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Teach git-describe to use peeled ref information when scanning tags
[git/git-p4.git] / pretty.c
blob997f5837d521ded5f158d12abc0c025f74e83341
1 #include "cache.h"
2 #include "commit.h"
3 #include "utf8.h"
4 #include "diff.h"
5 #include "revision.h"
6
7 static struct cmt_fmt_map {
8 const char *n;
9 size_t cmp_len;
10 enum cmit_fmt v;
11 } cmt_fmts[] = {
12 { "raw", 1, CMIT_FMT_RAW },
13 { "medium", 1, CMIT_FMT_MEDIUM },
14 { "short", 1, CMIT_FMT_SHORT },
15 { "email", 1, CMIT_FMT_EMAIL },
16 { "full", 5, CMIT_FMT_FULL },
17 { "fuller", 5, CMIT_FMT_FULLER },
18 { "oneline", 1, CMIT_FMT_ONELINE },
19 { "format:", 7, CMIT_FMT_USERFORMAT},
20 };
21
22 static char *user_format;
23
24 enum cmit_fmt get_commit_format(const char *arg)
25 {
26 int i;
27
28 if (!arg || !*arg)
29 return CMIT_FMT_DEFAULT;
30 if (*arg == '=')
31 arg++;
32 if (!prefixcmp(arg, "format:")) {
33 if (user_format)
34 free(user_format);
35 user_format = xstrdup(arg + 7);
36 return CMIT_FMT_USERFORMAT;
37 }
38 for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
39 if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) &&
40 !strncmp(arg, cmt_fmts[i].n, strlen(arg)))
41 return cmt_fmts[i].v;
42 }
43
44 die("invalid --pretty format: %s", arg);
45 }
46
47 /*
48 * Generic support for pretty-printing the header
49 */
50 static int get_one_line(const char *msg)
51 {
52 int ret = 0;
53
54 for (;;) {
55 char c = *msg++;
56 if (!c)
57 break;
58 ret++;
59 if (c == '\n')
60 break;
61 }
62 return ret;
63 }
64
65 /* High bit set, or ISO-2022-INT */
66 int non_ascii(int ch)
67 {
68 ch = (ch & 0xff);
69 return ((ch & 0x80) || (ch == 0x1b));
70 }
71
72 static int is_rfc2047_special(char ch)
73 {
74 return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_'));
75 }
76
77 static void add_rfc2047(struct strbuf *sb, const char *line, int len,
78 const char *encoding)
79 {
80 int i, last;
81
82 for (i = 0; i < len; i++) {
83 int ch = line[i];
84 if (non_ascii(ch))
85 goto needquote;
86 if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
87 goto needquote;
88 }
89 strbuf_add(sb, line, len);
90 return;
91
92 needquote:
93 strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
94 strbuf_addf(sb, "=?%s?q?", encoding);
95 for (i = last = 0; i < len; i++) {
96 unsigned ch = line[i] & 0xFF;
97 /*
98 * We encode ' ' using '=20' even though rfc2047
99 * allows using '_' for readability. Unfortunately,
100 * many programs do not understand this and just
101 * leave the underscore in place.
