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 (starts_with(fmt, "format:") || starts_with(fmt, "tformat:")) {
77 commit_format->is_tformat = fmt[0] == 't';
78 fmt = strchr(fmt, ':') + 1;
79 } else if (strchr(fmt, '%'))
80 commit_format->is_tformat = 1;
82 commit_format->is_alias = 1;
83 commit_format->user_format = fmt;
88 static void setup_commit_formats(void)
90 struct cmt_fmt_map builtin_formats[] = {
91 { "raw", CMIT_FMT_RAW, 0 },
92 { "medium", CMIT_FMT_MEDIUM, 0 },
93 { "short", CMIT_FMT_SHORT, 0 },
94 { "email", CMIT_FMT_EMAIL, 0 },
95 { "fuller", CMIT_FMT_FULLER, 0 },
96 { "full", CMIT_FMT_FULL, 0 },
97 { "oneline", CMIT_FMT_ONELINE, 1 }
99 commit_formats_len = ARRAY_SIZE(builtin_formats);
100 builtin_formats_len = commit_formats_len;
101 ALLOC_GROW(commit_formats, commit_formats_len, commit_formats_alloc);
102 memcpy(commit_formats, builtin_formats,
103 sizeof(*builtin_formats)*ARRAY_SIZE(builtin_formats));
105 git_config(git_pretty_formats_config, NULL);
108 static struct cmt_fmt_map *find_commit_format_recursive(const char *sought,
109 const char *original,
110 int num_redirections)
112 struct cmt_fmt_map *found = NULL;
113 size_t found_match_len = 0;
116 if (num_redirections >= commit_formats_len)
117 die("invalid --pretty format: "
118 "'%s' references an alias which points to itself",
121 for (i = 0; i < commit_formats_len; i++) {
124 if (!starts_with(commit_formats[i].name, sought))
127 match_len = strlen(commit_formats[i].name);
128 if (found == NULL || found_match_len > match_len) {
129 found = &commit_formats[i];
130 found_match_len = match_len;
134 if (found && found->is_alias) {
135 found = find_commit_format_recursive(found->user_format,
143 static struct cmt_fmt_map *find_commit_format(const char *sought)
146 setup_commit_formats();
148 return find_commit_format_recursive(sought, sought, 0);
151 void get_commit_format(const char *arg, struct rev_info *rev)
153 struct cmt_fmt_map *commit_format;
155 rev->use_terminator = 0;
157 rev->commit_format = CMIT_FMT_DEFAULT;
160 if (starts_with(arg, "format:") || starts_with(arg, "tformat:")) {
161 save_user_format(rev, strchr(arg, ':') + 1, arg[0] == 't');
165 if (!*arg || strchr(arg, '%')) {
166 save_user_format(rev, arg, 1);
170 commit_format = find_commit_format(arg);
172 die("invalid --pretty format: %s", arg);
174 rev->commit_format = commit_format->format;
175 rev->use_terminator = commit_format->is_tformat;
176 if (commit_format->format == CMIT_FMT_USERFORMAT) {
177 save_user_format(rev, commit_format->user_format,
178 commit_format->is_tformat);
183 * Generic support for pretty-printing the header
185 static int get_one_line(const char *msg)
200 /* High bit set, or ISO-2022-INT */
201 static int non_ascii(int ch)
203 return !isascii(ch) || ch == '\033';
206 int has_non_ascii(const char *s)
211 while ((ch = *s++) != '\0') {
218 static int is_rfc822_special(char ch)
240 static int needs_rfc822_quoting(const char *s, int len)
243 for (i = 0; i < len; i++)
244 if (is_rfc822_special(s[i]))
249 static int last_line_length(struct strbuf *sb)
253 /* How many bytes are already used on the last line? */
254 for (i = sb->len - 1; i >= 0; i--)
255 if (sb->buf[i] == '\n')
257 return sb->len - (i + 1);
260 static void add_rfc822_quoted(struct strbuf *out, const char *s, int len)
264 /* just a guess, we may have to also backslash-quote */
265 strbuf_grow(out, len + 2);
267 strbuf_addch(out, '"');
268 for (i = 0; i < len; i++) {
272 strbuf_addch(out, '\\');
275 strbuf_addch(out, s[i]);
278 strbuf_addch(out, '"');
286 static int is_rfc2047_special(char ch, enum rfc2047_type type)
289 * rfc2047, section 4.2:
291 * 8-bit values which correspond to printable ASCII characters other
292 * than "=", "?", and "_" (underscore), MAY be represented as those
293 * characters. (But see section 5 for restrictions.) In
294 * particular, SPACE and TAB MUST NOT be represented as themselves
295 * within encoded words.
299 * rule out non-ASCII characters and non-printable characters (the
300 * non-ASCII check should be redundant as isprint() is not localized
301 * and only knows about ASCII, but be defensive about that)
303 if (non_ascii(ch) || !isprint(ch))
307 * rule out special printable characters (' ' should be the only
308 * whitespace character considered printable, but be defensive and use
311 if (isspace(ch) || ch == '=' || ch == '?' || ch == '_')
315 * rfc2047, section 5.3:
317 * As a replacement for a 'word' entity within a 'phrase', for example,
318 * one that precedes an address in a From, To, or Cc header. The ABNF
319 * definition for 'phrase' from RFC 822 thus becomes:
321 * phrase = 1*( encoded-word / word )
323 * In this case the set of characters that may be used in a "Q"-encoded
324 * 'encoded-word' is restricted to: <upper and lower case ASCII
325 * letters, decimal digits, "!", "*", "+", "-", "/", "=", and "_"
326 * (underscore, ASCII 95.)>. An 'encoded-word' that appears within a
327 * 'phrase' MUST be separated from any adjacent 'word', 'text' or
328 * 'special' by 'linear-white-space'.
