */ | |
359 | strlcpy(person_name, name_start, name_end-name_start+1); | |
360 | strlcpy(person_mail, mail_start, mail_end-mail_start+1); | |
361 | mailmap_name(person_mail, sizeof(person_mail), person_name, sizeof(person_name)); | |
362 | name_start = person_name; | |
363 | name_end = name_start + strlen(person_name); | |
364 | mail_start = person_mail; | |
365 | mail_end = mail_start + strlen(person_mail); | |
366 | } | |
367 | if (part == 'n' || part == 'N') { /* name */ | |
368 | strbuf_add(sb, name_start, name_end-name_start); | |
369 | return placeholder_len; | |
370 | } | |
371 | if (part == 'e' || part == 'E') { /* email */ | |
372 | strbuf_add(sb, mail_start, mail_end-mail_start); | |
373 | return placeholder_len; | |
374 | } | |
375 | ||
376 | /* advance 'start' to point to date start delimiter */ | |
377 | for (start = end + 1; start < len && isspace(msg[start]); start++) | |
378 | ; /* do nothing */ | |
379 | if (start >= len) | |
380 | goto skip; | |
381 | date = strtoul(msg + start, &ep, 10); | |
382 | if (msg + start == ep) | |
383 | goto skip; | |
384 | ||
385 | if (part == 't') { /* date, UNIX timestamp */ | |
386 | strbuf_add(sb, msg + start, ep - (msg + start)); | |
387 | return placeholder_len; | |
388 | } | |
389 | ||
390 | /* parse tz */ | |
391 | for (start = ep - msg + 1; start < len && isspace(msg[start]); start++) | |
392 | ; /* do nothing */ | |
393 | if (start + 1 < len) { | |
394 | tz = strtoul(msg + start + 1, NULL, 10); | |
395 | if (msg[start] == '-') | |
396 | tz = -tz; | |
397 | } | |
398 | ||
399 | switch (part) { | |
400 | case 'd': /* date */ | |
401 | strbuf_addstr(sb, show_date(date, tz, dmode)); | |
402 | return placeholder_len; | |
403 | case 'D': /* date, RFC2822 style */ | |
404 | strbuf_addstr(sb, show_date(date, tz, DATE_RFC2822)); | |
405 | return placeholder_len; | |
406 | case 'r': /* date, relative */ | |
407 | strbuf_addstr(sb, show_date(date, tz, DATE_RELATIVE)); | |
408 | return placeholder_len; | |
409 | case 'i': /* date, ISO 8601 */ | |
410 | strbuf_addstr(sb, show_date(date, tz, DATE_ISO8601)); | |
411 | return placeholder_len; | |
412 | } | |
413 | ||
414 | skip: | |
415 | /* | |
416 | * bogus commit, 'sb' cannot be updated, but we still need to | |
417 | * compute a valid return value. | |
418 | */ | |
419 | if (part == 'n' || part == 'e' || part == 't' || part == 'd' | |
420 | || part == 'D' || part == 'r' || part == 'i') | |
421 | return placeholder_len; | |
422 | ||
423 | return 0; /* unknown placeholder */ | |
424 | } | |
425 | ||
426 | struct chunk { | |
427 | size_t off; | |
428 | size_t len; | |
429 | }; | |
430 | ||
431 | struct format_commit_context { | |
432 | const struct commit *commit; | |
433 | enum date_mode dmode; | |
434 | unsigned commit_header_parsed:1; | |
435 | unsigned commit_message_parsed:1; | |
436 | ||
437 | /* These offsets are relative to the start of the commit message. */ | |
438 | struct chunk author; | |
439 | struct chunk committer; | |
440 | struct chunk encoding; | |
441 | size_t message_off; | |
442 | size_t subject_off; | |
443 | size_t body_off; | |
444 | ||
445 | /* The following ones are relative to the result struct strbuf. */ | |
