diff_index_show_file  310 diff-lib.c     	diff_index_show_file(revs, "+", new, sha1, !is_null_sha1(sha1), mode, dirty_submodule);
diff_index_show_file  326 diff-lib.c     			diff_index_show_file(revs, "-", old,
diff_index_show_file  411 diff-lib.c     		diff_index_show_file(revs, "-", tree, tree->sha1, 1, tree->ce_mode, 0);