331 if (type != RFC2047_ADDRESS)
334 /* '=' and '_' are special cases and have been checked above */
335 return !(isalnum(ch) || ch == '!' || ch == '*' || ch == '+' || ch == '-' || ch == '/');
338 static int needs_rfc2047_encoding(const char *line, int len,
339 enum rfc2047_type type)
343 for (i = 0; i < len; i++) {
345 if (non_ascii(ch) || ch == '\n')
347 if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
354 static void add_rfc2047(struct strbuf *sb, const char *line, size_t len,
355 const char *encoding, enum rfc2047_type type)
357 static const int max_encoded_length = 76; /* per rfc2047 */
359 int line_len = last_line_length(sb);
361 strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
362 strbuf_addf(sb, "=?%s?q?", encoding);
363 line_len += strlen(encoding) + 5; /* 5 for =??q? */
367 * RFC 2047, section 5 (3):
369 * Each 'encoded-word' MUST represent an integral number of
370 * characters. A multi-octet character may not be split across
371 * adjacent 'encoded- word's.
373 const unsigned char *p = (const unsigned char *)line;
374 int chrlen = mbs_chrlen(&line, &len, encoding);
375 int is_special = (chrlen > 1) || is_rfc2047_special(*p, type);
377 /* "=%02X" * chrlen, or the byte itself */
378 const char *encoded_fmt = is_special ? "=%02X" : "%c";
379 int encoded_len = is_special ? 3 * chrlen : 1;
382 * According to RFC 2047, we could encode the special character
383 * ' ' (space) with '_' (underscore) for readability. But many
384 * programs do not understand this and just leave the
385 * underscore in place. Thus, we do nothing special here, which
386 * causes ' ' to be encoded as '=20', avoiding this problem.
389 if (line_len + encoded_len + 2 > max_encoded_length) {
390 /* It won't fit with trailing "?=" --- break the line */
391 strbuf_addf(sb, "?=\n =?%s?q?", encoding);
392 line_len = strlen(encoding) + 5 + 1; /* =??q? plus SP */
395 for (i = 0; i < chrlen; i++)
396 strbuf_addf(sb, encoded_fmt, p[i]);
397 line_len += encoded_len;
399 strbuf_addstr(sb, "?=");
402 const char *show_ident_date(const struct ident_split *ident,
405 unsigned long date = 0;
408 if (ident->date_begin && ident->date_end)
409 date = strtoul(ident->date_begin, NULL, 10);
410 if (date_overflows(date))
413 if (ident->tz_begin && ident->tz_end)
414 tz = strtol(ident->tz_begin, NULL, 10);
415 if (tz >= INT_MAX || tz <= INT_MIN)
418 return show_date(date, tz, mode);
421 void pp_user_info(struct pretty_print_context *pp,
422 const char *what, struct strbuf *sb,
423 const char *line, const char *encoding)
425 struct ident_split ident;
427 const char *mailbuf, *namebuf;
428 size_t namelen, maillen;
429 int max_length = 78; /* per rfc2822 */
431 if (pp->fmt == CMIT_FMT_ONELINE)
434 line_end = strchrnul(line, '\n');
435 if (split_ident_line(&ident, line, line_end - line))
438 mailbuf = ident.mail_begin;
439 maillen = ident.mail_end - ident.mail_begin;
440 namebuf = ident.name_begin;
441 namelen = ident.name_end - ident.name_begin;
444 map_user(pp->mailmap, &mailbuf, &maillen, &namebuf, &namelen);
446 if (pp->fmt == CMIT_FMT_EMAIL) {
447 if (pp->from_ident && ident_cmp(pp->from_ident, &ident)) {
448 struct strbuf buf = STRBUF_INIT;
450 strbuf_addstr(&buf, "From: ");
451 strbuf_add(&buf, namebuf, namelen);
452 strbuf_addstr(&buf, " <");
453 strbuf_add(&buf, mailbuf, maillen);
454 strbuf_addstr(&buf, ">\n");
455 string_list_append(&pp->in_body_headers,
456 strbuf_detach(&buf, NULL));
458 mailbuf = pp->from_ident->mail_begin;
459 maillen = pp->from_ident->mail_end - mailbuf;
460 namebuf = pp->from_ident->name_begin;
461 namelen = pp->from_ident->name_end - namebuf;
464 strbuf_addstr(sb, "From: ");
465 if (needs_rfc2047_encoding(namebuf, namelen, RFC2047_ADDRESS)) {
466 add_rfc2047(sb, namebuf, namelen,
467 encoding, RFC2047_ADDRESS);
468 max_length = 76; /* per rfc2047 */
469 } else if (needs_rfc822_quoting(namebuf, namelen)) {
470 struct strbuf quoted = STRBUF_INIT;
471 add_rfc822_quoted("ed, namebuf, namelen);
472 strbuf_add_wrapped_bytes(sb, quoted.buf, quoted.len,
474 strbuf_release("ed);
476 strbuf_add_wrapped_bytes(sb, namebuf, namelen,
481 last_line_length(sb) + strlen(" <") + maillen + strlen(">"))
482 strbuf_addch(sb, '\n');
483 strbuf_addf(sb, " <%.*s>\n", (int)maillen, mailbuf);
