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pretty: factor out format_subject()

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The next patch will use it.

In the version that was factored out, we can't rely on the len of the
struct strbuf to find out if a line separator needs to be added, as
it might already contain something.  Add a guard variable ("first")
instead.

Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
René Scharfe 2008-12-27 01:39:35 +01:00 committed by Junio C Hamano
parent a010966844
commit 88c44735ab
1 changed files with 24 additions and 18 deletions
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42
pretty.c
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@ -495,6 +495,28 @@ static void parse_commit_header(struct format_commit_context *context)
context->commit_header_parsed = 1;
}
static 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;
strbuf_grow(sb, linelen + 2);
if (!first)
strbuf_addstr(sb, line_separator);
strbuf_add(sb, line, linelen);
first = 0;
}
return msg;
}
static void format_decoration(struct strbuf *sb, const struct commit *commit)
{
struct name_decoration *d;
@ -718,27 +740,11 @@ void pp_title_line(enum cmit_fmt fmt,
const char *encoding,
int need_8bit_cte)
{
const char *line_separator = (fmt == CMIT_FMT_EMAIL) ? "\n " : " ";
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);
}
*msg_p = format_subject(&title, *msg_p, line_separator);
strbuf_grow(sb, title.len + 1024);
if (subject) {