6 #include "string-list.h"
11 #include "reflog-walk.h"
12 #include "gpg-interface.h"
14 static char *user_format;
15 static struct cmt_fmt_map {
20 const char *user_format;
22 static size_t builtin_formats_len;
23 static size_t commit_formats_len;
24 static size_t commit_formats_alloc;
25 static struct cmt_fmt_map *find_commit_format(const char *sought);
27 int commit_format_is_empty(enum cmit_fmt fmt)
29 return fmt == CMIT_FMT_USERFORMAT && !*user_format;
32 static void save_user_format(struct rev_info *rev, const char *cp, int is_tformat)
35 user_format = xstrdup(cp);
37 rev->use_terminator = 1;
38 rev->commit_format = CMIT_FMT_USERFORMAT;
41 static int git_pretty_formats_config(const char *var, const char *value, void *cb)
43 struct cmt_fmt_map *commit_format = NULL;
48 if (!skip_prefix(var, "pretty.", &name))
51 for (i = 0; i < builtin_formats_len; i++) {
52 if (!strcmp(commit_formats[i].name, name))
56 for (i = builtin_formats_len; i < commit_formats_len; i++) {
57 if (!strcmp(commit_formats[i].name, name)) {
58 commit_format = &commit_formats[i];
64 ALLOC_GROW(commit_formats, commit_formats_len+1,
65 commit_formats_alloc);
66 commit_format = &commit_formats[commit_formats_len];
67 memset(commit_format, 0, sizeof(*commit_format));
71 commit_format->name = xstrdup(name);
72 commit_format->format = CMIT_FMT_USERFORMAT;
73 if (git_config_string(&fmt, var, value))
76 if (skip_prefix(fmt, "format:", &fmt))
77 commit_format->is_tformat = 0;
78 else if (skip_prefix(fmt, "tformat:", &fmt) || strchr(fmt, '%'))
79 commit_format->is_tformat = 1;
81 commit_format->is_alias = 1;
82 commit_format->user_format = fmt;
87 static void setup_commit_formats(void)
89 struct cmt_fmt_map builtin_formats[] = {
90 { "raw", CMIT_FMT_RAW, 0 },
91 { "medium", CMIT_FMT_MEDIUM, 0 },
92 { "short", CMIT_FMT_SHORT, 0 },
93 { "email", CMIT_FMT_EMAIL, 0 },
94 { "fuller", CMIT_FMT_FULLER, 0 },
95 { "full", CMIT_FMT_FULL, 0 },
96 { "oneline", CMIT_FMT_ONELINE, 1 }
98 commit_formats_len = ARRAY_SIZE(builtin_formats);
99 builtin_formats_len = commit_formats_len;
100 ALLOC_GROW(commit_formats, commit_formats_len, commit_formats_alloc);
101 memcpy(commit_formats, builtin_formats,
102 sizeof(*builtin_formats)*ARRAY_SIZE(builtin_formats));
104 git_config(git_pretty_formats_config, NULL);
107 static struct cmt_fmt_map *find_commit_format_recursive(const char *sought,
108 const char *original,
109 int num_redirections)
111 struct cmt_fmt_map *found = NULL;
112 size_t found_match_len = 0;
115 if (num_redirections >= commit_formats_len)
116 die("invalid --pretty format: "
117 "'%s' references an alias which points to itself",
120 for (i = 0; i < commit_formats_len; i++) {
123 if (!starts_with(commit_formats[i].name, sought))
126 match_len = strlen(commit_formats[i].name);
127 if (found == NULL || found_match_len > match_len) {
128 found = &commit_formats[i];
129 found_match_len = match_len;
133 if (found && found->is_alias) {
134 found = find_commit_format_recursive(found->user_format,
142 static struct cmt_fmt_map *find_commit_format(const char *sought)
145 setup_commit_formats();
147 return find_commit_format_recursive(sought, sought, 0);
150 void get_commit_format(const char *arg, struct rev_info *rev)
152 struct cmt_fmt_map *commit_format;
154 rev->use_terminator = 0;
156 rev->commit_format = CMIT_FMT_DEFAULT;
159 if (skip_prefix(arg, "format:", &arg)) {
160 save_user_format(rev, arg, 0);
164 if (!*arg || skip_prefix(arg, "tformat:", &arg) || strchr(arg, '%')) {
165 save_user_format(rev, arg, 1);
169 commit_format = find_commit_format(arg);
171 die("invalid --pretty format: %s", arg);
173 rev->commit_format = commit_format->format;
174 rev->use_terminator = commit_format->is_tformat;
175 if (commit_format->format == CMIT_FMT_USERFORMAT) {
176 save_user_format(rev, commit_format->user_format,
177 commit_format->is_tformat);
182 * Generic support for pretty-printing the header
184 static int get_one_line(const char *msg)
199 /* High bit set, or ISO-2022-INT */
200 static int non_ascii(int ch)
202 return !isascii(ch) || ch == '\033';
205 int has_non_ascii(const char *s)
210 while ((ch = *s++) != '\0') {
217 static int is_rfc822_special(char ch)
239 static int needs_rfc822_quoting(const char *s, int len)
242 for (i = 0; i < len; i++)
243 if (is_rfc822_special(s[i]))
248 static int last_line_length(struct strbuf *sb)
252 /* How many bytes are already used on the last line? */
253 for (i = sb->len - 1; i >= 0; i--)
254 if (sb->buf[i] == '\n')
256 return sb->len - (i + 1);
259 static void add_rfc822_quoted(struct strbuf *out, const char *s, int len)
263 /* just a guess, we may have to also backslash-quote */
264 strbuf_grow(out, len + 2);
266 strbuf_addch(out, '"');
267 for (i = 0; i < len; i++) {
271 strbuf_addch(out, '\\');
274 strbuf_addch(out, s[i]);
277 strbuf_addch(out, '"');
285 static int is_rfc2047_special(char ch, enum rfc2047_type type)
288 * rfc2047, section 4.2:
290 * 8-bit values which correspond to printable ASCII characters other
291 * than "=", "?", and "_" (underscore), MAY be represented as those
292 * characters. (But see section 5 for restrictions.) In
293 * particular, SPACE and TAB MUST NOT be represented as themselves
294 * within encoded words.
