tput is not defined in Windows.

[lanastasov]

lib/git_wayback_machine/navigator.rb:44:in 'tput cols'

and

lib/git_wayback_machine/history.rb:14:in 'tput cols'

[kaievns]

that is probably the case. but unfortunately i don't have a windows machine to fix it

[soumyaray]

not a windows user either here. but @lanastasov, does it work if you enable bash shell on windows 10?