| #include "cache.h" |
| #include "commit.h" |
| #include "utf8.h" |
| #include "diff.h" |
| #include "revision.h" |
| #include "string-list.h" |
| #include "mailmap.h" |
| #include "log-tree.h" |
| #include "notes.h" |
| #include "color.h" |
| #include "reflog-walk.h" |
| |
| static char *user_format; |
| static struct cmt_fmt_map { |
| const char *name; |
| enum cmit_fmt format; |
| int is_tformat; |
| int is_alias; |
| const char *user_format; |
| } *commit_formats; |
| static size_t builtin_formats_len; |
| static size_t commit_formats_len; |
| static size_t commit_formats_alloc; |
| static struct cmt_fmt_map *find_commit_format(const char *sought); |
| |
| static void save_user_format(struct rev_info *rev, const char *cp, int is_tformat) |
| { |
| free(user_format); |
| user_format = xstrdup(cp); |
| if (is_tformat) |
| rev->use_terminator = 1; |
| rev->commit_format = CMIT_FMT_USERFORMAT; |
| } |
| |
| static int git_pretty_formats_config(const char *var, const char *value, void *cb) |
| { |
| struct cmt_fmt_map *commit_format = NULL; |
| const char *name; |
| const char *fmt; |
| int i; |
| |
| if (prefixcmp(var, "pretty.")) |
| return 0; |
| |
| name = var + strlen("pretty."); |
| for (i = 0; i < builtin_formats_len; i++) { |
| if (!strcmp(commit_formats[i].name, name)) |
| return 0; |
| } |
| |
| for (i = builtin_formats_len; i < commit_formats_len; i++) { |
| if (!strcmp(commit_formats[i].name, name)) { |
| commit_format = &commit_formats[i]; |
| break; |
| } |
| } |
| |
| if (!commit_format) { |
| ALLOC_GROW(commit_formats, commit_formats_len+1, |
| commit_formats_alloc); |
| commit_format = &commit_formats[commit_formats_len]; |
| memset(commit_format, 0, sizeof(*commit_format)); |
| commit_formats_len++; |
| } |
| |
| commit_format->name = xstrdup(name); |
| commit_format->format = CMIT_FMT_USERFORMAT; |
| git_config_string(&fmt, var, value); |
| if (!prefixcmp(fmt, "format:") || !prefixcmp(fmt, "tformat:")) { |
| commit_format->is_tformat = fmt[0] == 't'; |
| fmt = strchr(fmt, ':') + 1; |
| } else if (strchr(fmt, '%')) |
| commit_format->is_tformat = 1; |
| else |
| commit_format->is_alias = 1; |
| commit_format->user_format = fmt; |
| |
| return 0; |
| } |
| |
| static void setup_commit_formats(void) |
| { |
| struct cmt_fmt_map builtin_formats[] = { |
| { "raw", CMIT_FMT_RAW, 0 }, |
| { "medium", CMIT_FMT_MEDIUM, 0 }, |
| { "short", CMIT_FMT_SHORT, 0 }, |
| { "email", CMIT_FMT_EMAIL, 0 }, |
| { "fuller", CMIT_FMT_FULLER, 0 }, |
| { "full", CMIT_FMT_FULL, 0 }, |
| { "oneline", CMIT_FMT_ONELINE, 1 } |
| }; |
| commit_formats_len = ARRAY_SIZE(builtin_formats); |
| builtin_formats_len = commit_formats_len; |
| ALLOC_GROW(commit_formats, commit_formats_len, commit_formats_alloc); |
| memcpy(commit_formats, builtin_formats, |
| sizeof(*builtin_formats)*ARRAY_SIZE(builtin_formats)); |
| |
| git_config(git_pretty_formats_config, NULL); |
| } |
| |
| static struct cmt_fmt_map *find_commit_format_recursive(const char *sought, |
| const char *original, |
| int num_redirections) |
| { |
| struct cmt_fmt_map *found = NULL; |
| size_t found_match_len = 0; |
| int i; |
| |
| if (num_redirections >= commit_formats_len) |
| die("invalid --pretty format: " |
| "'%s' references an alias which points to itself", |
| original); |
| |
| for (i = 0; i < commit_formats_len; i++) { |
| size_t match_len; |
| |
| if (prefixcmp(commit_formats[i].name, sought)) |
| continue; |
| |
| match_len = strlen(commit_formats[i].name); |
| if (found == NULL || found_match_len > match_len) { |
| found = &commit_formats[i]; |
| found_match_len = match_len; |
| } |
| } |
| |
| if (found && found->is_alias) { |
| found = find_commit_format_recursive(found->user_format, |
| original, |
| num_redirections+1); |
| } |
| |
| return found; |
| } |
| |
| static struct cmt_fmt_map *find_commit_format(const char *sought) |
| { |
| if (!commit_formats) |
| setup_commit_formats(); |
| |
| return find_commit_format_recursive(sought, sought, 0); |
| } |
| |
| void get_commit_format(const char *arg, struct rev_info *rev) |
| { |
| struct cmt_fmt_map *commit_format; |
| |
| rev->use_terminator = 0; |
| if (!arg || !*arg) { |
| rev->commit_format = CMIT_FMT_DEFAULT; |
| return; |
| } |
| if (!prefixcmp(arg, "format:") || !prefixcmp(arg, "tformat:")) { |
| save_user_format(rev, strchr(arg, ':') + 1, arg[0] == 't'); |
| return; |
| } |
| |
| if (strchr(arg, '%')) { |
| save_user_format(rev, arg, 1); |
| return; |
| } |
| |
| commit_format = find_commit_format(arg); |