102 */
103 if (is_rfc2047_special(ch) || ch == ' ') {
104 strbuf_add(sb, line + last, i - last);
105 strbuf_addf(sb, "=%02X", ch);
106 last = i + 1;
107 }
108 }
109 strbuf_add(sb, line + last, len - last);
110 strbuf_addstr(sb, "?=");
111 }
112
113 static void add_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
114 const char *line, enum date_mode dmode,
115 const char *encoding)
116 {
117 char *date;
118 int namelen;
119 unsigned long time;
120 int tz;
121 const char *filler = " ";
122
123 if (fmt == CMIT_FMT_ONELINE)
124 return;
125 date = strchr(line, '>');
126 if (!date)
127 return;
128 namelen = ++date - line;
129 time = strtoul(date, &date, 10);
130 tz = strtol(date, NULL, 10);
131
132 if (fmt == CMIT_FMT_EMAIL) {
133 char *name_tail = strchr(line, '<');
134 int display_name_length;
135 if (!name_tail)
136 return;
137 while (line < name_tail && isspace(name_tail[-1]))
138 name_tail--;
139 display_name_length = name_tail - line;
140 filler = "";
141 strbuf_addstr(sb, "From: ");
142 add_rfc2047(sb, line, display_name_length, encoding);
143 strbuf_add(sb, name_tail, namelen - display_name_length);
144 strbuf_addch(sb, '\n');
145 } else {
146 strbuf_addf(sb, "%s: %.*s%.*s\n", what,
147 (fmt == CMIT_FMT_FULLER) ? 4 : 0,
148 filler, namelen, line);
149 }
150 switch (fmt) {
151 case CMIT_FMT_MEDIUM:
152 strbuf_addf(sb, "Date: %s\n", show_date(time, tz, dmode));
153 break;
154 case CMIT_FMT_EMAIL:
155 strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
156 break;
157 case CMIT_FMT_FULLER:
158 strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, dmode));
159 break;
160 default:
161 /* notin' */
162 break;
163 }
164 }
165
166 static int is_empty_line(const char *line, int *len_p)
167 {
168 int len = *len_p;
169 while (len && isspace(line[len-1]))
170 len--;
171 *len_p = len;
172 return !len;
173 }
174
175 static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
176 const struct commit *commit, int abbrev)
177 {
178 struct commit_list *parent = commit->parents;
179
180 if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
181 !parent || !parent->next)
182 return;
183
184 strbuf_addstr(sb, "Merge:");
185
186 while (parent) {
187 struct commit *p = parent->item;
188 const char *hex = NULL;
189 const char *dots;
190 if (abbrev)
191 hex = find_unique_abbrev(p->object.sha1, abbrev);
192 if (!hex)
193 hex = sha1_to_hex(p->object.sha1);
194 dots = (abbrev && strlen(hex) != 40) ? "..." : "";
195 parent = parent->next;
196
197 strbuf_addf(sb, " %s%s", hex, dots);
198 }
199 strbuf_addch(sb, '\n');
200 }
201
202 static char *get_header(const struct commit *commit, const char *key)
203 {
204 int key_len = strlen(key);
205 const char *line = commit->buffer;
206
207 for (;;) {
208 const char *eol = strchr(line, '\n'), *next;
209
210 if (line == eol)
211 return NULL;
212 if (!eol) {
213 eol = line + strlen(line);
214 next = NULL;
215 } else
216 next = eol + 1;
217 if (eol - line > key_len &&
218 !strncmp(line, key, key_len) &&
219 line[key_len] == ' ') {
220 return xmemdupz(line + key_len + 1, eol - line - key_len - 1);
221 }
222 line = next;
223 }
224 }
225
226 static char *replace_encoding_header(char *buf, const char *encoding)
227 {
228 struct strbuf tmp;
229 size_t start, len;
230 char *cp = buf;
231
232 /* guess if there is an encoding header before a \n\n */
233 while (strncmp(cp, "encoding ", strlen("encoding "))) {
234 cp = strchr(cp, '\n');
235 if (!cp || *++cp == '\n')
236 return buf;
237 }
238 start = cp - buf;
239 cp = strchr(cp, '\n');
240 if (!cp)
241 return buf; /* should not happen but be defensive */
242 len = cp + 1 - (buf + start);
243
244 strbuf_init(&tmp, 0);
245 strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1);
246 if (is_encoding_utf8(encoding)) {
247 /* we have re-coded to UTF-8; drop the header */
248 strbuf_remove(&tmp, start, len);
249 } else {
250 /* just replaces XXXX in 'encoding XXXX\n' */
251 strbuf_splice(&tmp, start + strlen("encoding "),
252 len - strlen("encoding \n"),
253 encoding, strlen(encoding));
254 }
255 return strbuf_detach(&tmp, NULL);
256 }
257
258 static char *logmsg_reencode(const struct commit *commit,
259 const char *output_encoding)
260 {
261 static const char *utf8 = "utf-8";
262 const char *use_encoding;
263 char *encoding;
264 char *out;
265
266 if (!*output_encoding)
267 return NULL;
268 encoding = get_header(commit, "encoding");
269 use_encoding = encoding ? encoding : utf8;
270 if (!strcmp(use_encoding, output_encoding))
271 if (encoding) /* we'll strip encoding header later */
272 out = xstrdup(commit->buffer);
273 else
274 return NULL; /* nothing to do */
275 else
276 out = reencode_string(commit->buffer,
277 output_encoding, use_encoding);
278 if (out)
279 out = replace_encoding_header(out, output_encoding);
280
281 free(encoding);
282 return out;
283 }
284
285 static size_t format_person_part(struct strbuf *sb, char part,
286 const char *msg, int len)
287 {
288 /* currently all placeholders have same length */
289 const int placeholder_len = 2;
290 int start, end, tz = 0;
291 unsigned long date = 0;
292 char *ep;
293
294 /* advance 'end' to point to email start delimiter */
295 for (end = 0; end < len && msg[end] != '<'; end++)
296 ; /* do nothing */
297
298 /*
299 * When end points at the '<' that we found, it should have
300 * matching '>' later, which means 'end' must be strictly
301 * below len - 1.