298 * rule out non-ASCII characters and non-printable characters (the
299 * non-ASCII check should be redundant as isprint() is not localized
300 * and only knows about ASCII, but be defensive about that)
302 if (non_ascii(ch) || !isprint(ch))
306 * rule out special printable characters (' ' should be the only
307 * whitespace character considered printable, but be defensive and use
310 if (isspace(ch) || ch == '=' || ch == '?' || ch == '_')
314 * rfc2047, section 5.3:
316 * As a replacement for a 'word' entity within a 'phrase', for example,
317 * one that precedes an address in a From, To, or Cc header. The ABNF
318 * definition for 'phrase' from RFC 822 thus becomes:
320 * phrase = 1*( encoded-word / word )
322 * In this case the set of characters that may be used in a "Q"-encoded
323 * 'encoded-word' is restricted to: <upper and lower case ASCII
324 * letters, decimal digits, "!", "*", "+", "-", "/", "=", and "_"
325 * (underscore, ASCII 95.)>. An 'encoded-word' that appears within a
326 * 'phrase' MUST be separated from any adjacent 'word', 'text' or
327 * 'special' by 'linear-white-space'.
330 if (type != RFC2047_ADDRESS)
333 /* '=' and '_' are special cases and have been checked above */
334 return !(isalnum(ch) || ch == '!' || ch == '*' || ch == '+' || ch == '-' || ch == '/');
337 static int needs_rfc2047_encoding(const char *line, int len,
338 enum rfc2047_type type)
342 for (i = 0; i < len; i++) {
344 if (non_ascii(ch) || ch == '\n')
346 if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
353 static void add_rfc2047(struct strbuf *sb, const char *line, size_t len,
354 const char *encoding, enum rfc2047_type type)
356 static const int max_encoded_length = 76; /* per rfc2047 */
358 int line_len = last_line_length(sb);
360 strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
361 strbuf_addf(sb, "=?%s?q?", encoding);
362 line_len += strlen(encoding) + 5; /* 5 for =??q? */
366 * RFC 2047, section 5 (3):
368 * Each 'encoded-word' MUST represent an integral number of
369 * characters. A multi-octet character may not be split across
370 * adjacent 'encoded- word's.
372 const unsigned char *p = (const unsigned char *)line;
373 int chrlen = mbs_chrlen(&line, &len, encoding);
374 int is_special = (chrlen > 1) || is_rfc2047_special(*p, type);
376 /* "=%02X" * chrlen, or the byte itself */
377 const char *encoded_fmt = is_special ? "=%02X" : "%c";
378 int encoded_len = is_special ? 3 * chrlen : 1;
381 * According to RFC 2047, we could encode the special character
382 * ' ' (space) with '_' (underscore) for readability. But many
383 * programs do not understand this and just leave the
384 * underscore in place. Thus, we do nothing special here, which
385 * causes ' ' to be encoded as '=20', avoiding this problem.
388 if (line_len + encoded_len + 2 > max_encoded_length) {
389 /* It won't fit with trailing "?=" --- break the line */
390 strbuf_addf(sb, "?=\n =?%s?q?", encoding);
391 line_len = strlen(encoding) + 5 + 1; /* =??q? plus SP */
394 for (i = 0; i < chrlen; i++)
395 strbuf_addf(sb, encoded_fmt, p[i]);
396 line_len += encoded_len;
398 strbuf_addstr(sb, "?=");
401 const char *show_ident_date(const struct ident_split *ident,
404 unsigned long date = 0;
407 if (ident->date_begin && ident->date_end)
408 date = strtoul(ident->date_begin, NULL, 10);
409 if (date_overflows(date))
412 if (ident->tz_begin && ident->tz_end)
413 tz = strtol(ident->tz_begin, NULL, 10);
414 if (tz >= INT_MAX || tz <= INT_MIN)
417 return show_date(date, tz, mode);
420 void pp_user_info(struct pretty_print_context *pp,
421 const char *what, struct strbuf *sb,
422 const char *line, const char *encoding)
424 struct ident_split ident;
426 const char *mailbuf, *namebuf;
427 size_t namelen, maillen;
428 int max_length = 78; /* per rfc2822 */
430 if (pp->fmt == CMIT_FMT_ONELINE)
433 line_end = strchrnul(line, '\n');
434 if (split_ident_line(&ident, line, line_end - line))
437 mailbuf = ident.mail_begin;
438 maillen = ident.mail_end - ident.mail_begin;
439 namebuf = ident.name_begin;
440 namelen = ident.name_end - ident.name_begin;
443 map_user(pp->mailmap, &mailbuf, &maillen, &namebuf, &namelen);
445 if (pp->fmt == CMIT_FMT_EMAIL) {
446 if (pp->from_ident && ident_cmp(pp->from_ident, &ident)) {
447 struct strbuf buf = STRBUF_INIT;
449 strbuf_addstr(&buf, "From: ");
450 strbuf_add(&buf, namebuf, namelen);
451 strbuf_addstr(&buf, " <");
452 strbuf_add(&buf, mailbuf, maillen);
