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fast-import: use the diff_delta() max_delta_size argument

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This let diff_delta() abort early if it is going to bust the given
size limit.  Also, only objects larger than 20 bytes are considered
as objects smaller than that are most certainly going to produce
larger deltas than the original object due to the additional headers.

Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Nicolas Pitre 2010-02-17 14:05:56 -05:00 committed by Junio C Hamano
parent 8c2ca8dd8a
commit b500d5e11e
1 changed files with 2 additions and 6 deletions
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8
fast-import.c
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@ -1041,14 +1041,10 @@ static int store_object(
return 1;
}
if (last && last->data.buf && last->depth < max_depth) {
if (last && last->data.buf && last->depth < max_depth && dat->len > 20) {
delta = diff_delta(last->data.buf, last->data.len,
dat->buf, dat->len,
&deltalen, 0);
if (delta && deltalen >= dat->len) {
free(delta);
delta = NULL;
}
&deltalen, dat->len - 20);
} else
delta = NULL;