| if (!commit_format) |
| die("invalid --pretty format: %s", arg); |
| |
| rev->commit_format = commit_format->format; |
| rev->use_terminator = commit_format->is_tformat; |
| if (commit_format->format == CMIT_FMT_USERFORMAT) { |
| save_user_format(rev, commit_format->user_format, |
| commit_format->is_tformat); |
| } |
| } |
| |
| /* |
| * Generic support for pretty-printing the header |
| */ |
| static int get_one_line(const char *msg) |
| { |
| int ret = 0; |
| |
| for (;;) { |
| char c = *msg++; |
| if (!c) |
| break; |
| ret++; |
| if (c == '\n') |
| break; |
| } |
| return ret; |
| } |
| |
| /* High bit set, or ISO-2022-INT */ |
| static int non_ascii(int ch) |
| { |
| return !isascii(ch) || ch == '\033'; |
| } |
| |
| int has_non_ascii(const char *s) |
| { |
| int ch; |
| if (!s) |
| return 0; |
| while ((ch = *s++) != '\0') { |
| if (non_ascii(ch)) |
| return 1; |
| } |
| return 0; |
| } |
| |
| static int is_rfc822_special(char ch) |
| { |
| switch (ch) { |
| case '(': |
| case ')': |
| case '<': |
| case '>': |
| case '[': |
| case ']': |
| case ':': |
| case ';': |
| case '@': |
| case ',': |
| case '.': |
| case '"': |
| case '\\': |
| return 1; |
| default: |
| return 0; |
| } |
| } |
| |
| static int has_rfc822_specials(const char *s, int len) |
| { |
| int i; |
| for (i = 0; i < len; i++) |
| if (is_rfc822_special(s[i])) |
| return 1; |
| return 0; |
| } |
| |
| static void add_rfc822_quoted(struct strbuf *out, const char *s, int len) |
| { |
| int i; |
| |
| /* just a guess, we may have to also backslash-quote */ |
| strbuf_grow(out, len + 2); |
| |
| strbuf_addch(out, '"'); |
| for (i = 0; i < len; i++) { |
| switch (s[i]) { |
| case '"': |
| case '\\': |
| strbuf_addch(out, '\\'); |
| /* fall through */ |
| default: |
| strbuf_addch(out, s[i]); |
| } |
| } |
| strbuf_addch(out, '"'); |
| } |
| |
| static int is_rfc2047_special(char ch) |
| { |
| return (non_ascii(ch) || (ch == '=') || (ch == '?') || (ch == '_')); |
| } |
| |
| static void add_rfc2047(struct strbuf *sb, const char *line, int len, |
| const char *encoding) |
| { |
| static const int max_length = 78; /* per rfc2822 */ |
| int i; |
| int line_len; |
| |
| /* How many bytes are already used on the current line? */ |
| for (i = sb->len - 1; i >= 0; i--) |
| if (sb->buf[i] == '\n') |
| break; |
| line_len = sb->len - (i+1); |
| |
| for (i = 0; i < len; i++) { |
| int ch = line[i]; |
| if (non_ascii(ch) || ch == '\n') |
| goto needquote; |
| if ((i + 1 < len) && (ch == '=' && line[i+1] == '?')) |
| goto needquote; |
| } |
| strbuf_add_wrapped_bytes(sb, line, len, 0, 1, max_length - line_len); |
| return; |
| |
| needquote: |
| strbuf_grow(sb, len * 3 + strlen(encoding) + 100); |
| strbuf_addf(sb, "=?%s?q?", encoding); |
| line_len += strlen(encoding) + 5; /* 5 for =??q? */ |
| for (i = 0; i < len; i++) { |
| unsigned ch = line[i] & 0xFF; |
| |
| if (line_len >= max_length - 2) { |
| strbuf_addf(sb, "?=\n =?%s?q?", encoding); |
| line_len = strlen(encoding) + 5 + 1; /* =??q? plus SP */ |
| } |
| |
| /* |
| * We encode ' ' using '=20' even though rfc2047 |
| * allows using '_' for readability. Unfortunately, |
| * many programs do not understand this and just |
| * leave the underscore in place. |
| */ |
| if (is_rfc2047_special(ch) || ch == ' ' || ch == '\n') { |
| strbuf_addf(sb, "=%02X", ch); |
| line_len += 3; |
| } |
| else { |
| strbuf_addch(sb, ch); |
| line_len++; |
| } |
| } |
| strbuf_addstr(sb, "?="); |
| } |
| |
| void pp_user_info(const struct pretty_print_context *pp, |
| const char *what, struct strbuf *sb, |
| const char *line, const char *encoding) |
| { |
| char *date; |
| int namelen; |
| unsigned long time; |
| int tz; |
| |
| if (pp->fmt == CMIT_FMT_ONELINE) |
| return; |
| date = strchr(line, '>'); |
| if (!date) |
| return; |
| namelen = ++date - line; |
| time = strtoul(date, &date, 10); |
| tz = strtol(date, NULL, 10); |
| |
| if (pp->fmt == CMIT_FMT_EMAIL) { |
| char *name_tail = strchr(line, '<'); |
| int display_name_length; |
| int final_line; |
| if (!name_tail) |
| return; |
| while (line < name_tail && isspace(name_tail[-1])) |
| name_tail--; |
| display_name_length = name_tail - line; |
| strbuf_addstr(sb, "From: "); |
| if (!has_rfc822_specials(line, display_name_length)) { |
| add_rfc2047(sb, line, display_name_length, encoding); |
| } else { |
| struct strbuf quoted = STRBUF_INIT; |
| add_rfc822_quoted("ed, line, display_name_length); |
| add_rfc2047(sb, quoted.buf, quoted.len, encoding); |
| strbuf_release("ed); |
| } |