453 strbuf_addstr(&buf, ">\n");
454 string_list_append(&pp->in_body_headers,
455 strbuf_detach(&buf, NULL));
457 mailbuf = pp->from_ident->mail_begin;
458 maillen = pp->from_ident->mail_end - mailbuf;
459 namebuf = pp->from_ident->name_begin;
460 namelen = pp->from_ident->name_end - namebuf;
463 strbuf_addstr(sb, "From: ");
464 if (needs_rfc2047_encoding(namebuf, namelen, RFC2047_ADDRESS)) {
465 add_rfc2047(sb, namebuf, namelen,
466 encoding, RFC2047_ADDRESS);
467 max_length = 76; /* per rfc2047 */
468 } else if (needs_rfc822_quoting(namebuf, namelen)) {
469 struct strbuf quoted = STRBUF_INIT;
470 add_rfc822_quoted("ed, namebuf, namelen);
471 strbuf_add_wrapped_bytes(sb, quoted.buf, quoted.len,
473 strbuf_release("ed);
475 strbuf_add_wrapped_bytes(sb, namebuf, namelen,
480 last_line_length(sb) + strlen(" <") + maillen + strlen(">"))
481 strbuf_addch(sb, '\n');
482 strbuf_addf(sb, " <%.*s>\n", (int)maillen, mailbuf);
484 strbuf_addf(sb, "%s: %.*s%.*s <%.*s>\n", what,
485 (pp->fmt == CMIT_FMT_FULLER) ? 4 : 0, " ",
486 (int)namelen, namebuf, (int)maillen, mailbuf);
490 case CMIT_FMT_MEDIUM:
491 strbuf_addf(sb, "Date: %s\n",
492 show_ident_date(&ident, pp->date_mode));
495 strbuf_addf(sb, "Date: %s\n",
496 show_ident_date(&ident, DATE_RFC2822));
498 case CMIT_FMT_FULLER:
499 strbuf_addf(sb, "%sDate: %s\n", what,
500 show_ident_date(&ident, pp->date_mode));
508 static int is_empty_line(const char *line, int *len_p)
511 while (len && isspace(line[len - 1]))
517 static const char *skip_empty_lines(const char *msg)
520 int linelen = get_one_line(msg);
524 if (!is_empty_line(msg, &ll))
531 static void add_merge_info(const struct pretty_print_context *pp,
532 struct strbuf *sb, const struct commit *commit)
534 struct commit_list *parent = commit->parents;
536 if ((pp->fmt == CMIT_FMT_ONELINE) || (pp->fmt == CMIT_FMT_EMAIL) ||
537 !parent || !parent->next)
540 strbuf_addstr(sb, "Merge:");
543 struct commit *p = parent->item;
544 const char *hex = NULL;
546 hex = find_unique_abbrev(p->object.sha1, pp->abbrev);
548 hex = sha1_to_hex(p->object.sha1);
549 parent = parent->next;
551 strbuf_addf(sb, " %s", hex);
553 strbuf_addch(sb, '\n');
556 static char *get_header(const char *msg, const char *key)
559 const char *v = find_commit_header(msg, key, &len);
560 return v ? xmemdupz(v, len) : NULL;
563 static char *replace_encoding_header(char *buf, const char *encoding)
565 struct strbuf tmp = STRBUF_INIT;
569 /* guess if there is an encoding header before a \n\n */
570 while (!starts_with(cp, "encoding ")) {
571 cp = strchr(cp, '\n');
572 if (!cp || *++cp == '\n')
576 cp = strchr(cp, '\n');
578 return buf; /* should not happen but be defensive */
579 len = cp + 1 - (buf + start);
581 strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1);
582 if (is_encoding_utf8(encoding)) {
583 /* we have re-coded to UTF-8; drop the header */
584 strbuf_remove(&tmp, start, len);
586 /* just replaces XXXX in 'encoding XXXX\n' */
587 strbuf_splice(&tmp, start + strlen("encoding "),
588 len - strlen("encoding \n"),
589 encoding, strlen(encoding));
591 return strbuf_detach(&tmp, NULL);
594 const char *logmsg_reencode(const struct commit *commit,
595 char **commit_encoding,
596 const char *output_encoding)
598 static const char *utf8 = "UTF-8";
599 const char *use_encoding;
601 const char *msg = get_commit_buffer(commit, NULL);
604 if (!output_encoding || !*output_encoding) {
606 *commit_encoding = get_header(msg, "encoding");
609 encoding = get_header(msg, "encoding");
611 *commit_encoding = encoding;
612 use_encoding = encoding ? encoding : utf8;
613 if (same_encoding(use_encoding, output_encoding)) {
615 * No encoding work to be done. If we have no encoding header
616 * at all, then there's nothing to do, and we can return the
617 * message verbatim (whether newly allocated or not).
623 * Otherwise, we still want to munge the encoding header in the
624 * result, which will be done by modifying the buffer. If we
625 * are using a fresh copy, we can reuse it. But if we are using
626 * the cached copy from get_commit_buffer, we need to duplicate it
627 * to avoid munging the cached copy.
629 if (msg == get_cached_commit_buffer(commit, NULL))
636 * There's actual encoding work to do. Do the reencoding, which
637 * still leaves the header to be replaced in the next step. At
638 * this point, we are done with msg. If we allocated a fresh
639 * copy, we can free it.
