my $js = read_file 'static/js/all.js';
write_file 'static/js/all.js', '//# sourceMappingURL=/static/js/js.map', "\n", $js;
system 'cp', '-rp', 'js', 'static/';
my $js = read_file 'static/js/all.js';
write_file 'static/js/all.js', '//# sourceMappingURL=/static/js/js.map', "\n", $js;
system 'cp', '-rp', 'js', 'static/';