| for (final_line = 0; final_line < sb->len; final_line++) |
| if (sb->buf[sb->len - final_line - 1] == '\n') |
| break; |
| if (namelen - display_name_length + final_line > 78) { |
| strbuf_addch(sb, '\n'); |
| if (!isspace(name_tail[0])) |
| strbuf_addch(sb, ' '); |
| } |
| strbuf_add(sb, name_tail, namelen - display_name_length); |
| strbuf_addch(sb, '\n'); |
| } else { |
| strbuf_addf(sb, "%s: %.*s%.*s\n", what, |
| (pp->fmt == CMIT_FMT_FULLER) ? 4 : 0, |
| " ", namelen, line); |
| } |
| switch (pp->fmt) { |
| case CMIT_FMT_MEDIUM: |
| strbuf_addf(sb, "Date: %s\n", show_date(time, tz, pp->date_mode)); |
| break; |
| case CMIT_FMT_EMAIL: |
| strbuf_addf(sb, "Date: %s\n", show_date(time, tz, DATE_RFC2822)); |
| break; |
| case CMIT_FMT_FULLER: |
| strbuf_addf(sb, "%sDate: %s\n", what, show_date(time, tz, pp->date_mode)); |
| break; |
| default: |
| /* notin' */ |
| break; |
| } |
| } |
| |
| static int is_empty_line(const char *line, int *len_p) |
| { |
| int len = *len_p; |
| while (len && isspace(line[len-1])) |
| len--; |
| *len_p = len; |
| return !len; |
| } |
| |
| static const char *skip_empty_lines(const char *msg) |
| { |
| for (;;) { |
| int linelen = get_one_line(msg); |
| int ll = linelen; |
| if (!linelen) |
| break; |
| if (!is_empty_line(msg, &ll)) |
| break; |
| msg += linelen; |
| } |
| return msg; |
| } |
| |
| static void add_merge_info(const struct pretty_print_context *pp, |
| struct strbuf *sb, const struct commit *commit) |
| { |
| struct commit_list *parent = commit->parents; |
| |
| if ((pp->fmt == CMIT_FMT_ONELINE) || (pp->fmt == CMIT_FMT_EMAIL) || |
| !parent || !parent->next) |
| return; |
| |
| strbuf_addstr(sb, "Merge:"); |
| |
| while (parent) { |
| struct commit *p = parent->item; |
| const char *hex = NULL; |
| if (pp->abbrev) |
| hex = find_unique_abbrev(p->object.sha1, pp->abbrev); |
| if (!hex) |
| hex = sha1_to_hex(p->object.sha1); |
| parent = parent->next; |
| |
| strbuf_addf(sb, " %s", hex); |
| } |
| strbuf_addch(sb, '\n'); |
| } |
| |
| static char *get_header(const struct commit *commit, const char *key) |
| { |
| int key_len = strlen(key); |
| const char *line = commit->buffer; |
| |
| for (;;) { |
| const char *eol = strchr(line, '\n'), *next; |
| |
| if (line == eol) |
| return NULL; |
| if (!eol) { |
| eol = line + strlen(line); |
| next = NULL; |
| } else |
| next = eol + 1; |
| if (eol - line > key_len && |
| !strncmp(line, key, key_len) && |
| line[key_len] == ' ') { |
| return xmemdupz(line + key_len + 1, eol - line - key_len - 1); |
| } |
| line = next; |
| } |
| } |
| |
| static char *replace_encoding_header(char *buf, const char *encoding) |
| { |
| struct strbuf tmp = STRBUF_INIT; |
| size_t start, len; |
| char *cp = buf; |
| |
| /* guess if there is an encoding header before a \n\n */ |
| while (strncmp(cp, "encoding ", strlen("encoding "))) { |
| cp = strchr(cp, '\n'); |
| if (!cp || *++cp == '\n') |
| return buf; |
| } |
| start = cp - buf; |
| cp = strchr(cp, '\n'); |
| if (!cp) |
| return buf; /* should not happen but be defensive */ |
| len = cp + 1 - (buf + start); |
| |
| strbuf_attach(&tmp, buf, strlen(buf), strlen(buf) + 1); |
| if (is_encoding_utf8(encoding)) { |
| /* we have re-coded to UTF-8; drop the header */ |
| strbuf_remove(&tmp, start, len); |
| } else { |
| /* just replaces XXXX in 'encoding XXXX\n' */ |
| strbuf_splice(&tmp, start + strlen("encoding "), |
| len - strlen("encoding \n"), |
| encoding, strlen(encoding)); |
| } |
| return strbuf_detach(&tmp, NULL); |
| } |
| |
| char *logmsg_reencode(const struct commit *commit, |
| const char *output_encoding) |
| { |
| static const char *utf8 = "UTF-8"; |
| const char *use_encoding; |
| char *encoding; |
| char *out; |
| |
| if (!*output_encoding) |
| return NULL; |
| encoding = get_header(commit, "encoding"); |
| use_encoding = encoding ? encoding : utf8; |
| if (!strcmp(use_encoding, output_encoding)) |
| if (encoding) /* we'll strip encoding header later */ |
| out = xstrdup(commit->buffer); |
| else |
| return NULL; /* nothing to do */ |
| else |
| out = reencode_string(commit->buffer, |
| output_encoding, use_encoding); |
| if (out) |
| out = replace_encoding_header(out, output_encoding); |
| |
| free(encoding); |
| return out; |
| } |
| |
| static int mailmap_name(char *email, int email_len, char *name, int name_len) |
| { |
| static struct string_list *mail_map; |
| if (!mail_map) { |
| mail_map = xcalloc(1, sizeof(*mail_map)); |
| read_mailmap(mail_map, NULL); |
| } |
