ruby - 如何在 ruby​​ 中复制目录结构，不包括某些文件扩展名

Question

我想编写一个 ruby​​ 脚本来递归复制目录结构，但排除某些文件类型。因此，给定以下目录结构:

folder1
  folder2
    file1.txt
    file2.txt
    file3.cs
    file4.html
  folder2
  folder3
    file4.dll

我想复制这个结构，但不包含.txt 和.cs 文件。因此，生成的目录结构应如下所示:

folder1
  folder2
    file4.html
  folder2
  folder3
    file4.dll

Answer 1

您可以使用查找 模块。这是一个代码片段:

require "find"

ignored_extensions = [".cs",".txt"]

Find.find(path_to_directory) do |file|
  # the name of the current file is in the variable file
  # you have to test it to see if it's a dir or a file using File.directory?
  # and you can get the extension using File.extname

  # this skips over the .cs and .txt files
  next if ignored_extensions.include?(File.extname(file))
  # insert logic to handle other type of files here
  # if the file is a directory, you have to create on your destination dir
  # and if it's a regular file, you just copy it.
end