302 */
303 if (end >= len - 2)
304 goto skip;
305
306 if (part == 'n') { /* name */
307 while (end > 0 && isspace(msg[end - 1]))
308 end--;
309 strbuf_add(sb, msg, end);
310 return placeholder_len;
311 }
312 start = ++end; /* save email start position */
313
314 /* advance 'end' to point to email end delimiter */
315 for ( ; end < len && msg[end] != '>'; end++)
316 ; /* do nothing */
317
318 if (end >= len)
319 goto skip;
320
321 if (part == 'e') { /* email */
322 strbuf_add(sb, msg + start, end - start);
323 return placeholder_len;
324 }
325
326 /* advance 'start' to point to date start delimiter */
327 for (start = end + 1; start < len && isspace(msg[start]); start++)
328 ; /* do nothing */
329 if (start >= len)
330 goto skip;
331 date = strtoul(msg + start, &ep, 10);
332 if (msg + start == ep)
333 goto skip;
334
335 if (part == 't') { /* date, UNIX timestamp */
336 strbuf_add(sb, msg + start, ep - (msg + start));
337 return placeholder_len;
338 }
339
340 /* parse tz */
341 for (start = ep - msg + 1; start < len && isspace(msg[start]); start++)
342 ; /* do nothing */
343 if (start + 1 < len) {
344 tz = strtoul(msg + start + 1, NULL, 10);
345 if (msg[start] == '-')
346 tz = -tz;
347 }
348
349 switch (part) {
350 case 'd': /* date */
351 strbuf_addstr(sb, show_date(date, tz, DATE_NORMAL));
352 return placeholder_len;
353 case 'D': /* date, RFC2822 style */
354 strbuf_addstr(sb, show_date(date, tz, DATE_RFC2822));
355 return placeholder_len;
356 case 'r': /* date, relative */
357 strbuf_addstr(sb, show_date(date, tz, DATE_RELATIVE));
358 return placeholder_len;
359 case 'i': /* date, ISO 8601 */
360 strbuf_addstr(sb, show_date(date, tz, DATE_ISO8601));
361 return placeholder_len;
362 }
363
364 skip:
365 /*
366 * bogus commit, 'sb' cannot be updated, but we still need to
367 * compute a valid return value.
368 */
369 if (part == 'n' || part == 'e' || part == 't' || part == 'd'
370 || part == 'D' || part == 'r' || part == 'i')
371 return placeholder_len;
372
373 return 0; /* unknown placeholder */
374 }
375
376 struct chunk {
377 size_t off;
378 size_t len;
379 };
380
381 struct format_commit_context {
382 const struct commit *commit;
383
384 /* These offsets are relative to the start of the commit message. */
385 int commit_header_parsed;
386 struct chunk subject;
387 struct chunk author;
388 struct chunk committer;
389 struct chunk encoding;
390 size_t body_off;
391
392 /* The following ones are relative to the result struct strbuf. */
393 struct chunk abbrev_commit_hash;
394 struct chunk abbrev_tree_hash;
395 struct chunk abbrev_parent_hashes;
396 };
397
398 static int add_again(struct strbuf *sb, struct chunk *chunk)
399 {
400 if (chunk->len) {
401 strbuf_adddup(sb, chunk->off, chunk->len);
402 return 1;
403 }
404
405 /*
406 * We haven't seen this chunk before. Our caller is surely
407 * going to add it the hard way now. Remember the most likely
408 * start of the to-be-added chunk: the current end of the
409 * struct strbuf.
