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-rw-r--r--pretty.c885
1 files changed, 885 insertions, 0 deletions
diff --git a/pretty.c b/pretty.c
new file mode 100644
index 000000000..f6ff31264
--- /dev/null
+++ b/pretty.c
@@ -0,0 +1,885 @@
+#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"
+
+static char *user_format;
+
+void get_commit_format(const char *arg, struct rev_info *rev)
+{
+ int i;
+ static struct cmt_fmt_map {
+ const char *n;
+ size_t cmp_len;
+ enum cmit_fmt v;
+ } cmt_fmts[] = {
+ { "raw", 1, CMIT_FMT_RAW },
+ { "medium", 1, CMIT_FMT_MEDIUM },
+ { "short", 1, CMIT_FMT_SHORT },
+ { "email", 1, CMIT_FMT_EMAIL },
+ { "full", 5, CMIT_FMT_FULL },
+ { "fuller", 5, CMIT_FMT_FULLER },
+ { "oneline", 1, CMIT_FMT_ONELINE },
+ };
+
+ rev->use_terminator = 0;
+ if (!arg || !*arg) {
+ rev->commit_format = CMIT_FMT_DEFAULT;
+ return;
+ }
+ if (!prefixcmp(arg, "format:") || !prefixcmp(arg, "tformat:")) {
+ const char *cp = strchr(arg, ':') + 1;
+ free(user_format);
+ user_format = xstrdup(cp);
+ if (arg[0] == 't')
+ rev->use_terminator = 1;
+ rev->commit_format = CMIT_FMT_USERFORMAT;
+ return;
+ }
+ for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
+ if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) &&
+ !strncmp(arg, cmt_fmts[i].n, strlen(arg))) {
+ if (cmt_fmts[i].v == CMIT_FMT_ONELINE)
+ rev->use_terminator = 1;
+ rev->commit_format = cmt_fmts[i].v;
+ return;
+ }
+ }
+
+ die("invalid --pretty format: %s", arg);
+}
+
+/*
+ * 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 */
+int non_ascii(int ch)
+{
+ ch = (ch & 0xff);
+ return ((ch & 0x80) || (ch == 0x1b));
+}
+
+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)
+{
+ int i, last;
+
+ for (i = 0; i < len; i++) {
+ int ch = line[i];
+ if (non_ascii(ch))
+ goto needquote;
+ if ((i + 1 < len) && (ch == '=' && line[i+1] == '?'))
+ goto needquote;
+ }
+ strbuf_add(sb, line, len);
+ return;
+
+needquote:
+ strbuf_grow(sb, len * 3 + strlen(encoding) + 100);
+ strbuf_addf(sb, "=?%s?q?", encoding);
+ for (i = last = 0; i < len; i++) {
+ unsigned ch = line[i] & 0xFF;
+ /*
+ * 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 == ' ') {
+ strbuf_add(sb, line + last, i - last);
+ strbuf_addf(sb, "=%02X", ch);
+ last = i + 1;
+ }
+ }
+ strbuf_add(sb, line + last, len - last);
+ strbuf_addstr(sb, "?=");
+}
+
+void pp_user_info(const char *what, enum cmit_fmt fmt, struct strbuf *sb,
+ const char *line, enum date_mode dmode,
+ const char *encoding)
+{
+ char *date;
+ int namelen;
+ unsigned long time;
+ int tz;
+ const char *filler = " ";
+
+ if (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 (fmt == CMIT_FMT_EMAIL) {
+ char *name_tail = strchr(line, '<');
+ int display_name_length;
+ if (!name_tail)
+ return;
+ while (line < name_tail && isspace(name_tail[-1]))
+ name_tail--;
+ display_name_length = name_tail - line;
+ filler = "";
+ strbuf_addstr(sb, "From: ");
+ add_rfc2047(sb, line, display_name_length, encoding);
+ strbuf_add(sb, name_tail, namelen - display_name_length);
+ strbuf_addch(sb, '\n');
+ } else {
+ strbuf_addf(sb, "%s: %.*s%.*s\n", what,
+ (fmt == CMIT_FMT_FULLER) ? 4 : 0,
+ filler, namelen, line);
+ }
+ switch (fmt) {
+ case CMIT_FMT_MEDIUM:
+ strbuf_addf(sb, "Date: %s\n", show_date(time, tz, dmode));
+ 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, dmode));
+ 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 void add_merge_info(enum cmit_fmt fmt, struct strbuf *sb,
+ const struct commit *commit, int abbrev)
+{
+ struct commit_list *parent = commit->parents;
+
+ if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
+ !parent || !parent->next)
+ return;
+
+ strbuf_addstr(sb, "Merge:");
+
+ while (parent) {
+ struct commit *p = parent->item;
+ const char *hex = NULL;
+ const char *dots;
+ if (abbrev)
+ hex = find_unique_abbrev(p->object.sha1, abbrev);
+ if (!hex)
+ hex = sha1_to_hex(p->object.sha1);
+ dots = (abbrev && strlen(hex) != 40) ? "..." : "";
+ parent = parent->next;
+
+ strbuf_addf(sb, " %s%s", hex, dots);
+ }