485 strbuf_addf(sb, "%s: %.*s%.*s <%.*s>\n", what,
486 (pp->fmt == CMIT_FMT_FULLER) ? 4 : 0, " ",
487 (int)namelen, namebuf, (int)maillen, mailbuf);
491 case CMIT_FMT_MEDIUM:
492 strbuf_addf(sb, "Date: %s\n",
493 show_ident_date(&ident, pp->date_mode));
496 strbuf_addf(sb, "Date: %s\n",
497 show_ident_date(&ident, DATE_RFC2822));
499 case CMIT_FMT_FULLER:
500 strbuf_addf(sb, "%sDate: %s\n", what,
501 show_ident_date(&ident, pp->date_mode));
509 static int is_empty_line(const char *line, int *len_p)
512 while (len && isspace(line[len - 1]))
518 static const char *skip_empty_lines(const char *msg)
521 int linelen = get_one_line(msg);
525 if (!is_empty_line(msg, &ll))
532 static void add_merge_info(const struct pretty_print_context *pp,
533 struct strbuf *sb, const struct commit *commit)
535 struct commit_list *parent = commit->parents;
537 if ((pp->fmt == CMIT_FMT_ONELINE) || (pp->fmt == CMIT_FMT_EMAIL) ||
538 !parent || !parent->next)
541 strbuf_addstr(sb, "Merge:");
544 struct commit *p = parent->item;
545 const char *hex = NULL;
547 hex = find_unique_abbrev(p->object.sha1, pp->abbrev);
549 hex = sha1_to_hex(p->object.sha1);
550 parent = parent->next;
552 strbuf_addf(sb, " %s", hex);
554 strbuf_addch(sb, '\n');
557 static char *get_header(const struct commit *commit, const char *msg,
560 int key_len = strlen(key);
561 const char *line = msg;
564 const char *eol = strchrnul(line, '\n'), *next;
569 warning("malformed commit (header is missing newline): %s",
570 sha1_to_hex(commit->object.sha1));
574 if (eol - line > key_len &&
575 !strncmp(line, key, key_len) &&
576 line[key_len] == ' ') {
577 return xmemdupz(line + key_len + 1, eol - line - key_len - 1);
584 static char *replace_encoding_header(char *buf, const char *encoding)
586 struct strbuf tmp = STRBUF_INIT;
590 /* guess if there is an encoding header before a \n\n */
591 while (strncmp(cp, "encoding ", strlen("encoding "))) {
592 cp = strchr(cp, '\n');
593 if (!cp || *++cp == '\n')
597 cp = strchr(cp, '\n');
599 return buf; /* should not happen but be defensive */
600 len = cp + 1 - (buf + start);
602 strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1);
603 if (is_encoding_utf8(encoding)) {
604 /* we have re-coded to UTF-8; drop the header */
605 strbuf_remove(&tmp, start, len);
607 /* just replaces XXXX in 'encoding XXXX\n' */
608 strbuf_splice(&tmp, start + strlen("encoding "),
609 len - strlen("encoding \n"),
610 encoding, strlen(encoding));
612 return strbuf_detach(&tmp, NULL);
615 const char *logmsg_reencode(const struct commit *commit,
616 char **commit_encoding,
617 const char *output_encoding)
619 static const char *utf8 = "UTF-8";
620 const char *use_encoding;
622 const char *msg = get_commit_buffer(commit, NULL);
625 if (!output_encoding || !*output_encoding) {
628 get_header(commit, msg, "encoding");
631 encoding = get_header(commit, msg, "encoding");
633 *commit_encoding = encoding;
634 use_encoding = encoding ? encoding : utf8;
635 if (same_encoding(use_encoding, output_encoding)) {
637 * No encoding work to be done. If we have no encoding header
638 * at all, then there's nothing to do, and we can return the
639 * message verbatim (whether newly allocated or not).
645 * Otherwise, we still want to munge the encoding header in the
646 * result, which will be done by modifying the buffer. If we
647 * are using a fresh copy, we can reuse it. But if we are using
648 * the cached copy from get_commit_buffer, we need to duplicate it
649 * to avoid munging the cached copy.
651 if (msg == get_cached_commit_buffer(commit, NULL))
658 * There's actual encoding work to do. Do the reencoding, which
659 * still leaves the header to be replaced in the next step. At
660 * this point, we are done with msg. If we allocated a fresh
661 * copy, we can free it.
663 out = reencode_string(msg, output_encoding, use_encoding);
665 unuse_commit_buffer(commit, msg);
669 * This replacement actually consumes the buffer we hand it, so we do
670 * not have to worry about freeing the old "out" here.
673 out = replace_encoding_header(out, output_encoding);
675 if (!commit_encoding)
678 * If the re-encoding failed, out might be NULL here; in that
679 * case we just return the commit message verbatim.