410 */
411 chunk->off = sb->len;
412 return 0;
413 }
414
415 static void parse_commit_header(struct format_commit_context *context)
416 {
417 const char *msg = context->commit->buffer;
418 int i;
419 enum { HEADER, SUBJECT, BODY } state;
420
421 for (i = 0, state = HEADER; msg[i] && state < BODY; i++) {
422 int eol;
423 for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
424 ; /* do nothing */
425
426 if (state == SUBJECT) {
427 context->subject.off = i;
428 context->subject.len = eol - i;
429 i = eol;
430 }
431 if (i == eol) {
432 state++;
433 /* strip empty lines */
434 while (msg[eol] == '\n' && msg[eol + 1] == '\n')
435 eol++;
436 } else if (!prefixcmp(msg + i, "author ")) {
437 context->author.off = i + 7;
438 context->author.len = eol - i - 7;
439 } else if (!prefixcmp(msg + i, "committer ")) {
440 context->committer.off = i + 10;
441 context->committer.len = eol - i - 10;
442 } else if (!prefixcmp(msg + i, "encoding ")) {
443 context->encoding.off = i + 9;
444 context->encoding.len = eol - i - 9;
445 }
446 i = eol;
447 if (!msg[i])
448 break;
449 }
450 context->body_off = i;
451 context->commit_header_parsed = 1;
452 }
453
454 static size_t format_commit_item(struct strbuf *sb, const char *placeholder,
455 void *context)
456 {
457 struct format_commit_context *c = context;
458 const struct commit *commit = c->commit;
459 const char *msg = commit->buffer;
460 struct commit_list *p;
461
462 /* these are independent of the commit */
463 switch (placeholder[0]) {
464 case 'C':
465 if (!prefixcmp(placeholder + 1, "red")) {
466 strbuf_addstr(sb, "\033[31m");
467 return 4;
468 } else if (!prefixcmp(placeholder + 1, "green")) {
469 strbuf_addstr(sb, "\033[32m");
470 return 6;
471 } else if (!prefixcmp(placeholder + 1, "blue")) {
472 strbuf_addstr(sb, "\033[34m");
473 return 5;
474 } else if (!prefixcmp(placeholder + 1, "reset")) {
475 strbuf_addstr(sb, "\033[m");
476 return 6;
477 } else
478 return 0;
479 case 'n': /* newline */
480 strbuf_addch(sb, '\n');
481 return 1;
482 }
483
484 /* these depend on the commit */
485 if (!commit->object.parsed)
486 parse_object(commit->object.sha1);
487
488 switch (placeholder[0]) {
489 case 'H': /* commit hash */
490 strbuf_addstr(sb, sha1_to_hex(commit->object.sha1));
491 return 1;
492 case 'h': /* abbreviated commit hash */
493 if (add_again(sb, &c->abbrev_commit_hash))
494 return 1;
495 strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1,
496 DEFAULT_ABBREV));
497 c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off;
498 return 1;
499 case 'T': /* tree hash */
500 strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1));
501 return 1;
502 case 't': /* abbreviated tree hash */
503 if (add_again(sb, &c->abbrev_tree_hash))
504 return 1;
505 strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1,
506 DEFAULT_ABBREV));
507 c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off;
508 return 1;
509 case 'P': /* parent hashes */
510 for (p = commit->parents; p; p = p->next) {
511 if (p != commit->parents)
512 strbuf_addch(sb, ' ');
513 strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1));
514 }
515 return 1;
516 case 'p': /* abbreviated parent hashes */
517 if (add_again(sb, &c->abbrev_parent_hashes))
518 return 1;
519 for (p = commit->parents; p; p = p->next) {
520 if (p != commit->parents)
521 strbuf_addch(sb, ' ');
522 strbuf_addstr(sb, find_unique_abbrev(
523 p->item->object.sha1, DEFAULT_ABBREV));
524 }
525 c->abbrev_parent_hashes.len = sb->len -
526 c->abbrev_parent_hashes.off;
527 return 1;
528 case 'm': /* left/right/bottom */
529 strbuf_addch(sb, (commit->object.flags & BOUNDARY)
