6 #include "string-list.h"
9 static char *user_format;
11 void get_commit_format(const char *arg, struct rev_info *rev)
14 static struct cmt_fmt_map {
19 { "raw", 1, CMIT_FMT_RAW },
20 { "medium", 1, CMIT_FMT_MEDIUM },
21 { "short", 1, CMIT_FMT_SHORT },
22 { "email", 1, CMIT_FMT_EMAIL },
23 { "full", 5, CMIT_FMT_FULL },
24 { "fuller", 5, CMIT_FMT_FULLER },
25 { "oneline", 1, CMIT_FMT_ONELINE },
28 rev->use_terminator = 0;
30 rev->commit_format = CMIT_FMT_DEFAULT;
33 if (!prefixcmp(arg, "format:") || !prefixcmp(arg, "tformat:")) {
34 const char *cp = strchr(arg, ':') + 1;
36 user_format = xstrdup(cp);
38 rev->use_terminator = 1;
39 rev->commit_format = CMIT_FMT_USERFORMAT;
42 for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
43 if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) &&
44 !strncmp(arg, cmt_fmts[i].n, strlen(arg))) {
45 if (cmt_fmts[i].v == CMIT_FMT_ONELINE)
46 rev->use_terminator = 1;
47 rev->commit_format = cmt_fmts[i].v;
52 die("invalid --pretty format: %s", arg);
56 * Generic support for pretty-printing the header
58 static int get_one_line(const char *msg)
73 /* High bit set, or ISO-2022-INT */
77 return ((ch & 0x80) || (ch == 0x1b));
80 static int is_rfc2047_special(char ch)
82 return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_'));
85 static void add_rfc2047(struct strbuf *sb, const char *line, int len,
90 for (i = 0; i < len; i++) {
94 if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
97 strbuf_add(sb, line, len);
101 strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
102 strbuf_addf(sb, "=?%s?q?", encoding);
103 for (i = last = 0; i < len; i++) {
104 unsigned ch = line[i] & 0xFF;
106 * We encode ' ' using '=20' even though rfc2047
107 * allows using '_' for readability. Unfortunately,
108 * many programs do not understand this and just
109 * leave the underscore in place.
111 if (is_rfc2047_special(ch) || ch == ' ') {
112 strbuf_add(sb, line + last, i - last);
113 strbuf_addf(sb, "=%02X", ch);
117 strbuf_add(sb, line + last, len - last);
118 strbuf_addstr(sb, "?=");
121 void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
122 const char *line, enum date_mode dmode,
123 const char *encoding)
129 const char *filler = " ";
131 if (fmt == CMIT_FMT_ONELINE)
133 date = strchr(line, '>');
136 namelen = ++date - line;
137 time = strtoul(date, &date, 10);
138 tz = strtol(date, NULL, 10);
140 if (fmt == CMIT_FMT_EMAIL) {
141 char *name_tail = strchr(line, '<');
142 int display_name_length;
145 while (line < name_tail && isspace(name_tail[-1]))
147 display_name_length = name_tail - line;
149 strbuf_addstr(sb, "From: ");
150 add_rfc2047(sb, line, display_name_length, encoding);
151 strbuf_add(sb, name_tail, namelen - display_name_length);
152 strbuf_addch(sb, '\n');
154 strbuf_addf(sb, "%s: %.*s%.*s\n", what,
155 (fmt == CMIT_FMT_FULLER) ? 4 : 0,
156 filler, namelen, line);
159 case CMIT_FMT_MEDIUM:
160 strbuf_addf(sb, "Date: %s\n", show_date(time, tz, dmode));
163 strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
165 case CMIT_FMT_FULLER:
166 strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, dmode));
174 static int is_empty_line(const char *line, int *len_p)
177 while (len && isspace(line[len-1]))
183 static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
184 const struct commit *commit, int abbrev)
186 struct commit_list *parent = commit->parents;
188 if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
189 !parent || !parent->next)
192 strbuf_addstr(sb, "Merge:");
195 struct commit *p = parent->item;
196 const char *hex = NULL;
199 hex = find_unique_abbrev(p->object.sha1, abbrev);
201 hex = sha1_to_hex(p->object.sha1);
202 dots = (abbrev && strlen(hex) != 40) ? "..." : "";
203 parent = parent->next;
205 strbuf_addf(sb, " %s%s", hex, dots);
207 strbuf_addch(sb, '\n');
210 static char *get_header(const struct commit *commit, const char *key)
212 int key_len = strlen(key);
213 const char *line = commit->buffer;