681 return out ? out : msg;
684 static int mailmap_name(const char **email, size_t *email_len,
685 const char **name, size_t *name_len)
687 static struct string_list *mail_map;
689 mail_map = xcalloc(1, sizeof(*mail_map));
690 read_mailmap(mail_map, NULL);
692 return mail_map->nr && map_user(mail_map, email, email_len, name, name_len);
695 static size_t format_person_part(struct strbuf *sb, char part,
696 const char *msg, int len, enum date_mode dmode)
698 /* currently all placeholders have same length */
699 const int placeholder_len = 2;
700 struct ident_split s;
701 const char *name, *mail;
702 size_t maillen, namelen;
704 if (split_ident_line(&s, msg, len) < 0)
708 namelen = s.name_end - s.name_begin;
710 maillen = s.mail_end - s.mail_begin;
712 if (part == 'N' || part == 'E') /* mailmap lookup */
713 mailmap_name(&mail, &maillen, &name, &namelen);
714 if (part == 'n' || part == 'N') { /* name */
715 strbuf_add(sb, name, namelen);
716 return placeholder_len;
718 if (part == 'e' || part == 'E') { /* email */
719 strbuf_add(sb, mail, maillen);
720 return placeholder_len;
726 if (part == 't') { /* date, UNIX timestamp */
727 strbuf_add(sb, s.date_begin, s.date_end - s.date_begin);
728 return placeholder_len;
733 strbuf_addstr(sb, show_ident_date(&s, dmode));
734 return placeholder_len;
735 case 'D': /* date, RFC2822 style */
736 strbuf_addstr(sb, show_ident_date(&s, DATE_RFC2822));
737 return placeholder_len;
738 case 'r': /* date, relative */
739 strbuf_addstr(sb, show_ident_date(&s, DATE_RELATIVE));
740 return placeholder_len;
741 case 'i': /* date, ISO 8601 */
742 strbuf_addstr(sb, show_ident_date(&s, DATE_ISO8601));
743 return placeholder_len;
748 * reading from either a bogus commit, or a reflog entry with
749 * %gn, %ge, etc.; 'sb' cannot be updated, but we still need
750 * to compute a valid return value.
752 if (part == 'n' || part == 'e' || part == 't' || part == 'd'
753 || part == 'D' || part == 'r' || part == 'i')
754 return placeholder_len;
756 return 0; /* unknown placeholder */
768 flush_left_and_steal,
779 struct format_commit_context {
780 const struct commit *commit;
781 const struct pretty_print_context *pretty_ctx;
782 unsigned commit_header_parsed:1;
783 unsigned commit_message_parsed:1;
784 struct signature_check signature_check;
785 enum flush_type flush_type;
786 enum trunc_type truncate;
788 char *commit_encoding;
789 size_t width, indent1, indent2;
793 /* These offsets are relative to the start of the commit message. */
795 struct chunk committer;
800 /* The following ones are relative to the result struct strbuf. */
801 struct chunk abbrev_commit_hash;
802 struct chunk abbrev_tree_hash;
803 struct chunk abbrev_parent_hashes;
807 static int add_again(struct strbuf *sb, struct chunk *chunk)
810 strbuf_adddup(sb, chunk->off, chunk->len);
815 * We haven't seen this chunk before. Our caller is surely
816 * going to add it the hard way now. Remember the most likely
817 * start of the to-be-added chunk: the current end of the
820 chunk->off = sb->len;
824 static void parse_commit_header(struct format_commit_context *context)
826 const char *msg = context->message;
829 for (i = 0; msg[i]; i++) {
831 for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
836 } else if (starts_with(msg + i, "author ")) {
837 context->author.off = i + 7;
838 context->author.len = eol - i - 7;
839 } else if (starts_with(msg + i, "committer ")) {
840 context->committer.off = i + 10;
841 context->committer.len = eol - i - 10;
845 context->message_off = i;
846 context->commit_header_parsed = 1;
849 static int istitlechar(char c)
851 return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
852 (c >= '0' && c <= '9') || c == '.' || c == '_';
855 static void format_sanitized_subject(struct strbuf *sb, const char *msg)
858 size_t start_len = sb->len;
861 for (; *msg && *msg != '\n'; msg++) {
862 if (istitlechar(*msg)) {
864 strbuf_addch(sb, '-');
866 strbuf_addch(sb, *msg);
868 while (*(msg+1) == '.')
874 /* trim any trailing '.' or '-' characters */
876 while (sb->len - trimlen > start_len &&
877 (sb->buf[sb->len - 1 - trimlen] == '.'