| return mail_map->nr && map_user(mail_map, email, email_len, name, name_len); |
| } |
| |
| static size_t format_person_part(struct strbuf *sb, char part, |
| const char *msg, int len, enum date_mode dmode) |
| { |
| /* currently all placeholders have same length */ |
| const int placeholder_len = 2; |
| int start, end, tz = 0; |
| unsigned long date = 0; |
| char *ep; |
| const char *name_start, *name_end, *mail_start, *mail_end, *msg_end = msg+len; |
| char person_name[1024]; |
| char person_mail[1024]; |
| |
| /* advance 'end' to point to email start delimiter */ |
| for (end = 0; end < len && msg[end] != '<'; end++) |
| ; /* do nothing */ |
| |
| /* |
| * When end points at the '<' that we found, it should have |
| * matching '>' later, which means 'end' must be strictly |
| * below len - 1. |
| */ |
| if (end >= len - 2) |
| goto skip; |
| |
| /* Seek for both name and email part */ |
| name_start = msg; |
| name_end = msg+end; |
| while (name_end > name_start && isspace(*(name_end-1))) |
| name_end--; |
| mail_start = msg+end+1; |
| mail_end = mail_start; |
| while (mail_end < msg_end && *mail_end != '>') |
| mail_end++; |
| if (mail_end == msg_end) |
| goto skip; |
| end = mail_end-msg; |
| |
| if (part == 'N' || part == 'E') { /* mailmap lookup */ |
| strlcpy(person_name, name_start, name_end-name_start+1); |
| strlcpy(person_mail, mail_start, mail_end-mail_start+1); |
| mailmap_name(person_mail, sizeof(person_mail), person_name, sizeof(person_name)); |
| name_start = person_name; |
| name_end = name_start + strlen(person_name); |
| mail_start = person_mail; |
| mail_end = mail_start + strlen(person_mail); |
| } |
| if (part == 'n' || part == 'N') { /* name */ |
| strbuf_add(sb, name_start, name_end-name_start); |
| return placeholder_len; |
| } |
| if (part == 'e' || part == 'E') { /* email */ |
| strbuf_add(sb, mail_start, mail_end-mail_start); |
| return placeholder_len; |
| } |
| |
| /* advance 'start' to point to date start delimiter */ |
| for (start = end + 1; start < len && isspace(msg[start]); start++) |
| ; /* do nothing */ |
| if (start >= len) |
| goto skip; |
| date = strtoul(msg + start, &ep, 10); |
| if (msg + start == ep) |
| goto skip; |
| |
| if (part == 't') { /* date, UNIX timestamp */ |
| strbuf_add(sb, msg + start, ep - (msg + start)); |
| return placeholder_len; |
| } |
| |
| /* parse tz */ |
| for (start = ep - msg + 1; start < len && isspace(msg[start]); start++) |
| ; /* do nothing */ |
| if (start + 1 < len) { |
| tz = strtoul(msg + start + 1, NULL, 10); |
| if (msg[start] == '-') |
| tz = -tz; |
| } |
| |
| switch (part) { |
| case 'd': /* date */ |
| strbuf_addstr(sb, show_date(date, tz, dmode)); |
| return placeholder_len; |
| case 'D': /* date, RFC2822 style */ |
| strbuf_addstr(sb, show_date(date, tz, DATE_RFC2822)); |
| return placeholder_len; |
| case 'r': /* date, relative */ |
| strbuf_addstr(sb, show_date(date, tz, DATE_RELATIVE)); |
| return placeholder_len; |
| case 'i': /* date, ISO 8601 */ |
| strbuf_addstr(sb, show_date(date, tz, DATE_ISO8601)); |
| return placeholder_len; |
| } |
| |
| skip: |
| /* |
| * bogus commit, 'sb' cannot be updated, but we still need to |
| * compute a valid return value. |
| */ |
| if (part == 'n' || part == 'e' || part == 't' || part == 'd' |
| || part == 'D' || part == 'r' || part == 'i') |
| return placeholder_len; |
| |
| return 0; /* unknown placeholder */ |
| } |
| |
| struct chunk { |
| size_t off; |
| size_t len; |
| }; |
| |
| struct format_commit_context { |
| const struct commit *commit; |
| const struct pretty_print_context *pretty_ctx; |
| unsigned commit_header_parsed:1; |
| unsigned commit_message_parsed:1; |
| char *message; |
| size_t width, indent1, indent2; |
| |
| /* These offsets are relative to the start of the commit message. */ |
| struct chunk author; |
| struct chunk committer; |
| struct chunk encoding; |
| size_t message_off; |
| size_t subject_off; |
| size_t body_off; |
| |
| /* The following ones are relative to the result struct strbuf. */ |
| struct chunk abbrev_commit_hash; |
| struct chunk abbrev_tree_hash; |
| struct chunk abbrev_parent_hashes; |
| size_t wrap_start; |
| }; |
| |
| static int add_again(struct strbuf *sb, struct chunk *chunk) |
| { |
| if (chunk->len) { |
| strbuf_adddup(sb, chunk->off, chunk->len); |
| return 1; |
| } |
| |
| /* |
| * We haven't seen this chunk before. Our caller is surely |
| * going to add it the hard way now. Remember the most likely |
| * start of the to-be-added chunk: the current end of the |
| * struct strbuf. |
