sha1-name.c: remove implicit dependency on the_index

diff --git a/builtin/diff-tree.c b/builtin/diff-tree.c
index ef996126d7b521ea1de2c837e4ed97fdcb6f1e71..42bc1eb41db8287ab9f64445ec2a151f216d8840 100644 (file)
--- a/builtin/diff-tree.c
+++ b/builtin/diff-tree.c
@@ -165,7 +165,7 @@ int cmd_diff_tree(int argc, const char **argv, const char *prefix)
 
                if (opt->diffopt.detect_rename) {
                        if (!the_index.cache)
-                               read_index(&the_index);
+                               repo_read_index(the_repository);
                        opt->diffopt.setup |= DIFF_SETUP_USE_SIZE_CACHE;
                }
                while (fgets(line, sizeof(line), stdin)) {