878 || sb->buf[sb->len - 1 - trimlen] == '-'))
880 strbuf_remove(sb, sb->len - trimlen, trimlen);
883 const char *format_subject(struct strbuf *sb, const char *msg,
884 const char *line_separator)
889 const char *line = msg;
890 int linelen = get_one_line(line);
893 if (!linelen || is_empty_line(line, &linelen))
898 strbuf_grow(sb, linelen + 2);
900 strbuf_addstr(sb, line_separator);
901 strbuf_add(sb, line, linelen);
907 static void parse_commit_message(struct format_commit_context *c)
909 const char *msg = c->message + c->message_off;
910 const char *start = c->message;
912 msg = skip_empty_lines(msg);
913 c->subject_off = msg - start;
915 msg = format_subject(NULL, msg, NULL);
916 msg = skip_empty_lines(msg);
917 c->body_off = msg - start;
919 c->commit_message_parsed = 1;
922 static void strbuf_wrap(struct strbuf *sb, size_t pos,
923 size_t width, size_t indent1, size_t indent2)
925 struct strbuf tmp = STRBUF_INIT;
928 strbuf_add(&tmp, sb->buf, pos);
929 strbuf_add_wrapped_text(&tmp, sb->buf + pos,
930 (int) indent1, (int) indent2, (int) width);
931 strbuf_swap(&tmp, sb);
932 strbuf_release(&tmp);
935 static void rewrap_message_tail(struct strbuf *sb,
936 struct format_commit_context *c,
937 size_t new_width, size_t new_indent1,
940 if (c->width == new_width && c->indent1 == new_indent1 &&
941 c->indent2 == new_indent2)
943 if (c->wrap_start < sb->len)
944 strbuf_wrap(sb, c->wrap_start, c->width, c->indent1, c->indent2);
945 c->wrap_start = sb->len;
946 c->width = new_width;
947 c->indent1 = new_indent1;
948 c->indent2 = new_indent2;
951 static int format_reflog_person(struct strbuf *sb,
953 struct reflog_walk_info *log,
954 enum date_mode dmode)
961 ident = get_reflog_ident(log);
965 return format_person_part(sb, part, ident, strlen(ident), dmode);
968 static size_t parse_color(struct strbuf *sb, /* in UTF-8 */
969 const char *placeholder,
970 struct format_commit_context *c)
972 if (placeholder[1] == '(') {
973 const char *begin = placeholder + 2;
974 const char *end = strchr(begin, ')');
975 char color[COLOR_MAXLEN];
979 if (starts_with(begin, "auto,")) {
980 if (!want_color(c->pretty_ctx->color))
981 return end - placeholder + 1;
984 color_parse_mem(begin,
986 "--pretty format", color);
987 strbuf_addstr(sb, color);
988 return end - placeholder + 1;
990 if (starts_with(placeholder + 1, "red")) {
991 strbuf_addstr(sb, GIT_COLOR_RED);
993 } else if (starts_with(placeholder + 1, "green")) {
994 strbuf_addstr(sb, GIT_COLOR_GREEN);
996 } else if (starts_with(placeholder + 1, "blue")) {
997 strbuf_addstr(sb, GIT_COLOR_BLUE);
999 } else if (starts_with(placeholder + 1, "reset")) {
1000 strbuf_addstr(sb, GIT_COLOR_RESET);
1006 static size_t parse_padding_placeholder(struct strbuf *sb,
1007 const char *placeholder,
1008 struct format_commit_context *c)
1010 const char *ch = placeholder;
1011 enum flush_type flush_type;
1016 flush_type = flush_right;
1020 flush_type = flush_both;
1022 } else if (*ch == '>') {
1023 flush_type = flush_left_and_steal;
1026 flush_type = flush_left;
1032 /* the next value means "wide enough to that column" */
1039 const char *start = ch + 1;
1040 const char *end = start + strcspn(start, ",)");
1043 if (!end || end == start)
1045 width = strtoul(start, &next, 10);
1046 if (next == start || width == 0)
1048 c->padding = to_column ? -width : width;
1049 c->flush_type = flush_type;
1053 end = strchr(start, ')');
1054 if (!end || end == start)
1056 if (starts_with(start, "trunc)"))
1057 c->truncate = trunc_right;
1058 else if (starts_with(start, "ltrunc)"))
1059 c->truncate = trunc_left;
1060 else if (starts_with(start, "mtrunc)"))
1061 c->truncate = trunc_middle;
1065 c->truncate = trunc_none;
1067 return end - placeholder + 1;
1072 static size_t format_commit_one(struct strbuf *sb, /* in UTF-8 */
1073 const char *placeholder,
1076 struct format_commit_context *c = context;
1077 const struct commit *commit = c->commit;
1078 const char *msg = c->message;
1079 struct commit_list *p;
1082 /* these are independent of the commit */
1083 switch (placeholder[0]) {
1085 if (starts_with(placeholder + 1, "(auto)")) {
1087 return 7; /* consumed 7 bytes, "C(auto)" */
1089 int ret = parse_color(sb, placeholder, c);
1093 * Otherwise, we decided to treat %C<unknown>
1094 * as a literal string, and the previous
1095 * %C(auto) is still valid.