| */ |
| chunk->off = sb->len; |
| return 0; |
| } |
| |
| static void parse_commit_header(struct format_commit_context *context) |
| { |
| const char *msg = context->message; |
| int i; |
| |
| for (i = 0; msg[i]; i++) { |
| int eol; |
| for (eol = i; msg[eol] && msg[eol] != '\n'; eol++) |
| ; /* do nothing */ |
| |
| if (i == eol) { |
| break; |
| } else if (!prefixcmp(msg + i, "author ")) { |
| context->author.off = i + 7; |
| context->author.len = eol - i - 7; |
| } else if (!prefixcmp(msg + i, "committer ")) { |
| context->committer.off = i + 10; |
| context->committer.len = eol - i - 10; |
| } else if (!prefixcmp(msg + i, "encoding ")) { |
| context->encoding.off = i + 9; |
| context->encoding.len = eol - i - 9; |
| } |
| i = eol; |
| } |
| context->message_off = i; |
| context->commit_header_parsed = 1; |
| } |
| |
| static int istitlechar(char c) |
| { |
| return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || |
| (c >= '0' && c <= '9') || c == '.' || c == '_'; |
| } |
| |
| static void format_sanitized_subject(struct strbuf *sb, const char *msg) |
| { |
| size_t trimlen; |
| size_t start_len = sb->len; |
| int space = 2; |
| |
| for (; *msg && *msg != '\n'; msg++) { |
| if (istitlechar(*msg)) { |
| if (space == 1) |
| strbuf_addch(sb, '-'); |
| space = 0; |
| strbuf_addch(sb, *msg); |
| if (*msg == '.') |
| while (*(msg+1) == '.') |
| msg++; |
| } else |
| space |= 1; |
| } |
| |
| /* trim any trailing '.' or '-' characters */ |
| trimlen = 0; |
| while (sb->len - trimlen > start_len && |
| (sb->buf[sb->len - 1 - trimlen] == '.' |
| || sb->buf[sb->len - 1 - trimlen] == '-')) |
| trimlen++; |
| strbuf_remove(sb, sb->len - trimlen, trimlen); |
| } |
| |
| const char *format_subject(struct strbuf *sb, const char *msg, |
| const char *line_separator) |
| { |
| int first = 1; |
| |
| for (;;) { |
| const char *line = msg; |
| int linelen = get_one_line(line); |
| |
| msg += linelen; |
| if (!linelen || is_empty_line(line, &linelen)) |
| break; |
| |
| if (!sb) |
| continue; |
| strbuf_grow(sb, linelen + 2); |
| if (!first) |
| strbuf_addstr(sb, line_separator); |
| strbuf_add(sb, line, linelen); |
| first = 0; |
| } |
| return msg; |
| } |
| |
| static void parse_commit_message(struct format_commit_context *c) |
| { |
| const char *msg = c->message + c->message_off; |
| const char *start = c->message; |
| |
| msg = skip_empty_lines(msg); |
| c->subject_off = msg - start; |
| |
| msg = format_subject(NULL, msg, NULL); |
| msg = skip_empty_lines(msg); |
| c->body_off = msg - start; |
| |
| c->commit_message_parsed = 1; |
| } |
| |
| static void format_decoration(struct strbuf *sb, const struct commit *commit) |
| { |
| struct name_decoration *d; |
| const char *prefix = " ("; |
| |
| load_ref_decorations(DECORATE_SHORT_REFS); |
| d = lookup_decoration(&name_decoration, &commit->object); |
| while (d) { |
| strbuf_addstr(sb, prefix); |
| prefix = ", "; |
| strbuf_addstr(sb, d->name); |
| d = d->next; |
| } |
| if (prefix[0] == ',') |
| strbuf_addch(sb, ')'); |
| } |
| |
| static void strbuf_wrap(struct strbuf *sb, size_t pos, |
| size_t width, size_t indent1, size_t indent2) |
| { |
| struct strbuf tmp = STRBUF_INIT; |
| |
| if (pos) |
| strbuf_add(&tmp, sb->buf, pos); |
| strbuf_add_wrapped_text(&tmp, sb->buf + pos, |
| (int) indent1, (int) indent2, (int) width); |
| strbuf_swap(&tmp, sb); |
| strbuf_release(&tmp); |
| } |
| |
| static void rewrap_message_tail(struct strbuf *sb, |
| struct format_commit_context *c, |
| size_t new_width, size_t new_indent1, |
| size_t new_indent2) |
| { |
| if (c->width == new_width && c->indent1 == new_indent1 && |
| c->indent2 == new_indent2) |
| return; |
| if (c->wrap_start < sb->len) |
| strbuf_wrap(sb, c->wrap_start, c->width, c->indent1, c->indent2); |
| c->wrap_start = sb->len; |
| c->width = new_width; |
| c->indent1 = new_indent1; |
| c->indent2 = new_indent2; |
| } |
| |
| static size_t format_commit_one(struct strbuf *sb, const char *placeholder, |
| void *context) |
| { |
| struct format_commit_context *c = context; |
| const struct commit *commit = c->commit; |
| const char *msg = c->message; |
| struct commit_list *p; |
| int h1, h2; |
| |
| /* these are independent of the commit */ |
| switch (placeholder[0]) { |
| case 'C': |
| if (placeholder[1] == '(') { |
| const char *end = strchr(placeholder + 2, ')'); |
| char color[COLOR_MAXLEN]; |
| if (!end) |
| return 0; |
| color_parse_mem(placeholder + 2, |
| end - (placeholder + 2), |
| "--pretty format", color); |
