module Renumber
Constants
- VERSION
Public Instance Methods
change_files(path, prefix=nil, suffix=nil)
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# File lib/renumber.rb, line 12 def change_files(path, prefix=nil, suffix=nil) sorted_files = sorted_files(path) return if sorted_files.length == 0 zeros_length = Math.log10(sorted_files.length).ceil sorted_files.each_with_index do |file, index| File.rename(file, "#{prefix}#{index.to_s.rjust(zeros_length, '0')}#{suffix}") end end
sorted_files(path)
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# File lib/renumber.rb, line 4 def sorted_files(path) raise ArgumentError, 'Path must be a directory' unless File.directory?(path) Dir.chdir(path) file_entries_from_path('.').sort end
Private Instance Methods
file_entries_from_path(path)
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# File lib/renumber.rb, line 25 def file_entries_from_path(path) Dir.entries(path).select { |file| File.file?(file) } end