446 | struct chunk abbrev_commit_hash; | |
447 | struct chunk abbrev_tree_hash; | |
448 | struct chunk abbrev_parent_hashes; | |
449 | }; | |
450 | ||
451 | static int add_again(struct strbuf *sb, struct chunk *chunk) | |
452 | { | |
453 | if (chunk->len) { | |
454 | strbuf_adddup(sb, chunk->off, chunk->len); | |
455 | return 1; | |
456 | } | |
457 | ||
458 | /* | |
459 | * We haven't seen this chunk before. Our caller is surely | |
460 | * going to add it the hard way now. Remember the most likely | |
461 | * start of the to-be-added chunk: the current end of the | |
462 | * struct strbuf. | |
463 | */ | |
464 | chunk->off = sb->len; | |
465 | return 0; | |
466 | } | |
467 | ||
468 | static void parse_commit_header(struct format_commit_context *context) | |
469 | { | |
470 | const char *msg = context->commit->buffer; | |
471 | int i; | |
472 | ||
473 | for (i = 0; msg[i]; i++) { | |
474 | int eol; | |
475 | for (eol = i; msg[eol] && msg[eol] != '\n'; eol++) | |
476 | ; /* do nothing */ | |
477 | ||
478 | if (i == eol) { | |
479 | break; | |
480 | } else if (!prefixcmp(msg + i, "author ")) { | |
481 | context->author.off = i + 7; | |
482 | context->author.len = eol - i - 7; | |
483 | } else if (!prefixcmp(msg + i, "committer ")) { | |
484 | context->committer.off = i + 10; | |
485 | context->committer.len = eol - i - 10; | |
486 | } else if (!prefixcmp(msg + i, "encoding ")) { | |
487 | context->encoding.off = i + 9; | |
488 | context->encoding.len = eol - i - 9; | |
489 | } | |
490 | i = eol; | |
491 | } | |
492 | context->message_off = i; | |
493 | context->commit_header_parsed = 1; | |
494 | } | |
495 | ||
496 | const char *format_subject(struct strbuf *sb, const char *msg, | |
497 | const char *line_separator) | |
498 | { | |
499 | int first = 1; | |
500 | ||
501 | for (;;) { | |
502 | const char *line = msg; | |
503 | int linelen = get_one_line(line); | |
504 | ||
505 | msg += linelen; | |
506 | if (!linelen || is_empty_line(line, &linelen)) | |
507 | break; | |
508 | ||
509 | if (!sb) | |
510 | continue; | |
511 | strbuf_grow(sb, linelen + 2); | |
512 | if (!first) | |
513 | strbuf_addstr(sb, line_separator); | |
514 | strbuf_add(sb, line, linelen); | |
515 | first = 0; | |
516 | } | |
517 | return msg; | |
518 | } | |
519 | ||
520 | static void parse_commit_message(struct format_commit_context *c) | |
521 | { | |
522 | const char *msg = c->commit->buffer + c->message_off; | |
523 | const char *start = c->commit->buffer; | |
524 | ||
525 | msg = skip_empty_lines(msg); | |
526 | c->subject_off = msg - start; | |
527 | ||
528 | msg = format_subject(NULL, msg, NULL); | |
529 | msg = skip_empty_lines(msg); | |
530 | c->body_off = msg - start; | |
531 | ||
532 | c->commit_message_parsed = 1; | |
533 | } | |
534 | ||
535 | static void format_decoration(struct strbuf *sb, const struct commit *commit) | |
536 | { | |
537 | struct name_decoration *d; | |
538 | const char *prefix = " ("; | |
539 | ||
540 | load_ref_decorations(); | |
541 | d = lookup_decoration(&name_decoration, &commit->object); | |
542 | while (d) { | |
543 | strbuf_addstr(sb, prefix); | |
544 | prefix = ", "; | |