641 out = reencode_string(msg, output_encoding, use_encoding);
643 unuse_commit_buffer(commit, msg);
647 * This replacement actually consumes the buffer we hand it, so we do
648 * not have to worry about freeing the old "out" here.
651 out = replace_encoding_header(out, output_encoding);
653 if (!commit_encoding)
656 * If the re-encoding failed, out might be NULL here; in that
657 * case we just return the commit message verbatim.
659 return out ? out : msg;
662 static int mailmap_name(const char **email, size_t *email_len,
663 const char **name, size_t *name_len)
665 static struct string_list *mail_map;
667 mail_map = xcalloc(1, sizeof(*mail_map));
668 read_mailmap(mail_map, NULL);
670 return mail_map->nr && map_user(mail_map, email, email_len, name, name_len);
673 static size_t format_person_part(struct strbuf *sb, char part,
674 const char *msg, int len, enum date_mode dmode)
676 /* currently all placeholders have same length */
677 const int placeholder_len = 2;
678 struct ident_split s;
679 const char *name, *mail;
680 size_t maillen, namelen;
682 if (split_ident_line(&s, msg, len) < 0)
686 namelen = s.name_end - s.name_begin;
688 maillen = s.mail_end - s.mail_begin;
690 if (part == 'N' || part == 'E') /* mailmap lookup */
691 mailmap_name(&mail, &maillen, &name, &namelen);
692 if (part == 'n' || part == 'N') { /* name */
693 strbuf_add(sb, name, namelen);
694 return placeholder_len;
696 if (part == 'e' || part == 'E') { /* email */
697 strbuf_add(sb, mail, maillen);
698 return placeholder_len;
704 if (part == 't') { /* date, UNIX timestamp */
705 strbuf_add(sb, s.date_begin, s.date_end - s.date_begin);
706 return placeholder_len;
711 strbuf_addstr(sb, show_ident_date(&s, dmode));
712 return placeholder_len;
713 case 'D': /* date, RFC2822 style */
714 strbuf_addstr(sb, show_ident_date(&s, DATE_RFC2822));
715 return placeholder_len;
716 case 'r': /* date, relative */
717 strbuf_addstr(sb, show_ident_date(&s, DATE_RELATIVE));
718 return placeholder_len;
719 case 'i': /* date, ISO 8601-like */
720 strbuf_addstr(sb, show_ident_date(&s, DATE_ISO8601));
721 return placeholder_len;
722 case 'I': /* date, ISO 8601 strict */
723 strbuf_addstr(sb, show_ident_date(&s, DATE_ISO8601_STRICT));
724 return placeholder_len;
729 * reading from either a bogus commit, or a reflog entry with
730 * %gn, %ge, etc.; 'sb' cannot be updated, but we still need
731 * to compute a valid return value.
733 if (part == 'n' || part == 'e' || part == 't' || part == 'd'
734 || part == 'D' || part == 'r' || part == 'i')
735 return placeholder_len;
737 return 0; /* unknown placeholder */
749 flush_left_and_steal,
760 struct format_commit_context {
761 const struct commit *commit;
762 const struct pretty_print_context *pretty_ctx;
763 unsigned commit_header_parsed:1;
764 unsigned commit_message_parsed:1;
765 struct signature_check signature_check;
766 enum flush_type flush_type;
767 enum trunc_type truncate;
769 char *commit_encoding;
770 size_t width, indent1, indent2;
774 /* These offsets are relative to the start of the commit message. */
776 struct chunk committer;
781 /* The following ones are relative to the result struct strbuf. */
782 struct chunk abbrev_commit_hash;
783 struct chunk abbrev_tree_hash;
784 struct chunk abbrev_parent_hashes;
788 static int add_again(struct strbuf *sb, struct chunk *chunk)
791 strbuf_adddup(sb, chunk->off, chunk->len);
796 * We haven't seen this chunk before. Our caller is surely
797 * going to add it the hard way now. Remember the most likely
798 * start of the to-be-added chunk: the current end of the
801 chunk->off = sb->len;
805 static void parse_commit_header(struct format_commit_context *context)
807 const char *msg = context->message;
810 for (i = 0; msg[i]; i++) {
813 for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
818 } else if (skip_prefix(msg + i, "author ", &name)) {
819 context->author.off = name - msg;
820 context->author.len = msg + eol - name;
821 } else if (skip_prefix(msg + i, "committer ", &name)) {
822 context->committer.off = name - msg;
823 context->committer.len = msg + eol - name;
827 context->message_off = i;
828 context->commit_header_parsed = 1;
831 static int istitlechar(char c)
833 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
834 (c >= '0' && c <= '9') || c == '.' || c == '_';
837 static void format_sanitized_subject(struct strbuf *sb, const char *msg)
840 size_t start_len = sb->len;
843 for (; *msg && *msg != '\n'; msg++) {
844 if (istitlechar(*msg)) {
846 strbuf_addch(sb, '-');
848 strbuf_addch(sb, *msg);
850 while (*(msg+1) == '.')
856 /* trim any trailing '.' or '-' characters */
858 while (sb->len - trimlen > start_len &&
859 (sb->buf[sb->len - 1 - trimlen] == '.'