216 const char *eol = strchr(line, '\n'), *next;
221 eol = line + strlen(line);
225 if (eol - line > key_len &&
226 !strncmp(line, key, key_len) &&
227 line[key_len] == ' ') {
228 return xmemdupz(line + key_len + 1, eol - line - key_len - 1);
234 static char *replace_encoding_header(char *buf, const char *encoding)
240 /* guess if there is an encoding header before a \n\n */
241 while (strncmp(cp, "encoding ", strlen("encoding "))) {
242 cp = strchr(cp, '\n');
243 if (!cp || *++cp == '\n')
247 cp = strchr(cp, '\n');
249 return buf; /* should not happen but be defensive */
250 len = cp + 1 - (buf + start);
252 strbuf_init(&tmp, 0);
253 strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1);
254 if (is_encoding_utf8(encoding)) {
255 /* we have re-coded to UTF-8; drop the header */
256 strbuf_remove(&tmp, start, len);
258 /* just replaces XXXX in 'encoding XXXX\n' */
259 strbuf_splice(&tmp, start + strlen("encoding "),
260 len - strlen("encoding \n"),
261 encoding, strlen(encoding));
263 return strbuf_detach(&tmp, NULL);
266 static char *logmsg_reencode(const struct commit *commit,
267 const char *output_encoding)
269 static const char *utf8 = "utf-8";
270 const char *use_encoding;
274 if (!*output_encoding)
276 encoding = get_header(commit, "encoding");
277 use_encoding = encoding ? encoding : utf8;
278 if (!strcmp(use_encoding, output_encoding))
279 if (encoding) /* we'll strip encoding header later */
280 out = xstrdup(commit->buffer);
282 return NULL; /* nothing to do */
284 out = reencode_string(commit->buffer,
285 output_encoding, use_encoding);
287 out = replace_encoding_header(out, output_encoding);
293 static int mailmap_name(struct strbuf *sb, const char *email)
295 static struct string_list *mail_map;
299 mail_map = xcalloc(1, sizeof(*mail_map));
300 read_mailmap(mail_map, ".mailmap", NULL);
306 if (!map_email(mail_map, email, buffer, sizeof(buffer)))
308 strbuf_addstr(sb, buffer);
312 static size_t format_person_part(struct strbuf *sb, char part,
313 const char *msg, int len)
315 /* currently all placeholders have same length */
316 const int placeholder_len = 2;
317 int start, end, tz = 0;
318 unsigned long date = 0;
321 /* advance 'end' to point to email start delimiter */
322 for (end = 0; end < len && msg[end] != '<'; end++)
326 * When end points at the '<' that we found, it should have
327 * matching '>' later, which means 'end' must be strictly
333 if (part == 'n' || part == 'N') { /* name */
334 while (end > 0 && isspace(msg[end - 1]))
336 if (part != 'N' || !msg[end] || !msg[end + 1] ||
337 mailmap_name(sb, msg + end + 2) < 0)
338 strbuf_add(sb, msg, end);
339 return placeholder_len;
341 start = ++end; /* save email start position */
343 /* advance 'end' to point to email end delimiter */
344 for ( ; end < len && msg[end] != '>'; end++)
350 if (part == 'e') { /* email */
351 strbuf_add(sb, msg + start, end - start);
352 return placeholder_len;
355 /* advance 'start' to point to date start delimiter */
356 for (start = end + 1; start < len && isspace(msg[start]); start++)
360 date = strtoul(msg + start, &ep, 10);
361 if (msg + start == ep)
364 if (part == 't') { /* date, UNIX timestamp */
365 strbuf_add(sb, msg + start, ep - (msg + start));
366 return placeholder_len;
370 for (start = ep - msg + 1; start < len && isspace(msg[start]); start++)
372 if (start + 1 < len) {
373 tz = strtoul(msg + start + 1, NULL, 10);
374 if (msg[start] == '-')
380 strbuf_addstr(sb, show_date(date, tz, DATE_NORMAL));
381 return placeholder_len;
382 case 'D': /* date, RFC2822 style */
383 strbuf_addstr(sb, show_date(date, tz, DATE_RFC2822));
384 return placeholder_len;
385 case 'r': /* date, relative */
386 strbuf_addstr(sb, show_date(date, tz, DATE_RELATIVE));
387 return placeholder_len;
388 case 'i': /* date, ISO 8601 */
389 strbuf_addstr(sb, show_date(date, tz, DATE_ISO8601));
390 return placeholder_len;
395 * bogus commit, 'sb' cannot be updated, but we still need to
396 * compute a valid return value.
