Clarify git-diff-cache semantics in the tutorial.

diff --git a/diff-cache.c b/diff-cache.c
index 7d067a8f4406aeac53748b5284d7f9bff308aba6..2aaf16a39dafbf0e03893f61ebbf54f9dae06ae7 100644 (file)
--- a/diff-cache.c
+++ b/diff-cache.c
@@ -10,6 +10,7 @@ static int diff_score_opt = 0;
 static const char *pickaxe = NULL;
 static int pickaxe_opts = 0;
 static int diff_break_opt = -1;
+static const char *orderfile = NULL;
 
 /* A file entry went away or appeared */
 static void show_file(const char *prefix, struct cache_entry *ce, unsigned char *sha1, unsigned int mode)
@@ -215,6 +216,10 @@ int main(int argc, const char **argv)
                        pickaxe = arg + 2;
                        continue;
                }
+               if (!strncmp(arg, "-O", 2)) {
+                       orderfile = arg + 2;
+                       continue;
+               }
                if (!strcmp(arg, "--pickaxe-all")) {
                        pickaxe_opts = DIFF_PICKAXE_ALL;
                        continue;
@@ -249,7 +254,8 @@ int main(int argc, const char **argv)
        diffcore_std(pathspec ? : NULL,
                     detect_rename, diff_score_opt,
                     pickaxe, pickaxe_opts,
-                    diff_break_opt);
+                    diff_break_opt,
+                    orderfile);
        diff_flush(diff_output_format, 1);
        return ret;
 }