# File lib/archive/tar/minitar/command.rb, line 35 def initialize (title, total, out = STDERR) @title = title @total = total @out = out @bar_width = 80 @bar_mark = "o" @current = 0 @previous = 0 @is_finished = false @start_time = Time.now @previous_time = @start_time @title_width = 14 @format = "%-#{@title_width}s %3d%% %s %s" @format_arguments = [:title, :percentage, :bar, :stat] show end
# File lib/archive/tar/minitar/command.rb, line 182 def file_transfer_mode @format_arguments = [:title, :percentage, :bar, :stat_for_file_transfer] end
# File lib/archive/tar/minitar/command.rb, line 194 def finish @current = @total @is_finished = true show_progress end
# File lib/archive/tar/minitar/command.rb, line 186 def format= (format) @format = format end
# File lib/archive/tar/minitar/command.rb, line 190 def format_arguments= (arguments) @format_arguments = arguments end
# File lib/archive/tar/minitar/command.rb, line 200 def halt @is_finished = true show_progress end
# File lib/archive/tar/minitar/command.rb, line 214 def inc (step = 1) @current += step @current = @total if @current > @total show_progress @previous = @current end
# File lib/archive/tar/minitar/command.rb, line 221 def inspect "(ProgressBar: #{@current}/#{@total})" end
# File lib/archive/tar/minitar/command.rb, line 205 def set (count) if count < 0 || count > @total raise "invalid count: #{count} (total: #{@total})" end @current = count show_progress @previous = @current end
# File lib/archive/tar/minitar/command.rb, line 114 def bar len = percentage * @bar_width / 100 sprintf("|%s%s|", @bar_mark * len, " " * (@bar_width - len)) end
# File lib/archive/tar/minitar/command.rb, line 70 def bytes convert_bytes(@current) end
# File lib/archive/tar/minitar/command.rb, line 53 def convert_bytes (bytes) if bytes < 1024 sprintf("%6dB", bytes) elsif bytes < 1024 * 1000 # 1000kb sprintf("%5.1fKB", bytes.to_f / 1024) elsif bytes < 1024 * 1024 * 1000 # 1000mb sprintf("%5.1fMB", bytes.to_f / 1024 / 1024) else sprintf("%5.1fGB", bytes.to_f / 1024 / 1024 / 1024) end end
# File lib/archive/tar/minitar/command.rb, line 93 def elapsed elapsed = Time.now - @start_time sprintf("Time: %s", format_time(elapsed)) end
# File lib/archive/tar/minitar/command.rb, line 110 def eol if @is_finished then "\n" else "\r" end end
ETA stands for Estimated Time of Arrival.
# File lib/archive/tar/minitar/command.rb, line 83 def eta if @current == 0 "ETA: --:--:--" else elapsed = Time.now - @start_time eta = elapsed * @total / @current - elapsed; sprintf("ETA: %s", format_time(eta)) end end
# File lib/archive/tar/minitar/command.rb, line 74 def format_time (t) t = t.to_i sec = t % 60 min = (t / 60) % 60 hour = t / 3600 sprintf("%02d:%02d:%02d", hour, min, sec); end
# File lib/archive/tar/minitar/command.rb, line 131 def get_width # FIXME: I don't know how portable it is. default_width = 80 # begin # tiocgwinsz = 0x5413 # data = [0, 0, 0, 0].pack("SSSS") # if @out.ioctl(tiocgwinsz, data) >= 0 then # rows, cols, xpixels, ypixels = data.unpack("SSSS") # if cols >= 0 then cols else default_width end # else # default_width # end # rescue Exception # default_width # end end
# File lib/archive/tar/minitar/command.rb, line 119 def percentage(value = nil) if @total.zero? 100 else (value || @current) * 100 / @total end end
# File lib/archive/tar/minitar/command.rb, line 148 def show arguments = @format_arguments.map {|method| send(method) } line = sprintf(@format, *arguments) width = get_width if line.length == width - 1 @out.print(line + eol) elsif line.length >= width @bar_width = [@bar_width - (line.length - width + 1), 0].max if @bar_width == 0 then @out.print(line + eol) else show end else # line.length < width - 1 @bar_width += width - line.length + 1 show end @previous_time = Time.now end
# File lib/archive/tar/minitar/command.rb, line 165 def show_progress if @total.zero? cur_percentage = 100 prev_percentage = 0 else cur_percentage = (@current * 100 / @total).to_i prev_percentage = (@previous * 100 / @total).to_i end if cur_percentage > prev_percentage || Time.now - @previous_time >= 1 || @is_finished show end end
# File lib/archive/tar/minitar/command.rb, line 98 def stat if @is_finished then elapsed else eta end end
# File lib/archive/tar/minitar/command.rb, line 102 def stat_for_file_transfer if @is_finished then sprintf("%s %s %s", bytes, transfer_rate, elapsed) else sprintf("%s %s %s", bytes, transfer_rate, eta) end end
# File lib/archive/tar/minitar/command.rb, line 65 def transfer_rate bytes_per_second = @current.to_f / (Time.now - @start_time) sprintf("%s/s", convert_bytes(bytes_per_second)) end