1099 case 'n': /* newline */
1100 strbuf_addch(sb, '\n');
1103 /* %x00 == NUL, %x0a == LF, etc. */
1104 if (0 <= (h1 = hexval_table[0xff & placeholder[1]]) &&
1106 0 <= (h2 = hexval_table[0xff & placeholder[2]]) &&
1108 strbuf_addch(sb, (h1<<4)|h2);
1113 if (placeholder[1] == '(') {
1114 unsigned long width = 0, indent1 = 0, indent2 = 0;
1116 const char *start = placeholder + 2;
1117 const char *end = strchr(start, ')');
1121 width = strtoul(start, &next, 10);
1123 indent1 = strtoul(next + 1, &next, 10);
1125 indent2 = strtoul(next + 1,
1132 rewrap_message_tail(sb, c, width, indent1, indent2);
1133 return end - placeholder + 1;
1139 return parse_padding_placeholder(sb, placeholder, c);
1142 /* these depend on the commit */
1143 if (!commit->object.parsed)
1144 parse_object(commit->object.sha1);
1146 switch (placeholder[0]) {
1147 case 'H': /* commit hash */
1148 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_COMMIT));
1149 strbuf_addstr(sb, sha1_to_hex(commit->object.sha1));
1150 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
1152 case 'h': /* abbreviated commit hash */
1153 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_COMMIT));
1154 if (add_again(sb, &c->abbrev_commit_hash)) {
1155 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
1158 strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1,
1159 c->pretty_ctx->abbrev));
1160 strbuf_addstr(sb, diff_get_color(c->auto_color, DIFF_RESET));
1161 c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off;
1163 case 'T': /* tree hash */
1164 strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1));
1166 case 't': /* abbreviated tree hash */
1167 if (add_again(sb, &c->abbrev_tree_hash))
1169 strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1,
1170 c->pretty_ctx->abbrev));
1171 c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off;
1173 case 'P': /* parent hashes */
1174 for (p = commit->parents; p; p = p->next) {
1175 if (p != commit->parents)
1176 strbuf_addch(sb, ' ');
1177 strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1));
1180 case 'p': /* abbreviated parent hashes */
1181 if (add_again(sb, &c->abbrev_parent_hashes))
1183 for (p = commit->parents; p; p = p->next) {
1184 if (p != commit->parents)
1185 strbuf_addch(sb, ' ');
1186 strbuf_addstr(sb, find_unique_abbrev(
1187 p->item->object.sha1,
1188 c->pretty_ctx->abbrev));
1190 c->abbrev_parent_hashes.len = sb->len -
1191 c->abbrev_parent_hashes.off;
1193 case 'm': /* left/right/bottom */
1194 strbuf_addstr(sb, get_revision_mark(NULL, commit));
1197 load_ref_decorations(DECORATE_SHORT_REFS);
1198 format_decorations(sb, commit, c->auto_color);
1200 case 'g': /* reflog info */
1201 switch(placeholder[1]) {
1202 case 'd': /* reflog selector */
1204 if (c->pretty_ctx->reflog_info)
1205 get_reflog_selector(sb,
1206 c->pretty_ctx->reflog_info,
1207 c->pretty_ctx->date_mode,
1208 c->pretty_ctx->date_mode_explicit,
1209 (placeholder[1] == 'd'));
1211 case 's': /* reflog message */
1212 if (c->pretty_ctx->reflog_info)
1213 get_reflog_message(sb, c->pretty_ctx->reflog_info);
1219 return format_reflog_person(sb,
1221 c->pretty_ctx->reflog_info,
1222 c->pretty_ctx->date_mode);
1224 return 0; /* unknown %g placeholder */
1226 if (c->pretty_ctx->notes_message) {
1227 strbuf_addstr(sb, c->pretty_ctx->notes_message);
1233 if (placeholder[0] == 'G') {
1234 if (!c->signature_check.result)
1235 check_commit_signature(c->commit, &(c->signature_check));
1236 switch (placeholder[1]) {
1238 if (c->signature_check.gpg_output)
1239 strbuf_addstr(sb, c->signature_check.gpg_output);
1242 switch (c->signature_check.result) {
1247 strbuf_addch(sb, c->signature_check.result);
1251 if (c->signature_check.signer)
1252 strbuf_addstr(sb, c->signature_check.signer);
1255 if (c->signature_check.key)
1256 strbuf_addstr(sb, c->signature_check.key);
1265 /* For the rest we have to parse the commit header. */
1266 if (!c->commit_header_parsed)
1267 parse_commit_header(c);
1269 switch (placeholder[0]) {
1270 case 'a': /* author ... */
1271 return format_person_part(sb, placeholder[1],
1272 msg + c->author.off, c->author.len,
1273 c->pretty_ctx->date_mode);
1274 case 'c': /* committer ... */
1275 return format_person_part(sb, placeholder[1],
1276 msg + c->committer.off, c->committer.len,
1277 c->pretty_ctx->date_mode);
1278 case 'e': /* encoding */
1279 if (c->commit_encoding)
1280 strbuf_addstr(sb, c->commit_encoding);
1282 case 'B': /* raw body */
1283 /* message_off is always left at the initial newline */
1284 strbuf_addstr(sb, msg + c->message_off + 1);
1288 /* Now we need to parse the commit message. */
1289 if (!c->commit_message_parsed)
1290 parse_commit_message(c);
1292 switch (placeholder[0]) {
1293 case 's': /* subject */
1294 format_subject(sb, msg + c->subject_off, " ");
1296 case 'f': /* sanitized subject */
1297 format_sanitized_subject(sb, msg + c->subject_off);
1299 case 'b': /* body */
1300 strbuf_addstr(sb, msg + c->body_off);
1303 return 0; /* unknown placeholder */
1306 static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */
1307 const char *placeholder,