530 ? '-'
531 : (commit->object.flags & SYMMETRIC_LEFT)
532 ? '<'
533 : '>');
534 return 1;
535 }
536
537 /* For the rest we have to parse the commit header. */
538 if (!c->commit_header_parsed)
539 parse_commit_header(c);
540
541 switch (placeholder[0]) {
542 case 's': /* subject */
543 strbuf_add(sb, msg + c->subject.off, c->subject.len);
544 return 1;
545 case 'a': /* author ... */
546 return format_person_part(sb, placeholder[1],
547 msg + c->author.off, c->author.len);
548 case 'c': /* committer ... */
549 return format_person_part(sb, placeholder[1],
550 msg + c->committer.off, c->committer.len);
551 case 'e': /* encoding */
552 strbuf_add(sb, msg + c->encoding.off, c->encoding.len);
553 return 1;
554 case 'b': /* body */
555 strbuf_addstr(sb, msg + c->body_off);
556 return 1;
557 }
558 return 0; /* unknown placeholder */
559 }
560
561 void format_commit_message(const struct commit *commit,
562 const void *format, struct strbuf *sb)
563 {
564 struct format_commit_context context;
565
566 memset(&context, 0, sizeof(context));
567 context.commit = commit;
568 strbuf_expand(sb, format, format_commit_item, &context);
569 }
570
571 static void pp_header(enum cmit_fmt fmt,
572 int abbrev,
573 enum date_mode dmode,
574 const char *encoding,
575 const struct commit *commit,
576 const char **msg_p,
577 struct strbuf *sb)
578 {
579 int parents_shown = 0;
580
581 for (;;) {
582 const char *line = *msg_p;
583 int linelen = get_one_line(*msg_p);
584
585 if (!linelen)
586 return;
587 *msg_p += linelen;
588
589 if (linelen == 1)
590 /* End of header */
591 return;
592
593 if (fmt == CMIT_FMT_RAW) {
594 strbuf_add(sb, line, linelen);
595 continue;
596 }
597
598 if (!memcmp(line, "parent ", 7)) {
599 if (linelen != 48)
600 die("bad parent line in commit");
601 continue;
602 }
603
604 if (!parents_shown) {
605 struct commit_list *parent;
606 int num;
607 for (parent = commit->parents, num = 0;
608 parent;
609 parent = parent->next, num++)
610 ;
611 /* with enough slop */
612 strbuf_grow(sb, num * 50 + 20);
613 add_merge_info(fmt, sb, commit, abbrev);
614 parents_shown = 1;
615 }
616
617 /*
618 * MEDIUM == DEFAULT shows only author with dates.
619 * FULL shows both authors but not dates.
620 * FULLER shows both authors and dates.
621 */
622 if (!memcmp(line, "author ", 7)) {
623 strbuf_grow(sb, linelen + 80);
624 add_user_info("Author", fmt, sb, line + 7, dmode, encoding);
625 }
626 if (!memcmp(line, "committer ", 10) &&
627 (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) {
628 strbuf_grow(sb, linelen + 80);
629 add_user_info("Commit", fmt, sb, line + 10, dmode, encoding);
630 }
631 }
632 }
633
634 static void pp_title_line(enum cmit_fmt fmt,
635 const char **msg_p,
636 struct strbuf *sb,
637 const char *subject,
638 const char *after_subject,
639 const char *encoding,
640 int plain_non_ascii)
641 {
642 struct strbuf title;
643
644 strbuf_init(&title, 80);
645
646 for (;;) {
647 const char *line = *msg_p;
648 int linelen = get_one_line(line);
649
650 *msg_p += linelen;
651 if (!linelen || is_empty_line(line, &linelen))
652 break;
653
654 strbuf_grow(&title, linelen + 2);
655 if (title.len) {
656 if (fmt == CMIT_FMT_EMAIL) {
657 strbuf_addch(&title, '\n');
658 }
659 strbuf_addch(&title, ' ');
660 }
661 strbuf_add(&title, line, linelen);
662 }
663
664 strbuf_grow(sb, title.len + 1024);
665 if (subject) {
666 strbuf_addstr(sb, subject);
667 add_rfc2047(sb, title.buf, title.len, encoding);
668 } else {
669 strbuf_addbuf(sb, &title);
670 }
671 strbuf_addch(sb, '\n');
672
673 if (plain_non_ascii) {
674 const char *header_fmt =
675 "MIME-Version: 1.0\n"
