3 #include "interpolate.h"
8 static struct cmt_fmt_map {
13 { "raw", 1, CMIT_FMT_RAW },
14 { "medium", 1, CMIT_FMT_MEDIUM },
15 { "short", 1, CMIT_FMT_SHORT },
16 { "email", 1, CMIT_FMT_EMAIL },
17 { "full", 5, CMIT_FMT_FULL },
18 { "fuller", 5, CMIT_FMT_FULLER },
19 { "oneline", 1, CMIT_FMT_ONELINE },
20 { "format:", 7, CMIT_FMT_USERFORMAT},
23 static char *user_format;
25 enum cmit_fmt get_commit_format(const char *arg)
30 return CMIT_FMT_DEFAULT;
33 if (!prefixcmp(arg, "format:")) {
36 user_format = xstrdup(arg + 7);
37 return CMIT_FMT_USERFORMAT;
39 for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
40 if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) &&
41 !strncmp(arg, cmt_fmts[i].n, strlen(arg)))
45 die("invalid --pretty format: %s", arg);
49 * Generic support for pretty-printing the header
51 static int get_one_line(const char *msg)
66 /* High bit set, or ISO-2022-INT */
70 return ((ch & 0x80) || (ch == 0x1b));
73 static int is_rfc2047_special(char ch)
75 return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_'));
78 static void add_rfc2047(struct strbuf *sb, const char *line, int len,
83 for (i = 0; i < len; i++) {
87 if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
90 strbuf_add(sb, line, len);
94 strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
95 strbuf_addf(sb, "=?%s?q?", encoding);
96 for (i = last = 0; i < len; i++) {
97 unsigned ch = line[i] & 0xFF;
99 * We encode ' ' using '=20' even though rfc2047
100 * allows using '_' for readability. Unfortunately,
101 * many programs do not understand this and just
102 * leave the underscore in place.
104 if (is_rfc2047_special(ch) || ch == ' ') {
105 strbuf_add(sb, line + last, i - last);
106 strbuf_addf(sb, "=%02X", ch);
110 strbuf_add(sb, line + last, len - last);
111 strbuf_addstr(sb, "?=");
114 static void add_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
115 const char *line, enum date_mode dmode,
116 const char *encoding)
122 const char *filler = " ";
124 if (fmt == CMIT_FMT_ONELINE)
126 date = strchr(line, '>');
129 namelen = ++date - line;
130 time = strtoul(date, &date, 10);
131 tz = strtol(date, NULL, 10);
133 if (fmt == CMIT_FMT_EMAIL) {
134 char *name_tail = strchr(line, '<');
135 int display_name_length;
138 while (line < name_tail && isspace(name_tail[-1]))
140 display_name_length = name_tail - line;
142 strbuf_addstr(sb, "From: ");
143 add_rfc2047(sb, line, display_name_length, encoding);
144 strbuf_add(sb, name_tail, namelen - display_name_length);
145 strbuf_addch(sb, '\n');
147 strbuf_addf(sb, "%s: %.*s%.*s\n", what,
148 (fmt == CMIT_FMT_FULLER) ? 4 : 0,
149 filler, namelen, line);
152 case CMIT_FMT_MEDIUM:
153 strbuf_addf(sb, "Date: %s\n", show_date(time, tz, dmode));
156 strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822));
158 case CMIT_FMT_FULLER:
159 strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, dmode));
167 static int is_empty_line(const char *line, int *len_p)
170 while (len && isspace(line[len-1]))
176 static void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
177 const struct commit *commit, int abbrev)
179 struct commit_list *parent = commit->parents;
181 if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
182 !parent || !parent->next)
185 strbuf_addstr(sb, "Merge:");
188 struct commit *p = parent->item;
189 const char *hex = NULL;
192 hex = find_unique_abbrev(p->object.sha1, abbrev);
194 hex = sha1_to_hex(p->object.sha1);
195 dots = (abbrev && strlen(hex) != 40) ? "..." : "";
196 parent = parent->next;
198 strbuf_addf(sb, " %s%s", hex, dots);
200 strbuf_addch(sb, '\n');
203 static char *get_header(const struct commit *commit, const char *key)
205 int key_len = strlen(key);