545 | strbuf_addstr(sb, d->name); | |
546 | d = d->next; | |
547 | } | |
548 | if (prefix[0] == ',') | |
549 | strbuf_addch(sb, ')'); | |
550 | } | |
551 | ||
552 | static size_t format_commit_item(struct strbuf *sb, const char *placeholder, | |
553 | void *context) | |
554 | { | |
555 | struct format_commit_context *c = context; | |
556 | const struct commit *commit = c->commit; | |
557 | const char *msg = commit->buffer; | |
558 | struct commit_list *p; | |
559 | int h1, h2; | |
560 | ||
561 | /* these are independent of the commit */ | |
562 | switch (placeholder[0]) { | |
563 | case 'C': | |
564 | if (placeholder[1] == '(') { | |
565 | const char *end = strchr(placeholder + 2, ')'); | |
566 | char color[COLOR_MAXLEN]; | |
567 | if (!end) | |
568 | return 0; | |
569 | color_parse_mem(placeholder + 2, | |
570 | end - (placeholder + 2), | |
571 | "--pretty format", color); | |
572 | strbuf_addstr(sb, color); | |
573 | return end - placeholder + 1; | |
574 | } | |
575 | if (!prefixcmp(placeholder + 1, "red")) { | |
576 | strbuf_addstr(sb, GIT_COLOR_RED); | |
577 | return 4; | |
578 | } else if (!prefixcmp(placeholder + 1, "green")) { | |
579 | strbuf_addstr(sb, GIT_COLOR_GREEN); | |
580 | return 6; | |
581 | } else if (!prefixcmp(placeholder + 1, "blue")) { | |
582 | strbuf_addstr(sb, GIT_COLOR_BLUE); | |
583 | return 5; | |
584 | } else if (!prefixcmp(placeholder + 1, "reset")) { | |
585 | strbuf_addstr(sb, GIT_COLOR_RESET); | |
586 | return 6; | |
587 | } else | |
588 | return 0; | |
589 | case 'n': /* newline */ | |
590 | strbuf_addch(sb, '\n'); | |
591 | return 1; | |
592 | case 'x': | |
593 | /* %x00 == NUL, %x0a == LF, etc. */ | |
594 | if (0 <= (h1 = hexval_table[0xff & placeholder[1]]) && | |
595 | h1 <= 16 && | |
596 | 0 <= (h2 = hexval_table[0xff & placeholder[2]]) && | |
597 | h2 <= 16) { | |
598 | strbuf_addch(sb, (h1<<4)|h2); | |
599 | return 3; | |
600 | } else | |
601 | return 0; | |
602 | } | |
603 | ||
604 | /* these depend on the commit */ | |
605 | if (!commit->object.parsed) | |
606 | parse_object(commit->object.sha1); | |
607 | ||
608 | switch (placeholder[0]) { | |
609 | case 'H': /* commit hash */ | |
610 | strbuf_addstr(sb, sha1_to_hex(commit->object.sha1)); | |
611 | return 1; | |
612 | case 'h': /* abbreviated commit hash */ | |
613 | if (add_again(sb, &c->abbrev_commit_hash)) | |
614 | return 1; | |
615 | strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1, | |
616 | DEFAULT_ABBREV)); | |
617 | c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off; | |
618 | return 1; | |
619 | case 'T': /* tree hash */ | |
620 | strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1)); | |
621 | return 1; | |
622 | case 't': /* abbreviated tree hash */ | |
623 | if (add_again(sb, &c->abbrev_tree_hash)) | |
624 | return 1; | |
625 | strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1, | |
626 | DEFAULT_ABBREV)); | |
627 | c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off; | |
628 | return 1; | |
629 | case 'P': /* parent hashes */ | |
630 | for (p = commit->parents; p; p = p->next) { | |
631 | if (p != commit->parents) | |
632 | strbuf_addch(sb, ' '); | |