676 "Content-Type: text/plain; charset=%s\n"
677 "Content-Transfer-Encoding: 8bit\n";
678 strbuf_addf(sb, header_fmt, encoding);
679 }
680 if (after_subject) {
681 strbuf_addstr(sb, after_subject);
682 }
683 if (fmt == CMIT_FMT_EMAIL) {
684 strbuf_addch(sb, '\n');
685 }
686 strbuf_release(&title);
687 }
688
689 static void pp_remainder(enum cmit_fmt fmt,
690 const char **msg_p,
691 struct strbuf *sb,
692 int indent)
693 {
694 int first = 1;
695 for (;;) {
696 const char *line = *msg_p;
697 int linelen = get_one_line(line);
698 *msg_p += linelen;
699
700 if (!linelen)
701 break;
702
703 if (is_empty_line(line, &linelen)) {
704 if (first)
705 continue;
706 if (fmt == CMIT_FMT_SHORT)
707 break;
708 }
709 first = 0;
710
711 strbuf_grow(sb, linelen + indent + 20);
712 if (indent) {
713 memset(sb->buf + sb->len, ' ', indent);
714 strbuf_setlen(sb, sb->len + indent);
715 }
716 strbuf_add(sb, line, linelen);
717 strbuf_addch(sb, '\n');
718 }
719 }
720
721 void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
722 struct strbuf *sb, int abbrev,
723 const char *subject, const char *after_subject,
724 enum date_mode dmode, int plain_non_ascii)
725 {
726 unsigned long beginning_of_body;
727 int indent = 4;
728 const char *msg = commit->buffer;
729 char *reencoded;
730 const char *encoding;
731
732 if (fmt == CMIT_FMT_USERFORMAT) {
733 format_commit_message(commit, user_format, sb);
734 return;
735 }
736
737 encoding = (git_log_output_encoding
738 ? git_log_output_encoding
739 : git_commit_encoding);
740 if (!encoding)
741 encoding = "utf-8";
742 reencoded = logmsg_reencode(commit, encoding);
743 if (reencoded) {
744 msg = reencoded;
745 }
746
747 if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
748 indent = 0;
749
750 /* After-subject is used to pass in Content-Type: multipart
751 * MIME header; in that case we do not have to do the
752 * plaintext content type even if the commit message has
753 * non 7-bit ASCII character. Otherwise, check if we need
754 * to say this is not a 7-bit ASCII.
755 */
756 if (fmt == CMIT_FMT_EMAIL && !after_subject) {
757 int i, ch, in_body;
758
759 for (in_body = i = 0; (ch = msg[i]); i++) {
760 if (!in_body) {
761 /* author could be non 7-bit ASCII but
762 * the log may be so; skip over the
763 * header part first.
764 */
765 if (ch == '\n' && msg[i+1] == '\n')
766 in_body = 1;
767 }
768 else if (non_ascii(ch)) {
769 plain_non_ascii = 1;
770 break;
771 }
772 }
773 }
774
775 pp_header(fmt, abbrev, dmode, encoding, commit, &msg, sb);
776 if (fmt != CMIT_FMT_ONELINE && !subject) {
777 strbuf_addch(sb, '\n');
778 }
779
780 /* Skip excess blank lines at the beginning of body, if any... */
781 for (;;) {
782 int linelen = get_one_line(msg);
783 int ll = linelen;
784 if (!linelen)
785 break;
786 if (!is_empty_line(msg, &ll))
787 break;
788 msg += linelen;
789 }
790
791 /* These formats treat the title line specially. */
792 if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
793 pp_title_line(fmt, &msg, sb, subject,
794 after_subject, encoding, plain_non_ascii);
795
796 beginning_of_body = sb->len;
797 if (fmt != CMIT_FMT_ONELINE)
798 pp_remainder(fmt, &msg, sb, indent);
799 strbuf_rtrim(sb);
800
801 /* Make sure there is an EOLN for the non-oneline case */
802 if (fmt != CMIT_FMT_ONELINE)
803 strbuf_addch(sb, '\n');
804
805 /*
806 * The caller may append additional body text in e-mail
807 * format. Make sure we did not strip the blank line
808 * between the header and the body.
809 */
810 if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
811 strbuf_addch(sb, '\n');
812 free(reencoded);
813 }
git-p4