398 if (part == 'n' || part == 'e' || part == 't' || part == 'd'
399 || part == 'D' || part == 'r' || part == 'i')
400 return placeholder_len;
402 return 0; /* unknown placeholder */
410 struct format_commit_context {
411 const struct commit *commit;
413 /* These offsets are relative to the start of the commit message. */
414 int commit_header_parsed;
415 struct chunk subject;
417 struct chunk committer;
418 struct chunk encoding;
421 /* The following ones are relative to the result struct strbuf. */
422 struct chunk abbrev_commit_hash;
423 struct chunk abbrev_tree_hash;
424 struct chunk abbrev_parent_hashes;
427 static int add_again(struct strbuf *sb, struct chunk *chunk)
430 strbuf_adddup(sb, chunk->off, chunk->len);
435 * We haven't seen this chunk before. Our caller is surely
436 * going to add it the hard way now. Remember the most likely
437 * start of the to-be-added chunk: the current end of the
440 chunk->off = sb->len;
444 static void parse_commit_header(struct format_commit_context *context)
446 const char *msg = context->commit->buffer;
448 enum { HEADER, SUBJECT, BODY } state;
450 for (i = 0, state = HEADER; msg[i] && state < BODY; i++) {
452 for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
455 if (state == SUBJECT) {
456 context->subject.off = i;
457 context->subject.len = eol - i;
462 /* strip empty lines */
463 while (msg[eol] == '\n' && msg[eol + 1] == '\n')
465 } else if (!prefixcmp(msg + i, "author ")) {
466 context->author.off = i + 7;
467 context->author.len = eol - i - 7;
468 } else if (!prefixcmp(msg + i, "committer ")) {
469 context->committer.off = i + 10;
470 context->committer.len = eol - i - 10;
471 } else if (!prefixcmp(msg + i, "encoding ")) {
472 context->encoding.off = i + 9;
473 context->encoding.len = eol - i - 9;
479 context->body_off = i;
480 context->commit_header_parsed = 1;
483 static size_t format_commit_item(struct strbuf *sb, const char *placeholder,
486 struct format_commit_context *c = context;
487 const struct commit *commit = c->commit;
488 const char *msg = commit->buffer;
489 struct commit_list *p;
492 /* these are independent of the commit */
493 switch (placeholder[0]) {
495 if (!prefixcmp(placeholder + 1, "red")) {
496 strbuf_addstr(sb, "\033[31m");
498 } else if (!prefixcmp(placeholder + 1, "green")) {
499 strbuf_addstr(sb, "\033[32m");
501 } else if (!prefixcmp(placeholder + 1, "blue")) {
502 strbuf_addstr(sb, "\033[34m");
504 } else if (!prefixcmp(placeholder + 1, "reset")) {
505 strbuf_addstr(sb, "\033[m");
509 case 'n': /* newline */
510 strbuf_addch(sb, '\n');
513 /* %x00 == NUL, %x0a == LF, etc. */
514 if (0 <= (h1 = hexval_table[0xff & placeholder[1]]) &&
516 0 <= (h2 = hexval_table[0xff & placeholder[2]]) &&
518 strbuf_addch(sb, (h1<<4)|h2);
524 /* these depend on the commit */
525 if (!commit->object.parsed)
526 parse_object(commit->object.sha1);
528 switch (placeholder[0]) {
529 case 'H': /* commit hash */