633 | strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1)); | |
634 | } | |
635 | return 1; | |
636 | case 'p': /* abbreviated parent hashes */ | |
637 | if (add_again(sb, &c->abbrev_parent_hashes)) | |
638 | return 1; | |
639 | for (p = commit->parents; p; p = p->next) { | |
640 | if (p != commit->parents) | |
641 | strbuf_addch(sb, ' '); | |
642 | strbuf_addstr(sb, find_unique_abbrev( | |
643 | p->item->object.sha1, DEFAULT_ABBREV)); | |
644 | } | |
645 | c->abbrev_parent_hashes.len = sb->len - | |
646 | c->abbrev_parent_hashes.off; | |
647 | return 1; | |
648 | case 'm': /* left/right/bottom */ | |
649 | strbuf_addch(sb, (commit->object.flags & BOUNDARY) | |
650 | ? '-' | |
651 | : (commit->object.flags & SYMMETRIC_LEFT) | |
652 | ? '<' | |
653 | : '>'); | |
654 | return 1; | |
655 | case 'd': | |
656 | format_decoration(sb, commit); | |
657 | return 1; | |
658 | } | |
659 | ||
660 | /* For the rest we have to parse the commit header. */ | |
661 | if (!c->commit_header_parsed) | |
662 | parse_commit_header(c); | |
663 | ||
664 | switch (placeholder[0]) { | |
665 | case 'a': /* author ... */ | |
666 | return format_person_part(sb, placeholder[1], | |
667 | msg + c->author.off, c->author.len, | |
668 | c->dmode); | |
669 | case 'c': /* committer ... */ | |
670 | return format_person_part(sb, placeholder[1], | |
671 | msg + c->committer.off, c->committer.len, | |
672 | c->dmode); | |
673 | case 'e': /* encoding */ | |
674 | strbuf_add(sb, msg + c->encoding.off, c->encoding.len); | |
675 | return 1; | |
676 | } | |
677 | ||
678 | /* Now we need to parse the commit message. */ | |
679 | if (!c->commit_message_parsed) | |
680 | parse_commit_message(c); | |
681 | ||
682 | switch (placeholder[0]) { | |
683 | case 's': /* subject */ | |
684 | format_subject(sb, msg + c->subject_off, " "); | |
685 | return 1; | |
686 | case 'b': /* body */ | |
687 | strbuf_addstr(sb, msg + c->body_off); | |
688 | return 1; | |
689 | } | |
690 | return 0; /* unknown placeholder */ | |
691 | } | |
692 | ||
693 | void format_commit_message(const struct commit *commit, | |
694 | const void *format, struct strbuf *sb, | |
695 | enum date_mode dmode) | |
696 | { | |
697 | struct format_commit_context context; | |
698 | ||
699 | memset(&context, 0, sizeof(context)); | |
700 | context.commit = commit; | |
701 | context.dmode = dmode; | |
702 | strbuf_expand(sb, format, format_commit_item, &context); | |
703 | } | |
704 | ||
705 | static void pp_header(enum cmit_fmt fmt, | |
706 | int abbrev, | |
707 | enum date_mode dmode, | |
708 | const char *encoding, | |
709 | const struct commit *commit, | |
710 | const char **msg_p, | |
711 | struct strbuf *sb) | |
712 | { | |
713 | int parents_shown = 0; | |
714 | ||
715 | for (;;) { | |
716 | const char *line = *msg_p; | |
717 | int linelen = get_one_line(*msg_p); | |
718 | ||
719 | if (!linelen) | |
720 | return; | |
721 | *msg_p += linelen; | |
722 | ||
723 | if (linelen == 1) | |
724 | /* End of header */ | |
725 | return; | |
726 | ||
727 | if (fmt == CMIT_FMT_RAW) { | |
728 | strbuf_add(sb, line, linelen); | |
729 | continue; | |
730 | } | |
731 | ||
732 | if (!memcmp(line, "parent ", 7)) { | |
