Ruby递归目录文件的又一种方法

经常派得上用场，记录一下。

递归文件做一些操作

#encoding:utf-8require 'pathname'def recursive_enum_files(from_path)from_path = Pathname.new(from_path)raise ArgumentError,'must start at a directory.' unless from_path.directory?from_path.enum_for(:find_files,from_path)
endprivate def find_files(parent,&block)parent.children.sortparent.children.each do |child|if child.directory?find_files(child,&block)elseyield child if block_given?endend
endstart_path = 'E:/abcdefg'
recursive_enum_files(start_path).each do |path|puts (File.size?(path)/1024.0/1024.0/1024.0).round(2).to_s + 'GB => ' + path # 列出文件大小
end

对文件夹做一些操作

#encoding:utf-8require 'pathname'def recursive_enum_files(from_path)from_path = Pathname.new(from_path)raise ArgumentError,'must start at a directory.' unless from_path.directory?from_path.enum_for(:find_files,from_path)
endprivate def make_total(s)return Proc.new { |i| s += i }
endprivate def find_files(parent,&block)n = make_total(0)parent.children.each do |child|if child.directory?n.call(find_files(child,&block))elsen.call(File.size?(child))endendyield parent,n.call(0) if block_given?n.call(0)
endstart_path = 'E:/abcdefg'
recursive_enum_files(start_path).each do |path,size|puts (size/1024.0/1024.0/1024.0).round(2).to_s + 'GB => ' + path.to_s if size >= 1024*1024*1024*5 # 大于5GB
end