530 strbuf_addstr(sb, sha1_to_hex(commit->object.sha1));
532 case 'h': /* abbreviated commit hash */
533 if (add_again(sb, &c->abbrev_commit_hash))
535 strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1,
537 c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off;
539 case 'T': /* tree hash */
540 strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1));
542 case 't': /* abbreviated tree hash */
543 if (add_again(sb, &c->abbrev_tree_hash))
545 strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1,
547 c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off;
549 case 'P': /* parent hashes */
550 for (p = commit->parents; p; p = p->next) {
551 if (p != commit->parents)
552 strbuf_addch(sb, ' ');
553 strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1));
556 case 'p': /* abbreviated parent hashes */
557 if (add_again(sb, &c->abbrev_parent_hashes))
559 for (p = commit->parents; p; p = p->next) {
560 if (p != commit->parents)
561 strbuf_addch(sb, ' ');
562 strbuf_addstr(sb, find_unique_abbrev(
563 p->item->object.sha1, DEFAULT_ABBREV));
565 c->abbrev_parent_hashes.len = sb->len -
566 c->abbrev_parent_hashes.off;
568 case 'm': /* left/right/bottom */
569 strbuf_addch(sb, (commit->object.flags & BOUNDARY)
571 : (commit->object.flags & SYMMETRIC_LEFT)
577 /* For the rest we have to parse the commit header. */
578 if (!c->commit_header_parsed)
579 parse_commit_header(c);
581 switch (placeholder[0]) {
582 case 's': /* subject */
583 strbuf_add(sb, msg + c->subject.off, c->subject.len);
585 case 'a': /* author ... */
586 return format_person_part(sb, placeholder[1],
587 msg + c->author.off, c->author.len);
588 case 'c': /* committer ... */
589 return format_person_part(sb, placeholder[1],
590 msg + c->committer.off, c->committer.len);
591 case 'e': /* encoding */
592 strbuf_add(sb, msg + c->encoding.off, c->encoding.len);
595 strbuf_addstr(sb, msg + c->body_off);
598 return 0; /* unknown placeholder */
601 void format_commit_message(const struct commit *commit,
602 const void *format, struct strbuf *sb)
604 struct format_commit_context context;
606 memset(&context, 0, sizeof(context));
607 context.commit = commit;
608 strbuf_expand(sb, format, format_commit_item, &context);
611 static void pp_header(enum cmit_fmt fmt,
613 enum date_mode dmode,
614 const char *encoding,
615 const struct commit *commit,
619 int parents_shown = 0;
622 const char *line = *msg_p;
623 int linelen = get_one_line(*msg_p);
633 if (fmt == CMIT_FMT_RAW) {
634 strbuf_add(sb, line, linelen);
638 if (!memcmp(line, "parent ", 7)) {
640 die("bad parent line in commit");
644 if (!parents_shown) {
645 struct commit_list *parent;
647 for (parent = commit->parents, num = 0;
649 parent = parent->next, num++)
651 /* with enough slop */
652 strbuf_grow(sb, num * 50 + 20);
653 add_merge_info(fmt, sb, commit, abbrev);
658 * MEDIUM == DEFAULT shows only author with dates.
659 * FULL shows both authors but not dates.
660 * FULLER shows both authors and dates.