860 || sb->buf[sb->len - 1 - trimlen] == '-'))
862 strbuf_remove(sb, sb->len - trimlen, trimlen);
865 const char *format_subject(struct strbuf *sb, const char *msg,
866 const char *line_separator)
871 const char *line = msg;
872 int linelen = get_one_line(line);
875 if (!linelen || is_empty_line(line, &linelen))
880 strbuf_grow(sb, linelen + 2);
882 strbuf_addstr(sb, line_separator);
883 strbuf_add(sb, line, linelen);
889 static void parse_commit_message(struct format_commit_context *c)
891 const char *msg = c->message + c->message_off;
892 const char *start = c->message;
894 msg = skip_empty_lines(msg);
895 c->subject_off = msg - start;
897 msg = format_subject(NULL, msg, NULL);
898 msg = skip_empty_lines(msg);
899 c->body_off = msg - start;
901 c->commit_message_parsed = 1;
904 static void strbuf_wrap(struct strbuf *sb, size_t pos,
905 size_t width, size_t indent1, size_t indent2)
907 struct strbuf tmp = STRBUF_INIT;
910 strbuf_add(&tmp, sb->buf, pos);
911 strbuf_add_wrapped_text(&tmp, sb->buf + pos,
912 (int) indent1, (int) indent2, (int) width);
913 strbuf_swap(&tmp, sb);
914 strbuf_release(&tmp);
917 static void rewrap_message_tail(struct strbuf *sb,
918 struct format_commit_context *c,
919 size_t new_width, size_t new_indent1,
922 if (c->width == new_width && c->indent1 == new_indent1 &&
923 c->indent2 == new_indent2)
925 if (c->wrap_start < sb->len)
926 strbuf_wrap(sb, c->wrap_start, c->width, c->indent1, c->indent2);
927 c->wrap_start = sb->len;
928 c->width = new_width;
929 c->indent1 = new_indent1;
930 c->indent2 = new_indent2;
933 static int format_reflog_person(struct strbuf *sb,
935 struct reflog_walk_info *log,
936 enum date_mode dmode)
943 ident = get_reflog_ident(log);
947 return format_person_part(sb, part, ident, strlen(ident), dmode);
950 static size_t parse_color(struct strbuf *sb, /* in UTF-8 */
951 const char *placeholder,
952 struct format_commit_context *c)
954 const char *rest = placeholder;
956 if (placeholder[1] == '(') {
957 const char *begin = placeholder + 2;
958 const char *end = strchr(begin, ')');
959 char color[COLOR_MAXLEN];
963 if (skip_prefix(begin, "auto,", &begin)) {
964 if (!want_color(c->pretty_ctx->color))
965 return end - placeholder + 1;
967 if (color_parse_mem(begin, end - begin, color) < 0)
968 die(_("unable to parse --pretty format"));
969 strbuf_addstr(sb, color);
970 return end - placeholder + 1;
972 if (skip_prefix(placeholder + 1, "red", &rest))
973 strbuf_addstr(sb, GIT_COLOR_RED);
974 else if (skip_prefix(placeholder + 1, "green", &rest))
975 strbuf_addstr(sb, GIT_COLOR_GREEN);
976 else if (skip_prefix(placeholder + 1, "blue", &rest))
977 strbuf_addstr(sb, GIT_COLOR_BLUE);
978 else if (skip_prefix(placeholder + 1, "reset", &rest))
979 strbuf_addstr(sb, GIT_COLOR_RESET);
980 return rest - placeholder;
983 static size_t parse_padding_placeholder(struct strbuf *sb,
984 const char *placeholder,
985 struct format_commit_context *c)
987 const char *ch = placeholder;
988 enum flush_type flush_type;
993 flush_type = flush_right;
997 flush_type = flush_both;
999 } else if (*ch == '>') {
1000 flush_type = flush_left_and_steal;
1003 flush_type = flush_left;
1009 /* the next value means "wide enough to that column" */
1016 const char *start = ch + 1;
1017 const char *end = start + strcspn(start, ",)");
1020 if (!end || end == start)
1022 width = strtoul(start, &next, 10);
1023 if (next == start || width == 0)
1025 c->padding = to_column ? -width : width;
1026 c->flush_type = flush_type;
1030 end = strchr(start, ')');
1031 if (!end || end == start)
1033 if (starts_with(start, "trunc)"))
1034 c->truncate = trunc_right;
1035 else if (starts_with(start, "ltrunc)"))
1036 c->truncate = trunc_left;
1037 else if (starts_with(start, "mtrunc)"))
1038 c->truncate = trunc_middle;
1042 c->truncate = trunc_none;
1044 return end - placeholder + 1;
1049 static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
1050 const char *placeholder,
1053 struct format_commit_context *c = context;
1054 const struct commit *commit = c->commit;
1055 const char *msg = c->message;
1056 struct commit_list *p;
1059 /* these are independent of the commit */
1060 switch (placeholder[0]) {
1062 if (starts_with(placeholder + 1, "(auto)")) {
1064 return 7; /* consumed 7 bytes, "C(auto)" */
1066 int ret = parse_color(sb, placeholder, c);
1070 * Otherwise, we decided to treat %C<unknown>
1071 * as a literal string, and the previous
1072 * %C(auto) is still valid.