733 | if (linelen != 48) | |
734 | die("bad parent line in commit"); | |
735 | continue; | |
736 | } | |
737 | ||
738 | if (!parents_shown) { | |
739 | struct commit_list *parent; | |
740 | int num; | |
741 | for (parent = commit->parents, num = 0; | |
742 | parent; | |
743 | parent = parent->next, num++) | |
744 | ; | |
745 | /* with enough slop */ | |
746 | strbuf_grow(sb, num * 50 + 20); | |
747 | add_merge_info(fmt, sb, commit, abbrev); | |
748 | parents_shown = 1; | |
749 | } | |
750 | ||
751 | /* | |
752 | * MEDIUM == DEFAULT shows only author with dates. | |
753 | * FULL shows both authors but not dates. | |
754 | * FULLER shows both authors and dates. | |
755 | */ | |
756 | if (!memcmp(line, "author ", 7)) { | |
757 | strbuf_grow(sb, linelen + 80); | |
758 | pp_user_info("Author", fmt, sb, line + 7, dmode, encoding); | |
759 | } | |
760 | if (!memcmp(line, "committer ", 10) && | |
761 | (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) { | |
762 | strbuf_grow(sb, linelen + 80); | |
763 | pp_user_info("Commit", fmt, sb, line + 10, dmode, encoding); | |
764 | } | |
765 | } | |
766 | } | |
767 | ||
768 | void pp_title_line(enum cmit_fmt fmt, | |
769 | const char **msg_p, | |
770 | struct strbuf *sb, | |
771 | const char *subject, | |
772 | const char *after_subject, | |
773 | const char *encoding, | |
774 | int need_8bit_cte) | |
775 | { | |
776 | const char *line_separator = (fmt == CMIT_FMT_EMAIL) ? "\n " : " "; | |
777 | struct strbuf title; | |
778 | ||
779 | strbuf_init(&title, 80); | |
780 | *msg_p = format_subject(&title, *msg_p, line_separator); | |
781 | ||
782 | strbuf_grow(sb, title.len + 1024); | |
783 | if (subject) { | |
784 | strbuf_addstr(sb, subject); | |
785 | add_rfc2047(sb, title.buf, title.len, encoding); | |
786 | } else { | |
787 | strbuf_addbuf(sb, &title); | |
788 | } | |
789 | strbuf_addch(sb, '\n'); | |
790 | ||
791 | if (need_8bit_cte > 0) { | |
792 | const char *header_fmt = | |
793 | "MIME-Version: 1.0\n" | |
794 | "Content-Type: text/plain; charset=%s\n" | |
795 | "Content-Transfer-Encoding: 8bit\n"; | |
796 | strbuf_addf(sb, header_fmt, encoding); | |
797 | } | |
798 | if (after_subject) { | |
799 | strbuf_addstr(sb, after_subject); | |
800 | } | |
801 | if (fmt == CMIT_FMT_EMAIL) { | |
802 | strbuf_addch(sb, '\n'); | |
803 | } | |
804 | strbuf_release(&title); | |
805 | } | |
806 | ||
807 | void pp_remainder(enum cmit_fmt fmt, | |
808 | const char **msg_p, | |
809 | struct strbuf *sb, | |
810 | int indent) | |
811 | { | |
812 | int first = 1; | |
813 | for (;;) { | |
814 | const char *line = *msg_p; | |
815 | int linelen = get_one_line(line); | |
816 | *msg_p += linelen; | |
817 | ||
818 | if (!linelen) | |
819 | break; | |
820 | ||
821 | if (is_empty_line(line, &linelen)) { | |
822 | if (first) | |
823 | continue; | |
824 | if (fmt == CMIT_FMT_SHORT) | |
825 | break; | |
826 | } | |
827 | first = 0; | |
828 | ||
829 | strbuf_grow(sb, linelen + indent + 20); | |
830 | if (indent) { | |
831 | memset(sb->buf + sb->len, ' ', indent); | |
832 | strbuf_setlen(sb, sb->len + indent); | |
833 | } | |
834 | strbuf_add(sb, line, linelen); | |