+ 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);
+}
+
+static 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(struct strbuf *sb, const char *email)
+{
+ static struct string_list *mail_map;
+ char buffer[1024];
+
+ if (!mail_map) {
+ mail_map = xcalloc(1, sizeof(*mail_map));
+ read_mailmap(mail_map, ".mailmap", NULL);
+ }
+
+ if (!mail_map->nr)
+ return -1;
+
+ if (!map_email(mail_map, email, buffer, sizeof(buffer)))
+ return -1;
+ strbuf_addstr(sb, buffer);
+ return 0;
+}
+
+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;
+
+ /* 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;
+
+ if (part == 'n' || part == 'N') { /* name */
+ while (end > 0 && isspace(msg[end - 1]))
+ end--;
+ if (part != 'N' || !msg[end] || !msg[end + 1] ||
+ mailmap_name(sb, msg + end + 2) < 0)
+ strbuf_add(sb, msg, end);
+ return placeholder_len;
+ }
+ start = ++end; /* save email start position */
+
+ /* advance 'end' to point to email end delimiter */
+ for ( ; end < len && msg[end] != '>'; end++)
+ ; /* do nothing */
+
+ if (end >= len)
+ goto skip;
+
+ if (part == 'e') { /* email */
+ strbuf_add(sb, msg + start, end - 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;
+ enum date_mode dmode;
+
+ /* These offsets are relative to the start of the commit message. */
+ int commit_header_parsed;
+ struct chunk subject;
+ struct chunk author;
+ struct chunk committer;
+ struct chunk encoding;
+ 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;
+};
+
+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->commit->buffer;
+ int i;
+ enum { HEADER, SUBJECT, BODY } state;
+
+ for (i = 0, state = HEADER; msg[i] && state < BODY; i++) {
+ int eol;
+ for (eol = i; msg[eol] && msg[eol] != '\n'; eol++)
+ ; /* do nothing */
+
+ if (state == SUBJECT) {
+ context->subject.off = i;
+ context->subject.len = eol - i;
+ i = eol;
+ }
+ if (i == eol) {
+ state++;
+ /* strip empty lines */
+ while (msg[eol] == '\n' && msg[eol + 1] == '\n')
+ eol++;
+ } 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;
+ if (!msg[i])
+ break;
+ }
+ context->body_off = i;
+ context->commit_header_parsed = 1;
+}
+
+static void format_decoration(struct strbuf *sb, const struct commit *commit)
+{
+ struct name_decoration *d;
+ const char *prefix = " (";
+
+ load_ref_decorations();
+ 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 size_t format_commit_item(struct strbuf *sb, const char *placeholder,
+ void *context)
+{
+ struct format_commit_context *c = context;
+ const struct commit *commit = c->commit;
+ const char *msg = commit->buffer;
+ struct commit_list *p;
+ int h1, h2;
+
+ /* these are independent of the commit */
+ switch (placeholder[0]) {
+ case 'C':
+ if (!prefixcmp(placeholder + 1, "red")) {
+ strbuf_addstr(sb, "\033[31m");
+ return 4;
+ } else if (!prefixcmp(placeholder + 1, "green")) {
+ strbuf_addstr(sb, "\033[32m");
+ return 6;
+ } else if (!prefixcmp(placeholder + 1, "blue")) {
+ strbuf_addstr(sb, "\033[34m");
+ return 5;
+ } else if (!prefixcmp(placeholder + 1, "reset")) {
+ strbuf_addstr(sb, "\033[m");
+ 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;
+ }
+
+ /* 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,
+ DEFAULT_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,
+ DEFAULT_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, DEFAULT_ABBREV));
+ }
+ c->abbrev_parent_hashes.len = sb->len -
+ c->abbrev_parent_hashes.off;
+ return 1;
+ case 'm': /* left/right/bottom */
+ strbuf_addch(sb, (commit->object.flags & BOUNDARY)
+ ? '-'
+ : (commit->object.flags & SYMMETRIC_LEFT)
+ ? '<'
+ : '>');
+ return 1;
+ case 'd':
+ format_decoration(sb, commit);
+ return 1;
+ }
+
+ /* For the rest we have to parse the commit header. */
+ if (!c->commit_header_parsed)
+ parse_commit_header(c);
+
+ switch (placeholder[0]) {
+ case 's': /* subject */
+ strbuf_add(sb, msg + c->subject.off, c->subject.len);
+ return 1;
+ case 'a': /* author ... */
+ return format_person_part(sb, placeholder[1],
+ msg + c->author.off, c->author.len,
+ c->dmode);
+ case 'c': /* committer ... */