1076 case 'n': /* newline */
1077 strbuf_addch(sb, '\n');
1080 /* %x00 == NUL, %x0a == LF, etc. */
1081 if (0 <= (h1 = hexval_table[0xff & placeholder[1]]) &&
1083 0 <= (h2 = hexval_table[0xff & placeholder[2]]) &&
1085 strbuf_addch(sb, (h1<<4)|h2);
1090 if (placeholder[1] == '(') {
1091 unsigned long width = 0, indent1 = 0, indent2 = 0;
1093 const char *start = placeholder + 2;
1094 const char *end = strchr(start, ')');
1098 width = strtoul(start, &next, 10);
1100 indent1 = strtoul(next + 1, &next, 10);
1102 indent2 = strtoul(next + 1,
1109 rewrap_message_tail(sb, c, width, indent1, indent2);
1110 return end - placeholder + 1;
1116 return parse_padding_placeholder(sb, placeholder, c);
1119 /* these depend on the commit */
1120 if (!commit->object.parsed)
1121 parse_object(commit->object.sha1);
1123 switch (placeholder[0]) {
1124 case 'H': /* commit hash */
1125 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_COMMIT));
1126 strbuf_addstr(sb, sha1_to_hex(commit->object.sha1));
1127 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
1129 case 'h': /* abbreviated commit hash */
1130 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_COMMIT));
1131 if (add_again(sb, &c->abbrev_commit_hash)) {
1132 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
1135 strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1,
1136 c->pretty_ctx->abbrev));
1137 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
1138 c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off;
1140 case 'T': /* tree hash */
1141 strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1));
1143 case 't': /* abbreviated tree hash */
1144 if (add_again(sb, &c->abbrev_tree_hash))
1146 strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1,
1147 c->pretty_ctx->abbrev));
1148 c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off;
1150 case 'P': /* parent hashes */
1151 for (p = commit->parents; p; p = p->next) {
1152 if (p != commit->parents)
1153 strbuf_addch(sb, ' ');
1154 strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1));
1157 case 'p': /* abbreviated parent hashes */
1158 if (add_again(sb, &c->abbrev_parent_hashes))
1160 for (p = commit->parents; p; p = p->next) {
1161 if (p != commit->parents)
1162 strbuf_addch(sb, ' ');
1163 strbuf_addstr(sb, find_unique_abbrev(
1164 p->item->object.sha1,
1165 c->pretty_ctx->abbrev));
1167 c->abbrev_parent_hashes.len = sb->len -
1168 c->abbrev_parent_hashes.off;
1170 case 'm': /* left/right/bottom */
1171 strbuf_addstr(sb, get_revision_mark(NULL, commit));
1174 load_ref_decorations(DECORATE_SHORT_REFS);
1175 format_decorations(sb, commit, c->auto_color);
1178 load_ref_decorations(DECORATE_SHORT_REFS);
1179 format_decorations_extended(sb, commit, c->auto_color, "", ", ", "");
1181 case 'g': /* reflog info */
1182 switch(placeholder[1]) {
1183 case 'd': /* reflog selector */
1185 if (c->pretty_ctx->reflog_info)
1186 get_reflog_selector(sb,
1187 c->pretty_ctx->reflog_info,
1188 c->pretty_ctx->date_mode,
1189 c->pretty_ctx->date_mode_explicit,
1190 (placeholder[1] == 'd'));
1192 case 's': /* reflog message */
1193 if (c->pretty_ctx->reflog_info)
1194 get_reflog_message(sb, c->pretty_ctx->reflog_info);
1200 return format_reflog_person(sb,
1202 c->pretty_ctx->reflog_info,
1203 c->pretty_ctx->date_mode);
1205 return 0; /* unknown %g placeholder */
1207 if (c->pretty_ctx->notes_message) {
1208 strbuf_addstr(sb, c->pretty_ctx->notes_message);
1214 if (placeholder[0] == 'G') {
1215 if (!c->signature_check.result)
1216 check_commit_signature(c->commit, &(c->signature_check));
1217 switch (placeholder[1]) {
1219 if (c->signature_check.gpg_output)
1220 strbuf_addstr(sb, c->signature_check.gpg_output);
1223 switch (c->signature_check.result) {
1228 strbuf_addch(sb, c->signature_check.result);
1232 if (c->signature_check.signer)
1233 strbuf_addstr(sb, c->signature_check.signer);
1236 if (c->signature_check.key)
1237 strbuf_addstr(sb, c->signature_check.key);
1246 /* For the rest we have to parse the commit header. */
1247 if (!c->commit_header_parsed)
1248 parse_commit_header(c);
1250 switch (placeholder[0]) {
1251 case 'a': /* author ... */
1252 return format_person_part(sb, placeholder[1],
1253 msg + c->author.off, c->author.len,
1254 c->pretty_ctx->date_mode);
1255 case 'c': /* committer ... */
1256 return format_person_part(sb, placeholder[1],
1257 msg + c->committer.off, c->committer.len,
1258 c->pretty_ctx->date_mode);
1259 case 'e': /* encoding */
1260 if (c->commit_encoding)
1261 strbuf_addstr(sb, c->commit_encoding);
1263 case 'B': /* raw body */
1264 /* message_off is always left at the initial newline */
1265 strbuf_addstr(sb, msg + c->message_off + 1);
1269 /* Now we need to parse the commit message. */
1270 if (!c->commit_message_parsed)
1271 parse_commit_message(c);
1273 switch (placeholder[0]) {
1274 case 's': /* subject */
1275 format_subject(sb, msg + c->subject_off, " ");
1277 case 'f': /* sanitized subject */
1278 format_sanitized_subject(sb, msg + c->subject_off);
1280 case 'b': /* body */
1281 strbuf_addstr(sb, msg + c->body_off);
1284 return 0; /* unknown placeholder */