206 const char *line = commit->buffer;
209 const char *eol = strchr(line, '\n'), *next;
214 eol = line + strlen(line);
218 if (eol - line > key_len &&
219 !strncmp(line, key, key_len) &&
220 line[key_len] == ' ') {
221 return xmemdupz(line + key_len + 1, eol - line - key_len - 1);
227 static char *replace_encoding_header(char *buf, const char *encoding)
233 /* guess if there is an encoding header before a \n\n */
234 while (strncmp(cp, "encoding ", strlen("encoding "))) {
235 cp = strchr(cp, '\n');
236 if (!cp || *++cp == '\n')
240 cp = strchr(cp, '\n');
242 return buf; /* should not happen but be defensive */
243 len = cp + 1 - (buf + start);
245 strbuf_init(&tmp, 0);
246 strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1);
247 if (is_encoding_utf8(encoding)) {
248 /* we have re-coded to UTF-8; drop the header */
249 strbuf_remove(&tmp, start, len);
251 /* just replaces XXXX in 'encoding XXXX\n' */
252 strbuf_splice(&tmp, start + strlen("encoding "),
253 len - strlen("encoding \n"),
254 encoding, strlen(encoding));
256 return strbuf_detach(&tmp, NULL);
259 static char *logmsg_reencode(const struct commit *commit,
260 const char *output_encoding)
262 static const char *utf8 = "utf-8";
263 const char *use_encoding;
267 if (!*output_encoding)
269 encoding = get_header(commit, "encoding");
270 use_encoding = encoding ? encoding : utf8;
271 if (!strcmp(use_encoding, output_encoding))
272 if (encoding) /* we'll strip encoding header later */
273 out = xstrdup(commit->buffer);
275 return NULL; /* nothing to do */
277 out = reencode_string(commit->buffer,
278 output_encoding, use_encoding);
280 out = replace_encoding_header(out, output_encoding);
286 static void fill_person(struct interp *table, const char *msg, int len)
288 int start, end, tz = 0;
293 for (end = 0; end < len && msg[end] != '<'; end++)
296 while (end > 0 && isspace(msg[end - 1]))
298 table[0].value = xmemdupz(msg, end);
304 for (end = start + 1; end < len && msg[end] != '>'; end++)
310 table[1].value = xmemdupz(msg + start, end - start);
313 for (start = end + 1; start < len && isspace(msg[start]); start++)
317 date = strtoul(msg + start, &ep, 10);
318 if (msg + start == ep)
321 table[5].value = xmemdupz(msg + start, ep - (msg + start));
324 for (start = ep - msg + 1; start < len && isspace(msg[start]); start++)
326 if (start + 1 < len) {
327 tz = strtoul(msg + start + 1, NULL, 10);
328 if (msg[start] == '-')
332 interp_set_entry(table, 2, show_date(date, tz, DATE_NORMAL));
333 interp_set_entry(table, 3, show_date(date, tz, DATE_RFC2822));
334 interp_set_entry(table, 4, show_date(date, tz, DATE_RELATIVE));
335 interp_set_entry(table, 6, show_date(date, tz, DATE_ISO8601));
338 void format_commit_message(const struct commit *commit,
339 const void *format, struct strbuf *sb)
341 struct interp table[] = {
342 { "%H" }, /* commit hash */
343 { "%h" }, /* abbreviated commit hash */
344 { "%T" }, /* tree hash */
345 { "%t" }, /* abbreviated tree hash */
346 { "%P" }, /* parent hashes */
347 { "%p" }, /* abbreviated parent hashes */
348 { "%an" }, /* author name */
349 { "%ae" }, /* author email */
350 { "%ad" }, /* author date */
351 { "%aD" }, /* author date, RFC2822 style */
352 { "%ar" }, /* author date, relative */
353 { "%at" }, /* author date, UNIX timestamp */
354 { "%ai" }, /* author date, ISO 8601 */
355 { "%cn" }, /* committer name */
356 { "%ce" }, /* committer email */
357 { "%cd" }, /* committer date */
358 { "%cD" }, /* committer date, RFC2822 style */
359 { "%cr" }, /* committer date, relative */
360 { "%ct" }, /* committer date, UNIX timestamp */
361 { "%ci" }, /* committer date, ISO 8601 */
362 { "%e" }, /* encoding */
363 { "%s" }, /* subject */
365 { "%Cred" }, /* red */
