am: avoid diff_opt_parse()

diff --git a/diff.c b/diff.c
index 8b770cd396737172342c4de4f3e36d25f75934d9..11f26285c37a61da1d636713c4e8cdbe095c03d2 100644 (file)
--- a/diff.c
+++ b/diff.c
@@ -4692,6 +4692,12 @@ static unsigned filter_bit_tst(char status, const struct diff_options *opt)
        return opt->filter & filter_bit[(int) status];
 }
 
+unsigned diff_filter_bit(char status)
+{
+       prepare_filter_bits();
+       return filter_bit[(int) status];
+}
+
 static int diff_opt_diff_filter(const struct option *option,
                                const char *optarg, int unset)
 {