835 | strbuf_addch(sb, '\n'); | |
836 | } | |
837 | } | |
838 | ||
839 | char *reencode_commit_message(const struct commit *commit, const char **encoding_p) | |
840 | { | |
841 | const char *encoding; | |
842 | ||
843 | encoding = (git_log_output_encoding | |
844 | ? git_log_output_encoding | |
845 | : git_commit_encoding); | |
846 | if (!encoding) | |
847 | encoding = "utf-8"; | |
848 | if (encoding_p) | |
849 | *encoding_p = encoding; | |
850 | return logmsg_reencode(commit, encoding); | |
851 | } | |
852 | ||
853 | void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit, | |
854 | struct strbuf *sb, int abbrev, | |
855 | const char *subject, const char *after_subject, | |
856 | enum date_mode dmode, int need_8bit_cte) | |
857 | { | |
858 | unsigned long beginning_of_body; | |
859 | int indent = 4; | |
860 | const char *msg = commit->buffer; | |
861 | char *reencoded; | |
862 | const char *encoding; | |
863 | ||
864 | if (fmt == CMIT_FMT_USERFORMAT) { | |
865 | format_commit_message(commit, user_format, sb, dmode); | |
866 | return; | |
867 | } | |
868 | ||
869 | reencoded = reencode_commit_message(commit, &encoding); | |
870 | if (reencoded) { | |
871 | msg = reencoded; | |
872 | } | |
873 | ||
874 | if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL) | |
875 | indent = 0; | |
876 | ||
877 | /* | |
878 | * We need to check and emit Content-type: to mark it | |
879 | * as 8-bit if we haven't done so. | |
880 | */ | |
881 | if (fmt == CMIT_FMT_EMAIL && need_8bit_cte == 0) { | |
882 | int i, ch, in_body; | |
883 | ||
884 | for (in_body = i = 0; (ch = msg[i]); i++) { | |
885 | if (!in_body) { | |
886 | /* author could be non 7-bit ASCII but | |
887 | * the log may be so; skip over the | |
888 | * header part first. | |
889 | */ | |
890 | if (ch == '\n' && msg[i+1] == '\n') | |
891 | in_body = 1; | |
892 | } | |
893 | else if (non_ascii(ch)) { | |
894 | need_8bit_cte = 1; | |
895 | break; | |
896 | } | |
897 | } | |
898 | } | |
899 | ||
900 | pp_header(fmt, abbrev, dmode, encoding, commit, &msg, sb); | |
901 | if (fmt != CMIT_FMT_ONELINE && !subject) { | |
902 | strbuf_addch(sb, '\n'); | |
903 | } | |
904 | ||
905 | /* Skip excess blank lines at the beginning of body, if any... */ | |
906 | msg = skip_empty_lines(msg); | |
907 | ||
908 | /* These formats treat the title line specially. */ | |
909 | if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL) | |
910 | pp_title_line(fmt, &msg, sb, subject, | |
911 | after_subject, encoding, need_8bit_cte); | |
912 | ||
913 | beginning_of_body = sb->len; | |
914 | if (fmt != CMIT_FMT_ONELINE) | |
915 | pp_remainder(fmt, &msg, sb, indent); | |
916 | strbuf_rtrim(sb); | |
917 | ||
918 | /* Make sure there is an EOLN for the non-oneline case */ | |
919 | if (fmt != CMIT_FMT_ONELINE) | |
920 | strbuf_addch(sb, '\n'); | |
921 | ||
922 | /* | |
923 | * The caller may append additional body text in e-mail | |
924 | * format. Make sure we did not strip the blank line | |
925 | * between the header and the body. | |
926 | */ | |
927 | if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body) | |
928 | strbuf_addch(sb, '\n'); | |
929 | free(reencoded); | |
930 | } |