1308 struct format_commit_context *c)
1310 struct strbuf local_sb = STRBUF_INIT;
1311 int total_consumed = 0, len, padding = c->padding;
1313 const char *start = strrchr(sb->buf, '\n');
1317 occupied = utf8_strnwidth(start, -1, 1);
1318 padding = (-padding) - occupied;
1321 int modifier = *placeholder == 'C';
1322 int consumed = format_commit_one(&local_sb, placeholder, c);
1323 total_consumed += consumed;
1328 placeholder += consumed;
1329 if (*placeholder != '%')
1334 len = utf8_strnwidth(local_sb.buf, -1, 1);
1336 if (c->flush_type == flush_left_and_steal) {
1337 const char *ch = sb->buf + sb->len - 1;
1338 while (len > padding && ch > sb->buf) {
1345 /* check for trailing ansi sequences */
1349 while (ch - p < 10 && *p != '\033')
1352 ch + 1 - p != display_mode_esc_sequence_len(p))
1355 * got a good ansi sequence, put it back to
1356 * local_sb as we're cutting sb
1358 strbuf_insert(&local_sb, 0, p, ch + 1 - p);
1361 strbuf_setlen(sb, ch + 1 - sb->buf);
1362 c->flush_type = flush_left;
1365 if (len > padding) {
1366 switch (c->truncate) {
1368 strbuf_utf8_replace(&local_sb,
1369 0, len - (padding - 2),
1373 strbuf_utf8_replace(&local_sb,
1375 len - (padding - 2),
1379 strbuf_utf8_replace(&local_sb,
1380 padding - 2, len - (padding - 2),
1386 strbuf_addbuf(sb, &local_sb);
1388 int sb_len = sb->len, offset = 0;
1389 if (c->flush_type == flush_left)
1390 offset = padding - len;
1391 else if (c->flush_type == flush_both)
1392 offset = (padding - len) / 2;
1394 * we calculate padding in columns, now
1395 * convert it back to chars
1397 padding = padding - len + local_sb.len;
1398 strbuf_grow(sb, padding);
1399 strbuf_setlen(sb, sb_len + padding);
1400 memset(sb->buf + sb_len, ' ', sb->len - sb_len);
1401 memcpy(sb->buf + sb_len + offset, local_sb.buf,
1404 strbuf_release(&local_sb);
1405 c->flush_type = no_flush;
1406 return total_consumed;
1409 static size_t format_commit_item(struct strbuf *sb, /* in UTF-8 */
1410 const char *placeholder,
1417 ADD_LF_BEFORE_NON_EMPTY,
1418 DEL_LF_BEFORE_EMPTY,
1419 ADD_SP_BEFORE_NON_EMPTY
1422 switch (placeholder[0]) {
1424 magic = DEL_LF_BEFORE_EMPTY;
1427 magic = ADD_LF_BEFORE_NON_EMPTY;
1430 magic = ADD_SP_BEFORE_NON_EMPTY;
1435 if (magic != NO_MAGIC)
1439 if (((struct format_commit_context *)context)->flush_type != no_flush)
1440 consumed = format_and_pad_commit(sb, placeholder, context);
1442 consumed = format_commit_one(sb, placeholder, context);
1443 if (magic == NO_MAGIC)
1446 if ((orig_len == sb->len) && magic == DEL_LF_BEFORE_EMPTY) {
1447 while (sb->len && sb->buf[sb->len - 1] == '\n')
1448 strbuf_setlen(sb, sb->len - 1);
1449 } else if (orig_len != sb->len) {
1450 if (magic == ADD_LF_BEFORE_NON_EMPTY)
1451 strbuf_insert(sb, orig_len, "\n", 1);
1452 else if (magic == ADD_SP_BEFORE_NON_EMPTY)
1453 strbuf_insert(sb, orig_len, " ", 1);
1455 return consumed + 1;
1458 static size_t userformat_want_item(struct strbuf *sb, const char *placeholder,
1461 struct userformat_want *w = context;
1463 if (*placeholder == '+' || *placeholder == '-' || *placeholder == ' ')
1466 switch (*placeholder) {
1474 void userformat_find_requirements(const char *fmt, struct userformat_want *w)
1476 struct strbuf dummy = STRBUF_INIT;
1483 strbuf_expand(&dummy, fmt, userformat_want_item, w);
1484 strbuf_release(&dummy);
1487 void format_commit_message(const struct commit *commit,
1488 const char *format, struct strbuf *sb,
1489 const struct pretty_print_context *pretty_ctx)
1491 struct format_commit_context context;
1492 const char *output_enc = pretty_ctx->output_encoding;
1493 const char *utf8 = "UTF-8";
1495 memset(&context, 0, sizeof(context));
1496 context.commit = commit;
1497 context.pretty_ctx = pretty_ctx;
1498 context.wrap_start = sb->len;
1500 * convert a commit message to UTF-8 first
1501 * as far as 'format_commit_item' assumes it in UTF-8
1503 context.message = logmsg_reencode(commit,
1504 &context.commit_encoding,
1507 strbuf_expand(sb, format, format_commit_item, &context);
1508 rewrap_message_tail(sb, &context, 0, 0, 0);
1510 /* then convert a commit message to an actual output encoding */
1512 if (same_encoding(utf8, output_enc))
1515 if (context.commit_encoding &&
1516 !same_encoding(context.commit_encoding, utf8))
1517 output_enc = context.commit_encoding;
1522 char *out = reencode_string_len(sb->buf, sb->len,
1523 output_enc, utf8, &outsz);
1525 strbuf_attach(sb, out, outsz, outsz + 1);
1528 free(context.commit_encoding);
1529 unuse_commit_buffer(commit, context.message);
1532 static void pp_header(struct pretty_print_context *pp,
1533 const char *encoding,
1534 const struct commit *commit,
1538 int parents_shown = 0;
1541 const char *line = *msg_p;
1542 int linelen = get_one_line(*msg_p);
1552 if (pp->fmt == CMIT_FMT_RAW) {
1553 strbuf_add(sb, line, linelen);
1557 if (starts_with(line, "parent ")) {
1559 die("bad parent line in commit");
1563 if (!parents_shown) {
1564 unsigned num = commit_list_count(commit->parents);
1565 /* with enough slop */
1566 strbuf_grow(sb, num * 50 + 20);
1567 add_merge_info(pp, sb, commit);
1572 * MEDIUM == DEFAULT shows only author with dates.
