Strbuf API extensions and fixes.

  * Add strbuf_rtrim to remove trailing spaces.
  * Add strbuf_insert to insert data at a given position.
  * Off-by one fix in strbuf_addf: strbuf_avail() does not counts the final
    \0 so the overflow test for snprintf is the strict comparison. This is
    not critical as the growth mechanism chosen will always allocate _more_
    memory than asked, so the second test will not fail. It's some kind of
    miracle though.
  * Add size extension hints for strbuf_init and strbuf_read. If 0, default
    applies, else:
      + initial buffer has the given size for strbuf_init.
      + first growth checks it has at least this size rather than the
        default 8192.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/mktree.c b/mktree.c
index 2e84889c0..3891cd9fb 100644
--- a/mktree.c
+++ b/mktree.c
@@ -51,9 +51,8 @@ static void write_tree(unsigned char *sha1)
 	qsort(entries, used, sizeof(*entries), ent_compare);
 	for (size = i = 0; i < used; i++)
 		size += 32 + entries[i]->len;
-	strbuf_init(&buf);
-	strbuf_grow(&buf, size);
 
+	strbuf_init(&buf, size);
 	for (i = 0; i < used; i++) {
 		struct treeent *ent = entries[i];
 		strbuf_addf(&buf, "%o %s%c", ent->mode, ent->name, '\0');
@@ -83,7 +82,7 @@ int main(int ac, char **av)
 		av++;
 	}
 
-	strbuf_init(&sb);
+	strbuf_init(&sb, 0);
 	while (1) {
 		char *ptr, *ntr;
 		unsigned mode;