1287 static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */
1288 const char *placeholder,
1289 struct format_commit_context *c)
1291 struct strbuf local_sb = STRBUF_INIT;
1292 int total_consumed = 0, len, padding = c->padding;
1294 const char *start = strrchr(sb->buf, '\n');
1298 occupied = utf8_strnwidth(start, -1, 1);
1299 padding = (-padding) - occupied;
1302 int modifier = *placeholder == 'C';
1303 int consumed = format_commit_one(&local_sb, placeholder, c);
1304 total_consumed += consumed;
1309 placeholder += consumed;
1310 if (*placeholder != '%')
1315 len = utf8_strnwidth(local_sb.buf, -1, 1);
1317 if (c->flush_type == flush_left_and_steal) {
1318 const char *ch = sb->buf + sb->len - 1;
1319 while (len > padding && ch > sb->buf) {
1326 /* check for trailing ansi sequences */
1330 while (ch - p < 10 && *p != '\033')
1333 ch + 1 - p != display_mode_esc_sequence_len(p))
1336 * got a good ansi sequence, put it back to
1337 * local_sb as we're cutting sb
1339 strbuf_insert(&local_sb, 0, p, ch + 1 - p);
1342 strbuf_setlen(sb, ch + 1 - sb->buf);
1343 c->flush_type = flush_left;
1346 if (len > padding) {
1347 switch (c->truncate) {
1349 strbuf_utf8_replace(&local_sb,
1350 0, len - (padding - 2),
1354 strbuf_utf8_replace(&local_sb,
1356 len - (padding - 2),
1360 strbuf_utf8_replace(&local_sb,
1361 padding - 2, len - (padding - 2),
1367 strbuf_addbuf(sb, &local_sb);
1369 int sb_len = sb->len, offset = 0;
1370 if (c->flush_type == flush_left)
1371 offset = padding - len;
1372 else if (c->flush_type == flush_both)
1373 offset = (padding - len) / 2;
1375 * we calculate padding in columns, now
1376 * convert it back to chars
1378 padding = padding - len + local_sb.len;
1379 strbuf_addchars(sb, ' ', padding);
1380 memcpy(sb->buf + sb_len + offset, local_sb.buf,
1383 strbuf_release(&local_sb);
1384 c->flush_type = no_flush;
1385 return total_consumed;
1388 static size_t format_commit_item(struct strbuf *sb, /* in UTF-8 */
1389 const char *placeholder,
1396 ADD_LF_BEFORE_NON_EMPTY,
1397 DEL_LF_BEFORE_EMPTY,
1398 ADD_SP_BEFORE_NON_EMPTY
1401 switch (placeholder[0]) {
1403 magic = DEL_LF_BEFORE_EMPTY;
1406 magic = ADD_LF_BEFORE_NON_EMPTY;
1409 magic = ADD_SP_BEFORE_NON_EMPTY;
1414 if (magic != NO_MAGIC)
1418 if (((struct format_commit_context *)context)->flush_type != no_flush)
1419 consumed = format_and_pad_commit(sb, placeholder, context);
1421 consumed = format_commit_one(sb, placeholder, context);
1422 if (magic == NO_MAGIC)
1425 if ((orig_len == sb->len) && magic == DEL_LF_BEFORE_EMPTY) {
1426 while (sb->len && sb->buf[sb->len - 1] == '\n')
1427 strbuf_setlen(sb, sb->len - 1);
1428 } else if (orig_len != sb->len) {
1429 if (magic == ADD_LF_BEFORE_NON_EMPTY)
1430 strbuf_insert(sb, orig_len, "\n", 1);
1431 else if (magic == ADD_SP_BEFORE_NON_EMPTY)
1432 strbuf_insert(sb, orig_len, " ", 1);
1434 return consumed + 1;
1437 static size_t userformat_want_item(struct strbuf *sb, const char *placeholder,
1440 struct userformat_want *w = context;
1442 if (*placeholder == '+' || *placeholder == '-' || *placeholder == ' ')
1445 switch (*placeholder) {
1453 void userformat_find_requirements(const char *fmt, struct userformat_want *w)
1455 struct strbuf dummy = STRBUF_INIT;
1462 strbuf_expand(&dummy, fmt, userformat_want_item, w);
1463 strbuf_release(&dummy);
1466 void format_commit_message(const struct commit *commit,
1467 const char *format, struct strbuf *sb,
1468 const struct pretty_print_context *pretty_ctx)
1470 struct format_commit_context context;
1471 const char *output_enc = pretty_ctx->output_encoding;
1472 const char *utf8 = "UTF-8";
1474 memset(&context, 0, sizeof(context));
1475 context.commit = commit;
1476 context.pretty_ctx = pretty_ctx;
1477 context.wrap_start = sb->len;
1479 * convert a commit message to UTF-8 first
1480 * as far as 'format_commit_item' assumes it in UTF-8
1482 context.message = logmsg_reencode(commit,
1483 &context.commit_encoding,
1486 strbuf_expand(sb, format, format_commit_item, &context);
1487 rewrap_message_tail(sb, &context, 0, 0, 0);
1489 /* then convert a commit message to an actual output encoding */
1491 if (same_encoding(utf8, output_enc))
1494 if (context.commit_encoding &&
1495 !same_encoding(context.commit_encoding, utf8))
1496 output_enc = context.commit_encoding;
1501 char *out = reencode_string_len(sb->buf, sb->len,
1502 output_enc, utf8, &outsz);
1504 strbuf_attach(sb, out, outsz, outsz + 1);
1507 free(context.commit_encoding);
1508 unuse_commit_buffer(commit, context.message);
1511 static void pp_header(struct pretty_print_context *pp,
1512 const char *encoding,
1513 const struct commit *commit,
1517 int parents_shown = 0;
1520 const char *name, *line = *msg_p;
1521 int linelen = get_one_line(*msg_p);
1531 if (pp->fmt == CMIT_FMT_RAW) {
1532 strbuf_add(sb, line, linelen);
1536 if (starts_with(line, "parent ")) {
1538 die("bad parent line in commit");
1542 if (!parents_shown) {
1543 unsigned num = commit_list_count(commit->parents);
1544 /* with enough slop */
1545 strbuf_grow(sb, num * 50 + 20);
1546 add_merge_info(pp, sb, commit);
1551 * MEDIUM == DEFAULT shows only author with dates.