| strbuf_addstr(sb, color); |
| return end - placeholder + 1; |
| } |
| if (!prefixcmp(placeholder + 1, "red")) { |
| strbuf_addstr(sb, GIT_COLOR_RED); |
| return 4; |
| } else if (!prefixcmp(placeholder + 1, "green")) { |
| strbuf_addstr(sb, GIT_COLOR_GREEN); |
| return 6; |
| } else if (!prefixcmp(placeholder + 1, "blue")) { |
| strbuf_addstr(sb, GIT_COLOR_BLUE); |
| return 5; |
| } else if (!prefixcmp(placeholder + 1, "reset")) { |
| strbuf_addstr(sb, GIT_COLOR_RESET); |
| return 6; |
| } else |
| return 0; |
| case 'n': /* newline */ |
| strbuf_addch(sb, '\n'); |
| return 1; |
| case 'x': |
| /* %x00 == NUL, %x0a == LF, etc. */ |
| if (0 <= (h1 = hexval_table[0xff & placeholder[1]]) && |
| h1 <= 16 && |
| 0 <= (h2 = hexval_table[0xff & placeholder[2]]) && |
| h2 <= 16) { |
| strbuf_addch(sb, (h1<<4)|h2); |
| return 3; |
| } else |
| return 0; |
| case 'w': |
| if (placeholder[1] == '(') { |
| unsigned long width = 0, indent1 = 0, indent2 = 0; |
| char *next; |
| const char *start = placeholder + 2; |
| const char *end = strchr(start, ')'); |
| if (!end) |
| return 0; |
| if (end > start) { |
| width = strtoul(start, &next, 10); |
| if (*next == ',') { |
| indent1 = strtoul(next + 1, &next, 10); |
| if (*next == ',') { |
| indent2 = strtoul(next + 1, |
| &next, 10); |
| } |
| } |
| if (*next != ')') |
| return 0; |
| } |
| rewrap_message_tail(sb, c, width, indent1, indent2); |
| return end - placeholder + 1; |
| } else |
| return 0; |
| } |
| |
| /* these depend on the commit */ |
| if (!commit->object.parsed) |
| parse_object(commit->object.sha1); |
| |
| switch (placeholder[0]) { |
| case 'H': /* commit hash */ |
| strbuf_addstr(sb, sha1_to_hex(commit->object.sha1)); |
| return 1; |
| case 'h': /* abbreviated commit hash */ |
| if (add_again(sb, &c->abbrev_commit_hash)) |
| return 1; |
| strbuf_addstr(sb, find_unique_abbrev(commit->object.sha1, |
| c->pretty_ctx->abbrev)); |
| c->abbrev_commit_hash.len = sb->len - c->abbrev_commit_hash.off; |
| return 1; |
| case 'T': /* tree hash */ |
| strbuf_addstr(sb, sha1_to_hex(commit->tree->object.sha1)); |
| return 1; |
| case 't': /* abbreviated tree hash */ |
| if (add_again(sb, &c->abbrev_tree_hash)) |
| return 1; |
| strbuf_addstr(sb, find_unique_abbrev(commit->tree->object.sha1, |
| c->pretty_ctx->abbrev)); |
| c->abbrev_tree_hash.len = sb->len - c->abbrev_tree_hash.off; |
| return 1; |
| case 'P': /* parent hashes */ |
| for (p = commit->parents; p; p = p->next) { |
| if (p != commit->parents) |
| strbuf_addch(sb, ' '); |
| strbuf_addstr(sb, sha1_to_hex(p->item->object.sha1)); |
| } |
| return 1; |
| case 'p': /* abbreviated parent hashes */ |
| if (add_again(sb, &c->abbrev_parent_hashes)) |
| return 1; |
| for (p = commit->parents; p; p = p->next) { |
| if (p != commit->parents) |
| strbuf_addch(sb, ' '); |
| strbuf_addstr(sb, find_unique_abbrev( |
| p->item->object.sha1, |
| c->pretty_ctx->abbrev)); |
| } |
| c->abbrev_parent_hashes.len = sb->len - |
| c->abbrev_parent_hashes.off; |
| return 1; |
| case 'm': /* left/right/bottom */ |
| strbuf_addstr(sb, get_revision_mark(NULL, commit)); |
| return 1; |
| case 'd': |
| format_decoration(sb, commit); |
| return 1; |
| case 'g': /* reflog info */ |
| switch(placeholder[1]) { |
| case 'd': /* reflog selector */ |
| case 'D': |
| if (c->pretty_ctx->reflog_info) |
| get_reflog_selector(sb, |
| c->pretty_ctx->reflog_info, |
| c->pretty_ctx->date_mode, |
| (placeholder[1] == 'd')); |
| return 2; |
| case 's': /* reflog message */ |
| if (c->pretty_ctx->reflog_info) |
| get_reflog_message(sb, c->pretty_ctx->reflog_info); |
| return 2; |
| } |
| return 0; /* unknown %g placeholder */ |
| case 'N': |
| if (c->pretty_ctx->show_notes) { |
| format_display_notes(commit->object.sha1, sb, |
| get_log_output_encoding(), 0); |
| return 1; |
| } |
| return 0; |
| } |
| |
| /* For the rest we have to parse the commit header. */ |
| if (!c->commit_header_parsed) |
| parse_commit_header(c); |
| |
| switch (placeholder[0]) { |
| case 'a': /* author ... */ |
| return format_person_part(sb, placeholder[1], |
| msg + c->author.off, c->author.len, |
| c->pretty_ctx->date_mode); |
| case 'c': /* committer ... */ |
| return format_person_part(sb, placeholder[1], |
| msg + c->committer.off, c->committer.len, |
| c->pretty_ctx->date_mode); |
| case 'e': /* encoding */ |
| strbuf_add(sb, msg + c->encoding.off, c->encoding.len); |
| return 1; |
| case 'B': /* raw body */ |
| /* message_off is always left at the initial newline */ |
