Bug#782313: game-data-packager: improve progress bars

[Alexandre Detiste]

Package: game-data-packager
Version: 40
Severity: wishlist

Running game-data-packager through a slow terminal
(here GoogleChrome -> BlueCoat + ShellInABox -> ssh -> actual pc)
will slow it down because the progress bar refresh too much.

It should refresh less when
  " os.getenv('REMOTEHOST') not in ('localhost',None) 
 or os.getenv('SSH_CONNECTION')" ... 
  / or allways ?
  / refresh at most at every percent increase ?

 [running headless]
 systemd-run --user --setenv=DEBUG=1 time /usr/games/game-data-packager doom3
             --package doom3-classic-data --destination /tmp

 avr 10 11:38:00 antec systemd-journal[224]: Suppressed 11988 messages from /user.slice/user-1000.slice
 avr 10 11:38:00 antec time[6564]: generated "/tmp/doom3-classic-data_41_all.deb"
 avr 10 11:38:00 antec time[6564]: 99.34user 2.28system 1:42.80elapsed 98%CPU

 [through slow tty]
 DEBUG=1 time /usr/games/game-data-packager doom3 --package doom3-classic-data --destination /tmp
 generated "/tmp/doom3-classic-data_41_all.deb"
 101.13user 2.83system 14:49.73elapsed 11%CPU

------------------

lgogdownloader uses unicode characters 2588-258F
to display an awesome progressbar:

https://github.com/Sude-/lgogdownloader/blob/master/src/progressbar.cpp

This can be tested without buying anything, by downloading some freeware:
  
 lgogdownloader  --game tyrian_2000 --download --directory /tmp