t/t4003-diff-rename-1: use modern options to "diff"

diff --git a/diff-helper.c b/diff-helper.c
index 4e966db769251dfab591d48561a131f778d75336..568d5ae356c90177b376561c8b71c28b3c8d3f2f 100644 (file)
--- a/diff-helper.c
+++ b/diff-helper.c
@@ -9,6 +9,7 @@
 static int detect_rename = 0;
 static int diff_score_opt = 0;
 static int generate_patch = 1;
+static char *pickaxe = 0;
 
 static int parse_oneside_change(const char *cp, int *mode,
                                unsigned char *sha1, char *path)
@@ -93,7 +94,7 @@ static int parse_diff_raw_output(const char *buf)
 }
 
 static const char *diff_helper_usage =
-       "git-diff-helper [-z] [-R] [-M] [-C] paths...";
+       "git-diff-helper [-z] [-R] [-M] [-C] [-S<string>] paths...";
 
 int main(int ac, const char **av) {
        struct strbuf sb;
@@ -117,14 +118,17 @@ int main(int ac, const char **av) {
                        detect_rename = 2;
                        diff_score_opt = diff_scoreopt_parse(av[1]);
                }
+               else if (av[1][1] == 'S') {
+                       pickaxe = av[1] + 2;
+               }
                else
                        usage(diff_helper_usage);
                ac--; av++;
        }
        /* the remaining parameters are paths patterns */
 
-       diff_setup(detect_rename, diff_score_opt, reverse,
-                  (generate_patch ? -1 : line_termination),
+       diff_setup(detect_rename, diff_score_opt, pickaxe,
+                  reverse, (generate_patch ? -1 : line_termination),
                   av+1, ac-1);
 
        while (1) {