| strbuf_addstr(sb, msg + c->message_off + 1); |
| return 1; |
| } |
| |
| /* Now we need to parse the commit message. */ |
| if (!c->commit_message_parsed) |
| parse_commit_message(c); |
| |
| switch (placeholder[0]) { |
| case 's': /* subject */ |
| format_subject(sb, msg + c->subject_off, " "); |
| return 1; |
| case 'f': /* sanitized subject */ |
| format_sanitized_subject(sb, msg + c->subject_off); |
| return 1; |
| case 'b': /* body */ |
| strbuf_addstr(sb, msg + c->body_off); |
| return 1; |
| } |
| return 0; /* unknown placeholder */ |
| } |
| |
| static size_t format_commit_item(struct strbuf *sb, const char *placeholder, |
| void *context) |
| { |
| int consumed; |
| size_t orig_len; |
| enum { |
| NO_MAGIC, |
| ADD_LF_BEFORE_NON_EMPTY, |
| DEL_LF_BEFORE_EMPTY, |
| ADD_SP_BEFORE_NON_EMPTY |
| } magic = NO_MAGIC; |
| |
| switch (placeholder[0]) { |
| case '-': |
| magic = DEL_LF_BEFORE_EMPTY; |
| break; |
| case '+': |
| magic = ADD_LF_BEFORE_NON_EMPTY; |
| break; |
| case ' ': |
| magic = ADD_SP_BEFORE_NON_EMPTY; |
| break; |
| default: |
| break; |
| } |
| if (magic != NO_MAGIC) |
| placeholder++; |
| |
| orig_len = sb->len; |
| consumed = format_commit_one(sb, placeholder, context); |
| if (magic == NO_MAGIC) |
| return consumed; |
| |
| if ((orig_len == sb->len) && magic == DEL_LF_BEFORE_EMPTY) { |
| while (sb->len && sb->buf[sb->len - 1] == '\n') |
| strbuf_setlen(sb, sb->len - 1); |
| } else if (orig_len != sb->len) { |
| if (magic == ADD_LF_BEFORE_NON_EMPTY) |
| strbuf_insert(sb, orig_len, "\n", 1); |
| else if (magic == ADD_SP_BEFORE_NON_EMPTY) |
| strbuf_insert(sb, orig_len, " ", 1); |
| } |
| return consumed + 1; |
| } |
| |
| static size_t userformat_want_item(struct strbuf *sb, const char *placeholder, |
| void *context) |
| { |
| struct userformat_want *w = context; |
| |
| if (*placeholder == '+' || *placeholder == '-' || *placeholder == ' ') |
| placeholder++; |
| |
| switch (*placeholder) { |
| case 'N': |
| w->notes = 1; |
| break; |
| } |
| return 0; |
| } |
| |
| void userformat_find_requirements(const char *fmt, struct userformat_want *w) |
| { |
| struct strbuf dummy = STRBUF_INIT; |
| |
| if (!fmt) { |
| if (!user_format) |
| return; |
| fmt = user_format; |
| } |
| strbuf_expand(&dummy, fmt, userformat_want_item, w); |
| strbuf_release(&dummy); |
| } |
| |
| void format_commit_message(const struct commit *commit, |
| const char *format, struct strbuf *sb, |
| const struct pretty_print_context *pretty_ctx) |
| { |
| struct format_commit_context context; |
| static const char utf8[] = "UTF-8"; |
| const char *enc; |
| const char *output_enc = pretty_ctx->output_encoding; |
| |
| memset(&context, 0, sizeof(context)); |
| context.commit = commit; |
| context.pretty_ctx = pretty_ctx; |
| context.wrap_start = sb->len; |
| context.message = commit->buffer; |
| if (output_enc) { |
| enc = get_header(commit, "encoding"); |
| enc = enc ? enc : utf8; |
| if (strcmp(enc, output_enc)) |
| context.message = logmsg_reencode(commit, output_enc); |
| } |
| |
| strbuf_expand(sb, format, format_commit_item, &context); |
| rewrap_message_tail(sb, &context, 0, 0, 0); |
| |
| if (context.message != commit->buffer) |
| free(context.message); |
| } |
| |
| static void pp_header(const struct pretty_print_context *pp, |
| const char *encoding, |
| const struct commit *commit, |
| const char **msg_p, |
| struct strbuf *sb) |
| { |
| int parents_shown = 0; |
| |
| for (;;) { |
| const char *line = *msg_p; |
| int linelen = get_one_line(*msg_p); |
| |
| if (!linelen) |
| return; |
| *msg_p += linelen; |
| |
| if (linelen == 1) |
| /* End of header */ |
| return; |
| |
| if (pp->fmt == CMIT_FMT_RAW) { |
| strbuf_add(sb, line, linelen); |
| continue; |
| } |
| |
| if (!memcmp(line, "parent ", 7)) { |
| if (linelen != 48) |
| die("bad parent line in commit"); |
| continue; |
| } |
| |
| if (!parents_shown) { |
| struct commit_list *parent; |
| int num; |
| for (parent = commit->parents, num = 0; |
| parent; |
| parent = parent->next, num++) |
| ; |
| /* with enough slop */ |
| strbuf_grow(sb, num * 50 + 20); |
| add_merge_info(pp, sb, commit); |
| parents_shown = 1; |
| } |
| |
| /* |
| * MEDIUM == DEFAULT shows only author with dates. |
| * FULL shows both authors but not dates. |
| * FULLER shows both authors and dates. |
| */ |
| if (!memcmp(line, "author ", 7)) { |
| strbuf_grow(sb, linelen + 80); |
| pp_user_info(pp, "Author", sb, line + 7, encoding); |
| } |
| if (!memcmp(line, "committer ", 10) && |
| (pp->fmt == CMIT_FMT_FULL || pp->fmt == CMIT_FMT_FULLER)) { |
