X-Git-Url: https://git.verplant.org/?a=blobdiff_plain;f=diff-files.c;h=5c895cca75666818dc6ebc2bfa9aa0875af73756;hb=000182eacf99cde27d5916aa415921924b82972c;hp=3b05497a8573427f28a00e86fa4f2bf7bf920e74;hpb=67574c403f1e27660bbd0348b81b31adc9889b20;p=git.git

diff --git a/diff-files.c b/diff-files.c
index 3b05497a..5c895cca 100644
--- a/diff-files.c
+++ b/diff-files.c
@@ -7,7 +7,7 @@
 #include "diff.h"
 
 static const char *diff_files_usage =
-"git-diff-files [-p] [-q] [-r] [-z] [-M] [-C] [-R] [-S<string>] [paths...]";
+"git-diff-files [-p] [-q] [-r] [-z] [-M] [-C] [-R] [-S<string>] [-O<orderfile>] [paths...]";
 
 static int diff_output_format = DIFF_FORMAT_HUMAN;
 static int detect_rename = 0;
@@ -61,14 +61,21 @@ int main(int argc, const char **argv)
 			orderfile = argv[1] + 2;
 		else if (!strcmp(argv[1], "--pickaxe-all"))
 			pickaxe_opts = DIFF_PICKAXE_ALL;
-		else if (!strncmp(argv[1], "-B", 2))
-			diff_break_opt = diff_scoreopt_parse(argv[1]);
+		else if (!strncmp(argv[1], "-B", 2)) {
+			if ((diff_break_opt =
+			     diff_scoreopt_parse(argv[1])) == -1)
+				usage(diff_files_usage);
+		}
 		else if (!strncmp(argv[1], "-M", 2)) {
-			diff_score_opt = diff_scoreopt_parse(argv[1]);
+			if ((diff_score_opt =
+			     diff_scoreopt_parse(argv[1])) == -1)
+				usage(diff_files_usage);
 			detect_rename = DIFF_DETECT_RENAME;
 		}
 		else if (!strncmp(argv[1], "-C", 2)) {
-			diff_score_opt = diff_scoreopt_parse(argv[1]);
+			if ((diff_score_opt =
+			     diff_scoreopt_parse(argv[1])) == -1)
+				usage(diff_files_usage);
 			detect_rename = DIFF_DETECT_COPY;
 		}
 		else