1573 * FULL shows both authors but not dates.
1574 * FULLER shows both authors and dates.
1576 if (starts_with(line, "author ")) {
1577 strbuf_grow(sb, linelen + 80);
1578 pp_user_info(pp, "Author", sb, line + 7, encoding);
1580 if (starts_with(line, "committer ") &&
1581 (pp->fmt == CMIT_FMT_FULL || pp->fmt == CMIT_FMT_FULLER)) {
1582 strbuf_grow(sb, linelen + 80);
1583 pp_user_info(pp, "Commit", sb, line + 10, encoding);
1588 void pp_title_line(struct pretty_print_context *pp,
1591 const char *encoding,
1594 static const int max_length = 78; /* per rfc2047 */
1595 struct strbuf title;
1597 strbuf_init(&title, 80);
1598 *msg_p = format_subject(&title, *msg_p,
1599 pp->preserve_subject ? "\n" : " ");
1601 strbuf_grow(sb, title.len + 1024);
1603 strbuf_addstr(sb, pp->subject);
1604 if (needs_rfc2047_encoding(title.buf, title.len, RFC2047_SUBJECT))
1605 add_rfc2047(sb, title.buf, title.len,
1606 encoding, RFC2047_SUBJECT);
1608 strbuf_add_wrapped_bytes(sb, title.buf, title.len,
1609 -last_line_length(sb), 1, max_length);
1611 strbuf_addbuf(sb, &title);
1613 strbuf_addch(sb, '\n');
1615 if (need_8bit_cte == 0) {
1617 for (i = 0; i < pp->in_body_headers.nr; i++) {
1618 if (has_non_ascii(pp->in_body_headers.items[i].string)) {
1625 if (need_8bit_cte > 0) {
1626 const char *header_fmt =
1627 "MIME-Version: 1.0\n"
1628 "Content-Type: text/plain; charset=%s\n"
1629 "Content-Transfer-Encoding: 8bit\n";
1630 strbuf_addf(sb, header_fmt, encoding);
1632 if (pp->after_subject) {
1633 strbuf_addstr(sb, pp->after_subject);
1635 if (pp->fmt == CMIT_FMT_EMAIL) {
1636 strbuf_addch(sb, '\n');
1639 if (pp->in_body_headers.nr) {
1641 for (i = 0; i < pp->in_body_headers.nr; i++) {
1642 strbuf_addstr(sb, pp->in_body_headers.items[i].string);
1643 free(pp->in_body_headers.items[i].string);
1645 string_list_clear(&pp->in_body_headers, 0);
1646 strbuf_addch(sb, '\n');
1649 strbuf_release(&title);
1652 void pp_remainder(struct pretty_print_context *pp,
1659 const char *line = *msg_p;
1660 int linelen = get_one_line(line);
1666 if (is_empty_line(line, &linelen)) {
1669 if (pp->fmt == CMIT_FMT_SHORT)
1674 strbuf_grow(sb, linelen + indent + 20);
1676 memset(sb->buf + sb->len, ' ', indent);
1677 strbuf_setlen(sb, sb->len + indent);
1679 strbuf_add(sb, line, linelen);
1680 strbuf_addch(sb, '\n');
1684 void pretty_print_commit(struct pretty_print_context *pp,
1685 const struct commit *commit,
1688 unsigned long beginning_of_body;
1691 const char *reencoded;
1692 const char *encoding;
1693 int need_8bit_cte = pp->need_8bit_cte;
1695 if (pp->fmt == CMIT_FMT_USERFORMAT) {
1696 format_commit_message(commit, user_format, sb, pp);
1700 encoding = get_log_output_encoding();
1701 msg = reencoded = logmsg_reencode(commit, NULL, encoding);
1703 if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL)
1707 * We need to check and emit Content-type: to mark it
1708 * as 8-bit if we haven't done so.
1710 if (pp->fmt == CMIT_FMT_EMAIL && need_8bit_cte == 0) {
1713 for (in_body = i = 0; (ch = msg[i]); i++) {
1715 /* author could be non 7-bit ASCII but
1716 * the log may be so; skip over the
1717 * header part first.
1719 if (ch == '\n' && msg[i+1] == '\n')
1722 else if (non_ascii(ch)) {
1729 pp_header(pp, encoding, commit, &msg, sb);
1730 if (pp->fmt != CMIT_FMT_ONELINE && !pp->subject) {
1731 strbuf_addch(sb, '\n');
1734 /* Skip excess blank lines at the beginning of body, if any... */
1735 msg = skip_empty_lines(msg);
1737 /* These formats treat the title line specially. */
1738 if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL)
1739 pp_title_line(pp, &msg, sb, encoding, need_8bit_cte);
1741 beginning_of_body = sb->len;
1742 if (pp->fmt != CMIT_FMT_ONELINE)
1743 pp_remainder(pp, &msg, sb, indent);
1746 /* Make sure there is an EOLN for the non-oneline case */
1747 if (pp->fmt != CMIT_FMT_ONELINE)
1748 strbuf_addch(sb, '\n');
1751 * The caller may append additional body text in e-mail
1752 * format. Make sure we did not strip the blank line
1753 * between the header and the body.
1755 if (pp->fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
1756 strbuf_addch(sb, '\n');
1758 unuse_commit_buffer(commit, reencoded);
1761 void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit,
1764 struct pretty_print_context pp = {0};
1766 pretty_print_commit(&pp, commit, sb);