366 { "%Cgreen" }, /* green */
367 { "%Cblue" }, /* blue */
368 { "%Creset" }, /* reset color */
369 { "%n" }, /* newline */
370 { "%m" }, /* left/right/bottom */
373 IHASH = 0, IHASH_ABBREV,
375 IPARENTS, IPARENTS_ABBREV,
376 IAUTHOR_NAME, IAUTHOR_EMAIL,
377 IAUTHOR_DATE, IAUTHOR_DATE_RFC2822, IAUTHOR_DATE_RELATIVE,
378 IAUTHOR_TIMESTAMP, IAUTHOR_ISO8601,
379 ICOMMITTER_NAME, ICOMMITTER_EMAIL,
380 ICOMMITTER_DATE, ICOMMITTER_DATE_RFC2822,
381 ICOMMITTER_DATE_RELATIVE, ICOMMITTER_TIMESTAMP,
386 IRED, IGREEN, IBLUE, IRESET_COLOR,
390 struct commit_list *p;
394 enum { HEADER, SUBJECT, BODY } state;
395 const char *msg = commit->buffer;
397 if (ILEFT_RIGHT + 1 != ARRAY_SIZE(table))
398 die("invalid interp table!");
400 /* these are independent of the commit */
401 interp_set_entry(table, IRED, "\033[31m");
402 interp_set_entry(table, IGREEN, "\033[32m");
403 interp_set_entry(table, IBLUE, "\033[34m");
404 interp_set_entry(table, IRESET_COLOR, "\033[m");
405 interp_set_entry(table, INEWLINE, "\n");
407 /* these depend on the commit */
408 if (!commit->object.parsed)
409 parse_object(commit->object.sha1);
410 interp_set_entry(table, IHASH, sha1_to_hex(commit->object.sha1));
411 interp_set_entry(table, IHASH_ABBREV,
412 find_unique_abbrev(commit->object.sha1,
414 interp_set_entry(table, ITREE, sha1_to_hex(commit->tree->object.sha1));
415 interp_set_entry(table, ITREE_ABBREV,
416 find_unique_abbrev(commit->tree->object.sha1,
418 interp_set_entry(table, ILEFT_RIGHT,
419 (commit->object.flags & BOUNDARY)
421 : (commit->object.flags & SYMMETRIC_LEFT)
426 for (i = 0, p = commit->parents;
427 p && i < sizeof(parents) - 1;
429 i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
430 sha1_to_hex(p->item->object.sha1));
431 interp_set_entry(table, IPARENTS, parents + 1);
434 for (i = 0, p = commit->parents;
435 p && i < sizeof(parents) - 1;
437 i += snprintf(parents + i, sizeof(parents) - i - 1, " %s",
438 find_unique_abbrev(p->item->object.sha1,
440 interp_set_entry(table, IPARENTS_ABBREV, parents + 1);
442 for (i = 0, state = HEADER; msg[i] && state < BODY; i++) {
444 for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
447 if (state == SUBJECT) {
448 table[ISUBJECT].value = xmemdupz(msg + i, eol - i);
453 /* strip empty lines */
454 while (msg[eol + 1] == '\n')
456 } else if (!prefixcmp(msg + i, "author "))
457 fill_person(table + IAUTHOR_NAME,
458 msg + i + 7, eol - i - 7);
459 else if (!prefixcmp(msg + i, "committer "))
460 fill_person(table + ICOMMITTER_NAME,
461 msg + i + 10, eol - i - 10);
462 else if (!prefixcmp(msg + i, "encoding "))
463 table[IENCODING].value =
464 xmemdupz(msg + i + 9, eol - i - 9);
468 table[IBODY].value = xstrdup(msg + i);
470 len = interpolate(sb->buf + sb->len, strbuf_avail(sb),
471 format, table, ARRAY_SIZE(table));
472 if (len > strbuf_avail(sb)) {
473 strbuf_grow(sb, len);
474 interpolate(sb->buf + sb->len, strbuf_avail(sb) + 1,
475 format, table, ARRAY_SIZE(table));
477 strbuf_setlen(sb, sb->len + len);
478 interp_clear_table(table, ARRAY_SIZE(table));
481 static void pp_header(enum cmit_fmt fmt,
483 enum date_mode dmode,
484 const char *encoding,
485 const struct commit *commit,
489 int parents_shown = 0;
492 const char *line = *msg_p;
493 int linelen = get_one_line(*msg_p);
503 if (fmt == CMIT_FMT_RAW) {
504 strbuf_add(sb, line, linelen);
508 if (!memcmp(line, "parent ", 7)) {
510 die("bad parent line in commit");
514 if (!parents_shown) {
515 struct commit_list *parent;
517 for (parent = commit->parents, num = 0;
519 parent = parent->next, num++)
521 /* with enough slop */
522 strbuf_grow(sb, num * 50 + 20);
523 add_merge_info(fmt, sb, commit, abbrev);
528 * MEDIUM == DEFAULT shows only author with dates.
