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sequencer.c: require a conforming footer to be preceded by a blank line

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Currently, append_signoff() performs a search for the last line of the
commit buffer by searching back from the end until it hits a newline.  If
it reaches the beginning of the buffer without finding a newline, that
means either the commit message was empty, or there was only one line in it.
In this case, append_signoff will skip the call to has_conforming_footer
since it already knows that it is necessary to append a newline before
appending the sob.

Let's perform this function inside of has_conforming_footer where it
appropriately belongs and generalize it so that we require that the
footer paragraph be an actual distinct paragraph separated by a blank
line.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Brandon Casey 2013-02-12 02:17:33 -08:00 committed by Junio C Hamano
parent cd650a4eee
commit 2cdccad160
1 changed files with 5 additions and 1 deletions
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6
sequencer.c
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@ -1061,6 +1061,10 @@ static int has_conforming_footer(struct strbuf *sb, int ignore_footer)
prev = ch;
}
/* require at least one blank line */
if (prev != '\n' || buf[i] != '\n')
return 0;
/* advance to start of last paragraph */
while (i < len - 1 && buf[i] == '\n')
i++;
@ -1089,7 +1093,7 @@ void append_signoff(struct strbuf *msgbuf, int ignore_footer)
for (i = msgbuf->len - 1 - ignore_footer; i > 0 && msgbuf->buf[i - 1] != '\n'; i--)
; /* do nothing */
if (prefixcmp(msgbuf->buf + i, sob.buf)) {
if (!i || !has_conforming_footer(msgbuf, ignore_footer))
if (!has_conforming_footer(msgbuf, ignore_footer))
strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, "\n", 1);
strbuf_splice(msgbuf, msgbuf->len - ignore_footer, 0, sob.buf, sob.len);
}