char *fileurl = cgit_fileurl(ctx.repo->url, "tree", old_file->path, id_str);
html("<td class='lineno'><a href='");
html(fileurl);
char *fileurl = cgit_fileurl(ctx.repo->url, "tree", old_file->path, id_str);
html("<td class='lineno'><a href='");
html(fileurl);
char *fileurl = cgit_fileurl(ctx.repo->url, "tree", new_file->path, id_str);
html("<td class='lineno'><a href='");
html(fileurl);
char *fileurl = cgit_fileurl(ctx.repo->url, "tree", new_file->path, id_str);
html("<td class='lineno'><a href='");
html(fileurl);