1552 * FULL shows both authors but not dates.
1553 * FULLER shows both authors and dates.
1555 if (skip_prefix(line, "author ", &name)) {
1556 strbuf_grow(sb, linelen + 80);
1557 pp_user_info(pp, "Author", sb, name, encoding);
1559 if (skip_prefix(line, "committer ", &name) &&
1560 (pp->fmt == CMIT_FMT_FULL || pp->fmt == CMIT_FMT_FULLER)) {
1561 strbuf_grow(sb, linelen + 80);
1562 pp_user_info(pp, "Commit", sb, name, encoding);
1567 void pp_title_line(struct pretty_print_context *pp,
1570 const char *encoding,
1573 static const int max_length = 78; /* per rfc2047 */
1574 struct strbuf title;
1576 strbuf_init(&title, 80);
1577 *msg_p = format_subject(&title, *msg_p,
1578 pp->preserve_subject ? "\n" : " ");
1580 strbuf_grow(sb, title.len + 1024);
1582 strbuf_addstr(sb, pp->subject);
1583 if (needs_rfc2047_encoding(title.buf, title.len, RFC2047_SUBJECT))
1584 add_rfc2047(sb, title.buf, title.len,
1585 encoding, RFC2047_SUBJECT);
1587 strbuf_add_wrapped_bytes(sb, title.buf, title.len,
1588 -last_line_length(sb), 1, max_length);
1590 strbuf_addbuf(sb, &title);
1592 strbuf_addch(sb, '\n');
1594 if (need_8bit_cte == 0) {
1596 for (i = 0; i < pp->in_body_headers.nr; i++) {
1597 if (has_non_ascii(pp->in_body_headers.items[i].string)) {
1604 if (need_8bit_cte > 0) {
1605 const char *header_fmt =
1606 "MIME-Version: 1.0\n"
1607 "Content-Type: text/plain; charset=%s\n"
1608 "Content-Transfer-Encoding: 8bit\n";
1609 strbuf_addf(sb, header_fmt, encoding);
1611 if (pp->after_subject) {
1612 strbuf_addstr(sb, pp->after_subject);
1614 if (pp->fmt == CMIT_FMT_EMAIL) {
1615 strbuf_addch(sb, '\n');
1618 if (pp->in_body_headers.nr) {
1620 for (i = 0; i < pp->in_body_headers.nr; i++) {
1621 strbuf_addstr(sb, pp->in_body_headers.items[i].string);
1622 free(pp->in_body_headers.items[i].string);
1624 string_list_clear(&pp->in_body_headers, 0);
1625 strbuf_addch(sb, '\n');
1628 strbuf_release(&title);
1631 void pp_remainder(struct pretty_print_context *pp,
1638 const char *line = *msg_p;
1639 int linelen = get_one_line(line);
1645 if (is_empty_line(line, &linelen)) {
1648 if (pp->fmt == CMIT_FMT_SHORT)
1653 strbuf_grow(sb, linelen + indent + 20);
1655 strbuf_addchars(sb, ' ', indent);
1656 strbuf_add(sb, line, linelen);
1657 strbuf_addch(sb, '\n');
1661 void pretty_print_commit(struct pretty_print_context *pp,
1662 const struct commit *commit,
1665 unsigned long beginning_of_body;
1668 const char *reencoded;
1669 const char *encoding;
1670 int need_8bit_cte = pp->need_8bit_cte;
1672 if (pp->fmt == CMIT_FMT_USERFORMAT) {
1673 format_commit_message(commit, user_format, sb, pp);
1677 encoding = get_log_output_encoding();
1678 msg = reencoded = logmsg_reencode(commit, NULL, encoding);
1680 if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL)
1684 * We need to check and emit Content-type: to mark it
1685 * as 8-bit if we haven't done so.
1687 if (pp->fmt == CMIT_FMT_EMAIL && need_8bit_cte == 0) {
1690 for (in_body = i = 0; (ch = msg[i]); i++) {
1692 /* author could be non 7-bit ASCII but
1693 * the log may be so; skip over the
1694 * header part first.
1696 if (ch == '\n' && msg[i+1] == '\n')
1699 else if (non_ascii(ch)) {
1706 pp_header(pp, encoding, commit, &msg, sb);
1707 if (pp->fmt != CMIT_FMT_ONELINE && !pp->subject) {
1708 strbuf_addch(sb, '\n');
1711 /* Skip excess blank lines at the beginning of body, if any... */
1712 msg = skip_empty_lines(msg);
1714 /* These formats treat the title line specially. */
1715 if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL)
1716 pp_title_line(pp, &msg, sb, encoding, need_8bit_cte);
1718 beginning_of_body = sb->len;
1719 if (pp->fmt != CMIT_FMT_ONELINE)
1720 pp_remainder(pp, &msg, sb, indent);
1723 /* Make sure there is an EOLN for the non-oneline case */
1724 if (pp->fmt != CMIT_FMT_ONELINE)
1725 strbuf_addch(sb, '\n');
1728 * The caller may append additional body text in e-mail
1729 * format. Make sure we did not strip the blank line
1730 * between the header and the body.
1732 if (pp->fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
1733 strbuf_addch(sb, '\n');
1735 unuse_commit_buffer(commit, reencoded);
1738 void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
1741 struct pretty_print_context pp = {0};
1743 pretty_print_commit(&pp, commit, sb);