| strbuf_grow(sb, linelen + 80); |
| pp_user_info(pp, "Commit", sb, line + 10, encoding); |
| } |
| } |
| } |
| |
| void pp_title_line(const struct pretty_print_context *pp, |
| const char **msg_p, |
| struct strbuf *sb, |
| const char *encoding, |
| int need_8bit_cte) |
| { |
| struct strbuf title; |
| |
| strbuf_init(&title, 80); |
| *msg_p = format_subject(&title, *msg_p, |
| pp->preserve_subject ? "\n" : " "); |
| |
| strbuf_grow(sb, title.len + 1024); |
| if (pp->subject) { |
| strbuf_addstr(sb, pp->subject); |
| add_rfc2047(sb, title.buf, title.len, encoding); |
| } else { |
| strbuf_addbuf(sb, &title); |
| } |
| strbuf_addch(sb, '\n'); |
| |
| if (need_8bit_cte > 0) { |
| const char *header_fmt = |
| "MIME-Version: 1.0\n" |
| "Content-Type: text/plain; charset=%s\n" |
| "Content-Transfer-Encoding: 8bit\n"; |
| strbuf_addf(sb, header_fmt, encoding); |
| } |
| if (pp->after_subject) { |
| strbuf_addstr(sb, pp->after_subject); |
| } |
| if (pp->fmt == CMIT_FMT_EMAIL) { |
| strbuf_addch(sb, '\n'); |
| } |
| strbuf_release(&title); |
| } |
| |
| void pp_remainder(const struct pretty_print_context *pp, |
| const char **msg_p, |
| struct strbuf *sb, |
| int indent) |
| { |
| int first = 1; |
| for (;;) { |
| const char *line = *msg_p; |
| int linelen = get_one_line(line); |
| *msg_p += linelen; |
| |
| if (!linelen) |
| break; |
| |
| if (is_empty_line(line, &linelen)) { |
| if (first) |
| continue; |
| if (pp->fmt == CMIT_FMT_SHORT) |
| break; |
| } |
| first = 0; |
| |
| strbuf_grow(sb, linelen + indent + 20); |
| if (indent) { |
| memset(sb->buf + sb->len, ' ', indent); |
| strbuf_setlen(sb, sb->len + indent); |
| } |
| strbuf_add(sb, line, linelen); |
| strbuf_addch(sb, '\n'); |
| } |
| } |
| |
| char *reencode_commit_message(const struct commit *commit, const char **encoding_p) |
| { |
| const char *encoding; |
| |
| encoding = get_log_output_encoding(); |
| if (encoding_p) |
| *encoding_p = encoding; |
| return logmsg_reencode(commit, encoding); |
| } |
| |
| void pretty_print_commit(const struct pretty_print_context *pp, |
| const struct commit *commit, |
| struct strbuf *sb) |
| { |
| unsigned long beginning_of_body; |
| int indent = 4; |
| const char *msg = commit->buffer; |
| char *reencoded; |
| const char *encoding; |
| int need_8bit_cte = pp->need_8bit_cte; |
| |
| if (pp->fmt == CMIT_FMT_USERFORMAT) { |
| format_commit_message(commit, user_format, sb, pp); |
| return; |
| } |
| |
| reencoded = reencode_commit_message(commit, &encoding); |
| if (reencoded) { |
| msg = reencoded; |
| } |
| |
| if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL) |
| indent = 0; |
| |
| /* |
| * We need to check and emit Content-type: to mark it |
| * as 8-bit if we haven't done so. |
| */ |
| if (pp->fmt == CMIT_FMT_EMAIL && need_8bit_cte == 0) { |
| int i, ch, in_body; |
| |
| for (in_body = i = 0; (ch = msg[i]); i++) { |
| if (!in_body) { |
| /* author could be non 7-bit ASCII but |
| * the log may be so; skip over the |
| * header part first. |
| */ |
| if (ch == '\n' && msg[i+1] == '\n') |
| in_body = 1; |
| } |
| else if (non_ascii(ch)) { |
| need_8bit_cte = 1; |
| break; |
| } |
| } |
| } |
| |
| pp_header(pp, encoding, commit, &msg, sb); |
| if (pp->fmt != CMIT_FMT_ONELINE && !pp->subject) { |
| strbuf_addch(sb, '\n'); |
| } |
| |
| /* Skip excess blank lines at the beginning of body, if any... */ |
| msg = skip_empty_lines(msg); |
| |
| /* These formats treat the title line specially. */ |
| if (pp->fmt == CMIT_FMT_ONELINE || pp->fmt == CMIT_FMT_EMAIL) |
| pp_title_line(pp, &msg, sb, encoding, need_8bit_cte); |
| |
| beginning_of_body = sb->len; |
| if (pp->fmt != CMIT_FMT_ONELINE) |
| pp_remainder(pp, &msg, sb, indent); |
| strbuf_rtrim(sb); |
| |
| /* Make sure there is an EOLN for the non-oneline case */ |
| if (pp->fmt != CMIT_FMT_ONELINE) |
| strbuf_addch(sb, '\n'); |
| |
| /* |
| * The caller may append additional body text in e-mail |
| * format. Make sure we did not strip the blank line |
| * between the header and the body. |
| */ |
| if (pp->fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body) |
| strbuf_addch(sb, '\n'); |
| |
| if (pp->show_notes) |
| format_display_notes(commit->object.sha1, sb, encoding, |
| NOTES_SHOW_HEADER | NOTES_INDENT); |
| |
| free(reencoded); |
| } |
| |
| void pp_commit_easy(enum cmit_fmt fmt, const struct commit *commit, |
| struct strbuf *sb) |
| { |
| struct pretty_print_context pp = {0}; |
| pp.fmt = fmt; |
| pretty_print_commit(&pp, commit, sb); |
| } |