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21 lines
662 B
Ruby
21 lines
662 B
Ruby
#!/usr/bin/env ruby
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Ops = {
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:+ => [lambda { |x| x + 5 > 100 ? 100 : x + 5 }, "increased"],
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:- => [lambda { |x| x - 5 < 0 ? 0 : x - 5 } , "decreased"]
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}
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def vol_op id, vol
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[Ops[id].first.call(vol), Ops[id].last]
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end
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op = ARGV.shift.to_sym
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unless Ops.keys.include?(op)
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raise "#{op} is not a valid argument. Expected one of: #{Ops.keys.join(', ')}."
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else
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`amixer get Master`.split("\n").grep(/%/).first =~ /\[(\d+)/
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vol = $1.to_i
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new_vol, action = *vol_op(op, vol)
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system("amixer set Master #{new_vol}%")
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system("notify-send --urgency=low --icon=~/.icons/audio-volume-medium.gif --expire-time=500 \"Volume #{action}\" \"#{new_vol}%\"")
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end
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