48 lines
1 KiB
Ruby
48 lines
1 KiB
Ruby
# frozen_string_literal: true
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require 'optparse'
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COLUMNS = 3
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def run
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listed_filenames = option_filenames
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filenames_matrix = slice_filenames(listed_filenames)
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filled_filenames = fill_filenames(filenames_matrix)
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arrange_filenames(filled_filenames)
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end
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def option_filenames
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params = ARGV.getopts('a', 'r')
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flags = params['a'] ? File::FNM_DOTMATCH : 0
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listing = Dir.glob('*', flags)
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if params['r']
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listing.reverse
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else
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listing
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end
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end
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def slice_filenames(listed_filenames)
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columns_size = listed_filenames.size.ceildiv(COLUMNS)
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listed_filenames.each_slice(columns_size).to_a
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end
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def fill_filenames(filenames_matrix)
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array_size = filenames_matrix.map(&:size).max
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filenames_matrix.each do |slice|
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slice << '' while slice.size < array_size
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end
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filenames_matrix.transpose
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end
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def arrange_filenames(filled_filenames)
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filenames_count = filled_filenames.flatten.map(&:size).max
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filled_filenames.each do |arrange|
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arrange.each do |arranged|
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print arranged.ljust(filenames_count + 5)
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end
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puts
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end
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end
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run
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