+ return format_person_part(sb, placeholder[1],
+ msg + c->committer.off, c->committer.len,
+ c->dmode);
+ case 'e': /* encoding */
+ strbuf_add(sb, msg + c->encoding.off, c->encoding.len);
+ return 1;
+ case 'b': /* body */
+ strbuf_addstr(sb, msg + c->body_off);
+ return 1;
+ }
+ return 0; /* unknown placeholder */
+}
+
+void format_commit_message(const struct commit *commit,
+ const void *format, struct strbuf *sb,
+ enum date_mode dmode)
+{
+ struct format_commit_context context;
+
+ memset(&context, 0, sizeof(context));
+ context.commit = commit;
+ context.dmode = dmode;
+ strbuf_expand(sb, format, format_commit_item, &context);
+}
+
+static void pp_header(enum cmit_fmt fmt,
+ int abbrev,
+ enum date_mode dmode,
+ 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 (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(fmt, sb, commit, abbrev);
+ 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("Author", fmt, sb, line + 7, dmode, encoding);
+ }
+ if (!memcmp(line, "committer ", 10) &&
+ (fmt == CMIT_FMT_FULL || fmt == CMIT_FMT_FULLER)) {
+ strbuf_grow(sb, linelen + 80);
+ pp_user_info("Commit", fmt, sb, line + 10, dmode, encoding);
+ }
+ }
+}
+
+void pp_title_line(enum cmit_fmt fmt,
+ const char **msg_p,
+ struct strbuf *sb,
+ const char *subject,
+ const char *after_subject,
+ const char *encoding,
+ int need_8bit_cte)
+{
+ struct strbuf title;
+
+ strbuf_init(&title, 80);
+
+ for (;;) {
+ const char *line = *msg_p;
+ int linelen = get_one_line(line);
+
+ *msg_p += linelen;
+ if (!linelen || is_empty_line(line, &linelen))
+ break;
+
+ strbuf_grow(&title, linelen + 2);
+ if (title.len) {
+ if (fmt == CMIT_FMT_EMAIL) {
+ strbuf_addch(&title, '\n');
+ }
+ strbuf_addch(&title, ' ');
+ }
+ strbuf_add(&title, line, linelen);
+ }
+
+ strbuf_grow(sb, title.len + 1024);
+ if (subject) {
+ strbuf_addstr(sb, 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 (after_subject) {
+ strbuf_addstr(sb, after_subject);
+ }
+ if (fmt == CMIT_FMT_EMAIL) {
+ strbuf_addch(sb, '\n');
+ }
+ strbuf_release(&title);
+}
+
+void pp_remainder(enum cmit_fmt fmt,
+ 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 (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 = (git_log_output_encoding
+ ? git_log_output_encoding
+ : git_commit_encoding);
+ if (!encoding)
+ encoding = "utf-8";
+ if (encoding_p)
+ *encoding_p = encoding;
+ return logmsg_reencode(commit, encoding);
+}
+
+void pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit,
+ struct strbuf *sb, int abbrev,
+ const char *subject, const char *after_subject,
+ enum date_mode dmode, int need_8bit_cte)
+{
+ unsigned long beginning_of_body;
+ int indent = 4;
+ const char *msg = commit->buffer;
+ char *reencoded;
+ const char *encoding;
+
+ if (fmt == CMIT_FMT_USERFORMAT) {
+ format_commit_message(commit, user_format, sb, dmode);
+ return;
+ }
+
+ reencoded = reencode_commit_message(commit, &encoding);
+ if (reencoded) {
+ msg = reencoded;
+ }
+
+ if (fmt == CMIT_FMT_ONELINE || 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 (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(fmt, abbrev, dmode, encoding, commit, &msg, sb);
+ if (fmt != CMIT_FMT_ONELINE && !subject) {
+ strbuf_addch(sb, '\n');
+ }
+
+ /* Skip excess blank lines at the beginning of body, if any... */
+ for (;;) {
+ int linelen = get_one_line(msg);
+ int ll = linelen;
+ if (!linelen)
+ break;
+ if (!is_empty_line(msg, &ll))
+ break;
+ msg += linelen;
+ }
+
+ /* These formats treat the title line specially. */
+ if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
+ pp_title_line(fmt, &msg, sb, subject,
+ after_subject, encoding, need_8bit_cte);
+
+ beginning_of_body = sb->len;
+ if (fmt != CMIT_FMT_ONELINE)
+ pp_remainder(fmt, &msg, sb, indent);
+ strbuf_rtrim(sb);
+
+ /* Make sure there is an EOLN for the non-oneline case */
+ if (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 (fmt == CMIT_FMT_EMAIL && sb->len <= beginning_of_body)
+ strbuf_addch(sb, '\n');
+ free(reencoded);
+}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-28 04:43:41 +0000