662 if (!memcmp(line, "author ", 7)) {
663 strbuf_grow(sb, linelen + 80);
664 pp_user_info("Author", fmt, sb, line + 7, dmode, encoding);
666 if (!memcmp(line, "committer ", 10) &&
667 (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) {
668 strbuf_grow(sb, linelen + 80);
669 pp_user_info("Commit", fmt, sb, line + 10, dmode, encoding);
674 void pp_title_line(enum cmit_fmt fmt,
678 const char *after_subject,
679 const char *encoding,
684 strbuf_init(&title, 80);
687 const char *line = *msg_p;
688 int linelen = get_one_line(line);
691 if (!linelen || is_empty_line(line, &linelen))
694 strbuf_grow(&title, linelen + 2);
696 if (fmt == CMIT_FMT_EMAIL) {
697 strbuf_addch(&title, '\n');
699 strbuf_addch(&title, ' ');
701 strbuf_add(&title, line, linelen);
704 strbuf_grow(sb, title.len + 1024);
706 strbuf_addstr(sb, subject);
707 add_rfc2047(sb, title.buf, title.len, encoding);
709 strbuf_addbuf(sb, &title);
711 strbuf_addch(sb, '\n');
713 if (need_8bit_cte > 0) {
714 const char *header_fmt =
715 "MIME-Version: 1.0\n"
716 "Content-Type: text/plain; charset=%s\n"
717 "Content-Transfer-Encoding: 8bit\n";
718 strbuf_addf(sb, header_fmt, encoding);
721 strbuf_addstr(sb, after_subject);
723 if (fmt == CMIT_FMT_EMAIL) {
724 strbuf_addch(sb, '\n');
726 strbuf_release(&title);
729 void pp_remainder(enum cmit_fmt fmt,
736 const char *line = *msg_p;
737 int linelen = get_one_line(line);
743 if (is_empty_line(line, &linelen)) {
746 if (fmt == CMIT_FMT_SHORT)
751 strbuf_grow(sb, linelen + indent + 20);
753 memset(sb->buf + sb->len, ' ', indent);
754 strbuf_setlen(sb, sb->len + indent);
756 strbuf_add(sb, line, linelen);
757 strbuf_addch(sb, '\n');
761 void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
762 struct strbuf *sb, int abbrev,
763 const char *subject, const char *after_subject,
764 enum date_mode dmode, int need_8bit_cte)
766 unsigned long beginning_of_body;
768 const char *msg = commit->buffer;
770 const char *encoding;
772 if (fmt == CMIT_FMT_USERFORMAT) {
773 format_commit_message(commit, user_format, sb);
777 encoding = (git_log_output_encoding
778 ? git_log_output_encoding
779 : git_commit_encoding);
782 reencoded = logmsg_reencode(commit, encoding);
787 if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
791 * We need to check and emit Content-type: to mark it
792 * as 8-bit if we haven't done so.
794 if (fmt == CMIT_FMT_EMAIL && need_8bit_cte == 0) {
797 for (in_body = i = 0; (ch = msg[i]); i++) {
799 /* author could be non 7-bit ASCII but
800 * the log may be so; skip over the
803 if (ch == '\n' && msg[i+1] == '\n')
806 else if (non_ascii(ch)) {
813 pp_header(fmt, abbrev, dmode, encoding, commit, &msg, sb);
814 if (fmt != CMIT_FMT_ONELINE && !subject) {
815 strbuf_addch(sb, '\n');
818 /* Skip excess blank lines at the beginning of body, if any... */
820 int linelen = get_one_line(msg);
824 if (!is_empty_line(msg, &ll))
829 /* These formats treat the title line specially. */
830 if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
831 pp_title_line(fmt, &msg, sb, subject,
832 after_subject, encoding, need_8bit_cte);
834 beginning_of_body = sb->len;
835 if (fmt != CMIT_FMT_ONELINE)
836 pp_remainder(fmt, &msg, sb, indent);
839 /* Make sure there is an EOLN for the non-oneline case */
840 if (fmt != CMIT_FMT_ONELINE)
841 strbuf_addch(sb, '\n');
844 * The caller may append additional body text in e-mail
845 * format. Make sure we did not strip the blank line
846 * between the header and the body.
848 if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
849 strbuf_addch(sb, '\n');