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@bmarini
Created September 14, 2011 21:55
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CLI progress bar in ruby
class ProgressBar
def initialize(units=60)
@units = units.to_f
end
def print(completed, total)
norm = 1.0 / (total / @units)
progress = (completed * norm).ceil
pending = @units - progress
Kernel.print "[#{'=' * progress }#{' ' * ( pending )}] #{percentage(completed, total)}%\r"
end
def percentage(completed, total)
( ( completed / total.to_f ) * 100 ).round
end
end
# Usage:
#
# bar = ProgressBar.new
# bar.print(50, 100)
#
# => [============================== ] 50%
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