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diff: don't retrieve binary blobs for diffstat

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We only need the size, which is much cheaper to get,
especially if it is a big binary file.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2011-02-19 03:16:32 -05:00 committed by Junio C Hamano
parent ded0abc73c
commit abb371a1ef
1 changed files with 11 additions and 4 deletions
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15
diff.c
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@ -235,6 +235,15 @@ static int fill_mmfile(mmfile_t *mf, struct diff_filespec *one)
return 0;
}
/* like fill_mmfile, but only for size, so we can avoid retrieving blob */
static unsigned long diff_filespec_size(struct diff_filespec *one)
{
if (!DIFF_FILE_VALID(one))
return 0;
diff_populate_filespec(one, 1);
return one->size;
}
static int count_trailing_blank(mmfile_t *mf, unsigned ws_rule)
{
char *ptr = mf->ptr;
@ -1813,11 +1822,9 @@ static void builtin_diffstat(const char *name_a, const char *name_b,
}
if (diff_filespec_is_binary(one) || diff_filespec_is_binary(two)) {
if (fill_mmfile(&mf1, one) < 0 || fill_mmfile(&mf2, two) < 0)
die("unable to read files to diff");
data->is_binary = 1;
data->added = mf2.size;
data->deleted = mf1.size;
data->added = diff_filespec_size(two);
data->deleted = diff_filespec_size(one);
}
else if (complete_rewrite) {