529 * FULL shows both authors but not dates.
530 * FULLER shows both authors and dates.
532 if (!memcmp(line, "author ", 7)) {
533 strbuf_grow(sb, linelen + 80);
534 add_user_info("Author", fmt, sb, line + 7, dmode, encoding);
536 if (!memcmp(line, "committer ", 10) &&
537 (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) {
538 strbuf_grow(sb, linelen + 80);
539 add_user_info("Commit", fmt, sb, line + 10, dmode, encoding);
544 static void pp_title_line(enum cmit_fmt fmt,
548 const char *after_subject,
549 const char *encoding,
554 strbuf_init(&title, 80);
557 const char *line = *msg_p;
558 int linelen = get_one_line(line);
561 if (!linelen || is_empty_line(line, &linelen))
564 strbuf_grow(&title, linelen + 2);
566 if (fmt == CMIT_FMT_EMAIL) {
567 strbuf_addch(&title, '\n');
569 strbuf_addch(&title, ' ');
571 strbuf_add(&title, line, linelen);
574 strbuf_grow(sb, title.len + 1024);
576 strbuf_addstr(sb, subject);
577 add_rfc2047(sb, title.buf, title.len, encoding);
579 strbuf_addbuf(sb, &title);
581 strbuf_addch(sb, '\n');
583 if (plain_non_ascii) {
584 const char *header_fmt =
585 "MIME-Version: 1.0\n"
586 "Content-Type: text/plain; charset=%s\n"
587 "Content-Transfer-Encoding: 8bit\n";
588 strbuf_addf(sb, header_fmt, encoding);
591 strbuf_addstr(sb, after_subject);
593 if (fmt == CMIT_FMT_EMAIL) {
594 strbuf_addch(sb, '\n');
596 strbuf_release(&title);
599 static void pp_remainder(enum cmit_fmt fmt,
606 const char *line = *msg_p;
607 int linelen = get_one_line(line);
613 if (is_empty_line(line, &linelen)) {
616 if (fmt == CMIT_FMT_SHORT)
621 strbuf_grow(sb, linelen + indent + 20);
623 memset(sb->buf + sb->len, ' ', indent);
624 strbuf_setlen(sb, sb->len + indent);
626 strbuf_add(sb, line, linelen);
627 strbuf_addch(sb, '\n');
631 void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
632 struct strbuf *sb, int abbrev,
633 const char *subject, const char *after_subject,
634 enum date_mode dmode, int plain_non_ascii)
636 unsigned long beginning_of_body;
638 const char *msg = commit->buffer;
640 const char *encoding;
642 if (fmt == CMIT_FMT_USERFORMAT) {
643 format_commit_message(commit, user_format, sb);
647 encoding = (git_log_output_encoding
648 ? git_log_output_encoding
649 : git_commit_encoding);
652 reencoded = logmsg_reencode(commit, encoding);
657 if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
660 /* After-subject is used to pass in Content-Type: multipart
661 * MIME header; in that case we do not have to do the
662 * plaintext content type even if the commit message has
663 * non 7-bit ASCII character. Otherwise, check if we need
664 * to say this is not a 7-bit ASCII.
666 if (fmt == CMIT_FMT_EMAIL && !after_subject) {
669 for (in_body = i = 0; (ch = msg[i]); i++) {
671 /* author could be non 7-bit ASCII but
672 * the log may be so; skip over the
675 if (ch == '\n' && msg[i+1] == '\n')
678 else if (non_ascii(ch)) {
685 pp_header(fmt, abbrev, dmode, encoding, commit, &msg, sb);
686 if (fmt != CMIT_FMT_ONELINE && !subject) {
687 strbuf_addch(sb, '\n');
690 /* Skip excess blank lines at the beginning of body, if any... */
692 int linelen = get_one_line(msg);
696 if (!is_empty_line(msg, &ll))
701 /* These formats treat the title line specially. */
702 if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
703 pp_title_line(fmt, &msg, sb, subject,
704 after_subject, encoding, plain_non_ascii);
706 beginning_of_body = sb->len;
707 if (fmt != CMIT_FMT_ONELINE)
708 pp_remainder(fmt, &msg, sb, indent);
711 /* Make sure there is an EOLN for the non-oneline case */
712 if (fmt != CMIT_FMT_ONELINE)
713 strbuf_addch(sb, '\n');
716 * The caller may append additional body text in e-mail
717 * format. Make sure we did not strip the blank line
718 * between the header and the body.
720 if (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
721 strbuf_addch(sb, '\n');